Auxiliary switch

Abstract

The utility model discloses an auxiliary switch which comprises a side frame, a switch body and a touch pressing block. A plurality of switch bodies are fixed between the two side frames side by side, and a touch pressing block is arranged between the two side frames in a vertically movable mode and located above the switch bodies. Each switch body comprises a shared shell and at least two groups of switch components arranged in the shared shell, each switch component is provided with a button upwards extending out of the shared shell, and the button is pressed by pressing the touch block downwards so as to switch the states of the switch components. The auxiliary switch is reasonable in structural design, convenient to assemble, stable in use performance and good in practicability.

Description

Technical Field

[0001] The utility model relates to an auxiliary switch, belonging to the field of the structural design of electric switches. Background Art

[0002] As a part of the main switch, the auxiliary switch is often used in a frame circuit breaker (also called an all-in-one circuit breaker), and can be used for the opening, closing, signal control and interlock protection of a secondary control circuit. In the prior art, most of the auxiliary switches applied to the frame circuit breaker are provided with three to four switch units. The switch units are synchronously controlled through a linkage mechanism. The linkage mechanism is usually composed of a plurality of connected components. The existing auxiliary switches mainly have the problems of complex structure, large number of parts and inconvenient assembly, resulting in low production efficiency. Content of the Utility Model

[0003] In view of this, the utility model aims to provide an auxiliary switch to solve the deficiencies in the background art.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] The utility model provides an auxiliary switch, which includes side frames, a switch body and a touch pressure block; a plurality of switch bodies are fixedly arranged side by side between two side frames, and a touch pressure block is movably arranged up and down between the two side frames and is located above the switch body; each switch body includes a common housing, and at least two groups of switch components installed in the common housing, and each switch component has a button extending upward out of the common housing. Pressing the touch pressure block downward touches the button to switch the state of the switch component.

[0006] In some embodiments, the two side frames and the switch body are locked by bolts.

[0007] In some embodiments, a first spring is connected between the touch pressure block and the side frame and / or between the touch pressure block and the switch body, and the first spring provides an upward elastic force for the touch pressure block.

[0008] In some embodiments, each switch component has a power connection pin extending downward out of the common housing; a perforated plate is arranged below the switch body, the perforated plate is fixedly connected with the side frame, and jacks are provided at positions corresponding to the power connection pins on the perforated plate. The sockets on the external wire are adapted to penetrate into the jacks to be plugged with the power connection pins.

[0009] In some embodiments, each switch assembly includes two first stationary contacts, two second stationary contacts, a contact holder, a moving contact bridge, a lower spring, and an upper spring. The upper spring, the moving contact bridge, and the lower spring are sleeved on the contact holder in sequence from top to bottom. In the normal state, under the upward elastic force of the lower spring, the moving contact bridge contacts the two first stationary contacts. When the button is pressed downward to move the contact holder downward, the moving contact bridge is pushed downward by the upper spring, so that the moving contact bridge separates from the first stationary contacts and contacts the two second stationary contacts. The button is connected to the upper end of the contact holder, and the lower ends of the first stationary contacts and the second stationary contacts extend out of the common housing as the power connection pins.

[0010] In some embodiments, an upper spring is further sleeved on the contact holder, and the upper spring provides a downward elastic force for the moving contact bridge; the common housing is formed by mating a housing base and a housing cover.

[0011] In some embodiments, a downwardly protruding partition is provided between two adjacent power connection pins at the bottom end of the common housing, and the lower end of the partition abuts against the perforated plate.

[0012] In some embodiments, limiting stop strips extending in the vertical direction are formed on both sides of the switch body on the side frames.

[0013] In some embodiments, a stop boss is provided inside the side frame, and the stop boss and the edge of the touch pressing block are in stop cooperation to limit the touch pressing block from detaching from the side frame.

[0014] In some embodiments, an upwardly protruding convex block is provided at the upper end of the touch pressing block, and a roller is mounted on the convex block.

