CN220914143U - Auxiliary contact - Google Patents
Auxiliary contact Download PDFInfo
- Publication number
- CN220914143U CN220914143U CN202322677400.3U CN202322677400U CN220914143U CN 220914143 U CN220914143 U CN 220914143U CN 202322677400 U CN202322677400 U CN 202322677400U CN 220914143 U CN220914143 U CN 220914143U
- Authority
- CN
- China
- Prior art keywords
- contact
- shell
- pressing plate
- micro switches
- frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
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- Switch Cases, Indication, And Locking (AREA)
Abstract
The utility model relates to an auxiliary contact, which comprises a bracket, a plurality of microswitches, a driving piece and a pressing plate, wherein the microswitches comprise a shell, a button, a first contact frame, a first movable contact spring, four first fixed contacts arranged on the shell and matched with the first movable contact spring, a second contact frame matched with the first contact frame in a linkage manner, a second movable contact spring arranged on the second contact frame in a linkage manner, four second fixed contacts arranged on the shell and matched with the second movable contact spring, and a reset spring arranged between the second contact frame and the shell, a plurality of cambered surface raised strips are respectively arranged at the positions, corresponding to the buttons of the microswitches, of the pressing plate, and the cambered surface raised strips can be abutted on the buttons of the microswitches along with the action of the pressing plate, so that the microswitches are turned on or off. The utility model has the advantages of simple structure, stable and reliable performance, convenient assembly and good insulating property.
Description
Technical Field
The utility model relates to an auxiliary contact.
Background
The auxiliary contact switch is a part of a main switch, is configured in power equipment such as a high-voltage or medium-voltage circuit breaker, a disconnecting switch and the like to serve as a secondary control loop for opening, closing, signal control and interlocking protection, and can also serve as a combined switch and a change-over switch. The auxiliary contact switch is named as an auxiliary switch because the auxiliary contact switch is not an independent switch and is a carrier for realizing auxiliary breaking, switching-on and interlocking functions in the control system. The existing auxiliary contact switch is provided with a plurality of micro switches for controlling a plurality of loops, the driving piece cannot realize that the micro switches synchronously execute opening or closing actions, the synchronism is poor, the reliability of the auxiliary contact switch is low, the creepage distance among the micro switches is small, and the insulating property is unreliable.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the auxiliary contact which has the advantages of simple structure, stable and reliable performance, convenience in assembly and good insulating property.
In order to achieve the above purpose, the utility model adopts an auxiliary contact, which comprises a bracket, a plurality of micro switches respectively arranged in the bracket, a driving piece rotationally arranged on the bracket, and a pressing plate rotationally arranged on the driving piece and used for driving the micro switches to execute opening and closing actions, wherein the micro switches comprise a shell, a button arranged on the shell, a first contact frame in linkage fit with the button, a first movable contact spring arranged on the first contact frame, four first fixed contacts arranged on the shell and matched with the first movable contact spring, a second contact frame in linkage fit with the first contact frame, a second movable contact spring in linkage arranged on the second contact frame, four second fixed contacts arranged on the shell and matched with the second movable contact spring, and a reset spring arranged between the second contact frame and the shell, wherein a plurality of cambered surfaces are respectively arranged at the positions of the pressing plate corresponding to the micro switches, and the cambered surfaces can be abutted against the buttons of the micro switches along with the movement of the pressing plate, and the connection or disconnection of the micro switches is achieved.
The beneficial effects of the structure are as follows: the driving piece is rotationally arranged on the pressing plate, a plurality of cambered surface convex strips matched with the buttons of the micro-switches are respectively arranged on the pressing plate, and the cambered surface convex strips can be respectively attached to the buttons of the micro-switches along with the action of the pressing plate, so that the micro-switches can be ensured to synchronously execute the opening and closing actions, and the synchronism is better. And the plurality of micro switches are integrated and modularized, so that the bracket and the plurality of micro switches are convenient to assemble. Therefore, the auxiliary contact has the advantages of simple structure, stable and reliable performance and convenience in assembly.
