CN204333925U - Motor automatic fault detection system - Google Patents

Motor automatic fault detection system Download PDF

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Publication number
CN204333925U
CN204333925U CN201420721539.1U CN201420721539U CN204333925U CN 204333925 U CN204333925 U CN 204333925U CN 201420721539 U CN201420721539 U CN 201420721539U CN 204333925 U CN204333925 U CN 204333925U
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CN
China
Prior art keywords
binding post
motor
winding binding
power supply
fault detection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201420721539.1U
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Chinese (zh)
Inventor
刘武
吴超
陈生
于洪涛
李开友
温子健
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201420721539.1U priority Critical patent/CN204333925U/en
Application granted granted Critical
Publication of CN204333925U publication Critical patent/CN204333925U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of motor automatic fault detection system, comprise motor, master board and power supply relay, motor comprises main winding binding post and multiple auxiliary winding binding post, main winding binding post is connected to one end of power supply by master board, and multiple auxiliary winding binding post is connected to the other end of power supply by electronic relay corresponding with it; Motor automatic fault detection system also comprises energising detecting element and control unit, energising detecting element is connected between auxiliary winding binding post and corresponding electronic relay, control unit for receiving the signal of energising detecting element, and according to the break-make of the signal control power supply relay received.Adopt the technical solution of the utility model; when detect have two or more auxiliary winding binding post to be energized simultaneously simultaneously time; motor automatic fault detection system meeting automatic cut-off power, protection motor can not run and damage under abnormal condition, improves the reliability of air-conditioning system.

