CN201402966Y - Automatic electromotor protector - Google Patents
Automatic electromotor protector Download PDFInfo
- Publication number
- CN201402966Y CN201402966Y CN2009200209539U CN200920020953U CN201402966Y CN 201402966 Y CN201402966 Y CN 201402966Y CN 2009200209539 U CN2009200209539 U CN 2009200209539U CN 200920020953 U CN200920020953 U CN 200920020953U CN 201402966 Y CN201402966 Y CN 201402966Y
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- CN
- China
- Prior art keywords
- protection
- input circuit
- sample input
- current sample
- electrical quantity
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an automatic electromotor protector, which comprises a current transformer (1), a cuboid shell (2), a current-sampling input circuit and a protection-executing relay assembly circuit board (3). The automatic electromotor protector has the following characteristics: the current transformer (1), the current-sampling input circuit and the protection-executing relay assembly circuit board (3) are mounted in the cuboid shell (2) together, and a power-on parameter display circuit board (4) is vertically mounted at the front ends of the current-sampling input circuit and the protection-executing relay assembly circuit board (3). The automatic electromotor protector not only can carry out normal protection on an electromotor, but also is characterized by simple structure and convenient mounting and operation, and moreover, the automatic electromotor protector can automatically set the current protection value of the electromotor, can be operated by non-professionalstaff and increases the degree of automation.
Description
Technical field
The utility model relates to a kind of privacy protection equipment of motor; particularly a kind of improvement of universal electronic type motor protector; specifically a kind ofly can not only carry out common protection to motor; and colleeting comb detects, defencive function is in one; the electrical quantity protection value of automatic setting motor, in conjunction with the operate power factor of motor; realization is to the protections such as overcurrent, undercurrent, the phase failure and imbalance of motor, and motor full-automatic protector simple in structure, that be convenient to install.
Background technology
At present, motor is used very extensive in the national product field, but motor is in operation and tends to occur various faults, and these faults all can make electric motor overheating burn out, or jeopardize operating personnel's safety.At present; be used for the protector on the motor; generally comprise current transformer; side's body case; current sample input circuit and protection are carried out relay wiring harness plate and are constituted; the bottom in the relay wiring harness plate side of the being installed in body case is carried out in current sample input circuit and protection; current transformer is provided with separately; the current sample input circuit of carrying out on the relay wiring harness plate by cable and current sample input circuit and protection is connected; mainly in the operating phase shortage of motor; short circuit; overload; underload; stall; overvoltage; under-voltage; uneven; faults such as electric leakage are carried out common monitoring and protection; the existing deficiency of this motor protector is: because current transformer is for being provided with separately, so complex structure; install inconvenient.At present; on power equipment and controller switching equipment; existingly adopted the universal electronic type motor protector, but most of existing universal electronic type motor protector needs all the professional to operate; the parameter that is provided with is more; and manually setting of parameter, amateur operating personnel are difficult to grasp, and parameter setting situation improperly often occurs; cause motor protector to implement protection and lost efficacy, cause unnecessary loss.
Summary of the invention
The purpose of this utility model is to provide a kind of and not only motor is had common defencive function; and colleeting comb instrument transformer and defencive function are in one; and the reference point of energy automatic setting motor protection, and motor full-automatic protector simple in structure, that be convenient to operate.
For reaching above purpose; the technical scheme that the utility model adopted is: this motor full-automatic protector; by current transformer; side's body case; current sample input circuit and protection are carried out relay wiring harness plate and are constituted; the bottom in the relay wiring harness plate side of the being installed in body case is carried out in current sample input circuit and protection; on current sample input circuit and protection execution relay wiring harness plate, be provided with the current sample input circuit and carry out relay with protection; it is characterized in that current transformer and current sample input circuit and protection execution relay wiring harness plate are installed in the square body case jointly; the current sample input circuit that current transformer is carried out on the relay wiring harness plate by lead and current sample input circuit and protection is connected, and carries out the vertical electrical quantity display circuit board of installing of front end of relay wiring harness plate in current sample input circuit and protection.
