Auxiliary contact module for a disconnector

Abstract

The utility model relates to an auxiliary contact module of isolator, including installation shell, the static contact bridge in installation shell and contact head support subassembly, the contact head support subassembly includes contact head support, movable contact bridge and spring, the contact head support is slidably assembled in installation shell, movable contact bridge is slidably installed in contact head support, spring acts on contact head support and movable contact bridge, the sliding stroke end position of contact head support is equipped with the limit structure, when contact head support drives movable contact bridge to the direction sliding of corresponding static contact bridge, make movable contact bridge be static contact bridge and touch limit, and contact head support continues to slide and is blocked by limit structure, spring can make movable contact bridge elastic and press in static contact bridge. Limit structure prevents over sliding, avoids bad contact and component damage, spring guarantees contact bridge stable contact, reduces abrasion, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the technical field of disconnector switch accessories, specifically an auxiliary contact module for a disconnector switch. Background Technology

[0002] Disconnecting switches, as low-voltage electrical appliances capable of connecting and disconnecting current under normal circuit conditions, are widely used. Auxiliary contact modules are accessories to disconnecting switches, typically mounted sideways and connected to the switch's drive mechanism, used to control other electrical equipment or detect the operating status of circuits. However, traditional auxiliary contacts have structural design shortcomings, such as poor installation and positioning accuracy and susceptibility to component damage during movement. Therefore, there is an urgent need to optimize the structure of auxiliary contacts. Utility Model Content

[0003] The purpose of this utility model is to provide an auxiliary contact module for a disconnecting switch to solve the problems mentioned in the background art and improve the installation stability and movement reliability of the auxiliary contact.

[0004] The technical solution of this utility model is as follows: An auxiliary contact module for a disconnecting switch includes a mounting housing, a stationary contact bridge located within the mounting housing, and a contact support assembly. The contact support assembly includes a contact support, a moving contact bridge, and a spring.

[0005] The contact support is slidably mounted on the mounting housing, the movable contact bridge is slidably mounted on the contact support, and the spring acts on the contact support and the movable contact bridge;

[0006] The contact support has a limiting structure at the end of its sliding stroke. When the contact support drives the moving contact bridge to slide towards the corresponding stationary contact bridge, the moving contact bridge is stopped by the stationary contact bridge. The contact support is blocked from sliding further by the limiting structure. The spring can elastically press the moving contact bridge against the stationary contact bridge.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] The ingenious design of the limiting structure restricts the sliding stroke supported by the contact to a safe range, effectively avoiding electrical connection failure or damage caused by excessive sliding.

[0009] The elastic compression of the spring not only ensures good contact pressure between the moving and stationary contact bridges, helping to reduce wear during operation, but also buffers the impact force on the contact support during sliding to a certain extent, extending the service life of the equipment; at the same time, it provides a reliable elastic restoring force for the contact support.

[0010] A further feature of this invention is that the contact support is slidably mounted in the sliding groove of the mounting shell. The limiting structure includes a limiting block provided on the side of the contact support and a linkage through hole opened on the sliding groove. The limiting block is slidably adapted to the linkage through hole. By the limiting block abutting against the upper and lower end walls of the linkage through hole, the sliding stroke of the contact support is limited.

[0011] With the above-mentioned further settings, the sliding adaptation of the limiting block within the linkage through hole can effectively prevent excessive sliding of the contact support, making the sliding of the contact support more stable and reliable.

[0012] A further feature of this invention is that the movable contact bridge is slidably installed in the mounting space supported by the contact. The mounting space has sliding holes on both sides, and the movable contact bridge has contact pieces at both ends. The contact pieces extend out of the mounting space from the corresponding sliding holes and abut against the upper and lower end walls of the sliding holes to limit the sliding stroke of the movable contact bridge. The spring is located in the mounting space, with one end abutting against the mounting space and the other end abutting against the middle of the movable contact bridge.

[0013] By adopting the above-mentioned further settings, the stroke limit is achieved by the contact piece abutting against the upper and lower end walls of the sliding hole, so that the sliding stroke of the moving contact bridge can be precisely controlled, which further improves the stability and reliability of the disconnector auxiliary contact module.

[0014] A further feature of this invention is that the upper and lower ends of the contact support are each equipped with a moving contact bridge, namely an upper moving contact bridge and a lower moving contact bridge; the mounting shell is correspondingly provided with an upper stationary contact bridge and a lower stationary contact bridge.

