CN112050674A - Variable heat dissipation condenser and loop heat pipe - Google Patents
Variable heat dissipation condenser and loop heat pipe Download PDFInfo
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- CN112050674A CN112050674A CN202010980945.XA CN202010980945A CN112050674A CN 112050674 A CN112050674 A CN 112050674A CN 202010980945 A CN202010980945 A CN 202010980945A CN 112050674 A CN112050674 A CN 112050674A
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- heat
- heat dissipation
- condenser
- liquid
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- 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
- F28D15/04—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 with tubes having a capillary structure
- F28D15/043—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 with tubes having a capillary structure forming loops, e.g. capillary pumped loops
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- 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
Abstract
The invention relates to the technical field of heat dissipation of spacecrafts and electronic equipment, in particular to a variable heat dissipation condenser and a loop heat pipe. The variable heat dissipation condenser comprises a condensation pipe section, a controller and a heat dissipation device; the heat dissipation device is arranged on one side of the condensation pipe section and used for dissipating heat of the condensation pipe section; the controller is connected with the heat dissipation device and used for controlling the heat dissipation efficiency of the heat dissipation device. According to the invention, the heat dissipation efficiency is changed through the controller, so that the activation degree of the condenser is further improved, redundant liquid working media can be stored in the liquid storage device and the liquid main channel, the heat leakage influence is reduced, gas-liquid distribution beneficial to operation in the forward direction is formed, finally, the system thermal resistance of the loop heat pipe can be reduced, the operation stability of the loop heat pipe is improved, and the phenomena of dry burning and the like are avoided.
Description
Technical Field
The invention relates to the technical field of heat dissipation of spacecrafts and electronic equipment, in particular to a variable heat dissipation condenser and a loop heat pipe.
Background
The loop heat pipe is efficient two-phase heat transfer equipment, has the characteristics of high heat transfer performance, long-distance heat transfer, excellent temperature control characteristic, optional bending of a pipeline, convenience in installation and the like, and has incomparable advantages of various other heat transfer equipment, so that the loop heat pipe has very wide application prospects in various fields of aviation, aerospace, ground electronic equipment heat dissipation and the like.
The loop heat pipe mainly comprises an evaporator, a condenser, a liquid storage device, a vapor pipeline and a liquid pipeline. The whole circulation process is as follows: the liquid is evaporated on the outer surface of the capillary core in the evaporator, the heat outside the evaporator is absorbed, the generated steam flows to the condenser from the steam pipeline, the heat is released in the condenser and condensed into liquid, and finally the liquid flows into the liquid storage device through the liquid pipeline, and the liquid working medium in the liquid storage device maintains the supply of the capillary core in the evaporator.
In engineering application, when the condensing capacity of the condenser is too strong, adverse effects can be generated on the heat transfer performance and the operation stability of the loop heat pipe, and the main phenomena are that the liquid storage device and the liquid main channel are always in two-phase states, so that heat leakage from the evaporator to the liquid storage device is increased, and finally the thermal resistance is large.
Disclosure of Invention
The invention aims to provide a variable heat radiation condenser and a loop heat pipe, which can reduce system thermal resistance.
The technical scheme of the invention is as follows:
a variable heat radiation condenser comprises a condensation pipe section, a controller and a heat radiation device;
the heat dissipation device is arranged on one side of the condensation pipe section and used for dissipating heat of the condensation pipe section;
the controller is connected with the heat dissipation device and used for controlling the heat dissipation efficiency of the heat dissipation device.
Preferably, the heat dissipation device is a convection heat dissipation structure.
Preferably, the convection heat dissipation structure includes at least one fan.
Preferably, when the number of the fans is one, the controller is used for controlling the rotating speed of the fans;
when the number of the fans is multiple, the controller is used for respectively changing the on-off state of the fans.
Preferably, the heat sink is a heat exchange structure.
Preferably, the heat exchange structure is a refrigerator;
the controller is connected with the refrigerating machine and used for controlling the refrigerant circulation flow of the refrigerating machine.
Preferably, the heat dissipation device is a radiation heat dissipation structure.
Preferably, the heat dissipation device is a radiation plate;
the condensation pipe section is formed by connecting a plurality of condensation branches in parallel;
the condensing branch is provided with a control valve which is used for controlling the passage state of the condensing branch;
the controller is connected with the control valve.
