JPS62271994A - Blower - Google Patents

Abstract

PURPOSE:To automatically switch a blown air amount, by additionally providing a function which controls a rotary speed of a fan motor in accordance with a quantity of light and temperature change information in an environmental condition where a blower is placed. CONSTITUTION:An AC power source is supplied to a fan motor speed switching tape 7 connected with a fan motor 2. On the basis of light and shade and temperature change information in a place, where a blower main unit 1 is placed, obtained by a photoelectric element 5 and a heat sensing element 6, an electronic control element 8, built in a controlling electronic circuit 4, controls the power source 11 to be electrified. Consequently, a blower enables its blown air amount to be automatically switched.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention Field of Industrial Application The present invention relates to a blower equipped with a fan motor and a fan that rotate using a general AC power source.

BACKGROUND OF THE INVENTION Conventionally, as shown in FIG. , the rotational speed of the fan 104 was selected stepwise, and the amount of air blown by the fan 104 was changed.

Problems to be Solved by the Invention In such a conventional configuration, when using a blower such as an electric fan while sleeping, the amount of air blown to the body may be reduced by slowing down the rotation of the fan 104 or by intermittent air blowing such as swinging. It is used to prevent the body from becoming excessively cold due to the heat taken away by the heat of vaporization after sweating on the body, by either holding down the temperature or using a timer to adjust the operating time. However, if you want strong airflow before sleeping and use it in the above conditions while sleeping, you will need to operate the fan motor rotation speed switch normally provided on the main unit to change the airflow state. In reality, there is a problem in that the user has to perform the above operation on the blower when he/she feels drowsy.

The present invention solves the above-mentioned conventional problems, and aims to provide a blower that is easy to use and takes the health of the user into consideration by automatically changing the amount of air blown by the blower. It is something to do.

Means for Solving the Problem In order to solve this problem, the present invention provides that when supplying AC power to the fan motor rotation speed switching tap,
A control circuit is provided to control the energization time to the fan motor rotation speed switching tap based on information about the brightness and temperature of the atmosphere in which the blower is placed.

Function: With this configuration, the control circuit controls and supplies the AC power supply time to the fan motor based on information about the brightness and darkness of the atmosphere in which the blower is placed and the temperature, thereby changing the amount of air blown.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. FIG. 1 shows a blower according to an embodiment of the present invention,
This blower is equipped with a seven-wheel motor 2 in a main body 1, a fan 3 rotated by the fan motor 2, and a tassof for switching the fan motor rotation speed connected to the fan motor 2.
When supplying AC power to -7, the electric power built into the control electronic circuit 4 is generated based on the light/darkness and temperature change information of the location where the blower body 1 is placed by the photoelectric groove element 6 and the thermal element 6. The control element 8 controls the energization of the stain source 11. The control electronic circuit 4 is connected and disconnected by switching a function selection switch 9, that is, by switching between the contact a side and the contact side, and furthermore, a manual changeover switch 10 is used to select the conventional function. are also possible combinations. As shown in FIG. 2, the control electronic circuit 4 includes a power control element 8, a logic circuit 12 having a logic function such as a microcomputer that controls the power control element 8, and a DC voltage applied to the control electronic circuit 4. The power control element 8 is inserted into the energizing circuit of the seven-arm motor 2.

Therefore, when switching the function selection switch 9, which selects the rotation speed control function of the shift motor 2 depending on the brightness and temperature changes around the blower body 1, to the contact a side, The amount of projected light is detected by the photoconductive element 5, and the surrounding temperature is detected by the heat-sensitive element 6, and environmental information is obtained. is input to the logic circuit 12 of the fan motor 2, and the power control element 8 switches the energization to the rotation speed switching tap 6 of the fan motor 2 as shown in FIG. According to the inventor, a comfortable difference α from the set temperature shown in FIG. 3 is about 3°C.

On the other hand, when the function is not selected by switching the function selection switch 9 to the contact state, the power supply to the rotation speed switching tap 6 can be switched using the manual switching switch 10, and the fan functions as a conventional blower.

Therefore, in this embodiment, changes in the amount of projected light and temperature change are affected by changes in the environmental condition in which the blower main body 1 is placed. In addition, in bedrooms, changes in the amount of light and temperature in daily life, such as indoor lighting before going to bed and night lights, place great demands on the air blowing conditions of the blower. In addition to identifying whether the conductive element 6 is caused by sunlight, general lighting, or a night light, and identifying whether the temperature is due to sunlight radiation or a temperature change due to a tropical night,
Controlling the amount of air blown is an element that provides comfort to the user.

It is also possible to have a circuit configuration in which the control electronic circuit 4 can appropriately adjust the settings for the amount of light and temperature at which the amount of air blowing is switched, and since changes in the amount of light and temperature are the information itself that changes the amount of air blowing, It is also possible to respond to a user's request to change the airflow rate switching setting. In addition, depending on the manufacturer, if the illumination luminous intensity reaches below the night light, it is possible to characterize the intermittent time or intermittent operation time, that is, the operating characteristics themselves. included.

In the above embodiment, the amount of light projected onto the photoconductive element 5 by the control electronic circuit 4 and the temperature information from the heat-sensitive elements are converted into pulse widths using an astable multi-layer, etc., but the information is converted into pulse widths using a multistage comparator. It may be switched, and the point is that the amount of light and the temperature change can be used as a means to obtain operating information of the blower.

Effects of the Invention As is clear from the above description of the embodiments, according to the present invention, a function is added to control the rotational speed of the fan motor and the amount of air blown based on information on the amount of light and temperature changes in the environment in which the blower is placed. Therefore, if that function is selected, the airflow rate will be automatically adjusted depending on the light and darkness of the environment and temperature changes, such as in a dark place when going to bed, or when the light is pouring down from your bed when you wake up, or when the temperature drops before sunrise. This system ensures a good night's sleep without causing a sudden drop in body sensations due to the amount of heat vaporized after the body sweats, and is also effective in saving energy through intermittent operation. It is something that

[Brief explanation of drawings]

Fig. 1 is a configuration diagram of a blower according to an embodiment of the present invention, Fig. 2 is an electric circuit diagram of the blower, Fig. 3 is an operating characteristic diagram showing the relationship between environmental changes and operation of the blower, and Fig. 4 is a current flow characteristic diagram of the same blower, and FIG. 5 is a configuration diagram of a conventional blower. 2...Fan motor, 4...Control electronic circuit, 5...Photoconductive element, 6...Thermosensitive element, 7... Fan motor rotation speed switching tap, 8... Power control element. Name of agent: Patent attorney Toshio Nakao and one other person (-
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Claims (2)

[Claims] (1) A blower configured to control the amount of current applied to a fan motor by a control circuit having a photoconductive element, a heat-sensitive element, and a power control element. (2) The blower according to claim 1, wherein the photoconductor and the thermosensitive element take in brightness and temperature information of the atmosphere in which the blower is placed, and control the power control element from this information.