CN117526126B - Switch board accuse temperature structure and switch board thereof - Google Patents
Switch board accuse temperature structure and switch board thereof Download PDFInfo
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- CN117526126B CN117526126B CN202311474927.4A CN202311474927A CN117526126B CN 117526126 B CN117526126 B CN 117526126B CN 202311474927 A CN202311474927 A CN 202311474927A CN 117526126 B CN117526126 B CN 117526126B
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- 230000007246 mechanism Effects 0.000 claims abstract description 72
- 230000017525 heat dissipation Effects 0.000 claims abstract description 54
- 238000000926 separation method Methods 0.000 claims description 36
- 230000000903 blocking effect Effects 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 19
- 230000008602 contraction Effects 0.000 claims 2
- 238000004378 air conditioning Methods 0.000 claims 1
- 238000005192 partition Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 23
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/24—Circuit arrangements for boards or switchyards
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of heat dissipation of circuit breakers, and in particular relates to a temperature control structure of a power distribution cabinet and the power distribution cabinet thereof, aiming at the problem that the circuit breakers in the power distribution cabinet cannot be cooled in a targeted manner, wherein the temperature control structure comprises a cabinet body, an air circuit breaker and a controller, and a wind source mechanism is arranged on the cabinet body; the invention discloses a power distribution cabinet, which comprises a cabinet body, an air circuit breaker, a main air channel, a wind source mechanism, a partition control mechanism, a first heat dissipation module, a first air channel pipeline, a first air circuit pipeline, a second air circuit pipeline, a first heat dissipation module and a second heat dissipation module.
Description
Technical Field
The invention relates to the technical field of circuit breaker heat dissipation, in particular to a temperature control structure of a power distribution cabinet and the power distribution cabinet.
Background
One of the main sources of heat in power distribution cabinets is circuit breakers, which, because of their need to withstand large current loads and to be circuit-breaking-protected, generate a certain amount of heat during operation.
Chinese patent: CN113394696a discloses an intelligent heat abstractor and a power distribution cabinet of a circuit breaker, comprising: the cabinet body is used for installing the circuit breaker, and a cooling system and a heat dissipation circuit system are arranged in the cabinet body; the cooling system comprises a cooling device, and the heat dissipation circuit system comprises a heat dissipation fan; when the environmental temperature of the circuit breaker is higher than a first temperature threshold, the heat dissipation fan and the cooling device are started, the cooling device releases cooling medium into the cabinet body to cool, the heat dissipation fan diffuses the cooling medium, and the circuit breaker is cooled. The effective cooling of the circuit breaker is realized.
But this equipment is to the cooling mode of circuit breaker to thereby make the temperature of circuit breaker drop to whole cabinet body, but the mode of cooling like this will make the process of cooling slower to also will produce higher energy consumption.
Disclosure of Invention
Therefore, the invention aims to provide a temperature control structure of a power distribution cabinet and the power distribution cabinet thereof, so as to solve the technical problem that a circuit breaker in the power distribution cabinet cannot be cooled in a targeted manner.
Based on the above object, the invention provides a temperature control structure of a power distribution cabinet, which comprises a cabinet body, an air circuit breaker and a controller, wherein a wind source mechanism for cooling the interior of the cabinet body is arranged on the cabinet body, an air outlet is formed above the cabinet body, and a first temperature sensor is arranged in the cabinet body;
The cabinet body is internally provided with a first air passage pipeline, the air circuit breaker is arranged outside the first air passage pipeline, the inner part of the first air passage pipeline is provided with a main air passage and an auxiliary air passage, an air inlet of the main air passage is connected with the air source mechanism through an allocation control pipeline, each auxiliary air passage at least corresponds to one air circuit breaker, the first air passage pipeline is provided with a separation control mechanism for controlling on-off between the main air passage and the auxiliary air passage, the first air passage pipeline is also provided with a first heat dissipation module for conducting heat of the air circuit breaker to the auxiliary air passage, and the inner part of the auxiliary air passage is provided with a second temperature sensor;
the first temperature sensor, the second temperature sensor, the wind source mechanism and the separation control mechanism are all connected with a controller, and the controller is connected with a power supply.
Preferably, the distribution control pipeline comprises a gas flow pipe, the gas flow pipe is divided into a gas inlet and two gas outlets, the gas inlet of the gas flow pipe is connected with the output end of the wind source mechanism, the two gas outlets of the gas flow pipe are respectively connected with the cabinet body and the main gas path channel, the two gas outlets of the gas flow pipe are respectively provided with a valve, and the controller is electrically connected with the two valves.
Preferably, the first heat dissipation module comprises a first heat pipe, the first heat pipe is arranged on the first air passage pipeline, two ends of the first heat pipe are respectively positioned in the interior and the exterior of the auxiliary air passage channel, two sides of the first heat pipe positioned outside the auxiliary air passage channel are respectively provided with a first heat conducting fin, and the first heat pipe positioned in the interior of the auxiliary air passage channel is provided with first fins in an arrayed manner.
