Integrated contact structure for high-voltage cabinet

Abstract

The utility model relates to the technical field of contacts, in particular to an integrated contact structure for a high-voltage cabinet, which comprises a conducting rod, a static contact integrally formed at the end of the conducting rod, a moving contact inserted at one end of the static contact far away from the conducting rod, a fixed spring sleeved in the middle of the outer side wall of the static contact, and a fixed ring fixedly sleeved on the outer side wall of the static contact far away from the conducting rod. Wherein one contact blade is provided with an installation box, the installation box is provided with a temperature sensor, and the center of one side wall of the installation box is provided with a fastening bolt used for fixing the temperature sensor. According to the integrated contact structure for the high-voltage cabinet, the problem of connection between the contact body and the conducting rod in a traditional split structure is avoided through the conducting rod and the static contact which are integrally formed, the overall strength and reliability of the contact structure are improved, and the moving contact is effectively prevented from falling off through the design of the fixing ring; and meanwhile, the arranged temperature sensor can monitor the temperature of the contact in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of contactors, and specifically to an integrated contactor structure for high-voltage switch cabinets. Background Art

[0002] In high-voltage switch cabinets, the contactor structure is a key component for realizing the on-off of circuits. The traditional contactor structure of high-voltage switch cabinets is usually assembled from multiple independent parts. This split structure has problems such as complex installation, low reliability, and large space occupation. With the continuous development of high-voltage electrical equipment, the performance requirements for contactor structures are getting higher and higher.

[0003] The utility model patent with the authorization announcement number CN221057316U discloses a plum blossom contactor, which includes several contact pieces, an installation bracket for installing several contact pieces and having a limiting function, and a binding spring for firmly installing several contact pieces. The installation bracket is composed of an upper positioning ring and a lower positioning ring for limiting the installation of several contact pieces. Several installation holes for pairwise installation of contact pieces are opened on the upper positioning ring, and several openings for installing contact pieces and for limiting are opened on the lower positioning ring. Limiting parts for spaced installation of contact pieces are provided on the opposite side walls corresponding to the installation holes and the openings. The cross-section of the limiting part is trapezoidal, and insulating layers for elastic limiting clamping and having an insulating function are provided on both sides of the limiting part.

[0004] Although this technical solution realizes the spaced limiting installation of contact pieces pairwise installed in the installation holes and the openings by setting limiting parts and insulating layers with elasticity on both sides of the limiting parts, and makes the insulating layers elastically expand on both sides to closely fit the side walls of the contact pieces through the elasticity of the insulating layers, preventing the two plum blossom contactors from being installed in a fitting manner, and at the same time, facilitating installation; however, this split structure under this technical solution has problems such as complex installation, low reliability, and large space occupation, and at the same time, does not monitor the temperature of the contactor. In view of this, we propose an integrated contactor structure for high-voltage switch cabinets. Summary of the Utility Model

[0005] In view of the above defects or deficiencies in the prior art, it is desired to provide an integrated contactor structure for high-voltage switch cabinets.

[0006] In a first aspect, the present application provides an integrated contactor structure for high-voltage switch cabinets, including a conductive rod. A static contactor is integrally formed at the end of the conductive rod. A moving contactor is inserted into the end of the static contactor away from the conductive rod. A fixed spring is sleeved in the middle of the outer side wall of the static contactor. A fixed ring is sleeved and fixed on the outer side wall of the static contactor away from the conductive rod. The fixed ring is composed of two half-rings that can form a complete ring. The opposite ends of the two half-rings are fixed by locking bolts.

[0007] The static contact is composed of a number of contact pieces distributed in an annular array. An installation box is provided on one of the contact pieces. A temperature sensor is installed on the installation box. A fastening bolt for fixing the temperature sensor is provided at the center of one side wall of the installation box.

[0008] According to the technical solution provided by the embodiment of the present application, an arc-shaped block is integrally formed at the end of the contact piece away from the conductive rod. A groove adapted to the size of the arc-shaped block is formed on the outer side wall of the moving contact.

[0009] According to the technical solution provided by the embodiment of the present application, a spring groove adapted to the fixed spring is formed in the middle of the side wall of the contact piece, and a fixing groove adapted to the half-ring is formed on the side wall of the contact piece.

[0010] According to the technical solution provided by the embodiment of the present application, a clamping groove is formed on the side wall of the contact piece close to the moving contact, and a limiting ring adapted to the size of the clamping groove is welded and fixed on the outer side wall of the moving contact.

