TW392015B - Washing machine - Google Patents

Abstract

This invention provides a washing machine to reduce vibration and noises when an electromagnetic brake is put on by making a brushless motor revolve a stirrer and a revolving tub with the direct-drive system. This washing machine is equipped with a revolving tub inside the outer tub and a stirrer inside the revolving basket. Three-phase brushless motor 20, which drives the stirrer or the stirrer and the revolving basket together, is provided as well. A regenerative brake, a discharge brake, and a short- circuit brake, are also provided to act as an electromagnetic brake device of the three-phase brushless motor 20.

Description

Printed by the Central Standards Bureau of the Ministry of Economic Affairs and Consumers ’Cooperatives ^ A7 __ B7_ V. Description of the Invention (彳) [Technical Field to which the Invention belongs] The present invention relates to a washing machine equipped with a fell-free motor that drives a rotating stirrer and a rotating tank Composition of washing machine. [Preceding technology] As is well known, a washing machine is provided with a rotating tank which can be used as a washing and dewatering tank in the outer tank, and a rotatable stirring body is provided on the inner bottom of the rotating tank. The stirring body and the rotating tank are constituted by a brushless motor for rotation. In this configuration, when the rinsing operation is performed, the rotation of the brushless motor is decelerated while the rotation tank brake is stopped, and then transmitted to the stirring body, and the stirring body is driven to rotate forward and backward. In addition, when the dehydration operation is performed, it is configured to release the brake of the rotating tank without decelerating the rotation of the brushless motor, and then transmit to the rotating tank and the stirring body, and then drive the high-speed rotating rotating groove and the stirring body. [Problems to be Solved by the Invention] However, when the brushless motor is stopped, the structure of the mechanical brake cannot be simplified, and an electric electromagnetic brake is considered. However, the operation state of the above brushless motor is different under the washing operation or the dehydration operation, and the necessary period of deceleration may also occur at the end of each operation or on the way. Therefore, in the single-mode electromagnetic braking, there may be cases where the braking effect is low, the deceleration time is excessively long, or vibration or noise is generated. In particular, even if it is considered that the paper size is directly driven by a brushless motor, the Chinese National Standard (CNS) A4 standard (2 丨 OX297) --------- Id ----- -IT ------ ^ {Please «. Read the C notes on the back and then fill out this page) A7 B7 V. Method of Invention (2) The method of driving the rotating stirring body and the rotating tank to reduce vibration or noise However, if a mechanical brake is used, the k-motion and noise caused by the mechanical brake will be generated. Even if it is difficult to directly drive the vibration to try to make the vibration. The noise is reduced, but the vibration of the brake is not reduced. It does not help reduce the overall vibration and noise problems. Then, the idea of the direct drive method is followed. In the washing machine, a built-in transmission belt transmission mechanism and a clutch mechanism are provided in the rotation force transmission path from the brushless motor to the rotation tank and the stirring body for the rotation driving of the stirring body and the rotation groove. , Planetary gear transmission, reduction gear transmission mechanism, etc. In this configuration, the weight of the entire washing machine is increased, the size in the vertical direction is increased, and a considerable noise is generated during the operation of the reduction gear transmission mechanism. When the rotating stirrer and the rotating tank are directly driven by a brushless motor as a countermeasure, it is not necessary to use a belt transmission mechanism or a reduction gear transmission mechanism, which can reduce the weight of the entire washing machine and reduce the size in the vertical direction. In addition, the noise caused by the reduction gear can be eliminated. The present invention is conceived in view of the foregoing circumstances, and an object thereof is to provide a washing machine that can reduce the speed of a brushless motor during rotation. * The use of an electromagnetic brake can help simplify the structure compared with a mechanical braking method. We expect a washing machine that always maintains a good braking effect and reduces vibration or noise during braking. Means to solve the problem] The washing machine for patent application No. 1 has the following components: Read it first-read the back item and then fill out the standard paper for printing purple books by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs China g standard rate (CNS) M specifications (210X297 mm) · 5-A7 B7 V. Description of the invention (3) Please read-Read the back armor, then fill in the matter / This wood page drives the rotating rotary tank and agitator The brushless motor is composed of a converter having a DC power circuit and provided with a conversion element connected by a plurality of phase bridges. The driving means for driving the aforementioned brushless motor and the starting of the aforementioned brushless motor The regenerative braking means for regenerating electric power to the DC power supply circuit, and the discharge braking means for dissipating the aforementioned electric power through a discharge element connected between both ends of the input side of the main circuit of the inverter, and the brushless The motor coil is a short-circuit braking means for short-circuiting. * In this configuration, a regenerative braking means, which is an electromagnetic braking means, and a discharge braking means are compared with the short-circuit braking means. Means for using a mechanical brake, the configuration can be simplified more. Each of these braking methods causes different degrees of braking effect or vibration and noise according to the rotation speed of the motor at the time of deceleration. Although the washing machine needs to be decelerated at the end of the operation or in the middle of operation, these types of electromagnetic braking methods are provided. Compared with the use of a single electromagnetic braking method, the braking effect can be expected to improve, and it can also be expected. Reduction of vibration or noise during braking. The washing machine of the Central Standards Bureau of the Ministry of Standards and Welfare Consumer Cooperatives, India, applied for the patent application No. 2 of the washing machine, which is composed of a brushless motor for driving the rotating rotary tank and agitator by direct drive, and The power circuit is provided with a converter having conversion elements connected by a plurality of phase bridges, which is used to drive the brushless motor, and to drive the power of the brushless motor forward_DC power circuit regeneration Regenerative braking means, and a discharge braking device that is connected to both ends of the input side of the inverter main circuit while the DC power circuit and the inverter main circuit are cut off, so that the aforementioned electric power consumption is discharged. Means and short-circuit braking means for setting the aforementioned brushless motor coils as short-circuits · This paper standard is in accordance with the Chinese National Standard (CTNS) A4 specification (210 × 297 male *) -6- A7 B7 V. Description of the invention) Directly drive the rotating rotary tank and agitator to reduce vibration and noise. Next, there are re-k braking methods, which are electromagnetic braking methods, discharge braking methods, and short-circuit braking methods. Compared with the case of using mechanical braking methods, the structure can be simplified. These various braking methods cause different degrees of braking effect or vibration depending on the rotation speed of the motor when the speed is to be decelerated. Noise is generated. Although the period when the washing machine needs to be decelerated is at the end of operation or in the middle of operation, these numbers are available. Compared with a single electromagnetic braking method, this kind of electromagnetic braking method is more expected to improve the braking effect, and also can reduce the vibration or noise during braking, which can effectively reduce the vibration and noise of the entire washing machine. The washing machine in the scope of patent application No. 3 is characterized in that when the brushless motor is decelerated, it is composed of one or more braking means. Printed by the Ministry of Standards, Bureau of Standards and Consumers Cooperative (read the precautions on the back before filling out this page) Regenerative braking means regenerates the starting power of the brushless motor to the aforementioned DC power circuit. When it is relatively rampant, it can play a good braking effect, and it can cope with the urgency of braking. On the other hand, it is less suitable for braking at a low rotation speed. When the motor power becomes too large, it will change when it is exceeded. There is a risk of damage to the circuit components of the main circuit of the converter or the DC power supply circuit. $ The discharge braking means is connected to the input side of the inverter main circuit by cutting off the DC power circuit and the inverter main circuit. The discharge element between the terminals consumes the aforementioned power, and can exert a good braking effect when the motor rotates at a high speed, especially in regenerative braking. This paper applies the Chinese National Standard (CNS) Λ4 specification (210X297 mm) A7 __B7_ 5. Description of the invention (5) When the regenerative current is too large during the implementation of the method, it will often be switched to the discharge brake. However, in this case, the temperature rises. The short-circuit braking method is used continuously from the state where the horse's rotational speed is high, until the motor's rotational speed becomes a low rotational speed, and the braking effect is good, and the braking effect will not be over or under. However, when the speed of the motor is low, if the short-circuit brake is used suddenly, it will suddenly decelerate, and vibration or noise caused by vibration may occur. Therefore, in the invention of claim 3, because the brushless motor uses a combination of one or two braking means during deceleration, the braking effect is good, or the temperature can be prevented during deceleration, preventing The circuit components are broken, vibration and noise are reduced, and a good braking effect can be obtained. The invention according to item 4 of the scope of patent application is characterized in that the braking means is composed of one or two or more braking means to correspond to the operation content of the washing request. Printed by the Central Laboratories of the Ministry of Economic Affairs and the Ministry of Economic Affairs and Standards (read the precautions on the back and then fill out this page) In this structure, you can obtain a good braking effect on the operation content of the washing, and prevent the temperature during deceleration It can prevent the rise of circuit components or reduce the damage of the circuit components and reduce the vibration. Noise "The invention in the scope of patent application No. 5 is characterized in that when the regenerative braking means is performed, it will be set to first perform the short-circuit brake hand g" When performing the rotary brake Although the method has the advantage of high braking effect when the motor rotates at a high speed, when the regenerative current becomes too large, the DC element circuit or the circuit elements of the converter main circuit may be damaged. However, since the short-circuit braking method is implemented before the regenerative braking method is executed, the Chinese national standard (rNS) A4 specification (210X297 mm) is applied to this paper standard. A7 ____B7___ V. Description of the invention (6) Before the rotation braking method is implemented It can consume the starting power of the motor through the short circuit of the motor coil, and prevent the regenerative current from becoming too large when the regenerative braking means is executed, and prevent the circuit elements of the DC power circuit or the main circuit of the converter. Damage occurred. The invention in the sixth aspect of the patent application is characterized in that it is provided with a state in which the main circuit of the converter is connected to a DC power supply circuit and is open to the discharge element, and the main circuit of the converter