CN103107507B - The contactor of integrated electronic type protector function and structure - Google Patents
The contactor of integrated electronic type protector function and structure Download PDFInfo
- Publication number
- CN103107507B CN103107507B CN201310051203.9A CN201310051203A CN103107507B CN 103107507 B CN103107507 B CN 103107507B CN 201310051203 A CN201310051203 A CN 201310051203A CN 103107507 B CN103107507 B CN 103107507B
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- contactor
- protector
- electronic
- current sensor
- power supply
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Abstract
The present invention relates to the contactor of a kind of integrated electronic type protector function and structure, it comprises probe of contactor arc quenching system, Contactor Magnetic System, contactor coil, stationary contact bridge, current sensor and electronic protector, three current sensors are enclosed within the three-phase stationary contact bridge of probe of contactor arc quenching system respectively, electronic protector to be arranged on contactor housing or any proper site in housing, electronic protector judges the operating state of load by the signal that current sensor exports, normally closed interlock when needing to cut off circuit by miniature relay turns off coil circuit, contactor cut-offs main circuit, there is contactor integrated electronic type protector function, structure is unified, compact with production application feature easily, realize the miniaturization of load control and scheduling co-design electrical equipment.
Description
Technical field
The present invention relates to the contactor of a kind of integrated electronic type protector function and structure, belong to contactor field.
Background technology
Contactor is control apparatus, thermal relay and motor protector belong to protective device, in the magnetic starter product that current contactor and thermal relay or motor protector combine, all contactors and thermal relay or motor protector are all independent installations, current extensive application be the magnetic starter that contactor and thermal relay combine, this electrical contact and thermal relay are independently installed separately, add housing and form the very large electrical equipment of volume, because the protective feature of thermal relay is not mated with motor heat characteristic, cannot realize protecting accurately, even if therefore installed thermal relay, still frequent motor damage, its current sensor of various motor protectors of current application is arranged in protector, the volume of protector is obviously larger, and protector and contactor are independently installed separately, cause the problem that erection space and volume are very large equally.
For this reason; the present invention proposes electronic type protection to become structure-integrated installation with contactor body; current sensor is arranged on the stationary contact bridge of contactor main circuit; adjusting of the various instruction of electronic protector and setting current is very clear all on the contactor; form the contactor of band protector function; there is contactor integrated electronic type protector function, structure unified, compact with production application feature easily, realize the miniaturization of load control and scheduling co-design electrical equipment.
Summary of the invention
The object of the present invention is to provide the contactor of a kind of integrated electronic type protector function and structure, electronic type protection is become structure-integrated installation with contactor body by this contactor, current sensor is enclosed within the stationary contact bridge of probe of contactor arc quenching system, electronic protector to be arranged on contactor housing or any proper site in housing, form the contactor of band protector function, in electronic protector, single-chip computer control system detects three current sensor output, when failure judgement occurs and load is overheated, single-chip computer control system turns off coil circuit by the normally closed interlock of the middle-size and small-size relay of electronic protector, contactor cut-offs main circuit, the safe operation of proof load and circuit, there is contactor integrated electronic type protector function, structure is unified, compact with production application feature easily, realize the miniaturization of load control and scheduling co-design electrical equipment.
The object of the present invention is achieved like this, and it comprises probe of contactor arc quenching system, Contactor Magnetic System, contactor coil, stationary contact bridge, current sensor and electronic protector, it is characterized in that: described current sensor is enclosed within the stationary contact bridge of probe of contactor arc quenching system, the output of described current sensor is connected with single-chip computer control system in electronic protector, two ends of power supply connect with two inputs of power supply in electronic protector, in electronic protector power supply first, two outputs connect with the power input of single-chip computer control system in electronic protector respectively, the first end of power supply receives one end of the normally closed interlock of the miniature relay of single-chip computer control system in electronic protector, the other end of the normally closed interlock of miniature relay connects with one end of contactor coil in Contactor Magnetic System, second end of power supply connects with the other end of contactor coil, electronic protector is arranged on the housing of described contactor.
In an embodiment of the present invention, described current sensor comprises the first current sensor, the second current sensor and the 3rd current sensor; This first and second and three current sensors be enclosed within the three-phase stationary contact bridge of probe of contactor arc quenching system respectively; two outputs of the first current sensor receive the 3rd A/D mouth and the 4th A/D mouth of single-chip computer control system in electronic protector; two outputs of the second current sensor receive the 5th A/D mouth the 6th and the A/D mouth of single-chip computer control system in electronic protector, and two outputs of the 3rd current sensor receive A/D mouth and the 8th A/D mouth of single-chip computer control system the 7th in electronic protector.
