Double-contact circuit breaker with temperature measurement function

Abstract

The utility model relates to the technical field of circuit breakers, in particular to a double-contact circuit breaker with a temperature measurement function, which comprises a shell, a temperature sensor and a temperature sensor, one end of the temperature measuring rod is connected with a heat conduction joint; and the bolt passes through the heat conduction joint and is fixedly connected with the static contact. According to the double-contact circuit breaker with the temperature measurement function, under the condition that the internal structure of the circuit breaker is not influenced, only the bottom side of the circuit breaker is provided with the through hole for installing the bolt used for fixing, and then the communication structure is arranged to enable the temperature measurement rod to be installed on the static contact of the circuit breaker, so that the real-time temperature measurement function of the circuit breaker is realized; the temperature measuring rods are installed on the back side, the two sides or the front face of the circuit breaker, and in the actual installation space of the circuit breaker, the temperature measuring rods are selected to be installed at different positions of the circuit breaker, so that the field installation requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to a double-contact circuit breaker with a temperature measurement function. Background Art

[0002] When the circuit breaker is in actual use, when the moving contact is in contact and operating, its contact resistance may become too large and heat up due to factors such as oxidation, poor contact, and environment.

[0003] In the prior art, the name disclosed in application number: CN202121215220.8 is: a circuit breaker temperature measuring device, which includes a circuit breaker body, a control body is fixedly connected to one side of the circuit breaker body, a safety detection switch and a temperature detection panel are provided on one side of the control body, and fixed threaded holes are opened above and below the side of the circuit breaker body close to the control body, and line connection grooves are opened at both ends of the circuit breaker body, and the positions of the fixed threaded holes and the line connection grooves correspond to each other.

[0004] However, the temperature measuring device mentioned in the prior art will occupy too much internal space of the circuit breaker in actual application, affecting the structure and function of the circuit breaker, and is not conducive to the actual installation and use of the circuit breaker. It cannot timely sense the temperature changes of the static contacts. Therefore, it is necessary to design a dual-contact circuit breaker with a temperature measurement function. Utility Model Content

[0005] The purpose of the utility model is to provide a double-contact circuit breaker with a temperature measurement function to solve the problems in the prior art.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A double-contact circuit breaker with a temperature measurement function, comprising:

[0008] a housing, wherein two static contacts are fixedly disposed in the housing;

[0009] A temperature measuring rod, one end of which is connected to a heat conducting joint;

[0010] A bolt passes through the heat-conducting joint and is fixedly connected to the static contact.

[0011] Furthermore, a communication structure is provided on the shell, and a through hole is provided on the shell.

[0012] Furthermore, the thermally conductive joint is installed in the through hole.

[0013] Furthermore, the communication structure includes a connection groove located on the back side of the shell;

[0014] A mounting groove is provided on the back side of the shell, the connecting groove is located in the mounting groove, and the heat conducting joint is connected to the static contact after being inserted into the connecting groove.

[0015] Furthermore, the communication structure includes a through groove;

[0016] The through slot is provided on one side of the shell and is used for inserting the heat conducting joint side into the side of the shell.

[0017] Furthermore, a threaded hole is provided on the static contact, and the end of the bolt passes through the through hole and is threadedly connected to the threaded hole.

[0018] Beneficial effects of the utility model:

[0019] 1. The dual-contact circuit breaker with temperature measurement function of this utility model only has a through hole on the bottom side of the circuit breaker to install the bolts for fixing without affecting the internal structure of the circuit breaker. Then, a connecting structure is provided to allow the temperature measuring rod to be installed on the static contact of the circuit breaker, thereby realizing the real-time temperature measurement function of the circuit breaker;

[0020] 2. The double-contact circuit breaker with temperature measurement function of this invention installs the temperature measuring rod on the back, both sides or front of the circuit breaker. In the actual installation space of the circuit breaker, the temperature measuring rod can be installed at different positions of the circuit breaker to meet the actual installation requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic structural diagram of a double-contact circuit breaker according to Example 1 of the present utility model;

[0023] Figure 2 This utility model Figure 1 Schematic diagram of the mid-section structure;

[0024] Figure 3 This is a schematic structural diagram of a double-contact circuit breaker according to Example 2 of the present utility model;

[0025] Figure 4 This is a schematic structural diagram of a double-contact circuit breaker according to Example 3 of the present utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Housing; 2. Bolts; 3. Temperature measuring rod; 10. Mounting slot; 12. Arc extinguishing chamber; 13. Static contact; 14. Connection slot; 15. Through hole; 16. Through slot; 31. Thermal joint. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1: Double contact circuit breaker with temperature measurement function, such as Figure 1 、 Figure 2 As shown, the double-contact circuit breaker includes a housing 1, which has a modular structure. Two static contacts 13 are fixedly provided in the housing 1. A moving contact is correspondingly provided on each static contact 13. The moving contact is rotatably arranged in the housing 1 and moves in the arc extinguishing chamber 12. The two arc extinguishing chambers 12 are fixedly installed in the housing 1 and are located on one side of the static contact 13.