Preferably, the second heat conducting fin is arranged on the outer side of the first heat conducting fin, and the elastic sheet is arranged between the first heat conducting fin and the second heat conducting fin.
Preferably, the separation control mechanism comprises a brake plate, the brake plate is positioned outside the main air passage, the air inlet and the air outlet of the auxiliary air passage are both provided with a first plugging plate, the first plugging plate penetrates through the main air passage through a connecting rod to be connected with the brake plate, a first elastic element is arranged on the connecting rod, the first elastic element drives the two first plugging plates to open the air inlet and the air outlet of the auxiliary air passage through the brake plate in a normal state, an electromagnet used for adsorbing the brake plate is arranged outside the main air passage, and the air inlet and the air outlet of the auxiliary air passage are closed through the brake plate in an electromagnet working state.
Preferably, the power distribution cabinet further comprises a second air channel pipeline, the second air channel pipeline is arranged on the first air channel pipeline, the second air channel pipeline is divided into a main line channel and a branch line channel, an air inlet of the main line channel is communicated with an air outlet of the first air channel pipeline, an air outlet of the main line channel is communicated with the outside of the cabinet body, each branch line channel corresponds to at least one air circuit breaker, the air inlet and the air outlet of the branch line channel are both communicated with the main line channel, a second blocking plate is arranged at an output end of the separation control mechanism, the second blocking plate opens the corresponding branch line channel when the separation control mechanism is in an operating state, so that air flows through the opened branch line channel when passing through the main line channel, suction pipes corresponding to the number of contacts of the air circuit breakers are arranged on the branch line channel, one end of each suction pipe is communicated with the branch line channel, one end of each branch line channel faces to the contacts of the air circuit breaker, air flow generates low pressure when passing through an intersection of the branch line channel and the suction pipes, and the outside air is sucked into the branch line channel.
Preferably, the power distribution cabinet further comprises a second air channel pipeline, the second air channel pipeline is respectively arranged on the first air channel pipeline, the second air channel pipeline is divided into a main line channel and a branch line channel, an air inlet of the main line channel is communicated with an air outlet of the first air channel pipeline, the air outlet of the main line channel is communicated with the outside of the cabinet body, each branch line channel corresponds to at least one air circuit breaker, the air inlet and the air outlet of the branch line channel are communicated with the main line channel, an output end of the separation control mechanism is provided with a second blocking plate, the second blocking plate opens the corresponding branch line channel when the separation control mechanism is in an operating state, so that air flows through the opened branch line channel when passing through the main line channel, the branch line channel is provided with telescopic heat dissipation mechanisms consistent with the number of contacts of the air circuit breakers, each telescopic heat dissipation mechanism comprises a thermal control driving element and a second heat dissipation module, when the temperature of the contacts of the air circuit breakers exceeds a threshold value, the input end of the thermal control driving the second heat dissipation module contacts with the contacts, and the output end of the second heat dissipation module is located inside the branch line channel.
Preferably, the thermal control type driving element comprises a cylinder body, a cavity is arranged in the cylinder body, a sliding sealing plate is arranged on the cylinder body, the driving plate is in sliding sealing connection with the cylinder body, the driving plate divides the cavity of the cylinder body into an elastic cavity and an air cavity, a second elastic element for pushing the driving plate is arranged in the elastic cavity, gas with a high thermal expansion coefficient is injected into the air cavity, a heat conducting wire is arranged on the cylinder body, one end of the heat conducting element is positioned in the air cavity, the other end of the heat conducting element is in contact with a contact of an air circuit breaker, and the sliding sealing plate is connected with the input end of the second heat dissipation module.
Preferably, the second heat dissipation module comprises a second heat pipe, a third heat conduction sheet is arranged on the second heat pipe and connected with the sliding sealing plate, a second fin is arranged on the second heat pipe, a holding cavity is arranged on the branch passage and intersected with the branch passage, the second fin is arranged in the holding cavity when the second heat dissipation module is in a non-working state, the second fin is arranged in the branch passage when the second heat dissipation module is in a working state, a sliding tube is further arranged on the branch passage, one end of the sliding tube is communicated with the inside of the branch passage, the other end of the sliding tube is communicated with the outside and faces to a contact of the air circuit breaker, and a sealing plate is further arranged on the second heat pipe and used for blocking the communication between the branch passage and the opening end of the sliding tube.
Preferably, a power distribution cabinet comprises the temperature control structure.