is open-circuited from the DC power supply circuit and connected to the discharge element. When the state is used as the switching means, when the regenerative braking means is executed, the short-circuit braking means and the discharge braking means are executed in order, and when the short-circuit braking means is performed, the DC power circuit and the converter main The circuit is set to open circuit, and then the main circuit of the converter is connected to the discharge element. The bidding rate of the Ministry of Economics and the Consumer Affairs Co., Ltd. is printed by Fan Di (please read the precautions on the back before filling this page). When the regenerative braking method is implemented, although the braking effect is high when the motor rotates at a high speed, Advantages, but when the regenerative current becomes too large, the circuit elements of the converter main circuit or the DC power supply circuit may be damaged. However, before the regenerative braking means are executed, the short circuit braking means and the discharge braking means are sequentially executed to prevent damage to the circuit components. However, when the discharge braking method is performed, a potential difference between the main circuit of the converter and the DC power supply circuit caused by the electric power generated by the motor is generated. In this state, if the main circuit of the converter is switched to DC by switching means, When the power supply is open-circuited to the discharge element and when the main circuit of the converter is opened from the DC power supply circuit and connected to the discharge element, when the switching means performs the switching operation, there may be cases where the sparks occur and the contacts are fused. In this case, in the above configuration, the switching operation is performed when the short-circuit braking means that does not generate a potential difference between the DC power supply circuit and the main circuit of the converter is executed. This paper size is applicable to China Standard S (CNS) A4 (210X297). (Centi) -9 ^ · A7 _ B7, a consumer cooperative of the staff of the Central Bureau of Standards, Ministry of Economic Affairs and Economics 5. The description of the invention (7), so it can prevent the occurrence of spark explosion or contact melting during the switching operation. The invention of claim 7 is characterized in that the combination of the braking means in the washing operation and the dehydration operation is different. In this configuration, it is possible to obtain a good braking effect in response to each washing operation and dehydration operation, and to prevent temperature rise during deceleration, or to prevent damage to circuit elements, and reduce vibration and noise. The invention claimed in claim 8 is characterized in that when the brushless motor is decelerated, different combinations of braking means can be used depending on the urgency. Situations where deceleration is necessary can be divided into situations that are urgent and situations that are not so urgent. In the case of urgency, even if the temperature rises or generates vibration, it is better to use a combination of braking methods with high braking effect. However, in the case of no urgency, the braking effect can be slow, so it can be prevented. A combination of braking means with a temperature rise or vibration occurrence as a priority is preferred. Therefore, in the above structure, since the brushless motor can be decelerated in different combinations according to the presence of urgency when decelerating, it can be decelerated in a short time when there is tightness and sexuality, and in the absence of emergency It can effectively prevent temperature rise or vibration from occurring, and decelerate in a relatively slow manner. The invention in the ninth scope of the patent application is provided with: connecting the discharge element and a discharge conversion element that operates in response to the voltage induced by the motor of the inverter main circuit in series, and connecting the series circuit and the capacitor in parallel The discharge circuit that connects one end to the negative output terminal of the aforementioned DC power supply circuit, and the positive output terminal of the DC power supply circuit and the converter. This paper applies the Chinese national standard (CNS > A4 specification (2 丨 0X297) 10) (Please read the notes on the back before filling in this page)

|: Wood · / V, ιτ The last five, description of the invention (8) The positive input terminals of the main circuit are closed and the positive input terminals of the converter main circuit and the other end of the aforementioned discharge circuit are set In the first state of the open circuit, an open circuit is set between the positive output terminal of the k DC power circuit and the positive input terminal of the converter main circuit, and the positive input terminal of the converter main circuit and the other end of the discharge circuit are set The switching means is used to switch between the closed second state. It is characterized in that the switching means is switched to the second state when the discharge braking means is executed. When decelerating the motor at a high speed, to prevent vibration, it is better to turn off the motor first and set it to free rotation. In this case, a seduce voltage is generated in the motor. When the motor induces a large voltage, it will adversely affect the converter main circuit or DC power supply circuit. In this case, it is better to perform discharge braking. Therefore, in the above configuration, when the discharge braking means is executed, the switching means is switched to the second state. When switching to the second state, the discharge conversion element is turned ON / OFF in response to the voltage induced by the motor, and the discharge power is used to decelerate the motor's starting power. Printed by the Consumers ’Cooperative of the Central Bureau of Standards and Technology of the People ’s Republic of China. The ON / OFF operation of the discharge conversion element may cause a relatively high frequency and may cause noise. However, in the above configuration, the capacitor is connected in parallel to the discharge element and the discharge element. The series f circuit of the discharge conversion element can suppress the above-mentioned noise. Furthermore, it is assumed that even if the capacitor is fixedly connected between the two terminals of the input of the main circuit of the converter, it can help to suppress the occurrence of noise. However, in this case, a large charge and discharge current often flows through the capacitor. As a result, it is necessary to have more than the necessary capacitor capacity. This paper size is suitable for Chinese garden home samples (CNS > A4 specifications (2 丨 0X297) 漦 -11-Printed by the Central Standards Bureau of the Ministry of Economic Affairs, ordnance and consumer cooperatives " A7 _B7_ 5. Description of the invention (9) A large-capacity capacitor is used as a noise filter. At this point, in the above configuration, the switching means is used only when switching to the second state and state, in other words, only in electrical components. This capacitor is only used as a noise filter when it is used, so it does not need a large capacity. The invention in the scope of patent application No. 10 is characterized in that when the switching means is in the first state, The charging resistance element for charging is connected in series to the capacitor. When the switching means is in the first state, DC power is given from the DC power circuit to the main circuit of the converter, so that the motor responds to the running condition. In the first state, the switching means will charge the capacitor through the charging resistor to make the DC power supply circuit positive. The side output terminal and the discharge circuit become the same potential, so that when the operation of the switching means is switched to the second state, a spark will not explode or contact will not occur. The invention according to item 11 of the scope of patent application is characterized by the power supply container The diode is discharged in parallel to the DC power supply circuit side and the charging resistor is connected in parallel. When the switching means is the first state and the motor is rotating, if there is a power failure or the power plug is pulled out, the output voltage of the DC power supply circuit It will gradually decrease. At this time, because the charge is charged in the capacitor, the capacitor terminal voltage will relatively exceed the output voltage of the DC power circuit, the diode will be set to ON, and the capacitor's charge will be discharged to the DC power through this diode. At this time, the DC power supply circuit side will be approximately the same as the discharge circuit side --------- ^ ------ 1T ------ 蟓-V ((诮 先Read the notes on the back and fill in this page again.) This paper size is applicable to China's national standard (CNS > Μ said grid (210X297 mm) -12 · A7 _B7_ V. Description of invention (10) digits. In this state, even if you switch When the means is switched to the second state, there is no spark or contact melting. In this case, the switching means is switched to the first state at the specified dynamic voltage, and the status quo is maintained. Then, the specified action is performed. It is better to constitute a relay switch that is switched to the second state below the voltage (including power failure). It can help prevent sparks or contact dissolution in the relay switch during a power outage or when the power plug is disconnected. The invention in item 12 of the scope of patent application is characterized by staggering the ON time bands of the conversion elements at the timing when the phase current amplitudes of the brushless motors are uniform. When the phase current amplitudes of the brushless motors are the same, it may be the same as the ON timing of the switching elements corresponding to the phases of the inverter main circuit. At this time, a large spark current flows through the main circuit of the converter and generates noise. However, in the above-mentioned configuration, since the ON time bands of the conversion elements are shifted at the timing when the phase current amplitudes of the brushless motors are made uniform, it is possible to reduce the occurrence of a large spark current and contribute to the prevention of noise. After the Ministry of Central Standards Bureau, Beijia Consumers Cooperatives, the home of the Yin Jia (read the precautions on the back before filling out this page) [Invention Modes] The following is a description of the application of the present invention to automatic washing machines-implementation with reference to the drawings example. First, in the second figure showing the overall configuration of the fully automatic washing machine, in the outer case 1, the water receiving tank 2 is an outer tank for receiving dewatered water, and is elastically supported by an elastic suspension mechanism 3. The water receiving tank 2 is provided with a rotating tank 4 which can be used for both rotation and washing and dewatering. The size of this paper is in accordance with Chinese National Standard (CNS) A4 (210X297 mm) · 13-A7 B7 V. Description of the invention (") The inner part of the rotating tank 4 is equipped with a stirring body 5 that can rotate. The above rotating tank 4 series A groove body 4 a having a substantially cylindrical shape, an inner cylinder 4 b provided at the inside of the groove body 4 a to form a space for water passing, and a balance ring 4 c provided at the upper end of the groove body 4 a. When the rotary tank 4 is driven to rotate, the internal water will rise along the inner peripheral surface of the tank body 4 a by centrifugal force and pass through the dewatering hole portion (not shown) formed in the upper part of the tank body 4 a. Then, it is discharged into the water receiving tank 2. A drain port 6 is formed at the bottom of the water receiving tank 2, that is, the right end in the second figure, and the drain port 6 is provided with a drain valve 7 and is connected to the drain pipe 8. The drain valve 7 This valve is a so-called motor-type drain valve which is driven to open and close by a drain valve motor 9 (see FIG. 1) as a drain valve driving means described later. The drain valve motor 9 is, for example, a gear motor. Furthermore, the bottom of the water-receiving tank 2 is the shape of the left end in the second figure. The auxiliary drainage opening 6 a is not shown in the figure, and is connected to the drainage pipe 8 through a connecting pipe. The auxiliary drainage opening 6 a is provided when the rotary tank 4 is spin-dried. It is used for draining water which has been dehydrated from the upper part and discharged into the water receiving tank 2.

Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). Also, as shown in Figure 3, the machine base 10 is installed on the outer bottom of the water receiving tank 2. A shaft support cylindrical portion 11 is formed in the central portion of the mechanism unit base 10 so as to extend upward and downward. A hollow slotted shaft 12 capable of freely rotating is inserted and supported inside the shaft supporting cylindrical portion 11 through bearings 1 3 and 13. Inside the slotted shaft 12 are inserted through bearings 15 and 15 to support a stirring shaft 14 that can rotate freely. The upper and lower ends of the stirring shaft 14 protrude from the groove shaft 12. This paper scale is applicable to China National Standards (CNS) A4 specification (210X297) -14 · A7 — B7 V. Description of the invention (12) Furthermore, the upper end of the shaft support tube portion 1 1 of the machine base 10 It is fitted into the through-hole 2 a formed by the bottom center part of the water receiving tank 2 through the seal 16. The seal 16 is used to seal the upper end of the shaft support cylindrical portion 11 and the through-hole 2a of the water receiving groove 2 in a watertight manner. Further, a seal 16 is also provided between the outer peripheral surface of the grooved shaft 12 and the upper end portion of the shaft support cylindrical portion 11, so that the space therebetween is sealed to be watertight. A flange portion 12a is integrally formed on the upper end portion of the slot shaft 12. The rotary groove 4 is connected and fixed to the flange portion 1 2 a through a groove receiving plate 17. Thereby, the rotation groove 4 is mounted on the groove shaft 12 so as to rotate integrally. In addition, as shown in FIG. 2, the stirring body 5 is fitted to the upper end portion of the stirring shaft 14 and fixed with screws. Therefore, the stirring body 5 is mounted on the stirring shaft 14 so as to rotate integrally. Printed by the final award of the Ministry of Water Conservation Bureau, Beida Consumer Cooperative (please read the precautions on the back before filling this page), and also use the method shown in Figure 2 at the center of the inner bottom of the water receiving tank 2 A drainage cover 18 is installed between the ports 6. With this drain cover 18, a drain passage 1 9 is formed that communicates with the through hole 4d provided at the bottom of the rotary groove 4 to the drain opening 6. In this configuration, when the drain valve 7 is closed, water is supplied to the rotary groove 4. When it is inside, water will be stored in the rotating tank 4 and the above-mentioned drainage passage 19. Next, when the drain valve 7 is opened, the water in the rotary tank 4 is configured to be discharged through the through hole 4d, the drain path 19, the drain port 6, the drain valve 7, and the drain pipe 8. In addition, for example, an outer rotor-shaped brushless motor 2 0 is provided on the mechanism section base 10 of the outer bottom of the water receiving tank 2. Specifically, as shown by the third circle, the mechanism section base 10 The holder 21 of the brushless motor 20 is used in a concentric state with the stirring shaft 14 to use a stepped screw 22 to align the paper size with the Chinese national standard (CNS > A4 size (2 丨 OX297 mm)- 15- V. Description of the invention (13) Tightly fixed. The above-mentioned holder 21 is also composed of a laminated core 23, an upper bobbin 24, a lower bobbin 25, and a coil 2 in the manner shown in FIG. 6 (refer to Fig. 3). As shown in Fig. 4, the laminated core 2 3 is composed of three unit cores 23a having a substantially circular arc shape connected in a ring shape. The bobbins 24 and 25 are made of plastic, and are fitted to each tooth of the laminated core 23 from above and below. Then, the bobbins 2 4 and 2 5 are fitted. A coil 26 is wound on the outer circumference of the coil. As shown in the first figure, the coil 26 is composed of three-phase coils 26u, 26v, and 26w. On the one hand, the rotation of the brushless motor 20 The rotor 2 7 is installed in the manner shown in FIG. 3 at the lower end of the stirring shaft 14 so as to rotate integrally therewith. The rotor 2 7 is composed of the rotor engine block 28, and the rotor core 29, and The rotor magnet 30 is formed here. Here, the rotor engine block 28 is formed by, for example, die-casting an aluminum alloy, a shaft valley portion 2 8 a is formed at a central portion, and a magnet arrangement portion 2 8 b is formed at an outer peripheral portion. The lower end of the stirring shaft 14 is fitted and fixed in the shaft portion 28a. The magnet arrangement portion 28b has a horizontal portion and a vertical portion. The inner surface of the rotor is in contact with the rotor core 29, and the rotor core 29 is fixed to the horizontal portion with screws. Next, a plurality of rotor magnets 30 are attached to the inner surface of the rotor core 29 by, for example, a bonding method. Also, as shown in Figs. 3 and 5, a large number of ribs are protruded in a radial manner on a portion of the rotor engine block 28 on the periphery of the rotor engine 2 facing the coil 2 6 of the stator 21. Blade 2 8 c. Furthermore, in the central part of the rotor engine block 2 8 Surface, with radial projections around the axis of the paper. Applicable to China National Standards (CNS) A4 specifications (210X297 cm) -16- A7 B7 V. Description of the invention (14) Set a plurality of convex portions 2 8 d. Use These plural convex portions 2 8 d constitute the engaging portion. — As shown in FIG. 3, the outer peripheral portion of the engine block 1 0 of the mechanism portion is mounted as the inspection rotor 2 7 through the mounting tool 3 2. Rotor position detection means of the rotor magnet 30, for example, three holes IC 31a, 31b, 31c (only 31a is shown in the figure, and 31a, 31b, 31c is shown in the first figure ). The above-mentioned hole ICs 31a, 31b, and 31c are installed as shown in FIG. 8 (b) so as to stagger the position sensing signals Ha, Hb, and He by 120 degrees. Moreover, each of the hole ICs 31a, 31b, and 31c The positional relationship with the rotor 27 is set as a phase output 髙 level, which is synchronized with the induced voltage of each phase, and a low level digital signal. Next, a clutch 32 is provided at a lower end portion of the slot shaft 12. The clutch 3 2 has a configuration in which the spinner 2 7 is switched during dehydration, the stirring shaft 14 and the slot shaft 12 are integrated in an integrated rotation manner, and the slot shaft 12 does not follow the rotation shaft 2 7 and Stirring shaft 1 4-The function of rotating the body to release the linked form. The clutch 32 will be specifically described below. First, as shown in FIG. 6, the clutch 32 is constituted by a closing lever 3 3 formed in a rectangular frame shape, and a retainer 3 4 installed inside the closing lever 3 3. The retainer 34 is attached to the lower end portion of the slot shaft 12 and is installed to rotate integrally therewith. Specifically, as shown in Fig. 5, a pair of flat surface portions 12b, 12b are formed on the outer peripheral surface of the lower end portion of the grooved shaft 12. Then, the lower end of the grooved shaft 12 is formed in the central portion of the holder 34, and the paper is fitted to the standard of the Chinese paper (CNS > Λ4 specification (210X297 male *) -17- '~~' ( Read the precautions on the back before filling in this page. Mating hole 3 4 a. The inner surface of the fitting hole 3 4 a forms a flat surface against which the flat surfaces 12 b and 12 b of the grooved shaft 12 abut. Also, at the left end of the holder 3 4 in FIG. 5 A pivot support recess 3 4 b having a substantially semi-circular cross section is formed on the outer surface. In the case of the above configuration, the lower end portion of the slotted shaft 12 is inserted into the fitting hole 3 4 a of the fitting holder 3 4. The screws are bolted to fix the retainer 34 to the grooved shaft 12. Furthermore, a wave washer 3 5 is installed between the retainer 3 4 and the lower bearing 1 3. With the wave washer 3 5, the The lower bearing 1 3 is pressurized from the upper side. — On the other hand, as shown in FIG. 5 and FIG. 6, the closing lever 3 3 is fitted with a retainer 3 4 inside, The retainer 34 and the phase shaft 12 are configured to rotate integrally. The retainer 34 and the retainer 33 are formed on the inner surface side of the base end portion 3 3a (the end portion in FIG. 5) of the closing lever 33. The pivot support recess 3 3 b of 3 4 is fitted, and the pivot support projection 3 3 b (see FIG. 3) having a substantially semi-circular cross section. In this case, the pivot support projection 3 3 b and the pivot support recess 3 The fitting part of 4 b is used as a fulcrum, and the closing lever 3 3 is configured to rotate in the up-and-down direction. The closing lever 3 3 and the retainer 3 4 are as shown in FIG. 5 and A toggle spring 3 6 is provided as shown in FIG. 6 »With the spring force of the toggle spring 36, the closing lever 3 3 can be moved in a state of being kept in the upper rotation position (refer to FIG. 2). ), Or it is constructed in a state where the operation is completed by holding it at the lower rotation position (refer to FIG. 7). Next, the upper and lower portions of the front end portion 3 3 c of the closing lever 3 3 are protruded. The convex portions 3 3 d and 3 3 e. Also, the operated portion 3 3 f is protruded outside the front end portion 3 3 c of the closing lever 3 3. This paper scale applies the Chinese national standard (0 ^ > Six 4 specifications (2 丨 0 father 297 public shame) -18- {# 先 M-Read the back) V notes before filling out this page) Order A7 _B7 V. Description of the invention (16) On the one hand, the mechanism department in the static part As shown in FIG. 3 and FIG. 5, the lower surface of the center side portion of the machine base 10 forms a concave portion 37 corresponding to the convex k 3 3 d on the upper part of the closing lever 33. In this configuration, when the When the brake lever 33 is turned upward (refer to FIG. 2, this is during the washing operation), the convex portion 3 3d of the closing lever 33 is fitted into the concave portion 37 of the mechanism base 10. Thereby, the slotted shaft .12 and the rotary slot 4 will be fixed to the mechanism part base 1 of the stationary part. »Then, in the state where the concave portion 37 and the convex portion 3 3 d are fitted, only the slotted shaft 1 will be formed. 