CN220456313U - Auxiliary contact of contactor - Google Patents

Abstract

The utility model relates to an auxiliary contact of a contactor, which comprises a shell, a linkage rod, a normally closed fixed contact, a normally open fixed contact, a normally closed movable contact bridge and a normally open movable contact bridge, wherein the linkage rod is arranged in the shell in a sliding manner, the normally closed fixed contact is arranged in the shell, the normally open movable contact bridge is arranged on the linkage rod in a linkage manner and matched with the normally closed fixed contact, the normally open movable contact bridge is arranged on the linkage rod in a linkage manner and matched with the normally open fixed contact, a torsion spring is arranged in the shell corresponding to the linkage rod, a first torsion arm of the torsion spring is abutted against one end of the linkage rod, a second torsion arm of the torsion spring is abutted against the shell, and a spring is arranged between the normally closed movable contact bridge and the shell. The utility model has the advantages of simple structure, stable and reliable performance, high assembly efficiency and sensitive action.

Description

Auxiliary contact of contactor

Technical Field

The utility model relates to a contactor, in particular to an auxiliary contact of the contactor.

Background

Currently, contactors are classified into alternating current contactors (voltage AC) and direct current contactors (voltage DC), which are applied to electric power, distribution and power utilization. Contactors are broadly defined as electrical appliances that utilize current flowing through a coil to generate a magnetic field in industrial electricity to close contacts to achieve control of a load. The side part of the contactor is generally connected with a side-hanging auxiliary contact, and the side-hanging auxiliary contact is a side-mounting auxiliary contact module for the contactor, is arranged on two sides of the switch body and is used for helping to transmit action state signals of the switch or form electrical interlocking among the switches. The existing auxiliary contact is low in opening and closing speed and low in assembling efficiency, the working performance of the auxiliary contact is unreliable due to the fact that the action is not sensitive enough, the internal structural design of the auxiliary contact is complex, and the auxiliary contact is complex to assemble.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide the auxiliary contact of the contactor, which has the advantages of simple structure, stable and reliable performance, high assembly efficiency and sensitive action.

In order to achieve the purpose, the auxiliary contact of the contactor comprises a shell, a linkage rod arranged in the shell in a sliding manner, a normally closed fixed contact arranged in the shell, a normally open fixed contact arranged in the shell, a normally closed movable contact bridge which is arranged on the linkage rod in a linkage manner and matched with the normally closed fixed contact, and a normally open movable contact bridge which is arranged on the linkage rod in a linkage manner and matched with the normally open fixed contact, wherein a torsion spring is arranged in the shell corresponding to the linkage rod, a first torsion arm of the torsion spring is abutted against one end of the linkage rod, a second torsion arm of the torsion spring is abutted against the shell, and a spring is arranged between the normally closed movable contact bridge and the shell.

The beneficial effects of the structure are as follows: the spring is arranged between the shell and the normally closed movable contact bridge, the contact pressure of the normally closed movable contact bridge can be increased by the spring, meanwhile, the action speed of the linkage rod can be increased, the aim of increasing the opening and closing speed of the auxiliary contact can be fulfilled, the torsion spring can drive the linkage rod to act, the linkage rod can be driven to act through the torsion spring and the spring, the action of the linkage rod is more sensitive, the opening and closing speed of the auxiliary contact can be increased, the action sensitivity of the auxiliary contact is higher, and the working reliability is higher. The structure design is simpler, and the assembly is more convenient. Therefore, the auxiliary contact has the advantages of simple structure, stable and reliable performance, high assembly efficiency and sensitive action.

Particularly, the casing in correspond first torsion arm department and be provided with the guide way, gangbar one end have with first torsion arm matched with cambered surface bellying, first torsion arm pass the guide way and contradict on cambered surface bellying, cambered surface bellying one side on set up with first torsion arm spacing complex spacing piece. The guide slot in the shell can play a guide role on the first torsion arm, so that the torsion spring and the shell are convenient to assemble, and the first torsion arm is abutted on the cambered surface protruding part, so that the torsion spring and the linkage rod can be more reliably driven.

Particularly, the shell in be provided with the reference column, the torsional spring block on the reference column, the week wall of reference column on be provided with a plurality of sand grip with torsional spring matched with respectively. The torsional spring block is on the reference column to be convenient for the assembly of torsional spring and casing, assembly efficiency is higher.

Particularly, the gangbar on be provided with the guiding hole that is used for placing normally closed movable contact bridge, the casing in be provided with the guide stopper that alternates in the guiding hole, one end of spring conflict on normally closed movable contact bridge, the other end block of spring is on the guide stopper. The guide limiting block can play a guide role on the linkage rod, the reliable action of the linkage rod can be guaranteed, and the spring is clamped between the guide limiting block and the normally closed movable contact bridge, so that the spring, the shell and the normally closed movable contact bridge can be conveniently assembled, and the assembly efficiency is higher.