The invention has the beneficial effects that:
According to the invention, a mode of distinguishing cooling the inside of the cabinet body of the power distribution cabinet from the air circuit breaker is adopted, when the inside of the cabinet body reaches the upper limit threshold value, the inside of the cabinet body is cooled through the air source mechanism, after the air circuit breaker reaches the upper limit threshold value and is kept for a certain time, the output pipeline of the air source mechanism is adjusted, and the air current is introduced into the first air path pipeline to specifically cool the air circuit breaker exceeding the upper limit threshold value, so that the main heating source in the power distribution cabinet is cooled, and the cooling time is shortened.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the invention and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is a schematic perspective view of a first air duct, a separation control mechanism and a first heat dissipating module according to the present invention;
FIG. 5 is a front view of a first air duct, a separation control mechanism, and a first heat dissipating module of the present invention;
FIG. 6 is a cross-sectional view taken in the direction A-A of FIG. 5;
FIG. 7 is a schematic view of the internal structure of the distribution control pipe of the present invention;
FIG. 8 is a schematic perspective view of a first heat dissipating module according to the present invention;
FIG. 9 is a schematic diagram illustrating a non-operating state of the first air duct, the separation control mechanism, and the first heat dissipating module according to the present invention;
FIG. 10 is a schematic view illustrating the operation of the first air duct, the separation control mechanism and the first heat dissipating module according to the present invention;
FIG. 11 is a schematic perspective view of a first air path pipeline, a separation control mechanism, a first heat dissipation module and a second air path pipeline according to the present invention;
FIG. 12 is a top view of a first air path conduit, a separation control mechanism, a first heat dissipating module, and a second air path conduit according to the present invention;
FIG. 13 is a schematic view of the internal structure of the branch feeder channel and suction tube of the present invention;
FIG. 14 is a schematic view of the internal structure of the separation control mechanism and the second air path duct of the present invention;
FIG. 15 is a top view of a first air path conduit, a separation control mechanism, a first heat dissipating module, a second air path conduit, and a telescoping heat dissipating mechanism according to the present invention;
FIG. 16 is a front view of the first air path conduit, the separation control mechanism, the first heat dissipating module, the second air path conduit, and the telescoping heat dissipating mechanism;
FIG. 17 is a B-B sectional view of FIG. 16;
FIG. 18 is a schematic perspective view of a telescopic heat dissipation mechanism;
FIG. 19 is an enlarged view at C of FIG. 17;
fig. 20 is a schematic diagram of the internal structure of the thermally controlled driving element.
The reference numerals in the figures are:
1-a cabinet body;
2-air circuit breaker; 2 a-contacts;
3-a wind source mechanism;
4-a distribution control pipe; 4 a-a gas flow tube; 4 b-valve;
5-a first gas path pipeline; 5 a-a main gas path channel; 5 b-a secondary air path channel; 5 c-a second temperature sensor; 5c 1-a temperature control switch;
6-a separation control mechanism; 6 a-a brake plate; 6 b-a first plugging plate; 6 c-a first elastic element; 6 d-an electromagnet; 6 e-a second closure plate;
7-a first heat dissipation module; 7 a-a first heat pipe; 7 b-a first heat conductive sheet; 7 c-a first fin; 7 d-shrapnel; 7 e-a second heat conductive sheet;
8-a second gas path pipeline; 8 a-main line path; 8 b-branch paths; 8 c-suction tube; 8 d-a receiving cavity; 8 e-sliding tube;
9-a telescopic heat dissipation mechanism; 9 a-a thermally controlled drive element; 9a 1-cylinder; 9a 2-sliding seal plates; 9a 3-drive plate; 9a 4-a second elastic element; 9a 5-a heat conductive member; 9 b-a second heat dissipating module; 9b 1-a second heat pipe; 9b 2-a third heat conductive sheet; 9b 3-second fins; 9b 4-sealing plate.
Detailed Description
The present invention will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present invention more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Because the mode time through thereby cooling down the whole cabinet body 1 makes the temperature of circuit breaker descend longer, consequently in order to solve the technical problem that can't carry out the pertinence cooling down to the circuit breaker in the switch board, as shown in fig. 1 through 6, provide following preferred technical scheme:
The utility model provides a switch board accuse temperature structure, includes cabinet body 1, air circuit breaker 2 and controller, and the below of cabinet body 1 is provided with the wind regime mechanism 3 that is used for carrying out the cooling to cabinet body 1 inside, and wind regime mechanism 3 is the fan but not limited to this, and the air outlet has been seted up to the top of cabinet body 1, and the air outlet is in the back of cabinet body 1, and the inside of cabinet body 1 is provided with first temperature sensor, first temperature sensor is not shown in the picture;
The inside of the cabinet body 1 is provided with a first air passage pipeline 5, a plurality of air circuit breakers 2 are arranged outside the first air passage pipeline 5, the inside of the first air passage pipeline 5 is provided with a main air passage 5a and auxiliary air passage 5b, the air inlet of the main air passage 5a is connected with the air source mechanism 3 through a distribution control pipeline 4, a plurality of auxiliary air passage 5b are arranged, each auxiliary air passage 5b corresponds to two air circuit breakers 2, the first air passage pipeline 5 is provided with a separation control mechanism 6 for controlling the on-off of the main air passage 5a and the auxiliary air passage 5b, a first heat dissipation module 7 is arranged between every two air circuit breakers 2, the input end of the first heat dissipation module 7 is in contact with the air circuit breakers 2, the output end of the first heat dissipation module 7 is positioned in the corresponding auxiliary air passage 5b, and the inside of the auxiliary air passage 5b is provided with a second temperature sensor 5c;
the first temperature sensor, the second temperature sensor 5c, the wind source mechanism 3 and the separation control mechanism 6 are all connected with a controller, and the controller is connected with a power supply.