In an embodiment of the present invention, described electronic protector is arranged on the inside of the housing of described contactor.
In an embodiment of the present invention, described current sensor comprises the first current sensor and the second current sensor, and this first and second current sensor is enclosed within any two-phase stationary contact bridge of probe of contactor arc quenching system respectively.
In an embodiment of the present invention, the power supply in described electronic protector is non-insulating power supply.
In an embodiment of the present invention; in described electronic protector, two inputs of power supply receive one end of power supply and a tap of coil respectively, and in electronic protector, two outputs of power supply connect with the power input of single-chip computer control system in electronic protector respectively.
In an embodiment of the present invention, described miniature relay is electronic power switch device.
The present invention compared with prior art, electronic type protection is become structure-integrated installation with contactor body, form the contactor of band protector function, in electronic protector, single-chip computer control system detects current sensor output, when failure judgement occurs and load is overheated, single-chip computer control system turns off coil circuit by the normally closed interlock of the middle-size and small-size relay of electronic protector, contactor cut-offs main circuit, the safe operation of proof load and circuit, there is contactor integrated electronic type protector function, structure is unified, compact with production application feature easily, realize the miniaturization of load control and scheduling co-design electrical equipment.
Accompanying drawing explanation
Figure 1A is the circuit diagram of the embodiment of the present invention one.
Figure 1B is that schematic diagram is looked on the right side of the embodiment of the present invention one.
Fig. 2 A is the circuit diagram of the embodiment of the present invention two.
Fig. 2 B is that schematic diagram is looked on the right side of the embodiment of the present invention two.
Fig. 3 A is the circuit diagram of the embodiment of the present invention three.
Fig. 3 B is that schematic diagram is looked on the right side of the embodiment of the present invention three.
Fig. 4 A is the circuit diagram of the embodiment of the present invention four.
Fig. 4 B is that schematic diagram is looked on the right side of the embodiment of the present invention four.
Fig. 5 is the circuit diagram of the contactor non-isolated control power supply of the embodiment of the present invention five.
Fig. 6 is the circuit diagram of the built-in control power supply of contactor of the embodiment of the present invention six.
Fig. 7 is the circuit diagram of the electronic power switch device of single-chip computer control system in the contactor electronic protector of the embodiment of the present invention seven.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described further.
As shown in Figure 1A, the contactor of a kind of integrated electronic type protector function and structure, comprises probe of contactor arc quenching system A, Contactor Magnetic System B, contactor coil C, stationary contact bridge H, current sensor D and electronic protector G, it is characterized in that: described current sensor D is enclosed within the stationary contact bridge H of probe of contactor arc quenching system A, the output of described current sensor D is connected with single-chip computer control system F in electronic protector G, two ends of power supply U connect with two inputs of power supply E in electronic protector G, in electronic protector G power supply E first, two outputs connect with the power input of single-chip computer control system F in electronic protector G respectively, the first end of power supply U receives one end of the normally closed interlock K of the miniature relay of single-chip computer control system F in electronic protector G, the other end of the normally closed interlock K of miniature relay connects with one end of contactor coil C in Contactor Magnetic System B, second end of power supply U connects with the other end of contactor coil C, electronic protector G is arranged on the housing M of described contactor.
Be noted that the D of current sensor described in the present embodiment can comprise the first current sensor D1, the second current sensor D2 and the 3rd current sensor D3; But this current sensor is not limited thereto, it also can be two.Electronic type protection is become structure-integrated installation with contactor body by this contactor, please refer to Figure 1B, in figure this first, two and three current sensors are enclosed within the three-phase stationary contact bridge H of probe of contactor arc quenching system A respectively, two outputs of the first current sensor D1 receive the 3rd A/D mouth and the 4th A/D mouth of single-chip computer control system F in electronic protector G, two outputs of the second current sensor D2 receive the 5th A/D mouth the 6th and the A/D mouth of single-chip computer control system F in electronic protector G, two outputs of the 3rd current sensor D3 receive A/D mouth and the 8th A/D mouth of single-chip computer control system F the 7th in electronic protector G.In the present embodiment, three current sensors are enclosed within the three-phase stationary contact bridge of probe of contactor arc quenching system respectively; electronic protector is arranged on any proper site on contactor housing; form the contactor of band protector function; in electronic protector, single-chip computer control system detects three current sensor output; when failure judgement occurs and load is overheated; single-chip computer control system turns off coil circuit by the normally closed interlock of the middle-size and small-size relay of electronic protector; contactor cut-offs main circuit, the safe operation of proof load and circuit.
