A combined radiator

Abstract

This application belongs to the field of heat dissipation technology and discloses a combined radiator. This combined radiator is used to dissipate heat from a heat source within a device comprising a first accommodating space and a second accommodating space. It includes a main evaporator, a condenser, a secondary evaporator, a compensator, and a condenser. The main evaporator, condenser, secondary evaporator, and compensator are all located within the first accommodating space. The condenser is located in the second accommodating space and is connected to the main evaporator via a main gas pipeline and to the compensator via a liquid pipeline. The working fluid in the secondary evaporator is discharged from the secondary gas outlet via the secondary gas pipeline. This application, by adding a secondary evaporator and a secondary gas pipeline, makes the working fluid flow distribution closer to a preset ratio, thereby helping to achieve the design intent of the combined radiator, namely, facilitating the matching of the working fluid flow through the condenser and condenser with the target heat dissipation of the first and second accommodating spaces, and improving the overall heat dissipation efficiency.

Description

Technical Field

[0001] This application relates to the field of heat dissipation technology, specifically to a combined heat sink. Background Technology

[0002] With technological advancements, the demand for heat dissipation is increasing across various fields (especially the computer industry). Against this backdrop, heat sinks are facing challenges. One key challenge in the field of heat dissipation technology is achieving the desired heat dissipation within limited space in compact devices.

[0003] Most commercially available heat sinks are installed within the following space provided by the equipment: a fixed space extending a fixed distance away from the heat source, with the heat sink contact surface on the heat source as the reference plane. This fixed space naturally has a peak heat dissipation capacity. Based on this, the layout within the equipment is adjusted to leave other spaces at a certain distance from this fixed space. Heat sinks that can effectively utilize both this fixed space and these other spaces have become a new research direction in the field of heat sinks.

[0004] To fully utilize this additional space, either existing components of the radiator must be extended into that space, or new heat dissipation components must be added. In related technological explorations, given the ability of loop heat pipes to be spaced out, the industry has attempted to combine them with mainstream traditional radiators on the market to obtain combined radiators (such as the solution disclosed in patent CN118524669A).

[0005] However, new problems have arisen in the actual use of combined radiators:

[0006] The design intent of the combined radiator is to fully utilize the fixed space and other available spaces. During the design phase, the target heat dissipation is used as a benchmark, combining the heat dissipation capacity of the traditional radiator's condenser components in the fixed space environment and the heat dissipation capacity of the loop heat pipe condenser in the other space environments to allocate heat dissipation. This ensures that the traditional radiator's condenser components can efficiently exchange heat with the environment in the fixed space, and the loop heat pipe condenser can efficiently exchange heat with the environment in the other spaces, thereby improving the overall heat dissipation efficiency. Under the expected normal operating conditions, both the traditional radiator's condenser components and the loop heat pipe condenser maintain a high temperature and exhibit good temperature uniformity.

[0007] However, in actual use, the condenser components in traditional radiators have a low temperature, which means that the fixed space cannot be effectively utilized and the overall heat dissipation efficiency cannot be improved.

[0008] This section provides background information related to this application, which is not necessarily prior art. Utility Model Content

[0009] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide a modular radiator designed to help achieve the intended design goals of a modular radiator.

[0010] To achieve the above objectives, this application adopts the following technical solution:

[0011] In a first aspect, this application provides a combined heat sink for dissipating heat from a heat source within a device including a first accommodating space and a second accommodating space, comprising:

[0012] A main evaporator is disposed in the first accommodating space. The main evaporator includes a main evaporator shell and a main capillary wick. The main evaporator shell is hollow to form a main evaporation chamber. The main evaporator shell has a first main vapor outlet, a second main vapor outlet, and a first connecting port that are connected to the main evaporation chamber. The main capillary wick is disposed in the main evaporation chamber, and the main capillary wick does not cover the first main vapor outlet and the second main vapor outlet, but covers the first connecting port.