Specifically, in the running process of the power distribution cabinet, a plurality of components capable of generating heat exist in the power distribution cabinet, taking a low-voltage power distribution cabinet as an example, wherein a circuit breaker, a contactor, a resistor, a power transformer, a frequency converter, a capacitor, a controller and a circuit board are all components capable of generating heat, the design temperature of the general power distribution cabinet is 40 ℃, the maximum allowable temperature is 55 ℃, the temperature in the cabinet body 1 is taken as the upper limit threshold value in the cabinet body 1, the temperature in the cabinet body 1 is detected in real time through a first temperature sensor and a signal is sent to the controller, when the temperature in the cabinet body 1 exceeds 55 ℃, the controller detects that the temperature in the cabinet body 1 exceeds the preset threshold value, then controls the wind source mechanism 3 to start working, and the air source mechanism 3 guides external air into the cabinet body 1 to accelerate the air flow, so that the hot air in the cabinet body 1 can be more rapidly discharged through an air outlet to achieve the purpose of radiating the cabinet body 1;
The first heat dissipation module 7 bears the effect of guiding the temperature generated by the air circuit breaker 2 into the interior of the auxiliary air channel 5b, the second temperature sensor 5C in the interior of the auxiliary air channel 5b detects the internal temperature of the auxiliary air channel 5b in real time, the normal operation temperature of the air circuit breaker 2 body is usually between 30 ℃ and 70 ℃, the second temperature sensor 5C in any auxiliary air channel 5b detects the air circuit breaker 2, the temperature exceeds 70 ℃ and when the temperature of the whole interior of the cabinet body 1 is reduced for a certain time, the controller can simultaneously control the distribution control pipeline and the separation control mechanism 6, the distribution control pipeline 4 connects the air source mechanism 3 with the main air channel 5a of the first air channel 5 and disconnects the communication with the interior of the cabinet body 1, the separation control mechanism 6 is communicated with the main air channel 5a, at the moment, the air source mechanism 3 directly injects external air into the interior of the main air channel 5a, the air is in the main air channel 5a, the air channel 5a is not wasted, the air is correspondingly cooled down to the air channel 5b, and the air can not be cooled down by the air source mechanism 6, and the air can be cooled down to the air channel 5a more than the air channel 5b, and the heat dissipation process can be accelerated by the air channel 5b, and the heat dissipation process can be greatly conducted by the air channel 5, and the air channel can be cooled down by the air channel and the air channel 5, and the air can and the temperature can the temperature down by the temperature is cooled down by the air.
Further, based on the first embodiment, as shown in fig. 7 to 10:
The distribution control pipeline 4 comprises an air flow pipe 4a, the air flow pipe 4a is divided into an air inlet and two air outlets, the air inlet of the air flow pipe 4a is connected with the output end of the air source mechanism 3, the two air outlets of the air flow pipe 4a are respectively connected with the cabinet body 1 and the main air path channel 5a, the two air outlets of the air flow pipe 4a are respectively provided with a valve 4b, the valve 4b is an electromagnetic valve but not limited to the electromagnetic valve, the controller is electrically connected with the two valves 4b, and the air flow direction of the air source mechanism 3 is adjusted by controlling the on-off of the two air outlets of the air flow pipe 4 a;
The first heat dissipation module 7 includes a first heat pipe 7a, where the first heat pipe 7a is a mature prior art heat pipe, so that details are not described herein, the first heat pipe 7a is disposed on the first air path pipe 5, two ends of the first heat pipe 7a are respectively located inside and outside the auxiliary air path channel 5b, the first heat pipe 7a located outside the auxiliary air path channel 5b is specifically located between the two air circuit breakers 2, two sides of the first heat pipe 7a located outside the auxiliary air path channel 5b are respectively provided with a first heat conducting fin 7b, and the first heat pipe 7a located inside the auxiliary air path channel 5b is arranged with a first fin 7c;
the second heat conducting fin 7e is arranged on the outer side of the first heat conducting fin 7b, the elastic piece 7d is arranged between the first heat conducting fin 7b and the second heat conducting fin 7e, the elastic piece 7d has excellent heat conducting performance and elastic deformation capability, and the elastic piece 7d is made of copper materials but is not limited to the copper materials;
the first and second heat conductive sheets 7b and 7e are both copper materials but are not limited thereto;
The separation control mechanism 6 comprises a brake plate 6a, the brake plate 6a is positioned outside the main air channel 5a, the air inlet and the air outlet of the auxiliary air channel 5b are both provided with a first blocking plate 6b, the first blocking plate 6b penetrates through the main air channel 5a through a connecting rod to be connected with the brake plate 6a, a first elastic element 6c is arranged on the connecting rod, the first elastic element 6c is a spring but not limited to the spring, two ends of the first elastic element 6c respectively prop against the brake plate 6a and the outside of the main air channel 5a, the first elastic element 6c drives the two first blocking plates 6b to open the air inlet and the air outlet of the auxiliary air channel 5b through the brake plate 6a in a normal state, an electromagnet 6d for adsorbing the brake plate 6a is arranged outside the main air channel 5a, the surface of the brake plate 6a close to the electromagnet 6d is made of iron material, and the two first blocking plates 6b are driven to close the air inlet and the air outlet of the auxiliary air channel 5b through the brake plate 6a in a driving state when the electromagnet 6d is in a working state.
