Auxiliary switch and circuit breaker

Abstract

The utility model discloses an auxiliary switch and a circuit breaker. The auxiliary switch comprises a mounting rack, a switch module and a touch pressing plate. The switch module is fixed on the mounting frame, the touch pressing plate is movably arranged on the mounting frame, and the switch module is triggered through the touch pressing plate; each switch module is externally provided with a power connection pin. A perforated plate is fixed on the mounting frame, plug bush jacks are formed in the perforated plate at positions corresponding to the power connection pins in a penetrating manner, and plug bushes on an external wire are suitable for penetrating into the plug bush jacks to be connected with the power connection pins in an inserted manner. The auxiliary switch is reasonable in structural design, the plug bush is limited to prevent the plug bush from skewing after being plugged with the power connection pin, the problem of short circuit is avoided, and the auxiliary switch has good practicability.

Description

Technical Field

[0001] The utility model relates to an auxiliary switch and a circuit breaker, belonging to the field of electrical switch structure design. Background Art

[0002] As a part of the main switch, the auxiliary switch is commonly used in frame circuit breakers (also called universal circuit breakers), and can be used for the opening, closing, signal control and interlock protection of the secondary control circuit. A switch module is arranged in the auxiliary switch, and protruding power connection pins are arranged on the switch module. When the auxiliary switch is installed, the socket of the external wire is inserted into the power connection pin. In actual use, when the number of power connection pins on the switch module is large and relatively concentrated, the distance between adjacent sockets is relatively close after the socket is inserted into the power connection pin. Due to the lack of limitation on the socket, the socket is prone to skew and contact with the adjacent socket, resulting in a short circuit problem. Content of the Utility Model

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

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

[0005] In a first aspect, the utility model provides an auxiliary switch, which includes a mounting frame, a switch module and a contact pressure plate;

[0006] The switch module is fixed on the mounting frame, the contact pressure plate is movably arranged on the mounting frame, and the switch module is triggered by the contact pressure plate; each switch module has power connection pins on the outside;

[0007] A perforated plate is fixed on the mounting frame, and socket insertion holes are provided through the corresponding positions of the perforated plate and each power connection pin. The socket on the external wire is adapted to pass through the socket insertion hole and be inserted into the power connection pin.

[0008] In some embodiments, protruding partition pieces are arranged between adjacent power connection pins on the outside of the switch module.

[0009] In some embodiments, the partition piece is supported on the perforated plate.

[0010] In some embodiments, the end of the power connection pin does not extend out of the outer surface of the perforated plate.

[0011] In some embodiments, the contact pressure plate is provided with an outwardly protruding driving part, and a roller is installed on the driving part, and the roller can freely rotate around its own axis.

[0012] In some embodiments, the perforated plate is snap-connected or fixedly connected to the mounting frame by screws.

[0013] In some embodiments, there are two mounting brackets. A plurality of switch modules are arranged side by side between the two mounting brackets. The touch pressure plate is arranged between the two mounting brackets and above the switch modules. Buttons are arranged on the upper parts of the switch modules, and the power connection pins are arranged at the bottoms of the switch modules; the mounting brackets and the switch modules are locked tightly by bolts.

[0014] In a second aspect, the present utility model provides a circuit breaker, including an auxiliary switch, and the auxiliary switch adopts the auxiliary switch described in any one of the above.

[0015] The positive effects of the present utility model are as follows: In the present utility model, the structure of the auxiliary switch is optimized. During actual use, the socket on the external wire is inserted into the socket jack and forms a plug connection with the power connection pin, thereby electrically connecting the external wire and the switch module. The position of the socket can be restricted through the socket jack to prevent the socket from being skewed and then contacting the adjacent socket to cause a short circuit, ensuring the use performance. 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 following-described drawings 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 It is a schematic structural diagram of the auxiliary switch in the present utility model;

[0018] Figure 2 Viewed from another angle Figure 1 It is a schematic structural diagram when observing the shown auxiliary switch;

[0019] Figure 3 It is a schematic structural diagram of the auxiliary switch in the present utility model when the porous plate is removed.

[0020] The reference numerals shown in the drawings: 1 - mounting bracket; 2 - switch module; 21 - power connection pin; 22 - partition piece; 3 - touch pressure plate; 31 - driving part; 32 - roller; 4 - porous plate; 41 - socket jack. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0022] 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, movement conditions, etc. between components in a specific posture (as shown in the attached drawings). If the specific posture changes, the directional indications will also change accordingly. In the present utility model, unless otherwise clearly specified 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 communication inside 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 circumstances.

[0023] 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 protection scope required by the present utility model.

