Isolation contact support with good heat dissipation effect

Abstract

The utility model discloses an isolation contact support with a good heat dissipation effect, which relates to the field of electrical elements and comprises a left-right through cylinder body, the bottom of the cylinder body is provided with a convex connecting part, the connecting part is provided with a locking through hole communicated with the inside of the cylinder body, the periphery of the cylinder body is provided with two groups of heat dissipation devices, and the two groups of heat dissipation devices are arranged in the cylinder body. The two heat dissipation devices are located on the peripheries of the two ends of the barrel correspondingly. The spring contact fingers are installed in the circumferential grooves in the two ends of the isolation contact, when the moving contact makes contact with the spring contact fingers, heat generated between the moving contact and the spring contact fingers can be dissipated in time by the corresponding heat dissipation devices, potential safety hazards caused by too high temperature are avoided, and meanwhile the service life of the moving contact and the service life of the spring contact fingers are prolonged. And the connecting part is connected with the insulating support.

Description

Technical Field

[0001] This utility model relates to the field of electrical components, specifically to an isolation contact bracket with good heat dissipation. Background Technology

[0002] A direct-acting three-position disconnector is a special type of switchgear that combines the functions of a disconnector and a grounding switch, controlled by a single operating mechanism. Its main characteristic is its three operating positions: closed (main disconnector connected), disconnected (main disconnector disconnected), and grounded (grounding side grounded). Because these three positions are achieved by the same actuator, only one position can be active at a time, effectively preventing potential misoperation issues associated with traditional disconnectors.

[0003] The isolating contact bracket is a key mechanical component in a direct-acting three-position disconnector switch. It is used to fix and support the moving and stationary contacts, ensuring a stable electrical connection or insulation distance during opening, closing, and contacting. Spring-loaded contact fingers are installed in the circumferential grooves at both ends of the inner hole of the isolating contact bracket. The moving contact is slidably inserted into the inner hole of the isolating contact bracket and contacts the spring-loaded contact fingers. Since heat is generated when the moving contact contacts the spring-loaded contact fingers, and existing isolating contact brackets do not have heat dissipation capabilities, this can lead to a problem where heat cannot dissipate in time between the moving contact and the spring-loaded contact fingers, posing a certain safety hazard during use. Utility Model Content

[0004] This utility model provides an isolation contact bracket with good heat dissipation effect, the main purpose of which is to overcome the problem that the existing isolation contact brackets do not have heat dissipation function.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A heat dissipation isolation contact bracket includes a cylindrical body that runs through the left and right sides. The bottom of the cylindrical body is provided with an outwardly protruding connecting part. The connecting part is provided with a locking through hole that communicates with the inside of the cylindrical body. Two sets of heat dissipation devices are provided on the outer periphery of the cylindrical body, and the two sets of heat dissipation devices are respectively located on the outer periphery of both ends of the cylindrical body.

[0007] Furthermore, the heat dissipation device includes an annular body sleeved around the outer periphery of the cylinder and a plurality of heat dissipation blades arranged around the outer periphery of the annular body, with adjacent heat dissipation blades arranged at intervals.

[0008] Furthermore, the cylinder is provided with two guide slots in the length direction to guide the movement of the moving contact, and the two guide slots are arranged symmetrically.

[0009] Furthermore, the connecting part is located in the middle of the bottom surface of the cylinder.

[0010] Furthermore, the top surface of the cylinder is provided with an operating through hole that communicates with its interior, and the operating through hole is positioned opposite the connecting part.

[0011] Furthermore, the inner bottom surface of the cylinder is provided with a groove, and the locking through hole communicates with the groove, extending from the bottom surface of the groove to the bottom surface of the connecting part.

[0012] As can be seen from the above description of this utility model, compared with the prior art, this utility model has the following advantages: Spring contact fingers are installed in the circumferential grooves at both ends of the isolating contact. When the moving contact contacts the spring contact fingers, the heat generated between them is promptly dissipated by the corresponding heat dissipation device, avoiding safety hazards caused by excessive temperature, and also extending the service life of the moving contact and the spring contact fingers. The connecting part is connected to the insulating support. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention.

