Intelligent switch cabinet

Abstract

The present invention discloses an intelligent switch cabinet, comprising a circuit breaker and a cabinet body, wherein a positioning assembly is provided between the circuit breaker and the middle partition of the cabinet body, which is used to make the circuit breaker move linearly and make the plum blossom contact finger of the circuit breaker accurately dock with the static contact on the cabinet body; the positioning assembly comprises a slide and a bearing; any one of the slide and the bearing is installed on the middle partition, and the other is installed on the bottom plate of the circuit breaker; the slide is arranged along the movement direction of the circuit breaker, and the bearing is placed in the slide. The intelligent switch cabinet of the present invention has the advantages of simple structure, accurate and reliable docking, long service life, automatic temperature monitoring, automatic video monitoring, and high intelligence.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of high-voltage switchgear, and in particular to an intelligent switch cabinet. Background Art

[0002] High-voltage switchgear is an electrification equipment used in power systems. Its function is to open, close, control and protect the power system during power generation, transmission, distribution and energy conversion. The equipment is mainly suitable for various places such as power plants, substations, factories, mines and residential areas. The switchgear has various structural forms. The armored removable AC metal-enclosed switchgear is the most widely used in the market.

[0003] The current mainstream switchgear has five protection functions, and the safety is improved. However, due to the different cabinet structures of equipment manufacturers, the operation process is relatively complicated and requires personnel with certain professional knowledge and practical experience. Otherwise, it is difficult to operate and may easily cause safety accidents. In order to isolate personnel from direct operation, a small number of manufacturers currently use electric trolleys to drive circuit breakers. However, due to defects in the switch cabinet structure, the electric operating mechanism is prone to jamming during operation, and the service life and reliability cannot meet the requirements.

[0004] The existing equipment structure and operation are as follows Figure 1 and Figure 2 As shown:

[0005] like Figure 1 As shown, when the equipment is ready to run, the circuit breaker 7 is pushed to the cabinet 1 by the transfer trolley 8, the transfer trolley 8 is docked with the middle partition 16, and the circuit breaker 7 is pushed along the X direction in the figure onto the track in the cabinet 1. At this time, the circuit breaker 7 is in the test position.

[0006] like Figure 2 As shown, when working, the cabinet door is closed, and the circuit breaker 7 continues to move along the track in the X direction to the working position through the electric trolley 71 at the bottom thereof, and the plum blossom contact finger 74 contacts the static contact 19 in the upper and lower contact boxes 18 installed on the cabinet body 1, completing the circuit connection.

[0007] Due to the limitation of the manufacturing process of the switch cabinet body 1, there is a deviation between the theoretical design width of the cabinet body 1 and the actual width of the cabinet body 1 due to sheet metal bending error and assembly error after manufacturing. In order to ensure that the circuit breaker 7 can smoothly enter the switch cabinet body 1, the width of the cabinet body 1 is usually increased by about 6mm during design to fully ensure that the circuit breaker 7 can smoothly enter. This also brings a new problem. During the operation in the X direction, the circuit breaker 7 will move left and right in the Y direction due to the track gap ( Figure 2As shown in the figure, the two sides of the electric trolley 71 in the circuit breaker 7 are prone to knock against the track wall to generate friction, thereby increasing the movement resistance. When the circuit breaker 7 moves to the point where its sub-component plum blossom contact finger 74 contacts the static contact 19 in the contact box 18, due to the clamping effect of the spring 743 in the plum blossom contact finger 74, the resistance to the entry of the circuit breaker 7 will increase exponentially. The resulting lateral jump can easily cause the circuit breaker 7 to get stuck during operation. In addition, the turbine and worm accessories of the electric trolley that drive the circuit breaker 7 to operate are prone to deformation and wear of components due to non-linear motion and excessive jump of the circuit breaker 7, which ultimately shortens the service life of the equipment.