[0030] A threaded hole is provided on the static contact 13, and a mounting groove 10 is provided on the back side of the shell 1. A connecting groove 14 connected to the interior of the shell 1 is provided in the mounting groove 10. A temperature measuring rod 3 is installed in the connecting groove 14. A thermal conductive joint 31 is fixed at one end of the temperature measuring rod 3. The thermal conductive joint 31 is inserted into the connecting groove 14 and extends to the side of the static contact 13.

[0031] A through hole 15 is provided on the back side of the housing 1, and a bolt 2 is provided in the through hole 15. The bolt 2 passes through the through hole and the thermal joint 31 and is threadedly connected to the threaded hole, thereby fixing the thermal joint 31 on the static contact 13. When the dynamic and static contacts are in contact, the temperature of the static contact 13 is monitored. If a short circuit occurs, the temperature will rise, and the working safety of the double-contact circuit breaker can be monitored in real time.

[0032] Example 2: Figure 3 As shown, two static contacts 13 are fixed in the shell 1, a threaded hole is opened on the static contact 13, and a through hole 15 is opened on the shell 1. The bolt 2 passes through the thermal joint 31, the through hole 15 and is connected and fixed with the threaded hole, and the thermal joint 31 is passed through the through hole 15 to connect with the static contact 13.

[0033] For a finished double-contact circuit breaker, it is only necessary to open a threaded hole and a through hole 15 on the housing 1 of the circuit breaker, and then use a bolt 2 to connect the thermal connector 31 to the static contact 13. Even if the connecting groove 14 is not provided on the housing 1, the temperature measurement function of the double-contact circuit breaker can be increased.

[0034] Example 3: Figure 4As shown, a through slot 16 is provided on one side of the shell 1. The through slot 16 is located on the left or right side of the shell 1. The through slot 16 passes through one side of the shell 1 and is connected to the interior of the shell 1, so that the thermal conductive joint 31 is inserted into the shell 1 from the side and is fixedly connected to the static contact 13 by a bolt 2 passing through the back side of the shell 1.

[0035] The temperature measuring rod 3 can also be connected and installed on the other static contact 13 , and the installation position is located above the shell 1 or on the side of the shell 1 .

[0036] In this embodiment, the model of the temperature measuring rod 3 is WRNK-104.

[0037] When measuring the temperature of the double-contact circuit breaker, if it is not convenient to measure the temperature at the installation position, a multi-position installation method is provided to meet the actual installation and use requirements of the double-contact circuit breaker, to provide the double-contact circuit breaker with a temperature measurement function, and the temperature monitored by the temperature measuring rod 3 is transmitted to the display to display the real-time temperature.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. Double contact circuit breaker with temperature measurement function, characterized in that: The double-contact circuit breaker comprises: A housing (1), wherein two static contacts (13) are fixedly provided in the housing (1); A temperature measuring rod (3), one end of which is connected to a heat conducting joint (31); A bolt (2) passes through the heat-conducting joint (31) and is fixedly connected to the static contact (13).

2. The double-contact circuit breaker with temperature measurement function according to claim 1, characterized in that: The shell (1) is provided with a communication structure, and the shell (1) is provided with a through hole (15).

3. The double-contact circuit breaker with temperature measurement function according to claim 2, characterized in that: The heat-conducting joint (31) is installed in the through hole (15).

4. The double-contact circuit breaker with temperature measurement function according to claim 2, characterized in that: The communication structure comprises a connection groove (14) located on the back side of the housing (1); The back side of the housing (1) is provided with a mounting groove (10), the connecting groove (14) is located in the mounting groove (10), and the heat conducting joint (31) is connected to the static contact (13) after being inserted into the connecting groove (14).

5. The double-contact circuit breaker with temperature measurement function according to claim 2, characterized in that: The communication structure includes a through groove (16); The through groove (16) is opened on one side of the shell (1) and is used to insert the heat conducting joint (31) into the side of the shell (1).

6. The double-contact circuit breaker with temperature measurement function according to any one of claims 2 to 5, characterized in that: A threaded hole is provided on the static contact (13), and the end of the bolt (2) passes through the through hole (15) and is threadedly connected to the threaded hole.

Images