Specifically, the second heat conducting fin 7e is arranged on the outer surface of the first heat conducting fin 7b through the elastic piece 7d, and aims to be in close contact with the surface of the air circuit breaker 2 under the pushing action of the elastic piece 7d, and when the heat generated on the air circuit breaker 2 sequentially passes through the second heat conducting fin 7e, the elastic piece 7d, the first heat conducting fin 7b and the first heat pipe 7a, the heat emitted by the air circuit breaker 2 is absorbed and transferred to the first fin 7C through the heat conduction performance of the first heat pipe 7a, the air temperature of the auxiliary air channel 5b corresponding to the first fin 7C is increased, the second temperature sensor 5C in the auxiliary air channel 5b detects the temperature in the auxiliary air channel 5b, and when the temperature exceeds 70 ℃ and the whole inside of the cabinet body 1 is cooled for a certain time, the controller simultaneously controls the distribution control pipeline and the separation control mechanism 6, on the one hand, the controller closes the valve 4b communicated with the inside of the cabinet body 1, and simultaneously opens the valve 4b communicated with the main air source mechanism 3 and the main channel 5a, and the electromagnet 6b is in a normally closed state through the corresponding air channel 6b, and the first air channel 6b is blocked by the first air channel 6b, and the corresponding air channel 6b is blocked by the first air channel 6b, and the temperature in a blocking mode is forced by the second temperature sensor 5b;
the air passing through the auxiliary air passage 5b takes away the heat dissipating the first fins 7c of the first heat dissipating module 7, thereby cooling the first heat pipe 7a, enabling the heat exchange inside the first heat pipe 7a to circulate, and further achieving the effect of cooling the air circuit breaker 2.
Since the main heat generating source in the air circuit breaker 2 is the contact 2a connected with the line, for the purpose of achieving targeted cooling of the contact 2a of the air circuit breaker 2, as shown in fig. 11 to 14, it is substantially the same as the first embodiment, further:
The temperature control structure of the power distribution cabinet further comprises a second air channel pipeline 8, the second air channel pipeline 8 is respectively arranged on the upper side and the lower side of the first air channel pipeline 5, the second air channel pipeline 8 is divided into a main line channel 8a and a branch line channel 8b, an air inlet of the main line channel 8a is communicated with an air outlet of the first air channel pipeline 5, an air outlet of the main line channel 8a is communicated with the outside of the cabinet body 1, a plurality of branch line channels 8b are arranged, each branch line channel 8b corresponds to two air circuit breakers 2, an air inlet and an air outlet of each branch line channel 8b are communicated with the main line channel 8a, a second blocking plate 6e is arranged at an output end of the separation control mechanism 6, the second blocking plate 6e opens the corresponding branch line channel 8b when the separation control mechanism 6 is in an operating state, so that air flows through the opened branch line channel 8b when passing through the main line channel 8a, suction pipes 8c corresponding to the number of contacts 2a of the air circuit breakers are opened, one end of the branch line channel 8b is communicated with the branch line channel 8b, one end of each branch line channel 8b faces the two air circuit breakers 2a, the air flow rate of the contact 2a side of the suction pipe 8b is reduced, and the air flow rate of the air flow is reduced to the outside the branch line channel 8b when the suction channel 8b is reduced by adopting a low-pressure air flow channel 8c, and the specific flow channel is reduced to the outside when the suction channel 8c is in the air flow channel is in the low-pressure section.
Specifically, the separation control mechanism 6 will drive the second blocking plate 6e to work along with it in the working process, that is, after the separation control mechanism 6 opens the secondary air channel 5b corresponding to the heat generating air circuit breaker 2, simultaneously opens the branch channel 8b through the second blocking plate 6e, so as to realize the communication between the branch channel 8b and the main channel 8a, the air flow passing through the first air channel 5 enters the main channel 8a of the second air channel 8, enters the corresponding branch channel 8b in the process of following the main channel 8a, and when the air flow flows back to the main channel 8a through the branch channel 8b, the pipe diameter is reduced through the venturi effect, and the air flow velocity is increased when the air flow passes through the intersection of the suction pipe 8c and the branch channel 8b, so that the air flow velocity is generated, and the air outside the suction pipe 8c is sucked under low pressure, and the air inlet of the suction pipe 8c is directly directed towards the contact 2a of the air circuit breaker 2, so that the air around the contact 2a is directly sucked by the suction pipe 8c, and the contact 2a is directly cooled.