[0008] In addition, with the development of science and technology, smart grid has also become the inevitable development direction of national power grid construction. Among the six links of smart power grid, namely, intelligent generation, transmission, transformation, distribution, use and dispatch, the substation link occupies a very important position, and its core goal is to build a smart substation. Smart substation is a substation that uses advanced, reliable, integrated and environmentally friendly intelligent equipment, with the basic requirements of digitalization of all station information, networking of communication platform and standardization of information sharing, automatically completing basic functions such as information collection, measurement, control, protection, metering and detection, and can support advanced functions such as real-time automatic control of power grid, intelligent regulation, online analysis and decision-making, collaborative interaction, etc. as needed. The most basic and primary condition of intelligent substation is intelligent components, namely, intelligent circuit breakers 7 and intelligent switchgear. At present, switchgear equipment manufacturers have realized some functions in equipment intelligence, such as online voltage and current detection of switchgear, temperature and humidity detection in the cabinet, etc., but the most core links are still missing: namely, intelligent monitoring of circuit breakers 7, visual monitoring of the internal working status of switchgear equipment, plum blossom contact fingers 74, and working temperature monitoring of the energized circuit of static contacts 19, etc. Summary of the invention

[0009] The technical problem to be solved by the present invention is: in view of the technical problems existing in the prior art, the present invention provides an intelligent switch cabinet with accurate and reliable docking and long service life.

[0010] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0011] An intelligent switch cabinet comprises a circuit breaker and a cabinet body, wherein a positioning assembly is arranged between the circuit breaker and a middle partition of the cabinet body, and is used to make the circuit breaker move linearly and make the plum blossom contact fingers of the circuit breaker accurately dock with the static contacts on the cabinet body; the positioning assembly comprises a slide groove and a bearing; any one of the slide groove and the bearing is installed on the middle partition plate, and the other is installed on the bottom plate of the circuit breaker; the slide groove is arranged along the movement direction of the circuit breaker, and the bearing is placed in the slide groove.

[0012] As a further improvement of the above technical solution:

[0013] The outer diameter of the bearing is consistent with the width of the slide groove.

[0014] The positioning assembly also includes a positioning hole and a positioning column, either of which is arranged at the end of the middle partition, and the other is installed on the contact box mounting plate of the cabinet; the positioning column is inserted into the positioning hole to realize the positioning of the middle partition.

[0015] When the bearing is located on the bottom plate of the circuit breaker, a groove matching the bearing is provided on the support plate of the transfer trolley of the circuit breaker.

[0016] The cabinet is provided with a first camera module for monitoring the movement state of the circuit breaker above the circuit breaker, and the circuit breaker is provided with a mark for facilitating the first camera module to identify the position of the circuit breaker.

[0017] The first camera module includes a first camera, and the first camera is arranged vertically downward.

[0018] The cabinet is provided with a second camera module above the circuit breaker for monitoring the contact state between the plum blossom contact finger and the static contact of the circuit breaker.

[0019] The second camera module includes a second camera, and the second camera faces the junction of the plum blossom contact finger and the static contact.

[0020] A video information processing unit is disposed in the instrument room of the cabinet, and the first camera module is communicatively connected with the video information processing unit.

[0021] The bearing is a bolt bearing.

[0022] Compared with the prior art, the advantages of the present invention are:

[0023] The intelligent switch cabinet of the present invention is provided with a positioning assembly between the circuit breaker and the middle partition of the cabinet, which is used to make the circuit breaker move linearly and make the plum blossom contact finger of the circuit breaker accurately dock with the static contact on the cabinet; the positioning assembly adopts the mode of slide groove and bolt bearing, which has a simple structure, accurate matching and is easy to implement. In addition, a matching form of positioning column / positioning hole is provided between the middle partition and the contact box mounting plate, which can further improve the accuracy of docking.

[0024] In the intelligent switch cabinet of the present invention, the first camera module monitors the running distance and status of the circuit breaker, realizes the intelligent monitoring of the running status of the circuit breaker, and cooperates with the electric trolley travel switch to realize the reliable confirmation of the position of the circuit breaker; the second camera module monitors the opening and closing status between the plum blossom contact finger and the static contact, and the internal working status of the whole machine. Through the network terminal, the background can remotely grasp the video detection status of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a switch cabinet in the prior art (the circuit breaker is in the test position).

[0026] Figure 2 It is a structural schematic diagram of a switch cabinet in the prior art (the circuit breaker is in the working position).

[0027] Figure 3 It is a schematic diagram of the main structure of the switch cabinet of the present invention.

[0028] Figure 4 It is a schematic diagram of the three-dimensional structure of the switch cabinet of the present invention.

[0029] Figure 5 It is a schematic diagram of the structure of the circuit breaker in the present invention.

[0030] Figure 6 It is a schematic diagram of the installation structure of the wireless temperature measurement sensor in the present invention.

[0031] Figure 7 This is a cross-sectional structural diagram of the installation of the wireless temperature sensor in the present invention.

[0032] Figure 8 It is a structural schematic diagram of the wireless temperature measurement sensor in the present invention.

[0033] Fig. 9 This is a flow chart of the temperature measurement method in the present invention.

