Double heat dissipation structure of air cooler and air cooler

Abstract

The present invention discloses a dual heat dissipation structure of an air cooler and an air cooler, wherein the dual heat dissipation structure of the air cooler comprises a first heat dissipation body, a heat generating body, a heat dissipation body and a second heat dissipation body, wherein the first heat dissipation body is provided with a cavity for storing a heat dissipation medium; the heat generating body is at least partially in contact with the heat dissipation medium; an air collecting cavity is provided between the heat dissipation body and the first heat dissipation body, and the heat dissipation body is also provided with a heat dissipation hole connected to the air collecting cavity; the second heat dissipation body is located between the heat dissipation body and the first heat dissipation body. The technical solution of the present invention is simple and convenient to operate, has a dual heat dissipation function, has better heat dissipation efficiency and is more practical.

Description

Technical Field

[0001] The invention relates to the technical field of air coolers, and in particular to a double heat dissipation structure of an air cooler and the air cooler. Background Art

[0002] Air coolers are divided into industrial air coolers and household air coolers. Industrial air coolers are generally used in cold storage and cold chain logistics refrigeration environments. Household air coolers are also called water-cooled air conditioners. They are evaporative cooling and ventilation units that integrate cooling, ventilation, dust prevention, and deodorization. The cooling principle is: when the fan is running, it enters the cavity to generate negative pressure, so that the air outside the machine flows through the porous wet curtain surface, forcing the dry bulb temperature of the air passing through the curtain to drop to a temperature close to the wet bulb temperature of the air outside the machine, that is, the dry bulb temperature at the outlet of the air cooler is 5-12℃ lower than the outdoor dry bulb temperature (up to 15℃ in dry and hot areas). The drier and hotter the air, the greater the temperature difference and the better the cooling effect.

[0003] However, most of the existing air coolers have a simple internal heat dissipation structure, poor heat dissipation speed and effect, and cannot be used for a longer period of time. Summary of the invention

[0004] The main purpose of the present invention is to provide a dual heat dissipation structure of an air cooler and an air cooler, aiming to improve the heat dissipation effect and the use efficiency through the dual heat dissipation function.

[0005] The above-mentioned problem to be solved by the present invention is achieved through the following technical solutions:

[0006] A dual heat dissipation structure of an air cooler, comprising a first heat dissipation body, a heat generating body, a heat dissipation body, and a second heat dissipation body, wherein a cavity for storing a heat dissipation medium is provided inside the first heat dissipation body; the heat generating body is at least partially in contact with the heat dissipation medium; an air collecting cavity is provided between the heat dissipation body and the first heat dissipation body, and the heat dissipation body is further provided with a heat dissipation hole connected with the air collecting cavity; the second heat dissipation body is located between the heat dissipation body and the first heat dissipation body;

[0007] In the working state, the heat generating body and the heat dissipation medium exchange heat, the heat dissipation medium flows to dissipate heat for the first time, the heat dissipation medium flows through the second heat dissipation body for the second time, and then circulates back to the first heat dissipation body, so that hot air is formed in the gas collection cavity, and then discharged and diffused through the heat dissipation body.

[0008] Preferably, the heat dissipation medium is water medium or cold air medium.

[0009] Preferably, the heat dissipation body is located above the first heat dissipation body, the second heat dissipation body is fixed on the first heat dissipation body, and the second heat dissipation body is perpendicular or parallel to the plane where the height direction of the accommodating cavity is located.

[0010] Preferably, the heat generating body comprises a heat generating component and a heat exchanger, the heat generating component is fixed on the supporting top plate at the upper end of the first heat sink, the heat generating component is connected to the heat exchanger through a delivery pipe group, and the heat exchanger is located inside the accommodating cavity and in contact with the heat dissipation medium;

[0011] And / or a partition inner plate is provided inside the first heat sink, the partition inner plate divides the accommodating cavity into a first accommodating cavity and a second accommodating cavity; the partition inner plate passes through the heat exchanger to split the heat exchanger into a left branch of the heat exchanger and a right branch of the heat exchanger, the left branch of the heat exchanger is located in the first accommodating cavity, the right branch of the heat exchanger is located in the second accommodating cavity, and the left branch of the heat exchanger and the right branch of the heat exchanger are connected to each other, and the first accommodating cavity and the second accommodating cavity are connected to each other.