[0011] According to the technical solution provided by the embodiment of the present application, convex blocks are welded and fixed on the outer side walls at both ends of the half-ring, and a through hole for accommodating the screw rod section of the locking bolt to pass through is formed at the center of the convex block.

[0012] According to the technical solution provided by the embodiment of the present application, the inner diameter of the fixed spring is smaller than the diameter of the ring where the bottom end of the spring groove is located, and the inner diameter of the fixed ring is smaller than or equal to the diameter of the ring where the bottom end of the fixing groove is located.

[0013] According to the technical solution provided by the embodiment of the present application, when the moving contact is inserted into the static contact, the outer side wall of the arc-shaped block abuts against the groove, and the limiting ring is located in the clamping groove.

[0014] In summary, the present technical solution specifically discloses an integrated contact structure for a high-voltage cabinet, which includes a conductive rod. A static contact is integrally formed at the end of the conductive rod. A moving contact is inserted at one end of the static contact away from the conductive rod. A fixed spring is sleeved in the middle of the outer side wall of the static contact. A fixed ring is sleeved and fixed on the outer side wall of the static contact away from the conductive rod. An installation box is provided on one of the contact pieces. A temperature sensor is installed on the installation box. A fastening bolt for fixing the temperature sensor is provided at the center of one side wall of the installation box; the connection problem between the contact body and the conductive rod in the traditional split structure is avoided by the integrally formed conductive rod and static contact, improving the overall strength and reliability of the contact structure. The design of the fixed ring effectively prevents the moving contact from falling off. At the same time, the provided temperature sensor can monitor the temperature of the contact in real time. Description of the Drawings

[0015] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 is an exploded view of the overall structure of the utility model;

[0018] Figure 3 is an exploded view of the fixed ring structure in the utility model;

[0019] In the figure:

[0020] 1. Conductive rod;

[0021] 2. Static contact; 21. Contact piece; 211. Arc-shaped block; 212. Card slot; 213. Spring groove; 214. Fixed slot; 215. Installation box;

[0022] 3. Moving contact; 31. Groove; 32. Limit ring;

[0023] 4. Fixed spring;

[0024] 5. Fixed ring; 51. Half ring; 511. Protrusion; 512. Through hole; 52. Locking bolt;

[0025] 6. Temperature sensor;

[0026] 7. Fastening bolt. Detailed implementation manners

[0027] The following further elaborates the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant utility model and do not limit the utility model. Additionally, it should be noted that for ease of description, only parts related to the utility model are shown in the drawings.

[0028] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will detail the present application with reference to the drawings and in conjunction with the embodiments.

[0029] Please refer to Figures 1 - 3 , the integrated contact structure for high-voltage switchgear includes a conductive rod 1, and is characterized in that: a static contact 2 is integrally formed at the end of the conductive rod 1, a moving contact 3 is inserted at one end of the static contact 2 away from the conductive rod 1, a fixed spring 4 is sleeved in the middle of the outer side wall of the static contact 2, a fixed ring 5 is sleeved and fixed on the outer side wall of the static contact 2 away from the conductive rod 1, the fixed ring 5 is composed of two half rings 51 that can form a complete ring, and the opposite ends of the two half rings 51 are fixed by locking bolts 52;

[0030] The static contact 2 is composed of a number of contact pieces 21 distributed in an annular array. An installation box 215 is provided on one of the contact pieces 21. A temperature sensor 6 is installed on the installation box 215, and a fastening bolt 7 for fixing the temperature sensor 6 is provided at the center of one side wall of the installation box 215.

[0031] In this embodiment, an arc-shaped block 211 is integrally formed at the end of the contact piece 21 away from the conductive rod 1, and a groove 31 adapted to the size of the arc-shaped block 211 is formed on the outer side wall of the moving contact 3; the arc-shaped block 211 and the adapted groove 31 can limit and fix the moving contact 3.

[0032] Furthermore, a spring groove 213 adapted to the fixing spring 4 is formed in the middle of the side wall of the contact piece 21, and a fixing groove 214 adapted to the half-ring 51 is formed on the side wall of the contact piece 21; the spring groove 213 limits the fixing spring 4, and the fixing groove 214 limits the fixing ring 5.

[0033] Secondly, a clamping groove 212 is formed on the side wall of the contact piece 21 close to the moving contact 3, and a limiting ring 32 adapted to the size of the clamping groove 212 is welded and fixed on the outer side wall of the moving contact 3; the limiting ring 32 and the adapted clamping groove 212 effectively prevent the moving contact 3 from falling off.

