CN111584258A - Vibration reduction contact structure with damping block for inhibiting contact attraction impact force - Google Patents
Vibration reduction contact structure with damping block for inhibiting contact attraction impact force Download PDFInfo
- Publication number
- CN111584258A CN111584258A CN201910121257.5A CN201910121257A CN111584258A CN 111584258 A CN111584258 A CN 111584258A CN 201910121257 A CN201910121257 A CN 201910121257A CN 111584258 A CN111584258 A CN 111584258A
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- contact
- damping block
- static contact
- moving contact
- spring
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/54—Contact arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The utility model provides a set up damping piece and restrain anti-shake contact structure of contact actuation impact force, includes moving contact and static contact, wherein: the moving contact is provided with a moving contact and a moving contact spring, and the static contact is provided with a static contact and a static contact spring. The method is characterized in that: the static contact and the moving contact are both provided with a blocky or annular damping block and an auxiliary supporting body, at least one of the two auxiliary supporting bodies is made into a spring body, and the other auxiliary supporting bodies can be made into a rigid supporting body or a spring body. The subsidiary support body is used for supporting the corresponding damping block, the subsidiary support body made into the spring body enables the corresponding damping block to generate elastic expansion displacement by utilizing elastic deformation of the spring body, when the contact is attracted, the moving contact damping block is driven to collide with the static contact damping block, the subsidiary support body made into the spring body generates elastic deformation to buffer and restrain impact force of the moving contact on the static contact, the effect of restraining attraction impact force when the contact is attracted is achieved, and therefore the relay, the contactor or the circuit breaker with the functions of shake prevention and long service life can be manufactured.
Description
Technical Field
The invention relates to a contact structure of a relay, a contactor or a breaker in the field of electric appliances, in particular to a shake reducing contact structure for inhibiting impact force when contacts of the relay, the contactor or the breaker are closed and disconnected.
Background
The main measures for reducing the vibration of the contact point of the existing electromagnetic relay, contactor or circuit breaker during the suction and disconnection are to adopt a method of changing mechanical parameters and materials of a contact spring system, for example, for the contact spring system with a rigid static contact spring, the contact point stress is increased, or a movable contact spring material with small material density, large elastic modulus and large vibration attenuation coefficient is selected, or the length, the width, the thickness and the like of the movable contact spring are reduced, so that the vibration resistance is improved, but few measures are taken on the contact structure of the relay to inhibit the suction and disconnection impact force, so that the vibration resistance is improved so as to reduce the vibration, and as a result, the vibration reduction effect is limited.
Disclosure of Invention
The technical problem to be solved by the invention is to improve the contact structure on the basis of the conventional contact structure used at present, and provide a novel and effective contact structure which is provided with a damping block to inhibit the contact suction impact force.
The purpose of the invention is realized as follows: the utility model provides a set up damping piece and restrain anti-shake contact structure of contact actuation impact force, includes moving contact (A) and static contact (B), wherein: the moving contact (A) is provided with a moving contact (1) and a moving contact spring (5), the moving contact (1) is connected to the moving contact spring (5), the static contact (B) is provided with a static contact (2) and a static contact spring (6), and the static contact (2) is connected to the static contact spring (6). The method is characterized in that:
1. the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a block shape or an annular shape, one end of the moving contact damping block subsidiary support body (7) is connected with the moving contact damping block (3), the other end of the moving contact damping block subsidiary support body is connected with a moving contact spring (5), the moving contact damping block (3) is supported, the moving contact damping block (3) is pressed close to and surrounds the moving contact (1), and the distance between the moving contact damping block and the moving contact spring (5) exceeds the length of the moving contact (1; the static contact (B) is provided with a static contact damping block (4) and a static contact damping block subsidiary support body (8), the static contact damping block (4) is made into a block shape or an annular shape, one end of the static contact damping block subsidiary support body (8) is connected with the static contact damping block (4), the other end of the static contact damping block subsidiary support body is connected with a static contact spring (6), the static contact damping block (4) is supported, the static contact damping block (4) is enabled to be close to and surround the static contact (2), and the distance between the static contact damping block and the static contact spring (6) exceeds the length of the static contact (2).
2. The moving contact damping block is additionally provided with a support body (7) and the static contact damping block is additionally provided with a support body (8), at least one of the two groups of support bodies is made into a spring body, and the other group of support bodies can be made into a rigid support body or a spring body. When the moving contact damping block subsidiary support body (7) is made into a spring body, the moving contact damping block (3) generates elastic telescopic displacement along the attraction direction of the moving contact (1) through elastic deformation, and when the static contact damping block subsidiary support body (8) is made into the spring body, the static contact damping block (4) generates elastic telescopic displacement along the attraction direction of the static contact (2) through elastic deformation.