[0012] Preferably, a medium spraying component is disposed in the accommodating cavity, and the medium spraying component can transport the heat dissipation medium to the second heat dissipation body so that the heat dissipation medium contacts with the second heat dissipation body to dissipate heat.

[0013] Preferably, the second heat sink comprises a wet curtain, and the wet curtain is located in the air collecting cavity.

[0014] Preferably, a drive installation slot is provided in the heat exhaust body, and the drive installation slot is connected to the heat exhaust hole and the air collecting cavity; a heat exhaust gas drive mechanism is provided in the drive installation slot, so that the hot gas in the air collecting cavity is transported to the heat exhaust hole;

[0015] And / or a water inlet hole is provided above the heat dissipation body, the water inlet hole is connected to the storage cavity inside the heat dissipation body, and the water inlet hole is used to input refrigerant medium; an overflow port is also provided inside the storage cavity for transporting the refrigerant medium into the first heat dissipation body.

[0016] Preferably, the heat exhaust gas driving mechanism includes a rotating traction member and a driving member, the driving member is fixed to the inner wall of the driving mounting groove, the rotating traction member is rotatably connected to the bottom of the driving member and the airflow formed by the rotation of the rotating traction member is connected to the heat exhaust hole and the air collecting cavity.

[0017] Preferably, the rotating traction member is a rotating fan, and / or the driving member is a rotating motor.

[0018] Preferably, an air cooler comprises the dual heat dissipation structure of the air cooler described in any one of the above.

[0019] Beneficial effect: The technical solution of the present invention adopts a heat generating mechanism to perform heat exchange through the part in contact with the heat dissipation medium; after the heat exchange, the heat dissipation medium flows in the first heat dissipation body for initial heat dissipation, and flows to the second heat dissipation body close to the heat dissipation medium with a higher temperature to exchange heat between the heat dissipation medium and the second heat dissipation body, so that the heat dissipation medium is restored to a lower temperature in preparation for the next preliminary heat dissipation process, and after the secondary heat dissipation, the heat dissipation medium circulates and flows back to the first heat dissipation body to form a circulating heat dissipation loop; hot air with a higher temperature is formed in the gas collecting cavity after the secondary heat dissipation, and the hot air is driven to be discharged and diffused through the heat exhaust body, thereby keeping the temperature inside the heat dissipation structure as low as possible; thereby obtaining a dual heat dissipation structure with higher heat dissipation efficiency and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0021] Figure 1 It is an axonometric structural schematic diagram of a double heat dissipation structure of an air cooler described in the present invention.

[0022] Figure 2 It is a schematic diagram of the main structure of a double heat dissipation structure of an air cooler described in the present invention.

[0023] Figure 3 yes Figure 2 Schematic diagram of the BB cross-section structure.

[0024] Figure 4 It is a structural schematic diagram of the heat dissipation part of the double heat dissipation structure of the air cooler described in the present invention.

[0025] Figure 5 It is a structural schematic diagram of a second heat sink of a double heat dissipation structure of an air cooler described in the present invention.

[0026] Figure 6 It is a schematic diagram of the upward structure of a heat dissipation body of a double heat dissipation structure of an air cooler described in the present invention.

[0027] Figure 7 It is a schematic diagram of the top view structure of a heat dissipation body of a double heat dissipation structure of an air cooler described in the present invention.

[0028] Figure 8 The present invention is a schematic diagram of the heat dissipation medium circulation principle of a double heat dissipation structure of an air cooler.

