CN118089142A - Heat exchange assembly of air conditioner electrical box, temperature control method of heat exchange assembly and air conditioner - Google Patents
Heat exchange assembly of air conditioner electrical box, temperature control method of heat exchange assembly and air conditioner Download PDFInfo
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- CN118089142A CN118089142A CN202410368319.3A CN202410368319A CN118089142A CN 118089142 A CN118089142 A CN 118089142A CN 202410368319 A CN202410368319 A CN 202410368319A CN 118089142 A CN118089142 A CN 118089142A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000000758 substrate Substances 0.000 claims abstract description 84
- 239000003507 refrigerant Substances 0.000 claims abstract description 49
- 238000010521 absorption reaction Methods 0.000 claims abstract description 38
- 230000017525 heat dissipation Effects 0.000 claims abstract description 36
- 238000004378 air conditioning Methods 0.000 claims abstract description 13
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 24
- 230000005494 condensation Effects 0.000 claims description 18
- 238000009833 condensation Methods 0.000 claims description 18
- 238000001704 evaporation Methods 0.000 claims description 18
- 230000008020 evaporation Effects 0.000 claims description 13
- 238000005057 refrigeration Methods 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/20—Electric components for separate outdoor units
- F24F1/24—Cooling of electric components
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/10—Arrangement or mounting thereof
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
- F28D15/06—Control arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The application relates to a heat exchange component of an air conditioner electrical box, a control method thereof and an air conditioner, wherein components are arranged in the air conditioner electrical box, and the heat exchange component comprises: the base plate is arranged on the air conditioner electrical box; the refrigerant pipe is arranged on the substrate and is respectively arranged on two sides of the substrate with the components; a plurality of heat pipes are arranged on the substrate side by side, one end of any heat pipe close to the component is arranged in a heat dissipation area of the substrate, and the other end of the heat pipe is arranged in a heat absorption area of the substrate; a control valve is arranged in each heat pipe, or a plurality of heat pipes are movably arranged on the substrate; and the temperature detection module is used for detecting the temperature of the components. Through adjusting the heat exchange efficiency of a plurality of heat pipes, the required heat dissipation capacity of components and parts can be accurately controlled, normal operation of the components and parts in a target temperature interval is guaranteed, meanwhile, the cold capacity of an air conditioning system is reasonably utilized, and an energy-saving effect is achieved.
Description
Technical Field
The application relates to the technical field of refrigeration equipment, in particular to a heat exchange assembly of an air conditioner electrical box, a temperature control method of the heat exchange assembly and an air conditioner.
Background
In recent years, with the increase of the integration degree of electronic components, the heat generation density of the electronic components has also increased sharply, and how to effectively dissipate heat has become a key factor in the development of electronic components. The same problems are faced in the field of air conditioning, and the current variable-frequency air conditioner has become the main stream of the market due to the advantages of high efficiency, energy conservation, low noise, fast temperature adjustment and the like. However, the frequency converter and other components have high power and large heat productivity, and if the heat cannot be discharged in time, the frequency converter is damaged due to the excessively high temperature, so that the operation of the whole machine is seriously affected. Therefore, in high-temperature refrigeration, it is necessary to reduce the temperature of components in the operation of the air conditioner, so that the air conditioner is reliably operated.
At present, the heat dissipation of components generally comprises two modes of air cooling heat dissipation and refrigerant heat dissipation, wherein the refrigerant heat dissipation mode is to embed a refrigerant pipe in a heat dissipation plate, fix the heat dissipation plate and the components for heating of an air conditioner at the same time, and take away the heat of the components through refrigerant circulation and heat exchange of a heat pipe. Because refrigerant pipe and heat pipe are all fixed, the heat exchange efficiency of heat pipe can't be adjusted, and under refrigeration operating mode, the components and parts heat dissipation can take away a part of cold volume, causes the air conditioner running power to rise, and the air conditioner performance decline, and the air conditioner energy consumption is higher.
Disclosure of Invention
The application provides a heat exchange assembly of an air conditioner electrical box, a temperature control method thereof and an air conditioner, which are used for solving the technical problems that the heat exchange efficiency of a heat pipe in the existing refrigerant heat dissipation mode cannot be adjusted, and the heat dissipation of components takes away part of cold energy under refrigeration working conditions, so that the running power of the air conditioner is increased, the performance of the air conditioner is reduced, and the energy consumption of the air conditioner is higher.
