Heat dissipation device of medium-voltage vacuum circuit breaker
By designing a medium-voltage vacuum circuit breaker heat dissipation device including water-cooled frame, water tank, circulation pump, heat conduction fin, cold water pipe and cooling sleeve, the problem of simple heat dissipation method of medium-voltage vacuum circuit breaker is solved, and more efficient heat dissipation effect is achieved , ensure the normal operation and safety of the equipment.
Patent Information
- Application Number
- CN202323626205.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2033-12-29
AI Technical Summary
The medium-voltage vacuum circuit breaker is affected by high temperatures when used outdoors, resulting in huge heat generated inside the cabinet part. The existing heat dissipation method is relatively simple, making it difficult to effectively dissipate heat, forming safety hazards and affecting the normal operation of the equipment.
A medium-pressure vacuum circuit breaker heat dissipation device is designed, including a water-cooled frame, a water tank, a circulation pump, a heat conductor, a cold water pipe and a cooling sleeve. The cooling water is transported to the cold water pipe through a circulation pump. The cold water pipe comes into contact with the heat conductor, and the cooling heat is cooled. The cooling sleeve and refrigeration plate are further cooled down.
This device can more effectively dissipate heat generated, improve heat dissipation effect, avoid safety hazards caused by heat, and ensure the normal operation of the equipment.
Smart Images
Figure CN222462714U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medium-voltage vacuum circuit breakers, in particular to a heat dissipation device for a medium-voltage vacuum circuit breaker. Background Art
[0002] Medium voltage vacuum circuit breaker is a common power system protection device, widely used in medium and small power systems with AC 50Hz and rated voltage of 12kV to 40.5kV. It adopts vacuum switch technology and has the advantages of strong breaking capacity, long life, small size, no pollution and easy maintenance.
[0003] At present, medium-voltage vacuum circuit breakers are affected by high temperature weather when used outdoors, resulting in huge heat generated inside the cabinet. The existing medium-voltage vacuum circuit breakers have relatively simple heat dissipation methods and are difficult to effectively dissipate the generated heat. Such heat will cause the air to heat up and expand, forming certain safety hazards and affecting the normal operation of the equipment. Utility Model Content
[0004] The utility model aims to provide a medium voltage vacuum circuit breaker heat dissipation device to solve the problem that the current medium voltage vacuum circuit breaker heats the cabinet part in a relatively simple way, resulting in a low heat dissipation effect.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a medium-voltage vacuum circuit breaker heat dissipation device, comprising a circuit breaker body, a water-cooling frame is provided on the outer wall of the front end of the circuit breaker body, a water tank is provided on one side of the water-cooling frame, a circulating pump is installed outside the bottom end of the water tank, and a plurality of heat-conducting plates that are in contact with the outer wall of the circuit breaker body are evenly provided inside the water-cooling frame, a cold water pipe distributed in a circular shape is provided on the outside of the heat-conducting plate, two ends of the cold water pipe are respectively connected to the water outlet end of the circulating pump and one side of the top of the water tank, and a plurality of cooling jackets are installed outside the cold water pipe, and refrigeration plates are embedded on the outside of the cooling jacket.
[0006] Preferably, the cooling jacket is in an arc-shaped structure as a whole, and clamps matching the cold water pipe structure are symmetrically provided on the inner side of the cooling jacket.
[0007] Preferably, an engaging opening adapted to the refrigeration fin structure is provided in the middle of the outer side of the cooling sleeve, and the inner side of the refrigeration fin is fitted on the inner wall of the engaging opening.
[0008] Preferably, grooves are provided on the inner walls on both sides of the fitting opening, compression pads are provided in the recesses on the inner walls on both sides of the fitting opening, and a limiting piece is provided on the outer side of the compression pad.
[0009] Preferably, a heat conducting plate is embedded in the front end of the circuit breaker body on the side opposite to the water tank, and the upper and lower ends of the outer side of the heat conducting plate are provided with heat dissipation fins in an annular structure.
[0010] Preferably, the cooling jacket is evenly arranged on the cold water pipe, and a cooling cavity is provided inside the cooling jacket.
[0011] Compared with the prior art, the beneficial effect of the utility model is that the heat dissipation device for medium-voltage vacuum circuit breaker can dissipate the generated heat more effectively, improve the heat dissipation effect, and thus ensure the normal operation of the equipment. The device is provided with a water cooling frame and a water tank on the outer wall of the front end of the circuit breaker body, and the cooling water inside the water tank can be transported to the cold water pipe provided inside the water cooling frame through a circulating pump to form a circulating flow, and the water cooling frame can conduct the heat inside the circuit breaker body through a plurality of heat conducting sheets provided inside, so that the cold water pipe can cool the heat by contacting with the heat conducting sheet. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic structural diagram of a heat dissipation device for a medium voltage vacuum circuit breaker according to the utility model;
[0013] Figure 2 This is a schematic diagram of the connection structure between a cooling jacket and a cold water pipe of a medium-voltage vacuum circuit breaker heat dissipation device of the utility model;
[0014] Figure 3 The utility model is a schematic diagram of the outer structure of a cooling jacket of a heat dissipation device for a medium-voltage vacuum circuit breaker.
[0015] In the figure: 1. Circuit breaker body; 2. Water cooling frame; 3. Water tank; 4. Circulation pump; 5. Heat conducting sheet; 6. Cold water pipe; 7. Cooling jacket; 8. Refrigeration sheet; 9. Heat conducting plate; 10. Heat dissipating fin; 11. Clamp; 12. Fitting opening; 13. Compression pad; 14. Limiting sheet. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-3The utility model provides a technical solution: a heat dissipation device for a medium-voltage vacuum circuit breaker, comprising a circuit breaker body 1, a water-cooling frame 2 is arranged on the outer wall at the front end of the circuit breaker body 1, and the four corners of the water-cooling frame 2 can be fixed to the outer wall at the front end of the circuit breaker body 1 by bolt connection, a water tank 3 is arranged on one side of the water-cooling frame 2, cooling water is injected into the water tank 3, one side of the outer wall of the water tank 3 is welded and fixed to the outer wall of one side of the water-cooling frame 2, a circulating pump 4 is fixedly installed on the outside of the bottom end of the water tank 3 by a bracket, and a plurality of heat-conducting sheets 5 that are in contact with the outer wall of the circuit breaker body 1 are evenly arranged inside the water-cooling frame 2, and the upper and lower ends of the heat-conducting sheets 5 are connected to the upper and lower inner walls of the water-cooling frame 2 by screws, and the outer side of the heat-conducting sheets 5 is provided with a surrounding distribution The cold water pipe 6, the inner side of the cold water pipe 6 and the part corresponding to the heat conductive sheet 5 are all in contact, the two ends of the cold water pipe 6 are respectively connected to the water outlet end of the circulation pump 4 and one side of the top of the water tank 3, and a plurality of cooling sleeves 7 are detachably installed on the outside of the cold water pipe 6. The water cooling frame 2 of this structure can conduct heat to the heat generated inside the circuit breaker body 1 through a plurality of heat conductive sheets 5, and when the circulation pump 4 is started, the cooling water inside the water tank 3 can be transported to the inside of the cold water pipe 6 to form a circulation flow. The heat derived from the heat conductive sheet 5 can be cooled after contacting the cold water pipe 6. At the same time, the cooling sleeve 7 can also be evenly arranged on the outside of the cold water pipe 6 by injecting coolant inside, so as to cool down the cooling water circulating inside the cold water pipe 6. The cooling sleeve 7 has an arc-shaped structure as a whole, and a clamp 11 that matches the structure of the cold water pipe 6 is symmetrically welded and fixed on the inner side of the cooling sleeve 7. The clamp 11 is made of elastic metal sheet material. The cooling sleeve 7 of this structure can be clamped on the outer wall of the corresponding position of the cold water pipe 6 through the clamp 11, so as to be quickly installed and disassembled, and it is more convenient to use. A refrigeration sheet 8 is embedded in the outer side of the cooling sleeve 7, and an embedding that matches the structure of the refrigeration sheet 8 is provided in the middle of the outer side of the cooling sleeve 7. The inner side of the cooling sheet 8 is fitted on the inner wall of the fitting opening 12. The cooling sheet 8 of this structure can cool the coolant inside the cooling sleeve 7 by fitting inside the fitting opening 12, so as to prolong the continuous cooling effect of the coolant inside the cooling sleeve 7. The inner walls on the upper and lower sides of the fitting opening 12 are provided with grooves, and the recesses on the inner walls on the upper and lower sides of the fitting opening 12 are provided with compression pads 13. The compression pads 13 can be made of elastic sponge or elastic rubber material, and the outer side of the compression pads 13 is provided with a limiting piece 14, which extends into the interior of the fitting opening 12. When the cooling sheet 8 of this structure is embedded in the fitting opening 12, the two limiting pieces 14 can be squeezed. When the limiting piece 14 is subjected to force, a certain compression can be generated under the action of the compression pad 13.This enables the limit plate 14 to stably clamp the cooling plate 8 under the elastic force of the compression pad 13. A heat conducting plate 9 is embedded on the side opposite to the water tank 3 at the front end of the circuit breaker body 1, and the upper and lower ends of the outer side of the heat conducting plate 9 are provided with heat dissipation fins 10 of annular structure. The heat conducting plate 9 of this structure can also conduct the heat generated inside the circuit breaker body 1 and dissipate it through two heat dissipation fins 10, further improving the heat dissipation effect inside the circuit breaker body 1. The cooling jacket 7 is evenly arranged on the cold water pipe 6, and a cooling cavity is provided inside the cooling jacket 7. A liquid inlet and a liquid outlet are respectively provided on both sides of the cooling jacket 7. The cooling jacket 7 of this structure can conveniently add coolant to the cooling cavity and replace the coolant through the liquid inlet and the liquid outlet.
[0018] Working principle: When using the medium-voltage vacuum circuit breaker heat dissipation device, first inject a proper amount of coolant into several cooling sleeves 7 through the liquid inlet, and then fit the cooling plate 8 into the inside of the fitting port 12 to squeeze the two limiting plates 14. When the limiting plates 14 are subjected to force, they will produce a certain compression under the action of the compression pad 13, until the cooling plate 8 is completely fitted. The limiting plates 14 will stably clamp the cooling plate 8 under the elastic force of the compression pad 13, and then the cooling sleeves 7 are evenly clamped one by one on the outer wall of the corresponding position of the cold water pipe 6 through the clamp 11. When the circuit breaker body 1 is in use, a large amount of heat is generated inside. When the circuit breaker body 1 is turned on, the water cooling frame 2 can conduct heat to the heat generated inside the circuit breaker body 1 through a plurality of heat conducting sheets 5. At the same time, the circulating pump 4 is started. When the circulating pump 4 is started, the cooling water inside the water tank 3 will be transported to the inside of the cold water pipe 6 to form a surrounding flow. At this time, the heat conducted out of the heat conducting sheet 5 will be cooled to a certain extent after contacting the cold water pipe 6, and the coolant inside the cooling jacket 7 will cool the cooling water circulating in the cold water pipe 6, and the refrigeration sheet 8 will cool the coolant inside the cooling jacket 7. In this way, the heat generated inside the circuit breaker body 1 can be effectively dissipated, thereby completing a series of tasks.
[0019] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A medium voltage vacuum circuit breaker heat dissipation device, comprising a circuit breaker body (1), characterized in that: A water cooling frame (2) is provided on the outer wall of the front end of the circuit breaker body (1), a water tank (3) is provided on one side of the water cooling frame (2), a circulating pump (4) is installed outside the bottom end of the water tank (3), and a plurality of heat conducting plates (5) that are in contact with the outer wall of the circuit breaker body (1) are evenly arranged inside the water cooling frame (2), a cold water pipe (6) distributed in a circular shape is provided outside the heat conducting plates (5), two ends of the cold water pipe (6) are respectively connected to the water outlet end of the circulating pump (4) and one side of the top of the water tank (3), and a plurality of cooling sleeves (7) are installed outside the cold water pipe (6), and a refrigeration sheet (8) is embedded on the outside of the cooling sleeve (7).
2. A heat dissipation device for a medium voltage vacuum circuit breaker according to claim 1, characterized in that: The cooling jacket (7) is an arc-shaped structure as a whole, and a clamp (11) that matches the structure of the cold water pipe (6) is symmetrically arranged on the inner side of the cooling jacket (7).
3. A heat dissipation device for a medium voltage vacuum circuit breaker according to claim 1, characterized in that: An engaging opening (12) adapted to the structure of the refrigeration fin (8) is provided in the middle of the outer side of the cooling sleeve (7), and the inner side of the refrigeration fin (8) is fitted on the inner wall of the engaging opening (12).
4. A heat dissipation device for a medium voltage vacuum circuit breaker according to claim 3, characterized in that: The inner walls on both sides of the fitting opening (12) are provided with grooves, and compression pads (13) are provided in the recesses of the inner walls on both sides of the fitting opening (12), and a limiting piece (14) is provided on the outer side of the compression pad (13).
5. A heat dissipation device for a medium voltage vacuum circuit breaker according to claim 1, characterized in that: A heat conducting plate (9) is embedded on the front end of the circuit breaker body (1) on the side opposite to the water tank (3), and annular heat dissipation fins (10) are provided at both upper and lower ends of the outer side of the heat conducting plate (9).
6. A heat dissipation device for a medium voltage vacuum circuit breaker according to claim 1, characterized in that: The cooling jacket (7) is evenly arranged on the cold water pipe (6), and a cooling cavity is provided inside the cooling jacket (7).