2 It is in a state of being released in unison with the rotator 2 7 茇 the stirring shaft 1 4. In this state, the stirring shaft 14 and the stirring body 5 are directly driven and rotated by a brushless motor 20. In addition, the rotator 27 and the stirring shaft 14 are originally connected by being integrally rotated. By the Ministry of Standards and Standards Bureau, the negative J-consumer cooperatives printed together (read the precautions on the back before filling in this page). In contrast, when the closing lever 3 3 is turned downward (refer to Figure 7, the In the case of dehydration operation), the convex portion 3 3 e of the lower portion of the closing lever 33 is engaged between the plurality of convex portions 28 d on the upper surface of the rotor engine block 28. As a result, the groove shaft 12 and the rotator 27 (and the stirring shaft 1 4) are interlocked with each other in an integrated manner. In this case, the slot shaft 12, the rotating slot 4, the stirring shaft 14, and the stirring body 5 are directly driven and rotated by a brushless motor. As a result, the brushless motor 20 is configured to drive the rotary stirring body 5 or the stirring body 5 and the rotator 4 in a direct drive manner. A control lever 38 capable of rotating the shaft support at the right end portion in the third drawing of the mechanism unit base 10 is shown in FIG. The front end side of the control lever 38 is divided into two shapes as shown in FIG. 6, in which the paper size on one side (right in FIG. 6) is applicable to the Chinese National Standard (CNS) A4 specification (2丨 OX297 Male 1)-19 * Central Standard of the Ministry of Economic Affairs, Bei Gong Consumer Cooperative, Printing and Printing Co., Ltd. A7 ___B7__ 5. Description of the Invention (17) The tip end forms a downward inclined surface 3 8 a, and on the other side (left in Figure 6) Side) The leading end portion forms an upwardly inclined surface 3 8 b. • In this case, when the control lever 38 is turned in one direction by the drain valve motor 9 driving the drain valve 7, the control lever 3 8 is turned downward. The inclined surface 3 8 a presses the operated part 3 3 f of the closing lever 3 3 of the clutch 3 2 downward, and rotates the closing lever 3 3 downward to form the state shown in FIG. 7. The state of FIG. 7 opens the drain valve 7 in response to the dehydration operation. On the other hand, in the state of FIG. 7, when the drain valve motor 9 is powered off, the control lever 38 is rotated in the reverse direction by the spring force of the return spring of the drain valve 7. The upward inclined surface 3 8 b causes the operated portion 3 3 f of the closing lever 33 to be pressed upward, and then the closing lever 33 is rotated upward to form the state shown in FIG. 2. The state shown in FIG. 2 closes the drain valve 7 in response to the washing operation. Next, the configuration of the electric appliance of the full automatic washing machine will be described with reference to FIG. In this first figure, both terminals of the AC power source 39 are connected to one input terminal connected to the rectifier circuit 41 via the reactor 40. Smoothing capacitors 4 2 a and 4 2 b are connected between the output terminals of the rectifier circuit 41. The DC power supply circuit 4 3 as a voltage doubler rectifier circuit is composed of the smoothing capacitors 4 2 a, 4 2 b and the rectifier circuit 41. The DC power supply circuit 43 outputs a DC voltage of, for example, 280V. A constant-voltage circuit 4 5 that supplies a DC-constant voltage such as a microcomputer 6 3 to be described later is connected between the positive-side power line 4 4 a and the negative-side power line 4 4 b of the output line of the DC power circuit 4. Next, the output terminal 4 4 A of the positive side power line 4 4 a of the DC power supply circuit 4 3 is based on the paper size used as a switching means, using the Chinese National Standard (CNS) A4 specification (210 × 297 male) -20-( Jing Xian M read the notes on the back of the book 苒 fill in this page) Ordering media · Printed by the Central Standards Bureau of the Ministry of Iodine and printed by the Beige Consumer Cooperatives A7 _B7 V. Description of the invention (18) NO terminal of the relay switch 4 6 (normal opeii: normally open Terminals) and COM terminals (common terminals) are connected to the DC g 4 7 a input terminal 4 7 A of the inverter main circuit 4 7, and the other end is connected to the other side of the inverter main circuit 4 7 Input terminal 4 7 B for DC line 4 7 b »The above-mentioned relay switch 4 6 is provided with the above-mentioned NO terminal, COM terminal and NC terminal (normal close terminal), forming a relay driving circuit for switching operation, and relay driving The circuit 4 6 a is to close the COM terminal and the NO terminal (set to the first state) when the relay coil (not shown) is energized, and when the power is off, the COM terminal and the NC terminal are automatically switched off. Ground closed (set to 2nd state) Type constituted. In addition, the relay drive circuit 4 6 a is set to maintain the first state until the output voltage of the DC power supply circuit 4 3 becomes 5 Ό V or lower. In the above-mentioned first state, the positive-side output terminal 4 4 A of the DC power supply circuit 4 3 and the positive-side input terminal 4 7 A of the inverter main circuit 4 7 are closed, and the The positive-side input terminal 4 7 A is open-circuited with the other end of the discharge circuit 48 described later. In the second state, the positive-side output terminal 4 4 A of the DC power supply circuit 4 3 is connected to the main converter. The positive input terminals 47 A of the circuit 47 are made open, and the positive input terminals 47 A of the inverter circuit 47 and the other end of the discharge circuit 48 are closed. Connect the discharge switch between the NC terminal of the aforementioned relay switch 46 and the negative input terminal 4 7 B of the inverter main circuit 4 7. The discharge is written as a discharge means. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297). ) -21---------- r ^ ------ IT ---- ^ --- Φ / »s \. · (Please read the precautions on the back before filling in this page ) A7 _ B7 _ V. Description of the invention (19) Road 48. The discharge circuit 48 is composed of a discharge resistance element 49, which is a discharge element, and a discharge conversion element 50, which are connected in series. Next, a series circuit of the discharge element 49 and the discharge conversion element 50, and a capacitor are connected in series. 5 1 (equivalent to the capacitor in item 8 of the patent application) is connected in parallel. The control terminal (gate) of the conversion element 50 is connected to a driving circuit 52 composed of, for example, a photocoupler. Furthermore, a charging resistor 5 3 connected in series with the capacitor 51 is connected between the positive-side input terminal 4 7 A of the inverter main circuit 47 and the discharge circuit 48, and the charging resistor 5 3 is connected in parallel. Connected to the diode 5 4 (equivalent to the diode in item 10 of the scope of patent application). Furthermore, between the output terminal 4 4 A of the DC power supply circuit 4 3 and the input terminal 4? A of the inverter main circuit 47, the COM terminal and the NO terminal of the relay switch 46 and the regeneration diode 5 5 are connected. Connected in parallel. Further, a voltage dividing circuit 56 is provided as a voltage detection means for detecting the voltage of the DC line 47a on one side of the inverter main circuit 47. The voltage detected by the divided voltage detection circuit 56 is supplied to a microcomputer 63 described later. Printed by the Central Standards Bureau of the Ministry of Economic Affairs and Ministry of Economic Affairs and Consumer Affairs Cooperatives (please read the precautions on the back before filling in this tile). The converter main circuit 47 is a conversion made by a 3-phase resistance bridge such as an IGBT. The elements 5 7 a to 5 7 f are composed of free-wheeling f pole bodies 5 8 a to 5 8 f which are connected in parallel to these conversion elements 5 7 a to 5 7 f, respectively. Next, the output terminals 59u, 59v, and 59w of the inverter main circuit 47 are connected to the three-phase coils 26u, 26v, and 26w of the brushless Mazin 20. In addition, the control terminals (gates) of the conversion elements 5 7 a to 5 7 f of the inverter main circuit 47 are connected to the example. This paper size applies the Chinese national standard (CNS > Λ4 specification (210X297)) -22- Printed by the Central Standard Bureau of the Ministry of Military Industries and Consumer Cooperatives A7 £ 7_ V. Description of the invention (20) A driving circuit 60 such as a photocoupler. The driving circuit 60 is controlled by a signal from the PWM circuit 61 , And then ON / OFF control of each of the above-mentioned conversion elements 5 7 a to 5 7 f '• consists of these DC power supply circuits 4 3, converter main circuit 4 7, drive circuit 6 0 and PWM circuit 6 1 The joy means 6 2 is constituted. The above-mentioned PWM circuit 61 is provided with a means for generating a triangular waveform signal of a specified frequency internally, and forms a sine wave based on the energization signals Du, Dv, and Dw given from the microcomputer 63 described below. The coil current is formed into driving signals Vup, Vun, Vvp, Vvn, Vwp, Vwn, and then output to the driving circuit 60. Moreover, the driving signals Vup, Vun are shown in FIG. 8 (d) 0. Fe up to 20 holes IC 31a, 31b, 3 1 c output position The known signals Ha, Hb, and He are configured to be supplied to the microcomputer 63. Furthermore, the microcomputer 63 is driven and controlled to open and close the drain valve motor 9 of the drain valve 7 and feed water to the rotary tank 4. The water supply valve 6 4 is configured. The microcomputer 6 3 receives a power failure detection signal for detecting a power failure based on the voltage of the AC power source 39 and a water level sensor 6 6 for detecting the rotation groove 4. The water level detection signal of the internal water level comes from the lid switch 6 8 which detects the opening and closing state of the lid 6 7 (refer to FIG. 2) provided in the upper part of the outer box 1, and is provided by an open / close detection signal provided in an unillustrated state. The microcomputer 6 3 series has the function of driving control means for controlling the brushless motor 20, and the function of controlling the entire operation of the fully automatic washing machine.闰 Read the precautions on the back and fill in this page again.) The size of this paper applies the Chinese National Standard (CNS) Λ4 specification (2 丨 0 X 297 mm) -23- A7 __B7_ V. Description of the invention (21) and for motor 2 0 generated The function of the magnetic brake, and the control program that provides these functions and the information necessary for the execution of the program are recorded in the internal ROM. Then, in this case, the microcomputer 63 is used to generate regenerative braking and discharge. In addition to braking and short-circuit braking, flexible braking can be generated to control the converter elements 5 7 a to 57 f of the converter main circuit 47, the discharge conversion element 50, and the relay switch 46. Next, the actions of each brake will be described. Regenerative braking: Regenerative braking uses ON / OFF control switching elements in the energized mode where the electric current phase flowing into each phase is changed to the retarded phase generated by the 26u, 26v, and 26w coils of the motor. 5 7 a to 5 7 f, the generated motor energy will be regenerated and braked to the DC power circuit 4 3 side via the regeneration diode 5 5. Therefore, the regenerative braking means is constituted by the ON / OFF control function of the switching element of the microcomputer 6 3 and the diode 5 5 for regeneration. (Fill in this page again.) The characteristic of this regenerative braking is that it will show a good braking effect when the rotation speed of the motor 20 is high, and it can respond to the urgency of braking. However, on the contrary, braking at a low rotation speed is due to The lower the regenerative power, the less suitable it is to use regenerative braking. When the motor starting power becomes too large to exceed, the circuit components of the inverter main circuit 47 or the DC power supply circuit 4 3 will be damaged. Discharge braking: The discharge braking system uses the energized mode in which the phase of the induced voltage generated in the coils 2 6 u, 2 6 v, and 2 6 w of the motor 20 is induced by the current flowing in each phase into the delayed phase. ON / OFF control conversion element 5 7 a ~ 5 7 f, and the relay switch 4 6 applies the Chinese national standard (CNS > Λ4 specification (2 丨 0 X 297 cm)} toward the paper standard Printed by the Bureau of Standards and Consumer Cooperatives A7 B7 V. Description of the invention (22) The COM terminal and NC terminal are switched off. When the voltage detected by the voltage divider circuit 5 6 becomes the upper limit specified voltage (DC line 4 7 a is displayed) When the voltage becomes > 4 0 0 or more), the discharge conversion element 50 is set to ON, and then the brake generated by the motor can be consumed by the discharge resistor 49. In this case, when the aforementioned detection When the voltage is lower than the specified lower limit voltage (the voltage when the DC line 4 7 a is changed to 3 5 0 V), the discharge conversion element 50 is turned OFF. Therefore, the conversion element 5 of the microcomputer 6 3 is used. 7 a ~ 5 7 f and ON / OFF control function of the discharge conversion element 50, The relay switch 46, the voltage dividing circuit 56, and the discharge circuit 48 constitute a discharge braking means. In other words, when the regenerative braking means is executed, the discharge braking means is operated in response to the voltage induced by the motor 20. The