In a first aspect, the present application provides a heat exchange assembly of an air conditioner electrical box, in which components are disposed, the heat exchange assembly includes: the base plate is arranged on the air conditioner electrical box; the refrigerant pipe is arranged on the substrate and is respectively arranged on two sides of the substrate with the components; the heat pipes are arranged on the substrate side by side, one end of any one heat pipe, which is close to the component, is arranged in a heat dissipation area of the substrate, and the other end of the heat pipe, which is close to the refrigerant pipe, is arranged in a heat absorption area of the substrate; a control valve is arranged in each heat pipe to control the on-off of working medium in the corresponding heat pipe, or a plurality of heat pipes are movably arranged on the substrate to adjust the heat exchange area of the heat pipe and the heat absorption area of the substrate; the temperature detection module is used for detecting the temperature of the components; when the temperature of the component is higher than a first temperature threshold, a part of control valves or a part of heat pipes are opened to move towards a direction close to the heat absorption area of the substrate, so that the temperature of the component reaches the first temperature threshold after heat exchange of the heat pipes; when the temperature of the component is lower than the second temperature threshold, a part of the control valve or a part of the heat pipe is closed and moves in a direction away from the heat absorption area of the substrate, so that the cooling loss is reduced.
In one possible implementation manner, the heat pipe includes a pipe shell and a wick disposed on an inner wall of the pipe shell, two ends of the pipe shell are respectively provided with an end cover to form an ineffective section, a part of the heat pipe disposed on a heat dissipation area of the substrate is an evaporation section, a part of the heat pipe disposed on a heat absorption area of the substrate is a condensation section, and an insulation section is disposed between the evaporation section and the condensation section.
In one possible implementation, the heat pipe is disposed obliquely on the substrate, with the condensing section of the heat pipe being higher than the evaporating section thereof.
In one possible implementation manner, a control valve is arranged in each heat pipe, and the control valve is arranged on an insulation section in the heat pipe and used for controlling on-off of working media in the heat pipe.
In one possible implementation manner, the heat pipe cooling device further comprises a plurality of first driving mechanisms arranged on the substrate, wherein the power output ends of the plurality of first driving mechanisms are in one-to-one correspondence with the plurality of heat pipes and are in transmission connection with the heat pipes, so that the heat pipes rotate in a direction approaching or separating from the refrigerant pipes.
In one possible implementation manner, the first driving mechanism comprises a rocker, a first motor and a first gear connected with the rocker, the first motor is arranged on the base plate, the rocker is arranged on the base plate in a sliding manner, one end of the rocker is rotationally connected with the heat pipe, and a first rack meshed with the first gear is arranged at the other end of the rocker.
In one possible implementation manner, one end of the heat pipe is rotationally connected with the base plate through a first pin shaft, the other end of the heat pipe is rotationally connected with the rocker through a second pin shaft, and a sliding groove for the second pin shaft to slide is formed in the heat pipe.
In one possible implementation manner, the heat pipe cooling device further comprises a plurality of second driving mechanisms, wherein the power output ends of the second driving mechanisms are in one-to-one correspondence with the heat pipes and are in transmission connection with the heat pipes, so that the heat pipes can move in a direction approaching or separating from the refrigerant pipes.
In one possible implementation manner, the second driving mechanism comprises a sliding rod, a second motor and a second gear connected with the second motor, the sliding rod is arranged on the base plate in a sliding manner, the second motor is arranged on the base plate, one end of the sliding rod is fixedly connected with the heat pipe, a second rack meshed with the second gear is arranged at the other end of the sliding rod, and the second rack is parallel to the heat pipe.
In one possible implementation manner, a through groove is arranged on the substrate, the through groove divides the substrate into a heat dissipation area and a heat absorption area, the component is arranged in the heat dissipation area of the substrate, and the refrigerant pipe is arranged in the heat absorption area of the substrate.
In a second aspect, the application provides an air conditioner, comprising an air conditioner electrical box and a heat exchange assembly of the air conditioner electrical box.
