CN103107507A - Contactor integrating function and structure of electronic type protector - Google Patents
Contactor integrating function and structure of electronic type protector Download PDFInfo
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- CN103107507A CN103107507A CN2013100512039A CN201310051203A CN103107507A CN 103107507 A CN103107507 A CN 103107507A CN 2013100512039 A CN2013100512039 A CN 2013100512039A CN 201310051203 A CN201310051203 A CN 201310051203A CN 103107507 A CN103107507 A CN 103107507A
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- contactor
- protector
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- current sensor
- power supply
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Abstract
The invention relates to a contactor integrating function and structure of an electronic type protector. The contactor integrating function and structure of the electronic type protector comprises a contactor contact terminal arc extinguishing system, a contactor magnetism system, a contactor coil, a static contact bridge, electric current transducers and the electronic type protector. The three electric current transducers are respectively sleeved on the three-phase static contact bridge of the contactor contact terminal arc extinguishing system, and the electronic type protector is installed on a contactor shell body or any position in the shell body. The working condition of a load is judged by the electronic type protector according to signals output by the electric current transducers. A circuit of a coil is cut by a normally closed contact terminal of a small size relay when the circuit is needed to be cut, and the contactor cuts a main circuit. The contactor integrating function and structure of the electronic type protector has the advantages of being capable of integrating the function of the electronic type protector, unified and compact in structure, convenient to manufacture and apply and capable of achieving control of load and miniaturization of a protection electrical appliance.
Description
Technical field
The present invention relates to the contactor of a kind of integrated electronic type protector function and structure, belong to the contactor field.
Background technology
contactor is control apparatus, thermal relay and motor protector are to belong to protective device, in the magnetic starter product of contactor and thermal relay or motor protector combination at present, all contactors and thermal relay or motor protector are all independent the installations, what widely apply at present is the magnetic starter of contactor and thermal relay combination, this electrical contact and thermal relay are independently installed separately, add housing and form the very large electrical equipment of volume, because protective feature and the motor heat characteristic of thermal relay are not mated, can't realize protecting accurately, even therefore thermal relay has been installed, still frequent motor damage, its current sensor of various motor protectors of using at present is arranged in protector, the volume of protector is obviously larger, and the independent installation separately of protector and contactor, cause equally the very large problem of erection space and volume.
For this reason; the present invention proposes the electronic type protection is become structure-integrated installation with the contactor body; current sensor is arranged on the stationary contact bridge of contactor main circuit; adjusting of the various indications of electronic protector and setting current is all very clear on contactor; formation is with the contactor of protector function; have contactor integrated electronic type protector function, structure unification, compactness and production application characteristics easily, realize the miniaturization of load control and protective device.
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, this contactor becomes structure-integrated installation with the electronic type protection with the contactor body, current sensor is enclosed within on the stationary contact bridge of probe of contactor arc quenching system, electronic protector is arranged on the contactor housing or the interior any proper site of housing, formation is with the contactor of protector function, in electronic protector, single-chip computer control system detects three current sensor output signals, occur and load when overheated in failure judgement, single-chip computer control system turn-offs 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, has contactor integrated electronic type protector function, structure is unified, compactness and production application be characteristics easily, realize the miniaturization of load control and protective device.
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 on the stationary contact bridge of probe of contactor arc quenching system, and the output of described current sensor is connected with single-chip computer control system in electronic protector, in two ends of power supply and electronic protector, two inputs of power supply join, in electronic protector first of power supply, two outputs respectively with electronic protector in the power input of single-chip computer control system join, the first end of power supply is received an end of the normally closed interlock of the miniature relay of single-chip computer control system in electronic protector, in the other end of the normally closed interlock of miniature relay and Contactor Magnetic System, an end of contactor coil joins, the second end of power supply and the other end of contactor coil join, electronic protector arranges 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 respectively on the three-phase stationary contact bridge of probe of contactor arc quenching system; two outputs of the first current sensor are received 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 are received the 5th A/D mouth the 6th and A/D mouth of single-chip computer control system in electronic protector, and two outputs of the 3rd current sensor are received 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 respectively on any two-phase stationary contact bridge of probe of contactor arc quenching system.