The utility model is also implemented by following measure: the inboard at the electrical quantity display circuit board is provided with microprocessor; the microprocessor program device; electrical quantity display and data storage module; be provided with electrical quantity inquiry button and display screen in the outside of electrical quantity display circuit board; microprocessor is connected with current sample input circuit and the protection execution relay that current sample input circuit and protection are carried out on the relay wiring harness plate respectively by lead; the electrical quantity inquiry button also is connected with microprocessor simultaneously; microprocessor is connected with data storage module and electrical quantity display again, and the microprocessor program device also is connected with microprocessor simultaneously.
Described current sample input circuit is by 9 of lead and microprocessor; 10; 11 pin are connected; 24 of microprocessor; 25; 26; 27 pin are connected with the electrical quantity display by lead; 15 pin of microprocessor are connected with the electrical quantity inquiry button; 18 of microprocessor; 19; 20; 21; 22; 23 pin are connected with the microprocessor program device; 24 of microprocessor; 25; 26; 27 pin are connected with the electrical quantity display by lead; 12 pin of microprocessor are connected 16 of microprocessor with the protection execution relay that current sample input circuit and protection are carried out on the relay wiring harness plate; 17 pin are connected with data storage module.
Described electrical quantity display is shown by display screen.
Described electrical quantity inquiry button is only established one.
Described microprocessor program device is an embedded program.
The beneficial effects of the utility model are: compare with the universal electronic type motor protector with the motor privacy protection equipment of present use; can not only realize common protection to motor; and since colleeting comb instrument transformer and common defencive function be installed in the housing; so it is simple in structure; be convenient to install and operation; owing to adopted embedded program; can current sampling signal be analyzed by embedded program; draw the maximum current of motor start-up time; and by calculating the current protection value that realizes the automatic setting motor; in running and this numerical value, compare with the mean value of a few minutes built-in motor operation; automatically revise this protection value relatively; operate power factor in conjunction with motor; realization is to the overcurrent of motor; undercurrent; protection such as the phase failure and imbalance; so the protection parameter value of energy automatic setting motor need not the professional and just can operate.
Description of drawings
Fig. 1 is the utility model structure office cross-sectional schematic.
Fig. 2 is the utility model schematic block circuit diagram.
Fig. 3 is that relay, microprocessor, electrical quantity inquiry button, data storage module, electrical quantity display connecting circuit principle schematic are carried out in the utility model current sample input circuit, protection.
Embodiment
Make the utility model with reference to accompanying drawing 1,2,3.This motor full-automatic protector; by current transformer 1; side's body case 2; current sample input circuit and protection are carried out relay wiring harness plate 3 and are constituted; the bottom in relay wiring harness plate 3 side's of being installed in body case 2 is carried out in current sample input circuit and protection; on current sample input circuit and protection execution relay wiring harness plate 3, be provided with current sample input circuit 12 and carry out relay 11 with protection; it is characterized in that current transformer 1 and current sample input circuit and protection execution relay wiring harness plate 3 are installed in the square body case 2 jointly; make its compact conformation; be convenient to install; the current sample input circuit 12 that current transformer 1 is carried out on the relay wiring harness plate 3 by lead and current sample input circuit and protection is connected, and carries out the vertical electrical quantity display circuit board 4 of installing of front end of relay wiring harness plate 3 in current sample input circuit and protection.
The inboard of described electrical quantity display circuit board 4 is provided with microprocessor 5; microprocessor program device 6; electrical quantity display 8 and data storage module 9; be provided with electrical quantity inquiry button 10 and display screen 7 in the outside of electrical quantity display circuit board 4; current sample input circuit 12 and protection execution relay 11 that microprocessor 5 is carried out on the relay wiring harness plate 3 by lead and current sample input circuit and protection are connected; electrical quantity inquiry button 10 also is connected with microprocessor 5 simultaneously; microprocessor 5 is connected with data storage module 9 and electrical quantity display 8 again; current transformer 1 and current sample input circuit 12 are with detected information input microprocessor 5; through computing; data after the analysis; carry out the general common protection except that passing to protection execution relay 11; simultaneously; also pass to electrical quantity display 8 and data storage module 9; be used for showing and storing; microprocessor program device 6 also is connected with microprocessor simultaneously; undertaken realizing different Presentation Functions and controlled function respectively after the data processing by microprocessor program device 6; startup to motor; operation; the reference point of power factor sets up on their own, automatically need not Artificial Control thereby reach.