Preferably, the condensation pipe section is further provided with heat dissipation fins, the heat dissipation fins are arranged on one side of the condensation pipe section, and the heat dissipation fins are used for increasing the heat dissipation efficiency of the condensation pipe section.
The invention also provides a loop heat pipe which comprises the variable heat radiation condenser.
The invention has the beneficial effects that:
the heat dissipation efficiency is changed through the controller, the activation degree of the condenser is further improved, redundant liquid working media can be stored in the liquid storage device and the liquid main channel, the heat leakage influence is reduced, gas-liquid distribution beneficial to operation in the forward direction is formed, and finally the system thermal resistance of the loop heat pipe can be reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first convection heat-radiation type condenser according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second convection heat-radiation type condenser according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a heat exchange type condenser according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a condenser with radiation heat dissipation according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a loop heat pipe according to an embodiment of the present invention.
Description of the main element symbols: 1-variable speed fan; 2-radiating fins; 3-a condensation pipe section; 4-a first fan; 5-a second fan; 6-a third fan; 7-a refrigerator; 8-a cold plate; 9-a radiation plate; 10-a control valve; 11-a condensation branch; 12-an evaporator; 13-a reservoir; 14-a condenser; 15-vapor line; 16-a liquid line; 17-capillary wick.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The variable heat radiation condenser provided by the invention is shown in fig. 1-4, and comprises a condensation pipe section 3, a controller and a heat radiation device; the heat dissipation device is arranged on one side of the condensation pipe section 3 and used for dissipating heat of the condensation pipe section 3; the controller is connected with the heat dissipation device and used for controlling the heat dissipation efficiency of the heat dissipation device.
In the loop heat pipe, the capillary force is the power for driving the working medium to circulate, and the capillary force generated by the working medium in the capillary hole must be capable of offsetting all pressure drops required to be overcome in the circulation process, wherein the pressure drops mainly comprise vapor flow resistance, flow resistance of a two-phase region and an over-cooling region in the condenser 14, flow resistance of the liquid pipeline 16 and resistance required to be overcome when the liquid flows through the capillary core 17.
The working medium in three parts of the loop heat pipe exists in a saturated state, namely an evaporator 12, a condenser 14 and a liquid storage device 13 (the liquid storage device 13 is also in a gas-liquid two-phase saturated state before being filled with liquid).
In summary, the circulation of the working fluid requires a driving pressure difference between the evaporator 12, the condenser 14 and the liquid reservoir 13. When the three components are in a saturated state, a certain saturation temperature difference exists to form a saturation pressure difference. Therefore, the expression "the capillary force is required to overcome the resistance during the normal operation of the loop heat pipe" can be interpreted in another angle, and a certain temperature difference is required to be formed among the evaporator 12, the condenser 14 and the liquid reservoir 13 during the normal operation of the loop heat pipe.
When the heat load of the loop heat pipe changes, the effective condensing area (two-phase region length) of the condenser 14 changes, and the gas-liquid distribution state in the loop changes. When the heat load is small, the effective condensing area of the condenser 14 is small, more liquid working media stay in the supercooling area of the condenser 14, and the liquid storage device 13 only contains less liquid working media; when the heat load is increased, the effective condensation area of the condenser 14 is increased, the length of the two-phase region is increased, the length of the supercooling region is reduced, redundant liquid flows to the liquid storage device 13, more liquid working medium needs to be contained in the liquid storage device 13 until the heat load is large to a certain degree, and the liquid storage device 13 is completely filled with the liquid and is in a supercooling state.
In addition, the loop heat pipe has a characteristic that when the liquid content rates in the liquid storage device 13 and the liquid main channel are small, the liquid main channel can be evaporated, condensed and transferred heat like the heat pipe, and the heat leakage of the capillary core 17 in the evaporator 12 is transferred to the liquid storage device 13, so that the heat leakage is increased, the temperature difference and the pressure difference between the evaporator 12 and the liquid storage device 13 are not formed, and the stability of operation is also influenced.
In the currently used loop heat pipes, the condenser 14 is designed according to the maximum heat transfer capacity, and the condensing capacity is constant, so that the loop heat pipes generally have low working temperature under low power and high working temperature under high power.