characteristic of this discharge braking is that it will exert a good braking effect when the rotation speed of the motor 20 is high, especially when the regenerative current is too large when the regenerative braking means is executed, it is often switched to this discharge braking. However, in this case The lower part will be accompanied by an increase in temperature. Short-circuit braking: By simultaneously turning on and controlling the three conversion elements 57b, 57d, and 57f of the converter elements of the converter main circuit 47, the coils 26u, 26v, and 26w of the motor 20 are turned on simultaneously. The brakes are all decelerated in a short-circuit state. Therefore, the ON / OFF control function of the microcomputer 63's conversion elements 5 7 a to 5 7 f constitutes a short-circuit braking means. The short-circuit braking is characterized by the The rotation speed is from the high rotation speed state to the low rotation speed state. When the short-circuit braking is continuously used, the braking effect will be good, and the braking effect will not be too small or excessive. This paper size is in accordance with Chinese National Standard (CNS) Λ4 specification (210X297 mm) ^ 25- {«Read the precautions on the back before filling in this page) Threading has been confirmed by the member of the Central Standards Bureau ΗConsumer Cooperative ¾ A7 B7 V. Description of the invention (23) Large. However, when the short-circuit braking is suddenly applied at a low rotational speed of the motor 20, the situation of emergency deceleration, vibration, or noise caused by vibration one will occur. Soft braking : Braking to reduce the input load ratio to the output voltage of the DC power supply circuit 4 3 applied to the motor 20 until it slowly drops to zero. Therefore, the soft braking means is constituted by the ON / OFF control function of the conversion elements 5 7 a to 5 7 f of the microcomputer 63. This soft braking is characterized by a gentle braking effect and low vibration or noise, especially for deceleration when the rotation speed of the motor 20 is low. In addition, in addition to the braking methods described above, there are no braking-related issues. It is used as the initial idling means of braking means, and the common idling means * and position determination means. The initial idling method is to use the microcomputer 6 3 to turn all the rotating elements 5 7 a to 5 7 f OFF and then make the motor 20 idling. At this time, based on the position sensing signals Ha from the void ICs 31a, 31b, 31c,

Hb, He to detect the rotation speed of the motor 20. Normally, the idling means is made by using the microcomputer 63 to turn all the rotating elements 5 7 a to 5 7 f to OFF and leaving the motor 20 idling. However, the rotation speed is not detected at this time. The position determining means is a means for turning the motor 20 to rotate at a very slow speed by turning ON / OFF to control the switching elements 5 7 a to 5 7 f. Since the position determining means is shown in FIG. 11 It is executed in a very short time (0.5 seconds), so it must be assumed that the position of the motor 20 is at rest. This paper size applies to China National Standards Complete (CNS) A4 specification (210X297 mm) -26- {Please read the notes on the back before filling this page) d. Ordering line printed by the Ministry of Economic Affairs Central Standards Bureau and printed by the consumer cooperative A7 ___B7_ V. Description of the Invention (24) Next, the microcomputer 63 will combine the braking methods described above to decelerate when decelerating. As for the braking combination mode, as shown in Figure 9, there is a "weak braking" mode. And "normal braking" mode, "forced braking" mode, "emergency braking" mode, and "washing braking" mode. The “washing brake” mode is used for washing operation, and is performed after forward rotation and reverse rotation as shown in FIG. 11. The “washing brake” mode is shown in FIG. 9. Soft braking is performed at a specified time (from a specified load ratio to zero), short-circuit braking is performed until it stops, and then position determination is performed at a specified time (0.5 seconds). This "washing brake" mode is set to be used during washing operation. "Weak brake j mode is used when one of the following conditions is met: when the dehydration time for the dehydration operation is set to officially end, the power cut-off switch in the switch 6 9 or the temporary stop switch is operated, the cover 6 7 When it is opened (this is detected by the lid switch 68), it is also used for 40 ms (thousandths of a second) when the initial idling method (including rotation speed detection) is performed and the rotation speed of the motor 2 is less than 3 0 At 0 rpm. The "weak braking" mode is set to execute the normal idling method until 400 ms has elapsed after the execution of the above-mentioned initial idling method, and then softness is performed at a specified time (from the specified load ratio to zero). Then, the short-circuit braking means is executed until the rotation is stopped. The "normal braking" mode is used when the dehydration time of the set dehydration operation is over and it is officially ended. The initial idle running method is used when the rotation speed of the motor 20 is more than 300 rpm. "This paper rule Αΐϊ 用 国 ϋ- Xin (CNS) Λ4 specification (210X297 mm) -27-I-^ 1 III —. I order — II line v / fv i, (please read the note on the back before filling this page) Standard Bureau Shellfish Consumer Cooperatives India A7 B7 V. Description of the Invention (25) Also, "Ordinary braking j. Mode is used when any of the following conditions are met: the power cut-off switch in the switch 6 9 or temporarily stopped When the switch is operated, the cover 6 7 is opened C (this is detected by the cover switch 6 8), and it is also used for the initial idling method when the rotation speed of the motor 20 is more than 300 rpm ~ less than 6 At 0 0 rpm. This "normal braking" mode is set to 40 ms to perform the initial idling (including rotation speed detection), and then short-circuit braking is performed until the motor 20 stops. "Forced action" mode is used under any of the following conditions, when the power cut-off switch or temporary stop switch in the operation switch 6 9 is operated, or when the cover 6 7 is opened (this is by the cover switch 6 8)), and is also used when the rotation speed of the motor 20 during the initial idling method is from 600 rpm to less than 1,000 rpm. In addition, the rotation speed of the motor 20 during dehydration operation is controlled to a maximum of 900 r.p.m. However, under normal circumstances, it does not exceed (greater than) 9 0 r.p.m. The "forced action" mode is set to perform the short-circuit braking method after the initial idling operation is performed at 400 ms, and then the regenerative braking method including the discharge braking method is executed until the rotation speed is lower than 480 rpm *. The short-circuit braking method is executed until the rotation speed becomes zero (the rotation is stopped). 1. The "emergency braking" mode is adopted in the event of a power outage during dehydration operation, regardless of the motor rotation speed at that time. The "emergency braking" mode is set to perform short-circuit braking at 400 ms after the execution of the initial idling method. Means, then, until the rotation speed is lower than 100 rpm, the Chinese paper standard (CNS) A4 specification (210X297 mm) applicable to this paper size is executed. -28- ------ Order ------ Line ^-.. ./IV (please read the precautions on the back before filling this page) Printed by the Consumer Affairs Cooperative of the Central Bureau of the Ministry of Consumers, A7 B7 V. Description of the invention (26) Implementation of the discharge braking method Regenerative braking is performed, and short-circuit braking is performed until the rotation speed becomes zero (rotation stop). The function of the k configuration and the operation of the microcomputer 63 will be described at once. First, the motor 20 is driven to rotate in order to drive the agitating body 5 or the rotary rotary tank 4 during the washing operation or the dehydration operation. The microcomputer 6 3 is based on the position sensing signals Ha, Hb,

He forms an energization signal Du, Dv, Dw displayed in 8-bit data in order to obtain a specified rotation speed (refer to FIG. 8 (c)) »The PWM circuit 61 is based on the energization signals Du, Dv, Dw forms driving signals Vup, Vun, Vvp, Vvn, Vwp, Vwn (where Vup, Vun are shown in FIG. 8 (d)), and then outputs. Here, for example, the output voltage of the U-phase is set as shown in FIG. 8 (e), and the U-phase coil current is set as a sine wave as shown in FIG. 8 (f). Others like V-phase and W-phase are the same as above and then energize the sine wave current. However, each of the energization signals Du, Dv, and Dw is formed by staggering the electrical angle by 1 2 1 degrees. And the microcomputer 6 3 not only outputs the above-mentioned energization signals Du, Dv, Dw, but also provides output permission. The stop signal Do is given to the PWM circuit 61. When the signal Do is "0", the drive signals Vup, Vun, Vvp 'Vvn, Vwp, Vwn are set to low levels, and the conversion elements 5 7 a to 5 7 f Quanping is set to OFF, and the motor 20 is powered off. Therefore, when the so-called cleaning agent washing operation or the rubbing washing operation is performed, the stirring body 5 should be rotated forward and reverse, and the microcomputer 6 3 is repeatedly performed in the manner shown in FIG. 11 to make the motor 2 0 After rotating in the positive direction, the Chinese national standard (CNS) Λ4 specification (210X297 mm) is applied to this paper scale. -29- --------- :, i ------ order ---- --Line •,. (-. (V, (please read the note f on the back before filling this page). &Quot; • Ministry Central Standards Bureau, Shellfish Consumer Cooperative Press A7 _B7_ V. Description of Invention (27) 淸Deceleration in the wash brake mode, decelerating in the reverse direction, and then decelerate in the wash brake mode. • In this case, as in the previous description, in the brake wash mode, the soft braking means is at the specified time (from the specified load ratio to zero). ) Is executed, and then short-circuit braking means is executed until the rotation is stopped, and then the position determining means is executed at a specified time (0.5 seconds). This "washing brake" mode is used during washing operation. When a deceleration is required If the short-circuit braking method is suddenly applied to the stirring body 5, the rapid deceleration and water-repellent sound will occur. It is large, so in this embodiment, the short-circuit braking method is executed after the soft braking method is executed, so that a large water repellent sound can be prevented. Secondly, during the dehydration operation, the microcomputer 6 3 rotates the rotary groove 4 and the motor 2 0 rotation, but when the dehydration operation is completed and the dehydration time is to be officially ended, deceleration will also be performed. When the rotation speed of the motor 20 is less than 300 rpm, this situation will be in the initial stage. When the idling method is executed, it is detected. When using the "weak braking" mode including the initial idling method to decelerate in this "weak braking" mode, the switching element 5 7 a ~ 5 will be executed during execution. After the initial idling means with all 7 f set to OFF, the normal idling means with all the switching elements 5 7 a to 5 7 f set to OFF will continue to be executed, and the microcomputer 6 3 will The relay drive circuit 46a is de-energized, and the COM terminal and the NC terminal i of the relay switch 46 are switched to be closed to stop the DC power supply to the inverter main circuit 47. Then, the conversion is performed. The soft brake means whose ON load ratio of elements 5 7 a to 5 7 f is slowly set to zero. In this case, the motor rotation speed before the execution of the soft brake means is experimentally predicted to become a certain rotation speed. This paper scale is applicable. China National Standards (CNS) A4 Specification (210X 297mm) -30-(诮 Please read the notes on the back before