Particularly, the linkage rod is provided with a containing hole for placing a normally-started contact bridge, a contact spring is arranged in the containing hole, one end of the contact spring is abutted against the normally-opened contact bridge, and the other end of the contact spring is abutted against the inner wall of the containing hole. The contact spring can increase the contact pressure of the normally-started contact bridge, and can ensure that the normally-started contact bridge can reliably contact with the normally-opened static contact, thereby being beneficial to improving the working reliability of the auxiliary contact.

Particularly, two clamping plates are arranged in the shell corresponding to two sides of the normally closed static contact, a clamping groove for placing the normally closed static contact is formed between the two clamping plates, the normally closed static contact is clamped in the clamping groove, and protruding points which are abutted against one side of the clamping plates are arranged on the normally closed static contact. The normally closed stationary contact head is clamped between the two clamping plates of the shell, so that the normally closed stationary contact and the shell are conveniently assembled, and the assembly efficiency is higher.

Particularly, the shell comprises a base and a cover plate arranged on the base, two hooks connected with the contactor are arranged at one end of the cover plate, through holes matched with the two hooks are respectively arranged on the base, and the two hooks respectively penetrate through the through holes and are exposed out of the base. The cover plate is provided with the hooks of the contactor, so that the auxiliary contact and the contactor are convenient to assemble, and the assembling efficiency is higher.

Particularly, a plurality of riveting columns are arranged in the cover plate, riveting holes matched with the riveting columns are formed in the base, and the riveting columns penetrate through the riveting holes. The riveting columns on the cover plate can be connected in the riveting holes through hot riveting, so that the assembly of the base and the cover plate is convenient, and the assembly is more convenient.

Specifically, two hooks connected with the contactor are respectively arranged at one end of the base. The clamping hooks which are clamped with the contactor are arranged on the base, so that the auxiliary contact and the contactor are convenient to assemble, and the assembling efficiency is higher.

Drawings

Fig. 1 is a perspective view of an embodiment of the present utility model.

Fig. 2 is an exploded view of an embodiment of the present utility model.

Fig. 3 is a front view of an internal structure of an embodiment of the present utility model.

Detailed Description

As shown in fig. 1 to 3, the embodiment of the utility model is an auxiliary contact of a contactor, which comprises a shell 10, a linkage rod 11 slidably arranged in the shell 10, a normally closed static contact 12 arranged in the shell 10, a normally open static contact 13 arranged in the shell 10, a normally closed movable contact bridge 14 which is arranged on the linkage rod 11 in a linkage way and matched with the normally closed static contact 12, and a normally open movable contact bridge 15 which is arranged on the linkage rod 11 in a linkage way and matched with the normally open static contact 12, wherein a torsion spring 16 is arranged in the shell 10 corresponding to the linkage rod 11, a first torsion arm 161 of the torsion spring 16 is abutted against one end of the linkage rod 11, a second torsion arm 162 of the torsion spring 16 is abutted against the shell 10, and a spring 17 is arranged between the normally closed movable contact bridge 14 and the shell 10. The shell 10 in correspond first torsion arm 161 department be provided with guide way 101, gangbar 11 one end have with first torsion arm 161 matched with cambered surface bellying 111, first torsion arm 161 pass guide way 101 and conflict on cambered surface bellying 111, cambered surface bellying 111 one side on set up with first torsion arm 161 spacing complex spacing piece 112. The guide slot in the shell can play a guide role on the first torsion arm, so that the torsion spring and the shell are convenient to assemble, and the first torsion arm is abutted on the cambered surface protruding part, so that the torsion spring and the linkage rod can be more reliably driven. The shell 10 is internally provided with a positioning column 102, the torsion spring 16 is clamped on the positioning column 102, and a plurality of raised strips 103 matched with the torsion spring 16 are respectively arranged on the peripheral wall of the positioning column 102. The torsional spring block is on the reference column to be convenient for the assembly of torsional spring and casing, assembly efficiency is higher. The linkage rod 11 on be provided with the guiding hole 113 that is used for placing normally closed movable contact bridge 14, casing 10 in be provided with the guide stopper 104 that alternates in guiding hole 113, one end of spring 17 contradict on normally closed movable contact bridge 14, the other end block of spring 17 is on guide stopper 104. The guide limiting block can play a guide role on the linkage rod, the reliable action of the linkage rod can be guaranteed, and the spring is clamped between the guide limiting block and the normally closed movable contact bridge, so that the spring, the shell and the normally closed movable contact bridge can be conveniently assembled, and the assembly efficiency is higher. The linkage rod 11 is provided with a containing hole 114 for placing the normally-operated contact bridge 15, a contact spring 18 is arranged in the containing hole 114, one end of the contact spring 18 is abutted against the normally-opened contact bridge 15, and the other end of the contact spring 18 is abutted against the inner wall of the containing hole 114. The contact spring can increase the contact pressure of the normally-started contact bridge, and can ensure that the normally-started contact bridge can reliably contact with the normally-opened static contact, thereby being beneficial to improving the working reliability of the auxiliary contact. Two clamping plates 105 are arranged in the shell 10 corresponding to two sides of the normally closed fixed contact 12, a clamping groove 1050 for placing the normally closed fixed contact 12 is formed between the two clamping plates 105, the normally closed fixed contact 12 is clamped in the clamping groove 1050, and a salient point 121 which is abutted against one side of the clamping plate 105 is arranged on the normally closed fixed contact 12. The normally closed stationary contact head is clamped between the two clamping plates of the shell, so that the normally closed stationary contact and the shell are conveniently assembled, and the assembly efficiency is higher.