[0013] A condenser is disposed in the first accommodating space; the condenser has a first working fluid flow channel inside, and one end of the condenser is connected to the first main gas outlet;

[0014] A secondary evaporator is disposed in the first accommodating space. The secondary evaporator includes a secondary evaporator shell and a secondary capillary wick. The interior of the secondary evaporator shell is hollow to form a secondary evaporation chamber. The secondary evaporator shell has a secondary gas outlet, a first connection port, and a second connection port that communicate with the secondary evaporation chamber. The secondary capillary wick is disposed in the secondary evaporation chamber and is not covered by the secondary gas outlet but is covered by the second connection port. The first connection port is connected to the first communication port.

[0015] A compensator is disposed in the first accommodating space. The compensator includes a compensator housing, the compensator housing is hollow to form a compensation cavity, the compensator housing has a second communication port and a liquid inlet communicating with the compensation cavity; the compensator housing is connected to the second communication port.

[0016] A condenser is disposed in a second accommodating space. The condenser has a second working fluid flow channel. The first end of the condenser is connected to the second main steam outlet through a main steam pipeline, and the second end of the condenser is connected to the liquid inlet through a liquid pipeline.

[0017] The gaseous working fluid in the secondary evaporator is discharged from the secondary gas outlet through the secondary gas pipeline, and the liquid working fluid obtained by condensing the discharged gaseous working fluid finally enters the compensation chamber.

[0018] As an alternative to the combined radiator, the other end of the condenser tube is sealed.

[0019] As an alternative to the combined radiator, the main evaporator housing has a third communication port, the main capillary wick is covered by the third communication port, and the other end of the condenser tube is connected to the third communication port.

[0020] As an alternative to the combined radiator, the combined radiator further includes a first fin, which contacts the condenser tube; and / or

[0021] The combined radiator also includes a second fin, which contacts the condenser.

[0022] As an alternative to the combined radiator, the number of the second accommodating spaces is one or more, and at least one of the second accommodating spaces is provided with the condenser.

[0023] As an alternative to the combined radiator, the condenser also has a third working fluid flow channel, and the third end of the condenser is connected to the secondary gas outlet through a secondary gas pipeline.

[0024] As an alternative to the combined heat sink, the second working fluid channel is connected to the third working fluid channel; or the second working fluid channel is not connected to the third working fluid channel.

[0025] As an optional embodiment of the combined radiator, the combined radiator further includes a secondary condenser, which has a third working fluid flow channel; the first end of the secondary condenser is connected to the secondary gas outlet, and the second end of the secondary condenser is connected to the liquid inlet.

[0026] As an optional solution for the combined radiator, the first connecting port and the first connection port are directly connected or connected through a branch pipe.

[0027] As an optional solution for the combined radiator, the second connection port is directly connected to the second communication port or connected through a branch pipe.

[0028] The beneficial effects of this application are as follows:

[0029] The combined radiator provided in this application is used to dissipate heat from a heat source within an equipment comprising a first accommodating space and a second accommodating space. It includes a main evaporator, a condenser, a secondary evaporator, a compensator, and a condenser. The main evaporator is located in the first accommodating space, as are the condenser, secondary evaporator, and compensator. The condenser is located in the second accommodating space and is connected to the main evaporator via a main gas pipeline and to the compensator via a liquid pipeline. The working fluid in the secondary evaporator is discharged from the secondary gas outlet via the secondary gas pipeline. By adding a secondary evaporator and a secondary gas pipeline, this application makes the working fluid flow distribution closer to a preset ratio, thereby helping to achieve the design intent of the combined radiator, namely, facilitating the matching of the working fluid flow through the condenser and condenser with the target heat dissipation of the first and second accommodating spaces, and improving the overall heat dissipation efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this application and these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram showing the arrangement of the combined radiator and heat source inside the device according to an embodiment of this application.

[0032] Figure 2 This is a schematic diagram of a combined heat sink, which is the first example provided in the embodiments of this application.

[0033] Figure 3 This is a schematic diagram of a combined heat sink, which is a second example provided in the embodiments of this application.