Since there is a case where the temperature of the contacts 2a is not uniform in one circuit breaker, some of the contacts 2a may be in a normal temperature range, and other of the contacts 2a may be too high, for the purpose of achieving targeted cooling of the contacts 2a where high temperature occurs in the air circuit breaker 2, as shown in fig. 11 and fig. 14 to 20, it is further that, as in the second embodiment, substantially the same:
The temperature control structure of the power distribution cabinet further comprises a second air channel pipeline 8, the second air channel pipeline 8 is respectively arranged on the upper side and the lower side of the first air channel pipeline 5, the second air channel pipeline 8 is divided into a main line channel 8a and a branch line channel 8b, an air inlet of the main line channel 8a is communicated with an air outlet of the first air channel pipeline 5, an air outlet of the main line channel 8a is communicated with the outside of the cabinet body 1, a plurality of branch line channels 8b are arranged, each branch line channel 8b corresponds to two air circuit breakers 2, an air inlet and an air outlet of each branch line channel 8b are communicated with the main line channel 8a, a second blocking plate 6e is arranged at an output end of the separation control mechanism 6, the second blocking plate 6e opens the corresponding branch line channel 8b when the separation control mechanism 6 is in an operating state, so that air flows through the opened branch line channel 8b when passing through the main line channel 8a, a plurality of telescopic heat dissipation mechanisms 9 are arranged on the branch line channel 8b, the number of the telescopic heat dissipation mechanisms 9 is consistent with the number of contacts 2a of the corresponding air circuit breakers 2, each telescopic heat dissipation mechanism 9 comprises a heat control drive element 9a and a heat dissipation element, when the heat dissipation element 2b is in the heat dissipation element is in contact with the second contact with the inner contact point 2b of the second heat dissipation element 2 b;
The thermal control type driving element 9a comprises a cylinder body 9a1, a cavity is arranged in the cylinder body 9a1, a sliding sealing plate 9a2 is arranged on the cylinder body 9a1, a driving plate 9a3 is connected with the cylinder body 9a1 in a sliding sealing mode, the driving plate 9a3 divides the cavity of the cylinder body 9a1 into an elastic cavity and a gas cavity, a second elastic element 9a4 used for pushing the driving plate 9a3 is arranged in the elastic cavity, the second elastic element 9a4 is a spring but not limited to the spring, gas with a high thermal expansion coefficient is injected into the gas cavity, particularly helium but not limited to the spring, a heat conducting wire is arranged on the cylinder body 9a1, one end of a heat conducting piece 9a5 is positioned in the gas cavity, the other end of the heat conducting piece 9a5 is in contact with a contact point 2a of the air circuit breaker 2, and the sliding sealing plate 9a2 is connected with an input end of a second heat dissipation module 9 b;
The second heat dissipation module 9b includes a second heat pipe 9b1, a third heat conducting fin 9b2 is disposed on the second heat pipe 9b1, the third heat conducting fin 9b2 is connected with a sliding seal plate 9a2, a second fin 9b3 is disposed on the second heat pipe 9b1 in an aligned manner, accommodating cavities 8d corresponding to the number of the second heat dissipation modules 9b are disposed on the branch line path 8b, the accommodating cavities 8d intersect the branch line path 8b, the second fin 9b3 is disposed in the accommodating cavities 8d, sliding tubes 8e corresponding to the number of the second heat dissipation modules 9b are disposed on the branch line path 8b, one end of each sliding tube 8e is communicated with the inside of the corresponding branch line path 8b, the other end of each sliding tube 8e is communicated with the outside and faces the contact 2a of the air circuit breaker 2, a sealing plate 9b4 is disposed on the second heat pipe 9b1, and the sealing plate 9b4 is used for blocking the communication between the branch line path 8b and the opening end of the sliding tube 8 e.
Specifically, in the closed state of the air circuit breaker 2, the temperature of the contact 2a is typically between 70 ℃ and 150 ℃, so that when the temperature of the contact 2a of the air circuit breaker 2 reaches 150 ℃, the outer surface of the air circuit breaker 2 will also reach more than 70 ℃, before the heat dissipation process of the outer surface of the air circuit breaker 2 through the first heat dissipation module 7, the heat control driving element 9a will also control the second heat dissipation module 9b according to the temperature condition of the single contact 2a, the heat conducting element 9a5 conducts the temperature of the contact 2a of the air circuit breaker 2 to the inside of the air cavity of the cavity, the expansion gas inside the air cavity is exemplified by hydrogen, but not limited thereto, when the hydrogen is heated, the volume thereof increases with the rise of the temperature; according to the law of thermal expansion, there is a linear relationship between the volume of the gas and the temperature, that is, when the temperature rises, the volume of the gas will also correspondingly increase, and the expansion driving force generated when the heated temperature reaches 70 ℃, will push the driving plate 9a3 to overcome the pretightening force of the second elastic element 9a4, when the temperature of a certain contact point 2a of the air circuit breaker 2 exceeds 150 ℃, the movement of the driving plate 9a3 will drive the third heat conducting piece 9b2 to complete the contact with the contact point 2a on the air circuit breaker 2 through the sliding sealing plate 9a2, the heat generated on the contact point 2a sequentially passes through the third heat conducting piece 9b2 and the second heat pipe 9b1, the heat of the contact point 2a is absorbed and transferred to the second fin 9b3 through the heat conduction performance of the second heat pipe 9b1, at this time, the second fin 9b3 will be located inside the branch line passage 8b, the air flow after passing through the first air circuit pipe 5 enters the main line 8a of the corresponding branch line 8b in the process along the main line 8a, the heat is carried away from the air circuit breaker 2b through the branch line 8a, and the heat generated in the process of the air circuit breaker 2 is cooled down.
