CN215680553U - Relay auxiliary contact structure and relay - Google Patents
Relay auxiliary contact structure and relay Download PDFInfo
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- CN215680553U CN215680553U CN202121479962.1U CN202121479962U CN215680553U CN 215680553 U CN215680553 U CN 215680553U CN 202121479962 U CN202121479962 U CN 202121479962U CN 215680553 U CN215680553 U CN 215680553U
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Abstract
The invention relates to the technical field of relays, in particular to an auxiliary contact structure of a relay and the relay, wherein the auxiliary contact structure of the relay comprises an arc extinguish chamber and an auxiliary contact assembly; the auxiliary contact assembly comprises an auxiliary leading-out end and an auxiliary movable reed which are matched with each other, and a push rod assembly for driving the auxiliary movable reed to move; the auxiliary leading-out end penetrates through and is arranged in the arc extinguishing chamber; the auxiliary movable reed and the push rod assembly are integrally formed through injection molding. In order to solve the technical problem, the application provides a relay auxiliary contact structure and a relay with low cost, simple structure and simple process.
Description
Technical Field
The invention relates to the technical field of relays, in particular to an auxiliary contact structure of a relay and the relay.
Background
A relay is an electric control device that generates a predetermined step change in a controlled amount in an electric output circuit when a change in an input amount meets a predetermined requirement. The relay has an interactive relation between a control system and a controlled system, is usually applied to an automatic control circuit, and actually is an 'automatic switch' for controlling the operation of a large current by using a small current, so that the relay plays roles of automatic adjustment, safety protection, circuit conversion and the like in the circuit.
Two groups of contacts are usually arranged in the relay, one group of main contacts are fixed on the electromagnetic assembly, and the on-off control of the main control circuit is completed through the electromagnetic assembly; the other group is an auxiliary contact which is used as an auxiliary logic switch with a circuit control function and acts simultaneously with the main contact, the switch capacity of the auxiliary contact is smaller than that of the main contact, and other logic operations which need to be completed when the relay acts can be realized by utilizing the auxiliary contact.
The auxiliary contact is an auxiliary mechanical structure, the existing auxiliary contact has the technical problems of complex parts, complex process, high cost and the like, and the size of a product can be increased due to the auxiliary contact structure.
Disclosure of Invention
In order to solve the technical problem, the application provides a relay auxiliary contact structure and a relay with low cost, simple structure and simple process.
The application provides a relay auxiliary contact structure on one hand, which comprises an arc extinguish chamber, and an auxiliary contact assembly, a main contact assembly and an arc isolating mechanism which are arranged in the arc extinguish chamber; the auxiliary contact assembly comprises an auxiliary leading-out end and an auxiliary movable reed which are matched with each other, and a push rod assembly for driving the auxiliary movable reed to move; the auxiliary leading-out end penetrates through and is arranged in the arc extinguishing chamber; the auxiliary movable reed and the push rod assembly are integrally formed by injection molding; the arc isolating mechanism is arranged between the main contact assembly and the auxiliary contact assembly to isolate the arc of the main contact.
Preferably, the arc extinguish chamber is composed of a cover body and a base; the static contact of the main contact assembly and the auxiliary leading-out end of the auxiliary assembly are fixedly penetrated on the cover body; the movable contact of the main contact assembly and the auxiliary movable spring of the auxiliary assembly penetrate through the base and are arranged in the arc extinguishing chamber.
Preferably, the arc isolating mechanism comprises a stop block positioned between the main contact assembly and the auxiliary leading-out end and folded edges formed at two side edges of the stop block; the auxiliary leading-out end is positioned in a space formed by the stop block and the folded edge in a surrounding mode.
Preferably, a stopper block is formed on the stopper; and the limiting block is provided with a position avoiding hole for the auxiliary leading-out end to pass through.
The application also provides a sealing high-voltage direct-current relay, which comprises the relay auxiliary contact structure and an electromagnetic driving assembly, wherein the relay auxiliary contact structure comprises a contact structure body and a contact structure body; the electromagnetic driving assembly comprises a yoke iron, a coil frame which is fixedly arranged on the inner side of the yoke iron and is wound with a coil on the periphery, and a static iron core and a movable iron core which are sequentially sleeved in the coil frame along the axial direction; the pushing rod assembly can movably penetrate through the static iron core and is fixedly connected with the movable iron core.
From the above, the following beneficial effects can be obtained by applying the technical scheme provided by the application: the auxiliary leading-out end penetrates through and is arranged in the arc extinguishing chamber, and the auxiliary movable spring and the push rod assembly are integrally formed by injection molding, so that the auxiliary leading-out end and the auxiliary movable spring form an auxiliary contact assembly, the structure is simple, and the manufacturing cost is low; and an arc isolating mechanism is formed between the main contact assembly and the auxiliary leading-out end, so that the main contact assembly and the auxiliary leading-out end are electrically isolated, and the whole structure is simple and reliable.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It should be apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained by those skilled in the art without inventive exercise.
