Top interlocking device of contactor

Abstract

The utility model relates to a top interlocking device of a contactor, which comprises a shell, the shell is internally provided with an interlocking device, the interlocking device comprises a supporting piece, a baffle plate and a spring, the supporting piece is provided with a hollow cavity, the bottom of the cavity is provided with a sunken concave platform, the baffle plate is arranged in the hollow cavity of the supporting piece, one end of the baffle plate extends downwards to form a bending part, and the spring is arranged on the baffle plate. The spring is arranged between the concave platform of the supporting piece and the bending part of the baffle, one end of the spring abuts against the concave platform, and the other end of the spring abuts against the bending part of the baffle. According to the utility model, the supporting member is provided with the hollow cavity, and the baffle plate and the spring are arranged in the supporting member, so that the whole interlocking device is compact in structure and small in occupied space, and is beneficial to the miniaturization design of the whole contactor; the baffle can automatically reset after being subjected to external force, the response speed and safety of equipment are improved, and equipment faults caused by human negligence or misoperation are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, in particular to a top interlocking device of a contactor. Background Art

[0002] As a key component in the electrical control system, contactors are widely used in various power equipment and circuits to achieve the connection, disconnection of circuits, as well as the conversion and control of loads. During the operation of the contactor, the top interlocking device plays a crucial role. It can provide necessary mechanical interlocking when the contactor closes and opens, ensuring the safety and reliability of operations. However, the existing top interlocking device of the contactor has a relatively complex structure, including multiple components, and the installation method of the spring is often not reliable, causing the outer shell to directly act on the spring, resulting in a large dispersion of the spring force, which in turn affects the reliability and stability of the operation of the top interlocking device. In the working environment where the contactor operates frequently, this defect is particularly obvious, which may lead to the failure or malfunction of the interlocking device, thus triggering safety accidents. Content of the Utility Model

[0003] In view of this, the purpose of the utility model is to provide a top interlocking device of a contactor with a compact structure, fast response speed and high safety.

[0004] To achieve the above purpose, the utility model adopts such a top interlocking device of a contactor, including a housing. A interlocking device is arranged inside the housing. The interlocking device includes a support member, a baffle and a spring. The support member has a hollow cavity, and a sunken concave platform is provided at the bottom of the cavity. The baffle is installed in the hollow cavity of the support member, and one end extends downward to form a bent portion. The spring is placed between the concave platform of the support member and the bent portion of the baffle, and one end abuts against the concave platform, and the other end abuts against the bent portion of the baffle.

[0005] Compared with the prior art, the beneficial effect of the above structure lies in that by setting the support member in the form of a hollow cavity and installing the baffle and the spring inside it, the structure of the whole interlocking device is compact and occupies less space, which is conducive to the miniaturization design of the whole contactor. Moreover, the spring is placed between the concave platform of the support member and the bent portion of the baffle, enabling the baffle to automatically reset after being acted by an external force, improving the response speed and safety of the device, and avoiding equipment failures caused by human negligence or misoperation.

[0006] The utility model is further set such that a positioning post is also provided on the concave platform. One end of the spring abuts against the positioning post on the concave platform and is used to cooperate with the bent portion of the baffle. The positioning post provides a support point for the spring, enabling the spring to maintain a stable position and direction during installation and operation, helping to reduce the risk of the interlocking device failing or malfunctioning due to the offset of the spring position, and improving the reliability and stability of the device.

[0007] The utility model is further configured such that the housing includes a lower base and an upper cover covering the lower base. A clamping groove for fixing is provided on one side of the support member. A clamping block matching the clamping groove of the support member is provided at a position corresponding to the inner side wall of the lower base. A notch corresponding to the position of the support member is provided on the upper cover, and one end of the support member extends out of the upper cover through the notch. The support member is fixed to the lower base through the cooperation of the clamping groove and the clamping block, ensuring the stable installation of the interlocking device inside the contactor, not only improving the stability of the interlocking device itself, but also helping to reduce loosening or falling off caused by vibration or external force.