[0034] Furthermore, convex blocks 511 are welded and fixed on the outer side walls at both ends of the half-ring 51, and a through hole 512 for accommodating the screw section of the locking bolt 52 to pass through is formed at the center of the convex block 511; after the threaded section of the locking bolt 52 passes through the through hole 512, it is locked and fixed.

[0035] Secondly, the inner diameter of the fixing spring 4 is smaller than the diameter of the circle where the bottom end of the spring groove 213 is located, and the inner diameter of the fixing ring 5 is smaller than or equal to the diameter of the circle where the bottom end of the fixing groove 214 is located; the size design of the fixing spring 4 can fix the static contact 2, and the size design of the fixing ring 5 can control the opening and closing size of the end of the static contact 2 close to the moving contact 3, thereby preventing the moving contact 3 from falling off.

[0036] Furthermore, when the moving contact 3 is inserted into the static contact 2, the outer side wall of the arc-shaped block 211 abuts against the groove 31, and the limiting ring 32 is located in the clamping groove 212; the abutment of the arc-shaped block 211 and the groove 31 makes the structure stable and reliable.

[0037] Working principle: When the integrated contact structure for a high-voltage cabinet of the present utility model is in use, the user first inserts the moving contact 3 into the static contact 2, then slews the fixing spring 4 on the static contact 2, slews the fixing ring 5 on the static contact 2, fixes it with the locking bolt 52, and finally installs the temperature sensor 6 in the installation box 215 and fixes it with the fastening bolt 7.

[0038] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept of the utility model. For example, the technical solutions formed by mutually replacing the above features with the technical features disclosed in the present application but not limited to having similar functions.

Claims

1. An integrated contact structure for a high-voltage cabinet, comprising a conductive rod (1), characterized in that: A stationary contact (2) is integrally formed at the end of the conductive rod (1); a moving contact (3) is inserted at one end of the stationary contact (2) away from the conductive rod (1); a fixing spring (4) is sleeved at the middle of the outer wall of the stationary contact (2); a fixing ring (5) is sleeved and fixed on the outer wall of the stationary contact (2) away from the conductive rod (1); the fixing ring (5) is composed of two half rings (51) that can form a complete circular ring; the opposite ends of the two half rings (51) are fixed by locking bolts (52); The stationary contact (2) is composed of a plurality of contact pieces (21) distributed in a ring array, one of the contact pieces (21) is provided with a mounting box (215), a temperature sensor (6) is mounted on the mounting box (215), and a fastening bolt (7) for fixing the temperature sensor (6) is provided at the center of a side wall of the mounting box (215).

2. The integrated contact structure for high-voltage cabinet according to claim 1 is characterized in that: An arc block (211) is integrally formed at the end of the contact piece (21) away from the conductive rod (1), and a groove (31) matching the size of the arc block (211) is provided on the outer side wall of the movable contact (3).

3. The integrated contact structure for high-voltage cabinet according to claim 1 is characterized in that: A spring groove (213) adapted to the fixing spring (4) is provided in the middle of the side wall of the contact piece (21), and a fixing groove (214) adapted to the half ring (51) is provided in the side wall of the contact piece (21).

4. The integrated contact structure for high-voltage cabinet according to claim 2, characterized in that: A slot (212) is provided on the side wall of the contact piece (21) close to the moving contact (3), and a limiting ring (32) matching the size of the slot (212) is welded and fixed on the outer side wall of the moving contact (3).

5. The integrated contact structure for high-voltage cabinet according to claim 1, characterized in that: The outer side walls at both ends of the half ring (51) are welded and fixed with protrusions (511), and the center of the protrusion (511) is provided with a through hole (512) for accommodating the screw rod section of the locking bolt (52) to pass through.

6. The integrated contact structure for high-voltage cabinet according to claim 3, characterized in that: The inner diameter of the fixing spring (4) is smaller than the diameter of the circular ring where the bottom end of the spring groove (213) is located, and the inner diameter of the fixing ring (5) is smaller than or equal to the diameter of the circular ring where the bottom end of the fixing groove (214) is located.

7. The integrated contact structure for high-voltage cabinet according to claim 4, characterized in that: When the moving contact (3) is inserted into the stationary contact (2), the outer wall of the arc block (211) abuts against the groove (31), and the limiting ring (32) is located in the clamping groove (212).

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