[0015] When the contact supports upward sliding, the upper moving contact bridge is stopped by the upper stationary contact bridge, and the contact supports further upward sliding but is blocked by the limiting structure; when the contact supports downward sliding, the lower moving contact bridge is stopped by the lower stationary contact bridge, and the contact supports further downward sliding but is blocked by the limiting structure.

[0016] With the above-mentioned further configuration, during the operation of the disconnecting switch from closing to opening, the contacts will be driven to move up and down, thereby switching contact with the corresponding upper and lower stationary contact bridges through the upper and lower moving contact bridges, respectively, to change the on / off state of the auxiliary circuit.

[0017] A further feature of this invention is that the contact support has two mounting spaces, an upper movable contact bridge and a lower movable contact bridge, which are respectively located in the two mounting spaces. Each mounting space is provided with a spring. The spring in the upper mounting space abuts against the lower bottom wall of the mounting space and the upper movable contact bridge, while the spring in the lower mounting space abuts against the upper top wall of the mounting space and the lower movable contact bridge.

[0018] With the above-mentioned further configuration, the upper and lower springs respectively abut against the contact support, which facilitates the sliding reset of the contact support during the up-and-down sliding process. Furthermore, the upper and lower moving contact bridges are subjected to the action of the springs in their respective installation spaces, making the contact between the moving contact bridge and the corresponding stationary contact bridge tighter and more stable, thus improving the reliability of the auxiliary circuit's on / off state.

[0019] A further feature of this invention is that a limiting structure is provided between the middle part of the contact support and the mounting shell.

[0020] With the above-mentioned further configuration, the limiting structure is set in the middle part of the contact support, which can more effectively control the sliding range of the contact support and prevent it from slipping out of the predetermined position due to excessive sliding, thereby further enhancing the stability and safety of the auxiliary contact module.

[0021] A further feature of this invention is that the mounting housing includes a housing base and a housing cover, the housing cover being disposed on the housing base to form an assembly space, the static contact bridge and the contact support assembly being disposed within the assembly space, and the sliding grooves being provided on the opposite sides of the housing cover and the housing base, respectively.

[0022] With the further configuration described above, the mounting housing is divided into two parts: a housing base and a housing cover. The housing cover can be placed on the housing base, thus creating a closed assembly space. Within this space, the stationary contact bridge and contact support components are properly installed and secured. Furthermore, sliding grooves are cleverly designed on the opposite sides of both the housing cover and the housing base. This design not only provides the necessary channel for the vertical sliding of the contact support but also ensures the smoothness and accuracy of the sliding process.

[0023] A further feature of this invention is that a cantilever is provided on the contact support surface, and an opening is provided on the mounting housing. The cantilever extends out of the mounting housing from the opening and is used for transmission connection with the drive mechanism of the disconnecting switch.

[0024] With the above-mentioned further configuration, a cantilever structure is added to the surface of the contact support. This design cleverly matches the opening on the mounting housing, allowing the cantilever to extend out of the mounting housing from the opening. This feature enables it to be easily connected to the drive mechanism of the disconnecting switch, and the cantilever is slidably positioned inside the opening. Attached Figure Description

[0025] Figure 1 This is a structural diagram of a specific embodiment of the present utility model;

[0026] Figure 2 This is an exploded structural diagram of a specific embodiment of the present utility model;

[0027] Figure 3 This is an internal structural diagram of a specific embodiment of the present utility model;

[0028] Figure 4 This is a cross-sectional view of a specific embodiment of the present utility model;

[0029] Figure 5 This is a structural diagram of the contact support component according to a specific embodiment of the present utility model;

[0030] Figure 6 This is a structural diagram of the shell cover of a specific embodiment of the present utility model.

[0031] In the diagram: mounting housing 1, stationary contact bridge 2, upper stationary contact bridge 2a, lower stationary contact bridge 2b, contact support assembly 3, contact support 31, limit block 311, mounting space 312, sliding hole 313, cantilever 314, moving contact bridge 32, contact piece 321, upper moving contact bridge 32a, lower moving contact bridge 32b, spring 33, sliding groove 10, linkage through hole 101, housing base 11, housing cover 12, opening 13, snap fastener 14, wiring terminal 4. Detailed Implementation

[0032] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] like Figure 1-6 As shown, an auxiliary contact module for a disconnecting switch according to this utility model includes a mounting housing 1, a stationary contact bridge 2 located inside the mounting housing, a contact support assembly 3, and a terminal block 4. The contact support assembly 3 includes a contact support 31, a moving contact bridge 32, and a spring 33. The contact support 31 is slidably mounted on the mounting housing 1, the moving contact bridge 32 is slidably mounted on the contact support 31, and the spring 33 acts on the contact support 31 and the moving contact bridge 32.