[0015] The positive effects of the present utility model are as follows: In the present utility model, the auxiliary switch structure is optimized. It consists of three main components: a side frame, a switch body, and a touch pressing block. The structure is simple. Moreover, multiple switch assemblies in the switch body can be installed in a common housing, saving space and materials, improving the structural compactness and production efficiency. And one touch pressing block can control multiple switch bodies, with a simple structure and centralized control achieved, making the operation more convenient and efficient. The manufacturing process is simple, which is conducive to reducing production costs and is suitable for applications in occasions where centralized control of multiple switches is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Structural schematic diagram of the auxiliary switch in the present utility model;

[0018] Figure 2 Structural schematic diagram of the auxiliary switch in the present utility model after removing one side frame;

[0019] Figure 3 Exploded view of the auxiliary switch in the present utility model;

[0020] Figure 4 Internal structural schematic diagram of the switch body in the present utility model;

[0021] Figure 5 Exploded view of the switch body in the present utility model.

[0022] Reference numerals shown in the figures: 1 - side frame; 11 - limit stop bar; 12 - stop clamping platform; 2 - switch body; 21 - common housing; 210 - partition sheet; 211 - housing base; 212 - housing cover; 22 - switch assembly; 221 - button; 222 - power connection pin; 223 - first static contact piece; 224 - second static contact piece; 225 - contact holder; 226 - moving contact bridge; 227 - lower spring; 228 - upper spring; 3 - touch pressure block; 31 - convex block; 32 - roller; 4 - first spring; 5 - perforated plate; 51 - jack. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. In the present utility model, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0026] The auxiliary switch structure provided in the embodiment of the present utility model is as Figures 1 to 5 shown, which includes a side frame 1, a switch body 2, and a touch pressure block 3; a plurality of switch bodies 2 are fixedly arranged side by side between two side frames 1, and the number of switch bodies 2 can be set according to customer needs. A touch pressure block 3 is movably arranged up and down between two side frames 1 and is located above the switch body 2; the side frame 1 is used to fix and support the entire switch structure; each switch body 2 includes a common housing 21 and at least two groups of switch components 22 installed in the common housing 21, and each switch component 22 has a button 221 extending upward from the common housing 21 and a power connection pin 222 extending downward from the common housing 21. The switch component 22 is a key component for realizing the on-off of the circuit. Its button 221 realizes the switching of the switch state through the pressing action of the touch pressure block 3, and the socket on the external wire is inserted into the power connection pin 222 to realize the electrical connection with the external circuit, which is convenient for wiring. Moreover, when the wire needs to be removed, the socket can be directly pulled off from the power connection pin 222. The auxiliary switch of this embodiment is composed of three main components: a side frame 1, a switch body 2, and a touch pressure block 3. The structure is simple, and multiple groups of switch components 22 in the switch body 2 can be installed in a common housing 21, saving space and materials, improving the structural compactness and production efficiency; moreover, one touch pressure block 3 can control multiple switch bodies 2, with a simple structure and centralized control realized, making the operation more simple and efficient, the manufacturing process is simple, which is beneficial to reducing the production cost, and is suitable for applications in occasions where centralized control of multiple-way switches is required.

[0027] In order to effectively fix the side frame 1 and the switch body 2 together, screw through holes are provided at corresponding positions on the side frame 1 and the switch body 2, and screws are used to pass through the screw through holes to lock the two side frames 1 and the switch body 2, so as to ensure the stability of the overall structure.

[0028] As Figure 2 shown, a first spring 4 is connected between the touch pressure block 3 and the switch body 2. The first spring 4 provides an upward elastic force for the touch pressure block 3. After the touch pressure block 3 is pressed, the first spring 4 is compressed. After removing the pressure on the touch pressure block 3, the first spring 4 releases the elastic force to make the touch pressure block 3 quickly reset; in actual operation, the first spring 4 may not be provided, and the touch pressure block 3 is pushed upward to reset by the upward reset of the button 221 in the switch component 22.