In a third aspect, the present application provides a temperature control method for an air conditioner electrical box, applied to an air conditioner as described above, the temperature control method comprising: acquiring the working condition of an air conditioner and the temperature of components; if the air conditioning working condition is a refrigeration working condition and the temperature of the components is greater than a first temperature threshold, controlling part of the control valves to be in an open state or the heat pipe to move towards a direction close to the heat absorption area of the substrate; and if the air conditioning working condition is a refrigeration working condition and the temperature of the components is lower than the second temperature threshold, controlling a part of the control valves to be in a closed state or the heat pipe to move in a direction away from the heat absorption area of the substrate.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
According to the heat exchange assembly of the air conditioner electrical box, the temperature control method thereof and the air conditioner provided by the embodiment of the application, when the temperature of components is higher than the first temperature threshold, part of control valves are opened, the heat exchange efficiency of a plurality of heat pipes is improved by increasing the number of the heat pipes participating in heat exchange, or part of the heat pipes move towards the direction close to the heat absorption area of the substrate, and the heat exchange efficiency of the plurality of heat pipes is improved by increasing the heat exchange area of the heat pipes in contact with the heat absorption area of the substrate, so that the temperature of the components is quickly reduced after heat exchange of the heat pipes, the first temperature threshold is reached, and normal operation of the components is ensured; when the temperature of the components is lower than a second temperature threshold, part of the control valves are closed or the heat exchange area of part of the heat pipes and the heat absorption area of the substrate is reduced, so that the cooling capacity loss of the air conditioner is reduced, and the energy is saved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application 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, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
Fig. 1 is a schematic structural diagram of a heat exchange assembly of an air conditioner electrical box according to an embodiment of the present application;
fig. 2 is a schematic exploded view of a heat exchange assembly of the air conditioner electrical box shown in fig. 1;
FIG. 3 is a schematic view of an internal structure of a heat pipe of a heat exchange assembly according to an embodiment of the present application, wherein arrows show a flow direction of an internal working fluid;
FIG. 4 is a schematic view illustrating an internal structure of a heat pipe of a heat exchange assembly according to another embodiment of the present application;
FIG. 5 is a schematic view of a portion of a heat exchange assembly according to another embodiment of the present application;
FIG. 6 is a schematic view of a portion of a heat exchange assembly according to another embodiment of the present application;
fig. 7 is a schematic structural diagram of an air conditioner according to an embodiment of the present application;
fig. 8 is a flowchart of a temperature control method of an air conditioner electrical box according to an embodiment of the present application.
Reference numerals illustrate:
100. An air conditioner;
1. A heat exchange assembly; 11. a substrate; 111. a through groove; 112. a heat dissipation area; 113. a heat absorbing region; 12. a refrigerant pipe; 13. a heat pipe; 131. a tube shell; 132. a wick; 133. an end cap; 134. a control valve; 14. a first driving mechanism; 141. a rocker; 142. a first gear; 143. a first rack; 144. a first pin; 145. a second pin; 146. a chute; 15. a second driving mechanism; 151. a slide bar; 152. a second gear; 153. a second rack; 2. an air conditioner electrical box; 21. and (5) a component.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The following disclosure provides many different embodiments, or examples, for implementing different structures of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
For ease of description, spatially relative terms, such as "inner," "outer," "lower," "upper," "above," "front," "rear," and the like, may be used herein to describe one element's or feature's relative positional relationship or movement to another element's or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figure experiences a position flip or a change in attitude or a change in state of motion, then the indications of these directivities correspondingly change, for example: an element described as "under" or "beneath" another element or feature would then be oriented "over" or "above" the other element or feature. Accordingly, the example term "below … …" may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used herein interpreted accordingly.
In the prior art, heat dissipation of components of an air conditioner generally comprises two modes of air cooling heat dissipation and refrigerant heat dissipation, wherein the refrigerant heat dissipation mode is to embed a refrigerant pipe in a heat dissipation plate, fix the heat dissipation plate and components of the air conditioner at the same time, and take away the heat of the components through refrigerant circulation and heat exchange of a heat pipe. Because refrigerant pipe and heat pipe are all fixed, the heat exchange efficiency of heat pipe can't be adjusted, and under refrigeration operating mode, the components and parts heat dissipation can take away a part of cold volume, causes the air conditioner running power to rise, and the air conditioner performance decline, and the air conditioner energy consumption is higher.
