CN117766349B - Intelligent circuit breaker with angular displacement sensor - Google Patents

Abstract

The invention provides an intelligent circuit breaker with an angular displacement sensor, and relates to the field of intelligent circuit breakers. The intelligent circuit breaker is internally provided with the angular displacement sensor, can monitor the opening and closing state of the intelligent circuit breaker in real time, can discover faults and give an alarm, avoids the problem that the traditional intelligent circuit breaker cannot automatically detect the faults and cannot know the faults of equipment timely, has a structure convenient for opening the equipment, is convenient for maintenance personnel to maintain, avoids the problem that the traditional intelligent circuit breaker needs to open a shell by means of a tool for maintenance, reduces the workload of the maintenance personnel, reduces the working difficulty of the maintenance personnel, and is internally provided with the heat dissipation structure, thereby avoiding the problem that the traditional intelligent circuit breaker dissipates heat only through a heat dissipation port and has poor heat dissipation performance, prolonging the service life of the equipment and greatly improving the use effect of the equipment.

Description

An intelligent circuit breaker with angular displacement sensor

Technical Field

The invention relates to the field of intelligent circuit breakers, and in particular to an intelligent circuit breaker with an angular displacement sensor.

Background technique

An intelligent circuit breaker is a device used to control and protect low-voltage power distribution networks. When the device is in use, the internal mechanism is always in a pre-energy storage position. As long as the circuit breaker receives a closing command, it can be closed instantly.

After searching, the applicant found that a Chinese patent disclosed an "intelligent circuit breaker" with a publication (announcement) number of "CN112002575A". The patent mainly uses a sensor module to upload current information, voltage information and temperature information to a cloud server through a communication module, and analyzes the warning level classification model trained by the cloud server to obtain the warning level, and remotely controls the circuit breaker body according to different warning levels to achieve intelligent remote control. However, the traditional intelligent circuit breaker does not have a maintenance-friendly device inside, and cannot automatically detect faults, so it is impossible to understand the faults of the equipment in a timely manner, resulting in the inability to repair the equipment in a timely manner. When repairing the equipment, the staff also needs to use tools to open the outer shell for repair. The steps are cumbersome and complicated, which increases the workload and difficulty of the staff. In addition, the traditional intelligent circuit breaker only dissipates heat through the heat dissipation port, and the heat dissipation performance is poor, which makes the equipment prone to overheating and damages internal components, reducing the service life of the equipment and greatly reducing the use effect of the equipment. At this time, an intelligent circuit breaker with an angular displacement sensor is needed to solve the above-mentioned problems.

Summary of the invention

1. Technical issues to be resolved

In view of the deficiencies in the prior art, the present invention provides an intelligent circuit breaker with an angular displacement sensor, which solves the problem that the traditional intelligent circuit breaker has no internal equipment that is easy to maintain and cannot automatically perform fault detection, so the fault of the equipment cannot be timely understood, resulting in the equipment being unable to be repaired in time. When the equipment is being repaired, the staff is also required to use tools to open the outer shell for repair. The steps are cumbersome and complicated, which increases the workload and work difficulty of the staff. In addition, the traditional intelligent circuit breaker only dissipates heat through the heat dissipation port, and the heat dissipation performance is poor, which makes the equipment prone to overheating and damages internal components, reduces the service life of the equipment, and greatly reduces the use effect of the equipment.

(II) Technical solution

To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent circuit breaker with an angular displacement sensor, comprising a circuit breaker body and a circuit breaker door body, a first motor cavity is opened in the front of the lower side of the inside of the circuit breaker body, a ring cavity is opened on the right side of the inner wall of the first motor cavity, two sliding grooves are opened at the bottom of the left side of the inner wall of the circuit breaker body, a first motor is fixedly connected to the left side of the inner wall of the first motor cavity, a belt is rotatably connected to the left side of the inner wall of the ring cavity, the front and rear sides of the inner wall of the belt are meshed with first gears, and the inner walls of the two first gears are provided with fixed structures with variable covering ranges.