[0034] Figure 4 This is a cross-sectional schematic diagram of a first example of a combined heat sink disposed within a first accommodating space, as provided in the embodiments of this application.

[0035] Figure 5 This is a cross-sectional schematic diagram of a second example of a combined heat sink disposed within a first accommodating space, as provided in the embodiments of this application.

[0036] Figure 6 This is a cross-sectional schematic diagram of a third example of a combined heat sink disposed within a first accommodating space, as provided in the embodiments of this application.

[0037] Figure 7 This is a schematic diagram of a finned combined heat sink provided in an embodiment of this application.

[0038] Figure label:

[0039] 100. Heat source; 101. First accommodating space; 102. Second accommodating space;

[0040] 1. Main evaporator; 11. Main evaporator shell; 110. Main evaporation chamber; 111. First main steam outlet; 112. Second main steam outlet; 113. First connecting port; 114. Third connecting port; 12. Main capillary wick;

[0041] 2. Condenser; 21. One end; 22. The other end;

[0042] 3. Secondary evaporator; 31. Secondary evaporator shell; 310. Secondary evaporation chamber; 311. Secondary gas outlet; 312. First connection port; 313. Secondary connection port; 32. Secondary capillary wick;

[0043] 4. Compensator; 41. Compensator housing; 410. Compensation chamber; 411. Second connecting port; 412. Liquid inlet;

[0044] 5. Condenser; 51. First end; 52. Second end; 53. Third end;

[0045] 6. Main steam pipeline;

[0046] 7. Liquid pipelines;

[0047] 8. Secondary gas pipeline;

[0048] 91. First fin; 92. Second fin. Detailed Implementation

[0049] like Figures 1 to 3 As shown, this application provides a combined heat sink for dissipating heat from a heat source 100 inside a device. The applicable device includes a first accommodating space 101 and a second accommodating space 102. The first accommodating space 101 is the fixed space mentioned in the aforementioned background art, that is, the first accommodating space 101 is a fixed space that extends a fixed distance away from the heat source 100 with the heat sink contact surface on the heat source 100 as the reference surface. The second accommodating space 102 is the other space mentioned in the aforementioned background art, that is, the second accommodating space 102 is another space that is a distance away from the first accommodating space 101.

[0050] The combined radiator provided in this application includes a main evaporator 1, a condenser 2, a secondary evaporator 3, a compensator 4, and a condenser 5. The main evaporator 1 is in contact with the heat source 100, that is, the aforementioned "radiator contact surface on the heat source 100" is formed by the contact between the main evaporator 1 and the heat source 100. Therefore, the main evaporator 1 is located in the first accommodating space 101. The condenser 2, the secondary evaporator 3, and the compensator 4 are located in the first accommodating space 101. The condenser 5 is located in the second accommodating space 102 and is connected to the main evaporator 1 through the main gas pipeline 6, connected to the compensator 4 through the liquid pipeline 7, and connected to the secondary evaporator 3 through the secondary gas pipeline 8.

[0051] In this combined radiator, the main evaporator 1 and the condenser 2 work together to form the first heat dissipation module, which utilizes the first accommodating space 101; the main evaporator 1, the secondary evaporator 3, the compensator 4, the condenser 5, the main gas pipeline 6, the liquid pipeline 7, and the secondary gas pipeline 8 work together to form the second heat dissipation module, which utilizes the second accommodating space 102.

[0052] It should be added here that, Figures 1 to 3 The secondary gas pipeline 8 shown is connected to the secondary evaporator 3 at one end and the condenser 5 at the other end. However, the latter is not necessarily required in practice. That is, the second heat dissipation module of the combined radiator may also include other components that cooperate with the secondary gas pipeline 8.

