JPS614433A - Motor for blower - Google Patents

Abstract

PURPOSE:To improve working property and maintain lead wires perfectly, by a method wherein an opening section is formed ranging the side face and the end face of the circumference of a motor frame and wherein the opening section is provided with a connecting section having the connecting terminals for connecting lead wires. CONSTITUTION:An opening section 13 is formed ranging the side face and the end face of the circumference of a cylindrical frame 11. And the opening section 13 is provided with a connecting section 14 having the connecting terminals 16 connected to internal coils 9b, and external lead wires 17 are arranged to be connected to the connecting terminals 16 with solder 18. As the result, the lead wires 17 are easily connected and the quantity of used components can be reduced. And the lead wires 17 can be perfectly maintained, and cooling effect also can be improved.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a blower motor installed to rotate a blower blade, and particularly to a cylindrical container-shaped frame!
This invention relates to a blower motor with a covered structure.

[Technical background of the invention]

BACKGROUND ART Conventionally, a motor used in a blower, for example, an electric fan, is generally located at the head of the electric fan and rotates the blower blades. In recent years, however, motors for blowers such as electric fans have been covered with a frame formed into a cylindrical container shape by pressing an iron plate, etc. Connect the internal coil yv to the external lead wire connected to the operating section where the air volume changeover switch etc. is located, cover the connection part with an insulating tube and tie it to the coil with thread, and then connect the lead wire. The nutator core is fully press-fitted into the frame while being brought out from a small hole formed in the frame.

[Problems with background technology]

In the case of the conventional type described above, soldering for connecting the internal coil V and the external lead wire can be done in a wide area outside the frame. It is cumbersome as it is necessary to hold the terminal in hand and solder it one by one.Furthermore, there is also the trouble of covering the connection part with an insulating tube and tying it to the coil with thread, which makes the work difficult for the dormitory and increases the cost. There was a problem that caused this. In addition, the small hole for leading the lead wire connected and fixed in this way out of the frame should be equipped with a protective bushing, as there is a risk of damaging the lead wire at the edge. Furthermore, the folded lead wire for press-fitting the stator core into the frame must be pulled out from the small hole described above. This has to be done at the same time, and not only is it on the opposite side, but there is also the problem that the folded lead wires may be pinched, making it impossible to press fit the stator core or damaging the lead wires. In addition, in order to avoid this, the lead wire is pulled too strongly too quickly, which causes the lead wire to come off the connection or break.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned circumstances, and therefore, its purpose is to improve the workability of connecting and assembling the internal coil and external lead wire, reduce the number of parts used, and securely connect the lead wire. It is an object of the present invention to provide a motor for a blower that provides excellent protection as well as improved cooling effects.

[Summary of the invention]

In the present invention, an opening is formed from the central side surface to the end surface of the frame, and a connection terminal that faces the opening and can be soldered for connecting an external lead wire to the inner coil TV is provided. This device is characterized in that it is provided with a connecting portion, and the lead wire can be easily connected by simply soldering the connecting portion to the connecting terminal.

[Example of invention]

An embodiment in which the present invention is applied to an electric fan motor will be described below with reference to the drawings. First, in FIG. 2, 1 is the pace of the entire electric fan, 2 is the head, 3 is the blower blade,
4 is guard. Next, in FIG. 1, reference numeral 5 denotes a cover of the head 2, in which a motor 6 is disposed together with a reduction gear mechanism 7, an oscillating mechanism 8, etc. Specifically, the motor 6 includes a stator 9, a rotor 10, etc., and a front frame 11.
A cylindrical container-shaped frame 11 consisting of α and rear frame 11b. The rotary shaft 12 protrudes from the front and rear of the frame 11, and its rear end is located inside the reduction gear mechanism 7, and its front end is located outside the cover 5, and the rotating shaft 12 protrudes from the front and rear of the frame 11. 3 and the blower blade 3
It is designed to rotate. Here, the frame 11 of the motor 6 is made by pressing both the front frame 11 & rear frame 11b of iron plates, etc., and especially the upper part of the rear frame 11b has a shape as shown in FIG. 3. A wide rectangular opening 13 is formed from the peripheral side surface to the end surface. Reference numeral 14 denotes a connecting portion facing the opening 13, which is also comprised in detail of a fan-shaped plate-shaped terminal block 15 and a required number of connecting terminals 16 each having a base embedded therein. Then, the terminal block 15 connects the pin portion 15 & protruding from the back side of the terminal block 15 to the core 9 of the stator 9.
The coils 9b1 of the stator 9, which are internal coils (not shown), are connected to the connection terminals 16, respectively, and 17 is an external lead wire. solder 1 from the opening 13 of the frame 11 to the connection terminal 16 of the connection part 14.
8 feet, and each other end is connected to the operating section 19 provided on the pace 1, which includes an air volume changeover switch, a timer, etc., by soldering. In addition, 2
Reference numeral 0 designates another opening formed in the frame 11, particularly in the lower part of the rear frame ILB, directly below the opening 13, through which the scraps of the solder 18 that break off when the lead wire 17 is connected to the connection terminal 16 are removed directly from the frame. This prevents the solder 18 from remaining inside the frame 11 and causing any harm.