3. When the contact is attracted, the moving contact damping block (3) firstly collides with the static contact damping block (4), the moving contact damping block and the static contact damping block buffer and inhibit attraction impact force through elastic deformation of the spring bodies in the moving contact damping block subsidiary support body (7) and the static contact damping block subsidiary support body (8), and then the moving contact (1) is contacted with the static contact (2) and attracted.
4. When the moving contact damping block is manufactured into a spring body by attaching a support body (7), the stiffness coefficient and the displacement parameter of the selected spring body are calculated according to Hooke's law, and the elasticity of the spring body is smaller than the contact attraction force. When the static contact damping block is made into a spring body with the supporting body (8), the stiffness coefficient and the displacement parameter of the selected spring body are smaller than the contact attraction force according to the Hooke's law, so that when the contact is attracted, the moving contact damping block (3) collides with the static contact damping block (4) and then elastically deforms the spring body with the supporting body, the impact force of the moving contact (1) on the static contact (2) can be buffered and restrained, and meanwhile, the attracted contact is not disconnected because the elastic force recovered after collision is larger than the contact attraction force.
5. The movable contact (1) and the movable contact touch spring (5), the fixed contact (2) and the fixed contact touch spring (6) are made of metal, the movable contact damping block (3) and the fixed contact damping block (4) are made of collision-resistant materials, the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of metal or nonmetal materials, the movable contact damping block (3), the fixed contact damping block (4), the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of non-conducting materials or are provided with insulating layers, and a non-conducting insulator is manufactured.
Compared with the prior contact structure, the invention has the following beneficial effects: when the contact is attracted, the moving contact damping block (3) is driven to firstly collide the static contact damping block (4), the moving contact damping block is attached with the supporting body (7) and the static contact damping block is attached with the spring body in the supporting body (8) to elastically deform, the moving contact damping block (3) and the static contact damping block (4) are enabled to buffer and restrain attraction impact force, then the moving contact (1) is contacted with the static contact (2) and attracted, the effect of restraining the impact force when the contact is attracted is achieved, and therefore the relay, the contactor or the circuit breaker which can reduce shaking and have long service life can be manufactured.
Description of the drawings:
fig. 1 is an overall schematic view of a contact structure of embodiment 1 of the present invention;
fig. 2 is a schematic perspective view of a contact structure according to embodiment 1 of the present invention;
fig. 3 is an overall schematic view of a contact structure of embodiment 2 of the present invention;
fig. 4 is a schematic perspective view of a contact structure according to embodiment 2 of the present invention;
fig. 5 is an overall schematic view of a contact structure of embodiment 3 of the invention;
fig. 6 is a schematic perspective view of a contact structure according to embodiment 3 of the present invention;
fig. 7 is an overall schematic view of a contact structure of embodiment 4 of the present invention;
fig. 8 is a schematic perspective view of a contact structure according to embodiment 4 of the present invention.
Description of reference numerals: the moving contact damping block comprises a moving contact (A), a moving contact (1), a moving contact spring (5), a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), and a static contact (B), a static contact (2), a static contact spring (6), a static contact damping block (4) and a static contact damping block subsidiary support body (8).
The specific implementation mode is as follows:
the present invention will be described in more detail below with reference to embodiments 1, 2, 3, and 4 of the drawings.
Example 1
The moving contact damping block (3) and the static contact damping block (4) of the embodiment 1 are both of an annular structure, the moving contact damping block is additionally provided with a support body (7) to be manufactured into a rigid support body, the rigid support body surrounds the moving contact (1), the static contact damping block is additionally provided with a support body (8) to be manufactured into a spring body, and a spiral coil of the spring body surrounds the static contact (2).
