Control device and control method for air conditioner auxiliary electrical heating
An auxiliary electric heating and control device technology, which is applied in the field of air conditioner control, can solve the problems that electric heaters cannot be completely prevented from dry burning, and achieve the effects of strong detection accuracy, improved safety performance, and easy layout
Active Publication Date: 2015-06-10
AUX AIR CONDITIONING LTD BY SHARE LTD
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Problems solved by technology
However, the above methods are all based on temperature detection, the detection position is relatively fixed, and the detected temperature is not necessarily the highest temperature at the electric heating place, so it cannot completely eliminate the occurrence of dry heating of the electric heater, and there are still cases where the air conditioner catches fire and causes major fires. potential for economic loss
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[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0025] Such as figure 1 As shown, the control device for auxiliary electric heating of an air conditioner in this embodiment includes a current transformer 10, a damper motor 3, a fan 4, a thermostat 5, an electric heater 6, a thermal fuse 7, and a live wire L of a power supply. And zero line N, microprocessor MCU, relay one RY1, relay two RY2, relay three RY3, relay four RY4. Wherein, the input terminals of relay one RY1 and relay two RY2 are respectively connected on different chip pins of the microprocessor MCU; the output terminal of relay one RY1, the output terminal of relay two RY2, electric heater 6, thermal fuse 7, The thermostats 5 are all connected in series on the circuit between the live line L and the neutral line N of the power s...
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The invention discloses a control device for air conditioner auxiliary electrical heating. The control device comprises a current transformer (10), an electrical heater (6), a microprocessor (MCU), a relay 1 (RY1) and a relay 2( RY2), wherein the input terminals of the relay 1 and the relay 2 are connected to different chip pins respectively, each of the output terminal of the relay 1, output terminal of the relay 2 and the electrical heater is connected to the circuit between the live wire (L) and the null line of the power supply in series and forms a electrical heating power supply loop (1) together, and the electrical heating power supply loop (1) passes through the primary side (11) of the current transformer (10) and the secondary side (12) of the current transformer, and is connected the microprocessor. The control device for air conditioner auxiliary electrical heating provided by the invention is not influenced by the effect of the detection position. Comparing with the present art based on temperature detection, the arrangement of the control device is more easy and the accuracy of the detection is higher. Moreover, the invention also relates to the control method of the control device.
Description
technical field [0001] The invention relates to the control field of air conditioners, in particular to a control device and a control method for auxiliary electric heating of an air conditioner. Background technique [0002] Existing heat pump air conditioners are generally equipped with auxiliary electric heaters, such as PTCR electric heaters or electric heating tubes, etc. These electric heaters are turned on in low temperature conditions (outdoor temperature is 10°C and below) or when the heating capacity is insufficient , for supplementing heat in the room where the air conditioner is located. [0003] However, in the standby state, the misoperation of the electric heating will cause the local high temperature of the auxiliary electric heater, which will cause the deformation and melting of the plastic parts of the air conditioner, and then cause safety accidents such as fire. [0004] For this reason, in the existing air conditioner, the two ends or one end of the el...
Claims
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IPC IPC(8): F24F11/00
Inventor 杜鹏郑坚江
Owner AUX AIR CONDITIONING LTD BY SHARE LTD