As shown in Figure 2 A and 2B, the contactor of a kind of integrated electronic type protector function and structure is only that electronic protector is arranged on any proper site in contactor housing with the difference of embodiment one.
As shown in figs.3 a and 3b, the contactor of a kind of integrated electronic type protector function and structure, comprises probe of contactor arc quenching system A, Contactor Magnetic System B, contactor coil C, stationary contact bridge H, current sensor D and electronic protector G;
It is characterized in that: current sensor D1, current sensor D2 is enclosed within any two-phase stationary contact bridge H of probe of contactor arc quenching system A respectively, two outputs of current sensor D1 receive the 3rd A/D mouth 3 and the 4th A/D mouth 4 of single-chip computer control system F in electronic protector G, two outputs of current sensor D2 receive the 5th A/D mouth 5 and the 6th A/D mouth 6 of single-chip computer control system F in electronic protector G, two ends of power supply U connect with two inputs of power supply E in electronic protector G, in electronic protector G two outputs of power supply E respectively with the power input 1 of single-chip computer control system F in electronic protector G, 2 connect, one end of power supply U receives one end 10 of the normally closed interlock K of the miniature relay of single-chip computer control system F in electronic protector G again, the other end 9 of the normally closed interlock K of miniature relay and the one end of contactor coil C in Contactor Magnetic System B, the other end of power supply U connects with the other end of contactor coil C, electronic protector G is arranged on any proper site on contactor housing M.
Electronic type protection is become structure-integrated installation with contactor body by this contactor, two current sensors are enclosed within any two-phase stationary contact bridge of probe of contactor arc quenching system respectively, electronic protector is arranged on any proper site on contactor housing, form the contactor of band protector function, in electronic protector, single-chip computer control system detects two current sensor output, when failure judgement occurs and load is overheated, single-chip computer control system turns off coil circuit by the normally closed interlock of the middle-size and small-size relay of electronic protector, contactor cut-offs main circuit, the safe operation of proof load and circuit.
As illustrated in figures 4 a and 4b, the contactor of a kind of integrated electronic type protector function and structure is only that electronic protector is arranged on any proper site in contactor housing with the difference of embodiment three.
As shown in Figure 5; power supply E in the electronic protector G of the contactor of a kind of integrated electronic type protector function and structure; two ends of power supply U connect with two inputs of power supply E in electronic protector G; in electronic protector G, two outputs of power supply E connect with the power input 1,2 of single-chip computer control system F in electronic protector G respectively, and in electronic protector G, power supply E is non-insulating power supply.
As shown in Figure 6; power supply E in the electronic protector G of the contactor of a kind of integrated electronic type protector function and structure; in electronic protector G, two inputs of power supply E receive one end of power supply U and a tap of coil respectively; in electronic protector G, two outputs of power supply E connect with the power input 1,2 of single-chip computer control system F in electronic protector G respectively; in electronic protector G, the energy of power supply E is from coil sections in contactor coil; control there is no step-down link in power supply E, belong to contactor built-in power.
As shown in Figure 7; the electronic power switch device K of single-chip computer control system F in the contactor electronic protector G of a kind of integrated electronic type protector function and structure; one end of power supply U receive the electronic power switch device K of single-chip computer control system F in electronic protector (G) one end 10; the other end 9 of electronic power switch device K connects with one end of contactor coil C in Contactor Magnetic System B, and the other end of power supply U connects with the other end of contactor coil C.