[0029] As a variant of the above-described embodiments, the first spring 4 may be disposed between the pressing block 3 and the side frame 1, or the first spring 4 may be disposed both between the pressing block 3 and the side frame 1 and between the pressing block 3 and the switch body 2.

[0030] In some embodiments, as Figure 2 shown, a perforated plate 5 is provided below the switch body 2. The perforated plate 5 is fixedly connected to the side frame 1. The perforated plate 5 is snap-connected to the bottom end of the side frame 1 through a snap structure, or the perforated plate 5 is fixed to the bottom end of the side frame 1 by screws. Through holes 51 are provided at positions corresponding to the respective electrical connection pins 222 on the perforated plate 5. The sockets on the external wires are adapted to penetrate into the through holes 51 and be inserted into the electrical connection pins 222. The position of the socket can be restricted through the through holes 51 to prevent the socket from contacting adjacent sockets after tilting and causing a short circuit, thereby ensuring the performance in use.

[0031] In some embodiments, as Figure 4 and Figure 5 shown, each switch assembly 22 includes two first stationary contact pieces 223, two second stationary contact pieces 224, a contact holder 225, a moving contact bridge 226, a lower spring 227, and an upper spring 228. The upper spring 228, the moving contact bridge 226, and the lower spring 227 are sleeved on the contact holder 225 in sequence from top to bottom. The upper end of the upper spring 228 abuts against the contact holder 225, and the lower end of the lower spring 227 abuts against the common housing 21. The moving contact bridge 226 can move up and down relative to the contact holder 225. In the normal state (when the button 221 is not pressed), under the upward elastic force of the lower spring 227, the moving contact bridge 226 contacts the two first stationary contact pieces 223 to form an electric current path. When the button 221 is pressed downward to move the contact holder 225 downward, the moving contact bridge 226 is pushed downward by the upper spring 228, so that the moving contact bridge 226 is separated from the first stationary contact pieces 223 and contacts the two second stationary contact pieces 224 to form an electric current path. The button 221 is connected to the upper end of the contact holder 225. The lower ends of the first stationary contact pieces 223 and the second stationary contact pieces 224 extend out of the common housing 21 as the electrical connection pins 222. Specifically, the elastic coefficient of the upper spring 228 is set to be greater than that of the lower spring 227. In the normal state, the upper spring 228 is in an uncompressed or slightly compressed state, and the lower spring 227 applies an upward elastic force to the moving contact bridge 226 to keep the moving contact bridge 226 in contact with the first stationary contact pieces 223. During the process of pressing the contact holder 225 downward, the moving contact bridge 226 is pushed downward by the upper spring 227 and compresses the lower spring 227. Under the elastic force of the upper spring 227, the moving contact bridge 226 can be kept in reliable contact with the second stationary contact pieces 224. In actual operation, in order to improve the insulation performance, an insulating pad may be disposed between the upper spring 228 and the moving contact bridge 226 and / or between the lower spring 227 and the stationary contact bridge 226, and the insulating pad is sleeved on the contact holder 225.

[0032] In some embodiments, as Figure 2 shown, a partition piece 210 protruding downward is provided between two adjacent power connection pins 222 at the bottom end of the common housing 21. The partition piece 210 can play an isolation role between two adjacent power connection pins 222, enhancing the safety protection performance. Further, the lower end of the partition piece 210 abuts against the porous plate 5, which can support the porous plate 5 and enhance the compressive capacity of the porous plate 5. Specifically, the common housing 21 is formed by fitting together a housing base 211 and a housing cover 212. During assembly, the switch assembly 22 is installed into the housing base 211, and then the housing cover 212 is covered on the housing base 211.

[0033] In some embodiments, as Figure 2 and Figure 3 shown, limiting stop strips 11 extending in the vertical direction are formed on both sides of the switch body 2 on the side frame 1. During assembly, the limiting stop strips 11 can play a limiting role on the switch body 2, enabling the switch body 2 to be quickly installed in place.