Preferably, the fixing structure includes a threaded rod, the left side of the threaded rod wall is fixedly connected to the inner wall of the corresponding first gear, the right end of the threaded rod is threadedly connected to a threaded sleeve, two spring grooves matching the corresponding sliding grooves are provided on the left side of the circuit breaker door body, the right sides of the inner walls of the two spring grooves are fixedly connected to springs, the left ends of the two springs are fixedly connected to arc-shaped fixing blocks, an angular displacement sensor is provided on the upper side of the inner wall of the sliding groove below the left side of the inner wall of the circuit breaker body, and a heat dissipation structure with a variable covering range is provided at the rear of the upper side of the inner side of the circuit breaker body.

Furthermore, the heat dissipation structure includes a circulation cavity opened at the rear upper side of the circuit breaker body, a refrigeration cavity is opened on the upper side of the inner wall of the circulation cavity, a circulation heat dissipation groove is opened on the upper left side of the inner wall of the circulation cavity, an electric pump cavity is opened on the lower right side of the inner wall of the circulation cavity, a plurality of semiconductor refrigeration sheets are arranged on the lower side of the inner wall of the refrigeration cavity, a plurality of semiconductor refrigeration sheets are arranged on the bottom surfaces of the semiconductor refrigeration sheets, a liquid pump is fixedly connected to the lower side of the inner wall of the electric pump cavity, a liquid pump input end is fixedly connected to a liquid pump pipe, and a liquid delivery pipe is fixedly connected to the output end of the liquid pump, an angular displacement sensor is arranged inside, and can monitor the opening and closing of the intelligent circuit breaker in real time. The device can detect faults and give an alarm when the device is in a closed state, thus avoiding the problem that traditional intelligent circuit breakers cannot automatically detect faults and cannot timely understand the faults of the equipment. The device has a structure that is easy to open, which is convenient for maintenance personnel to repair, thus avoiding the problem that traditional intelligent circuit breakers require staff to use tools to open the casing for maintenance, thus reducing the workload of maintenance personnel and the difficulty of their work. In addition, a heat dissipation structure is provided inside the device, thus avoiding the problem that traditional intelligent circuit breakers only dissipate heat through the heat dissipation port and have poor heat dissipation performance, thus increasing the service life of the equipment and greatly improving the use effect of the equipment.

Furthermore, the output end of the first motor passes through the right side of the inner wall of the first motor cavity and is fixedly connected to the inner wall of the corresponding first gear, the right ends of the two threaded rods pass through the right side of the inner wall of the annular cavity and extend to the left side of the inner wall of the corresponding sliding groove, the surfaces of the two arc-shaped fixed blocks are respectively in contact with the inner walls of the corresponding sliding grooves, the bottom surfaces of the multiple cold conduction plates are fixedly connected to the lower side of the inner wall of the circulation cavity, one end of the liquid extraction pipe passes through the left side of the inner wall of the electric pump cavity and extends to the right side of the inner wall of the circulation cavity, and one end of the liquid delivery pipe passes through the right side of the inner wall of the electric pump cavity and extends to one side of the inner wall of the circulation heat dissipation groove.

Furthermore, a protective column is fixedly connected to the right side of the two arc-shaped fixed blocks, a protective groove is opened on the right side of the inner wall of the two spring grooves, a first sliding groove is opened on the upper and lower sides of the inner wall of the two protective grooves, and one side of the two corresponding inner walls of the first sliding grooves is slidably connected to the surface of the corresponding protective column through one side of the slider.

Furthermore, second sliding grooves are provided on the left sides of the upper and lower inner walls of the two sliding grooves, and the inner walls of the two corresponding second sliding grooves are slidably connected to the surface of the corresponding threaded sleeve through one side of the slider.

Furthermore, a driving cavity is opened on the lower side of the inner wall of the circulation cavity, a second motor cavity is opened on the lower side of the inner wall of the driving cavity, a second motor is fixedly connected to the lower side of the inner wall of the second motor cavity, and the output end of the second motor passes through the upper side of the inner wall of the second motor cavity and extends to the lower side of the inner wall of the driving cavity.

Furthermore, the output end of the second motor is fixedly connected to the second gear, and the left and right sides of the second gear are meshed with the third gear, the inner walls of the two third gears are fixedly connected to stirring rods, the upper ends of the two stirring rods penetrate the upper side of the inner wall of the driving cavity and extend to the lower side of the inner wall of the circulation cavity and are rotatably connected to the upper side of the inner wall of the circulation cavity, a plurality of stirring blades are fixedly connected to the upper side of the surface of the two stirring rods, and a plurality of heat dissipation ports are provided on the upper side of the inner wall of the refrigeration cavity.