The contact structure of embodiment 1 includes a movable contact (a) and a stationary contact (B), wherein: the moving contact (A) is provided with a moving contact (1), a moving contact spring (5), the moving contact (1) is connected to the moving contact spring (5), the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a ring shape, the moving contact (1) is encircled, the position of the moving contact (1) is higher than that of the moving contact, the moving contact damping block subsidiary support body (7) is made into 4 rigid support bodies, the moving contact damping block is encircled around the moving contact (1) and is parallel to the suction direction of the moving contact (1), one end of the moving contact damping block is connected with the ring-shaped moving contact damping block (3), the other end of the moving contact damping block; the static contact (B) is provided with a static contact (2) and a static contact spring (6), the static contact (2) is connected with the static contact spring (6), a static contact damping block (4) and a supporting body (8) attached to the static contact damping block are arranged on the static contact (B), the static contact damping block (4) is made into a ring shape and surrounds the static contact (2), at the position higher than the static contact (2), the static contact damping block is additionally provided with a support body (8) to be made into 1 spring body, the spiral coil of the spring body surrounds the static contact (2), the annular static contact damping block is supported by the annular static contact damping block (4), and the annular static contact damping block (4) can generate elastic telescopic displacement along the attraction direction of the static contact (2) by utilizing the elastic deformation of a spring body of the static contact damping block with the supporting body (8).
When the contacts are attracted, the annular moving contact damping block (3) is driven to collide with the annular static contact damping block (4), the impact force of the moving contact (1) on the static contact (2) is buffered and restrained through the elastic deformation of the spring body generated by the subsidiary supporting body (8) of the static contact damping block, and then the moving contact (1) is contacted with the static contact (2) and attracted, so that the effect of restraining the impact force when the contacts are attracted is achieved.
Example 2
The moving contact damping block (3) and the static contact damping block (4) of the embodiment 2 both adopt an annular structure, the moving contact damping block is additionally provided with a support body (7) to be manufactured into a spring body, a spiral coil of the spring body surrounds the moving contact (1), the static contact damping block is additionally provided with a support body (8) to be manufactured into a spring body, and the spiral coil of the spring body surrounds the static contact (2).
The contact structure of embodiment 2 includes a movable contact (a) and a stationary contact (B), wherein: the moving contact (A) is provided with a moving contact (1) and a moving contact spring (5), the moving contact (1) is connected with the moving contact spring (5), the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a ring shape and surrounds the moving contact (1), at the position higher than the moving contact (1), the moving contact damping block is additionally provided with a support body (7) to be made into 1 spring body, a spiral coil of the spring body surrounds the moving contact (1), the damping device is parallel to the suction direction of the movable contact (1), one end of the damping device is connected with the annular movable contact damping block (3), the other end of the damping device is connected with the movable contact spring (5) to support the annular movable contact damping block (3), and the annular movable contact damping block (3) can generate elastic telescopic displacement along the suction direction of the movable contact (1) by utilizing the elastic deformation of a spring body of the movable contact damping block and the supporting body (7); the static contact (B) is provided with a static contact (2) and a static contact spring (6), the static contact (2) is connected with the static contact spring (6), a static contact damping block (4) and a supporting body (8) attached to the static contact damping block are arranged on the static contact (B), the static contact damping block (4) is made into a ring shape and surrounds the static contact (2), at the position higher than the static contact (2), the static contact damping block is additionally provided with a support body (8) to be made into 1 spring body, the spiral coil of the spring body surrounds the static contact (2), the annular static contact damping block is supported by the annular static contact damping block (4), and the annular static contact damping block (4) can generate elastic telescopic displacement along the attraction direction of the static contact (2) by utilizing the elastic deformation of a spring body of the static contact damping block with the supporting body (8).
When the contact is attracted, the annular moving contact damping block (3) is driven to collide with the annular static contact damping block (4), the impact force of the moving contact (1) on the static contact (2) is buffered and restrained through the elastic deformation of the spring body jointly generated by the moving contact damping block subsidiary supporting body (7) and the static contact damping block subsidiary supporting body (8), and then the moving contact (1) is contacted with the static contact (2) and attracted, so that the effect of restraining the impact force when the contact is attracted is achieved.
Example 3
Moving contact damping piece (3) and static contact damping piece (4) of this embodiment 3 all adopt the loop configuration, and 4 rigid support bodies are made to moving contact damping piece subsidiary supporter (7), surround around moving contact (1), and 4 spring bodies are made to static contact damping piece subsidiary support (8), surround around static contact (2).