[0029] Explanation of the accompanying drawings: 1-heat dissipation body; 11-heat dissipation hole; 12-drive mounting groove; 13-water inlet hole; 131-overflow port; 2-first heat dissipation body; 21-accommodating cavity; 211-first accommodating cavity; 212-second accommodating cavity; 22-support top plate; 23-partitioning inner plate; 24-injection medium component; 3-gas collecting cavity; 4-heat generating body; 41-heat generating component; 410-delivery pipe group; 430-heat exchanger; 5-second heat dissipation body; 51-longitudinal protection frame; 52-wet curtain; 53-installation frame; 54-support rod; 6-support column; 7-wheel group; 80-hot gas guide groove; 81-rotating traction member; 82-driving member; 83-hot gas delivery cavity; 84-heat dissipation cavity; 85-flow through hole; 86-heat absorption cavity. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] The invention provides a double heat dissipation structure of a cooling air machine and the cooling air machine.

[0034] like Figure 1-2As shown, in one embodiment of the present invention, the double heat dissipation structure of the air cooler comprises a first heat sink 2, a heat generating body 4, a heat exhaust body 1 and a second heat sink 5, wherein the first heat sink 2 is provided with a containing cavity 21 for storing a heat dissipation medium; the heat generating body 4 is in at least partial contact with the heat dissipation medium; an air collecting cavity 3 is provided between the heat exhaust body 1 and the first heat sink 2, and the heat exhaust body 1 is also provided with a heat exhaust hole 11 connected with the air collecting cavity 3; the second heat sink 5 is located between the heat exhaust body 1 and the first heat sink 2; in the heat dissipation state, after heat exchange between the heat generating body 4 and the heat dissipation medium, the heat dissipation medium performs a flow-type primary heat dissipation in the first heat sink 4, and then the heat dissipation medium flows through the second heat sink 5 for secondary heat dissipation, and the heat dissipation medium circulates back to the first heat sink to form a sustainable heat dissipation circuit; at the same time, hot air is formed in the air collecting cavity 3, and the hot air is discharged and diffused through the heat exhaust body 1.

[0035] The technical solution of the present invention is to perform preliminary heat exchange through the part that contacts the heat dissipation medium by using a heat generating body; after the heat exchange, the heat dissipation medium flows in the first heat dissipation body for initial heat dissipation, and the heat dissipation medium with a higher temperature flows to the second heat dissipation body for heat exchange between the heat dissipation medium and the second heat dissipation body, so that after the heat dissipation medium is restored to a lower temperature, the heat dissipation medium circulates and flows back to the first heat dissipation body to form a sustainable heat dissipation loop and be prepared for the next group of heat dissipation processes; after the secondary heat dissipation, hot air with a higher temperature is formed in the gas collecting cavity, and the hot air is driven to be discharged and diffused through the heat dissipation body, thereby keeping the temperature inside the heat dissipation structure as low as possible; thereby obtaining a dual heat dissipation structure with higher heat dissipation efficiency and simple operation.

[0036] Among them, in this embodiment, the heat dissipation medium is preferably water medium or cold air medium, and water medium is more preferably used. The water medium with higher heat exchange and heat dissipation effect can more quickly and effectively exchange and transfer the heat generated by the heat generating body, thereby improving the heat dissipation efficiency.

[0037] Specifically, Figure 1-2 As shown, the heat dissipating body 1 is fixed above the first heat dissipating body 2 through support columns 6 ; in this embodiment, four support columns 6 are selected and are respectively located at four corners of the first heat dissipating body 2 .

[0038] Specifically, the second heat sink 5 is fixed on the side wall between the adjacent two support columns 6 and the second heat sink 5 is perpendicular or parallel to the plane where the height direction of the accommodating cavity 21 is located; when the second heat sink 5 is perpendicular to the plane where the height direction of the accommodating cavity 21 is located, the air collecting cavity 3 is located between the second heat sink 5 and the heat dissipating body 1 (not shown in the figure); when the second heat sink 5 is parallel to the plane where the height direction of the accommodating cavity 21 is located, the air collecting cavity 3 is located on the side of the second heat sink 5, and the bottom of the second heat sink 5 can extend to contact the heat dissipation medium (not shown in the figure), or the entirety of the second heat sink 5 is located above the accommodating cavity 21 (not shown in the figure). Figure 1 , 2 , 3); driven by the heat dissipation medium to flow to the second heat dissipation body for secondary heat exchange, after the secondary heat exchange, the heat dissipation medium returns to the accommodating cavity to prepare for the next primary heat exchange, and the hot air generated in the air collecting cavity by the heat exchange of the second heat dissipation body can be discharged more quickly and conveniently, thereby improving the dual heat dissipation efficiency.

