CN217178455U - Heat radiator with multiple heat radiation modes - Google Patents

Abstract

The utility model relates to a radiating technical field, more specifically relates to a heat abstractor that multiple radiating mode combines, including first heat radiation structure and second heat radiation structure, first heat radiation structure includes absorber plate, connecting pipe and the pump that connects in proper order, circulation expert has the coolant liquid in absorber plate, connecting pipe, pump and the absorber plate, second heat radiation structure sets up with absorber plate direct contact, and coolant liquid circulation circuit is at least partly and second heat radiation structure direct contact sets up. The utility model discloses the absorptive heat of absorber plate is taken away by first heat radiation structure and second heat radiation structure, and the absorptive heat of coolant liquid is absorbed the heat dissipation by second heat radiation structure again to can improve heat abstractor's radiating efficiency, be applicable to high-power, the high application occasion that requires.

Description

Heat radiator with multiple heat radiation modes

Technical Field

The utility model relates to a radiating technical field, more specifically relates to a heat abstractor that multiple radiating mode combines.

Background

In modern lighting devices, high-power light sources, especially LED light sources, are widely used, and therefore, how to improve the heat dissipation effect of the lighting device becomes an important research direction. Among them, in order to protect electronic components inside the lighting device, it is necessary to consider electrical insulation of the heat sink with respect to the electronic components when designing the heat sink having the metal components. In the prior art, heat dissipation devices may be manufactured using materials having different thermal conductivity. For example, a lamp housing for housing the light engine and driver can be made of thermally conductive plastic, and metal heat-dissipating ribs can be inserted into the interior of the lamp housing for heat dissipation. But the heat dissipation function of such a heat sink is not ideal.

China has the patent to disclose a combination water-cooling forced air cooling radiating super bright light lamp, including heat abstractor and adjusting device, adjusting device is installed in heat abstractor's left side, heat abstractor includes the lamp body, fixed mounting has the lamp shade on the right side outer wall of lamp body, the winding is provided with the heat dissipation water pipe on the outer wall of lamp body. According to the super-brightness light lamp with the water-cooling and air-cooling combined heat dissipation function, the water pump on the left side pumps cooling liquid in the water-cooling tank into the heat dissipation water pipe, and the water pump on the right side pumps the cooling liquid in the heat dissipation water pipe back into the water-cooling tank, so that the cooling liquid in the heat dissipation water pipe is continuously and circularly replaced, and heat dissipation is performed in a water-cooling mode; and starting the heat dissipation fan to blow out hot air in the lamp body through the heat dissipation holes, so that heat dissipation is performed in an air cooling mode. The mode that combines together through forced air cooling water-cooling in the above-mentioned scheme dispels the heat, has improved the radiating efficiency, however, does not take effectual cooling measure behind the cooling water pipe cold water absorbed the heat in the above-mentioned scheme, and the temperature rise must directly influence the radiating efficiency, and it is difficult to be applied to the heat dissipation occasion of high-power, high requirement.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a heat abstractor that multiple radiating mode combines, water-cooling and other radiating modes combine, and can in time spill the absorptive heat of coolant liquid, reduce the temperature of coolant liquid, improve the radiating efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the heat dissipation device comprises a first heat dissipation structure and a second heat dissipation structure, wherein the first heat dissipation structure comprises a heat absorption plate, a connecting pipe and a pump which are sequentially connected, cooling liquid flows through the heat absorption plate, the connecting pipe, the pump and the heat absorption plate in a circulating mode, the second heat dissipation structure is in direct contact with the heat absorption plate, and at least part of a cooling liquid circulation loop is in direct contact with the second heat dissipation structure.

