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Air conditioner

A technology for air conditioners and motors, applied in air conditioning systems, mechanical equipment, high-efficiency adjustment technology, etc., can solve problems such as rotation, fan motor rotation, fan motor 2 rotation, etc.

Inactive Publication Date: 2006-05-31
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the software mistakenly judges the open state as the closed state, there is a problem that the fan motor 2 rotates even when the user opens the exhaust port.
[0004] In addition, because relying on the signal from the central control device 3, when the user removes the louver as a protective mechanism to open the exhaust port in order to clean the inside of the air conditioner, the fan motor 2 is controlled to stop, so the central control device 3 In the event of a malfunction, there is a problem that the fan motor 2 rotates even if the user opens the exhaust port
[0005] In addition, when the user removes the louver as a protective mechanism to open the exhaust port in order to clean the inside of the air conditioner, it depends on the fact that the motor drive device 5 stops the control to stop the fan motor 2, so in the motor drive device 5 When a malfunction occurs, there is a problem that the fan motor rotates even if the user opens the exhaust port

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0032] Below, use figure 1 as well as figure 2 Embodiment 1 of the present invention will be described.

[0033] In the figure, a fan motor 2 is connected to a commercial power supply 1 via a motor drive unit 5 . The motor drive device 5 such as figure 2 As shown, it includes: a transistor Tr1 that is turned on / off according to a signal from the central control device 3; The switch detection device 6 has a normally closed switch 61 which is in a closed state when an exhaust port (not shown) provided in the air conditioner main body is opened. The switch 61 is composed of, for example, a microswitch, one end is connected to the control power supply Vcc1 , and the other end is connected to the collector of the transistor Tr1 via the coil of the electromagnetic switch 51 of the motor drive device 5 . The central control unit 3 executes a control program based on a setting signal (infrared signal) from the remote controller 4, and performs controls necessary for heating ope...

Embodiment approach 2

[0040] use Figure 5 as well as Figure 6 Embodiment 2 of the present invention will be described. Furthermore, at and at figure 1 as well as figure 2 The same or equivalent parts as in Embodiment 1 described above are given systematic symbols and explanations thereof are omitted.

[0041] Embodiment 2 such as Figure 5Shown is an example in which a power switch device 7 is inserted between the fan motor 2 and the commercial power supply 1 in addition to the motor drive device 5 . The power switching device 7 is such as Figure 6 As shown, it consists of an electromagnetic switch. One end of the coil is connected to the switch 61 of the switch detection device 6, and the other end is connected to the signal ground side. In addition, one end of the contact part is connected to the commercial power supply 1, and the other end is connected to the motor drive device. The contact part of the electromagnetic switch 51 of 5 is connected. When the switch 61 of the switch dete...

Embodiment approach 3

[0048] use Figure 9 Embodiment 3 of the present invention will be described. Moreover, in and with Figure 6 In Embodiment 2 described, the same or equivalent parts are assigned the same reference numerals and descriptions thereof are omitted.

[0049] In Embodiment 2 described above, an electromagnetic switch is used as the power switch device 7, but Embodiment 3 is an example in which a photocoupler 71 composed of a light emitting diode and a photosensitive triac is used instead of the electromagnetic switch. . The anode of the light-emitting diode is connected to the switch 61 of the switch detection device 6, and the cathode is connected to the signal ground side. In addition, one end of the photosensitive triac is connected to the commercial power supply 1, and the other end is connected to the contact point of the electromagnetic switch 51 of the motor drive device 5. Partial connection. When the switch 61 of the switch detection device 6 is in the on state of the o...

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PUM

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Abstract

An air conditioner comprising a fan motor being connected with a commercial power supply, a motor drive being inserted between the commercial power supply and the fan motor and supplying power to the fan motor based on an input signal from a central control unit and a detector for detecting the opening / closing of an air outlet in the air conditioner body. Power supply to the fan motor is interrupted through the motor drive when the opening / closing detector detects opening of the air outlet.

Description

technical field [0001] The present invention relates to fan motor control of an air conditioner, and more particularly to an air conditioner that stops driving the fan motor when an exhaust port provided on a main body of the air conditioner is opened. Background technique [0002] Existing air conditioners such as Figure 15 As shown in JP-A-2002-71194, the rotation speed is controlled by changing the energization to the fan motor 2 by sending a control signal from the central control unit 3 of the air conditioner to the motor drive unit 5 . In addition, while a mechanism (not shown) for opening and closing the exhaust port (not shown) is formed such that the user can clean the inside of the air conditioner, the louver is in the air outlet position during normal use, and the hand cannot enter the air conditioner. to the internal protection agency. When cleaning, in order to remove the louver which is the protection mechanism, the signal from the switch detection device 6 c...

Claims

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Application Information

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IPC IPC(8): F24F1/0059F24F11/00F24F11/02F24F11/04
CPCF24F1/0018F24F2140/40F24F11/77F24F11/52Y02B30/70F24F1/0059
Inventor 望月重伸片山和幸风间和广山田浩尉
Owner MITSUBISHI ELECTRIC CORP