[0053] It is worth noting that the sharing of the main evaporator 1 between the first and second heat dissipation modules is a special and necessary design for the combined radiator to achieve its design objectives: the gaseous working fluid in the main evaporator 1 undergoes thorough mixing and heat exchange before entering the condenser tube 2 and the main gas pipeline 6 to achieve thermal equilibrium, ensuring that the heat content per unit volume or unit mass of the gaseous working fluid entering the condenser tube 2 and the main gas pipeline 6 is consistent. Without this arrangement, unless the heat source 100 in contact with the main evaporator 1 is a uniformly exothermic body, it would be almost impossible for the heat content of the gaseous working fluid entering the condenser tube 2 and the main gas pipeline 6 to remain consistent.

[0054] In some embodiments, the number of second accommodating spaces 102 is not limited to Figures 1 to 3 The example shown can be of one or more condensers 5, with at least one condenser 5 housed within a second accommodating space 102. It should be noted that the number of condensers 5 that can be housed in a single second accommodating space 102 is not limited. Figures 1 to 3 The display can show one or more, and the specific arrangement can be based on actual needs. Examples will not be provided here.

[0055] like Figure 4 Combination Figure 2As shown, the main evaporator 1 includes a main evaporator shell 11 and a main capillary wick 12. The main evaporator shell 11 is hollow, forming a main evaporation chamber 110. The main evaporator shell 11 has a first main vapor outlet 111, a second main vapor outlet 112, a first connecting port 113, and a third connecting port 114 that are connected to the main evaporation chamber 110. The main capillary wick 12 is disposed in the main evaporation chamber 110, but it is not covered by the first main vapor outlet 111 and the second main vapor outlet 112, nor by the first connecting port 113 and the third connecting port 114. Since the main capillary wick 12 only allows liquid working fluid to pass through and not gaseous working fluid, the gaseous working fluid in the main evaporation chamber 110 will be discharged from the first main vapor outlet 111 and the second main vapor outlet 112 that are not covered by the main capillary wick 12.

[0056] The condenser tube 2 has a first working fluid flow channel, and one end 21 of the condenser tube 2 is connected to the first main steam outlet 111, and in Figure 2 and Figure 4 The other end 22 of the intermediate condenser tube 2 is connected to the third connecting port 114. Therefore, the gaseous working fluid in the main evaporation chamber 110 enters the first working fluid flow channel of the condenser tube 2 through the first main gas outlet 111 and one end 21 of the condenser tube 2, where it is condensed. The liquid working fluid obtained by condensation flows back to the main capillary wick 12 through the other end 22 and the third connecting port 114 of the condenser tube 2 along the first working fluid flow channel, so as to absorb heat and vaporize in the main evaporation chamber 110.

[0057] The secondary evaporator 3 includes a secondary evaporator shell 31 and a secondary capillary 32. The secondary evaporator shell 31 is hollow to form a secondary evaporation chamber 310. The secondary evaporator shell 31 has a secondary gas outlet 311, a first connection port 312, and a second connection port 313 that communicate with the secondary evaporation chamber 310. The secondary capillary 32 is disposed in the secondary evaporation chamber 310, but is not covered by the secondary gas outlet 311 and is covered by the second connection port 313. Since the secondary capillary 32 only allows liquid working fluid to pass through and does not allow gas working fluid to pass through, the gas working fluid in the secondary evaporation chamber 310 will be discharged from the secondary gas outlet 311 that is not covered by the secondary capillary 32.

[0058] The first connection port 312 is connected to the first communication port 113. This connection method allows the secondary evaporator 3 to intervene in the heat transfer path between the main evaporator 1 and the compensator 4, which is a key step in blocking the heat leakage from the main evaporator 1 to the compensator 4. Specifically, when there is a temperature difference between the main evaporator 1 and the compensator 4, causing heat to leak to the compensator 4, since the secondary evaporator 3 is connected to the main evaporator 1 through the first connection port 312 and the first communication port 113, the heat will be conducted to the secondary evaporator 3 before reaching the compensator 4 and absorbed and vaporized by the liquid working medium in the secondary capillary wick 32, and then converted into the heat contained in the gas working medium in the secondary evaporation chamber 310.

