CN217544457U

CN217544457U - Moving contact component for air switch

Info

Publication number: CN217544457U
Application number: CN202221532136.3U
Authority: CN
Inventors: 刘云晖
Original assignee: Tianjin Jinlefeng Hardware Accessories Co ltd
Current assignee: Tianjin Jinlefeng Hardware Accessories Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-10-04
Anticipated expiration: 2032-06-20

Abstract

The application discloses a moving contact component for an air switch, which comprises a moving contact support, a moving contact connecting plate, a moving contact and a spring; the moving contact support is arranged in a hippocampus shape; one end of the moving contact support penetrates through a shaft hole along the thickness direction and is used for rotating the moving contact support; one side of one end of the moving contact support, which is far away from the shaft hole, is provided with a moving contact connecting plate, and the other side of the moving contact support is fixedly provided with a trapezoidal groove; a moving contact is arranged at one end of the moving contact connecting plate, which is far away from the moving contact support along the length direction; the inside installation in dovetail groove is provided with the spring. The movable contact assembly for the air switch is simple, convenient, stable, safe and low in production cost.

Description

Moving contact component for air switch

Technical Field

The application relates to the technical field of air switches, in particular to a moving contact component for an air switch.

Background

The contact system of the air switch in the current market is generally divided into two parts, namely a moving contact and a static contact, wherein the static contact is fixed on a base of the air switch, the moving contact is fixed on a moving contact support, the moving contact is driven to move within a certain range through the movement of the moving contact support, and the purpose of switching on or switching off the air switch is achieved through the contact or separation of the moving contact and the static contact.

The existing moving contact support is small in area for welding the moving contact, difficult in welding work and low in working quality, the service life of the moving contact is influenced, the production process of the moving contact assembly is complex, the production cost is high, and the maintenance and replacement cost is high.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a movable contact assembly for an air switch, which is simple, convenient, stable, safe and low in production cost.

The application provides a moving contact component for an air switch, which comprises a moving contact support, a moving contact connecting plate, a moving contact and a spring;

the moving contact support is arranged in a hippocampus shape; one end of the moving contact support penetrates through a shaft hole along the thickness direction and is used for rotating the moving contact support; one side of one end of the moving contact support far away from the shaft hole is provided with a moving contact connecting plate, and the other side is fixedly provided with a trapezoidal groove;

a moving contact is arranged at one end of the moving contact connecting plate, which is far away from the moving contact support along the length direction;

the inside installation in dovetail groove is provided with the spring.

Preferably, the moving contact connecting plate and the moving contact support are integrally formed; the moving contact connecting plate is arranged in parallel with the axis of the shaft hole; one end of the moving contact connecting plate, which is far away from the moving contact support along the length direction, is welded with one side of the trapezoidal groove, and a moving contact is arranged on the side.

Preferably, a spring hook block is arranged inside the trapezoidal groove and used for installing and fixing the spring; the spring hook block comprises a first hook block and a second hook block; the first hook block and the second hook block are L-shaped; the first hook block and the second hook block are symmetrically arranged in two numbers by taking the center of the trapezoidal groove as a reference; the first hook block and the second hook block are integrally formed with the moving contact support.

Preferably, the spring comprises a first spring and a second spring; the first spring is arranged corresponding to the first hook blocks, and one end of the first spring is sleeved on the two first hook blocks; the second spring is arranged corresponding to the second hook blocks, and one end of the second spring is sleeved on the two second hook blocks.

Preferably, both ends of the movable contact support are smoothly arranged.

Compared with the prior art, the beneficial effects of this application are:

(1) According to the movable contact support, the moving contact connecting plate is arranged, so that the welding surface of the moving contact is enlarged, the welding difficulty is reduced, the moving contact is more stable, the moving contact connecting plate and the moving contact support are integrally formed, the production difficulty is low, and the production cost is reduced;

(2) This application is through setting up the spring, first spring is outside, including the second spring, first spring provides the environmental protection for the second spring, reduce the destruction of environmental factor to the second spring, the life-span of second spring is greater than first spring, the second spring provides reserve for integrated device, safeguard function, integrated device damages thereupon when preventing first spring from damaging, and under the condition of abnormal damage, the probability that two springs damaged simultaneously is also lower, the condition of emergency failure has been reduced, the electrical equipment who uses air switch has been protected.

It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the application, nor is it intended to limit the scope of the application. Other features of the present application will become apparent from the following description.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a movable contact assembly for an air switch according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a blank of a movable contact assembly for an air switch according to an embodiment of the present application.

The reference numbers in the figures: 1. a moving contact support; 2. a moving contact connecting plate; 3. a moving contact; 4. a spring; 5. a spring hook block;

11. a shaft hole; 12. a trapezoidal groove;

41. a first spring; 42. second spring

51. A first hook block; 52. and a second hook block.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant application and are not limiting of the application. It should also be noted that for ease of description, only the parts relevant to the application are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 and 2, an embodiment of the present application provides a moving contact assembly for an air switch, including a moving contact support 1, a moving contact connection plate 2, a moving contact 3, and a spring 4;

the moving contact support 1 is arranged in a sea horse shape; one end of the moving contact support 1 is provided with a shaft hole 11 in a penetrating way along the thickness direction and is used for the rotation of the moving contact support 1; one side of one end of the moving contact support 1, which is far away from the shaft hole 11, is provided with a moving contact connecting plate 2, and the other side is fixedly provided with a trapezoidal groove 12;

a moving contact 3 is arranged at one end of the moving contact connecting plate 2 far away from the moving contact bracket 1 along the length direction;

the inside of the trapezoidal groove 12 is provided with a spring 4.