However, in engineering applications, when the condenser 14 of the loop heat pipe has a fixed heat dissipation capacity and a large condensation capacity, the following problems occur:
(1) the steam working medium is condensed into liquid only in a small area after entering the condenser 14, the heat exchange temperature difference is small and is not enough to form the relative temperature difference to the liquid storage device 13, and the pressure difference corresponding to the saturated temperature difference is the driving force of the working medium flowing from the condenser 14 to the liquid storage device 13, namely, the sufficient driving force cannot be formed;
(2) because condenser 14 has strong condensing capacity and low temperature, the liquid working medium tends to exist in condenser 14, and condenser 14 cannot be completely activated to effectively dissipate heat;
(3) the leakage heat of the evaporator 12 to the liquid storage device 13 is increased due to the fact that the working liquid in the liquid storage device 13 and the liquid main channel is slightly less, and the difficulty of forming saturation temperature difference and pressure difference between the evaporator 12 and the liquid storage device 13 is further increased;
the three problems finally cause the phenomena of higher working temperature, larger heat transfer resistance, unstable operation and even dry burning of the loop heat pipe.
In this embodiment, the controller controls the heat dissipation efficiency of the heat dissipation device to be adapted to the thermal load of the condenser 14, so as to ensure that a saturation temperature difference and a pressure difference between the condenser 14 and the liquid reservoir 13 required by operation can be formed, drive the working medium to flow in the forward direction, effectively activate the condenser 14, enable the liquid to flow to the liquid reservoir 13 and the liquid main channel, and reduce the heat leakage from the evaporator 12 to the liquid reservoir 13.
In fig. 1-4, the direction of the arrows in the condenser section is the direction of flow of the working fluid.
Specifically, in the present embodiment, the heat dissipation device may be disposed in various ways, for example, the heat dissipation device may be a convection heat dissipation structure.
The main function of the convection heat dissipation structure is to take away the heat on the surface of the condensation pipe section 3 in a convection mode, so as to achieve the purpose of heat dissipation of the condensation pipe section 3.
There are many ways of the convection heat dissipation structure, for example, in this embodiment, the convection heat dissipation structure is a fan, that is, the heat on the surface of the condensation pipe section 3 is taken away by blowing air of the fan, so as to achieve the purpose of forcibly dissipating heat of the condensation pipe section 3.
Specifically, in the embodiment, as shown in fig. 1, when the number of the fans is one, the fans are variable speed fans 1, and the controller can adjust the fan input voltage according to the magnitude of the heat load, and then adjust the heat dissipation capacity of the condensation duct section 3 by changing the fan speed so as to match the heat load on the evaporator 12. The specific matching principle is that the effective heat dissipation length (two-phase condensation area) of the condensation pipe section 3 in the set heat load range is not less than a certain proportion, such as 40% -90%. Thereby ensuring that the condenser 14 tube is sufficiently activated to push liquid into the reservoir 13.
When the number of the fans is multiple, the controller is used for respectively changing the on state or the off state of the fans.
In the present embodiment, as shown in fig. 2, the number of fans is three, which are the first fan 4, the second fan 5 and the third fan 6. The controller turns on the third fan 6, the second fan 5 and the first fan 4 on the condensation section 3 in turn according to the heat load, and adjusts the heat dissipation capacity of the condensation section 3 to match the heat load on the evaporator 12. The specific matching principle is that the effective heat dissipation length (two-phase condensation area) of the condensation pipe section 3 in the set heat load range is not less than a certain proportion, such as 40% -90%. Thereby ensuring that the condenser 14 tube is sufficiently activated to push liquid into the reservoir 13.
It should be noted that the convection heat dissipation structure may be a fan, but is not limited to a fan, and may also be another convection heat dissipation structure as long as the heat dissipation of the condensation duct section 3 can be achieved by means of convection heat dissipation.
Preferably, the heat sink is a heat exchange structure.
In this embodiment, as shown in fig. 3, the heat dissipation device may also be a heat exchange structure, specifically, in this embodiment, the heat exchange structure is a refrigerator 7; the controller is connected with the refrigerating machine 7 and is used for controlling the refrigerant circulation flow of the refrigerating machine 7.