[0039] Specifically, Figure 1-3 As shown, the heat generating body 4 includes a heat generating component 41 and a heat exchanger 430. The heat generating component 41 is fixed on the supporting top plate 22 at the upper end of the first heat sink 2. The heat generating component 41 is connected to the heat exchanger 430 through a delivery pipe group 410. The heat exchanger 430 is located inside the accommodating cavity 21 and is in contact with the heat dissipation medium. Of course, the heat generating component 41 can also be installed on the heat dissipating body 1, or any position on the first heat sink 2, which is not specifically limited here. Among them, in this embodiment, the heat generating component 41 uses a refrigeration compressor; the heat exchanger 430 preferably uses a tubular heat exchanger.

[0040] Specifically, Figure 3-4 As shown, a partition inner plate 23 is provided inside the first heat sink 2, and the partition inner plate 23 divides the accommodating cavity 21 into a first accommodating cavity 211 and a second accommodating cavity 212; the partition inner plate 23 passes through the heat exchanger 430 to split the heat exchanger 430 into a left part and a right part of the heat exchanger, the left part of the heat exchanger is located in the first accommodating cavity 211, the right part of the heat exchanger is located in the second accommodating cavity 212, and the left part of the heat exchanger and the right part of the heat exchanger are interconnected, and the first accommodating cavity 211 and the second accommodating cavity 212 are interconnected; water pressure is generated by the two connected chambers to increase the flow rate of water, thereby improving the heat dissipation speed.

[0041] Specifically, Figure 4As shown, an injection medium component 24 is provided in the accommodating cavity 21, and the injection medium component 24 can transport the heat dissipation medium to the second heat dissipation body 5, and the heat dissipation medium contacts with the second heat dissipation body 5 for heat exchange and heat dissipation; in this embodiment, the injection medium component 24 is preferably a water pump; the heat dissipation medium is pumped to the second heat dissipation body 5 by the water pump so as to exchange heat with it and dissipate heat, and then the hot air inside the air collection cavity is discharged through the heat exhaust body 1, thereby further improving the heat dissipation and heat exchange efficiency.

[0042] Specifically, Figure 5 As shown, the second heat sink 5 includes a longitudinal protective frame 51, a wet curtain 52 and a mounting frame 53. The mounting frame 53 is preferably a square frame. The wet curtain 52 is fixed to the inner middle part of the mounting frame 53. The longitudinal protective frame 51 is preferably two mesh longitudinal protective frames and is fixed to the mounting frame 53 at the left and right ends of the wet curtain 52. The mounting frame 53 is fixed to the side wall of the support column 6 through a support rod 54. The wet curtain can be used to perform secondary heat exchange, heat dissipation and cooling of the heat dissipation medium with a higher temperature delivered; the protective frame can also be used to effectively protect the wet curtain from collision and other conditions, thereby extending its service life.

[0043] Specifically, Figure 1 As shown, the heat exhaust body 1 is provided with a drive installation groove 12, and the drive installation groove 12 is connected with the heat exhaust hole 11 and the gas collecting cavity 3; the drive installation groove 12 is provided with a heat exhaust gas drive mechanism, and the heat exhaust gas drive mechanism transports the hot gas from the gas collecting cavity 3 to the heat exhaust hole 11; the drive of the heat exhaust gas drive mechanism is increased to increase the diffusion and discharge speed of the gas with higher temperature, thereby improving the heat dissipation efficiency.

