A contactor auxiliary microswitch mounting and fixing structure

Abstract

The utility model discloses an installation fixed structure of auxiliary microswitch of contactor, include: microswitch, arc separation cover, and microswitch is equipped with positioning hole and lead -out foot, and the arc separation cover is equipped with positioning column, insert piece and buckle, positioning column is equipped with in positioning hole, and insert piece and lead -out foot elastic interference abutment cooperation, two buckles are connected in the opposite sides of microswitch along X axle direction, and the electrical connection of lead -out foot and insert piece is realized with the mode of elastic interference abutment cooperation to the three -direction restriction of microswitch with positioning column and buckle, and the fixed effect and electrical connection reliability of microswitch are ensured, and installation and dismounting are simple and quick, need not professional soldering tin operation, reduce the technical requirement to operating personnel, improve installation efficiency, be convenient for subsequent maintenance and replacement.

Description

Technical Field

[0001] This utility model relates to the field of epoxy high-voltage DC contactors, specifically to a mounting and fixing structure for a contactor auxiliary micro switch. Background Technology

[0002] In the installation of auxiliary microswitches for existing epoxy high-voltage DC contactors, soldering is typically used for fixing. However, soldering has several drawbacks, such as its complexity, the need for skilled technicians, and the potential for incomplete soldering or detachment due to uneven heating, affecting the reliability of the connection between the microswitch and the contactor. Furthermore, traditional soldering methods are inconvenient for subsequent maintenance and replacement; removing the solder and replacing the microswitch after a malfunction is cumbersome. Utility Model Content

[0003] The purpose of this utility model is to disclose an installation and fixing structure for a contactor-assisted micro switch, which has a good fixing effect and is simple and quick to install and disassemble, reducing the technical requirements for operators.

[0004] To achieve the above objectives, this utility model discloses a mounting and fixing structure for a contactor-assisted micro switch, comprising: A micro switch, which has a positioning hole extending along the Y-axis and a lead extending along the Z-axis; An arc-blocking cover is provided with a positioning post extending along the Y-axis, a insert, and two buckles arranged along the X-axis. The X-axis is perpendicular to the Y-axis and Z-axis, the Y-axis is perpendicular to the Z-axis, the positioning pin passes through the positioning hole, the insert and the lead-out foot are elastically interference-fitted, and two buckles are engaged on opposite sides of the micro switch along the X-axis and restrict the movement of the micro switch in the Z-axis, so as to restrict the micro switch on the arc shield in the three-dimensional coordinate system.

[0005] As an optional implementation, the positioning post is located between the two latches.

[0006] As an optional implementation, the number of positioning posts is not less than two, and at least two positioning posts are arranged at intervals. The number of positioning holes is the same as the number of positioning posts and their positions correspond one-to-one.

[0007] As an optional implementation, the outer side of the fixing end of the buckle is provided with a plate-shaped reinforcing part.

[0008] As an optional implementation, both buckles have plate-shaped reinforcing parts on their outer sides at the fixing ends.

[0009] As an alternative implementation, the reinforcing part is perpendicular to the rooting surface of the buckle, and in the Y-axis direction, the length of the reinforcing part is less than the length of the buckle.

[0010] As an optional implementation, the inner side of the free end of the buckle is provided with a latch.

[0011] As an optional implementation, the outer periphery of the arc-blocking cover is recessed inward to form a first receiving groove, the positioning post and the buckle are both disposed in the first receiving groove, the insert is inserted through the first receiving groove, and the micro switch is installed in the first receiving groove.

[0012] As an optional implementation, one end of the arc shield in the Z-axis direction is recessed to form a second receiving groove. The second receiving groove is located on one side of the first receiving groove in the Z-axis direction. The insert passes through the isolation wall between the first receiving groove and the second receiving groove, so that part of the insert is located in the first receiving groove and the other part is located in the second receiving groove.

[0013] As an optional implementation, a boss is provided on the bottom wall of the first receiving groove in the Y-axis direction, two buckles are located opposite each other on both sides of the boss, and a positioning post is provided on the boss.

[0014] As an optional implementation, the inner wall of the arc-blocking cover is provided with reinforcing ribs at the positions corresponding to the snap-fit ​​anchoring surfaces, and the reinforcing ribs extend along the Z-axis direction.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The micro switch is restricted in three directions by using positioning posts and clips, and the electrical connection between the lead and the plug is achieved by using a flexible interference fit. This ensures the fixing effect of the micro switch and the reliability of the electrical connection. Moreover, the installation and disassembly are simple and quick, without the need for professional soldering, which reduces the technical requirements of the operators, improves the installation efficiency, and facilitates subsequent maintenance and replacement. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural diagram of a micro switch installed in an arc-damping enclosure.

[0018] Figure 2 for Figure 1 The diagram shows the front view of the structure.