In this embodiment, moving contact support 1 cooperation moving contact connecting plate 2 is used for installing moving contact 3 to for moving contact 3 provides operational environment, moving contact support 1 rotates through the axle in the shaft hole 11, drives the activity of moving contact 3 on the moving contact connecting plate 2 and carries out work, through setting up moving contact connecting plate 2, has enlarged the face of weld of moving contact 3, has reduced the welding degree of difficulty, makes moving contact 3 more stable simultaneously.

In a preferred embodiment, the moving contact connecting plate 2 and the moving contact support 1 are integrally formed; the moving contact connecting plate 2 is arranged in parallel with the axis of the shaft hole 11; one end of the moving contact connecting plate 2, which is far away from the moving contact support 1 along the length direction, is far away from one side of the trapezoidal groove 12, and a moving contact 3 is welded on the one side.

Referring to fig. 1 and 2, in this embodiment, the moving contact connecting plate 2 and the spring hook block 5 are integrally formed with the moving contact support 1, for example, as the blank of fig. 2, the moving contact support 1 may be made of a sheet metal part, and the moving contact connecting plate 2 and the spring hook block 5 may be made of the moving contact support 1 after being punched and bent, which is simple in process, low in manufacturing difficulty, and low in production cost. Meanwhile, the welding installation area of the moving contact 3 is enlarged by the moving contact connecting plate 2, the welding difficulty of the moving contact 3 with a small size is reduced, the production quality is improved, and the production efficiency is increased.

In a preferred embodiment, the inside of the trapezoidal groove 12 is provided with a spring hook block 5 for installing and fixing the spring 4; the spring hook block 5 comprises a first hook block 51 and a second hook block 52; the first hook block 51 and the second hook block 52 are both L-shaped; the height of the first hook block 51 is less than the height of the second hook block 52; the first hook block 51 and the second hook block 52 are symmetrically arranged with the center of the trapezoidal groove 12 as a reference; the first hook block 51 and the second hook block 52 are integrally formed with the movable contact support 1.

In a preferred embodiment, the spring 4 comprises a first spring 41 and a second spring 42; the first spring 41 is disposed corresponding to the first hook blocks 51, and one end of the first spring is sleeved on the two first hook blocks 51; the second spring 42 is disposed corresponding to the second hook blocks 52, and one end of the second spring is sleeved on the two second hook blocks 52.

Referring to fig. 1 and 2, in the embodiment, two first hook blocks 51 symmetrically disposed with respect to the center of the trapezoidal groove 12 form a stable T-shaped structure, so that one end of the corresponding first spring 41 can be stably sleeved on the two first hook blocks 51, and the connection between the second spring 42 and the second hook block 52 is the same. Compared with the two first hook blocks 51, the two second hook blocks 52 are closer to the center of the trapezoidal groove 12, the two second hook blocks 52 are higher than the two first hook blocks 51, the second spring 42 is wrapped by the first spring 41, the axes of the first spring 41 and the second spring 42 penetrate through the center of the trapezoidal groove 12, the first spring 41 is out, the second spring 42 is in, the first spring 41 provides a protective environment for the second spring 42, the damage of environmental factors to the second spring 42 is reduced, the damage speed of the second spring 42 is lower than that of the first spring 41, the second spring 42 provides a standby safety for the whole device, the whole device is prevented from being damaged when the first spring 41 is damaged, in the case of abnormal damage, the probability that the two springs are damaged simultaneously is lower, and the emergency fault situation is reduced.

In a preferred embodiment, both ends of the movable contact support 1 are rounded.

Referring to fig. 1 and fig. 2, in this embodiment, the smooth arrangement increases the rotation smoothness of the movable contact support 1, prevents a stuck phenomenon, and reduces a failure rate.

In the description of the present specification, the terms "connect", "mount", "fix", and the like are to be understood in a broad sense, for example, "connect" may be a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, the description of the terms "one embodiment," "some embodiments," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A moving contact component for an air switch is characterized by comprising a moving contact support, a moving contact connecting plate, a moving contact and a spring;

the moving contact support is arranged in a sea horse shape; one end of the moving contact support penetrates through a shaft hole along the thickness direction and is used for rotating the moving contact support; one side of one end of the moving contact support, which is far away from the shaft hole, is provided with the moving contact connecting plate, and the other side of the moving contact support is fixedly provided with a trapezoidal groove;

the moving contact is arranged at one end of the moving contact connecting plate, which is far away from the moving contact support along the length direction;

the spring is arranged inside the trapezoidal groove.

2. The movable contact assembly for an air switch of claim 1, wherein the movable contact connection plate is integrally formed with the movable contact support; the moving contact connecting plate is arranged in parallel with the axis of the shaft hole; the moving contact is welded on one surface, away from the trapezoidal groove, of one end, away from the moving contact support, of the moving contact connecting plate in the length direction.

3. The movable contact assembly for the air switch according to claim 2, wherein a spring hook block is disposed inside the trapezoidal groove for mounting and fixing the spring; the spring hook block comprises a first hook block and a second hook block; the first hook block and the second hook block are L-shaped; the first hook block and the second hook block are symmetrically arranged in two numbers by taking the center of the trapezoidal groove as a reference; the first hook block and the second hook block are integrally formed with the moving contact support.

4. The movable contact assembly of claim 3, wherein the spring comprises a first spring and a second spring; the first spring is arranged corresponding to the first hook blocks, and one end of the first spring is sleeved on the two first hook blocks; the second spring is arranged corresponding to the second hook blocks, and one end of the second spring is sleeved on the two second hook blocks.

5. The movable contact assembly for an air switch according to claim 4, wherein both ends of the movable contact support are smoothly arranged.