Condensing tube section 3 and cold plate 8 coupling form the heat exchanger, and forms such as refrigerator 7 are used to the outside, circulate through the refrigerant and cool off cold plate 8, cool off the cooling through cold plate 8 to condensing tube section 3 again.
Specifically, the controller adjusts the refrigerant circulation flow of the refrigerator 7 according to the magnitude of the heat load to adjust the heat dissipation capacity of the condensation pipe section 3, so that the heat dissipation capacity is matched with the heat load on the evaporator 12.
The specific matching principle is as follows: the effective heat dissipation length (two-phase condensation area) of the condensation pipe section 3 in the set heat load range is not less than a certain proportion, such as 40-90%. Thereby ensuring that the condenser tube section 3 is sufficiently activated to push liquid into the reservoir 13.
In fig. 3, the direction of the curved arrow is the direction of heat flow.
Preferably, as shown in fig. 4, the heat sink is a radiation heat dissipation structure.
Specifically, in the radiation heat dissipation structure of the present embodiment, the condensation duct section 3 is thermally coupled to the radiation plate 9, and is cooled by radiation.
Preferably, the heat sink is a radiation plate 9; the condensing pipe section 3 is formed by connecting a plurality of condensing branches 11 in parallel; a control valve 10 is arranged on the condensing branch 11, and the control valve 10 is used for controlling the passage state of the condensing branch 11; the controller is connected to the control valve 10.
Specifically, in this embodiment, the condensation pipe section 3 is divided into a plurality of parallel condensation branches 11, the partial condensation branches 11 are thermally coupled to the radiation plate 9, and the controller adjusts the number of open control valves 10 of the condensation branches 11 according to the magnitude of the thermal load, so as to adjust the heat dissipation capacity of the condenser 14, so as to match the thermal load on the evaporator 12.
The specific matching principle is as follows: the effective heat dissipation length (two-phase condensation area) of all the condensation branches 11 in the set heat load range is not less than a certain proportion, such as 40% -90%. Thereby ensuring that the condenser 14 tube is sufficiently activated to push liquid into the reservoir 13.
It should be noted that, in the present invention, the heat dissipation device may be a convection heat dissipation structure, or a heat exchange structure or a radiation heat dissipation structure, but it is not limited to the above heat dissipation forms, as long as it can realize the adjustment of different heat dissipation efficiencies of the condensation pipe section 3 by the controller.
Preferably, the condensing tube section 3 is further provided with a heat dissipation fin 2, the heat dissipation fin 2 is arranged on one side of the condensing tube section 3, and the heat dissipation fin 2 is used for increasing the heat dissipation efficiency of the condensing tube section 3.
In this embodiment, still set up radiating fin 2 on condenser pipe section 3, through radiating fin 2's setting, can make condenser pipe section 3 carry out preliminary heat dissipation by oneself, when the radiating efficiency was not enough, rethread controller control heat abstractor opened, utilized heat abstractor to carry out forced heat dissipation to condenser pipe section 3 to reach the required efficiency of heat dissipation, improved condenser 14's activation degree.
Specifically, in the present embodiment, the heat dissipation devices such as the fan or the refrigerator 7 are disposed at one end of the heat dissipation fin 2 away from the condensation duct section 3.
The invention also provides a loop heat pipe, as shown in fig. 5, which comprises any one of the variable heat radiation condensers 14.
The loop heat pipe mainly includes an evaporator 12, a condenser 14, a liquid reservoir 13, a vapor line 15, and a liquid line 16. The whole circulation process is as follows: the liquid is evaporated on the outer surface of the capillary core 17 in the evaporator 12, absorbs the heat outside the evaporator 12, the generated steam flows to the condenser 14 from the steam pipeline 15, releases the heat in the condenser 14 for heat sinking and condensing into liquid, and finally flows into the liquid storage device 13 through the liquid pipeline, and the liquid working medium in the liquid storage device 13 maintains the supply of the capillary core 17 in the evaporator 12.
The loop heat pipe of the condenser 14 with variable heat dissipation capability provided by the embodiment can be beneficial to forming saturated temperature difference and pressure difference between the condenser 14 and the liquid reservoir 13 under different heat loads and driving the working medium to flow in the forward direction; and the activation degree of the condenser 14 can be improved under the same working condition, so that redundant liquid working media are stored in the liquid storage device 13 and the liquid main channel, the heat leakage influence is reduced, and gas-liquid distribution beneficial to operation in the forward direction is formed.