(III) Beneficial effects

The present invention provides an intelligent circuit breaker with an angular displacement sensor, which has the following beneficial effects:

1. By setting an angular displacement sensor, the opening and closing state of the circuit breaker body can be monitored in real time. When the circuit breaker body fails and cannot be closed or disconnected, the sensor can detect the fault in time and alarm. By setting a first motor, a belt, a first gear, a threaded rod, a threaded sleeve, a circuit breaker door, a spring groove, a spring, an arc-shaped fixing block, an angular displacement sensor and other combined structures, it is ensured that the equipment is easy to open and thus easy to maintain. By setting a semiconductor refrigeration sheet, a cold plate, a liquid pump, a liquid pumping pipe, a liquid delivery pipe and other combined structures, an angular displacement sensor is provided inside the device, which can monitor the opening and closing state of the intelligent circuit breaker in real time. It can detect faults and give alarms, avoiding the problem that traditional intelligent circuit breakers cannot automatically detect faults and cannot timely understand equipment faults. The device has a structure that is easy to open the device, which is convenient for maintenance personnel to repair, avoiding the problem that traditional intelligent circuit breakers require staff to use tools to open the casing for maintenance, reducing the workload of maintenance personnel and the difficulty of their work. In addition, the device is equipped with a heat dissipation structure inside, avoiding the problem that traditional intelligent circuit breakers only dissipate heat through the heat dissipation port and have poor heat dissipation performance, increasing the service life of the equipment and greatly improving the use effect of the equipment.

2. By setting the penetration effect between the first motor and the first motor cavity and the first gear, the fixing effect between the first motor and the first gear, the penetration effect between the threaded rod and the ring cavity and the sliding groove, the contact effect between the arc-shaped fixing block and the sliding groove, etc., the device has a better connection effect and can better connect the components inside the device, thereby ensuring the stable operation of the equipment, increasing the service life of the equipment, and ensuring the stability and safety of the equipment during use.

3. By setting a protective column, the spring can be protected to prevent the spring from bending, thereby increasing the service life of the spring. By setting a first slide groove and using a matching slider, the protective column can be limited to prevent the protective column from popping out of the protective groove, thereby ensuring the stability of the equipment during use. By setting a second slide groove and using a matching slider, the threaded sleeve can be limited to prevent it from rotating, thereby ensuring the normal operation of the equipment.

4. By setting up the second motor, the second gear, the third gear, the stirring rod and the stirring blade, the refrigerant liquid inside the circulation chamber can be stirred, so that the refrigerant liquid inside the refrigeration chamber can be cooled quickly. By setting up the heat dissipation port, the heat released by the semiconductor refrigeration plate can be dissipated to prevent the semiconductor refrigeration plate from burning out, thereby ensuring the stability of the equipment during use and improving the use effect of the equipment.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a partial cross-sectional structure of the overall front view of the present invention;

FIG2 is an enlarged structural schematic diagram of part A in FIG1 of the present invention;

FIG3 is a schematic diagram of a cross-sectional structure of a first gear of the present invention;

FIG4 is a schematic diagram of the three-dimensional structure of the arc-shaped fixing block of the present invention;

FIG5 is a schematic diagram of the cross-sectional structure of the overall rear view of the present invention;

FIG6 is an enlarged structural schematic diagram of part B in FIG5 of the present invention;

FIG7 is a schematic diagram of a cross-sectional structure of a second gear of the present invention;

FIG8 is a schematic diagram of the three-dimensional structure of the second gear of the present invention;

FIG9 is a schematic diagram of the three-dimensional structure of the stirring rod of the present invention;

FIG. 10 is a schematic diagram of the overall three-dimensional structure of the present invention.

Among them, 1. circuit breaker body; 2. first motor cavity; 3. annular cavity; 4. sliding groove; 5. first motor; 6. belt; 7. first gear; 8. threaded rod; 9. threaded sleeve; 10. circuit breaker door; 11. spring groove; 12. spring; 13. arc-shaped fixing block; 14. angular displacement sensor; 15. circulation cavity; 16. refrigeration cavity; 17. circulation heat dissipation groove; 18. electric pump cavity; 19. semiconductor refrigeration plate; 20. cold plate; 21. liquid pump; 22. liquid extraction pipe; 23. liquid delivery pipe; 24. protective column; 25. protective groove; 26. first slide groove; 27. second slide groove; 28. drive cavity; 29. second motor cavity; 30. second motor; 31. second gear; 32. third gear; 34. stirring rod; 35. stirring blade; 36. heat dissipation port.