Fig. 1 is a first structural diagram of an auxiliary contact structure of a relay according to an embodiment of the present application;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
fig. 3 is a structural schematic diagram of an auxiliary contact structure of a relay according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Two groups of contacts are usually arranged in the relay, one group of main contacts are fixed on the electromagnetic assembly, and the on-off control of the main control circuit is completed through the electromagnetic assembly; the other group is an auxiliary contact which is used as an auxiliary logic switch with a circuit control function and acts simultaneously with the main contact, the switch capacity of the auxiliary contact is smaller than that of the main contact, and other logic operations which need to be completed when the relay acts can be realized by utilizing the auxiliary contact.
The auxiliary contact is an auxiliary mechanical structure, the existing auxiliary contact has the technical problems of complex parts, complex process, high cost and the like, and the size of a product can be increased due to the auxiliary contact structure.
In order to solve the above technical problem, the present embodiment provides a relay auxiliary contact structure with a simple and reliable structure.
As shown in fig. 1 to 3, the relay auxiliary contact structure includes an arc extinguish chamber 10 and an auxiliary contact assembly 20, wherein the auxiliary contact assembly 20 includes an auxiliary terminal 21 and an auxiliary movable contact spring 22, which are used cooperatively, and a push rod assembly 30 for driving the auxiliary movable contact spring 22 to move.
Because the auxiliary contact structure is applied to the field of relays, a main contact assembly exists, and the push rod assembly 30 can be the push rod assembly 30 of the main contact assembly, in the embodiment, the driving parts of the main contact assembly and the auxiliary contact assembly 20 are combined into a whole and are the push rod assembly 30. The structure ensures that the main contact is closed and the auxiliary contact is also closed when the relay is electrified; and the structure is simple and reliable by adopting a full-symmetrical structure.
Specifically, the auxiliary leading-out terminal 21 penetrates and is disposed in the arc extinguish chamber 10, one end of the auxiliary leading-out terminal 21 is led out of the arc extinguish chamber 10 to serve as an external terminal, and the other end is located in the arc extinguish chamber 10 to serve as a static terminal connected with the auxiliary movable contact spring 22. In order to achieve the purpose that the push rod assembly 30 is shared by the main contact assembly and the auxiliary contact assembly 20 through a simple structure, the auxiliary movable spring plate 22 and the push rod assembly 30 are integrally formed through injection molding, so that the electric isolation between the auxiliary movable spring plate and the push rod assembly is realized.
The integrally formed auxiliary movable spring piece 22 and the push rod assembly 30 form a whole, so that the push rod assembly 30 drives the auxiliary movable spring piece 22 to be communicated with the auxiliary leading-out end 21. Meanwhile, the auxiliary movable spring piece 22 is used as a switch-on part and made of a conductive material, the push rod assembly 30 is used as a driving part, the manufacturing material of the push rod assembly 30 can be adjusted according to production requirements, the auxiliary movable spring piece 22 and the push rod assembly 30 form a whole in an integrated injection molding mode, the push rod assembly is not limited by the materials of the auxiliary movable spring piece 22 and the push rod assembly 30, the mounting structure of the auxiliary leading-out end 21 is improved, the technical problems that the structure of the conventional auxiliary leading-out end 21 is complex and the manufacturing cost is high are solved, and the purpose that the auxiliary contact structure normally works is realized through a simple structure.
As the arc extinguish chamber 10, a main contact assembly is also arranged in the arc extinguish chamber 10, and the main contact assembly and the auxiliary leading-out terminal 21 are arranged in the arc extinguish chamber 10. In order to avoid the electromagnetic and arc influence generated by the main contact component and the auxiliary contact component 20 in the circuit switching process, an arc isolating mechanism 40 is formed between the main contact component and the auxiliary leading-out terminal 21 in the embodiment.
Above-mentioned separate arc mechanism 40 arranges in that the owner touches between subassembly and the supplementary end 21 of drawing forth, and main aim at keeps apart main contact electric arc, prevents that electric arc from damaging the auxiliary contact, avoids the owner to touch subassembly and supplementary drawing forth between the end 21 in circuit break-make in-process influence each other, and then improves the quality of relay.
Specifically, the arc blocking mechanism 40 includes a stopper 41 located between the main contact assembly and the auxiliary terminal 21 and folded edges 42 formed at both side edges of the stopper 41, and the auxiliary terminal 21 is located in a space surrounded by the stopper 41 and the folded edges 42. The stopper 41 and the folded edge 42 are made of an insulating material.