Description

Motor automatic fault detection system
Technical field
The utility model relates to the motor device of air-conditioning, in particular to a kind of motor automatic fault detection system.
Background technology
Single-phase capacitance formula many taps motor in existing air conditioner is generally the speed governing that the break-make changing each gear tapping power supply by electronic relay realizes motor, under normal circumstances, single-phase capacitance formula many taps electric machine speed regulation principle is: motor main winding terminal is connected to one end of power line by master control borad, and each auxiliary winding terminal of motor is connected to the other end of power line respectively by electronic relay.When air conditioner needs high-grade rotating speed, mainboard control relay closes, and other relays are in off-state, and motor main winding and the energising of high-grade auxiliary winding, make motor be in high rotating speed running status.Other middle-grade, low-grade, low-low operational modes are similar.Air conditioner is according to the needs of various operating mode, and the closed and disconnection of continuous transfer relay, obtains the corresponding rotating speed of motor, to reach the object of automatic governing speed.
But; there is certain defect in existing method; such as when control logic is made mistakes or relay fault time; there will be the situation that the two or more auxiliary winding of motor is energized simultaneously; if and when motor has two or more auxiliary winding to be energized, electrical fault can be caused even to burn, and motor itself does not have automatic protection functions simultaneously simultaneously; therefore there is certain potential safety hazard in system, reduces the reliability of air-conditioning system.
Utility model content
A kind of motor automatic fault fault detection system is provided in the utility model embodiment, can automatic cut-off power, protection motor can not run and damage under abnormal condition, the reliability of raising air-conditioning system.
For solving the problems of the technologies described above, the utility model embodiment provides a kind of motor automatic fault detection system, comprise motor, master board and power supply relay, described motor comprises main winding binding post and multiple auxiliary winding binding post, described main winding binding post is connected to one end of power supply by master board, described multiple auxiliary winding binding post is connected to the other end of power supply by electronic relay corresponding with it; Described motor automatic fault detection system also comprises: energising detecting element, and described energising detecting element is connected between described auxiliary winding binding post and corresponding described electronic relay; Control unit, for receiving the signal of described energising detecting element, and according to the break-make of the signal control power supply relay received.
As preferably, described energising detecting element is current sensor.
As preferably, described control unit comprises control chip, the signal that described control chip sends for receiving and detect current sensor, and exports the break-make of corresponding signal control power supply relay.
As preferably, described motor automatic fault detection system also comprises alarm, and described alarm is connected to described control unit.
Application the technical solution of the utility model, motor automatic fault detection system, comprise motor, master board and power supply relay, motor comprises main winding binding post and multiple auxiliary winding binding post, main winding binding post is connected to one end of power supply by master board, and multiple auxiliary winding binding post is connected to the other end of power supply by electronic relay corresponding with it; Motor automatic fault detection system also comprises energising detecting element and control unit, energising detecting element is connected between auxiliary winding binding post and corresponding electronic relay, control unit for receiving the signal of energising detecting element, and according to the break-make of the signal control power supply relay received.Owing to adopting above-mentioned technical scheme; when detect have two or more auxiliary winding binding post to be energized simultaneously simultaneously time; motor automatic fault detection system meeting automatic cut-off power, protection motor can not run and damage under abnormal condition, improves the reliability of air-conditioning system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the motor automatic fault fault detection system of the utility model embodiment.
Description of reference numerals
10, motor; 20, master board; 30, power supply relay; 40, control unit; 50, alarm; 11, main winding binding post; 12, high-grade auxiliary winding binding post; 13, middle-grade auxiliary winding binding post; 14, low-grade auxiliary winding binding post; 15, low-low auxiliary winding binding post; 16, high-grade current sensor; 17, middle-grade current sensor; 18, low-grade current sensor; 19, low-low current sensor; 21, high-grade electronic relay; 22, middle-grade electronic relay; 23, low-grade electronic relay; 24, low-low electronic relay.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but not as to restriction of the present utility model.
Fig. 1 is the structural representation of the motor automatic fault fault detection system of the utility model embodiment.As shown in Figure 1, motor automatic fault detection system, comprises motor 10, master board 20, power supply relay 30, energising detecting element and control unit 40.Motor 10 comprises main winding binding post 11 and multiple auxiliary winding binding post 12, 13, 14, 15, main winding binding post 11 is connected to one end of power supply by master board 20, in the utility model embodiment, motor 10 is unidirectional condenser many taps motor, auxiliary winding binding post 12, 13, 14, 15 comprise four, be respectively high-grade auxiliary winding binding post 12, middle-grade auxiliary winding binding post 13, low-grade auxiliary winding binding post 14 and low-low auxiliary winding binding post 15, above-mentioned auxiliary winding binding post 12, 13, 14, 15 by high-grade electronic relay 21 corresponding with it, middle-grade electronic relay 22, low-grade electronic relay 23 and low-low electronic relay 24 are connected to the other end of power supply.
At auxiliary winding binding post 12, between 13,14,15 and the electronic relay 21,22,23,24 of correspondence, be provided with energising detecting element, the detecting element that is energized in the utility model embodiment is current sensor 16,17,18,19, comprise high-grade current sensor 16, middle-grade current sensor 17, low-grade current sensor 18 and low-low current sensor 19, for detecting the break-make of respective lines, and signal is sent to control unit 40, control unit is according to the break-make of the signal control power supply relay 30 received.
In fact, in a unshowned embodiment, motor 10 can comprise two, three, four even more auxiliary winding binding posts, is not limited to four cited in the utility model embodiment.Accordingly, the electronic relay corresponding with auxiliary winding binding post is identical with the quantity of auxiliary winding binding post with the quantity of the detecting element that is energized, and is also not limited to four cited by the utility model.
Preferably, control unit 40 comprises control chip, can select IC chip, adopts the signal that control chip reception and detection current sensor 16,17,18,19 send, and exports the break-make of corresponding signal control power supply relay 30.
Adopt motor automatic fault fault detection system of the present utility model, energising detecting element can detect the break-make situation of auxiliary winding binding post 12,13,14,15 in real time, and send signal to control unit 40, control unit 40, according to the break-make situation of each auxiliary winding binding post 12,13,14,15 detected, controls the opening and closing of power supply relay 30.
In the utility model embodiment, when one of them auxiliary winding binding post is energized, such as, when high-grade auxiliary winding binding post 12 is energized, just have electric current in corresponding high-grade current sensor 16 to pass through, high-grade current sensor 16 sends high level signal and is input on the control chip of control unit 40, is detected the quantity of high level signal, and export the opening and closing of corresponding signal control power supply relay 30 by control chip.Now, if air-conditioning normally runs, only having a current sensor has high level signal to export, namely the high level signal only having high-grade current sensor 16 to send is input in control chip, control chip receives a high level signal, be judged as that system is normally run, power supply relay 30 can not disconnect, and motor 10 can normally run.When master board 20 logical mistake or electronic relay 21,22,23,24 break down, when causing having two or more electronic relays to close simultaneously, current sensor corresponding in circuit just all can export high level signal to control chip, when control chip has detected that two or more high level signal inputs simultaneously, system of will judging is abnormal operating state, now control chip can export corresponding signal, deenergization relay 30, guarantee system can not be run under abnormal condition.
Preferably, electric motor automatic detection system also comprises alarm 50, and alarm 50 is connected to control unit 40, and when judgement system is abnormal operating state, control unit 40, while control power supply relay 30 disconnects, opens alarm 50.
Certainly, be more than preferred implementation of the present utility model.It should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model general principle, can also make some improvements and modifications, these improvements and modifications are also considered as protection range of the present utility model.