filling this page) ίΫ yi The Central Bureau of Standards, the Ministry of Scripture, and the Consumer Cooperatives Printed A7 _B7_ 5 The invention explains (28) degrees. Therefore, in this soft braking method, the ON load ratio which is experimentally determined is gradually turned to zero. Then, when the ON load ratio becomes zero, ih is stopped to execute the soft braking means, and short-circuit braking means in which 5 7 b, 5 7 d, and 5 7 f of the conversion elements 5 7 a to 5 7 f are set to ON are executed. . At this time, the rotation speed of the motor 20 will fall to about 100 r.p.m. Therefore, even if the short-circuit braking method is performed, a sudden reduction in the rotation speed does not occur, and the braking is smooth without the occurrence of vibration and noise. And, the "weak braking" mode is used as described above when one of the following conditions is met: when the power off switch or temporary stop switch is operated during dehydration operation, when the cover 67 is opened, and it is also used for the initial idle run When the rotation speed of the motor 20 is less than 300 rpm during the execution of the means, vibration and noise will not occur in this case as well. Figure 13 shows how the rotation speed changes when decelerating in this "weak braking" mode. In addition, when the dehydration operation is officially ended at a motor rotation speed of 300 r.p.m or more, the aforementioned "normal braking" mode is used to reduce the speed. In this case, the short-circuit braking means is executed after the initial idling means at 40 ms. When this execution is completed, the relay drive circuit 4 6 a will switch off the group coils and switch between the COM terminal and the NC terminal of the relay switch 4 6 * and stop until the inverter main circuit 4 7 DC power supply. This short-circuit movement is executed until the rotation stops, and it stops in about 20 seconds. In this case, since the short-circuit braking means is performed from a state where the rotation speed of the motor 20 is high, although it cannot be said that the braking effect is high, vibration and noise rarely occur. When the dehydration operation like this is to be officially ended, since there is no urgency in this paper standard, the Chinese national kneading rate (rNS) A4 specification (210X297) is published -31-(Jing first read the precautions on the back and fill in this page }, ιτ Printed A7 _B7, Shellfish Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention (29) Braking, so that vibration can be prioritized. Deceleration can be prevented before the occurrence of noise. And, this "normal braking" mode is based on Use when one of the following conditions is met: • When the power cut-off switch or temporary stop switch is operated during dehydration k rotation, the cover 6 7 is opened * and it is also used for a rotation speed of 3 0 0 rpm or more to less than 6 0 0 rpm. Although there is a comparative urgency in this case, because the rotation speed is limited to less than 600 rpm * in this "normal braking" mode, it does not take much time until the rotation speed of the motor 20 is stopped, Therefore, it can fully respond to the urgency of the situation. Therefore, the occurrence of vibration and noise can also be reduced in this case. Secondly, when the power off switch or the temporary stop switch is operated during dehydration operation, the cover 6 7 is hit. If any of the above conditions is met, and the rotation speed is more than 600 rpm ~ less than 100 rpm, then the "forced motion" mode is used. In this case, it is relatively urgent. Assume that the " When decelerating in the "normal braking" mode, due to the high rotation speed, it takes time until the rotation stops. Therefore, the "forced j mode" is adopted. This "forced" mode is created after the initial idling method is executed, at 4 0 0 ms The short-circuit braking method is executed. In this execution, the relay driving circuit 46a will power off the relay coil, and then switch the COM terminal and NC terminal of the relay switch 46 to the closed state. In other words, the regenerative braking method is executed. Before, when the DC power supply 4 3 slave converter main circuit 47 was set to open circuit, and the discharge circuit 4 8 (that is, connected to the discharge resistor 49) was connected, the regenerative braking means was performed. The regenerative braking means was made as described above. Generally, relative to the phase of the induced voltage generated by the coils 26u, 26v, and 26w of the motor 20, the Chinese national standard (CNS) A4 specification (210X297) is applied to this paper scale. &gt; -32- ---------- J ------ 1T --------- ^ •-Ί (诮 Read the precautions on the back before filling this page) A7 _B7______ V. Description of the invention (3〇) η First § Back ίτ-Notes and then n (J This page is designed to set the current phase of each phase to the energized mode of the delayed phase to turn on / off the control conversion element 5 7 a to 5 7 f, and then the motor energy is regenerated toward the DC power circuit 4 3 side through the regeneration diode 5 5. In this case, the higher the rotation speed of the motor 20 and the higher the starting power of the motor 20, the more induced a voltage of about 600 V is generated. When the voltage induced by the motor appearing on the DC line 4 7 a exceeds 4 0 V, the microcomputer 6 3 detects the situation using the voltage dividing circuit 5 6 and turns on the discharge conversion element 50 through the driving circuit 5 6. . Therefore, although the motor energy is consumed by the discharge resistor 49, the voltage of the DC line 47a will decrease. When the voltage drops below 3 50V, the discharge conversion element 50 will be turned off. Since the motor 20 is still rotating, the discharge conversion element 50 ON / OFF is repeatedly performed while the condition that the motor induced voltage exceeds 400 V continues. The Central Support Department of the Department of Economics and Economics of the Ministry of Economic Affairs and the Consumers' Bamboo Printing Stand, so when the motor induces a voltage that does not exceed 4 0 0 V, the motor energy will pass through the regeneration diode 5 5 toward the DC power supply circuit 4 3 sides are regenerated. That is, it becomes a means for performing regenerative braking. This regenerative braking method is executed until the motor rotation speed is as low as 480 r.p.m. In other words, when it is as low as 480 rpm, the ON / OFF mode of the switching elements 5 7 a to 5 7 f in the discharge braking means and the regenerative braking means will be switched to the switching elements 5 7 a to 5 7 f. The three conversion elements 57b, 57d, and 57f on the lower side are simultaneously set to the copy type of (^), and a short-circuit braking means is executed. This short-circuit braking means is executed until the rotation is stopped. In such a "forced action" mode, When the rotation speed of the motor 20 is 髙 and there is a comparative urgency, it can obtain a higher braking effect than the "normal braking" mode and shorten the braking time. This paper standard applies to China's national standard (CNS) Λ4 Specifications (210X297 mm) -33 · Printed by the Central Bureau of Standards of the Ministry of Industry and Engineering Co., Ltd. Printed Poly A7 B7 V. Description of the Invention (31) Second, when a power outage occurs during dehydration operation, the rotation of the motor 20 at that time is ignored For the speed, the "emergency braking" mode is used. As described above, the "emergency braking" mode k performs the regenerative braking means including the discharge braking means until the rotation speed is as low as 100 rpm, and the above-mentioned "forced braking" The mode is different. At this time, when the regenerative braking method is executed until the rotation speed reaches 100 rpm, the braking force will be stronger and the braking time will be shortened to respond to the urgency of braking. Figure 12 shows that the dehydration operation is For example, when the motor rotates at a speed of 600 rpm or more and less than 100 rpm, the change of the rotation speed (braking-related status) in each braking mode when decelerated is shown in the figure. It will be shortened according to the sequence of "emergency braking" mode, "forced braking" mode, and "normal braking" mode./-In terms of the aforementioned "forced braking" mode and "emergency braking" mode, regenerative braking means will be used. Prior to execution, short-circuit braking is performed first, thereby preventing damage to the circuit components of the DC power supply circuit 43 or the inverter main circuit 47. In other words, when the rotary braking means is executed • Although the motor rotation speed is high It has the advantage of high braking effect, but the regenerative current will become too large, which may damage the circuit components of the DC power circuit 4 3 or the inverter main circuit 4 7 However, in this embodiment, the short-circuit braking means is executed before the regenerative braking means is executed. Therefore, before the rotary braking means is executed, the motor coil can be short-circuited to consume the energy of the motor. The situation that the regenerative current becomes too large can be prevented beforehand, which can prevent the circuit components from being damaged. In addition, the discharge braking method is based on the paper size of the converter's main power after the motor power is generated. The national paper standard of China (CNS &gt; A4 specifications (210X297) (Public Note) -34- Please «. Read the back & <-Note before filling out this page j Thread A7 B7 V. Description of the invention (32) When the potential on the 7 side of the circuit 4 becomes high relative to the DC power supply circuit However, during the execution period of the discharge braking, if the relay switch 46 is connected from the inverter main circuit 47 to the DC power supply circuit 43 and the discharge resistor 49 is set to the first state of the open circuit, When switching to set the inverter main circuit 4 7 to the DC power supply circuit 4 3 to be open and connected to the second state of the discharge resistor 49, a spark or connection will occur in the relay switch 4 6 The solution. In this case, since the switching operation is performed when the short-circuit braking means that does not generate a potential difference between the DC power supply circuit 43 and the inverter main circuit 47 is performed in this case, it is possible to prevent sparks or contacts during the switching operation. Melting occurs. Also, in the "forced action" mode and "emergency braking" mode, although the discharge braking means is executed after the discharge conversion element 50 is turned ON, the conversion element 50 becomes less than 4 0 V when the motor induced voltage Until now, it will be turned on / off at a higher frequency. Although noise may be generated by this conversion, in this embodiment, the capacitor 51 is connected in parallel to the series circuit of the discharge resistance element 49 and the discharge conversion element 50, so that the occurrence of the noise can be suppressed. Printed by the Central Standards Bureau of the Ministry of Economic Affairs of the βΗConsumer Cooperative (please read the precautions on the back before filling this page), and even if it is assumed that the capacitor 50 is fixedly connected to the input two terminals 4 7 A of the main circuit 47 of the converter, Between 4 and 7 B can also help to suppress the occurrence of noise, but in this case, a large charge and discharge current usually flows through the capacitor 50, so a capacitor with a capacitance larger than the necessary capacitor capacity is used as noise filtering. Becomes necessary. At this point, in this embodiment, only when the changeover switch 46 is set to the second state, in other words, only when the discharge resistor 49 is used, the capacitor 51 is used as a noise filter. National Standard (CNS) Λ4 Specification (2 丨 0X297); -35- Printed by the Central Bureau of Standards, Shellfish Consumer Cooperatives 5Ϊ A7 B7 V. Description of Invention (33) Use does not need to make a large capacity. Also, When the relay switch 46 is in the first state (the COM terminal