The utility model discloses a heat abstractor that multiple radiating mode combines, the absorptive heat of absorber plate is partly taken away by the coolant liquid that flows in the absorber plate, partly heat is taken away by the second heat radiation structure with absorber plate direct contact, the coolant liquid absorbs the temperature rise of the heat back coolant liquid of absorber plate, and on the coolant liquid circulation loop, at least partial circulation loop internal cooling liquid can realize the heat exchange with second heat radiation structure direct contact, the coolant liquid temperature cycle is after descending to the absorber plate, be used for absorbing the heat that the heat source produced once more. The utility model discloses the absorptive heat of absorber plate is taken away by first heat radiation structure and second heat radiation structure, and the absorptive heat of coolant liquid is absorbed the heat dissipation by second heat radiation structure again to can improve heat abstractor's radiating efficiency, be applicable to high-power, high application scenario who requires.

Furthermore, the second heat dissipation structure comprises a plurality of heat dissipation members which are regularly arranged, and one side surface of each heat dissipation member is in contact installation with the heat absorption plate. The heat source is arranged on the front surface of the heat absorbing plate, and the heat radiating piece is arranged on the back surface of the heat absorbing plate, so that part of heat conducted to the heat absorbing plate by the heat source is taken away by cooling liquid circulating in the heat absorbing plate, and part of heat is taken away by the second heat radiating structure, and the heat radiating efficiency is effectively improved.

Furthermore, a plurality of radiating pieces surround to form an annular structure, the second radiating structure further comprises a centrifugal fan, and the centrifugal fan is located on the inner side of the annular structure. The air can be sucked from the circumferential direction of the annular structure or discharged to the circumferential direction of the annular structure by setting the rotating direction of the centrifugal fan or the direction of fan blades of the centrifugal fan; the centrifugal fan promotes to enter or discharge from each air channel uniformly, and the heat dissipation function of each heat dissipation piece is fully exerted.

Furthermore, the plurality of radiating pieces are surrounded to form at least two groups of annular structures which are arranged concentrically, and a segmented gap is formed between every two adjacent annular structures. The sectional type design is adopted, so that the speed difference between the air inlet and the air outlet can be effectively reduced, and the noise caused by the air speed difference between the air inlet and the air outlet can be avoided or reduced.

Furthermore, the second heat dissipation structure further comprises a water cooling plate, the heat dissipation member is connected between the heat absorption plate and the water cooling plate, and cooling liquid circulates in the heat absorption plate, the pump, the water cooling plate and the heat absorption plate in sequence. The heat absorbed by the cooling liquid in the heat absorption plate flows to the water cooling plate under the action of the pump, the cooling liquid in the water cooling plate exchanges heat with the heat dissipation part, and the cooling liquid in the water cooling plate flows back to the heat absorption plate after the temperature of the cooling liquid in the water cooling plate is reduced, so that the water cooling heat dissipation effect can be improved.

Furthermore, a plurality of flow channels extending inwards from the edge of the water cooling plate or the edge of the heat absorbing plate are uniformly distributed in the water cooling plate and the heat absorbing plate, and the flow channels are communicated at least pairwise. The edge of the water cooling plate or the heat absorbing plate extends towards the inner side, so that the water cooling plate or the heat absorbing plate is convenient to process, and the end part of the flow channel close to the edge is plugged in actual use.

Further, the second heat dissipation structure further comprises an axial fan, the axial fan is coaxially located at the end portion of the second heat dissipation structure, the centrifugal fan sucks air at one end of the annular structure and around the annular structure, and the axial fan discharges the sucked air from the other end of the annular structure. At this moment, air is sucked from the top of the annular structure and the circumferential direction of the annular structure, and is discharged to the other end of the annular structure along the axial direction by the axial fan, so that high-air-volume air enters the second heat dissipation structure to improve the heat dissipation efficiency, the air is discharged in a single direction to be favorable for heat management, and the heat dissipation is avoided to cause the temperature rise of other surrounding parts.