As shown in fig. 1 and 2, the housing 10 includes a base 1000, and a cover plate 1001 disposed on the base 1000, wherein two hooks 1002 connected with a contactor are disposed on one end of the cover plate 1001, through holes 1003 matching with the two hooks 1002 are disposed on the base 1000, and the two hooks 1002 respectively pass through the through holes 1003 and are exposed outside the base 1000. The cover plate is provided with the hooks of the contactor, so that the auxiliary contact and the contactor are convenient to assemble, and the assembling efficiency is higher. Two hooks 1004 connected with the contactor are respectively arranged on one end of the base 1000. The clamping hooks which are clamped with the contactor are arranged on the base, so that the auxiliary contact and the contactor are convenient to assemble, and the assembling efficiency is higher. The cover plate 1001 is provided with a plurality of riveting columns 1005, the base 1000 is provided with riveting holes 1006 matching with the plurality of riveting columns 1005, and the riveting columns 1005 are arranged in the riveting holes 1006 in a penetrating manner. The riveting columns on the cover plate can be connected in the riveting holes through hot riveting, so that the assembly of the base and the cover plate is convenient, and the assembly is more convenient.

The spring is arranged between the shell and the normally closed movable contact bridge, the contact pressure of the normally closed movable contact bridge can be increased by the spring, meanwhile, the action speed of the linkage rod can be increased, the aim of increasing the opening and closing speed of the auxiliary contact can be fulfilled, the torsion spring can drive the linkage rod to act, the linkage rod can be driven to act through the torsion spring and the spring, the action of the linkage rod is more sensitive, the opening and closing speed of the auxiliary contact can be increased, the action sensitivity of the auxiliary contact is higher, and the working reliability is higher. The structure design is simpler, and the assembly is more convenient. Therefore, the auxiliary contact has the advantages of simple structure, stable and reliable performance, high assembly efficiency and sensitive action.

Claims (9)

1. The utility model provides an auxiliary contact of contactor, includes casing, slip setting are in the gangbar of casing, the normal close stationary contact of setting in the casing, the normal open stationary contact of setting in the casing, linkage setting are on the gangbar and with normal close stationary contact matched with normal close movable contact bridge, linkage setting are on the gangbar and with normal open stationary contact matched with normal open movable contact bridge, its characterized in that: the shell in correspond gangbar department and be provided with the torsional spring, the first torsion arm of torsional spring is contradicted on gangbar one end, the second torsion arm of torsional spring is contradicted on the shell, normally closed movable contact bridge and shell between be provided with the spring.

2. The auxiliary contact of the contactor according to claim 1, wherein: the shell in correspond first swing arm department and be provided with the guide way, gangbar one end have with first swing arm matched with cambered surface bellying, first swing arm pass the guide way and contradict on the cambered surface bellying, cambered surface bellying one side on set up with first swing arm spacing complex spacing piece.

3. The auxiliary contact of the contactor according to claim 2, wherein: the shell in be provided with the reference column, the torsional spring block on the reference column, the perisporium of reference column on be provided with respectively with torsional spring matched with a plurality of sand grip.

4. The auxiliary contact of a contactor according to claim 1 or 2, wherein: the linkage rod on be provided with the guiding hole that is used for placing normally closed movable contact bridge, the casing in be provided with the guide stopper that alternates in the guiding hole, the one end of spring contradict on normally closed movable contact bridge, the other end block of spring is on the guide stopper.

5. The auxiliary contact of a contactor according to claim 1 or 2, wherein: the connecting rod on be provided with and be used for placing the accommodation hole that often starts the contact bridge, the accommodation hole in be provided with the contact spring, this contact spring one end is contradicted on normally open movable contact bridge, the contact spring other end contradict on the inner wall of accommodation hole.

6. The auxiliary contact of a contactor according to claim 1 or 2, wherein: two clamping plates are arranged in the shell corresponding to two sides of the normally closed static contact, a clamping groove for placing the normally closed static contact is formed between the two clamping plates, the normally closed static contact is clamped in the clamping groove, and protruding points which are abutted against one side of the clamping plates are arranged on the normally closed static contact.

7. The auxiliary contact of a contactor according to claim 1 or 2, wherein: the shell comprises a base and a cover plate arranged on the base, two hooks connected with the contactor are arranged at one end of the cover plate, through holes matched with the two hooks are respectively formed in the base, and the two hooks respectively penetrate through the through holes and are exposed out of the base.

8. The auxiliary contact of the contactor according to claim 7, wherein: the cover plate is internally provided with a plurality of riveting columns, the base is provided with riveting holes matched with the riveting columns, and the riveting columns are arranged in the riveting holes in a penetrating mode.

9. The auxiliary contact of the contactor according to claim 7, wherein: two hooks connected with the contactor are respectively arranged at one end of the base.