[0059] In addition, the working gas in the secondary evaporation chamber 310 will be discharged from the secondary gas outlet 311 through the secondary gas pipeline 8, completing the directional transfer of the heat contained in the working gas, avoiding its retention in the system and the re-formation of heat leakage to the compensator 4.

[0060] Thus, the secondary evaporator 3, through the absorption and conversion of heat leakage, combined with the directional transfer of the converted heat by the secondary gas pipeline 8, together constitute a complete heat leakage blocking mechanism from the main evaporator 1 to the compensator 4, thereby weakening the interference of heat leakage on the thermal balance of the compensator 4.

[0061] It is worth mentioning here that the inventive point of this application lies in the addition of a secondary evaporator 3 and a secondary gas pipeline 8 to help achieve the design intent of the combined radiator. How this technical effect is achieved will be explained in detail in the following description.

[0062] The compensator 4 includes a compensator housing 41, the interior of which is hollow to form a compensation cavity 410. The compensator housing 41 has a second communication port 411 and a liquid inlet 412 that communicate with the compensation cavity 410. The compensator housing 41 is connected to a second connection port 313, in which case the second communication port 411 is connected to the second connection port 313.

[0063] The condenser 5 has a second working fluid flow channel. The first end 51 of the condenser 5 is connected to the second main steam outlet 112 through the main steam pipeline 6, and the second end 52 of the condenser 5 is connected to the liquid inlet 412 through the liquid pipeline 7. Therefore, the gaseous working fluid in the main evaporation chamber 110 enters the second working fluid flow channel of the condenser 5 through the second main steam outlet 112, the main steam pipeline 6, and the first end 51 of the condenser 5. It is condensed in the second working fluid flow channel. The condensed liquid working fluid flows back to the compensation chamber 410 along the second working fluid flow channel through the second end 52 of the condenser 5, the liquid pipeline 7, and the liquid inlet 412. Finally, it permeates to the secondary capillary wick 32 to absorb heat and vaporize in the secondary evaporation chamber 310, or it permeates to the main capillary wick 12 to absorb heat and vaporize in the main evaporation chamber 110.

[0064] The design logic of the combined radiator is as follows: Based on the heat dissipation distribution mentioned in the background technology, since the working fluid transfers heat through phase change in the combined radiator, and the heat it carries is approximately positively correlated with the flow rate (under the premise that the working fluid type and phase change conditions are stable), the working fluid flow distribution can be derived; the working fluid flow distribution needs to be guaranteed by flow resistance design, which can be achieved by adjusting the pipe diameter, pipe length, etc.

[0065] The improved combined radiator in this application also follows the above design logic. In other words, the flow resistance of the working gas in the condenser tube 2 and the total flow resistance of the working gas in the flow path formed by the gas pipeline 6, condenser 5, and liquid pipeline 7 are designed to ensure that the working gas flow distribution between the working gas in the main evaporation chamber 110 led out from the first main gas outlet 111 through the condenser tube 2 and the working gas in the main evaporation chamber 110 led out from the second main gas outlet 112 through the main gas pipeline 6 will be accurately carried out according to the preset ratio, so that the working gas flow through the condenser tube 2 and condenser 5 matches the target heat dissipation of the first accommodating space 101 and the second accommodating space 102.

[0066] The applicant, through analysis and verification, discovered that the problem of "the low temperature of the condensing components in traditional radiators, resulting in the ineffective utilization of the fixed space and the inability to improve the overall heat dissipation efficiency" stems from the dynamic heat leakage caused by changes in the heat source's temperature, which undermines the flow resistance design's guarantee of working fluid flow distribution. Specifically, heat leakage from the main evaporator 1 to the compensator 4 interferes with the compensator 4's thermal balance. This requires the subcooling of the liquid working fluid condensed in the condenser 5 to offset the heat leakage and maintain the compensator 4's thermal balance. When heat leakage increases, the subcooling section of the condenser 5 needs to be extended to provide greater subcooling, resulting in a corresponding shortening of the condensing section of the condenser 5. At this time, the increased condensation rate causes a decrease in pressure at the first end 51 of the condenser 5, and the pressure in the main steam pipeline 6 decreases accordingly. Consequently, the working fluid that should have been discharged from the first main steam outlet 111 through the condenser pipe 2 according to the working fluid flow distribution will be discharged more from the second main steam outlet 112 through the main steam pipeline 6 under the influence of the pressure difference, resulting in the working fluid flow distribution not being accurately performed according to the preset ratio.