Further, the heat dissipation elements are of sheet structures, the connecting pipes sequentially penetrate through the heat dissipation elements, the connecting pipes penetrate through the heat dissipation elements at more than one position, and the connecting pipes are wound in a circle in the annular structure. Compared with the columnar heat radiating piece, the sheet heat radiating piece increases the contact area between air and the heat radiating piece, so that the heat radiating efficiency can be effectively improved; in addition, the multilayer connecting pipe is surrounded in the axial height direction, and the heat dissipation effect can be improved. The connection pipe may preferably vertically pass through the heat sink to facilitate the installation of the heat sink, but of course, the connection pipe may not pass through the heat sink, or the connection pipe may not be perpendicular to the heat sink, and may be disposed parallel to the heat sink when disposed.

Furthermore, the heat dissipation pieces are of cylindrical structures, the central axes of the plurality of cylindrical structures are parallel, and the connecting pipe is spirally wound between the adjacent heat dissipation pieces. The heat dissipation piece with the columnar structure is convenient to process and design, and due to the sectional design of the second heat dissipation structure obtained by arranging the plurality of columnar structures, the wind speeds of the air inlet and the air outlet are approximately equal, so that the noise caused by the wind speed difference of the air inlet and the air outlet can be avoided or reduced.

The heat absorption plate is communicated with the water storage tank, the pump is communicated with the water storage tank, and the water storage tank is provided with a water injection hole. The water injection hole can be arranged to inject cooling liquid into the water storage tank or replace the cooling liquid, and the water storage tank is convenient for storing the cooling liquid.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a heat abstractor that multiple radiating mode combines, the absorptive heat of absorber plate is taken away by first heat radiation structure and second heat radiation structure, and the absorptive heat of coolant liquid is absorbed the elimination by second heat radiation structure again to can improve heat abstractor's radiating efficiency, be applicable to high-power, the high application occasion that requires.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation device combining multiple heat dissipation methods according to an embodiment;

fig. 2 is a schematic structural diagram of another view of the heat dissipation device with multiple heat dissipation methods combined according to an embodiment;

fig. 3 is a schematic view illustrating an arrangement of flow channels in a heat absorbing plate of a heat dissipating device according to a combination of a plurality of heat dissipating methods in one embodiment;

FIG. 4 is a schematic view illustrating an arrangement of inner channels of a water-cooling plate of a heat dissipation device according to one embodiment of the present invention;

fig. 5 is a schematic structural diagram of a heat dissipation device combining multiple heat dissipation methods in the second embodiment;

fig. 6 is a perspective view of a heat dissipation device combining multiple heat dissipation methods according to a second embodiment;

fig. 7 is a perspective view of another perspective view of the heat dissipation device combining multiple heat dissipation methods according to the second embodiment;

fig. 8 is a perspective view of a first heat dissipation structure and a second heat dissipation structure according to a second embodiment;

fig. 9 is a perspective view of another perspective of the first heat dissipation structure and the second heat dissipation structure in the second embodiment;

fig. 10 is a schematic view of partial structures of a first heat dissipation structure and a second heat dissipation structure in the second embodiment;

in the drawings: 1. a first heat dissipation structure; 11. a heat absorbing plate; 12. a connecting pipe; 13. a pump; 14. a water storage tank; 2. a second heat dissipation structure; 21. a heat sink; 22. a centrifugal fan; 23. a water-cooling plate; 24. a flow channel; 25. an axial flow fan; 26. and (4) a bayonet.