Detailed ways

The following will be combined with the 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 described embodiments 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 creative work are within the scope of protection of the present invention.

Embodiment 1:

As shown in Fig. 1-10, an embodiment of the present invention provides an intelligent circuit breaker with an angular displacement sensor, including a circuit breaker body 1 and a circuit breaker door body 10, a first motor cavity 2 is provided at the front of the lower side of the inside of the circuit breaker body 1, an annular cavity 3 is provided on the right side of the inner wall of the first motor cavity 2, two sliding grooves 4 are provided at the bottom of the left side of the inner wall of the circuit breaker body 1, a first motor 5 is fixedly connected to the left side of the inner wall of the first motor cavity 2, a belt 6 is rotatably connected to the left side of the inner wall of the annular cavity 3, and the front and rear sides of the inner wall of the belt 6 are meshed with first gears 7, and the inner walls of the two first gears 7 are provided with fixed structures with variable covering ranges, and the fixed structures include A threaded rod 8, the left side of the rod wall of the threaded rod 8 is fixedly connected to the inner wall of the corresponding first gear 7, the right end of the threaded rod 8 is threadedly connected to a threaded sleeve 9, the left side of the circuit breaker door body 10 is provided with two spring grooves 11 respectively matching the corresponding sliding grooves 4, the right sides of the inner walls of the two spring grooves 11 are fixedly connected with springs 12, the left ends of the two springs 12 are fixedly connected with arc-shaped fixed blocks 13, the lower left side of the inner wall of the circuit breaker body 1 is located on the upper side of the inner wall of the sliding groove 4, and a heat dissipation structure with a variable covering range is provided at the rear of the upper side of the inner part of the circuit breaker body 1, and the heat dissipation structure includes a heat dissipation structure provided inside the circuit breaker body 1 A circulation cavity 15 is provided at the upper rear side, a refrigeration cavity 16 is provided at the upper side of the inner wall of the circulation cavity 15, a circulation heat dissipation groove 17 is provided at the upper left side of the inner wall of the circulation cavity 15, an electric pump cavity 18 is provided at the lower right side of the inner wall of the circulation cavity 15, a plurality of semiconductor refrigeration sheets 19 are provided at the lower side of the inner wall of the refrigeration cavity 16, a plurality of semiconductor refrigeration sheets 19 are provided at the bottom surface of each of the semiconductor refrigeration sheets 19, a liquid pump 21 is fixedly connected to the lower side of the inner wall of the electric pump cavity 18, a liquid pump 21 is fixedly connected to the input end of the liquid pump 21 with a liquid pumping pipe 22, a liquid pumping pipe 23 is fixedly connected to the output end of the liquid pump 21, an angular displacement sensor 14 is provided inside, and the opening and closing state of the intelligent circuit breaker can be monitored in real time The device can detect faults and give an alarm, thus avoiding the problem that the traditional intelligent circuit breaker cannot automatically detect faults and cannot timely understand the faults of the equipment. The device has a structure that is easy to open the device, which is convenient for maintenance personnel to repair, thus avoiding the problem that the traditional intelligent circuit breaker requires the staff to use tools to open the shell for maintenance, thus reducing the workload of the maintenance personnel and the difficulty of their work. In addition, the device is provided with a heat dissipation structure inside, thus avoiding the problem that the traditional intelligent circuit breaker only dissipates heat through the heat dissipation port 36 and has poor heat dissipation performance, thus increasing the service life of the equipment and greatly improving the use effect of the equipment.