Now, in the case of the above configuration, the connection terminal 16
Consequently, the lead wire 17 to the stator coil/I/9b
The soldering 181t for connection can be performed through the opening 13 of the frame 11 facing the connection terminal 16, and the folding opening 15 is shaped from the side surface to the end surface of the frame 11, especially the rear frame Ilb. It is wide because it is installed, so it does not make you feel cramped when working, and it is also easy to see, and it has an effect that is comparable in terms of ease of work compared to conventional ones that are connected outside the frame.

And, compared to the conventional one, in the one having the above structure, the connection part 14 facing the opening part 13 and fixed to the motor 6
Since all you have to do is solder 18 to the ends, you can connect them without the hassle of having to hold each pair of wire 9b and lead wire 17 in your hand and apply solder 18. Since it is supported by the connection part 14 with sufficient insulation afterwards, there is no need to worry about tying it to a conventional coil.
Furthermore, if the trouble of insulating tubes and their attachment can be omitted, work efficiency can be greatly improved, and in particular, automation using machines can be achieved. Moreover, in the case of the above configuration,
There is no need to pull out the lead wire 17 from the frame 11 after the connection work, and there is no need for the troublesome and difficult work of press-fitting the stator cob into the frame 11 along with the pulling out work. Since the stator core 9a can be press-fitted independently, the work can be made easier, and this can also be automated by a machine.

In addition, since the opening 13 of the lead wire 17 is formed as described above, unlike a hole formed in a conventional frame, there is no possibility that the lead wire 17 will be damaged due to strong force at the edge. This also eliminates the need for the bushings that were conventionally attached to small holes, thus reducing the number of parts used and greatly improving work efficiency, especially when automated by machines. In addition to making it possible, it is also possible to reduce costs.Furthermore, as mentioned above, frame 1
Since the stator core 9a can be press-fitted into the stator core 9a independently without pulling out the lead wire 17, the lead it!
17t There is no chance of the lead wire 17 getting caught between the frame 11 and the stator core 9a and causing damage.
There is no need to forcefully pull the wire, so there is no chance of it coming off the connection 14 or breaking the wire.
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Can be protected. On the other hand, the opening 13 is connected to the motor.
``It is also effective as a ventilation hole for motor 6, which increases the cooling effect of motor 6 and improves performance.
However, the present invention is not limited to the actual case shown in the drawings and can be modified as appropriate without departing from the gist of the invention.

〔Effect of the invention〕

As is clear from the foregoing, the present invention relates to a blower motor that is covered by a cylindrical container-shaped frame and is provided to rotate a blower blade, and has an open end portion extending from a central side surface to an end surface of the frame. The invention is characterized in that it has a connecting portion facing the opening and having a connecting terminal that can be soldered for connecting an external lead wire to the internal coil. It has been published in numerous publications, including improving the workability of connecting and assembling the internal coil and external lead wires, reducing the number of parts used, ensuring reliable protection of the lead wires, and improving the cooling effect. It is effective.

[Brief explanation of drawings]

The drawings show an example in which the present invention is applied to a motor for an electric fan. Fig. 1 is an enlarged longitudinal sectional side view of the head of the electric fan where the motor is located, Fig. 2 is a schematic side view of the entire electric fan, and Fig. 3 is a side view of the electric fan. FIG. 2 is an enlarged perspective view of the motor section. In the figure, 3I-j is the blower blade, 6 is the motor, 9b is the stator coil V (internal coil, 11 is the frame, 11b is the rear frame, 13f'i opening, 14 is the connection part, 15 is the terminal block, 16 is the coil Connection terminals, 17 are lead wires, and 18 are solder.

Claims (1)

[Claims] 1. It is covered by a cylindrical container-shaped frame and is installed to rotate the blowing blade, and an opening is formed from the peripheral side surface to the end surface of the frame, and the opening is faced to the opening. A motor for a blower, characterized in that it is provided with a connection part having a solderable connection terminal for connecting an external lead wire to an internal coil.