[0008] The utility model is further configured such that the baffle is made of iron material. The iron material has high hardness and wear resistance, and can effectively resist wear and deformation caused by factors such as friction and collision during long-term use. Description of the Drawings

[0009] Figure 1 is a schematic diagram of the housing structure of an embodiment of the utility model.

[0010] Figure 2 is an exploded view of the housing structure of an embodiment of the utility model.

[0011] Figure 3 is a schematic diagram of the support member structure of an embodiment of the utility model.

[0012] Figure 4 is a schematic diagram of the interlocking device structure of an embodiment of the utility model.

[0013] Figure 5 is a cross-sectional view of the interlocking device structure of an embodiment of the utility model.

[0014] Figure 6 is a schematic diagram of the cooperation between the lower base and the support member of an embodiment of the utility model.

[0015] Figure 7 is a schematic diagram of the upper cover structure of an embodiment of the utility model.

[0016] Figure 8 is a side view of the upper cover and the support member of an embodiment of the utility model. Detailed Embodiments

[0017] As Figures 1-8 shown, an embodiment of the utility model provides a top interlocking device for a contactor, including a housing 1 and an interlocking device 2 disposed inside the housing 1. The interlocking device 2 includes a support member 21, a baffle 22, and a spring 23.

[0018] The core of the interlocking device 2 lies in the support member 21. The support member 21 has a hollow cavity 211. At the bottom of the cavity 211, there is a sunken concave platform 212. On the concave platform 212, there is a positioning post 213. The baffle 22 is installed in the hollow cavity 211 of the support member 21, and one end extends downward to form a bent portion 221. The spring 23 is placed between the concave platform 212 of the support member 21 and the bent portion 221 of the baffle 22, and one end abuts against the positioning post 213 on the concave platform 212, and the other end abuts against the bent portion 221 of the baffle 22.

[0019] The housing 1 is composed of a lower seat 11 and an upper cover 12 covering the lower seat 11. On one side of the support member 21, there is a clamping groove 214 for fixation. At a position corresponding to the clamping groove 214 of the support member 21 on the inner side wall of the lower seat 11, there is a mating clamping block 111. On the upper cover 12, there is a notch 121 corresponding to the position of the support member 21. The upper end of the support member 21 extends out of the upper cover 12 through the notch 121.

[0020] It should be noted that the baffle 2 is made of iron material to ensure the stability and reliability of long-term use with its high hardness and wear resistance.

[0021] Of course, in addition to the above embodiments, the present utility model can also have many other embodiments. Without departing from the substantial technical solution content of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model. And if these changes or deformations are equivalent to the technical solutions in this patent, then these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A top interlocking device for a contactor, comprising a housing, characterized in that: A linkage device is provided inside the housing. The linkage device includes a support member, a baffle, and a spring. The support member has a hollow cavity, and a sunken concave platform is provided at the bottom of the cavity. The baffle is installed inside the hollow cavity of the support member, and one end extends downward to form a bent portion. The spring is placed between the concave platform of the support member and the bent portion of the baffle, and one end abuts against the concave platform and the other end abuts against the bent portion of the baffle.

2. The top interlocking device of the contactor according to claim 1, characterized in that: A positioning post is further provided on the concave platform. One end of the spring abuts against the positioning post of the concave platform and is used to cooperate with the bent portion of the baffle.

3. The top interlocking device of the contactor according to claim 1 or 2, characterized in that: The housing includes a lower seat and an upper cover covering the lower seat. A clamping groove for fixing is provided on one side of the support member. A matching clamping block is provided on the inner side wall of the lower seat at the position corresponding to the clamping groove of the support member. A notch corresponding to the position of the support member is provided on the upper cover, and one end of the support member extends out of the upper cover through the notch.

4. The top interlocking device of the contactor according to claim 3, characterized in that: The baffle is made of iron material.

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