Embodiment 2:

As shown in FIG. 2-7 , an embodiment of the present invention provides an intelligent circuit breaker with an angular displacement sensor, which is further expanded according to the content of the specific embodiment 1:

Among them, the output end of the first motor 5 passes through the right side of the inner wall of the first motor cavity 2 and is fixedly connected to the inner wall of the corresponding first gear 7, the right ends of the two threaded rods 8 pass through the right side of the inner wall of the annular cavity 3 and extend to the left side of the inner wall of the corresponding sliding groove 4, the surfaces of the two arc-shaped fixed blocks 13 are respectively in contact with the inner walls of the corresponding sliding grooves 4, the bottom surfaces of the multiple cold conduction plates 20 are fixedly connected to the lower side of the inner wall of the circulation cavity 15, one end of the liquid extraction pipe 22 passes through the left side of the inner wall of the electric pump cavity 18 and extends to the right side of the inner wall of the circulation cavity 15, and one end of the liquid delivery pipe 23 passes through the right side of the inner wall of the electric pump cavity 18 and extends to one side of the inner wall of the circulation heat dissipation groove 17, which has a better connection effect, can better connect the components inside the equipment, ensure the stable operation of the equipment, increase the service life of the equipment, and ensure the stability and safety of the equipment during use.

Embodiment three:

As shown in Figures 1-4, an embodiment of the present invention provides an intelligent circuit breaker with an angular displacement sensor, which is further expanded according to the content of the specific embodiment 1:

Among them, the right sides of the two arc-shaped fixed blocks 13 are fixedly connected with protection columns 24. By setting the protection columns 24, the spring 12 can be protected to prevent the spring 12 from bending, thereby increasing the service life of the spring 12. The right sides of the inner walls of the two spring grooves 11 are provided with protection grooves 25, and the upper and lower sides of the inner walls of the two protection grooves 25 are provided with first sliding grooves 26. One side of the inner walls of the two corresponding first sliding grooves 26 is slidably connected with the surface of the corresponding protection column 24 through one side of the slider. By setting the first sliding grooves 26, the matching slider can be used to limit the protection column 24 to prevent the protection column 24 from popping out of the protection groove 25, thereby ensuring the stability of the equipment during use. The left sides of the upper and lower sides of the inner walls of the two sliding grooves 4 are provided with second sliding grooves 27, and the inner walls of the two corresponding second sliding grooves 27 are slidably connected with the surface of the corresponding threaded sleeve 9 through one side of the slider. By setting the second sliding grooves 27, the matching slider can be used to limit the threaded sleeve 9 to prevent it from rotating, thereby ensuring the normal operation of the equipment.

Embodiment 4:

As shown in FIG. 5-9 , an embodiment of the present invention provides an intelligent circuit breaker with an angular displacement sensor, which is further expanded according to the content of the specific embodiment 3:

Among them, a driving chamber 28 is opened on the lower side of the inner wall of the circulation chamber 15, and a second motor chamber 29 is opened on the lower side of the inner wall of the driving chamber 28. A second motor 30 is fixedly connected to the lower side of the inner wall of the second motor chamber 29, and the output end of the second motor 30 passes through the upper side of the inner wall of the second motor chamber 29 and extends to the lower side of the inner wall of the driving chamber 28. The output end of the second motor 30 is fixedly connected to a second gear 31, and the left and right sides of the second gear 31 are meshed and connected with a third gear 32. The inner walls of the two third gears 32 are fixedly connected with stirring rods 34, and the upper ends of the two stirring rods 34 pass through the upper side of the inner wall of the driving chamber 28 and extend to the lower side of the inner wall of the circulation chamber 15. The second gear 31 is a gear that is rotated to the side and is connected to the upper side of the inner wall of the circulation chamber 15. The upper sides of the surfaces of the two stirring rods 34 are fixedly connected with a plurality of stirring blades 35. By arranging the second motor 30, the second gear 31, the third gear 32, the stirring rods 34 and the stirring blades 35, the refrigerant in the circulation chamber 15 can be stirred, so that the refrigerant in the circulation chamber 15 can be quickly cooled. The upper side of the inner wall of the refrigeration chamber 16 is provided with a plurality of heat dissipation ports 36. By arranging the heat dissipation ports 36, the heat released by the semiconductor refrigeration plate 19 can be dissipated to prevent the semiconductor refrigeration plate 19 from burning out, thereby ensuring the stability of the equipment during use and improving the use effect of the equipment.