[0044] Among them, Figure 6-7 As shown, the heat exhaust gas driving mechanism includes a rotating traction member 81 and a driving member 82, the driving member 82 is fixed to the inner wall of the driving mounting groove 12, the rotating traction member 81 is rotatably connected to the bottom of the driving member 82, and the airflow formed by the rotation of the rotating traction member 81 is connected to the heat exhaust hole 11 and the gas collecting cavity 3.

[0045] In this embodiment, the rotating traction member 81 is preferably a rotating fan, and the driving member 82 is preferably a rotating motor.

[0046] like Figure 6-7 As shown, a hot air guide groove 80 is provided between the drive installation groove 12 and the heat exhaust body 1 , the drive installation groove 12 is communicated with the air collecting cavity 3 through the hot air guide groove 80 , and the hot air guide groove 80 is communicated with the heat exhaust hole 11 .

[0047] Among them, the hot gas guide groove 80 is a flat "6"-shaped hot gas guide groove, and the drive installation groove 12 is fixed in the inner middle part of the hot gas guide groove 80; the hot gas guide groove 80 includes a hot gas conveying cavity 83, a heat exhausting cavity 84 and a heat absorbing cavity 86, the heat absorbing cavity 86 is located at the bottom of the hot gas guide groove 80, and the upper and lower ends of the heat absorbing cavity 86 are respectively connected with the drive installation groove 12 and the air collecting cavity 3, the hot gas conveying cavity 83 is located in the inner upper part of the hot gas guide groove 80, and the hot gas conveying cavity 83 is connected with the heat absorbing cavity 86 through the flow through hole 85 at the side end of the drive installation groove 12; the heat exhausting cavity 84 is located at the outlet of the hot gas guide groove 80, and the discharged hot gas cavity 84 is respectively connected with the hot gas conveying cavity 83 and the heat exhaust hole 11.

[0048] Specifically, Figure 1 As shown, a water inlet hole 13 is further provided above the heat dissipation body 1, and the water inlet hole 13 is connected to a storage cavity (not marked in the figure) inside the heat dissipation body 1, and the water inlet hole 13 is used to input a refrigerant medium; an overflow port 131 is also provided inside the storage cavity for conveying the refrigerant medium to the first heat dissipation body 2.

[0049] Among them, Figure 8 As shown, when it is necessary to add heat dissipation medium, it is transported from the external water tank through the water inlet hole 13 to the storage cavity inside the heat dissipation body, and the overflow port of the storage cavity then transports the heat dissipation medium to the first heat dissipation body through the transportation pipeline, and the transportation process can be completed; in the heat dissipation process, after the condenser and the heat dissipation medium have heat exchanged, the heat dissipation medium flows between different accommodating cavities to achieve the first heat dissipation, and then the heat dissipation medium is absorbed by the injection medium component and transported to the second heat dissipation body for circulation to achieve the second heat dissipation, and after passing through the second heat dissipation body, it is transported back to the first heat dissipation body through the circulation pipeline to achieve recycling and cyclic heat dissipation.