[0034] Fig.10 This is a schematic diagram of the installation of the position marker in the present invention.

[0035] Fig.11 This is a schematic diagram of the video monitoring principle in the present invention.

[0036] Fig.12 This is one of the three-dimensional structural schematic diagrams of the middle partition of the present invention.

[0037] Fig.13 This is the second schematic diagram of the three-dimensional structure of the middle partition of the present invention.

[0038] Fig.14 It is a schematic diagram of the chute structure of the present invention.

[0039] Fig.15 It is a schematic diagram of the side view structure of the bottom plate of the circuit breaker in the present invention.

[0040] Fig.16 It is a three-dimensional structural diagram of the bottom plate of the circuit breaker in the present invention.

[0041] Fig.17 It is a schematic diagram of the structure of the transfer vehicle in the present invention.

[0042] The numbers in the figure indicate: 1, cabinet; 2, wireless temperature measurement transmitting / receiving antenna; 3, second camera module; 4, first camera module; 5, baffle; 6, right side plate; 7, circuit breaker; 71, electric trolley; 711, bottom plate; 712, bolt bearing; 72, circuit breaker mechanism; 73, pole; 74, plum blossom contact finger; 741, wireless temperature measurement module; 7411, temperature measurement part; 7412, signal transceiver antenna; 7413, wireless temperature measurement sensor; 742, upper contact finger frame; 743, spring; 744, lower contact finger frame; 745, contact finger piece; 75, position Location mark; 8. Transfer trolley; 81. Casters; 82. Car body; 83. Height adjustment wheel; 84. Screw rod; 85. Support plate; 851. Groove; 9. Instrument room; 91. Instrument room mounting plate; 10. Wireless temperature signal processing unit; 11. Video information processing unit; 12. Electric ground knife control module; 13. Electric trolley control module; 14. Instrument room panel; 15. Switch status intelligent temperature measurement integrated indication device; 16. Middle partition; 161. Slide groove; 162. Positioning hole; 17. Contact box mounting plate; 18. Contact box; 19. Static contact. DETAILED DESCRIPTION

[0043] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0044] like Figures 12 to 17As shown, the intelligent switch cabinet of this embodiment includes a cabinet 1 and a circuit breaker 7. The circuit breaker 7 specifically includes a circuit breaker mechanism 72 and a pole 73. The circuit breaker mechanism 72 is installed on an electric trolley 71, a bottom plate 711 is installed at the bottom of the electric trolley 71, and a plum blossom contact finger 74 is installed at the end of the pole 73. A positioning component is provided between the circuit breaker 7 and the middle partition plate 16 of the cabinet 1, which is used to move the circuit breaker 7 linearly and make the plum blossom contact finger 74 of the circuit breaker 7 accurately dock with the static contact 19 on the cabinet 1. Specifically, the positioning assembly includes a slide groove 161 and a bearing 712 (specifically a bolt bearing), wherein the slide groove 161 is arranged in the middle of the middle partition 16 and arranged along the movement direction of the circuit breaker 7, and the bolt bearing 712 is installed on the bottom plate 711 of the circuit breaker 7, and the bolt bearing 712 is placed in the slide groove 161, and the outer diameter of the bolt bearing 712 is consistent with the width of the slide groove 161, and the matching clearance is small, thereby ensuring the precise matching of the bolt bearing 712 and the slide groove 161. During the sliding process of the circuit breaker 7, the bolt bearing 712 placed in the slide groove 161 can ensure that the circuit breaker 7 is in a straight state with a small lateral deviation; in addition, the setting of the bolt bearing 712 reduces the friction between the slide groove 161 during sliding; of course, in other embodiments, the slide groove 161 can also be set on the bottom plate 711 of the circuit breaker 7, and the bolt bearing 712 can be set on the middle partition 16. In addition, a plurality of positioning holes 162 are provided at the end of the middle partition 16, and a matching positioning column (not shown in the figure) is provided on the contact box mounting plate 17 of the cabinet 1. By inserting the positioning column into the positioning hole 162, the middle partition 16 can be accurately positioned, and the accurate positioning between the plum blossom contact finger 74 and the static contact 19 can be achieved by coordinating the setting of the slide groove 161 and the bolt bearing 712. Of course, in other embodiments, the positioning column can also be provided at the end of the middle partition 16, and the positioning hole 162 can be provided on the contact box mounting plate 17.