[0014] Figure 2 This is a structural diagram of the present invention from another angle. Detailed Implementation

[0015] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Reference Figure 1 and Figure 2 A heat dissipation isolation contact bracket includes a cylindrical body 1 extending through the left and right sides. The bottom of the cylindrical body 1 has a protruding connecting portion 2, and the connecting portion 2 has a locking through hole 21 communicating with the interior of the cylindrical body 1. Two sets of heat dissipation devices 3 are provided on the outer periphery of the cylindrical body 1, located at both ends of the cylindrical body 1. Each heat dissipation device 3 includes a ring 31 sleeved around the outer periphery of the cylindrical body 1 and multiple heat dissipation blades 32 arranged around the outer periphery of the ring 31. Adjacent heat dissipation blades 32 are spaced apart, and the ring 31 is fixedly connected to the outer periphery of the cylindrical body 1.

[0019] Reference Figure 1 and Figure 2 The cylinder 1 has two guide grooves 11 along its length to guide the movement of the moving contact. These two guide grooves 11 are symmetrically arranged. Besides guiding the movement of the moving contact, they also prevent rotation, ensuring that the moving contact can only move in a straight line. The machining of the guide grooves 11 is simpler, and the assembly relationship between the guide grooves 11 and the moving contact is a conventional technique in the art, and will not be elaborated further here.

[0020] Reference Figure 1 and Figure 2 The connecting part 21 is located in the middle of the bottom surface of the cylinder 1, and is connected to the insulating support of the direct-acting three-position disconnector. The top surface of the cylinder 1 has an operating through-hole 12 communicating with its interior, and the operating through-hole 12 is directly opposite the connecting part 21. The inner bottom surface of the cylinder 1 has a groove 13, and the locking through-hole 21 communicates with the groove 13. The locking through-hole 21 extends from the bottom surface of the groove 13 to the bottom surface of the connecting part 21, and the groove 13 is also directly opposite the operating through-hole 12. The connecting part 21 is fixedly connected to the insulating support by bolts. In this embodiment, there are two locking through-holes 21. The bolt passes through the locking through-holes 21 and connects to the insulating support. The groove 13 provides clearance for the bolt head, preventing the bolt head from interfering with the movement of the moving contact. The operating through-hole 12 facilitates the insertion of bolts and locking tools, making it convenient for technicians to operate.

[0021] Reference Figure 1 and Figure 2 The main design principle of this utility model is as follows: Spring contact fingers are installed in the circumferential grooves at both ends of the isolation contact. When the moving contact comes into contact with the spring contact fingers, the heat generated between the two will be dissipated in time by the heat dissipation blades 32 of the corresponding heat dissipation device 3, so as to avoid safety hazards caused by excessive temperature and extend the service life of the moving contact and the spring contact fingers.

[0022] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using this concept shall be considered as an infringement of the protection scope of this utility model.

Claims

1. A heat dissipation isolation contact bracket, characterized in that: The application relates to a through cylinder, which comprises a left-right through cylinder body, the bottom of the cylinder body is provided with an outwardly convex connecting part, the connecting part is provided with a locking through hole communicating with the inside of the cylinder body, the outer periphery of the cylinder body is provided with two groups of heat dissipation devices, and the two groups of heat dissipation devices are respectively arranged on the outer periphery of the two ends of the cylinder body.

2. The isolated contact support with good heat dissipation effect according to claim 1, characterized in that: The heat dissipation device comprises a ring body sleeved on the outer periphery of the cylinder body and a plurality of heat dissipation blades annularly arranged on the outer periphery of the ring body, and two adjacent heat dissipation blades are arranged at intervals.

3. The isolated contact support with good heat dissipation effect according to claim 1, characterized in that: The cylinder body is provided with two guide through grooves for guiding the movement of a moving contact in the length direction, and the two guide through grooves are symmetrically arranged.

4. The isolated contact support with good heat dissipation effect according to claim 1, characterized in that: The connecting part is located in the middle of the bottom surface of the cylinder body.

5. The isolated contact support with good heat dissipation effect according to claim 1, characterized in that: The top surface of the cylinder body is provided with an operation through hole communicating with the inside of the cylinder body, and the operation through hole is arranged opposite to the connecting part.

6. The isolated contact support with good heat dissipation effect according to claim 1, characterized in that: The inner bottom surface of the cylinder body is provided with a groove, the locking through hole communicates with the groove, and the locking through hole extends from the bottom surface of the groove to the bottom surface of the connecting part.

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