In order to solve the technical problems that the heat exchange efficiency of a heat pipe in the existing refrigerant heat dissipation mode cannot be adjusted, and the heat dissipation of components takes away part of cold energy to cause the operation power of an air conditioner to rise, the performance of the air conditioner to be reduced and the energy consumption of the air conditioner to be higher under the refrigeration working condition, the application provides the heat exchange assembly of the air conditioner electric appliance box, the control method thereof and the air conditioner.
Fig. 1 to 2 are schematic diagrams showing a heat exchange assembly 11 of an air conditioner electrical box 2 according to an embodiment of the present application, wherein components 21 are disposed in the air conditioner electrical box 2, the heat exchange assembly 1 includes a substrate 11, a refrigerant pipe 12, a temperature detection module and a plurality of heat pipes 13, and the substrate 11 is disposed on the air conditioner electrical box 2; the refrigerant pipe 12 is arranged on the substrate 11 and is respectively arranged on two sides of the substrate 11 with the components 21; the heat pipes 13 are arranged on the substrate 11 side by side, one end of any one heat pipe 13 close to the component 21 is arranged in a heat dissipation area 112 of the substrate 11, and the other end close to the refrigerant pipe 12 is arranged in a heat absorption area 113 of the substrate 11; a control valve 134 is arranged in each heat pipe 13 to control the on-off of working medium in the corresponding heat pipe 13, or a plurality of heat pipes 13 are movably arranged on the substrate 11 to adjust the heat exchange area of the heat pipes 13 and the heat absorption area 113 of the substrate 11; a temperature detection module (not shown) for detecting the temperature of the component 21; when the temperature of the component 21 is higher than the first temperature threshold, a part of the control valve 134 or a part of the heat pipe 13 is opened to move towards the direction close to the heat absorption area 113 of the substrate 11, so that the temperature of the component 21 reaches the first temperature threshold after heat exchange of the heat pipe 13; when the temperature of the component 21 is lower than the second temperature threshold, a part of the control valve 134 or a part of the heat pipe 13 is closed and moved away from the heat absorbing region 113 of the substrate 11, so as to reduce the cooling loss.
The heating power of the component 21 is generally within 100W, and the temperature of the component 21 can normally operate within 45-70 ℃, so that the first temperature threshold can be set to 70 ℃ and the second temperature threshold can be set to 45 ℃. Under different working conditions, the heating conditions of the components 21 are different, and then the real-time working temperatures of the components 21 are different. The refrigerant pipe 12 may be directly a compressor suction pipe or may be connected in parallel with the compressor suction pipe to draw out the refrigerant cooling capacity.
It should be noted that, in the high-temperature refrigeration working condition of the air conditioner, one side of the substrate 11 directly contacts the component 21, and the component 21 heats in the working process, so that the part of the substrate 11 contacting the component 21 forms a heat dissipation area 112 with higher temperature; the other side of the substrate 11 is directly contacted with the refrigerant pipe 12, and the refrigerant cooling capacity of the refrigerant pipe 12 is transferred to the substrate 11 by heat conduction, so that the part of the substrate 11 contacted with the refrigerant pipe 12 forms a heat absorption area 113 with lower temperature. When the temperature of the component 21 is higher than the first temperature threshold, part of the control valves 134 are opened to enable the working medium in the heat pipes 13 to flow, the phase change process of condensation of the working medium at the cold end after the evaporation of the hot end is utilized (namely, the evaporation latent heat and the condensation latent heat of the working medium are utilized), the heat is quickly conducted, the heat exchange efficiency of a plurality of heat pipes 13 is improved by increasing the number of the heat pipes 13 participating in heat exchange, the heat of the heat dissipation area 112 of the substrate 11 is transferred to the heat absorption area 113 (the refrigerant pipe 12 is used as a cold source) of the substrate 11 through the heat pipes 13, the temperature of the component 21 is quickly reduced after the heat exchange of the heat pipes 13, and the normal operation of the component 21 is ensured; part of the heat pipes 13 can be moved towards the direction close to the heat absorption area 113 of the substrate 11, and the heat exchange area of the heat pipes 13 and the heat absorption area 113 of the substrate 11 is increased, so that the heat exchange efficiency of the heat pipes 13 is improved, the temperature of the components 21 is quickly reduced after heat exchange of the heat pipes 13, and normal operation of the components 21 is ensured. When the temperature of the component 21 is lower than the second temperature threshold, part of the control valves 134 are closed to block the flow of working medium in the heat pipes 13, and the heat exchange efficiency of the heat pipes 13 is reduced by reducing the number of the heat pipes 13 participating in heat exchange, or the heat exchange area of part of the heat pipes 13 and the heat absorption area 113 of the substrate 11 is reduced, so that the cold energy loss of the air conditioning system is reduced, and the energy is saved.