[0045] In this embodiment, the support plate 85 of the transfer trolley 8 is also provided with a groove 851 matching the bolt bearing 712, so that the circuit breaker 7 is not affected on the transfer trolley 8. By improving the positioning structure on the cabinet 1 structure, when the circuit breaker 7 is running, the electric trolley 71 can move in a straight line (the bolt bearing 712 is embedded in the guide rail of the slide groove 161), which greatly reduces the lateral movement of the circuit breaker 7 during movement, reduces the equipment from getting stuck and the drive components from being damaged; because the position relationship is determined, the plum blossom contact on the circuit breaker 7 is coaxial with the static contact 19 in the contact box 18, and the expansion resistance of the spring 743 of the plum blossom contact is greatly reduced during insertion, and the rolling friction of the bolt bearing 712 also reduces the friction resistance during operation. Through design improvements and practical test verification, the reliability and life of the equipment are greatly improved (the test verifies that the service life of the circuit breaker 7 in and out has increased from less than 2,000 times to 3,000 times).

[0046] In this embodiment, the transfer cart 8 includes a body 82, and multiple screw rods 84 are arranged between the body 82 and the support plate 85. The screw rods 84 are provided with a height adjustment wheel 83, which can adjust the height and level of the support plate 85; multiple universal casters 81 are installed at the bottom of the body 82 for easy movement.

[0047] like Figure 3 and Figure 4 As shown, in this embodiment, the cabinet 1 is provided with a first camera module 4 for monitoring the movement state of the circuit breaker 7 above the circuit breaker 7. The first camera module 4 includes a first camera. A mark (such as a first camera) is provided on the circuit breaker 7 to facilitate the first camera to identify the position of the circuit breaker 7. Fig.10 (As shown, it is a top view of the circuit breaker 7, and the yellow circular sticker in the figure is a mark). In addition, a second camera module 3 for monitoring the contact state between the plum blossom contact finger 74 and the static contact 19 of the circuit breaker 7 is arranged on the cabinet 1 above the circuit breaker 7. The second camera module 3 also includes a second camera. The first camera and the second camera are both installed on the baffle 5 below the instrument room 9. A video information processing unit 11 is provided in the instrument room 9, and each of the first camera and the second camera is communicatively connected to the video information processing unit 11; in addition, an electric ground knife control module 12 and an electric trolley control module 13 are also provided in the instrument room 9, both of which are installed on the instrument room mounting plate 91. As shown in FIG. Fig.11 As shown, when the equipment is pre-working, the electric trolley 71 receives a start instruction (which can be controlled on-site or remotely), the power of the electric trolley 71 is turned on, and at the same time, through the parallel relay, the power of the intelligent video monitoring system is also turned on, the equipment starts to work, and the intelligent monitoring camera (including the first camera and the second camera, with its own light source) turns on automatically. When the circuit breaker 7 moves, the position mark 75 pasted on it moves accordingly, the first camera continuously monitors and calculates the moving distance by itself through the video information processing unit 11. When the moving distance between the test position and the working position of the circuit breaker 7 is a normal value, the display terminal shows that it is working normally, and the subsequent actions of the circuit breaker 7 (such as closing the circuit breaker 7) continue; when a fault occurs and causes the monitoring distance to deviate from the normal value range, the equipment automatically locks, the subsequent actions cannot be performed, and an alarm signal is issued. In addition, the second camera monitors the opening and closing state between the plum blossom contact finger 74 and the static contact 19, and the internal working state of the whole machine. Through the network terminal, the background can remotely grasp the video detection status of the equipment; in addition, when the circuit breaker 7 is in working state and not in action, the video monitoring system can turn off or turn on the second camera at any time through the remote or local power controller.