Working principle: The device can monitor the opening and closing state of the circuit breaker body 1 in real time by setting an angular displacement sensor 14. When the circuit breaker body 1 fails and cannot be closed or disconnected, the angular displacement sensor 14 can detect the fault in time and alarm. At this time, the first motor 5 drives the corresponding first gear 7 to rotate, thereby driving the belt 6 to rotate, and the belt 6 drives the corresponding first gear 7 to rotate. The two first gears 7 drive the two threaded rods 8 to rotate, so that the two threaded sleeves 9 move, and push the arc-shaped fixed block 13 to move into the spring groove 11, so that the circuit breaker door body 10 can be opened, and the first motor 5 is reversed, so that the above steps are reversed, so that the threaded sleeve 9 returns to its original position. After the maintenance is completed, the circuit breaker door body 10 is directly closed, and the arc-shaped fixed block 13 rebounds to the sliding groove 4 under the elastic action of the spring 12. At this point, the device is easy to open the shell and thus easy to maintain. The circulation cavity 15 and the circulation heat dissipation groove 17 are filled with refrigerant, and the semiconductor refrigeration plate 19 controls the inside of the circulation cavity 15 through the cold conduction plate 20. The device is cooled by the cold liquid, and the liquid pump 21 can extract the refrigerated refrigerant in the circulation chamber 15 through the liquid pumping pipe 22, and then the refrigeration liquid is pumped into the circulation heat dissipation groove 17 through the liquid delivery pipe 23, and this is repeated, so that the refrigerant cools the device, thereby completing the heat dissipation effect of the device. The device is provided with an angular displacement sensor 14 inside, which can monitor the opening and closing state of the intelligent circuit breaker in real time, can detect faults and alarm, and avoids the problem that the traditional intelligent circuit breaker cannot automatically detect faults and cannot timely understand the fault of the equipment. The device has a structure that is easy to open the device, which is convenient for maintenance personnel to repair, and avoids the problem that the traditional intelligent circuit breaker requires the staff to use tools to open the shell for maintenance, reducing the workload of the maintenance personnel and reducing the difficulty of the maintenance personnel. In addition, the device is provided with a heat dissipation structure inside, avoiding the problem that the traditional intelligent circuit breaker only dissipates heat through the heat dissipation port 36 and has poor heat dissipation performance, thereby increasing the service life of the equipment and greatly improving the use effect of the equipment.