As shown in fig. 3, in some embodiments, the heat pipe 13 is a closed heat pipe 13, which includes a tube shell 131 and a wick 132 disposed on an inner wall of the tube shell 131, where the wick 132 is a capillary tube made of a capillary porous material. The two ends of the tube shell 131 are respectively provided with an end cover 133 to form an ineffective section, the part of the heat pipe 13 arranged in the heat dissipation area 112 of the base plate 11 is an evaporation section, the part of the heat pipe 13 arranged in the heat absorption area 113 of the base plate 11 is a condensation section, and an insulating section is arranged between the evaporation section and the condensation section. The inside of the tube 131 is pumped into a negative pressure state, and is filled with a proper amount of liquid (working medium) with low boiling point and easy volatilization.
When the evaporation section of the heat pipe 13 is heated, the liquid in the capillary tube is quickly vaporized, the vapor flows to the condensation section under the power of thermal diffusion, and is condensed in the condensation section to release heat, and the liquid flows back to the evaporation end along the porous material by capillary action, so that the liquid circulates.
Preferably, the heat pipe 13 is obliquely arranged on the substrate 11, and the condensing section of the heat pipe 13 is higher than the evaporating section thereof, so that the liquid condensed by the condensing section of the heat pipe 13 flows back to the evaporating end more quickly under the action of gravity, the heat exchange efficiency of the heat pipe 13 is improved, and the heat dissipation speed of the component 21 is further improved.
In some embodiments, as shown in fig. 4, a control valve 134 is disposed in each heat pipe 13, where the control valve 134 is disposed in an insulation section in the heat pipe 13, and is used to control on/off of working medium in the heat pipe 13.
The control valve 134 is opened to enable the working medium in the heat pipes 13 to normally flow, the working medium can be condensed in the condensing section to generate phase change after being heated and evaporated in the evaporating section, so that heat is quickly conducted, the heat exchange efficiency of the heat pipes 13 is improved by increasing the number of the heat pipes 13 participating in heat exchange, and the temperature of the components 21 is quickly reduced after heat exchange of the heat pipes 13; and part of the control valve 134 is closed to block the flow of working medium in the heat pipe 13, so that the heat exchange efficiency of the heat pipe 13 is reduced, the loss of the cold of the system is reduced, and the energy is saved. Of course, the embodiment can also be combined with the following embodiment that the heat pipe 13 is movable on the substrate 11, that is, the on-off of the working medium in part of the heat pipe 13 and the heat exchange area of the heat pipe 13 and the heat absorption area 113 of the substrate 11 can be controlled simultaneously, so as to achieve the effect of adjusting the heat exchange efficiency of the heat pipes 13.
In some embodiments, as shown in fig. 5, the heat exchange assembly 1 further includes a plurality of first driving mechanisms 14 disposed on the base plate 11, and power output ends of the plurality of first driving mechanisms 14 are in one-to-one correspondence with the plurality of heat pipes 13 and are in transmission connection with each other, so that the heat pipes 13 rotate in a direction approaching or separating from the refrigerant pipe 12.
The power output end of the first driving mechanism 14 may be in transmission connection with one end of the refrigerant pipe 12 close to the component 21, or may be in transmission connection with one end of the refrigerant pipe 12 close to the refrigerant pipe 12. When the first driving mechanism 14 drives one end of the heat pipe 13 near the refrigerant pipe 12 to rotate relative to the other end, the inclination angle θ of the heat pipe 13 on the substrate 11 is adjusted. Preferably, the center of rotation of the heat pipe 13 is set to be offset from the midpoint of the heat pipe 13. Since the heat absorbing region 113 of the substrate 11 directly contacts the refrigerant pipe 12, the heat absorbing region 113 of the substrate 11 forms a heat sink having a temperature gradient through heat exchange between the refrigerant pipe 12 and the substrate 11. If the inclination angle theta is larger, on one hand, the contact area between the condensation section of the heat pipe 13 and the heat absorption region 113 of the substrate 11 is larger, and on the other hand, the condensation section of the heat pipe 13 is closer to the cold source center of the substrate 11, then the temperature difference between the condensation section and the evaporation section of the heat pipe 13 is larger, so that the heat exchange efficiency of the heat pipe 13 is improved, and after heat exchange of the heat pipe 13, the components 21 are further and more rapidly radiated; conversely, if the tilt angle θ is smaller, the nozzle may decrease the heat exchange efficiency of the heat pipe 13.