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; two of power supply taps that input is received respectively an end and the coil of power supply in described electronic protector, in electronic protector two of power supply outputs respectively with electronic protector in the power input of single-chip computer control system join.
In an embodiment of the present invention, described miniature relay is the electronic power switch device.
the present invention compared with prior art, the electronic type protection is become structure-integrated installation with the contactor body, formation is with the contactor of protector function, in electronic protector, single-chip computer control system detects the current sensor output signal, occur and load when overheated in failure judgement, single-chip computer control system turn-offs 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, has contactor integrated electronic type protector function, structure is unified, compactness and production application be characteristics easily, realize the miniaturization of load control and protective device.
Description of drawings
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 non-isolated controlling power supply of the contactor of the embodiment of the present invention five.
Fig. 6 is the circuit diagram of the built-in control power supply of the 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 on the stationary contact bridge H of probe of contactor arc quenching system A, and the output of described current sensor D is connected with single-chip computer control system F in electronic protector G, in two ends of power supply U and electronic protector G, two inputs of power supply E join, in electronic protector G first of power supply E, two outputs respectively with electronic protector G in the power input of single-chip computer control system F join, the first end of power supply U is received the end of normally closed interlock K of the miniature relay of single-chip computer control system F in electronic protector G, in the other end of the normally closed interlock K of miniature relay and Contactor Magnetic System B, the end of contactor coil C joins, the second end of power supply U and the other end of contactor coil C join, electronic protector G arranges 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, and it can be also two.this contactor becomes structure-integrated installation with the electronic type protection with the contactor body, please refer to Figure 1B, in figure this first, two and three current sensors are enclosed within respectively on the three-phase stationary contact bridge H of probe of contactor arc quenching system A, two outputs of the first current sensor D1 are received 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 are received the 5th A/D mouth the 6th and A/D mouth of single-chip computer control system F in electronic protector G, two outputs of the 3rd current sensor D3 are received 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 respectively on the three-phase stationary contact bridge of probe of contactor arc quenching system; electronic protector is arranged on any proper site on the contactor housing; formation is with the contactor of protector function; in electronic protector, single-chip computer control system detects three current sensor output signals; occur and load when overheated in failure judgement; single-chip computer control system turn-offs 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 Fig. 2 A and 2B, the contactor of a kind of integrated electronic type protector function and structure, with the difference of embodiment one be only that electronic protector is arranged on any proper site in the contactor housing.
As shown in Fig. 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 respectively on any two-phase stationary contact bridge H of probe of contactor arc quenching system A, two outputs of current sensor D1 are received 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 are received the 5th A/D mouth 5 and the 6th A/D mouth 6 of single-chip computer control system F in electronic protector G, in two ends of power supply U and electronic protector G, two inputs of power supply E join, in electronic protector G two of power supply E outputs respectively with electronic protector G in the power input 1 of single-chip computer control system F, 2 join, the end of power supply U is received the end 10 of normally closed interlock K of the miniature relay of single-chip computer control system F in electronic protector G again, the end of contactor coil C in the other end 9 of the normally closed interlock K of miniature relay and Contactor Magnetic System B, the other end of the other end of power supply U and contactor coil C joins, electronic protector G is arranged on the upper any proper site of contactor housing M.
this contactor becomes structure-integrated installation with the electronic type protection with the contactor body, two current sensors are enclosed within respectively on any two-phase stationary contact bridge of probe of contactor arc quenching system, electronic protector is arranged on any proper site on the contactor housing, formation is with the contactor of protector function, in electronic protector, single-chip computer control system detects two current sensor output signals, occur and load when overheated in failure judgement, single-chip computer control system turn-offs 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 Fig. 4 A and 4B, the contactor of a kind of integrated electronic type protector function and structure, with the difference of embodiment three be only that electronic protector is arranged on any proper site in the contactor housing.