[0067] This application, by adding a secondary evaporator 3 and a secondary gas pipeline 8, effectively reduces the interference of heat leakage on the thermal balance of the compensator 4. That is, regardless of the original large fluctuations in dynamic heat leakage, after absorption and conversion by the secondary evaporator 3 and directional transfer by the secondary gas pipeline 8, the actual heat leakage transferred to the compensator 4 is relatively stable. Therefore, the increase in the subcooling section is reduced, the decrease in the condensing section is correspondingly reduced, and the fluctuation of the condensation rate is suppressed. This significantly reduces the pressure drop at the first end 51 of the condenser 5, and simultaneously weakens the pressure drop within the main gas pipeline 6. Ultimately, the increase in the working fluid in the main evaporation chamber 110 caused by the pressure difference, which is discharged from the second main gas outlet 112 through the main gas pipeline 6, is effectively controlled. This makes the working fluid flow distribution closer to the preset ratio, thereby helping to achieve the design intent of the combined radiator, namely, facilitating "matching the working fluid flow through the condenser tube 2 and condenser 5 with the target heat dissipation of the first accommodating space 101 and the second accommodating space 102," and facilitating "improvement of overall heat dissipation efficiency."

[0068] It is worth noting that, Figures 1 to 3 The diagram shows how the secondary gas pipeline 8 transfers the gaseous working fluid in the secondary evaporation chamber 310 to the condenser 5 for condensation. The condenser 5 also has a third working fluid channel. The third end 53 of the condenser 5 is connected to the secondary gas outlet 311 via the secondary gas pipeline 8, and the second and third working fluid channels are not connected at this time. Therefore, the gaseous working fluid in the secondary evaporation chamber 310 enters the third working fluid channel of the condenser 5 through the secondary gas outlet 311 and the third end 53, where it undergoes condensation. The resulting liquid working fluid flows back to the compensation chamber 410 along the third working fluid channel through the second end 52 of the condenser 5, the liquid pipeline 7, and the liquid inlet 412. Finally, it permeates to the secondary capillary 32 for further heat absorption and vaporization in the secondary evaporation chamber 310, or finally permeates to the main capillary 12 for further heat absorption and vaporization in the main evaporation chamber 110.

[0069] Regarding the secondary gas pipeline 8, there are no restrictions on the other port of the secondary gas pipeline 8. It is only necessary to ensure that one port of the secondary gas pipeline 8 is connected to the secondary gas outlet 311 to discharge the gaseous working fluid in the secondary evaporation chamber 310, and that the liquid working fluid obtained by condensing the discharged gaseous working fluid finally enters the compensation chamber 410. Figures 1 to 3 The example shown is only one possible implementation. Several other parallel implementations are provided below.

[0070] In the second embodiment (not shown in the accompanying drawings), the condenser 5 also has a third working fluid flow channel. The third end 53 of the condenser 5 is connected to the secondary gas outlet 311 via the secondary gas pipeline 8, and the second working fluid flow channel is connected to the third working fluid flow channel. Therefore, the gaseous working fluid in the secondary evaporation chamber 310 enters the third working fluid flow channel of the condenser 5 through the secondary gas outlet 311 and the third end 53 of the condenser 5, and is condensed in the third working fluid flow channel (and / or the latter half of the second working fluid flow channel). The condensed liquid working fluid flows back to the compensation chamber 410 along the third working fluid flow channel (and / or the latter half of the second working fluid flow channel) through the second end of the condenser 5, the liquid pipeline 7, and the liquid inlet 412, and finally permeates to the secondary capillary 32 for subsequent heat absorption and vaporization in the secondary evaporation chamber 310, or finally permeates to the main capillary 12 for subsequent heat absorption and vaporization in the main evaporation chamber 110.