In an alternative embodiment, the first driving mechanism 14 includes a rocker 141, a first motor and a first gear 142 (only one is shown in fig. 5 by way of example) connected thereto, the first motor is disposed on the base plate 11, a first slider (not shown in the figure) slidingly connected to the base plate 11 is disposed on a side of the rocker 141 facing the base plate 11, one end of the rocker 141 is rotatably connected to the heat pipe 13, and a first rack 143 in meshed connection with the first gear 142 is disposed on the other end of the rocker 141 remote from the heat pipe 13. The first motor drives the first gear 142 to rotate, and the rocker 141 is driven to slide on the base plate 11 under the transmission action of the first gear 142 and the first rack 143, so that the heat pipe 13 is rotated.
Further, one end of the heat pipe 13 is rotatably connected with the base plate 11 through a first pin 144, the other end is rotatably connected with the rocker 141 through a second pin 145, a sliding groove 146 for sliding the second pin 145 is provided on the heat pipe 13, and preferably, the sliding groove 146 is provided as an arc groove. As shown in fig. 5, the evaporation section of the heat pipe 13 may directly conduct heat with the heat dissipation area 112 of the substrate 11 through the first pin 144, the condensation section of the heat pipe 13 directly contacts with the heat absorption area 113 of the substrate 11, and the cold energy of the refrigerant pipe 12 is transferred to the condensation section of the heat pipe 13 through the substrate 11.
In some embodiments, as shown in fig. 6, the heat exchange assembly 1 further includes a plurality of second driving mechanisms 15, and power output ends of the plurality of second driving mechanisms 15 are in one-to-one correspondence with and in transmission connection with the plurality of heat pipes 13, so that the heat pipes 13 move on the substrate 11 in a direction approaching or separating from the refrigerant pipes 12.
Since the heat absorbing region 113 of the substrate 11 directly contacts the refrigerant pipe 12, the heat absorbing region 113 of the substrate 11 forms a heat sink having a temperature gradient through heat exchange between the refrigerant pipe 12 and the substrate 11. If the second driving mechanism 15 drives the heat pipe 13 to move towards the direction close to the refrigerant pipe 12, on one hand, the larger the contact area between the condensation section of the heat pipe 13 and the heat absorption region 113 of the substrate 11 is, and on the other hand, the condensation section of the heat pipe 13 is closer to the cold source center of the substrate 11, the larger the temperature difference between the condensation section and the evaporation section of the heat pipe 13 is, so that the heat exchange efficiency of the heat pipe 13 is improved, and the heat of the component 21 is further dissipated more rapidly after the heat exchange of the heat pipe 13; conversely, if the second driving mechanism 15 drives the heat pipe 13 to move away from the refrigerant pipe 12, the heat exchange efficiency of the heat pipe 13 can be reduced.
In an alternative embodiment, as shown in fig. 6, the second driving mechanism 15 includes a sliding rod 151, a second motor and a second gear 152 connected thereto, one side of the sliding rod 151 facing the base plate 11 is provided with a second slider (not shown in the drawing) slidingly connected to the base plate 11, the second motor is disposed on the base plate 11, one end of the sliding rod 151 is fixedly connected to the heat pipe 13, the other end is provided with a second rack 153 in meshed connection with the second gear 152, and the second rack 153 is parallel to the heat pipe 13. The second motor drives the second gear 152 to rotate, and under the transmission action of the second gear 152 and the second rack 153, the sliding rod 151 is driven to slide on the base plate 11, so that the heat pipe 13 is moved towards or away from the refrigerant pipe 12.
In some embodiments, as shown in fig. 2, a through groove 111 is disposed on the substrate 11, the through groove 111 divides the substrate 11 into a heat dissipation area 112 and a heat absorption area 113, the component 21 is disposed on the heat dissipation area 112 of the substrate 11, and the refrigerant pipe 12 is disposed on the heat absorption area 113 of the substrate 11. By providing the through grooves 111, the condensed water generated at the upper end of the outer wall of the heat pipe 13 is guided to flow directly into the through grooves 111 when flowing down the heat pipe 13, and the condensed water is prevented from flowing from the substrate 11 to the component 21 side to damage the component 21.