Detailed Description

The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are the terms "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Example one

Fig. 1 to 4 show an embodiment of a heat dissipation device combined with multiple heat dissipation methods of the present invention, which includes a first heat dissipation structure 1 and a second heat dissipation structure 2, the first heat dissipation structure 1 includes a heat absorbing plate 11, a connecting pipe 12 and a pump 13 connected in sequence, a cooling liquid circulates in the heat absorbing plate 11, the connecting pipe 12, the pump 13 and the heat absorbing plate 11, and the second heat dissipation structure 2 is in direct contact with the heat absorbing plate 11 and at least a portion of the cooling liquid circulation loop is in direct contact with the second heat dissipation structure 2. The heat dissipation device in this embodiment further includes a water storage tank 14, the pump 13, the water storage tank 14 and the heat absorbing plate 11 are sequentially communicated, the water storage tank 14 is provided with a water injection hole, the water injection hole is arranged to inject cooling liquid or replace cooling liquid into the water storage tank 14, and the water storage tank 14 is arranged to facilitate storage of the cooling liquid. In the implementation of this embodiment, a part of the heat absorbed by the heat absorbing plate 11 is taken away by the cooling liquid flowing in the heat absorbing plate 11, a part of the heat is taken away by the second heat dissipation structure 2 directly contacting with the heat absorbing plate 11, the temperature of the cooling liquid rises after the cooling liquid absorbs the heat of the heat absorbing plate 11, on the cooling liquid circulation loop, at least a part of the cooling liquid in the circulation loop can directly contact with the second heat dissipation structure 2 to realize heat exchange, and the cooling liquid returns to the heat absorbing plate 11 after the temperature of the cooling liquid drops, and is used for absorbing the heat generated by the heat source again.

The second heat dissipation structure 2 comprises a plurality of regularly arranged heat dissipation members 21, and one side surface of each heat dissipation member 21 is in contact with and mounted on the heat absorption plate 11. The heat source is arranged on the front surface of the heat absorbing plate 11, and the heat radiating member 21 is arranged on the back surface of the heat absorbing plate 11, so that part of heat conducted from the heat source to the heat absorbing plate 11 is taken away by the cooling liquid circulating in the heat absorbing plate 11, and part of heat is taken away by the second heat radiating structure 2, and the heat radiating efficiency is effectively improved.

In this embodiment, the plurality of heat dissipation members 21 are surrounded to form an annular structure, the second heat dissipation structure 2 further includes a centrifugal fan 22, and the centrifugal fan 22 is located inside the annular structure; the present embodiment may achieve the air suction from the circumferential direction of the ring structure or the air discharge to the circumferential direction of the ring structure by setting the rotation direction of the centrifugal fan 22 or the fan blade direction of the centrifugal fan 22. When the ring structure is a circular ring structure, the diameter of the centrifugal fan 22 is slightly smaller than the diameter of the inner ring of the ring structure, and the height of the centrifugal fan 22 is not smaller than the height of the heat dissipation members, so that when the centrifugal fan 22 works, air enters or is discharged from each air channel formed between adjacent heat dissipation members, and the heat dissipation function of each heat dissipation member can be fully utilized. The heat dissipation member 21 has a sheet structure, and the sheet heat dissipation member can increase the contact area between the air and the heat dissipation member 21, thereby effectively improving the heat dissipation efficiency. Of course, the plurality of heat dissipation members 21 may also form at least two sets of concentrically arranged annular structures, and a segment gap is formed between adjacent annular structures. The second heat dissipation structure 2 adopts a sectional design, so that the speed difference between the air inlet and the air outlet can be effectively reduced, and the noise caused by the air speed difference between the air inlet and the air outlet can be avoided or reduced.