[0071] In the third embodiment (not shown in the accompanying drawings), the combined radiator further includes a secondary gas pipeline 8 and a secondary condenser. The secondary condenser has a third working fluid channel. The first end of the secondary condenser is connected to the secondary gas outlet 311 via the secondary gas pipeline 8, and the second end of the secondary condenser is connected to the liquid inlet 412. Therefore, the gaseous working fluid in the secondary evaporation chamber 310 enters the third working fluid channel of the secondary evaporator 3 through the secondary gas outlet 311, the secondary gas pipeline 8, and the first end of the secondary condenser. It is condensed in the third working fluid channel, and the condensed liquid working fluid flows back to the compensation chamber 410 along the third working fluid channel through the second end of the secondary evaporator 3 and the liquid inlet 412. Finally, it permeates to the secondary capillary 32 to continue heat absorption and vaporization in the secondary evaporation chamber 310, or finally permeates to the main capillary 12 to continue heat absorption and vaporization in the main evaporation chamber 110.

[0072] Regarding condenser 2, in another embodiment, such as Figure 5 Combination Figure 3 As shown, Figure 3 and Figure 5 The other end 22 of the condenser tube 2 shown is closed. Therefore, the gaseous working fluid in the main evaporation chamber 110 enters the first working fluid flow channel of the condenser tube 2 through the first main gas outlet 111 and one end 21 of the condenser tube 2, where it is condensed. The liquid working fluid obtained by condensation flows back to the main capillary wick 12 through one end 21 of the condenser tube 2 and the first main gas outlet 111 along the first working fluid flow channel, so as to absorb heat and vaporize in the main evaporation chamber 110.

[0073] It is worth noting that the other end 22 of the condenser tube 2 is connected to or closed by the third connecting port 114, which affects the specific flow direction in the first working fluid channel of the condenser tube 2. Figure 2 and Figure 4 The flow direction of the gaseous working fluid in the first working fluid channel is the same as the flow direction of the condensed liquid working fluid in the first working fluid channel. Figure 3 and Figure 5 The flow direction of the gaseous working fluid in the first working fluid channel is opposite to that of the liquid working fluid obtained from condensation in the first working fluid channel.

[0074] Furthermore, the first connecting port 113 and the first connecting port 312 are directly connected or connected through a branch pipe, for example, Figure 4 and Figure 5 For direct connection, Figure 6 For connection via branch pipe;

[0075] Depend on Figure 6 contrast Figure 4 , Figure 5It is easy to see that when the first connecting port 113 and the first connecting port 312 are connected by a branch pipe, the range of the first connecting port 113 is reduced, which reduces the surface area of ​​the main capillary wick 12 near the secondary evaporation chamber 310 at the first connecting port 113; at the same time, it increases the range of the main evaporator shell 11 and the secondary evaporator shell 31 in the direction perpendicular to the branch pipe setting direction, and increases the heat conduction path that the heat leakage must take. Through these two aspects, the heat leakage from the main evaporator 1 to the compensator 4 is reduced.

[0076] The second connection port 313 is directly connected to the second communication port 411 or connected through a branch pipe, for example... Figures 4 to 6 For direct connection, the second connection port 313 and the second communication port 411 can also achieve the above-mentioned effect when connected through a branch pipe, which will not be elaborated here.

[0077] Furthermore, such as Figure 7 As shown, the combined radiator also includes a first fin 91, which contacts the condenser tube 2 to cool and condense the gaseous working fluid inside the condenser tube 2. The combined radiator also includes a second fin 92, which contacts the condenser 5 to cool and condense the gaseous working fluid inside the condenser 5.

[0078] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. A combination heat sink for dissipating heat from a heat source (100) in an apparatus comprising a first accommodation space (101) and a second accommodation space (102), characterized in that, The application relates to a refrigeration system, which comprises the following components: a main evaporator (1) arranged in a first accommodating space (101), wherein the main evaporator (1) comprises a main evaporator shell (11) and a main capillary core (12), the main evaporator shell (11) is internally hollow to form a main evaporation cavity (110), the main evaporator shell (11) is provided with a first main gas outlet (111), a second main gas outlet (112) and a first communication port (113) which are in communication with the main evaporation cavity (110), and the main capillary core (12) is arranged in the main evaporation cavity (110) and is not arranged on the first main gas outlet (111) and the second main gas outlet (112) but is arranged on the first communication port (113); a condenser pipe (2) arranged in the first accommodating space (101), wherein the condenser pipe (2) is internally provided with a first working medium flow channel, and one end (21) of the condenser pipe (2) is connected with the first main gas outlet (111); a secondary evaporator (3) arranged in the first accommodating space (101), wherein the secondary evaporator (3) comprises a secondary evaporator shell (31) and a secondary capillary core (32), the secondary evaporator shell (31) is internally hollow to form a secondary evaporation cavity (310), the secondary evaporator shell (31) is provided with a secondary gas outlet (311), a first connecting port (312) and a second connecting port (313) which are in communication with the secondary evaporation cavity (310), and the secondary capillary core (32) is arranged in the secondary evaporation cavity (310) and is not arranged on the secondary gas outlet (311) but is arranged on the second connecting port (313), and the first connecting port (312) is connected with the first communication port (113); a compensator (4) arranged in the first accommodating space (101), wherein the compensator (4) comprises a compensator shell (41), the compensator shell (41) is internally hollow to form a compensation cavity (410), the compensator shell (41) is provided with a second communication port (411) and a liquid inlet (412) which are in communication with the compensation cavity (410), and the compensator shell (41) is connected with the second connecting port (313); a condenser (5) arranged in a second accommodating space (102), wherein the condenser (5) is internally provided with a second working medium flow channel, a first end (51) of the condenser (5) is connected with the second main gas outlet (112) through a main gas pipeline (6), and a second end (52) of the condenser (5) is connected with the liquid inlet (412) through a liquid pipeline (7); the gaseous working medium in the secondary evaporator (3) is led out from the secondary gas outlet (311) through a secondary gas pipeline (8), and the liquid working medium obtained by condensing the gaseous working medium is finally introduced into the compensation cavity (410).

2. The combination heat sink of claim 1, wherein the other end (22) of the condenser pipe (2) is closed.

3. The combination heat sink of claim 1, wherein The main evaporator shell (11) has a third communication port (114), the main capillary core (12) is covered on the third communication port (114), and the other end (22) of the condenser pipe (2) is connected with the third communication port (114).

4. The combination heat sink of claim 1, wherein The combined radiator further comprises a first fin (91) in contact with the condenser pipe (2); and / or The combined radiator further comprises a second fin (92) in contact with the condenser (5).

5. The combination heat sink of claim 1, wherein The number of the second accommodating spaces (102) is one or more, and at least one of the second accommodating spaces (102) is provided with the condenser (5).

6. The combination heat sink of any one of claims 1-5, wherein, The condenser (5) further has a third working medium flow channel, and a third end (53) of the condenser (5) is connected with the secondary vapor outlet (311) through a secondary vapor pipeline (8).

7. The combination heat sink of claim 6, wherein, The second working medium flow channel is in communication with the third working medium flow channel, or the second working medium flow channel is not in communication with the third working medium flow channel.

8. The combination heat sink of any one of claims 1-5, wherein, The combined radiator further comprises a secondary condenser, the secondary condenser has a third working medium flow channel, a first end of the secondary condenser is connected with the secondary vapor outlet (311), and a second end of the secondary condenser is connected with the liquid inlet (412).

9. The combination heat sink of any of claims 1-5, wherein, The first communication port (113) and the first connection port (312) are directly connected or connected through a branch pipe.

10. The combination heat spreader of any of claims 1-5, wherein, The second connection port (313) and the second communication port (411) are directly connected or connected through a branch pipe.

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