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; in two ends of power supply U and electronic protector G, two inputs of power supply E join; in electronic protector G two of power supply E outputs respectively with electronic protector G in the power input 1,2 of single-chip computer control system F join, 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; two of power supply E taps that input is received respectively an end and the coil of power supply U in electronic protector G; in electronic protector G two of power supply E outputs respectively with electronic protector G in the power input 1,2 of single-chip computer control system F join; in electronic protector G, the energy of power supply E is from coil sections in contactor coil; controlling in power supply E does not have the step-down link, belongs to the 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 of power supply U terminate to single-chip computer control system F in electronic protector (G) electronic power switch device K an end 10; in the other end 9 of electronic power switch device K and Contactor Magnetic System B, the end of contactor coil C joins, and the other end of the other end of power supply U and contactor coil C joins.
When requiring the contactor coil energising; single-chip computer control system is controlled the electronic power switch break-over of device; occur and load when overheated in failure judgement; single-chip computer control system turn-offs 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 of doing according to technical solution of the present invention when the function that produces does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (7)
1. the contactor of an integrated electronic type protector function and structure, comprise 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 on the stationary contact bridge (H) of probe of contactor arc quenching system (A), and the output of described current sensor (D) is connected with single-chip computer control system (F) in electronic protector (G), in two ends of power supply (U) and electronic protector (G), two inputs of power supply (E) join, first of the middle power supply (E) of electronic protector (G), two outputs respectively with electronic protector (G) in the power input of single-chip computer control system (F) join, the first end of power supply (U) is received an end of the normally closed interlock (K) of the miniature relay of single-chip computer control system (F) in electronic protector (G), in the other end of the normally closed interlock of miniature relay (K) and Contactor Magnetic System (B), an end of contactor coil (C) joins, the other end of the second end of power supply (U) and contactor coil (C) joins, electronic protector (G) arranges on the housing (M) of described contactor.
2. the contactor of integrated electronic type protector function according to claim 1 and structure, it is characterized in that: 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 respectively on the three-phase stationary contact bridge (H) of probe of contactor arc quenching system (A), two outputs of the first current sensor (D1) are received 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) are received the 5th A/D mouth the 6th and A/D mouth of single-chip computer control system (F) in electronic protector (G), two outputs of the 3rd current sensor (D3) are received A/D mouth and the 8th A/D mouth of single-chip computer control system (F) the 7th in electronic protector (G).
3. the contactor of integrated electronic type protector function according to claim 1 and structure, it is characterized in that: described electronic protector (G) is arranged on the inside of the housing (M) of described contactor.
4. the contactor of according to claim 1 or 3 described integrated electronic type protector functions and structure; it is characterized in that: described current sensor (D) comprises the first current sensor and the second current sensor, and this first and second current sensor is enclosed within respectively on any two-phase stationary contact bridge of probe of contactor arc quenching system.
According to claim 1 to 4 any one described integrated electronic type protector function and the contactor of structure, it is characterized in that: the power supply (E) in described electronic protector (G) is non-insulating power supply.
6. the contactor of integrated electronic type protector function according to claim 6 and structure; it is characterized in that: in the tap that two inputs of power supply (E) are received respectively an end and the coil of power supply (U) in described electronic protector (G), electronic protector (G), two outputs of power supply (E) join with the power input of the middle single-chip computer control system (F) of electronic protector (G) respectively.
7. the contactor of integrated electronic type protector function according to claim 1 and structure, it is characterized in that: described miniature relay is the 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 true CN103107507A (en) | 2013-05-15 |
| CN103107507B 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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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 |
|---|---|
| CN103107507B (en) | 2016-03-30 |
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Granted publication date: 20160330 Termination date: 20190216 |