Because the length of the part of the auxiliary leading-out terminal 21 in the arc extinguish chamber 10 is greater than the length of the part exposed to the outside of the relay, a limiting block 53 is formed on the stopper 51, and a clearance hole 54 for the auxiliary leading-out terminal 20 to pass through is formed on the limiting block 53. The auxiliary leading-out terminal 20 is limited by the clearance hole 54, and the purpose is to isolate the main contact arc from damaging the auxiliary contact, and simultaneously isolate the arc generated by the auxiliary leading-out terminal 21 and the auxiliary movable spring piece 22 in the process of switching on and switching off the circuit.
As a finished structure feature of the relay, in the relay provided in this embodiment, the arc extinguish chamber 10 is composed of a cover and a base, the fixed contact of the main contact assembly and the auxiliary terminal 21 of the auxiliary assembly are fixed on the cover in a penetrating manner, and the movable contact of the main contact assembly and the auxiliary movable contact spring 22 of the auxiliary assembly are arranged in the arc extinguish chamber 10 in a penetrating manner through the base.
An electromagnetic driving component for driving the push rod component 30 to move; the electromagnetic driving assembly comprises a yoke iron, a coil frame which is fixedly arranged on the inner side of the yoke iron and is wound with a coil on the periphery, and a static iron core and a movable iron core which are sequentially sleeved in the coil frame along the axial direction; the pushing rod assembly 30 can movably penetrate through the static iron core and is fixedly connected with the movable iron core.
The metal shell is sleeved on the periphery of the movable iron core inside the coil frame, and the magnetic conduction cylinder is sleeved on the periphery of the metal shell.
In summary, according to the technical scheme of the embodiment, the auxiliary leading-out end penetrates through and is arranged in the arc extinguishing chamber, and the auxiliary movable spring and the push rod assembly are integrally formed by injection molding, so that the auxiliary leading-out end and the auxiliary movable spring form an auxiliary contact assembly, and the arc extinguishing device is simple in structure and low in manufacturing cost; and an arc isolating mechanism is formed between the main contact assembly and the auxiliary leading-out end, so that the main contact assembly and the auxiliary leading-out end are electrically isolated, and the whole structure is simple and reliable.
The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.
Claims (5)
1. The utility model provides a relay auxiliary contact structure which characterized in that: the arc extinguishing chamber is arranged in the arc extinguishing chamber, and the auxiliary contact assembly, the main contact assembly and the arc isolating mechanism are arranged in the arc extinguishing chamber; the auxiliary contact assembly comprises an auxiliary leading-out end and an auxiliary movable reed which are matched with each other, and a push rod assembly for driving the auxiliary movable reed to move; the auxiliary leading-out end penetrates through and is arranged in the arc extinguishing chamber; the auxiliary movable reed and the push rod assembly are integrally formed by injection molding; the arc isolating mechanism is arranged between the main contact assembly and the auxiliary contact assembly to isolate the arc of the main contact.
2. The relay auxiliary contact structure according to claim 1, wherein: the arc extinguish chamber consists of a cover body and a base; the static contact of the main contact assembly and the auxiliary leading-out end of the auxiliary assembly are fixedly penetrated on the cover body; the movable contact of the main contact assembly and the auxiliary movable spring of the auxiliary assembly penetrate through the base and are arranged in the arc extinguishing chamber.
3. The relay auxiliary contact structure according to claim 1, wherein: the arc isolating mechanism comprises a stop block positioned between the main contact assembly and the auxiliary leading-out end and folded edges formed at two side edges of the stop block; the auxiliary leading-out end is positioned in a space formed by the stop block and the folded edge in a surrounding mode.
4. The relay auxiliary contact structure according to claim 3, wherein: forming a limiting block on the stop block; and the limiting block is provided with a position avoiding hole for the auxiliary leading-out end to pass through.
5. A relay, characterized by: the relay auxiliary contact structure comprises the relay auxiliary contact structure of any one of claims 1-4, and an electromagnetic driving assembly for driving the push rod assembly to move; the electromagnetic driving assembly comprises a yoke iron, a coil frame which is fixedly arranged on the inner side of the yoke iron and is wound with a coil on the periphery, and a static iron core and a movable iron core which are sequentially sleeved in the coil frame along the axial direction; the pushing rod assembly can movably penetrate through the static iron core and is fixedly connected with the movable iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479962.1U CN215680553U (en) | 2021-06-30 | 2021-06-30 | Relay auxiliary contact structure and relay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121479962.1U CN215680553U (en) | 2021-06-30 | 2021-06-30 | Relay auxiliary contact structure and relay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215680553U true CN215680553U (en) | 2022-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121479962.1U Active CN215680553U (en) | 2021-06-30 | 2021-06-30 | Relay auxiliary contact structure and relay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215680553U (en) |
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2021
- 2021-06-30 CN CN202121479962.1U patent/CN215680553U/en active Active
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