The second heat dissipation structure 2 further comprises a water cooling plate 23, the heat dissipation member 21 is connected between the absorber plate 11 and the water cooling plate 23, and the cooling liquid circulates in the absorber plate 11, the pump 13, the water cooling plate 23 and the absorber plate 11 in sequence. The heat absorbed by the cooling liquid in the absorber plate 11 flows to the water cooling plate 23 under the action of the pump 13, the cooling liquid in the water cooling plate 23 exchanges heat with the heat sink 21, and the cooling liquid in the water cooling plate 23 returns to the absorber plate 11 after the temperature of the cooling liquid is reduced, so that the water cooling and heat dissipation effects can be improved. A plurality of flow channels 24 extending inwards from the edge of the water cooling plate 23 or the heat absorbing plate 11 are uniformly distributed in the water cooling plate 23 and the heat absorbing plate 11, and the plurality of flow channels 24 are communicated at least two by two, as shown in fig. 3 and 4. The edge of the water cooling plate 23 or the heat absorbing plate 11 extends inwards for convenient processing, and the end part of the flow passage 24 close to the edge is provided with a plug in practical use. In this embodiment, the inner diameter and the outer diameter of the annular structure formed by the heat absorbing plate 11, the water cooling plate 23 and the heat dissipating member 21 are equal and are coaxially arranged. In operation, a part of the heat absorbed by the heat absorbing plate 11 is conducted to the cooling liquid circulating in the heat absorbing plate 11, a part of the heat is conducted to the heat dissipating member 21, the heat conducted to the cooling liquid flows between the water cooling plate 23 and the heat dissipating member 21 to generate heat exchange, the heat conducted to the heat dissipating member 21 and the air generate heat exchange, finally, the temperature of the heat dissipating member 21 decreases, the temperature of the cooling liquid also decreases, and the cooling liquid with the decreased temperature flows back to the heat absorbing plate 11 to absorb heat again.

Example two

The present embodiment is similar to the present embodiment, except that the second heat dissipation structure 2 does not include the water cooling plate 23, the second heat dissipation structure 2 of the present embodiment further includes an axial fan 25 besides the centrifugal fan 22, the axial fan 25 is coaxially located at the end of the second heat dissipation structure 2, the centrifugal fan 22 sucks air at one end of the annular structure and around the annular structure, and the axial fan 25 discharges the sucked air from the other end of the annular structure, as shown in fig. 5 to 10. The arrangement of the sheet-shaped heat radiating piece can effectively improve the heat radiating efficiency due to the fact that the contact area between air and the heat radiating piece is increased.

The connection pipe 12 may be arranged axially along the second heat dissipation structure 2 with the axis of the connection pipe 12 parallel to the heat dissipation members 21, and the connection pipe 12 is arranged in contact between the two sets of heat dissipation members 21 in the axial height direction. However, in order to increase the number of the heat dissipating members 21, facilitate the installation of the heat dissipating members 21, and improve the heat dissipating efficiency, the connection pipe 12 of the present embodiment is vertically penetrated to the heat dissipating members 21. Specifically, the method comprises the following steps: the connecting pipe 12 sequentially passes through the radiating elements 21, the connecting pipe 12 passes through the radiating elements 21 at more than one position, and the connecting pipe 12 circles around in the second radiating structure 2 along the axial height direction of the second radiating structure 2. In addition, surrounding the multilayer connection pipe 12 in the axial height direction also contributes to an improvement in heat dissipation effect. Bayonet 26 has been seted up to the lamellar structure, and the setting of bayonet 26 is fixed the lamellar structure in connecting pipe 12 periphery, and later through fixed modes such as welding with the lamellar structure.

The working principle of the embodiment is as follows:

the heat source and the heat absorption plate 11 exchange heat, a part of heat of the heat absorption plate 11 is circularly circulated by cooling liquid from top to bottom in the connecting pipe 12, a part of heat is conducted to the heat dissipation member 21 through the heat absorption block, and the heat of the cooling liquid is dissipated to the heat dissipation member 21, so that the temperature of the heat dissipation member 21 is increased, and the temperature of the cooling liquid is reduced and can be used for cooling again; the coolant that has completed the heat exchange with the radiator 21 is returned to the storage tank 14 for the next circulation by the pump 13. On one hand, the present embodiment adopts a heat dissipation manner combining water cooling and heat dissipation elements 21, so that the connection pipe 12 and all the heat dissipation elements 21 can exchange heat; on the other hand, under the action of the centrifugal fan 22 and the axial fan 25, air enters or is discharged from each air passage formed between adjacent heat dissipation members 21, and the heat dissipation function of each heat dissipation member 21 is fully utilized, thereby improving the heat dissipation efficiency.