The contact structure of embodiment 4 includes a movable contact (a) and a stationary contact (B), wherein: the moving contact (A) has moving contact (1), the moving contact touches the spring (5), the moving contact (1) is connected on the moving contact touches the spring (5), set up moving contact damping block (3) and moving contact damping block subsidiary supporter (7) at the moving contact (A), moving contact damping block (3) are made into the annular, encircle moving contact (1), in the position that exceeds moving contact (1), 4 rigid supporters are made into to moving contact damping block subsidiary supporter (7), encircle around moving contact (1), it is parallel and symmetric distribution with moving contact (1) actuation direction, make its one end be connected with annular moving contact damping block (3), the other end is connected with moving contact touches the spring (5) with the moving contact, support annular moving contact damping block (3); the static contact (B) is provided with a static contact (2) and a static contact spring (6), the static contact (1) is connected with the static contact spring (6), a static contact damping block (4) and a supporting body (8) attached to the static contact damping block are arranged on the static contact (B), the static contact damping block (4) is made into a ring shape and surrounds the static contact (2), at the position higher than the static contact (2), the static contact damping block is made into 4 spring bodies with a supporting body (8) and surrounds the static contact (2), the annular static contact damping block is parallel to the attraction direction of the static contact (2) and is symmetrically distributed, one end of the annular static contact damping block is connected with the annular static contact damping block (4), the other end of the annular static contact damping block is connected with the static contact spring (6), the annular static contact damping block (4) is supported, and the annular static contact damping block (4) can generate elastic telescopic displacement along the attraction direction of the static contact (2) by utilizing the elastic deformation of a spring body of the static contact damping block and the supporting body (6).
When the contacts are attracted, the annular moving contact damping block (3) is driven to collide with the annular static contact damping block (4), the impact force of the moving contact (1) on the static contact (2) is buffered and restrained through the elastic deformation of the spring body generated by the subsidiary supporting body (8) of the static contact damping block, and then the moving contact (1) is contacted with the static contact (2) and attracted, so that the effect of restraining the impact force when the contacts are attracted is achieved.
Example 4
Moving contact damping piece (3) and static contact damping piece (4) of this embodiment 4 all adopt the loop configuration, and 4 spring bodies are made to moving contact damping piece subsidiary supporter (7), surround around moving contact (1), and 4 spring bodies are made to static contact damping piece subsidiary support (8), surround around static contact (2).
The contact structure of embodiment 4 includes a movable contact (a) and a stationary contact (B), wherein: the moving contact (A) is provided with a moving contact (1) and a moving contact spring (5), the moving contact (1) is connected with the moving contact spring (5), the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a ring shape and surrounds the moving contact (1), at the position higher than the moving contact (1), the moving contact damping block is additionally provided with a support body (7) which is made into 4 spring bodies and surrounds the moving contact (1), the damping block is parallel to the suction direction of the movable contact (1) and symmetrically distributed, one end of the damping block is connected with the annular movable contact damping block (3), the other end of the damping block is connected with the movable contact spring (5) to support the annular movable contact damping block (3), and the annular movable contact damping block (3) can generate elastic telescopic displacement along the suction direction of the movable contact (1) by utilizing the elastic deformation of a spring body of the movable contact damping block and the supporting body (7); the static contact (B) is provided with a static contact (2) and a static contact spring (6), the static contact (1) is connected with the static contact spring (6), a static contact damping block (4) and a supporting body (8) attached to the static contact damping block are arranged on the static contact (B), the static contact damping block (4) is made into a ring shape and surrounds the static contact (2), at the position higher than the static contact (2), the static contact damping block is made into 4 spring bodies with a supporting body (8) and surrounds the static contact (2), the annular static contact damping block is parallel to the attraction direction of the static contact (2) and is symmetrically distributed, one end of the annular static contact damping block is connected with the annular static contact damping block (4), the other end of the annular static contact damping block is connected with the static contact spring (6), the annular static contact damping block (4) is supported, and the annular static contact damping block (4) can generate elastic telescopic displacement along the attraction direction of the static contact (2) by utilizing the elastic deformation of a spring body of the static contact damping block and the supporting body (6).
When the contact is attracted, the annular moving contact damping block (3) is driven to collide with the annular static contact damping block (4), the impact force of the moving contact (1) on the static contact (2) is buffered and restrained through the elastic deformation of the spring body jointly generated by the moving contact damping block subsidiary support body (7) and the static contact damping block subsidiary support body (8), and then the moving contact (1) is contacted with the static contact (2) and attracted, so that the effect of restraining the impact force when the contact is attracted is achieved.