[0019] Figure 3 for Figure 1 The diagram shows a cross-sectional view of the structure in the XY direction.

[0020] Figure 4 for Figure 1 The diagram shows a cross-sectional view of the structure in the YZ direction and a magnified view of a portion of the microswitch.

[0021] in: 1. Micro switch; 11. Positioning hole; 12. Lead-out foot; 2. Arc shield; 21. Positioning post; 22. Insert; 23. Buckle; 231. Locking tenon; 232. Reinforcing part; 24. First receiving groove; 25. Second receiving groove; 26. Boss; 27. Reinforcing rib. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not 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 effort are within the protection scope of the present utility model.

[0023] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0024] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0025] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0026] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0027] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0028] See Figure 1 and Figure 2 The contactor includes a micro switch (1) and an arc shield (2). The micro switch (1) is provided with a lead-out pin (12) and a positioning hole (11) that passes through it. The arc shield (2) is provided with a positioning post (21), a insert (22) and a buckle (23). During assembly, the positioning post (21) passes through the positioning hole (11), the insert (22) and the lead-out pin (12) are elastically pressurized and engaged, and the buckle (23) is engaged with the micro switch (1).

[0029] Using a three-dimensional rectangular coordinate system composed of the X-axis, Y-axis, and Z-axis as a reference, the positioning hole (11) extends along the Y-axis, the lead-out foot (12) extends along the Z-axis, and there are two positioning posts (21), each extending along the Y-axis and arranged along the X-axis. The number of positioning holes (11) is the same as the number of positioning posts (21), and their positions correspond one-to-one. There are two latches (23), arranged along the X-axis, with the positioning post (21) located between the two latches (23). Thus, the positioning post (21) restricts the movement of the micro switch (1) in the X-axis and Z-axis directions, and the two latches (23) engage. On opposite sides of the micro switch (1) along the X-axis, the latches (23) restrict the movement of the micro switch (1) in the X-axis direction and restrict the movement of the micro switch (1) in the Z-axis direction. In this way, the micro switch (1) is restricted on the arc shield (2) in the three-dimensional coordinate system. At the same time, the lead-out pin (12) and the insert (22) adopt an elastic interference fit to realize the electrical connection between the lead-out pin (12) and the insert (22), which ensures the fixing effect of the micro switch (1) and the reliability of the electrical connection. Moreover, the installation and disassembly are simple and quick, without the need for professional soldering operations, which reduces the technical requirements of the operators, improves the installation efficiency, and facilitates subsequent maintenance and replacement.

[0030] Moreover, in the above scheme, the parallel spacing of the two positioning posts (21) ensures that when the positioning hole (11) of the micro switch (1) is inserted into the two positioning posts (21), the parallel restriction of the two positioning posts (21) prevents the micro switch (1) from rotating around the Y-axis or moving in the XZ direction during initial installation. No subsequent position adjustment is required, which ensures that the lead-out pin (12) and the insert (22) can be precisely matched, and also prevents it from shaking or shifting during operation.

[0031] In other preferred embodiments, the number of positioning posts (21) can be three, four, etc.; in addition, the arrangement of two positioning posts (21) can be along the Z-axis or diagonally. If there are other means to help limit the rotation of the micro switch (1), or if the rotation restriction of the micro switch (1) during initial installation is not considered, only one positioning post (21) can be used.

[0032] In this embodiment, to facilitate the concealment of components and ensure aesthetic appearance, preferably, the arc shield (2) is provided with a first receiving groove (24) and a second receiving groove (25). The first receiving groove (24) is formed by an inward indentation from the outer periphery of the arc shield (2), and the positioning post (21) and the buckle (23) are both located within the first receiving groove (24). The micro switch (1) is installed within the first receiving groove (24). The second receiving groove (25) is formed by an inward indentation from one end of the arc shield (2) along the Z-axis direction, and the second receiving groove (25) is located on one side of the first receiving groove (24) along the Z-axis direction. Figure 1 As shown in the direction reference, the second receiving groove (25) is located above the first receiving groove (24). There is an isolation wall between the first receiving groove (24) and the second receiving groove (25) to separate the second receiving groove (25) and the first receiving groove (24). The insert (22) passes upward from the first receiving groove (24) to the second receiving groove (25), so that part of the insert (22) is located in the first receiving groove (24) and the other part is located in the second receiving groove (25). The insert (22) passes through the first receiving groove (24) to facilitate the connection of the lead pin (12) of the micro switch (1) with the insert (22), and the insert (22) passes through the second receiving groove (25) to facilitate its connection with the wiring. Therefore, the first receiving slot (24) can be used to store the micro switch (1), the snap-fit ​​(23), the positioning post (21), and a part of the insert (22), and the second receiving slot (25) can be used to store another part of the insert (22) used for wiring connection.