[0050] The present invention also proposes an air cooler. The second subject includes a dual heat dissipation structure of the air cooler. The specific structure of the dual heat dissipation structure of the air cooler refers to the above-mentioned embodiment. Since the air cooler adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0051] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A dual heat dissipation structure of a cooling fan, characterized in that: The invention comprises a first heat sink, a heat generating body, a heat dissipating body and a second heat sink, wherein a cavity for storing a heat dissipating medium is provided inside the first heat sink; the heat generating body is in at least partial contact with the heat dissipating medium; an air collecting cavity is provided between the heat dissipating body and the first heat sink, and the heat dissipating body is further provided with a heat dissipating hole connected with the air collecting cavity; the second heat sink is located between the heat dissipating body and the first heat sink; In the working state, heat is exchanged between the heat generating body and the heat dissipation medium, and the heat dissipation medium performs primary heat dissipation during the flow process. The heat dissipation medium flows through the second heat dissipation body for secondary heat dissipation and then circulates back to the first heat dissipation body, so that hot air is formed in the gas collecting cavity, and then discharged and diffused through the heat dissipation body; A drive installation slot is provided in the heat exhaust body, and the drive installation slot is connected to the heat exhaust hole and the air collecting cavity; a heat exhaust gas drive mechanism is provided in the drive installation slot, so that the hot gas in the air collecting cavity is transported to the heat exhaust hole; A hot air guide groove is provided between the drive installation groove and the heat exhaust body, the drive installation groove passes through the hot air guide groove and communicates with the air collecting cavity, and the hot air guide groove is communicated with the heat exhaust hole; The hot gas guide groove is a flat "6"-shaped hot gas guide groove, and the drive installation groove is fixed in the inner middle part of the hot gas guide groove; the hot gas guide groove comprises a hot gas conveying cavity, a heat exhausting cavity and a heat absorbing cavity, the heat absorbing cavity is located at the bottom of the hot gas guide groove, and the upper and lower ends of the heat absorbing cavity are respectively connected with the drive installation groove and the air collecting cavity, the hot gas conveying cavity is located in the inner upper part of the hot gas guide groove, and the hot gas conveying cavity is connected with the heat absorbing cavity through the flow through hole at the side end of the drive installation groove; the heat exhausting cavity is located at the outlet of the hot gas guide groove, and the discharged hot gas cavity is respectively connected with the hot gas conveying cavity and the heat exhaust hole.

2. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: The heat dissipation medium is preferably water medium or cold air medium.

3. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: The heat dissipation body is located above the first heat dissipation body, the second heat dissipation body is fixed on the first heat dissipation body, and the second heat dissipation body is perpendicular or parallel to the plane where the height direction of the accommodating cavity is located.

4. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: The heat generating body comprises a heat generating component and a heat exchanger, wherein the heat generating component is fixed on a supporting top plate at an upper end of the first heat sink, the heat generating component is connected to the heat exchanger via a delivery pipe group, and the heat exchanger is located inside the accommodating cavity and in contact with the heat dissipation medium; And / or a partition inner plate is provided inside the first heat sink, the partition inner plate divides the accommodating cavity into a first accommodating cavity and a second accommodating cavity; the partition inner plate passes through the heat exchanger to split the heat exchanger into a left branch of the heat exchanger and a right branch of the heat exchanger, the left branch of the heat exchanger is located in the first accommodating cavity, the right branch of the heat exchanger is located in the second accommodating cavity, and the left branch of the heat exchanger and the right branch of the heat exchanger are connected to each other, and the first accommodating cavity and the second accommodating cavity are connected to each other.

5. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: A medium spraying component is disposed in the accommodating cavity, and the medium spraying component can transport the heat dissipation medium to the second heat dissipation body so that the heat dissipation medium contacts with the second heat dissipation body to dissipate heat.

6. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: The second heat sink includes a wet curtain, and the wet curtain is located in the air collecting cavity.

7. The double heat dissipation structure of a cooling fan according to claim 1, characterized in that: A water inlet hole is also provided above the heat dissipation body, the water inlet hole is communicated with the storage cavity inside the heat dissipation body, and the water inlet hole is used to input refrigerant medium; an overflow port is also provided inside the storage cavity for conveying the refrigerant medium into the first heat dissipation body.

8. The double heat dissipation structure of a cooling fan according to claim 7, characterized in that: The heat exhaust gas driving mechanism includes a rotating traction member and a driving member, the driving member is fixed to the inner wall of the driving mounting groove, the rotating traction member is rotatably connected to the bottom of the driving member, and the airflow formed by the rotation of the rotating traction member is connected to the heat exhaust hole and the air collecting cavity.

9. The double heat dissipation structure of a cooling fan according to claim 8, characterized in that: The rotating traction member is a rotating fan, and / or the driving member is a rotating motor.

10. A cooling fan, characterized in that: A double heat dissipation structure of the air cooler comprising any one of claims 1 to 9.

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