and the NO terminal are closed) during the washing operation or the dehydration operation, the DC power is supplied from the DC power circuit 4 3 to the inverter main circuit 47. The motor 20 is rotating in response to the operating conditions. * When the operation is to be decelerated at the end of operation, the relay switch 4 6 will switch to the second state (the COM terminal and the NC terminal are closed). In this case, the relay switch 4 6 In the first state, the capacitor 51 is charged through the charging resistor 5 3, so that the positive output terminal 4 4 A of the DC power supply circuit 4 3 and the discharge circuit 4 8 become the same potential. Therefore, when the relay switch 4 6 When switching to the second state, Sparks may occur or contact may occur. Relay switch 46 is in the first state mentioned above and motor 20 is rotating. When it encounters an example, such as when power is cut off or the power plug is pulled out, it will start with "Emergency braking" mode to decelerate. Then, in this case, the output voltage of the DC power supply circuit 4 3 will gradually decrease. At this time, because the charge is charged in the capacitor 51, the voltage at the terminal of the capacitor 51 is relatively higher than the DC power supply circuit 4. In the output house of 3, the diode 54 is set to ON, and the charge of the capacitor 51 is discharged to the DC power supply circuit 4 3 through the diode 5 4. At this time, the DC power supply circuit 4 3 side and the discharge circuit 4 8 (The side is approximately the same potential. &Lt; * In this state, during the deceleration in the "emergency braking" mode, even if the relay switch 46 is switched to the second state, no sparks will occur or the contacts will not melt. In this case, the relay switch 46 is in the specified action as in this embodiment. The paper size applies the Chinese standard (CNS) Λ4 specification (210X297). -36- (秭 Please read the precautions on the back before filling in this page -A . Order A7 ^ ____ B7_ V. Description of the invention (M) (谙 Please read the precautions on the back before filling in this page) When the voltage (above 50V) is automatically changed to the second state, it will be structured 'even when it is decelerating and during a power failure When this switching is performed when the power plug is unplugged, it can also help prevent sparks from occurring on the relay switch 46 or contact melting. Here, the energization of the phases in the energization signals Du, Dv, and Dw. When the amplitudes of the signals are the same (when the data is the same), the electrical angle is, for example, shifted by 1 degree. In other words, for the energizing signal Du, the phase of the energizing signal Dv will have an electrical angle of 1 2 1 degrees. For the energization signal Du, the phase of the energization signal Dw will be shifted in an electrical angle of 1 2 1 degrees. This will be described in detail by taking, for example, U-phase and W-phase. Fig. 14 shows the U-phase and V-phase energization signals Du and Dv in detail. These systems show the electrical angle data divided by 1 60 electrical angles into 3 6 0 divisions and the numbers in the "2 5 6" phase. The sine wave data represented by 値 data, the amplitude of the coil current of the sine waveform corresponding to the phase is determined according to the size of the data. The amplitude of the coil current (current 値) is based on the current of the coil that is energized to its phase. The conversion element (any of 5 7 a to 5 7 f) is determined by the time width of energization. In addition, electrical angle data is used to determine the timing of energization. The U-phase and U-phase are printed by β Industrial Consumption Hezhu Co., Ltd. of the Ministry of Economic Affairs and Standards Bureau. The phase of the energized signal of V-phase is usually set to 120 °. The waveform in this case is shown in Figure 17 as a reference example. The U-phase and V-phase coil currents have the same amplitude (the current waveform crosses) (the P portion of Figure 8 (f)) occurs in the U-phase 'V-phase as shown in Figure 17 The energizing signal Du 'Dv forms a cross section Pk section. At this time, when the energized signals Du, Dv cause the same number of data to be repeatedly formed at an electrical angle K as shown in FIG. 18, a large spark will occur. The paper size is applicable to the Chinese S family standard (CNS &gt; A4 specifications ( (210X297 mm) "37- The Central Bureau of Economic Affairs of the Ministry of Economic Affairs and the Ministry of Economics and Social Affairs of the People's Republic of China, only the Acupuncture and Moxibustion Cooperative Printing Association A7 B7 V. Description of the Invention (35) Electric current is generated and noise is generated. In other words, when focusing on the U-phase, it will switch The components 5 7 a and 5 7 f are set to i ON, and the current flowing through the DC line 4 7 a of the main circuit 4 7 of the conversion gas is set to 2 U when the amplitude of the current flowing through the U-phase coil 2 6 u is set to As shown by the symbol II in Fig. 20, in this state, when the conversion element 5 7 a changes from ON to OFF, the current will be as shown in Fig. 20 by the symbol 12 and the motor coil 2 6 u, 2 6 w — Collector of conversion element 5 7 f. Between emitters — freewheeling diode 5 8 b — Motor coil 26u, 2 6w route the coil current. Once again, when conversion element 5 7 a is set to ON The freewheeling diode 5 8 b is unable to stop the flow between the reverse recovery time due to the accumulated charge of the current flowing before. As shown in FIG. 19, a short-circuit current of the conversion element flows about 7A to the DC line 47a. Similarly, when the ON of the overlapping conversion element 57c changes, a short-circuit current of 9A flows. However, in the winding lines 26u and 26v, When a sine wave current flows at 26w, the switching elements of each phase are switched at the same time at different electrical angles and subtle differences during the current. Simultaneously, when the U-phase and V-phase currents flow, the switching elements 57a, 57c, 57f is ON. As described above, at the timing when the conversion element 5 7 a changes from OF F to ON, and when the conversion element 5 7 c changes from OFF to ON, a short-circuit current flows at DC (line 47 a. Here, at U When the current amplitudes of the phases U and U are the same (when the current waveforms cross), as shown in FIG. 18, if the energizing signals D u and D v at the electrical angle are the same at this time, the drive signals Vu processed by the PWM are the same. p, Vv p are completely the same, and the conversion element 5 7 a conforms to the Chinese paper standard (CNS &gt; Λ4 specification (2 丨 0X297)) -38- --------- 2 ---- -. π ------ ^ (诮 Please read the back · &·;-Note before filling in this page) Responsibility of the Bureau is eliminated. A7 B7 V. Description of the Invention (36) The ON timings of the conversion elements 5 7 c are exactly the same (refer to the symbols x and y in Figure 19). In this way, the freewheel is triggered. When the diodes 58b and 5 8 d are in the k-square, a short-circuit current flows, and a spark current which is about 2 times (about 15 A) in general is flowing. This spark current has an adverse effect not only on the operation of the entire control circuit, but also on the operation of household appliances other than the washing machine. Especially when the rotation speed of the motor 20 is at a low speed, especially when the position determining means of the washing operation is implemented, the cycle of the electrical angle of 1 degree is also long, and the overlapping time of the short-circuit current is also long, which causes noise disturbance. More serious. However, in this embodiment, each of the power-on signals will be Du, Dv,

Dw is formed by shifting the electrical angle by 12 1 degrees as shown in FIGS. 14 and 15. It does not become the same data at the same electrical angle. In short, as shown in FIG. 16 When the phase current amplitude of the motor 20 is made uniform, the ON time band of the conversion element is shifted, so the short-circuit currents do not overlap. Therefore, it is possible to reduce the generation of large spark currents and prevent the generation of noise. . It can effectively seek to prevent the occurrence of noise β, especially when implementing the position determination method, and the rotary drive from the brushless motor to the rotating tank and the stirring body may not be a direct drive method, for example, a rotary Fuda by a belt transmission mechanism or the like Means to convey rotation are also available. [Effects of the Invention] The present invention can be understood from the above description, and the following effects can be obtained. According to the invention in item 1 of the scope of the patent application, there are regenerative braking methods, discharge braking methods, and short-circuit braking methods as electromagnetic braking methods. * This paper standard uses China National Slope (CNS) Α4 specification (210X297 mm)- 39----------. '乂 ------ 1Τ ------ ^--. (. &Lt; 铕 W read the notes on the back before filling this page) V. Description of the invention (37) Compared with the case of using mechanical braking means, the structure can be simplified, and the braking effect can be expected more than when using a single electromagnetic braking means. * The improvement of the effect can also be expected Reduction of vibration or noise during braking. According to the invention of the second patent application scope, the regenerative braking means, the electric discharge braking means, and the short-circuit braking means *, which are electromagnetic braking means, are simpler than the mechanical braking means. Compared with the use of a single electromagnetic braking method, it is more expected to improve the braking effect, and also to reduce the vibration or noise during braking. In addition, it is combined with the method of directly rotating the rotating groove and the stirring body. . Noise reduction is of great help. According to the invention in item 3 of the scope of patent application, when the brushless motor is decelerated, it is composed of one or two or more braking means, so the braking effect can be good and fast, and the braking effect is good. On the occasion, it can prevent temperature rise, prevent damage to circuit components, reduce vibration and noise, and reduce vibration and noise. According to the invention in the scope of patent application No. 4, due to the contents of the operation in response to the request for washing, one or two or more braking means are combined. Therefore, it is possible to obtain a good braking effect on the operation content of the washing, and to prevent the temperature from rising during the deceleration, or to prevent damage to the circuit components, and reduce vibration and noise. '' The invention in the fifth scope of the patent application, because the short-circuit braking means is executed before the regenerative braking means is executed. Therefore, before the rotary braking means is executed, the motor power can be consumed by short-circuiting the motor coil, and the regeneration can be regenerated. When the regenerative current becomes too large during the implementation of the braking method, it is necessary to prevent the application of the Chinese national standard (〇 «) 8 4 specifications (210 parent 297 mm) -40-A7 B7 5. The invention description (38) And can prevent damage to the circuit components of the DC power supply circuit or the main circuit of the converter. Please read back. Please fill in the notes again. This page is based on: The invention in the 6th scope of the patent application, because there is a state where the main circuit of the converter is connected to the DC power circuit and the discharge element is open, and the converter The main circuit is an open circuit from the DC power circuit and switches between the state where the discharge elements are connected. When performing the regenerative braking method, the short circuit braking method and the discharge braking method will be executed first in order, and when the short circuit braking method is executed, it will