Particularly, one end of the driving piece is provided with a poking plate part exposed outside the bracket, the other end of the driving piece is provided with two driving arms extending in the bracket, positioning holes are respectively formed in the two driving arms, positioning columns are respectively arranged on two sides of the pressing plate, the positioning columns are inserted in the positioning holes, and the pressing plate is in rotary connection fit with the two driving arms. The clamp plate passes through two reference columns block on two drive arms of driving piece to the assembly of clamp plate and driving piece is convenient for, and the assembly is more convenient, and can guarantee that the driving piece can reliably drive the clamp plate, and the clamp plate can drive a plurality of micro-gap switch actions simultaneously along with the action of driving piece, thereby is favorable to improving the operational reliability of this auxiliary contact.
Specifically, the driving piece both sides on be provided with the pivot portion respectively, the support on be provided with two supporting lugs that cooperate with pivot portion, be provided with the pivot hole on two supporting lugs respectively, pivot portion both ends respectively alternate in the pivot hole, and constitute the rotation connection cooperation of pivot portion and two supporting lugs. The driving piece is clamped on two supporting lugs of the bracket through the rotating shaft part, so that the driving piece and the bracket are convenient to assemble, and the assembly efficiency is higher.
Particularly, the transmission sleeve connected between the first contact frame and the second contact frame is characterized in that two ends of the transmission sleeve are respectively clamped on the convex blocks of the first contact frame and the second contact frame.
In particular, the support is respectively provided with an insulating partition plate which is separated among the micro switches. The insulation partition plate can increase the creepage distance among the micro switches, and is beneficial to improving the insulation performance of the auxiliary contact.
Drawings
Fig. 1 is a perspective view of an embodiment of the present utility model.
Fig. 2 is a cross-sectional view of an embodiment of the present utility model.
Fig. 3 is an exploded view 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, which comprises a bracket 10, a plurality of micro switches 20 respectively arranged in the bracket 10, a driving piece 11 rotatably arranged on the bracket 10, four second fixed contacts 28 rotatably arranged on the driving piece 11 and used for driving the micro switches 20 to perform opening and closing actions, wherein the micro switches 20 comprise a shell 21, a button 22 arranged on the shell 21, a first movable contact spring 24 in linkage fit with the button 22, four first fixed contacts 25 arranged on the shell 21 and matched with the first movable contact spring 24, a second movable contact spring 27 in linkage fit with the first movable contact spring 24, four second fixed contacts 28 arranged on the shell 21 and matched with the second movable contact spring 27, a plurality of protruding strips 121 are respectively arranged on the button 21 of the micro switches 20 corresponding to the plurality of protruding strips 121 on the pressing plate 12, and the plurality of protruding strips 20 can be connected or disconnected with the micro switches 21.
As shown in fig. 2 and 3, one end of the driving member 11 is provided with a shifting plate portion 111 exposed outside the bracket 10, the other end of the driving member 11 is provided with two driving arms 112 extending in the bracket 10, positioning holes 1121 are respectively formed in the two driving arms 112, positioning posts 122 are respectively formed on two sides of the pressing plate 12, the positioning posts 122 are inserted into the positioning holes 1121, and the pressing plate 12 is in rotary connection with the two driving arms 112. The clamp plate passes through two reference columns block on two drive arms of driving piece to the assembly of clamp plate and driving piece is convenient for, and the assembly is more convenient, and can guarantee that the driving piece can reliably drive the clamp plate, and the clamp plate can drive a plurality of micro-gap switch actions simultaneously along with the action of driving piece, thereby is favorable to improving the operational reliability of this auxiliary contact. The two sides of the driving member 11 are respectively provided with a rotating shaft portion 113, the bracket 10 is provided with two supporting lugs 101 matched with the rotating shaft portion 113, the two supporting lugs 101 are respectively provided with rotating shaft holes 102, two ends of the rotating shaft portion 113 are respectively inserted into the rotating shaft holes 102, and the rotating shaft portion 113 is in rotating connection and matching with the two supporting lugs 101. The driving piece is clamped on two supporting lugs of the bracket through the rotating shaft part, so that the driving piece and the bracket are convenient to assemble, and the assembly efficiency is higher. The transmission sleeve 30 connected between the first contact frame 23 and the second contact frame 26, and two ends of the transmission sleeve 30 are respectively clamped on the protruding blocks 200 of the first contact frame 23 and the second contact frame 26.