The application also provides a power distribution cabinet which comprises the temperature control structure.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the invention (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the invention, the steps may be implemented in any order and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
The present invention is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a switch board accuse temperature structure, includes cabinet body (1), air circuit breaker (2) and controller, is provided with on the cabinet body (1) and is used for carrying out wind regime mechanism (3) of cooling to cabinet body (1) inside, and the air outlet has been seted up to the top of cabinet body (1), and the inside of cabinet body (1) is provided with first temperature sensor;
The intelligent air-conditioning cabinet is characterized in that a first air passage pipeline (5) is arranged in the cabinet body (1), an air circuit breaker (2) is arranged outside the first air passage pipeline (5), the interior of the first air passage pipeline (5) is divided into a main air passage (5 a) and a plurality of auxiliary air passage channels (5 b), an air inlet of the main air passage channel (5 a) is connected with an air source mechanism (3) through a distribution control pipeline (4), each auxiliary air passage channel (5 b) at least corresponds to one air circuit breaker (2), a separation control mechanism (6) for controlling on-off between the main air passage channel (5 a) and the auxiliary air passage channel (5 b) is arranged on the first air passage pipeline (5), a first heat dissipation module (7) for conducting heat of the air circuit breaker (2) to the auxiliary air passage channel (5 b) is further arranged on the first air passage pipeline (5), and a second temperature sensor (5 c) is arranged inside the auxiliary air passage channel (5 b);
the first temperature sensor, the second temperature sensor (5 c), the wind source mechanism (3) and the separation control mechanism (6) are all electrically connected with a controller, and the controller is electrically connected with a power supply.
2. The temperature control structure of a power distribution cabinet according to claim 1, wherein the distribution control pipeline (4) comprises an air flow pipe (4 a), the air flow pipe (4 a) is divided into an air inlet and two air outlets, the air inlet of the air flow pipe (4 a) is connected with the output end of the air source mechanism (3), the two air outlets of the air flow pipe (4 a) are respectively connected with the cabinet body (1) and the main air passage (5 a), the two air outlets of the air flow pipe (4 a) are respectively provided with a valve (4 b), and the controller is electrically connected with the two valves (4 b).
3. The temperature control structure of a power distribution cabinet according to claim 2, wherein the first heat dissipation module (7) comprises a first heat pipe (7 a), the first heat pipe (7 a) is arranged on the first air passage pipeline (5), two ends of the first heat pipe (7 a) are respectively positioned in the interior and the exterior of the auxiliary air passage pipeline (5 b), two sides of the first heat pipe (7 a) positioned outside the auxiliary air passage pipeline (5 b) are respectively provided with a first heat conducting fin (7 b), and first fins (7 c) are arranged on the first heat pipe (7 a) positioned in the auxiliary air passage pipeline (5 b).
4. A temperature control structure of a power distribution cabinet according to claim 3, characterized in that the outer side of the first heat conducting fin (7 b) is provided with a second heat conducting fin (7 e), and an elastic sheet (7 d) is arranged between the first heat conducting fin (7 b) and the second heat conducting fin (7 e).
5. The temperature control structure of a power distribution cabinet according to claim 2, wherein the separation control mechanism (6) comprises a brake plate (6 a), the brake plate (6 a) is located outside a main air passage (5 a), the air inlet and the air outlet of a sub air passage (5 b) are both provided with a first blocking plate (6 b), the first blocking plate (6 b) penetrates through the main air passage (5 a) through a connecting rod to be connected with the brake plate (6 a), a first elastic element (6 c) is arranged on the connecting rod, the first elastic element (6 c) drives the two first blocking plates (6 b) to open the air inlet and the air outlet of the sub air passage (5 b) through the brake plate (6 a) in a normal state, an electromagnet (6 d) used for adsorbing the brake plate (6 a) is arranged outside the main air passage (5 a), and the electromagnet (6 d) drives the first blocking plate (6 b) to close the air inlet and the air outlet of the sub air passage (5 b) through the brake plate (6 a) in an operating state.