Under the combined action of the two effects, the system thermal resistance of the loop heat pipe can be finally reduced, the operation stability of the loop heat pipe is improved, and the phenomena of dry burning and the like are avoided.
When the heat dissipation capacity of the condenser is matched with the heat load, the condenser can be activated to the maximum extent, the liquid working medium can be pushed to the liquid storage device and the liquid main channel, the higher the liquid containing rate of the liquid storage device and the liquid main channel is, the more the liquid main channel tends to be filled with liquid, and the heat leakage is very small at the moment due to the low heat conductivity coefficient of the liquid.
When the heat dissipation capacity of the condenser is not matched with the heat load and is greater than the heat load, the condenser is not activated to the maximum extent, liquid exists in the condenser, the liquid containing rate of the liquid storage device and the liquid main channel is low, steam exists in the liquid main channel at the moment, heat leakage of the evaporator to the liquid storage device is heat pipe type evaporation and condensation two-phase heat exchange, and the heat leakage amount is extremely large.
Therefore, the beneficial effects of the invention are as follows:
the heat dissipation efficiency is changed through the controller, the activation degree of the condenser 14 can be improved, redundant liquid working media can be stored in the liquid storage device 13 and the liquid main channel, the heat leakage influence is reduced, gas-liquid distribution beneficial to operation in the forward direction is formed, the system thermal resistance of the loop heat pipe can be finally reduced, the operation stability of the loop heat pipe is improved, and the phenomena of dry burning and the like are avoided.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A variable heat radiation condenser is characterized by comprising a condensation pipe section, a controller and a heat radiation device;
the heat dissipation device is arranged on one side of the condensation pipe section and used for dissipating heat of the condensation pipe section;
the controller is connected with the heat dissipation device and used for controlling the heat dissipation efficiency of the heat dissipation device.
2. A variable heat rejection condenser as set forth in claim 1 wherein said heat rejection means is a convective heat rejection structure.
3. A variable heat rejection condenser as set forth in claim 2 wherein said convective heat rejection structure includes at least one fan.
4. The variable heat rejection condenser of claim 3, wherein when the number of the fans is one, the controller is configured to control a rotation speed of the fans;
when the number of the fans is multiple, the controller is used for respectively changing the on-off state of the fans.
5. A variable heat rejection condenser as set forth in claim 1 wherein said heat rejection means is a heat exchange structure.
6. The variable heat rejection condenser of claim 5 wherein said heat exchange structure is a refrigerator;
the controller is connected with the refrigerating machine and used for controlling the refrigerant circulation flow of the refrigerating machine.
7. A variable heat rejection condenser as set forth in claim 1 wherein said heat rejection means is a radiant heat rejection structure.
8. The variable heat rejection condenser of claim 7 wherein said heat rejection device is a radiant panel;
the condensation pipe section is formed by connecting a plurality of condensation branches in parallel;
the condensing branch is provided with a control valve which is used for controlling the passage state of the condensing branch;
the controller is connected with the control valve.
9. The variable heat radiation condenser of claim 1, wherein the condensation pipe section is further provided with a heat radiation fin, the heat radiation fin is arranged on one side of the condensation pipe section, and the heat radiation fin is used for increasing the heat radiation efficiency of the condensation pipe section.
10. A loop heat pipe comprising the variable heat radiation condenser according to any one of claims 1 to 9.
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| CN202010980945.XA CN112050674A (en) | 2020-09-17 | 2020-09-17 | Variable heat dissipation condenser and loop heat pipe |
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| CN114217679A (en) * | 2021-11-29 | 2022-03-22 | 北京微焓科技有限公司 | Heat dissipation system and case |
| CN114370779A (en) * | 2022-01-25 | 2022-04-19 | 山东大学 | Loop heat pipe with multipoint heat dissipation function |
| CN116738639A (en) * | 2023-07-24 | 2023-09-12 | 哈尔滨工程大学 | Loop heat pipe radiation radiating fin structure optimization design method and device |
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Application publication date: 20201208 |
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