[0033] See Figure 3 and Figure 4 In this embodiment, the arc shield (2) has also been optimized as follows: The arc shield (2) is also provided with bosses (26) and reinforcing ribs (27) to increase the strength of the arc shield (2) from different design angles. Specifically, the boss (26) is set on the bottom wall of the first receiving groove (24) in the Y-axis direction, so that the bottom wall of the first receiving groove (24) in the Y-axis direction forms an uneven shape. At this time, the two buckles (23) can be positioned opposite each other on both sides of the boss (26), and the positioning post (21) is set on the boss (26) to increase the load-bearing capacity of the arc shield (2) on the micro switch (1) and also increase the deformation resistance of the arc shield (2). There are two reinforcing ribs (27). The reinforcing ribs (27) are set on the inner side wall of the arc shield (2) and extend along the Z-axis direction. Each reinforcing rib (27) is set to a different buckle (23), specifically corresponding to the position of the rooting surface of the buckle (23). When the buckle (23) is engaged with the micro switch (1) and subjected to elastic deformation, the bottom wall of the first receiving groove (24) in the Y-axis direction is not easily deformed by the torque of the buckle (23).

[0034] See Figure 4 In this embodiment, the preferred solution of the buckle (23) is as follows: the buckle (23) is provided with a plate-shaped reinforcing part (232) and a tenon (231); the plate-shaped reinforcing part (232) is provided on the outer side of the fixed end of the buckle (23), and the plate-shaped reinforcing part (232) is used to improve the strength of the buckle (23). Specifically, the reinforcing part (232) is perpendicular to the rooting surface of the buckle (23), and in the Y-axis direction, the length of the reinforcing part (232) is less than the length of the buckle (23); the tenon (231) is provided on the inner side of the free end of the buckle (23), and the tenon (231) is used to engage the micro switch (1) and restrict the micro switch (1) from sliding along the Y-axis direction.

[0035] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A mounting and fixing structure for a contactor-assisted micro switch, characterized in that, include: A micro switch, wherein the micro switch is provided with a positioning hole extending along the Y-axis and a lead extending along the Z-axis; An arc-blocking cover is provided with a positioning post extending along the Y-axis, an insert, and two buckles arranged along the X-axis. The X-axis is perpendicular to both the Y-axis and Z-axis, the Y-axis is perpendicular to the Z-axis, the positioning post passes through the positioning hole, the insert and the lead-out foot are elastically press-fitted together, and the two buckles are engaged with the micro switch on opposite sides along the X-axis and restrict the movement of the micro switch in the Z-axis, so as to restrict the micro switch on the arc shield in the three-dimensional coordinate system.

2. The mounting and fixing structure of the contactor-assisted micro switch according to claim 1, characterized in that, The positioning post is located between the two buckles.

3. The mounting and fixing structure of the contactor-assisted micro switch according to claim 2, characterized in that, The number of positioning posts is not less than two, and at least two positioning posts are arranged at intervals. The number of positioning holes is the same as the number of positioning posts and their positions correspond one-to-one.

4. The mounting and fixing structure of the contactor-assisted micro switch according to claim 1, characterized in that, The outer side of the fixed end of the buckle is provided with a plate-shaped reinforcing part.

5. The mounting and fixing structure of the contactor-assisted micro switch according to claim 4, characterized in that, The reinforcing part is perpendicular to the rooting surface of the buckle, and in the Y-axis direction, the length of the reinforcing part is less than the length of the buckle.

6. The mounting and fixing structure of the contactor-assisted micro switch according to claim 4, characterized in that, The inner side of the free end of the buckle is provided with a tenon.

7. The mounting and fixing structure for the contactor-assisted micro switch according to any one of claims 1 to 6, characterized in that, The outer periphery of the arc shield is recessed inward to form a first receiving groove. The positioning post and the buckle are both disposed in the first receiving groove. The insert is inserted through the first receiving groove. The micro switch is installed in the first receiving groove.

8. The mounting and fixing structure of the contactor-assisted micro switch according to claim 7, characterized in that, One end of the arc shield in the Z-axis direction is recessed inward to form a second receiving groove. The second receiving groove is located on one side of the first receiving groove in the Z-axis direction. The insert passes through the isolation wall between the first receiving groove and the second receiving groove, so that a part of the insert is located in the first receiving groove and the other part is located in the second receiving groove.

9. The mounting and fixing structure of the contactor-assisted micro switch according to claim 7, characterized in that, The first receiving groove is open along the Y-axis direction, and a boss is provided on its bottom wall. The two buckles are located opposite each other on both sides of the boss, and the positioning post is provided on the boss.

10. The mounting and fixing structure of the contactor-assisted micro switch according to claim 9, characterized in that, The inner wall of the arc-blocking cover is provided with reinforcing ribs at the positions corresponding to the buckle rooting surfaces, and the reinforcing ribs extend along the Z-axis direction.

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