[0034] The contact support 31 has a limiting structure at the end of its sliding stroke. When the contact support 31 drives the moving contact bridge to slide towards the corresponding stationary contact bridge, the moving contact bridge 32 is stopped by the stationary contact bridge 2. The contact support 31 continues to slide but is blocked by the limiting structure. The spring 33 can elastically press the moving contact bridge 32 against the stationary contact bridge 2.

[0035] The contact support 31 is slidably mounted in the sliding groove 10 of the mounting shell 1. The limiting structure includes a limiting block 311 on the side of the contact support and a linkage through hole 101 opened in the sliding groove 10. The limiting block 311 is slidably adapted to the linkage through hole 101. By abutting against the upper and lower end walls of the linkage through hole 101, the sliding stroke of the contact support 31 is limited. Of course, a linkage through hole can be provided on the side of the contact support and a limiting block can be provided on the side wall of the sliding groove. The movable contact bridge 32 is slidably installed in the mounting space 312 of the contact support 31. The mounting space 312 has sliding holes 313 on both sides. The movable contact bridge 32 has contact pieces 321 at both ends. The contact pieces 321 extend out of the mounting space from the corresponding sliding holes 313. The contact pieces 321 abut against the upper and lower end walls of the sliding holes 313 to limit the sliding stroke of the movable contact bridge 32. The spring 33 is located in the mounting space 312. One end of the spring 33 abuts against the mounting space 312 and the other end abuts against the middle of the movable contact bridge 32. The contact support 31 has movable contact bridges installed at both its upper and lower ends, namely an upper movable contact bridge 32a and a lower movable contact bridge 32b; the mounting shell 1 has corresponding upper stationary contact bridges 2a and 2b. When the contact support 31 slides upward, the upper movable contact bridge 32a is stopped by the upper stationary contact bridge 2a, and the contact support 31 is blocked from sliding upward further by the stopping structure; when the contact support 31 slides downward, the lower movable contact bridge 32b is stopped by the lower stationary contact bridge 2b, and the contact support 31 is blocked from sliding downward further by the stopping structure. The contact support 31 has two mounting spaces 312, with the upper movable contact bridge 32a and the lower movable contact bridge 32b respectively located in the two mounting spaces 312. Springs 33 are installed in each of the two mounting spaces. The spring in the upper mounting space abuts against the lower bottom wall of the mounting space and the upper movable contact bridge, while the spring in the lower mounting space abuts against the upper top wall of the mounting space and the lower movable contact bridge. Alternatively, a spring can be provided, which is positioned between the upper moving contact bridge 32a and the lower moving contact bridge 32b.

[0036] Specifically, the limiting structure is provided between the middle part of the contact support 31 and the mounting shell 1. Limiting blocks are provided on both sides of the middle part of the contact support 31, and linkage through holes 101 are provided on both sides of the middle part of the sliding groove.

[0037] Specifically, the mounting housing 1 includes a housing base 11 and a housing cover 12, which are connected by screws or snaps. The housing cover 12 covers the housing base 11 to form an assembly space. The stationary contact bridge 2 and the contact support assembly 3 are both located within the assembly space. The sliding grooves 10 are respectively provided on the opposite sides of the housing cover 12 and the housing base 11. A cantilever 314 is provided on the surface of the contact support 31. The mounting housing 1 has an opening 13, and the cantilever 314 extends out of the mounting housing 1 from the opening 13 for transmission connection with the drive mechanism of the disconnecting switch. The side of the mounting housing with the opening has a snap fastener, which is used to hang, snap, or slide the housing to the side of the disconnecting switch housing. Alternatively, the mounting housing can be directly screwed onto the disconnecting switch housing.

[0038] The working principle of this utility model is as follows: In use, the mounting shell is installed on the outer shell of the disconnecting switch, and the cantilever of the contact support assembly is connected to the drive mechanism of the disconnecting switch. When the disconnecting switch operates to open or close, its drive mechanism drives the cantilever of the contact support to move, causing the contact support to slide up and down along the sliding groove, and the limit block slides synchronously in the linkage through hole. At the same time, the contact support drives the upper moving contact bridge to slide upward, and the upper moving contact bridge is elastically pressed against the upper stationary contact bridge by the upper spring; or the contact support drives the lower moving contact bridge to slide downward, and the lower moving contact bridge is elastically pressed against the lower stationary contact bridge by the lower spring, thereby completing the conduction or disconnection of the auxiliary circuit. This realizes that the on / off state of the disconnecting switch is reflected in the auxiliary circuit in the form of an electrical signal, and then the external device of the auxiliary circuit receives the electrical signal to further realize subsequent circuit control.