The embodiment of the application also provides an air conditioner 100, as shown in fig. 7, comprising an air conditioner electrical box 2 and a heat exchange assembly 1 of the air conditioner electrical box 2 as described above. The working principle of the embodiment of the air conditioner 100 refers to the foregoing embodiment of the heat exchange assembly 1, and is not described herein. The heat exchange efficiency of the heat pipes 13 is adjusted, so that the heat dissipation capacity required by the components 21 can be accurately controlled, the components 21 can be ensured to work normally in a target temperature interval, and meanwhile, the cooling capacity of the air conditioning system is reasonably utilized, so that the energy-saving effect is achieved.
As shown in fig. 8, the embodiment of the present application further provides a temperature control method of the air conditioner electrical box 2, which is applied to the air conditioner 100 as described above, and the temperature control method includes the following steps:
s1, acquiring the air conditioning working condition and the temperature of the component 21.
S2, if the air conditioning condition is a refrigeration condition and the temperature of the component 21 is greater than the first temperature threshold, controlling part of the control valves 134 to be in an open state or the heat pipes 13 to move towards the direction close to the heat absorption area 113 of the substrate 11.
S3, if the air-conditioning condition is a refrigeration condition and the temperature of the component 21 is lower than the second temperature threshold, controlling a part of the control valves 134 to be in a closed state or the heat pipes 13 to move in a direction away from the heat absorbing area 113 of the substrate 11.
The working principle of the embodiment of the method refers to the foregoing embodiment of the heat exchange assembly 1, and is not described herein. By adopting the control strategy, the heat exchange efficiency of the heat pipes 13 is regulated, so that the heat dissipation capacity required by the components 21 can be accurately controlled, the components 21 can be ensured to work normally in a target temperature interval, and meanwhile, the cooling capacity of the air conditioning system is reasonably utilized, so that the energy-saving effect is achieved.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless an order of performance is explicitly stated. It should also be appreciated that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (12)
1. The utility model provides a heat exchange assembly of air conditioner electrical apparatus box, its characterized in that is provided with components and parts (21) in air conditioner electrical apparatus box (2), heat exchange assembly (1) include:
a base plate (11) arranged on the air-conditioning electrical box (2);
Refrigerant pipes (12) provided on the substrate (11) and provided on both sides of the substrate (11) with the components (21), respectively;
A plurality of heat pipes (13) arranged side by side on the substrate (11), wherein one end of any one heat pipe (13) close to the component (21) is arranged in a heat radiation area (112) of the substrate (11), and the other end close to the refrigerant pipe (12) is arranged in a heat absorption area (113) of the substrate (11); a control valve (134) is arranged in each heat pipe (13) to control the on-off of working medium in the corresponding heat pipe (13), or the plurality of heat pipes (13) are movably arranged on the base plate (11) to adjust the heat exchange area of the heat pipe (13) and the heat absorption area (113) of the base plate (11); and
The temperature detection module is used for detecting the temperature of the component (21);
When the temperature of the component (21) is higher than a first temperature threshold value, opening a part of the control valve (134) or moving a part of the heat pipe (13) in a direction close to a heat absorption area (113) of the substrate (11), so that the temperature of the component (21) reaches the first temperature threshold value after heat exchange of the heat pipe (13); when the temperature of the component (21) is lower than a second temperature threshold value, the control valve (134) is closed or part of the heat pipe (13) moves in a direction away from the heat absorption area (113) of the substrate (11) so as to reduce the cold energy loss.
2. The heat exchange assembly according to claim 1, wherein the heat pipe (13) includes a pipe shell (131) and a wick (132) disposed on an inner wall of the pipe shell (131), end caps (133) are respectively disposed at two ends of the pipe shell (131) to form an ineffective section, a portion of the heat pipe (13) disposed in a heat dissipation area (112) of the base plate (11) is an evaporation section, a portion of the heat pipe (13) disposed in a heat absorption area (113) of the base plate (11) is a condensation section, and an insulating section is disposed between the evaporation section and the condensation section.