The DC power circuit and the main circuit of the converter are opened by the aforementioned switching means, and then the main circuit of the converter is connected to the discharge element, so that the damage of the circuit components can be prevented. Moreover, since the direct current power circuit and the main circuit of the converter are Since the switching operation is performed when the short-circuit braking means which does not generate a potential difference occurs during execution, it is possible to prevent the occurrence of spark explosion or contact melting during the switching operation. According to the invention in item 7 of the scope of patent application, because the combination of the braking means in the washing operation and the dehydration operation is different, it can obtain a good braking effect according to each washing operation and dehydration operation, and prevent deceleration. When the temperature rises, or to prevent damage to the circuit components, reduce vibration. Noise Susceptibility: 'Ministry of Standards and Technology Bureau of the People's Republic of China printed the sound of consumer cooperatives. According to the invention in the scope of patent application No. 8, since the brushless motor can be decelerated in different combinations according to the presence or absence of urgency, it can be decelerated in a short time when there is urgency, and When there is no urgency, it can effectively prevent temperature rise or vibration, and decelerate relatively slowly. According to the invention in item 9 of the scope of the patent application, the paper size ii of the discharge brake handbook is implemented using the Chinese S standard (CNS) A4 specification (210X297 mm) -41-繁 A7 B7 5. In the description of the invention (39), it is possible to suppress the occurrence of noise during the operation of the discharge conversion element of the discharge circuit. Moreover, there is no need for a large capacitance. According to the invention of claim 10 in the scope of the patent application, since the charging resistor charged in the capacitor is connected in series to the capacitor, no spark will occur or contact melting will occur when the switching means performs the switching operation. According to the invention in item 11 of the scope of the patent application, because the bipolar body that discharges the electric charge of the power supply container toward the DC power circuit side is connected in parallel with the charging resistor, even when the motor is in a rotating state, even if it encounters a power outage or the power plug is Pulling up and causing the switching means to perform the switching operation will not cause a spark to burst or the contacts to melt. According to the invention in item 12 of the scope of patent application, since the ON time bands of the conversion elements are shifted at the timing when the phase current amplitudes of the brushless motors are uniform, it can reduce the occurrence of large spark currents and help prevent noise. produce. [Brief Description of the Drawings] FIG. 1 is a diagram showing an electric configuration of a fully automatic washing machine according to an embodiment of the present invention. Fig. 2 is a side longitudinal sectional view of a fully automatic washing machine. Fig. 3 is a side longitudinal sectional view of the driving mechanism a of the stirring body and the rotary tank; Fig. 4 is an exploded perspective view of the holder of the brushless motor. Fig. 5 is an exploded perspective view of the brushless motor and the clutch. &gt; FIG. 6 is a perspective view of a clutch and a control lever. (Please read the precautions on the back before filling in this card.) Order • Thread paper size: Use China National Standard (CNS) A4 specification (210 × 297). The paper size of printed and printed papers is generally the Chinese National Standard (CNS) A4 specification (210X297 mm) A7 __B7 V. Description of the invention (40) Figure 7 is the third figure corresponding to the different switching states of the clutch. The time flow when the sine wave of the 8th round brushless motor is energized. Figure 9 is a diagram showing the contents of the braking mode. Fig. * 10 is a diagram showing the use of the braking mode. Fig. 11 is a diagram showing the change of the rotation speed of the motor during the washing operation. Fig. 12 is a graph showing changes in the rotation speed of the motor during dehydration operation in each braking mode. Fig. 13 is a graph showing changes in the rotation speed of the motor during dehydration operation in other braking modes. FIG. 14 is a diagram partially showing the U-phase and V-phase energization signals. Fig. 15 is a diagram showing specific components of the energization signal. Figure 16 shows the ON / OFF status of the conversion element and the change in DC line current. Fig. 17 is a diagram partially showing a U-phase 'V-phase power-on signal of a reference example. Figure 18 is the equivalent of Figure 15. Figure 19 is the equivalent of Figure 16. Fig. 20 is a diagram showing a state of a current accompanying ON / \ FF of the conversion element. [Illustration of drawing number] 1 Outer box ^ 43 ~ = {Read the precautions on the back of the dish before filling in this page) •? Τ Printed by the Military and Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention Description Cm) 2 Water receiving tank (outer tank) 4 Rotating tank 5 Agitating body 12 Slot shaft 14 Agitating shaft 20 Brushless motor 2 1 Holder 2 6 Coil 2 7 Rotator 30 Rotor magnet 3 2 Clutch 33 Closing lever 38 Control lever 47 Inverter Main circuit 48 Discharge circuit 4 9 Discharge resistor (discharge element). (Read the notes on the back of the poem before filling this page) Λ, ιτ -wire 5 0 Discharge conversion element 5 I Capacitor 5 3 Charging resistor 5 4 2 Polar body 5 5 Regeneration diode 5 7 a ~ 5 7 f Conversion element 6 0 Drive circuit 6 I PWM circuit This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm) -44 · A7 B7 5 、 Explanation (42) 62 Driving means 63 Microcomputer (电脑 Please read the precautions on the back before filling in this page

JA

、 1T Printed by the China National Standards Bureau of the Ministry of Economic Affairs of the People's Republic of China, and printed by the Consumer Cooperatives. 1 This paper size applies to the Chinese National Standard (CNS) Α4 specification (210X297 male *) -45-

Claims (1)

Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs B8 C8 ____D8_ VI. Patent Application 1 · A washing machine, which is characterized by: a brushless motor with a rotating rotary tank and a stirring body, and a DC power circuit, It is constituted by a main circuit of a converter of a plurality of phase-bridge-connected components, a driving means for driving the brushless motor, and a regenerative braking means for regenerating the starting power of the brushless motor to the DC power supply circuit, and by A discharge element connected between both ends of the input side of the main circuit of the inverter is a discharge braking means for causing the power to be consumed and a short-circuit braking means for setting the brushless motor coil as a short circuit. Two types of washing machines, which are characterized by having: a brushless motor for driving a rotary rotating tank and a stirring body by a direct drive method, and a conversion device having a DC power circuit and provided with a plurality of phase bridge connection conversion elements The main circuit of the generator is used to drive the relaying means of the brushless motor, and the regenerative braking means to regenerate the starting power of the brushless motor to the DC power supply circuit. The discharge element between the two ends of the input side makes the discharge braking means that consumes the above-mentioned power consumed, and the short-circuit braking means that sets the brushless motor coil short-circuited. 3. The washing machine as described in item 1 or 2 of the scope of the patent application, wherein when the brushless motor is decelerated, it is composed of one or two or more braking means. This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) ~~ 1 ^ 1-* (Please read the "Cautions on the back before filling this page") Binding and ordering. Hji current power circuit and il __ Si _ VI 'Patent Application Scope 4. The washing machine described in item 3 of the patent application scope, in which one or two or more braking means are combined according to the operation content of the washing operation. 5. The washing machine described in item 3 of the scope of patent application, wherein when the regenerative braking means is executed, it is set to first execute the short-circuit braking means. 6. If the scope of patent application is No. 1 for irrigation or pumping, it is provided that the main circuit of the converter is continuously copied || The discharge element is open, and the main circuit of the converter is open from the DC power circuit and the discharge element is The connected state is used as a switching means. When regenerative braking is performed, short-circuit braking and discharge braking are performed in order. When the short-circuit braking is performed, the DC power circuit and the converter are switched by the aforementioned switching means. The main circuit is set to open circuit, and then the main circuit of the converter is connected to the discharge element. "7. The washing machine as described in item 4 of the scope of patent application, wherein the combination of the braking means in the washing operation and the dehydration operation is different. 8. The washing machine as described in item 3 of the scope of patent application, wherein when the brushless motor is decelerated, a combination of different braking methods can be used depending on the presence or absence of urgency. 9. The washing machine as described in item 1 or 2 of the scope of patent application, wherein: the discharge element is connected in series with a discharge conversion element that operates in response to a voltage induced by a motor generated in the main circuit of the inverter, and The series circuit is connected in parallel with the capacitor, and one end is connected to the aforementioned DC power supply. Read the note on the back of the page and fill in this page.) The paper size of the printed paper is applicable to the China National Standards (CNS) A4 specification (210 × 297 mm) -47- Central Standards Bureau of the Ministry of Economic Affairs. Printed by Beigong Consumer Cooperative A8 B8 C8 D8 6. The discharge circuit of the negative-side output terminal of the patent application circuit is set between the positive-side output terminal of the DC power circuit and the positive-carved input terminal of the main circuit of the converter. Closed and set the open state between the positive input terminal of the inverter main circuit and the other end of the discharge circuit, and the positive output terminal of the DC power circuit and the positive input terminal of the inverter main circuit. Set between open and Switching means for switching between the positive side input terminal of the main circuit of the converter and the other end of the aforementioned discharge circuit for switching to a closed second state: When the discharge braking means is executed, the switching means is switched to the second state I 0. The washing machine as described in item 9 of the scope of patent application, wherein when the switching means is in the first state, the capacitor connected to the capacitor is charged in series to the capacitor. II.洗衣机 The washing machine according to item 10, wherein the diodes which discharge the electric charge of the power supply container toward the DC power supply circuit side are connected in parallel to charge the resistance element. 1 2. The washing machine according to item 1 or 2 of the scope of patent application Wherein, the ON time bands of the conversion elements at the timing when the phase current amplitudes of the brushless motors are uniform are shifted. 1 ^ — — ^ ϋ in 1 ^ 1 ml In I m nn 1 ^ 1 In I, ° / v ( Please read the notes on the back before filling this page) This paper size is applicable to China National Standards (CNS) Λ4 specification (2 丨 0 X 297 mm) -48-