Temperature measurement installation structure of circuit breaker

Abstract

The utility model relates to a temperature measurement installation structure of a circuit breaker, which comprises a pole, a temperature measurement sensor and a moving contact, the pole comprises an upper contact seat, the upper contact seat is arranged at the upper part of the pole, the upper contact seat is provided with an installation position and an installation groove, the installation groove is arranged adjacent to the installation position, the moving contact is installed on the installation position, and the temperature measurement sensor is arranged on the moving contact. And the temperature measuring sensor is mounted in the mounting groove through a hooping structure. According to the application, the mounting groove is formed in the upper contact seat beside the moving contact of the longitudinal rotation isolation vacuum circuit breaker, and the wireless temperature measuring device is stably mounted through the hooping structure.

Description

Technical Field

[0001] This utility model relates to the field of switchgear, and in particular to a temperature measurement installation structure for a circuit breaker. Background Technology

[0002] Temperature monitoring of circuit breaker contacts is a crucial means of preventing overheating faults and ensuring safe equipment operation. This requires installing and fixing wireless temperature sensors on or near the moving contacts of the circuit breaker to measure their temperature. Traditional medium-voltage circuit breakers typically use circular cloverleaf contacts, with the wireless temperature sensor bound to these contacts for temperature monitoring. However, in traditional medium-voltage circuit breakers, the temperature sensor is easily loosened or even detached during the engagement of the circular cloverleaf contact with the stationary contact due to mechanical vibration and long-term wear. This loosening not only affects the accuracy of temperature monitoring but may also pose a safety hazard to the normal operation of the circuit breaker. For longitudinal rotary isolation vacuum circuit breakers, the moving contact has a unique "duckbill" shape. Compared to circular cloverleaf contacts, this shape presents greater challenges in fixing the temperature sensor. The irregular shape of the "duckbill" contact fingers makes it difficult to provide a stable fixing surface, making sensor fixing difficult and prone to detachment. Utility Model Content

[0003] The purpose of this utility model is to solve the above-mentioned technical problems and provide a temperature measurement installation structure for a circuit breaker. This application provides an installation groove on the upper contact seat next to the moving contact of the longitudinal rotary isolation vacuum circuit breaker, and a wireless temperature measurement device is stably installed by means of a clamping structure.

[0004] A temperature measurement mounting structure for a circuit breaker includes a pole, a temperature sensor, and a moving contact. The pole includes an upper contact seat disposed on the upper part of the pole. The upper contact seat has a mounting position and a mounting groove, which are adjacent to the mounting position. The moving contact is mounted on the mounting position, and the temperature sensor is mounted in the mounting groove by a clamping structure.

[0005] According to the temperature measurement installation structure of the circuit breaker in this application, by opening an installation groove next to the moving contact on the upper contact seat of the pole post, the temperature sensor can be clamped and installed, so that the temperature sensor can be stably fixed next to the moving contact. Compared with the fixing structure of the temperature sensor directly fixed to the moving contact, the pole post has less mechanical vibration relative to the moving contact, so that the temperature sensor is not easy to loosen or fall off during long-term use, and the temperature measurement is more accurate.

[0006] Furthermore, the temperature sensor includes a sensor body and a clamp. The upper contact seat has a through hole communicating with the mounting groove. One end of the clamp is connected to one side of the sensor body, and the other end passes through the through hole, wraps around the side of the upper contact seat, and connects to the other side of the sensor body, thereby clamping the sensor body onto the upper contact seat. The through hole allows the clamp to pass through easily, enabling the clamp to wrap around the upper contact seat where the through hole is located, thus firmly fixing the sensor body in the mounting groove.

[0007] Furthermore, the temperature sensor also includes a locking element that locks the band onto the upper contact seat.

[0008] Furthermore, the clamp is a metal clamp. Metal clamps have good structural strength and are suitable for long-term use in the working environment of circuit breakers.

[0009] Furthermore, the temperature sensor is a wireless temperature sensor. Using a wireless temperature sensor eliminates the need for communication lines, thus avoiding interference from the lines on the electrode.

[0010] Furthermore, the upper contact seat is provided with a reinforcing rib in the middle, and a mounting position is provided on each side of the reinforcing rib. There are two moving contacts, which are respectively installed in the mounting positions. The mounting groove is provided next to at least one mounting position.

[0011] Furthermore, the reinforcing rib is provided with a clearance groove, which is connected to the mounting groove, and the temperature sensor extends into the clearance groove.

[0012] Furthermore, the electrode post also includes a solid-sealed electrode post, and the upper contact seat is fixed to the upper part of the solid-sealed electrode post. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the temperature measurement installation structure of the circuit breaker of this utility model.

[0014] Figure 2 This is a perspective view of the temperature measurement installation structure of the circuit breaker of this utility model.

[0015] Figure 3 This is a perspective view of the upper contact seat of this utility model.

[0016] Figure 4 This is an exploded view of the upper contact seat of this utility model.

[0017] Figure 5 This is a cross-sectional view of the upper contact seat of this utility model. Detailed Implementation

[0018] The accompanying drawings illustrate a temperature measurement installation structure for a circuit breaker according to this utility model.

