A contactor with auxiliary contacts

Abstract

The application provides a contactor with an auxiliary contact, comprising: a main contact module; an auxiliary contact module, which is slidably mounted on the main contact module and has an assembly position and a disassembly position respectively fixed and separated from the main contact module; when the auxiliary contact module is in the assembly position, first limiting structure and second limiting structure are arranged between the auxiliary contact module and the main contact module, the first limiting structure is suitable for limiting the front and back movement of the auxiliary contact module relative to the main contact module, and the second limiting structure is suitable for limiting the up and down and left and right movement of the auxiliary contact module relative to the main contact module. Thus, when the auxiliary contact module is faulty, it can be disassembled and repaired alone, which is more convenient and faster compared with the prior art which needs to disassemble the whole contactor shell; in addition, the first limiting structure and the second limiting structure are arranged to limit the up and down, front and back and left and right movement of the auxiliary contact module relative to the main contact module, so that the assembly of the two is more firm.

Description

Technical Field

[0001] The present invention relates to the technical field of contactors, and in particular to a contactor with auxiliary contacts. Background Art

[0002] A contactor is an electrical device used to frequently connect and disconnect AC and DC main circuits and large-capacity control circuits over long distances.

[0003] Existing contactors generally include an auxiliary circuit and a main circuit arranged above and below. The moving contacts of the main circuit and the auxiliary circuit share a contact support. Therefore, when only the auxiliary circuit fails, the entire contactor housing must be removed before repair or replacement, which brings great inconvenience to maintenance. In addition, for users, only the contactor with a fault in the auxiliary circuit can be replaced as a whole, which increases replacement costs. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of inconvenient maintenance and replacement of contactors in the prior art, thereby providing a contactor with auxiliary contacts that is easy to maintain and replace.

[0005] To this end, the present invention provides a contactor with auxiliary contacts, including a main contact module and an auxiliary contact module. The auxiliary contact module can be slidably installed on the main contact module, and has an assembly position and a disassembly position that are fixed and separated from the main contact module respectively. In the assembly position, a first limiting structure and a second limiting structure are provided between the auxiliary contact module and the main contact module. The first limiting structure is suitable for limiting the forward and backward movement of the auxiliary contact module relative to the main contact module, and the second limiting structure is suitable for limiting the upward, downward and leftward and rightward movement of the auxiliary contact module relative to the main contact module.

[0006] The first limiting structure includes a first elastic baffle, a second baffle, a first boss and a second boss, the first elastic baffle and the second baffle are arranged on the auxiliary contact module; the first boss and the second boss are arranged on the main contact module, wherein, in the disassembly position, the first boss, the first elastic baffle, the second boss and the second baffle are arranged in sequence along the sliding direction; in the process of switching from the disassembly position to the assembly position, the first elastic baffle can be elastically deformed and slide from one side of the first boss to the other side; in the assembly position, the first boss and the second boss are both located between the first elastic baffle and the second baffle, and the first elastic baffle is against the first boss, and the second baffle is against the second boss.

[0007] The first boss is a trapezoidal boss having a first inclined surface that abuts against the first elastic baffle to cause elastic deformation thereof.

[0008] The second limiting structure includes: at least one inverted L-shaped first buckle platform, which is arranged at the top of the main contact module, and the inverted L-shaped first buckle platform and the main contact module form a slot; at least one second buckle platform, which is arranged at the bottom of the auxiliary contact module, suitable for being inserted into the slot and buckled with the inverted L-shaped first buckle platform.

[0009] There are at least two first buckling platforms and at least two second buckling platforms, and the two slots of the two first buckling platforms are respectively arranged toward the left and right sides of the main contact module.

[0010] The auxiliary contact module is slidably mounted on the main contact module through a guide structure. The guide structure includes two guide blocks provided on the main contact module and arranged in parallel. The extension direction of the guide blocks is parallel to the sliding direction of the auxiliary contact module. The two guide blocks are respectively arranged to fit the inner walls or outer walls on the left and right sides of the auxiliary contact module.

[0011] An auxiliary contact support is provided in the auxiliary contact module, and a main contact support is provided in the main contact module. The auxiliary contact support is assembled with the main contact support through a hook structure. The hook structure includes a hook groove provided on the main contact support, and a hook provided on the auxiliary contact support and hooked with the hook groove.

[0012] An elastic structure suitable for making the hook and the hook groove fit together up and down is provided between the auxiliary contact support and the main contact support, and the elastic structure includes: a third boss provided at the top of the main contact support; an elastic connecting piece integrally formed at the bottom of the auxiliary contact support, suitable for interference fit with the third boss.

[0013] The auxiliary contact module includes an auxiliary cover and an auxiliary base that are buckled together. The auxiliary base is provided with a plurality of wiring terminals and a partition provided between two adjacent wiring terminals. The partition has a partition extending outward from the auxiliary base.