By setting the protection column 24, the spring 12 can be protected to prevent the spring 12 from bending, thereby increasing the service life of the spring 12; by setting the first slide groove 26 and using the matching slider, the protection column 24 can be limited to prevent the protection column 24 from popping out of the protection groove 25, thereby ensuring the stability of the equipment during use; by setting the second slide groove 27 and using the matching slider, the threaded sleeve 9 can be limited to prevent it from rotating, thereby ensuring the normal operation of the equipment; by setting the second motor 30, the second gear 31, the third gear 32, the stirring rod 34 and the stirring blade 35, the refrigerant liquid inside the circulation chamber 15 can be stirred, so that the refrigerant liquid inside the circulation chamber 15 can be quickly cooled; by setting the heat dissipation port 36, the heat released by the semiconductor refrigeration plate 19 can be dissipated to prevent the semiconductor refrigeration plate 19 from burning out, thereby ensuring the stability of the equipment during use and improving the use effect of the equipment.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. The utility model provides an intelligent circuit breaker of area angular displacement sensor, includes circuit breaker body (1) and circuit breaker door body (10), its characterized in that: the front of the lower side of the inner part of the circuit breaker body (1) is provided with a first motor cavity (2), the right side of the inner wall of the first motor cavity (2) is provided with a ring cavity (3), the lowest of the left side of the inner wall of the circuit breaker body (1) is provided with two sliding grooves (4), the left side of the inner wall of the first motor cavity (2) is fixedly connected with a first motor (5), the left side of the inner wall of the ring cavity (3) is rotationally connected with a belt (6), the front side and the rear side of the inner wall of the belt (6) are respectively connected with a first gear (7) in a meshed manner, The two inner walls of the first gears (7) are provided with fixing structures with changeable coating ranges, the fixing structures comprise threaded rods (8), the left sides of the walls of the threaded rods (8) are fixedly connected with the inner walls of the corresponding first gears (7), the right ends of the threaded rods (8) are connected with threaded sleeves (9) in a threaded manner, the left sides of the door bodies (10) of the circuit breakers are provided with two spring grooves (11) which are matched with corresponding sliding grooves (4) respectively, the right sides of the inner walls of the spring grooves (11) are fixedly connected with springs (12), the left ends of the springs (12) are fixedly connected with arc-shaped fixing blocks (13), angular displacement sensors (14) are arranged on the upper sides of the inner walls of the sliding grooves (4) below the left sides of the inner walls of the circuit breaker bodies (1), The angular displacement sensor (14) can monitor the opening and closing states of the intelligent circuit breaker in real time, a heat dissipation structure with a changeable coating range is arranged at the rear of the upper side inside the circuit breaker body (1), the heat dissipation structure comprises a circulation cavity (15) arranged at the rear of the upper side inside the circuit breaker body (1), a refrigerating cavity (16) is arranged at the upper side of the inner wall of the circulation cavity (15), a circulation heat dissipation groove (17) is arranged at the upper side of the left side of the inner wall of the circulation cavity (15), an electric pump cavity (18) is arranged at the lower side of the right side of the inner wall of the circulation cavity (15), a plurality of semiconductor refrigerating sheets (19) are arranged at the lower side of the inner wall of the refrigerating cavity (16), The bottom surfaces of the semiconductor refrigerating sheets (19) are respectively provided with a cold guide plate (20), the lower side of the inner wall of the electric pump cavity (18) is fixedly connected with a liquid suction pump (21), the input end of the liquid suction pump (21) is fixedly connected with a liquid suction pipe (22), the output end of the liquid suction pump (21) is fixedly connected with a liquid delivery pipe (23), the output end of the first motor (5) penetrates through the right side of the inner wall of the first motor cavity (2) and is fixedly connected with the inner wall of a corresponding first gear (7), the right ends of the two threaded rods (8) penetrate through the right side of the inner wall of the annular cavity (3) and extend to the left side of the inner wall of a corresponding sliding groove (4), the surfaces of the two arc-shaped fixed blocks (13) are respectively contacted with the inner wall of the corresponding sliding groove (4), The bottom surfaces of the plurality of cold guide plates (20) are fixedly connected with the lower side of the inner wall of the circulation cavity (15), one end of the liquid suction pipe (22) penetrates through the left side of the inner wall of the electric pump cavity (18) and extends to the right side of the inner wall of the circulation cavity (15), and one end of the liquid feeding pipe (23) penetrates through the right side of the inner wall of the electric pump cavity (18) and extends to one side of the inner wall of the circulation heat dissipation groove (17).

2. An intelligent circuit breaker with angular displacement sensor according to claim 1, wherein: the right sides of two arc fixed block (13) are all fixedly connected with guard post (24), two guard groove (25) have all been seted up on the right side of bullet groove (11) inner wall, two first spout (26) have all been seted up to the upper and lower both sides of guard groove (25) inner wall, two corresponding one side of first spout (26) inner wall all through the one side of slider with the surface sliding connection of corresponding guard post (24) jointly.

3. An intelligent circuit breaker with angular displacement sensor according to claim 1, wherein: the left sides of the upper side and the lower side of the inner wall of the sliding groove (4) are respectively provided with a second sliding groove (27), and the inner walls of the two corresponding second sliding grooves (27) are both connected with the surfaces of the corresponding threaded sleeves (9) in a sliding way through one surface of the sliding block.

4. An intelligent circuit breaker with angular displacement sensor according to claim 1, wherein: the driving cavity (28) is formed in the lower side of the inner wall of the circulating cavity (15), the second motor cavity (29) is formed in the lower side of the inner wall of the driving cavity (28), a second motor (30) is fixedly connected to the lower side of the inner wall of the second motor cavity (29), and the output end of the second motor (30) penetrates through the upper side of the inner wall of the second motor cavity (29) and extends to the lower side of the inner wall of the driving cavity (28).

5. An intelligent circuit breaker with angular displacement sensor according to claim 4, wherein: the output fixedly connected with second gear (31) of second motor (30), the equal meshing of both sides is connected with third gear (32) about second gear (31), two the equal fixedly connected with stirring rod (34) of inner wall of third gear (32), two the upside that stirring rod (34) all runs through the upside of driving chamber (28) inner wall extends to the downside of circulation chamber (15) inner wall and rotates with the upside of circulation chamber (15) inner wall and be connected, two the equal fixedly connected with a plurality of stirring leaf (35) of upside on stirring rod (34) surface, a plurality of thermovent (36) have been seted up to the upside of refrigeration chamber (16) inner wall.