Claims (5)
1. The utility model provides a set up damping piece and restrain reduction shake contact structure of contact actuation impact force, includes moving contact (A) and static contact (B), wherein: the moving contact (A) is provided with a moving contact (1) and a moving contact spring (5), the moving contact (1) is connected to the moving contact spring (5), the static contact (B) is provided with a static contact (2) and a static contact spring (6), and the static contact (2) is connected to the static contact spring (6); the method is characterized in that: the moving contact (A) is provided with a moving contact damping block (3) and a moving contact damping block subsidiary support body (7), the moving contact damping block (3) is made into a block shape or an annular shape, one end of the moving contact damping block subsidiary support body (7) is connected with the moving contact damping block (3), the other end of the moving contact damping block subsidiary support body is connected with a moving contact spring (5), the moving contact damping block (3) is supported, the moving contact damping block (3) is pressed close to and surrounds the moving contact (1), and the distance between the moving contact damping block and the moving contact spring (5) exceeds the length of the moving contact (1; the static contact (B) is provided with a static contact damping block (4) and a static contact damping block subsidiary support body (8), the static contact damping block (4) is made into a block shape or an annular shape, one end of the static contact damping block subsidiary support body (8) is connected with the static contact damping block (4), the other end of the static contact damping block subsidiary support body is connected with a static contact spring (6), the static contact damping block (4) is supported, the static contact damping block (4) is enabled to be close to and surround the static contact (2), and the distance between the static contact damping block and the static contact spring (6) exceeds the length of the static contact (2).
2. The contact structure of claim 1, wherein: the moving contact damping block is additionally provided with a support body (7) and the static contact damping block is additionally provided with a support body (8), at least one of the two groups of support bodies is made into a spring body, and the other group of support bodies can be made into a rigid support body or a spring body; when the moving contact damping block subsidiary support body (7) is made into a spring body, the moving contact damping block (3) generates elastic telescopic displacement along the attraction direction of the moving contact (1) through elastic deformation, and when the static contact damping block subsidiary support body (8) is made into the spring body, the static contact damping block (4) generates elastic telescopic displacement along the attraction direction of the static contact (2) through elastic deformation.
3. The contact structure of claim 1, wherein: when the contact is attracted, the moving contact damping block (3) firstly collides with the static contact damping block (4), the moving contact damping block and the static contact damping block buffer and inhibit attraction impact force through elastic deformation of the spring bodies in the moving contact damping block subsidiary support body (7) and the static contact damping block subsidiary support body (8), and then the moving contact (1) is contacted with the static contact (2) and attracted.
4. The contact structure of claim 1, wherein: when the moving contact damping block is manufactured into a spring body by attaching a support body (7), the stiffness coefficient and the displacement parameter of the selected spring body are calculated according to Hooke's law, and the elasticity of the spring body is smaller than the contact attraction force; when the static contact damping block is made into a spring body with the supporting body (8), the stiffness coefficient and the displacement parameter of the selected spring body are smaller than the contact attraction force according to the Hooke's law, so that when the contact is attracted, the moving contact damping block (3) collides with the static contact damping block (4) and then elastically deforms the spring body with the supporting body, the impact force of the moving contact (1) on the static contact (2) can be buffered and restrained, and meanwhile, the attracted contact is not disconnected because the elastic force recovered after collision is larger than the contact attraction force.
5. The contact structure of claim 1, wherein: the movable contact (1) and the movable contact touch spring (5), the fixed contact (2) and the fixed contact touch spring (6) are made of metal, the movable contact damping block (3) and the fixed contact damping block (4) are made of collision-resistant materials, the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of metal or nonmetal materials, the movable contact damping block (3), the fixed contact damping block (4), the movable contact damping block subsidiary supporting body (7) and the fixed contact damping block subsidiary supporting body (8) are made of non-conducting materials or are provided with insulating layers, and a non-conducting insulator is manufactured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121257.5A CN111584258A (en) | 2019-02-19 | 2019-02-19 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910121257.5A CN111584258A (en) | 2019-02-19 | 2019-02-19 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
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| Publication Number | Publication Date |
|---|---|
| CN111584258A true CN111584258A (en) | 2020-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910121257.5A Pending CN111584258A (en) | 2019-02-19 | 2019-02-19 | Vibration reduction contact structure with damping block for inhibiting contact attraction impact force |
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| CN (1) | CN111584258A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112435875A (en) * | 2020-12-08 | 2021-03-02 | 安徽宝泰特种材料有限公司 | Touch switch device capable of bearing super-large current |
| CN112735895A (en) * | 2020-12-29 | 2021-04-30 | 徐洪英 | Transformer substation disconnecting link stabilizing assembly based on equal elasticity principle |
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|---|---|---|---|---|
| CN112435875A (en) * | 2020-12-08 | 2021-03-02 | 安徽宝泰特种材料有限公司 | Touch switch device capable of bearing super-large current |
| CN112735895A (en) * | 2020-12-29 | 2021-04-30 | 徐洪英 | Transformer substation disconnecting link stabilizing assembly based on equal elasticity principle |
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