When requiring contactor coil to be energized; single-chip computer control system controls electronic power switch break-over of device; when failure judgement occurs and load is overheated; single-chip computer control system turns off coil circuit by electronic power switch device in electronic protector; contactor cut-offs main circuit, the safe operation of proof load and circuit.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (6)
1. a contactor for integrated electronic type protector function and structure, comprises probe of contactor arc quenching system (A), Contactor Magnetic System (B), contactor coil (C), stationary contact bridge (H), current sensor (D) and electronic protector (G);
It is characterized in that: described current sensor (D) is enclosed within the stationary contact bridge (H) of probe of contactor arc quenching system (A), the output of described current sensor (D) is connected with single-chip computer control system (F) in electronic protector (G), two ends of power supply (U) connect with two inputs of power supply (E) in electronic protector (G), first of the middle power supply (E) of electronic protector (G), two outputs connect with the power input of single-chip computer control system (F) in electronic protector (G) respectively, the first end of power supply (U) receives one end of the normally closed interlock (K) of the miniature relay of single-chip computer control system (F) in electronic protector (G), the other end of the normally closed interlock (K) of miniature relay connects with one end of contactor coil (C) in Contactor Magnetic System (B), second end of power supply (U) connects with the other end of contactor coil (C), electronic protector (G) arranges on the housing (M) of described contactor,
Described current sensor (D) comprises the first current sensor (D1), the second current sensor (D2) and the 3rd current sensor (D3), this is first years old, two and three current sensors are enclosed within the three-phase stationary contact bridge (H) of probe of contactor arc quenching system (A) respectively, two outputs of the first current sensor (D1) receive the 3rd A/D mouth and the 4th A/D mouth of single-chip computer control system (F) in electronic protector (G), two outputs of the second current sensor (D2) receive the 5th A/D mouth the 6th and the A/D mouth of single-chip computer control system (F) in electronic protector (G), two outputs of the 3rd current sensor (D3) receive A/D mouth and the 8th A/D mouth of single-chip computer control system (F) the 7th in electronic protector (G).
2. the contactor of integrated electronic type protector function according to claim 1 and structure, is characterized in that: described electronic protector (G) is arranged on the inside of the housing (M) of described contactor.
3. the contactor of integrated electronic type protector function according to claim 1 and 2 and structure; it is characterized in that: described current sensor (D) comprises the first current sensor and the second current sensor, this first and second current sensor is enclosed within any two-phase stationary contact bridge of probe of contactor arc quenching system respectively.
4. the contactor of integrated electronic type protector function according to claim 1 and 2 and structure, is characterized in that: the power supply (E) in described electronic protector (G) is non-insulating power supply.
5. the contactor of integrated electronic type protector function according to claim 4 and structure; it is characterized in that: in described electronic protector (G), two inputs of power supply (E) receive one end of power supply (U) and a tap of coil respectively, in electronic protector (G), two outputs of power supply (E) connect with the power input of single-chip computer control system (F) in electronic protector (G) respectively.
6. the contactor of integrated electronic type protector function according to claim 1 and structure, is characterized in that: described miniature relay is electronic power switch device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051203.9A CN103107507B (en) | 2013-02-16 | 2013-02-16 | The contactor of integrated electronic type protector function and structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310051203.9A CN103107507B (en) | 2013-02-16 | 2013-02-16 | The contactor of integrated electronic type protector function and structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103107507A CN103107507A (en) | 2013-05-15 |
| CN103107507B true CN103107507B (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310051203.9A Expired - Fee Related CN103107507B (en) | 2013-02-16 | 2013-02-16 | The contactor of integrated electronic type protector function and structure |
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| Country | Link |
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| CN (1) | CN103107507B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0509391A1 (en) * | 1991-04-15 | 1992-10-21 | Heinemann Electric (Europe) S.A. | Protection system for electric circuits |
| CN100459012C (en) * | 2005-09-27 | 2009-02-04 | 福州大学 | Combined type intelligent alternating-current control and protector |
| CN201256127Y (en) * | 2008-09-22 | 2009-06-10 | 福建森达电气有限公司 | High price/performance ratio DC contactor |
| CN102054632A (en) * | 2011-01-14 | 2011-05-11 | 福州大学 | Split-phase type intelligent low-voltage double-breakpoint integrated electrical appliance with quick electromagnetism repulsive force mechanism |
| CN203166456U (en) * | 2013-02-16 | 2013-08-28 | 福州大学 | Contactor integrating function and structure of electronic type protector |
-
2013
- 2013-02-16 CN CN201310051203.9A patent/CN103107507B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0509391A1 (en) * | 1991-04-15 | 1992-10-21 | Heinemann Electric (Europe) S.A. | Protection system for electric circuits |
| CN100459012C (en) * | 2005-09-27 | 2009-02-04 | 福州大学 | Combined type intelligent alternating-current control and protector |
| CN201256127Y (en) * | 2008-09-22 | 2009-06-10 | 福建森达电气有限公司 | High price/performance ratio DC contactor |
| CN102054632A (en) * | 2011-01-14 | 2011-05-11 | 福州大学 | Split-phase type intelligent low-voltage double-breakpoint integrated electrical appliance with quick electromagnetism repulsive force mechanism |
| CN203166456U (en) * | 2013-02-16 | 2013-08-28 | 福州大学 | Contactor integrating function and structure of electronic type protector |
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| Publication number | Publication date |
|---|---|
| CN103107507A (en) | 2013-05-15 |
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Granted publication date: 20160330 Termination date: 20190216 |