[0014] The side plate of the auxiliary cover is provided with an elongated hole for inserting the spacer, and the spacer has a second inclined surface provided on the top thereof for guiding the insertion of the side plate. After the auxiliary cover is assembled with the auxiliary base, the bottom of the spacer is against the bottom surface of the elongated hole.

[0015] The technical solution of the present invention has the following advantages:

[0016] 1. The contactor with auxiliary contacts provided by the present invention has an auxiliary contact module that is slidably mounted on the main contact module and has an assembly position and a disassembly position that are fixed and separated from the main contact module, respectively. That is, the auxiliary contact module and the main contact module can be arranged separately. In this way, when the auxiliary contact module fails, it can be disassembled separately for maintenance. Compared with the prior art method that requires disassembly of the entire contactor housing, maintenance is faster and more convenient. For users, only the auxiliary contact module needs to be replaced, which reduces maintenance costs. In addition, by providing a first limiting structure and a second limiting structure, the auxiliary contact module is restricted from moving up, down, forward, backward, left, and right relative to the main contact module, making the assembly of the two more secure.

[0017] 2. The contactor with auxiliary contacts provided by the present invention comprises a first limiting structure including a first elastic baffle, a second baffle, a first boss and a second boss. During the process of switching from the disassembly position to the assembly position, the first elastic baffle can elastically deform and slide from one side of the first boss to the other side; in the assembly position, the first boss and the second boss are both located between the first elastic baffle and the second baffle, and the first elastic baffle is abutted against the first boss, and the second baffle is abutted against the second boss, thereby limiting the forward and backward movement of the auxiliary contact module relative to the main contact module. The above-mentioned first limiting structure has the advantage of simple structure; further, the first boss is a trapezoidal boss, and the trapezoidal boss has a first inclined surface that abuts against the first elastic baffle to elastically deform it, so that when the auxiliary contact module slides to the assembly position, the first baffle can automatically elastically deform the first inclined surface of the trapezoidal boss, so that assembly is faster and more convenient.

[0018] 3. The contactor with auxiliary contacts provided by the present invention has a second limiting structure including an inverted L-shaped first buckle platform provided on the top of the main contact module, and a second buckle platform provided on the bottom of the auxiliary contact module. During assembly, the second buckle platform is inserted into the slot of the inverted L-shaped first buckle platform, thereby limiting the up and down movement of the auxiliary contact module relative to the main contact module; further, the two slots of the two first buckle platforms are respectively arranged towards the left and right sides of the main contact module, thereby limiting the left and right movement of the auxiliary contact module relative to the main contact module.

[0019] 4. The contactor with auxiliary contacts provided by the present invention has an elastic structure between the auxiliary contact support and the main contact support, which is suitable for making the hook and the hook groove fit together in the upper and lower directions. The elastic structure can make the hook and the hook groove always fit together, reduce friction at the hook, and improve connection reliability. In addition, since the elastic connecting piece is integrally formed at the bottom of the auxiliary contact support, the structure is simpler and the assembly is faster and more convenient.

[0020] 5. In the contactor with auxiliary contacts provided by the present invention, the spacer increases the creepage distance between two adjacent terminals. At the same time, after the auxiliary cover and the auxiliary base are assembled, the bottom of the spacer abuts against the bottom surface of the elongated hole, thereby fixing the auxiliary cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 is a perspective view of a contactor of the present invention;

[0023] Figure 2 Schematic diagram of the separation of the main contact module and the auxiliary contact module;

[0024] Figure 3 is a three-dimensional diagram of the auxiliary contact module;

[0025] Figure 4 It is an exploded schematic diagram of the auxiliary cover and the auxiliary base;

[0026] Figure 5 A perspective view of the auxiliary base;

[0027] Figure 6 It is a structural schematic diagram of the auxiliary contact module in the disassembly position and the assembly position;

[0028] Figure 7 This is the assembly diagram of the auxiliary contact support and the main contact support;

[0029] Figure 8 This is a schematic diagram of the decomposition of the auxiliary contact support and the main contact support.

[0030] Explanation of the accompanying drawings: 1. Main contact module; 2. Auxiliary contact module; 3. First elastic baffle; 4. Second baffle; 5. First boss; 6. Second boss; 7. First inclined surface; 8. First buckle platform; 9. Slot; 10. Second buckle platform; 12. Guide block; 13. Auxiliary contact support; 14. Main contact support; 15. Hook groove; 16. Hook; 17. Third boss; 18. Elastic connecting piece; 19. Auxiliary cover; 20. Auxiliary base; 21. Terminal block; 22. Partition; 23. Partition; 24. Side panel; 25. Long hole; 26. Second inclined surface; 27. Main cover; 28. Main base. DETAILED DESCRIPTION

[0031] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0034] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] Example

[0036] This embodiment provides a contactor with auxiliary contacts, such as Figure 1 and 2 As shown, it includes a main contact module 1 and an auxiliary contact module 2.

[0037] The main contact module 1 includes a main cover 27 and a main base 28 that are buckled together. The main cover 27 and the main base 28 together form a mounting cavity suitable for mounting the main contact support 14 .

[0038] The auxiliary contact module 2 is slidably mounted on the main contact module 1 through a guide structure, and has an assembly position and a disassembly position respectively fixed to and separated from the main contact module 1. In the assembly position, a first limiting structure and a second limiting structure are provided between the auxiliary contact module 2 and the main contact module 1. The first limiting structure is suitable for limiting the front and rear movement of the auxiliary contact module 2 relative to the main contact module 1, and the second limiting structure is suitable for limiting the up and down and left and right movement of the auxiliary contact module 2 relative to the main contact module 1. Figure 3-5 As shown, the auxiliary contact module 2 includes an auxiliary cover 19 and an auxiliary base 20 that are fastened together. The auxiliary base 20 is provided with a plurality of wiring terminals 21 and a partition 22 disposed between two adjacent wiring terminals 21. The partition 22 has a spacer 23 extending outward from the auxiliary base 20. The side panels 24 of the auxiliary cover 19 have elongated holes 25 for inserting the spacer 23. The spacer 23 has a second inclined surface 26 disposed at its top to guide the insertion of the side panel 24. After the auxiliary cover 19 and the auxiliary base 20 are assembled, the bottom of the spacer 23 abuts against the bottom surface of the elongated hole 25.

[0039] The first limiting structure, such as Figure 2 and 5 As shown, it includes: a first elastic baffle 3 and a second baffle 4, which are arranged on the front and rear sides of the auxiliary base 20 of the auxiliary contact module 2; a first boss 5 and a second boss 6, which are arranged on the auxiliary base 20 of the main contact module 1, wherein, in the disassembly position, the first boss 5, the first elastic baffle 3, the second boss 6 and the second baffle 4 are arranged in sequence along the sliding direction; in the process of switching from the disassembly position to the assembly position, the first elastic baffle 3 can elastically deform and slide from one side of the first boss 5 to the other side; in the assembly position, the first boss 5 and the second boss 6 are both located between the first elastic baffle 3 and the second baffle 4, and the first elastic baffle 3 is against the first boss 5, and the second baffle 4 is against the second boss 6. In this embodiment, the first boss 5 is a trapezoidal boss, and the trapezoidal boss has a first inclined surface 7 that is against the first elastic baffle 3 to make it elastically deformed. As shown Figure 6 As shown, Figure 6 The right part is the disassembly position, and the left part is the assembly position.

[0040] like Figure 2 and 5As shown, the second limiting structure includes: four inverted L-shaped first latching platforms 8, which are arranged on the top of the main cover 27 of the main contact module 1, and a slot 9 is formed between the inverted L-shaped first latching platforms 8 and the main cover 27; four second latching platforms 10, which are arranged on the bottom of the auxiliary base 20 of the auxiliary contact module 2, are suitable for being inserted into the slot 9 and fastened to the inverted L-shaped first latching platforms 8. In this embodiment, the two slots 9 of the two first latching platforms 8 are respectively arranged towards the left and right sides of the main contact module 1. The second latching platforms 10 are oblique latching platforms, and the slots 9 are oblique latching grooves adapted to the oblique latching platforms.

[0041] The guide structure includes two guide blocks 12 provided on the main contact module 1 and arranged in parallel. The extension direction of the guide blocks 12 is parallel to the sliding direction of the auxiliary contact module 2. The two guide blocks 12 are respectively arranged to fit the inner walls or outer walls on the left and right sides of the auxiliary contact module 2.

[0042] The auxiliary contact support 13 is assembled with the main contact support 14 through a hook structure, as shown in FIG. Figure 7 and 8 As shown, the hook structure includes a hook groove 15 provided on the main contact support 14, and a hook 16 provided on the auxiliary contact support 13 and hooked and connected to the hook groove 15. An elastic structure is provided between the auxiliary contact support 13 and the main contact support 14, suitable for vertically fitting the hook 16 and the hook groove 15. The elastic structure includes: a third boss 17 provided on the top of the main contact support 14; and an elastic connecting piece 18 integrally formed at the bottom of the auxiliary contact support 13, suitable for interference fit with the third boss 17.

[0043] The contactor with auxiliary contacts provided by the present invention has an auxiliary contact module 2 that is slidably installed on the main contact module 1 and has an assembly position and a disassembly position that are respectively fixed to and separated from the main contact module 1. That is, the auxiliary contact module 2 and the main contact module 1 can be set separately. In this way, when the auxiliary contact module 2 fails, it can be disassembled separately for repair. Compared with the prior art method that requires disassembly of the entire contactor housing, maintenance is faster and more convenient, and for users, only the auxiliary contact module needs to be replaced, which reduces maintenance costs. In addition, by setting a first limiting structure and a second limiting structure, the auxiliary contact module is limited from moving up and down, forward and backward, left and right relative to the main contact module, making the assembly of the two more secure.

[0044] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A contactor with auxiliary contacts, characterized in that: include: Main contact module (1); An auxiliary contact module (2) is slidably mounted on the main contact module (1) and has an assembly position and a disassembly position respectively fixed to and separated from the main contact module (1); in the assembly position, a first limiting structure and a second limiting structure are provided between the auxiliary contact module (2) and the main contact module (1); the first limiting structure is suitable for limiting the front-rear movement of the auxiliary contact module (2) relative to the main contact module (1); and the second limiting structure is suitable for limiting the up-down and left-right movement of the auxiliary contact module (2) relative to the main contact module (1); The first limiting structure includes: A first elastic baffle (3) and a second baffle (4) are provided on the auxiliary contact module (2); A first boss (5) and a second boss (6) are provided on the main contact module (1), wherein, in the disassembly position, the first boss (5), the first elastic baffle (3), the second boss (6) and the second baffle (4) are sequentially spaced along the sliding direction; in the process of switching from the disassembly position to the assembly position, the first elastic baffle (3) can elastically deform and slide from one side of the first boss (5) to the other side; in the assembly position, the first boss (5) and the second boss (6) are both located between the first elastic baffle (3) and the second baffle (4), and the first elastic baffle (3) abuts against the first boss (5), and the second baffle (4) abuts against the second boss (6); The second limiting structure includes: At least one inverted L-shaped first buckle platform (8) is provided on the top of the main contact module (1), and the inverted L-shaped first buckle platform (8) and the main contact module (1) form a slot (9); At least one second buckle platform (10) is provided at the bottom of the auxiliary contact module (2), is suitable for being inserted into the slot (9), and is buckled and connected with the inverted L-shaped first buckle platform (8).

2. The contactor with auxiliary contacts according to claim 1, characterized in that: The first boss (5) is a trapezoidal boss having a first inclined surface (7) that abuts against the first elastic baffle (3) to cause elastic deformation thereof.

3. The contactor with auxiliary contacts according to claim 1, characterized in that: There are at least two of the first buckling platforms (8) and the second buckling platforms (10), and the two slots (9) of the two first buckling platforms (8) are respectively arranged toward the left and right sides of the main contact module (1).

4. The contactor with auxiliary contacts according to claim 1, characterized in that: The auxiliary contact module (2) is slidably mounted on the main contact module (1) via a guide structure, wherein the guide structure comprises two guide blocks (12) provided on the main contact module (1) and arranged in parallel, wherein the extension direction of the guide blocks (12) is parallel to the sliding direction of the auxiliary contact module (2), and the two guide blocks (12) are respectively arranged to fit the inner wall or outer wall on the left and right sides of the auxiliary contact module (2).

5. The contactor with auxiliary contacts according to claim 1, characterized in that: The auxiliary contact module (2) is provided with an auxiliary contact support (13), and the main contact module (1) is provided with a main contact support (14). The auxiliary contact support (13) is assembled with the main contact support (14) through a hook structure, and the hook structure includes a hook groove (15) provided on the main contact support (14), and a hook (16) provided on the auxiliary contact support (13) and hooked with the hook groove (15).

6. The contactor with auxiliary contacts according to claim 5, characterized in that: An elastic structure is provided between the auxiliary contact support (13) and the main contact support (14), which is suitable for making the hook (16) and the hook groove (15) fit together in an upper and lower manner. The elastic structure includes: A third boss (17) is provided on the top of the main contact support (14); An elastic connecting piece (18) is integrally formed at the bottom of the auxiliary contact support (13) and is suitable for interference fit with the third boss (17).

7. The contactor with auxiliary contacts according to claim 1, characterized in that: The auxiliary contact module (2) comprises an auxiliary cover (19) and an auxiliary base (20) which are fastened together in an upper and lower manner, wherein the auxiliary base (20) is provided with a plurality of wiring terminals (21), and a partition (22) provided between two adjacent wiring terminals (21), wherein the partition (22) has a partition (23) extending outward from the auxiliary base (20).

8. The contactor with auxiliary contacts according to claim 7, characterized in that: The side plate (24) of the auxiliary cover (19) has an elongated hole (25) for inserting the spacer (23), and the spacer (23) has a second inclined surface (26) provided on the top thereof for guiding the insertion of the side plate (24). After the auxiliary cover (19) and the auxiliary base (20) are assembled, the bottom of the spacer (23) abuts against the bottom surface of the elongated hole (25).

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