6. The temperature control structure of a power distribution cabinet according to claim 1, wherein the power distribution cabinet further comprises a second air path pipeline (8), the second air path pipeline (8) is arranged on the first air path pipeline (5), the second air path pipeline (8) is divided into a main line passage (8 a) and a branch line passage (8 b), an air inlet of the main line passage (8 a) is communicated with an air outlet of the first air path pipeline (5), an air outlet of the main line passage (8 a) is communicated with the outside of the cabinet body (1), each branch line passage (8 b) corresponds to at least one air circuit breaker (2), an air inlet and an air outlet of the branch line passage (8 b) are communicated with the main line passage (8 a), an output end of the separation control mechanism (6) is provided with a second blocking plate (6 e), the second blocking plate (6 e) opens the corresponding branch line passage (8 b) when the separation control mechanism (6) is in an operating state, the air flows through the opened branch line passage (8 b), the branch line passage (8 b) is provided with a contact point (2 c) corresponding to the air circuit breaker (2 a) on one end of the suction pipe (2 c) of the suction pipe (2), the air flow will create a low pressure in the region of the branch passage (8 b) as it passes the intersection of the branch passage (8 b) and the suction tube (8 c), the suction tube (8 c) drawing outside air into the interior of the branch passage (8 b).
7. The temperature control structure of a power distribution cabinet according to claim 1, wherein the power distribution cabinet further comprises a second air channel pipeline (8), the second air channel pipeline (8) is respectively arranged on the first air channel pipeline (5), the second air channel pipeline (8) is divided into a main line passage (8 a) and a branch line passage (8 b), an air inlet of the main line passage (8 a) is communicated with an air outlet of the first air channel pipeline (5), an air outlet of the main line passage (8 a) is communicated with the outside of the cabinet body (1), each branch line passage (8 b) corresponds to at least one air circuit breaker (2), an air inlet and an air outlet of the branch line passage (8 b) are communicated with the main line passage (8 a), an output end of the separation control mechanism (6) is provided with a second blocking plate (6 e), the second blocking plate (6 e) opens the corresponding branch line passage (8 b) when the separation control mechanism (6) is in a working state, so that air flows through the opened branch line passage (8 b), the branch line passage (8 b) is provided with a number of expansion and contraction control components (9) consistent with the number of the air circuit breakers (2) and the expansion and contraction control mechanism (9 b) are arranged on the branch line passage (8 b), when the temperature of a contact (2 a) of the air circuit breaker (2) exceeds a threshold value, the heat control driving element (9 a) drives the input end of the second heat dissipation module (9 b) to be in contact with the contact (2 a), and the output end of the second heat dissipation module (9 b) is positioned in the branch line passage (8 b).
8. The temperature control structure of a power distribution cabinet according to claim 7, wherein the thermal control driving element (9 a) comprises a cylinder body (9 a 1), a cavity is arranged in the cylinder body (9 a 1), a sliding sealing plate (9 a 2) is arranged on the cylinder body (9 a 1), the driving plate (9 a 3) is in sliding sealing connection with the cylinder body (9 a 1), the driving plate (9 a 3) divides the cavity of the cylinder body (9 a 1) into an elastic cavity and an air cavity, a second elastic element (9 a 4) for pushing the driving plate (9 a 3) is arranged in the elastic cavity, gas with a high thermal expansion coefficient is injected into the air cavity, a heat conducting wire is arranged on the cylinder body (9 a 1), one end of a heat conducting piece (9 a 5) is positioned in the air cavity, the other end of the heat conducting piece (9 a 5) is in contact with a contact point (2 a) of an air circuit breaker (2), and the sliding sealing plate (9 a 2) is connected with an input end of a second heat dissipation module (9 b).
9. The temperature control structure of a power distribution cabinet according to claim 8, wherein the second heat dissipation module (9 b) comprises a second heat pipe (9 b 1), a third heat conducting fin (9 b 2) is arranged on the second heat pipe (9 b 1), the third heat conducting fin (9 b 2) is connected with a sliding sealing plate (9 a 2), the second heat pipe (9 b 1) is further provided with a second fin (9 b 3) in an arrangement mode, the branch passage (8 b) is provided with a containing cavity (8 d), the containing cavity (8 d) is intersected with the branch passage (8 b), the second fin (9 b 3) is located in the containing cavity (8 d) when the second heat dissipation module (9 b) is in a non-working state, the second fin (9 b 3) is located in the branch passage (8 b) when the second heat dissipation module (9 b) is in a working state, one end of the sliding tube (8 e) is communicated with the inside of the branch passage (8 b), the other end of the sliding tube (8 e) is communicated with the outside and faces the second heat pipe (2 b) and is provided with the sealing plate (4 e) of the sealing plate (4 b) of the sealing plate (2).
10. A power distribution cabinet comprising a temperature control structure according to any one of claims 1 to 9.
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| CN202311474927.4A CN117526126B (en) | 2023-11-08 | 2023-11-08 | Switch board accuse temperature structure and switch board thereof |
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| CN202311474927.4A CN117526126B (en) | 2023-11-08 | 2023-11-08 | Switch board accuse temperature structure and switch board thereof |
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| CN117526126B true CN117526126B (en) | 2024-05-17 |
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| CN117526126A (en) | 2024-02-06 |
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