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Power supply phase sequence automatic regulator of three-phase air-conditioner

A technology of automatic adjustment and power supply, which is applied in the direction of automatic disconnection of emergency protection devices, electrical components, circuit devices, etc., can solve the problems of burning compressor motors, etc., and achieve the effect of avoiding harsh noise and long service life

Inactive Publication Date: 2004-08-18
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

More importantly, a slight negligence may burn the compressor motor

Method used

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  • Power supply phase sequence automatic regulator of three-phase air-conditioner
  • Power supply phase sequence automatic regulator of three-phase air-conditioner
  • Power supply phase sequence automatic regulator of three-phase air-conditioner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1 of the present invention is as follows: a kind of power supply phase sequence automatic regulator of three-phase air conditioner, as shown in Figure 1~ image 3 shown.

[0015] As shown in Fig. 1, the electric circuit of the present invention is installed on the reverse-phase protector 11 on the outdoor unit circuit board, and the signal line connected with the input end C of reverse-phase protector 11 is respectively connected to the power supply N line and reverse-phase The coil of the first AC contactor 14 and the coil of the second AC contactor 15 between the input end A end and the input end B end of the protector 11 are respectively connected to the three-phase output end R end of the reverse phase protector 11, The first contact 1, the third contact 3, and the fifth contact 5 of the first AC contactor 14 on the S end and the T end, and its first contact 1', third contact 3', fifth contact The point 5' is respectively connected in parallel with the s...

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Abstract

A phase sequence automatic regulator of power source for the phase air conditioner belonging to air conditioniner technology consists of anti-phase protector, signal wire connecting with C end, coil is AC contractor one end two to be connected with zero line, A end and B end in paralle, contact, 1,3,5 and AC contactor one and two to be connected with its three phase output end in parallel and output end connecting with contact 2,4,6 of AC contactor one. The contact 2,4,6 of AC contactor two will connec with contact 2,6,4 of AC contactor one separately. The anti-phase protector is dformed by resistar R1, capacitor C1 and resistor R2 connected with in between RST phase and central line separately, capacitor C2 series circuit, relay coil, A and of connecting constant open contact and B end of constant close contact of connecting relay. It can switch on to the correct position in transient time automatically to protect the compressor motor from burning when power source phase sequence is changing.

Description

technical field [0001] The invention belongs to the technical field of air conditioners, and more specifically relates to a power supply phase sequence automatic regulator for three-phase air conditioners. Background technique [0002] The air conditioner of existing three-phase power supply, its compressor motor is to adopt three-phase motor. Due to the difference in the phase sequence of the three-phase power supply, the rotation direction of the three-phase motor will change, and the rotary compressor can only run according to the predetermined rotation direction of the design, otherwise the compressor motor will be burned due to the reverse cylinder. Therefore, when the phase sequence of the power supply is wrong, it must be shut down. Then manually reset and replace it with the correct phase, then the power can be turned on again to resume normal work. In this process, frequent shutdown and startup not only affects the indoor air condition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/38H02H7/097
Inventor 万初辉相金波李毅李红霞
Owner HAIER GRP CORP
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