[0048] like Figures 3 to 11As shown, in this embodiment, it also includes a temperature detection unit for measuring the temperature of the energized circuit where the plum blossom contact finger 74 and the static contact 19 of the circuit breaker 7 are located; the temperature detection unit includes a wireless temperature measurement information processing module and a wireless temperature measurement module 741, and the wireless temperature measurement information processing module is wirelessly connected to the wireless temperature measurement module 741; the temperature measuring portion 7411 of the wireless temperature measurement module 741 is the same shape as the contact finger piece 745 of the plum blossom contact finger 74 of the circuit breaker 7, and is installed on the contact finger frame (including the upper contact finger frame 742 and the lower contact finger frame 744) between two adjacent contact finger pieces 745 of the plum blossom contact finger 74, and the head of the temperature measuring portion 7411 is against the static contact 19 (the same as the contact method between each contact finger piece 745 and the static contact 19) to measure the temperature of the static contact 19, thereby achieving the purpose of measuring the temperature of the energized circuit where the plum blossom contact finger 74 and the static contact 19 are located. The intelligent switch cabinet of the present invention greatly improves the equipment operation control capability through the wireless temperature measurement method of the temperature detection unit, can monitor the temperature parameters of the equipment in real time, improves the intelligence and automation level of the equipment, reduces the use and maintenance costs, and ensures the safety of operators; in addition, when performing the specific design of wireless temperature measurement, the wireless temperature measurement module 741 is highly integrated with the plum blossom contact finger 74, such as Figures 6 to 8 As shown, the temperature measuring portion 7411 of the wireless temperature measuring module 741 is designed to be the same shape as the contact finger piece 745, and is installed in the plum blossom contact finger 74 in the same installation manner, and the circuit breaker 7 is connected along the X direction (such as Figure 4 As shown in the figure, the static contact 19 is moved and inserted into the plum blossom contact finger 74. The temperature measuring part 7411 is tightly attached to the static contact 19 under the preload force of the annular spring 743, and can be in reliable contact with the static contact 19, thereby realizing reliable detection of the temperature of the static contact 19. In addition, there is no need to modify the plum blossom contact finger 74 during disassembly and assembly, so it is suitable for the modification of the existing switch cabinet.

[0049] like Figures 6 to 8 As shown, in this embodiment, the wireless temperature measurement module 741 includes, in addition to the above-mentioned temperature measurement unit 7411 (specifically using a heat-conducting metal sheet), a wireless temperature measurement sensor 7413 and a signal transceiver antenna 7412 (also having a heat-conducting function), the signal transceiver antenna 7412 is installed at the tail of the temperature measurement unit 7411 and abuts against the ends of each adjacent contact finger sheet 745, and the wireless temperature measurement sensor 7413 is installed on the signal transceiver antenna 7412. Figure 3 and Figure 4As shown, the wireless temperature measurement information processing module includes a wireless temperature signal processing unit 10 and a wireless temperature measurement transmitting / receiving antenna 2; the wireless temperature measurement transmitting / receiving antenna 2 is used to transmit a working electrical signal to the wireless temperature measurement module 741 so that the wireless temperature measurement module 741 performs temperature measurement, and receives the temperature signal fed back by the wireless temperature measurement module 741; the wireless temperature signal processing unit 10 is signal-connected to the wireless temperature measurement transmitting / receiving antenna 2, and is used to process and analyze the temperature signal received by the wireless temperature measurement transmitting / receiving antenna 2. When working, the signal transceiver antenna 7412 receives the wireless signal transmitted by the wireless temperature measurement transmitting / receiving antenna 2, and the wireless temperature measurement sensor 7413 starts to work; when detecting, the temperature of the static contact 19 is transferred to the signal transceiver antenna 7412 by the temperature measurement heat-conducting metal sheet with good thermal conductivity, and the signal transceiver antenna 7412 simultaneously conducts heat to the wireless temperature measurement sensor 7413 to realize temperature detection, and the wireless temperature measurement sensor 7413 then feeds back the detected temperature signal to the wireless temperature measurement transmitting / receiving antenna 2 through the signal transceiver antenna 7412, thereby realizing signal transmission. In addition, the wireless temperature measurement sensor 7413 is a passive sensor, and the energy is sent to the wireless temperature measurement sensor 7413 through the wireless temperature measurement transmitting / receiving antenna 2, and the wireless temperature measurement sensor 7413 measures the temperature after receiving the energy.

[0050] like Fig. 9 As shown, when the switch cabinet is working, the wireless temperature measurement sensor 7413 and the contact finger piece 745 are in contact with the surface of the static contact 19, and the wireless temperature measurement transmitting / receiving antenna 2 installed on the right side plate 6 of the cabinet body 1 transmits the working electrical signal to the wireless temperature measurement sensor 7413 installed on the plum blossom contact finger 74. After receiving the electrical signal, the wireless temperature measurement sensor 7413 starts to work (the working power comes from the transmitting end of the wireless temperature measurement transmitting / receiving antenna 2). After the wireless temperature measurement sensor 7413 detects the temperature data, it feeds back the signal to the receiving end of the wireless temperature measurement transmitting / receiving antenna 2, and transmits it to the wireless temperature signal processing unit 10 through the data line, processes and analyzes the temperature measurement data, and then transmits it to the switch status intelligent temperature measurement comprehensive indication device 15 installed on the instrument room panel 14 through the data line to display the detection data. At the same time, the detection data information can be transmitted to the background control room through the wireless network transmitting terminal.