Claims (4)

1. a motor automatic fault detection system, comprise motor (10), master board (20) and power supply relay (30), described motor (10) comprises main winding binding post (11) and multiple auxiliary winding binding post (12,13,14,15), described main winding binding post (11) is connected to one end of power supply by master board (20), described multiple auxiliary winding binding post (12,13,14,15) is connected to the other end of power supply by electronic relay (21,22,23,24) corresponding with it; It is characterized in that, described motor automatic fault detection system also comprises:
Energising detecting element, described energising detecting element is connected between described auxiliary winding binding post (12,13,14,15) with corresponding described electronic relay (21,22,23,24);
Control unit (40), for receiving the signal of described energising detecting element, and according to the break-make of the signal control power supply relay (30) received.
2. motor automatic fault detection system according to claim 1, is characterized in that, described energising detecting element is current sensor (16,17,18,19).
3. motor automatic fault detection system according to claim 2, it is characterized in that, described control unit (40) comprises control chip, described control chip is used for the signal received and detection current sensor (16,17,18,19) sends, and exports the break-make of corresponding signal control power supply relay (30).
4. motor automatic fault detection system according to claim 1, is characterized in that, described motor automatic fault detection system also comprises alarm (50), and described alarm is connected to described control unit (40).
CN201420721539.1U 2014-11-25 2014-11-25 Motor automatic fault detection system Withdrawn - After Issue CN204333925U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420721539.1U CN204333925U (en) 2014-11-25 2014-11-25 Motor automatic fault detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420721539.1U CN204333925U (en) 2014-11-25 2014-11-25 Motor automatic fault detection system

Publications (1)

Publication Number Publication Date
CN204333925U true CN204333925U (en) 2015-05-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420721539.1U Withdrawn - After Issue CN204333925U (en) 2014-11-25 2014-11-25 Motor automatic fault detection system

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538930A (en) * 2014-11-25 2015-04-22 珠海格力电器股份有限公司 Motor automatic fault detection system and method
CN106711988A (en) * 2017-01-12 2017-05-24 青岛海尔空调电子有限公司 Protector, alternating-current fan control circuit and water machine terminal equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104538930A (en) * 2014-11-25 2015-04-22 珠海格力电器股份有限公司 Motor automatic fault detection system and method
CN104538930B (en) * 2014-11-25 2017-11-10 珠海格力电器股份有限公司 Motor automatic fault detecting system and method
CN106711988A (en) * 2017-01-12 2017-05-24 青岛海尔空调电子有限公司 Protector, alternating-current fan control circuit and water machine terminal equipment

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C14 Grant of patent or utility model
AV01 Patent right actively abandoned

Granted publication date: 20150513

Effective date of abandoning: 20171110

AV01 Patent right actively abandoned