Described current sample input circuit 12 is by 9 of lead and microprocessor 5,10,11 pin are connected, 24 of microprocessor 5,25,26,27 pin are connected with electrical quantity display 8 by lead, 15 pin of microprocessor 5 are connected with electrical quantity inquiry button 10,18 of microprocessor 5,19,20,21,22,23 pin are connected with microprocessor program device 6,24 of microprocessor 5,25,26,27 pin are connected with electrical quantity display 8 by lead, instruct its displaying contents by electrical quantity inquiry button 10,12 pin of microprocessor 5 are connected with the protection execution relay 11 that current sample input circuit and protection are carried out on the relay wiring harness plate 3, carry out the common protection that relay 11 is realized motor by protection, 16 of microprocessor 5,17 pin are connected with data storage module 9, thereby various display parameters are stored; Described electrical quantity display 8 is shown by display screen 7; 10 of described electrical quantity inquiry button are established one, press electrical quantity inquiry button 10, can show motor start-up maximum current, average running current, the current values when having fault to take place respectively.
Claims (2)
1; a kind of motor full-automatic protector; by current transformer (1); side's body case (2); current sample input circuit and protection are carried out relay wiring harness plate (3) and are constituted; the bottom in relay wiring harness plate (3) side's of being installed in body case (2) is carried out in current sample input circuit and protection; on current sample input circuit and protection execution relay wiring harness plate (3), be provided with current sample input circuit (12) and protection execution relay (11); it is characterized in that current transformer (1) and current sample input circuit and protection execution relay wiring harness plate (3) are installed in the square body case (2) jointly, at the vertical electrical quantity display circuit board (4) of installing of front end of current sample input circuit and protection execution relay wiring harness plate (3).
2; motor full-automatic protector according to claim 1; the inboard that it is characterized in that described electrical quantity display circuit board (4) is provided with microprocessor (5); microprocessor program device (6); electrical quantity display (8) and data storage module (9); be provided with electrical quantity inquiry button (10) and display screen (7) in the outside of electrical quantity display circuit board (4); current sample input circuit (12) and protection execution relay (11) that microprocessor (5) is carried out on the relay wiring harness plate (3) by lead and current sample input circuit and protection are connected; electrical quantity inquiry button (10) also is connected with microprocessor (5) simultaneously, and microprocessor (5) is connected with data storage module (9) and electrical quantity display (8) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200209539U CN201402966Y (en) | 2009-04-16 | 2009-04-16 | Automatic electromotor protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200209539U CN201402966Y (en) | 2009-04-16 | 2009-04-16 | Automatic electromotor protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201402966Y true CN201402966Y (en) | 2010-02-10 |
Family
ID=41662765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200209539U Expired - Fee Related CN201402966Y (en) | 2009-04-16 | 2009-04-16 | Automatic electromotor protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201402966Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184123A (en) * | 2013-05-21 | 2014-12-03 | 上海联影医疗科技有限公司 | Motor, motor motion protection method and device |
| CN111044901A (en) * | 2019-12-27 | 2020-04-21 | 中铁山河工程装备股份有限公司 | Fault early warning method and system for double-mode shield machine |
-
2009
- 2009-04-16 CN CN2009200209539U patent/CN201402966Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104184123A (en) * | 2013-05-21 | 2014-12-03 | 上海联影医疗科技有限公司 | Motor, motor motion protection method and device |
| CN111044901A (en) * | 2019-12-27 | 2020-04-21 | 中铁山河工程装备股份有限公司 | Fault early warning method and system for double-mode shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100210 Termination date: 20100416 |