[0039] It should be noted that in the description of this utility model, all directional indicators (such as up, down, forward, backward, etc.) are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0040] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a number" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. An auxiliary contact module for a disconnecting switch, comprising a mounting housing (1), a stationary contact bridge (2) located within the mounting housing, and a contact support assembly (3), characterized in that: The contact support assembly (3) includes a contact support (31), a moving contact bridge (32), and a spring (33). The contact support (31) is slidably mounted on the mounting shell (1), the movable contact bridge (32) is slidably mounted on the contact support (31), and the spring (33) acts on the contact support (31) and the movable contact bridge (32). The contact support (31) has a limiting structure at the end of its sliding stroke. When the contact support (31) drives the moving contact bridge to slide towards the corresponding stationary contact bridge, the moving contact bridge (32) is stopped by the stationary contact bridge (2), and the contact support (31) continues to slide but is blocked by the limiting structure. The spring (33) can elastically press the moving contact bridge (32) against the stationary contact bridge (2).

2. The auxiliary contact module of the disconnecting switch according to claim 1, characterized in that, The contact support (31) can be slidably mounted in the sliding groove (10) of the mounting shell (1). The limiting structure includes a limiting block (311) provided on the side of the contact support and a linkage through hole (101) opened on the sliding groove (10). The limiting block (311) is slidably adapted to the linkage through hole (101). The limiting block (311) abuts against the upper and lower end walls of the linkage through hole (101) to limit the sliding stroke of the contact support (31).

3. The auxiliary contact module of the disconnecting switch according to claim 1, characterized in that, The movable contact bridge (32) is slidably installed in the installation space (312) of the contact support (31). The installation space (312) has sliding holes (313) on both sides. The movable contact bridge (32) has contact pieces (321) at both ends. The contact pieces (321) extend out of the installation space from the corresponding sliding holes (313). The contact pieces (321) abut against the upper and lower end walls of the sliding holes (313) to limit the sliding stroke of the movable contact bridge (32). The spring (33) is located in the installation space (312). One end of the spring (33) abuts against the installation space (312) and the other end abuts against the middle of the movable contact bridge (32).

4. The auxiliary contact module of the disconnecting switch according to claim 1, 2, or 3, characterized in that, The upper and lower ends of the contact support (31) are equipped with moving contact bridges, namely the upper moving contact bridge (32a) and the lower moving contact bridge (32b); the mounting shell (1) is correspondingly provided with an upper stationary contact bridge (2a) and a lower stationary contact bridge (2b). When the contact support (31) slides upward, the upper moving contact bridge (32a) is stopped by the upper stationary contact bridge (2a), and the contact support (31) continues to slide upward but is blocked by the limiting structure; when the contact support (31) slides downward, the lower moving contact bridge (32b) is stopped by the lower stationary contact bridge (2b), and the contact support (31) continues to slide downward but is blocked by the limiting structure.

5. The auxiliary contact module of the disconnecting switch according to claim 4, characterized in that, The contact support (31) is provided with two installation spaces (312), an upper movable contact bridge (32a) and a lower movable contact bridge (32b) are respectively provided in the two installation spaces (312), and springs (33) are respectively provided in the two installation spaces. The spring in the upper installation space is abutted between the lower bottom wall of the installation space and the upper movable contact bridge, and the spring in the lower installation space is abutted between the upper top wall of the installation space and the lower movable contact bridge.

6. The auxiliary contact module of the disconnecting switch according to claim 4, characterized in that, The limiting structure is provided between the middle part of the contact support (31) and the mounting shell (1).

7. The auxiliary contact module of the disconnecting switch according to claim 2, characterized in that, The mounting housing (1) includes a housing base (11) and a housing cover (12). The housing cover (12) covers the housing base (11) to form an assembly space. The static contact bridge (2) and the contact support assembly (3) are both located in the assembly space. The sliding groove (10) is provided on the opposite side of the housing cover (12) and the housing base (11).

8. The auxiliary contact module of the disconnecting switch according to claim 1, 2, or 3, characterized in that, The contact support (31) has a cantilever (314) on its surface, and the mounting housing (1) has an opening (13). The cantilever (314) extends out of the mounting housing (1) from the opening (13) and is used to drive the disconnector switch.

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