3. The heat exchange assembly according to claim 2, wherein the heat pipe (13) is disposed obliquely on the base plate (11), and a condensing section of the heat pipe (13) is higher than an evaporating section thereof.
4. The heat exchange assembly according to claim 2, wherein a control valve (134) is provided in each heat pipe (13), and the control valve (134) is provided in an insulation section in the heat pipe (13) for controlling on-off of working medium in the heat pipe (13).
5. The heat exchange assembly according to claim 2, further comprising a plurality of first driving mechanisms (14) disposed on the base plate (11), wherein power output ends of the plurality of first driving mechanisms (14) are in one-to-one correspondence with the plurality of heat pipes (13) and are in transmission connection with each other, so that the heat pipes (13) rotate in a direction approaching or separating from the refrigerant pipe (12).
6. The heat exchange assembly according to claim 5, wherein the first driving mechanism (14) comprises a rocker (141), a first motor and a first gear (142) connected with the rocker, the first motor is arranged on the base plate (11), the rocker (141) is slidably arranged on the base plate (11), one end of the rocker (141) is rotatably connected with the heat pipe (13), and the other end of the rocker is provided with a first rack (143) in meshed connection with the first gear (142).
7. The heat exchange assembly according to claim 6, wherein one end of the heat pipe (13) is rotatably connected with the base plate (11) through a first pin (144), the other end is rotatably connected with the rocker (141) through a second pin (145), and a chute (146) for sliding the second pin (145) is arranged on the heat pipe (13).
8. The heat exchange assembly according to claim 2, further comprising a plurality of second driving mechanisms (15), wherein power output ends of the second driving mechanisms (15) are in one-to-one correspondence with the heat pipes (13) and are in transmission connection with each other, so that the heat pipes (13) move in a direction approaching or separating from the refrigerant pipes (12).
9. The heat exchange assembly according to claim 8, wherein the second driving mechanism (15) comprises a sliding rod (151), a second motor and a second gear (152) connected with the sliding rod, the sliding rod (151) is slidably arranged on the base plate (11), the second motor is arranged on the base plate (11), one end of the sliding rod (151) is fixedly connected with the heat pipe (13), the other end of the sliding rod is provided with a second rack (153) in meshed connection with the second gear (152), and the second rack (153) is parallel to the heat pipe (13).
10. The heat exchange assembly according to claim 1, wherein a through groove (111) is provided on the base plate (11), the through groove (111) separates the base plate (11) into the heat radiation area (112) and the heat absorption area (113), the component (21) is provided in the heat radiation area (112) of the base plate (11), and the refrigerant pipe (12) is provided in the heat absorption area (113) of the base plate (11).
11. An air conditioner characterized by comprising an air conditioner box (2) and a heat exchange assembly (1) of the air conditioner box according to any one of claims 1 to 10.
12. A temperature control method of an air conditioner electrical box, applied to an air conditioner (100) according to claim 11, characterized in that the temperature control method comprises:
acquiring the working condition of an air conditioner and the temperature of components (21);
If the air conditioning working condition is a refrigeration working condition and the temperature of the component (21) is greater than a first temperature threshold, controlling part of the control valve (134) to be in an open state or controlling the heat pipe (13) to move in a direction close to the heat absorption area (113) of the substrate (11);
And if the air conditioning working condition is a refrigeration working condition and the temperature of the component (21) is lower than a second temperature threshold value, controlling part of the control valve (134) to be in a closed state or controlling the heat pipe (13) to move in a direction away from the heat absorption area (113) of the substrate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410368319.3A CN118089142A (en) | 2024-03-28 | 2024-03-28 | Heat exchange assembly of air conditioner electrical box, temperature control method of heat exchange assembly and air conditioner |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410368319.3A CN118089142A (en) | 2024-03-28 | 2024-03-28 | Heat exchange assembly of air conditioner electrical box, temperature control method of heat exchange assembly and air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118741972A (en) * | 2024-08-05 | 2024-10-01 | 江苏捷网智能科技有限公司 | Network security monitoring device and monitoring method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118741972A (en) * | 2024-08-05 | 2024-10-01 | 江苏捷网智能科技有限公司 | Network security monitoring device and monitoring method thereof |
| CN118741972B (en) * | 2024-08-05 | 2025-01-24 | 江苏捷网智能科技有限公司 | Network security monitoring device and monitoring method thereof |
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