[0024] The auxiliary switch structure provided in the embodiments of the present utility model is as Figures 1 to 3 shown, which includes a mounting frame 1, a switch module 2, and a touch pressure plate 3; the switch module 2 is fixed on the mounting frame 1, the touch pressure plate 3 is movably arranged on the mounting frame 1, and the switch module 2 is triggered by the touch pressure plate 3; each switch module 2 has a power connection pin 21 outside; a perforated plate 4 is fixed on the mounting frame 1, and insertion sleeve insertion holes 41 are provided through the corresponding positions of the perforated plate 4 and the power connection pins 21, and the insertion sleeves on the external wires are adapted to penetrate into the insertion sleeve insertion holes 41 and be inserted into the power connection pins 21. In this embodiment, the auxiliary switch structure is optimized. During actual use, the insertion sleeves on the external wires are penetrated into the insertion sleeve insertion holes 41 and inserted into the power connection pins 21 to electrically connect the external wires and the switch module 2, and the position of the insertion sleeve can be restricted through the insertion sleeve insertion holes 41 to prevent the insertion sleeve from being skewed and contacting adjacent insertion sleeves to cause a short circuit, ensuring the use performance.

[0025] As Figure 1 and Figure 2 shown, there are two mounting frames 1 in this embodiment. A plurality of switch modules 2 are arranged side by side between the two mounting frames 1. The touch pressure plate 3 is arranged between the two mounting frames 1 and above the switch modules 2. Buttons are arranged on the upper parts of the switch modules 2. When the touch pressure plate 3 is pressed downward, the buttons are touched to control the switching of the on / off state of the switch modules 2. The power connection pins 21 are arranged at the bottoms of the switch modules 2, and the corresponding perforated plate 4 is fixed at the bottom ends of the mounting frames 1; the mounting frames 1 and the switch modules 2 are locked by bolts.

[0026] Optionally, the switch module 2 can adopt switches such as microswitches and travel switches.

[0027] Optionally, the porous plate 4 and the mounting bracket 1 are fixedly connected by snap fit, or the porous plate 4 and the mounting bracket 1 are fixedly connected by screws.

[0028] As Figure 2 shown, a protruding partition piece 22 is provided between adjacent power connection pins 21 on the outside of the switch module 2. The partition piece 22 plays an effective isolation role between adjacent power connection pins 21, thereby enhancing the insulation protection performance. Further, the end of the partition piece 22 abuts against the porous plate 4 to support the porous plate 4, which can enhance the compressive deformation resistance of the porous plate 4.

[0029] In order to prevent the end of the power connection pin 21 from being easily deformed by external force collision when it extends out of the porous plate 4, it is preferably set that the end of the power connection pin 21 does not extend out of the outer surface of the porous plate 4.

[0030] As Figure 1 shown, the touch pressure plate 3 is provided with an outwardly protruding driving portion 31, and a roller 32 is installed on the driving portion 31. The roller 32 can rotate freely around its own axis. When controlling the auxiliary switch, the touch pressure member applies a force to the roller 32 to push the touch pressure plate 3 to move, and then the touch pressure plate 3 triggers the switch module 2. The contact action between the roller 32 and the touch pressure member is flexible and smooth.

[0031] In a second aspect, an embodiment of the present invention provides a circuit breaker, including an auxiliary switch, and the auxiliary switch adopts the auxiliary switch described in any of the above solutions. Since the auxiliary switch in the above implementation solution is adopted, the circuit breaker has the corresponding technical effects of the auxiliary switch, which will not be elaborated here.

[0032] 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 can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered by 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, comprising a mounting frame (1), a switch module (2) and a touch pad (3); The switch module (2) is fixed on the mounting frame (1), and the touch plate (3) is movably arranged on the mounting frame (1), and the switch module (2) is triggered by the touch plate (3); each switch module (2) has an electrical connection pin (21) on the outside; It is characterized in that A perforated plate (4) is fixed on the mounting frame (1), and socket holes (41) are provided on the perforated plate (4) at positions corresponding to the power connection pins (21). The sockets on the external wires are suitable for passing through the socket holes (41) and being plugged into the power connection pins (21).

2. The auxiliary switch according to claim 1, characterized in that: The switch module (2) is provided with a protruding barrier sheet (22) between adjacent electrical connection pins (21) on the outside.

3. The auxiliary switch according to claim 2, characterized in that: The baffle plate (22) is supported on the porous plate (4).

4. The auxiliary switch according to claim 1, characterized in that: The ends of the power connection pins (21) do not extend out of the outer surface of the porous plate (4).

5. The auxiliary switch according to claim 1, characterized in that: The touch plate (3) is provided with a driving part (31) protruding outwards, and the driving part (31) is provided with a roller (32), and the roller (32) can rotate freely around its own axis.

6. The auxiliary switch according to claim 1, characterized in that: The porous plate (4) is snap-fitted to the mounting frame (1) or fixedly connected via screws.

7. The auxiliary switch according to claim 1, characterized in that: The mounting frames (1) include two, a plurality of switch modules (2) are arranged side by side between the two mounting frames (1), the touch panel (3) is arranged between the two mounting frames (1) and above the switch modules (2), a button is arranged on the top of the switch module (2), and the power connection pin (21) is arranged on the bottom of the switch module (2); the mounting frame (1) and the switch module (2) are locked by bolts.

8. A circuit breaker, comprising an auxiliary switch, characterized in that: The auxiliary switch is the auxiliary switch according to any one of claims 1 to 7.

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