CN215869044U

CN215869044U - High-voltage vacuum circuit breaker with heat dissipation function

Info

Publication number: CN215869044U
Application number: CN202122388623.9U
Authority: CN
Inventors: 周杰; 王小锋
Original assignee: Changzhou Senyuan Jiangnan Electric Appliance Co ltd
Current assignee: Changzhou Senyuan Jiangnan Electric Appliance Co ltd
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-18
Anticipated expiration: 2031-09-29

Abstract

The utility model relates to the technical field of vacuum circuit breakers, in particular to a high-voltage vacuum circuit breaker with a heat dissipation function, which comprises an installation box, a controller, a high-voltage vacuum switch, a temperature sensor, a water cooling mechanism and an air cooling mechanism, wherein the controller is fixedly arranged on one side outside the installation box, an installation cavity is arranged inside the installation box, the water cooling mechanism comprises a heat conduction seat and a water supply assembly, the heat conduction seat is fixedly arranged in the middle of the inner wall of the installation cavity, the high-voltage vacuum switch is fixedly arranged on the heat conduction seat, the water supply assembly is fixedly arranged on one side of the bottom of the inner wall of the installation cavity, the water supply assembly is fixedly inserted with the heat conduction seat, and the air cooling mechanism comprises a refrigeration assembly and an air blowing assembly. Safe high-efficient, greatly improved high-pressure vacuum circuit breaker's radiating efficiency.

Description

High-voltage vacuum circuit breaker with heat dissipation function

Technical Field

The utility model relates to the technical field of vacuum circuit breakers, in particular to a high-voltage vacuum circuit breaker with a heat dissipation function.

Background

The vacuum circuit breaker is named because the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are high vacuum, has the advantages of small volume, light weight, suitability for frequent operation and no need of maintenance for arc extinguishing, and is relatively popularized in power distribution networks. The vacuum circuit breaker is an indoor power distribution device in a 3-10 kV and 50Hz three-phase alternating-current system, can be used for protecting and controlling electrical equipment in industrial and mining enterprises, power plants and transformer substations, is particularly suitable for use places requiring no oil, less maintenance and frequent operation, and can be arranged in a middle cabinet, a double-layer cabinet and a fixed cabinet to be used for controlling and protecting high-voltage electrical equipment.

High-voltage vacuum circuit breaker is because long-time continuous operation work, and inside can produce a large amount of heats, is difficult for distributing away, and traditional vacuum circuit breaker radiating effect is not obvious, and part can install a fan heat dissipation mode very single, and then causes very easily that to soften the damage to the vacuum circuit breaker circuit, has reduced the life-span and has increased cost of maintenance, consequently is necessary to design a high-voltage vacuum circuit breaker who has the heat dissipation function.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-voltage vacuum circuit breaker with a heat dissipation function.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high-pressure vacuum circuit breaker with heat dissipation function, includes install bin, controller, high-pressure vacuum switch, temperature sensor, water cooling mechanism and air-cooled mechanism, the controller is fixed to be set up in the outside one side of install bin, the inside installation cavity that is equipped with of install bin, water cooling mechanism includes heat conduction seat and water supply assembly, heat conduction seat fixed set up in the middle of the installation intracavity wall, high-pressure vacuum switch is fixed to be set up on heat conduction seat, water supply assembly is fixed to be set up in installation intracavity wall bottom one side, and water supply assembly and the fixed grafting of heat conduction seat, air-cooled mechanism includes refrigeration subassembly and the subassembly of blowing, refrigeration subassembly is fixed to be set up in installation intracavity wall bottom opposite side, the subassembly of blowing is fixed to be set up in installation intracavity wall one side, and the subassembly of blowing and refrigeration subassembly fixed connection.

Preferably, one side of install bin is equipped with the shutter, one side and the articulated setting of install bin of shutter, and outside one side of shutter is equipped with the kerve, the both sides of install bin are equipped with air intake and air outlet respectively, fixed first ventilation net and the second ventilation net of being equipped with respectively in air intake and the air outlet.

Preferably, the top of the installation box is provided with a temperature sensor, and the temperature sensor is fixedly inserted into the installation cavity in an upright state.

Preferably, four cooling grooves are arranged in the heat conducting seat in a linear array manner, the four cooling grooves are communicated end to end, water inlets and water outlets of the four cooling grooves are located on the same side, and the water inlets are located right above the water outlets.

Preferably, the water supply assembly includes water storage tank, water pump, outlet pipe, inlet tube, back flow and flowmeter, the water storage tank is fixed to be set up on the installation intracavity wall and to be located under the high pressure vacuum switch, water storage tank top one side is fixed to be inserted and is equipped with the water receiving pipe, and the fixed level sensor that is equipped with of water storage tank top opposite side, level sensor extends to the bottom of water storage tank.

Preferably, the water pump is fixed to be set up in installation cavity inner wall bottom, the one end of outlet pipe is fixed to be inserted and is located bottom one side of water storage box and communicate to inside the water storage box, the other end of outlet pipe is fixed to be set up in the entrance point of water pump, the one end of inlet tube is fixed to be set up in the exit end of water pump, and the other end of inlet tube is fixed to be set up in the inlet port, the one end of back flow is fixed to be set up in the delivery port tip, and the other end of back flow is fixed to be set up in the water storage box top and communicate to inside the water storage box, the flowmeter is that the horizontality is fixed to be set up on the outlet pipe.

Preferably, the blowing assembly comprises a mounting seat and a fan, the mounting seat is fixedly arranged on one side of the inner wall of the mounting cavity, a mounting groove is formed in the middle of the mounting seat, and the fan is fixedly arranged in the mounting groove.

Preferably, the refrigeration assembly includes air compressor, safety cover, condenser and evaporimeter, air compressor fixed set up in installation intracavity wall bottom, the safety cover is fixed to be set up in installation intracavity bottom and to be located the air compressor side, the condenser is fixed to be set up in the safety cover, air compressor's exit end and the entrance point intercommunication of condenser, the evaporimeter is fixed to be set up consequently and in the mounting groove, the exit end of condenser and the entrance point intercommunication of evaporimeter, the exit end of evaporimeter and air compressor's entrance point intercommunication.

The utility model has the beneficial effects that:

1. firstly, when the temperature sensor at the top of the mounting box monitors that the temperature in the mounting cavity is overhigh, the temperature sensor transmits an electric signal to the controller, the controller immediately turns on a switch of the water pump, under the influence of the suction force of the water pump, cooling water in the water storage tank enters the water inlet pipe through the water outlet pipe and the water pump, when the cooling water passes through the flow meter, the flow meter can display the water inflow, then the cooling water enters the cooling tank along with the water outlet pipe through the water inlet, so that the cooling water absorbs the heat of the heat conducting seat, thereby absorbing heat of a high-pressure vacuum switch fixedly arranged on the heat conducting seat, achieving the effect of cooling, leading cooling water to flow into the water storage tank through the return pipe to achieve the purpose of circulation, arranging a water receiving pipe on one side of the top of the water storage tank, can change the inside cooling water of water storage box at any time, avoid long-time the use, the cooling effect of cooling water descends, and level sensor who is located the water receiving pipe side monitors the inside cooling water content of water storage box in real time.

2. After the controller starts air compressor, air compressor compresses inside low temperature low pressure gas into high temperature high pressure gas and gets into the condenser, the condenser becomes medium temperature high pressure liquid with high temperature high pressure gas condensation, be low temperature low pressure liquid and send into the evaporimeter through current choke valve throttle, thereby low temperature low pressure liquid absorbs heat in the evaporimeter and evaporates to low temperature low pressure steam, carry out the heat exchange with the hot-air of installation cavity one side, thereby the air of installation cavity one side realizes the cooling, the controller opens the fan switch this moment, the outside air of air intake gets into the installation cavity, the fan blows the cold air after the cooling through to high-pressure vacuum switch realizes high-efficient cooling, and discharge from the second vent net of air outlet, thereby reach endless purpose.

According to the utility model, the temperature sensor senses the temperature in the installation box, and then sends an electric signal to the controller, so that automatic circulation and efficient cooling can be realized, the operation is fast and convenient, safety and efficiency are high, and the heat dissipation efficiency of the high-voltage vacuum circuit breaker is greatly improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the interior of the mounting box of the present invention;

FIG. 3 is a schematic view of the present invention with the installation box disassembled;

FIG. 4 is a schematic perspective view of the high-voltage vacuum switch and the water cooling mechanism of the present invention;

FIG. 5 is a plan view of a heat conducting base and a high voltage vacuum switch of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;

FIG. 7 is a perspective view of the water supply assembly of the present invention;

FIG. 8 is a schematic perspective view of the air cooling mechanism of the present invention;

figure 9 is a disassembled schematic view of the blowing assembly of the present invention;

FIG. 10 is a perspective view of the refrigeration assembly of the present invention;

in the figure: the air cooling system comprises a mounting box 1, a mounting cavity 10, a protective door 11, a pull groove 110, an air inlet 12, a first ventilation net 120, an air outlet 13, a second ventilation net 130, a controller 2, a high-pressure vacuum switch 3, a temperature sensor 4, a water cooling mechanism 5, a heat conducting base 50, a cooling groove 500, a water inlet 501, a water outlet 502, a water supply assembly 51, a water storage tank 510, a water receiving pipe 5100, a liquid level sensor 5101, a water pump 511, a water outlet pipe 512, a water inlet pipe 513, a return pipe 514, a flow meter 515, an air cooling mechanism 6, a refrigeration assembly 60, an air compressor 600, a protective cover 601, a condenser 602, an evaporator 603, a blowing assembly 61, a mounting base 610, a mounting groove 6100 and a fan 611.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

Referring to fig. 1 to 2, the high-voltage vacuum circuit breaker with a heat dissipation function comprises an installation box 1, a controller 2, a high-voltage vacuum switch 3, a temperature sensor 4, a water cooling mechanism 5 and an air cooling mechanism 6, wherein the controller 2 is fixedly arranged at one side of the outer part of the installation box 1, an installation cavity 10 is arranged in the installation box 1, the water cooling mechanism 5 comprises a heat conduction seat 50 and a water supply assembly 51, the heat conduction seat 50 is fixedly arranged in the middle of the inner wall of the installation cavity 10, the high-voltage vacuum switch 3 is fixedly arranged on the heat conduction seat 50, the water supply assembly 51 is fixedly arranged at one side of the bottom of the inner wall of the installation cavity 10, and water supply assembly 51 and heat conduction seat 50 are fixed pegging graft, and air cooling mechanism 6 includes refrigeration subassembly 60 and blowing subassembly 61, and refrigeration subassembly 60 sets up in installation cavity 10 inner wall bottom opposite side fixedly, and blowing subassembly 61 sets up in installation cavity 10 inner wall one side fixedly, and blowing subassembly 61 and refrigeration subassembly 60 fixed connection.

Referring to fig. 3 one side of install bin 1 that shows is equipped with shutter 11, one side of shutter 11 is articulated with install bin 1 and sets up, and outside one side of shutter 11 is equipped with kerve 110, the both sides of install bin 1 are equipped with air intake 12 and air outlet 13 respectively, fixedly being equipped with first ventilation net 120 and second ventilation net 130 in air intake 12 and the air outlet 13 respectively, shutter 11 is conveniently opened to the kerve 110, shutter 11 is for observing and examining and repairing install bin 1 internals for being convenient, air intake 12 and air outlet 13 are for guaranteeing install bin 1 inside air circulation, first ventilation net 120 and second ventilation net 130 are for avoiding the foreign matter to get into installation cavity 10, cause the influence to the inside circuit.

Referring to fig. 1, the temperature sensor 4 is fixedly inserted into the installation cavity 10 in an upright state, when the temperature sensor 4 at the top of the installation box 1 monitors that the temperature inside the installation cavity 10 is too high, the temperature sensor 4 transmits an electric signal to the controller 2, and the controller 2 immediately turns on the switch of the water pump 511, so that the high-pressure vacuum switch 3 is subjected to heat dissipation operation.

Referring to fig. 4 to 6, four cooling tanks 500 are arranged in a linear array inside the heat conducting base 50, the four cooling tanks 500 are arranged end to end, water inlets 501 and water outlets 502 of the four cooling tanks 500 are located at the same side, the water inlets 501 are located right above the water outlets 502, the four cooling tanks 500 which are communicated end to end are filled with cooling water, so as to achieve the purpose of absorbing heat of the heat conducting base 50 and the high-pressure vacuum switch 3, and the water inlets 501 and the water outlets 502 are connected with a water inlet pipe 513 and a return pipe 514.

Referring to fig. 7, the water supply assembly 51 includes a water tank 510, a water pump 511, a water outlet pipe 512, a water inlet pipe 513, a return pipe 514 and a flowmeter 515, the water tank 510 is fixedly disposed on the inner wall of the installation cavity 10 and located under the high-pressure vacuum switch 3, one side of the top of the water tank 510 is fixedly inserted with a water receiving pipe 5100, the other side of the top of the water tank 510 is fixedly disposed with a liquid level sensor 5101, the liquid level sensor 5101 extends to the bottom of the water tank 510, the water pump 511 is fixedly disposed at the bottom of the inner wall of the installation cavity 10, one end of the water outlet pipe 512 is fixedly inserted at one side of the bottom of the water tank 510 and communicated to the inside of the water tank 510, the other end of the water outlet pipe 512 is fixedly disposed at the inlet end of the water pump 511, one end of the water inlet pipe 513 is fixedly disposed at the outlet end of the water pump 511, the other end of the water inlet pipe 513 is fixedly disposed in the water inlet 501, one end of the return pipe 514 is fixedly disposed at the end of the water outlet 502, the other end of the return pipe 514 is fixedly arranged at the top of the water storage tank 510 and communicated to the inside of the water storage tank 510, the flow meter 515 is fixedly arranged on the water outlet pipe 512 in a horizontal state, after the water pump 511 is started, the cooling water in the water storage tank 510 enters the water inlet pipe 513 through the water outlet pipe 512 and the water pump 511, when passing through the flow meter 515, the flow meter 515 can display the water inflow, then the cooling water enters the cooling tank 500 through the water inlet 501 along with the water outlet pipe 512, so that the cooling water absorbs the heat of the heat conducting seat 50, the flow meter 515 is used for observing the flow rate of the cooling water entering the cooling tank 500, and the liquid level sensor 5101 is used for conveniently observing the amount of the cooling water in the water storage tank 510 when the cooling water is replaced.

Referring to fig. 8 to 9, the blowing assembly 61 includes a mounting seat 610 and a fan 611, the mounting seat 610 is fixedly disposed on one side of an inner wall of the mounting cavity 10, a mounting groove 6100 is disposed in a middle portion of the mounting seat 610, the fan 611 is fixedly disposed in the mounting groove 6100, the mounting seat 610 provides a fixed mounting carrier for the fan 611, the liquid level evaporator 603 provides a fixed mounting carrier, and the mounting groove 6100 provides a mounting space for the fan 611.

Referring to fig. 10, the refrigeration assembly 60 includes an air compressor 600, a protective cover 601, a condenser 602, and an evaporator 603, the air compressor 600 is fixedly disposed at the bottom of the inner wall of the installation cavity 10, the protective cover 601 is fixedly disposed at the bottom of the installation cavity 10 and located beside the air compressor 600, the condenser 602 is fixedly disposed in the protective cover 601, an outlet end of the air compressor 600 is communicated with an inlet end of the condenser 602, the evaporator 603 is fixedly disposed in the installation cavity 6100, therefore, an outlet end of the condenser 602 is communicated with an inlet end of the evaporator 603, an outlet end of the evaporator 603 is communicated with an inlet end of the air compressor 600, after the controller 2 starts the air compressor 600, the air compressor 600 compresses the internal low-temperature and low-pressure gas into high-temperature and high-pressure gas, the condenser 602 condenses the high-temperature and high-pressure gas into medium-temperature and high-pressure liquid, throttled into low-temperature and low-pressure liquid by the existing throttle valve and sends the low-temperature and low-pressure liquid to the evaporator 603, thereby low temperature low pressure liquid absorbs heat in evaporimeter 603 and evaporates to low temperature low pressure steam, carries out the heat exchange with the hot-air of installation cavity 10 one side, thereby the air of installation cavity 10 one side realizes the cooling, controller 2 opens the fan 611 switch this moment, the outside air of air intake 12 gets into installation cavity 10, fan 611 blows the cold air after the cooling through to high-pressure vacuum switch 3 realizes high-efficient cooling, and discharge from the second ventilation net 130 of air outlet 13, thereby reach the endless purpose, protection cover 601 is for protecting condenser 602.

The working principle is as follows: when the temperature sensor 4 at the top of the installation box 1 monitors that the temperature inside the installation cavity 10 is overhigh, the temperature sensor 4 transmits an electric signal to the controller 2, the controller 2 immediately turns on a switch of a water pump 511, the cooling water inside the water storage box 510 enters a water inlet pipe 513 through a water outlet pipe 512 and the water pump 511 under the influence of the suction force of the water pump 511, when the cooling water passes through a flow meter 515, the flow meter 515 displays the water inflow, the cooling water enters the cooling tank 500 through a water inlet 501 along with the water outlet pipe 512, so that the cooling water absorbs the heat of the heat conducting seat 50 and absorbs the heat of a high-pressure vacuum switch 3 fixedly arranged on the heat conducting seat 50, the cooling effect is achieved, the cooling water flows into the water storage box 510 through a return pipe 514 to achieve the purpose of circulation, meanwhile, the controller 2 starts an air compressor 600, and the air compressor 600 compresses the low-temperature and low-pressure gas inside into high-temperature and high-pressure gas and enters a condenser 602, the condenser 602 condenses the high-temperature high-pressure gas into medium-temperature high-pressure liquid, the medium-temperature low-pressure liquid is throttled by the existing throttle valve and is sent into the evaporator 603, so that the low-temperature low-pressure liquid absorbs heat in the evaporator 603 and is evaporated into low-temperature low-pressure steam, the low-temperature low-pressure steam exchanges heat with hot air on one side of the installation cavity 10, the air on one side of the installation cavity 10 is cooled, at the moment, the controller 2 opens the fan 611 switch, the external air of the air inlet 12 enters the installation cavity 10, the fan 611 blows the cooled cold air to the high-pressure vacuum switch 3 to realize efficient cooling, and the cold air is discharged from the second ventilation network 130 of the air outlet 13, and the circulation purpose is achieved.

Claims

1. A high-voltage vacuum circuit breaker with a heat dissipation function comprises an installation box (1), a controller (2), a high-voltage vacuum switch (3), a temperature sensor (4), a water cooling mechanism (5) and an air cooling mechanism (6), and is characterized in that the controller (2) is fixedly arranged on one side of the outside of the installation box (1), an installation cavity (10) is arranged inside the installation box (1), the water cooling mechanism (5) comprises a heat conduction seat (50) and a water supply assembly (51), the heat conduction seat (50) is fixedly arranged in the middle of the inner wall of the installation cavity (10), the high-voltage vacuum switch (3) is fixedly arranged on the heat conduction seat (50), the water supply assembly (51) is fixedly arranged on one side of the bottom of the inner wall of the installation cavity (10), the water supply assembly (51) is fixedly connected with the heat conduction seat (50) in an inserting mode, the air cooling mechanism (6) comprises a refrigeration assembly (60) and an air blowing assembly (61), refrigeration subassembly (60) fixed set up in installation cavity (10) inner wall bottom opposite side, blow subassembly (61) fixed set up in installation cavity (10) inner wall one side, and blow subassembly (61) and refrigeration subassembly (60) fixed connection.

2. The high-voltage vacuum circuit breaker with the heat dissipation function according to claim 1, wherein a protective door (11) is disposed on one side of the installation box (1), one side of the protective door (11) is hinged to the installation box (1), a pull groove (110) is disposed on one side of the exterior of the protective door (11), an air inlet (12) and an air outlet (13) are disposed on two sides of the installation box (1), and a first ventilation net (120) and a second ventilation net (130) are respectively and fixedly disposed in the air inlet (12) and the air outlet (13).

3. The high-voltage vacuum circuit breaker with the heat dissipation function according to claim 2, wherein the temperature sensor (4) is fixedly inserted into the mounting cavity (10) in an upright state.

4. The high-voltage vacuum circuit breaker with the heat dissipation function according to claim 3, wherein four cooling grooves (500) are arranged inside the heat conducting base (50) in a linear array, the four cooling grooves (500) are arranged end to end, water inlets (501) and water outlets (502) of the four cooling grooves (500) are located at the same side, and the water inlets (501) are located right above the water outlets (502).

5. The high-voltage vacuum circuit breaker with the heat dissipation function according to claim 4, wherein the water supply assembly (51) comprises a water storage tank (510), a water pump (511), a water outlet pipe (512), a water inlet pipe (513), a return pipe (514) and a flow meter (515), the water storage tank (510) is fixedly arranged on the inner wall of the installation cavity (10) and is located right below the high-voltage vacuum switch (3), a water receiving pipe (5100) is fixedly inserted into one side of the top of the water storage tank (510), a liquid level sensor (5101) is fixedly arranged on the other side of the top of the water storage tank (510), and the liquid level sensor (5101) extends to the bottom of the water storage tank (510).

6. The high-voltage vacuum circuit breaker with heat dissipation function according to claim 5, the water pump (511) is fixedly arranged at the bottom of the inner wall of the mounting cavity (10), one end of the water outlet pipe (512) is fixedly inserted at one side of the bottom of the water storage tank (510) and communicated with the inside of the water storage tank (510), the other end of the water outlet pipe (512) is fixedly arranged at the inlet end of the water pump (511), one end of the water inlet pipe (513) is fixedly arranged at the outlet end of the water pump (511), the other end of the water inlet pipe (513) is fixedly arranged in the water inlet (501), one end of the return pipe (514) is fixedly arranged at the end part of the water outlet (502), the other end of the return pipe (514) is fixedly arranged at the top of the water storage tank (510) and communicated to the inside of the water storage tank (510), the flowmeter (515) is fixedly arranged on the water outlet pipe (512) in a horizontal state.

7. The high-voltage vacuum circuit breaker with the heat dissipation function according to claim 6, wherein the blowing assembly (61) comprises a mounting seat (610) and a fan (611), the mounting seat (610) is fixedly arranged on one side of the inner wall of the mounting cavity (10), a mounting groove (6100) is arranged in the middle of the mounting seat (610), and the fan (611) is fixedly arranged in the mounting groove (6100).

8. The high-voltage vacuum circuit breaker with heat dissipation function according to claim 7, the refrigeration assembly (60) comprises an air compressor (600), a protective cover (601), a condenser (602) and an evaporator (603), the air compressor (600) is fixedly arranged at the bottom of the inner wall of the mounting cavity (10), the protective cover (601) is fixedly arranged at the bottom of the mounting cavity (10) and is positioned beside the air compressor (600), the condenser (602) is fixedly arranged in the protective cover (601), the outlet end of the air compressor (600) is communicated with the inlet end of the condenser (602), the evaporator (603) is fixedly arranged in the mounting groove (6100), so that the outlet end of the condenser (602) is communicated with the inlet end of the evaporator (603), the outlet end of the evaporator (603) is communicated with the inlet end of the air compressor (600).