As shown in fig. 1, the stand 10 is provided with insulating spacers 13 respectively spaced between a plurality of micro switches 20. The insulation partition plate can increase the creepage distance among the micro switches, and is beneficial to improving the insulation performance of the auxiliary contact.
The driving piece is rotationally arranged on the pressing plate, a plurality of cambered surface convex strips matched with the buttons of the micro-switches are respectively arranged on the pressing plate, and the cambered surface convex strips can be respectively attached to the buttons of the micro-switches along with the action of the pressing plate, so that the micro-switches can be ensured to synchronously execute the opening and closing actions, and the synchronism is better. And the plurality of micro switches are integrated and modularized, so that the bracket and the plurality of micro switches are convenient to assemble. Therefore, the auxiliary contact has the advantages of simple structure, stable and reliable performance and convenience in assembly.
Claims (5)
1. An auxiliary contact, characterized in that: the automatic switching-on and switching-off device comprises a support, a plurality of micro switches respectively arranged in the support, a driving piece arranged on the support in a rotating manner, and a pressing plate arranged on the driving piece in a rotating manner and used for driving the micro switches to execute switching-on and switching-off actions, wherein the micro switches comprise a shell, a button arranged on the shell, a first contact frame in linkage fit with the button, a first movable contact spring arranged on the first contact frame, four first fixed contacts arranged on the shell and matched with the first movable contact frame, a second contact frame in linkage arrangement on the second contact frame, four second fixed contacts arranged on the shell and matched with the second movable contact frame, and a reset spring arranged between the second contact frame and the shell, wherein a plurality of cambered surfaces are respectively arranged at the positions of the pressing plate corresponding to the button of the micro switches, and can be abutted against the buttons of the micro switches along with the action of the pressing plate, and the connection or disconnection of the micro switches is realized.
2. The auxiliary contact of claim 1, wherein: one end of the driving piece is provided with a poking plate part exposed outside the bracket, the other end of the driving piece is provided with two driving arms extending in the bracket, positioning holes are respectively formed in the two driving arms, positioning columns are respectively arranged on two sides of the pressing plate, the positioning columns are inserted in the positioning holes, and the pressing plate is in rotary connection fit with the two driving arms.
3. Auxiliary contact according to claim 1 or 2, characterized in that: the driving piece both sides on be provided with the pivot portion respectively, the support on be provided with two supporting lugs with pivot portion matched with, be provided with the pivot hole on two supporting lugs respectively, pivot portion both ends respectively alternate in the pivot hole, and constitute the swivelling joint cooperation of pivot portion and two supporting lugs.
4. Auxiliary contact according to claim 1 or 2, characterized in that: and two ends of the transmission sleeve are respectively clamped on the convex blocks of the first contact head frame and the second contact head frame.
5. Auxiliary contact according to claim 1 or 2, characterized in that: the support is respectively provided with an insulating partition plate which is separated among the micro switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322677400.3U CN220914143U (en) | 2023-10-07 | 2023-10-07 | Auxiliary contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322677400.3U CN220914143U (en) | 2023-10-07 | 2023-10-07 | Auxiliary contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914143U true CN220914143U (en) | 2024-05-07 |
Family
ID=90911089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322677400.3U Active CN220914143U (en) | 2023-10-07 | 2023-10-07 | Auxiliary contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914143U (en) |
-
2023
- 2023-10-07 CN CN202322677400.3U patent/CN220914143U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |