Auxiliary contact on alternating current contactor

Abstract

The utility model discloses an auxiliary contact on an AC contactor. The auxiliary contact comprises a contactor and an auxiliary contact assembly installed on the side surface of the contactor. The auxiliary contact assembly comprises a first shell and a second shell; the first shell is further provided with a first connecting piece, and the first connecting piece is connected with the first connecting groove in a matched mode. A second connecting piece is also arranged in the first shell and the second shell; the second connecting piece slides in the first shell and the second shell so that the second connecting piece can make contact with or be separated from a second connecting groove in the contactor, and when the auxiliary contact assembly is connected with the contactor, the second connecting piece is pushed to move towards the side away from the first connecting piece; therefore, the second connecting piece can be promoted to move through external force, the second connecting piece and the second connecting groove can be smoothly separated, and the problems that in the prior art, a lower buckle is prone to being clamped on the contactor, disassembly is not smooth, and the auxiliary contact is not prone to being separated from the contactor are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to an auxiliary contact on an AC contactor. Background Art

[0002] A search revealed that in the prior art, such as the prior art with patent number CN110047704A, the installation method of the auxiliary contact unit is: the operator first puts the lower buckle of the auxiliary contact unit into the two lower hanging holes of the AC contactor, and then applies a downward pressure to the auxiliary contact unit, the spring is compressed, and the lower buckle moves upward relative to each other, so that the position of the upper buckle is just relatively aligned with the position of the upper hanging hole of the AC contactor, and then applies a horizontal thrust to the auxiliary contact unit to insert the upper buckle into the upper hanging hole of the AC contactor. The operator lets go, the spring stretches, and pushes the lower buckle to move downward relative to each other, and the hook at the front end of the upper buckle and the hook at the front end of the lower buckle are tightly attached to the side wall of the AC contactor, and the auxiliary contact unit is firmly hung on the AC contactor.

[0003] However, it is inconvenient during the disassembly process, that is, it can only be achieved through steps completely opposite to the above method. However, since the lower clip relies on the elastic force of the spring, the spring will always urge the lower clip to be buckled on the contactor during the disassembly process, resulting in unsmooth disassembly of the auxiliary contact and affecting the disassembly efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary contact on an AC contactor to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary contact on an AC contactor, comprising a contactor and an auxiliary contact assembly installed on the side of the contactor; the auxiliary contact assembly comprises a first shell and a second shell; wherein a first connecting piece is also provided on the first shell, and the first connecting piece is adaptively connected to a first connecting groove provided on the side of the contactor; a second connecting piece is also provided inside the first shell and the second shell; the second connecting piece is slid inside the first shell and the second shell to make the second connecting piece contact or separate from the second connecting groove provided on the contactor; one end of the second connecting piece slides inside the first shell and the second shell, and the other end of the second connecting piece is exposed on the side of the auxiliary contact assembly away from the terminal.

[0006] As a preferred technical solution of the present utility model: the second connecting member is connected to the second connecting groove by a spring.

[0007] As a preferred technical solution of the present utility model: an installation cavity for installing the spring is also provided on the second connecting member, and a support seat is also provided on the first shell; wherein one end of the spring abuts against the upper wall surface of the installation cavity, and the other end of the spring abuts against the support seat.

[0008] As a preferred technical solution of the present utility model: the second connecting member is connected to the second connecting groove after passing through the second shell through a provided hook.

[0009] As a preferred technical solution of the utility model: a positioning pin is further provided on a side of the auxiliary contact assembly facing the contactor, and the positioning pin is adaptively connected to a positioning groove provided on the contactor.

[0010] As a preferred technical solution of the utility model: a third connecting groove and a fourth connecting groove are further provided on a side of the auxiliary contact assembly away from the contactor; wherein the third connecting groove is connected to the first connecting piece, and the fourth connecting groove is connected to the second connecting piece.

[0011] By adopting the above technical solution, the beneficial effect of the utility model is that when the auxiliary contact assembly is connected to the contactor, pressing the second connecting member causes the second connecting member to move to the side away from the first connecting member, so that the second connecting member can be caused to move by external force, thereby facilitating the smooth separation of the second connecting member and the second connecting groove, so as to solve the problem in the prior art that the lower buckle is easily stuck on the contactor, resulting in unsmooth disassembly and difficulty in separating the auxiliary contact from the contactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is an exploded schematic diagram of the main structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the main structure of the auxiliary contact assembly of the utility model;

[0014] Figure 3 It is a schematic diagram of the exploded structure of the auxiliary contact assembly of the utility model;

[0015] Figure 4 is a schematic diagram of the exploded structure of the second connecting member and the first shell;

[0016] Figure 5 It is a schematic diagram of the main structure of the second connecting member of the utility model.

[0017] In the figure: 1, contactor; 2, second connecting groove; 3, auxiliary contact assembly; 30, first housing; 31, second connecting member; 32, first connecting member; 33, second housing; 34, positioning pin; 35, hook; 36, spring; 37, support seat; 38, mounting cavity; 39, third connecting groove; 310, fourth connecting groove; 4, first connecting groove; 5, positioning groove. DETAILED DESCRIPTION

[0018] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present utility model, and should not be construed as limitations on the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "upper surface", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0019] See also Figure 1-5 The utility model provides an embodiment: an auxiliary contact on an AC contactor, comprising a contactor 1, an auxiliary contact assembly 3 installed on the side of the contactor 1; the auxiliary contact assembly 3 comprises a first shell 30 and a second shell 33; wherein the first shell 30 is further provided with a first connecting member 32, and the first connecting member 32 is adaptively connected to a first connecting groove 4 provided on the side of the contactor 1; the first shell 30 and the second shell 33 are further provided with a second connecting member 31; the second connecting member 31 slides inside the first shell 30 and the second shell 33, So that the second connecting member 31 is in contact with or separated from the second connecting groove 2 provided on the contactor 1; through the above method, the second connecting member 31 is first pressed, and the second connecting member 31 slides inside the first shell 30 and the second shell 33, so that the second connecting member 31 is separated from the second connecting groove 2. At this time, the contact between the second connecting member 31 and the second connecting groove 2 can be cut off by external force, so that the user can smoothly remove the auxiliary contact assembly 3 from the contactor 1, and the second connecting member 31 can be separated from the second connecting groove 2 more thoroughly by using external force, thereby ensuring that the separation process is smooth and smooth.

[0020] In particular, one end of the second connector 31 slides inside the first housing 30 and the second housing 33, and the other end of the second connector 31 is exposed on the side of the auxiliary contact assembly 3 away from the terminal. Therefore, the auxiliary contact assembly 3 can be separated from the contactor 1 by pressing the second connector 31 from the side of the contactor 1. In addition, after pressing the second connector 31, the auxiliary contact assembly 3 is then attached to the side of the contactor 1, and the second connector 31 is released, so that the auxiliary contact assembly 3 and the contactor 1 can be smoothly assembled. Therefore, compared with the installation method in the prior art, this method is simple and convenient to disassemble and install. In particular, the auxiliary contact assembly 3 can be directly attached to the side of the contactor 1 during installation to solve the problem that the auxiliary contact and the contactor need to adjust the angle when installing in the prior art, so as to achieve the smooth assembly of the two.

[0021] Furthermore, since the second connecting member 31 is connected to the second connecting groove 2 by the spring 36, the spring 36 can be used to reset the second connecting member 31.

[0022] Furthermore, since the second connecting member 31 is also provided with an installation cavity 38 for installing the spring 36, and the first housing 30 is also provided with a support seat 37, one end of the spring 36 abuts against the upper wall surface of the installation cavity 38, and the other end of the spring 36 abuts against the support seat 37. Therefore, under the action of the support seat 37 and the installation cavity 38, the spring 36 is stable and reliable during operation and will not fall off easily. In specific applications, a protrusion inserted into the spring 36 can be provided on the facing surfaces of the support seat 37 and the installation cavity 38, so that the stability of the spring 36 during operation can be further improved.

[0023] In addition, due to the provision of the support seat 37 and the insertion of the support seat 37 into the installation cavity 38, the second connecting member 31 can slide stably and directionally. At the same time, the support seat 37 can also be used to limit the sliding distance of the second connecting member 31 to ensure that the second connecting member 31 will not squeeze other equipment when sliding.

[0024] Specifically, the second connecting member 31 passes through the second shell 33 through the provided hook 35 and is connected to the second connecting groove 2. Therefore, the hook 35 can be hooked in the second connecting groove 2 to improve the stability of the auxiliary contact assembly 3 after being connected to the contactor 1.

[0025] On the basis of the above scheme, since a positioning pin 34 is further provided on the side of the auxiliary contact assembly 3 facing the contactor 1, and the positioning pin 34 is adaptively connected to the positioning groove 5 provided on the contactor 1, when the auxiliary contact assembly 3 is fitted with the contactor 1, the positioning pin 34 is connected to the positioning groove 5, so that the contact points between the auxiliary contact assembly 3 and the contactor 1 can be further increased to enhance the stability of the connection between the two, especially, the shaking phenomenon of the auxiliary contact assembly 3 on the contactor 1 can be avoided.

[0026] In order to facilitate connecting multiple auxiliary contact assemblies 3 together to expand the position of the auxiliary contact points; the auxiliary contact assembly 3 is also provided with a third connecting groove 39 and a fourth connecting groove 310 on the side away from the contactor 1; wherein the third connecting groove 39 is connected to the first connecting member 32, and the fourth connecting groove 310 is connected to the second connecting member 31.

[0027] To summarize, when one of the auxiliary contact assemblies 3 is connected to the contactor 1, another auxiliary contact assembly 3 is attached to the auxiliary contact assembly 3 connected to the contactor 1 to achieve the superposition of multiple auxiliary contact assemblies 3; based on this, the number of auxiliary contact assemblies 3 can be freely increased or decreased according to the number of auxiliary contact points in actual use to increase the number of auxiliary contacts.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations of these embodiments are made without departing from the principles and spirit of the present invention, and still fall within the scope of protection of the present invention.

Claims

1. An auxiliary contact on an AC contactor, characterized in that: It comprises a contactor (1) and an auxiliary contact assembly (3) mounted on a side of the contactor (1); The auxiliary contact assembly (3) comprises a first housing (30) and a second housing (33); wherein the first housing (30) is further provided with a first connecting member (32), and the first connecting member (32) is adaptively connected to a first connecting groove (4) provided on a side surface of the contactor (1); A second connecting member (31) is further provided inside the first shell (30) and the second shell (33); the second connecting member (31) slides inside the first shell (30) and the second shell (33) so as to make the second connecting member (31) contact or separate from a second connecting groove (2) provided on the contactor (1); One end of the second connecting member (31) slides inside the first housing (30) and the second housing (33), and the other end of the second connecting member (31) is exposed on a side of the auxiliary contact assembly (3) away from the wiring terminal.

2. The auxiliary contact on an AC contactor according to claim 1, characterized in that: The second connecting member (31) is urged to connect to the second connecting groove (2) by means of a spring (36).

3. The auxiliary contact on the AC contactor according to claim 2, characterized in that: The second connecting member (31) is also provided with a mounting cavity (38) for mounting the spring (36), and the first housing (30) is also provided with a support seat (37); wherein one end of the spring (36) abuts against an upper wall surface of the mounting cavity (38), and the other end of the spring (36) abuts against the support seat (37).

4. The auxiliary contact on the AC contactor according to claim 3, characterized in that: The second connecting member (31) passes through the second shell (33) via a hook (35) and is connected to the second connecting groove (2).

5. An auxiliary contact on an AC contactor according to any one of claims 1 to 4, characterized in that: A positioning pin (34) is also provided on a side of the auxiliary contact assembly (3) facing the contactor (1), and the positioning pin (34) is adaptively connected to a positioning groove (5) provided on the contactor (1).

6. The auxiliary contact on the AC contactor according to claim 5, characterized in that: A third connecting groove (39) and a fourth connecting groove (310) are also provided on a side of the auxiliary contact assembly (3) away from the contactor (1); wherein the third connecting groove (39) is connected to the first connecting member (32), and the fourth connecting groove (310) is connected to the second connecting member (31).

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