[0051] The intelligent switch cabinet of the present invention can greatly improve the reliability of the equipment and extend the service life of the equipment through the above positioning structure. In addition, the structural improvement is carried out on the original basis without a large increase in cost. The original equipment parts can be used universally, which has good market promotion and application conditions.

[0052] The intelligent switch cabinet of the present invention is newly equipped with a wireless contact temperature measurement system and an intelligent video monitoring system, which greatly improves the equipment operation control capability, makes the equipment operation more intelligent and automated, reduces the equipment use and maintenance costs, and ensures the safety of operators.

[0053] The intelligent switch cabinet of the present invention has all intelligent detection units with data collection, data analysis, data transmission and terminal display functions. It is connected to the backend switchboard through a unified data interface and network terminal, and can realize on-site control and wireless remote control, providing basic conditions for the development of power stations in the direction of intelligence.

[0054] The intelligent switch cabinet of the present invention solves the key problems existing in existing equipment and is of great significance to ensuring power grid safety, upgrading product performance, and reducing operation and maintenance costs.

[0055] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. An intelligent switch cabinet, comprising a circuit breaker (7) and a cabinet body (1), characterized in that: A positioning assembly is provided between the circuit breaker (7) and the middle partition (16) of the cabinet (1) for enabling the circuit breaker (7) to move linearly and for enabling the plum blossom contact finger (74) of the circuit breaker (7) to accurately dock with the static contact (19) on the cabinet (1); the positioning assembly comprises a slide groove (161) and a bearing (712); any one of the slide groove (161) and the bearing (712) is mounted on the middle partition (16), and the other is mounted on the bottom plate (711) of the circuit breaker (7); the slide groove (161) is arranged along the movement direction of the circuit breaker (7), and the bearing (712) is placed in the slide groove (161); The outer diameter of the bearing (712) is consistent with the width of the slide groove (161); The positioning assembly further comprises a positioning hole (162) and a positioning column, wherein any one of the positioning hole (162) and the positioning column is arranged at an end of the middle partition (16), and the other is installed on the contact box mounting plate (17) of the cabinet (1); the positioning column is inserted into the positioning hole (162) to realize the positioning of the middle partition (16); It also includes a temperature detection unit for measuring the temperature of the energized circuit where the plum blossom contact finger (74) and the static contact (19) of the circuit breaker (7) are located; the temperature detection unit includes a wireless temperature measurement information processing module and a wireless temperature measurement module (741), and the wireless temperature measurement information processing module is wirelessly connected to the wireless temperature measurement module (741); the temperature measurement part (7411) of the wireless temperature measurement module (741) is the same shape as the contact finger piece (745) of the plum blossom contact finger (74) of the circuit breaker (7), and is installed on the contact finger frame between two adjacent contact finger pieces (745) of the plum blossom contact finger (74), and the head of the temperature measurement part (7411) abuts against the static contact (19) to measure the temperature of the static contact (19).

2. The intelligent switch cabinet according to claim 1, characterized in that: When the bearing (712) is located on the bottom plate (711) of the circuit breaker (7), a groove (851) matching the bearing (712) is provided on the support plate (85) of the transfer trolley (8) of the circuit breaker (7).

3. The intelligent switch cabinet according to claim 1 or 2, characterized in that: The cabinet (1) is provided with a first camera module (4) above the circuit breaker (7) for monitoring the movement state of the circuit breaker (7), and the circuit breaker (7) is provided with a mark (75) for facilitating the first camera module (4) to identify the position of the circuit breaker (7).

4. The intelligent switch cabinet according to claim 3, characterized in that: The first camera module (4) comprises a first camera, and the first camera is arranged vertically downward.

5. The intelligent switch cabinet according to claim 1 or 2, characterized in that: The cabinet (1) is provided with a second camera module (3) above the circuit breaker (7) for monitoring the contact state between the plum blossom contact finger (74) and the static contact (19) of the circuit breaker (7).

6. The intelligent switch cabinet according to claim 5, characterized in that: The second camera module (3) comprises a second camera, and the second camera faces the junction between the plum blossom contact finger (74) and the static contact (19).

7. The intelligent switch cabinet according to claim 3, characterized in that: A video information processing unit (11) is provided in the instrument room (9) of the cabinet (1), and the first camera module (4) is communicatively connected to the video information processing unit (11).

8. The intelligent switch cabinet according to claim 1 or 2, characterized in that: The bearing (712) is a bolt bearing.

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