[0034] In some embodiments, as Figure 1 and Figure 2 shown, a stop boss 12 is provided inside the side frame 1. The stop boss 12 is in stop cooperation with the edge of the touch pressure block 3 to limit the touch pressure block 3 from detaching from the side frame 1, thereby ensuring the structural stability.

[0035] In some embodiments, as Figure 2 shown, a convex block 31 protruding upward is provided at the upper end of the touch pressure block 3. A roller 32 is installed on the convex block 31. The roller 32 can freely rotate around its own axis. An external trigger acts on the roller 32 to apply pressure to the touch pressure block 3 to push the touch pressure block 3 to move downward, with flexible and smooth movement.

[0036] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An auxiliary switch, characterized in that: The invention comprises a side frame (1), a switch body (2) and a pressure block (3); a plurality of switch bodies (2) are fixed side by side between two side frames (1); a pressure block (3) is movably arranged between the two side frames (1) and located above the switch bodies (2); each switch body (2) comprises a common housing (21) and at least two groups of switch components (22) installed in the common housing (21); each switch component (22) has a button (221) extending upward from the common housing (21); the button (221) is pressed downward by pressing the pressure block (3) to switch the state of the switch component (22).

2. The auxiliary switch according to claim 1, characterized in that: The two side frames (1) and the switch body (2) are locked by bolts.

3. The auxiliary switch according to claim 1, characterized in that: A first spring (4) is connected between the touch block (3) and the side frame (1) or / and between the touch block (3) and the switch body (2), and the first spring (4) provides an upward elastic force for the touch block (3).

4. The auxiliary switch according to claim 1, characterized in that: Each switch assembly (22) has a power connection pin (222) extending downward from the common housing (21); a porous plate (5) is provided below the switch body (2); the porous plate (5) is fixedly connected to the side frame (1); a plug hole (51) is provided on the porous plate (5) at a position corresponding to each power connection pin (222); and a socket on an external wire is suitable for passing through the plug hole (51) and plugging with the power connection pin (222).

5. The auxiliary switch according to claim 4, characterized in that: Each switch assembly (22) comprises two first stationary contact pieces (223), two second stationary contact pieces (224), a contact frame (225), a moving contact bridge (226), a lower spring (227) and an upper spring (228), wherein the upper spring (228), the moving contact bridge (226) and the lower spring (227) are sequentially mounted on the contact frame (225) from top to bottom. In a normal state, under the upward elastic force of the lower spring (227), the moving contact bridge (226) and the two first stationary contact pieces (223) are moved. When the button (221) is pressed downward to move the contact frame (225) downward, the upper spring (228) pushes the movable contact bridge (226) downward, thereby separating the movable contact bridge (226) from the first stationary contact piece (223) and making contact with the two second stationary contact pieces (224). The button (221) is connected to the upper end of the contact frame (225), and the lower ends of the first stationary contact piece (223) and the second stationary contact piece (224) extend out of the common housing (21) to serve as the power connection pin (222).

6. The auxiliary switch according to claim 4, characterized in that: The common shell (21) is composed of a shell base (211) and a shell cover (212) that are joined together.

7. The auxiliary switch according to claim 4, characterized in that: A downwardly protruding baffle plate (210) is provided at the bottom end of the common shell (21) between two adjacent power connection pins (222), and the lower end of the baffle plate (210) abuts against the porous plate (5).

8. The auxiliary switch according to claim 1, characterized in that: The side frame (1) is formed with limit stop bars (11) extending in the up-down direction on both sides of the switch body (2).

9. The auxiliary switch according to claim 1, characterized in that: A stopper (12) is provided on the inner side of the side frame (1), and the stopper (12) cooperates with the edge stopper of the touch-pressure block (3) to limit the touch-pressure block (3) from leaving the side frame (1).

10. The auxiliary switch according to claim 1, characterized in that: The upper end of the contact block (3) is provided with a convex block (31) protruding upwards, and a roller (32) is mounted on the convex block (31).

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