[0019] like Figures 1 to 5 The temperature measurement mounting structure of a circuit breaker shown includes a pole 1, a temperature sensor 2, and a moving contact 3. The pole 1 includes an upper contact seat 11, which is located on the upper part of the pole 1. The upper contact seat 11 has a mounting position 111 and a mounting groove 112, which are adjacent to the mounting position 111. The moving contact 3 is mounted on the mounting position 111. By rotating the pole 1 through the circuit breaker's operating mechanism, the moving contact 3 can be engaged with or isolated from the stationary contact. By opening the mounting groove 112 next to the moving contact 3 on the upper contact seat 11 of the pole 1, the temperature sensor 2 can be clamped and installed, so that the temperature sensor 2 can be stably fixed next to the moving contact 3. Compared with the fixed structure of the temperature sensor 2 directly fixed to the moving contact 3, the pole 1 has less mechanical vibration relative to the moving contact 3, so the temperature sensor 2 is not easy to loosen or fall off during long-term use, and the temperature measurement is more accurate.

[0020] like Figures 3 to 5 As shown in the attached figures of this embodiment, the temperature sensor 2 includes a sensor body 21, a clamp 22, and a locking component. The clamp 22 stably clamps the sensor body 21 onto the upper contact seat 11. The locking component is a locking screw, which locks the clamp 22 onto the upper contact seat 11, thereby locking the positions of the clamp 22 and the sensor body 21, so that the sensor body 21 can stably measure the temperature at the moving contact 3.

[0021] like Figure 5 As shown, the upper contact seat 11 has a through hole 115 in the mounting groove 112. The band 22 is connected to one side of the sensor body 21. The band 22 passes through the through hole 115, then wraps around the side wall of the upper contact seat 11 to the other side of the sensor body 21, and connects to the other side of the sensor body 21 to form a ring-shaped binding structure, thereby binding and fixing the sensor body 21 in the mounting groove 112.

[0022] The clamp 22 is a metal clamp 22, which has good structural strength and is suitable for long-term use in the working environment of the circuit breaker.

[0023] The temperature sensor 2 is a wireless temperature sensor 2. Using a wireless temperature sensor 2 eliminates the need for a communication line, thus avoiding the interference of the line with the operation of the pole 1.

[0024] like Figures 3 to 5As shown, the upper contact seat 11 has a reinforcing rib 113 in the middle, and a fixing hole 116 in the middle of the reinforcing rib 113, so that the upper contact seat 11 is fixed to the upper part of the pole post 1 by bolts and fixing holes 116. There is a mounting position 111 on each side of the reinforcing rib 113. There are two moving contacts 3, which are respectively installed in the mounting positions. The mounting groove 112 is provided next to at least one mounting position 111. The accompanying drawings of this application disclose an embodiment in which a mounting groove 112 is provided next to one of the mounting positions 111.

[0025] like Figure 3 and Figure 4 As shown, the reinforcing rib 113 has an clearance groove 114, which is connected to the mounting groove 112. The temperature sensor 2 extends into the clearance groove 114. By setting the clearance groove 114 to allow the temperature sensor 2 to avoid the mounting position 111, the temperature sensor 2 has sufficient space to be installed and fixed.

[0026] like Figure 1 and Figure 2 As shown, the pole post 1 also includes a solid pole post 12, and the upper contact seat 11 is fixed on the upper part of the solid pole post 12. When the circuit breaker's operating mechanism operates the pole post 1 to rotate, the pole post 1 can be operated to rotate upward, so that the moving contact 3 on the upper contact seat 11 can engage with the stationary contact above.

[0027] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A temperature measuring installation structure for a circuit breaker, characterized in that, The device includes an electrode post, a temperature sensor, and a moving contact. The electrode post includes an upper contact seat, which is disposed on the upper part of the electrode post. The upper contact seat has a mounting position and a mounting groove, which are adjacent to the mounting position. The moving contact is mounted on the mounting position, and the temperature sensor is mounted in the mounting groove through a clamping structure.

2. The temperature measurement mounting structure of the circuit breaker according to claim 1, characterized in that, The temperature sensor includes a sensor body and a clamp. The upper contact seat has a through hole that connects to the mounting groove. One end of the clamp is connected to one side of the sensor body, and the other end passes through the through hole and goes around the side of the upper contact seat to connect to the other side of the sensor body, thereby clamping the sensor body onto the upper contact seat.

3. The temperature measurement installation structure of the circuit breaker according to claim 2, characterized in that, The temperature sensor also includes a locking element that locks the band onto the upper contact seat.

4. The temperature measurement installation structure of the circuit breaker according to claim 2, characterized in that, The band is a metal band.

5. The temperature measurement mounting structure of the circuit breaker according to claim 1, characterized in that, The temperature sensor is a wireless temperature sensor.

6. The temperature measurement mounting structure of the circuit breaker according to claim 1, characterized in that, The upper contact seat is provided with a reinforcing rib in the middle, and a mounting position is provided on each side of the reinforcing rib. There are two moving contacts, which are respectively installed in the mounting positions. The mounting groove is provided next to at least one mounting position.

7. The temperature measurement mounting structure of the circuit breaker according to claim 6, characterized in that, The reinforcing rib has a clearance groove, which is connected to the mounting groove, and the temperature sensor extends into the clearance groove.

8. The temperature measurement mounting structure of the circuit breaker according to claim 1, characterized in that, The electrode post also includes a solid-sealed electrode post, and the upper contact seat is fixed to the upper part of the solid-sealed electrode post.

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