EXAMPLE III

The present embodiment is similar to the first or second embodiment, except that the heat dissipation member 21 is a cylindrical structure, the central axes of the cylindrical structures are parallel, and the connection pipe 12 is wound around the adjacent heat dissipation members. Specifically, the central axes of the plurality of columnar structures are connected to form a plurality of concentric circular structures, and the heat dissipation members 21 are uniformly arranged on each concentric circular structure; due to the sectional design of the second heat dissipation structure 2 obtained by arranging the plurality of columnar structures, the wind speeds of the air inlet and the air outlet are approximately equal, and the noise caused by the wind speed difference of the air inlet and the air outlet can be avoided or reduced. When the heat dissipation member 21 is a columnar structure, all the columnar structures have the same shape and size, and the sectional design of the second heat dissipation structure 2 can be realized only by adjusting the position of the heat dissipation member 21, so that the structure is simple, the production cost is low, and the heat dissipation effect and the noise reduction effect are good. Wherein, the number of the heat dissipation members 21 on each concentric circle is equal, and the heat dissipation members 21 at corresponding positions on different concentric circles are arranged along the radial direction of the concentric circles. The regular arrangement is attractive in appearance, and the sizes of the air channels arranged in the radial direction are the same, so that air is uniformly discharged from each air channel, and the heat dissipation effect of the second heat dissipation structure 2 is improved. The columnar structure in the embodiment is preferably a cylindrical structure, so that adverse effects of edges and corners on wind flow are avoided.

Sufficient positions are reserved for the arrangement of the connecting pipes 12 by the heat dissipation members 21 of the columnar structures, and the connecting pipes 12 are spirally wound on the second heat dissipation structures 2 from inside to outside and from top to bottom. Specifically, the air duct formed by the connecting pipe 12 at a certain axial height between the adjacent heat dissipating elements 21 is wound in a serpentine shape, one circle of the connecting pipe 12 from outside to inside or from inside to outside contacts each heat dissipating element 21, and the connecting pipes 12 at different axial heights are connected in series. The embodiment surrounds the plurality of layers of connecting pipes 12 in both the axial direction and the radial direction, so that the heat exchange efficiency between the connecting pipes 12 and the second heat dissipation structure 2 can be improved, and the heat dissipation efficiency can be improved.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The heat dissipation device with multiple heat dissipation modes combined is characterized by comprising a first heat dissipation structure (1) and a second heat dissipation structure (2), wherein the first heat dissipation structure (1) comprises a heat absorption plate (11), a connecting pipe (12) and a pump (13) which are sequentially connected, cooling liquid circulates in the heat absorption plate (11), the connecting pipe (12), the pump (13) and the heat absorption plate (11), the second heat dissipation structure (2) is in direct contact with the heat absorption plate (11), and at least part of a cooling liquid circulation loop is in direct contact with the second heat dissipation structure (2).

2. The combined heat dissipation device of claim 1, wherein the second heat dissipation structure (2) comprises a plurality of heat dissipation members (21) arranged regularly, and one side of each heat dissipation member (21) is in contact with the heat absorption plate (11).

3. The combined heat dissipation device of claim 2, wherein a plurality of heat dissipation members (21) are surrounded to form a ring structure, and the second heat dissipation structure (2) further comprises a centrifugal fan (22), wherein the centrifugal fan (22) is located inside the ring structure.

4. The combined heat dissipation device of claim 3, wherein the plurality of heat dissipation members (21) are arranged around at least two sets of concentrically arranged ring structures, and a segment gap is formed between adjacent ring structures.

5. The combined heat dissipation device of any one of claims 2 to 4, wherein the second heat dissipation structure (2) further comprises a water cooling plate (23), the heat dissipation member (21) is connected between the heat absorption plate (11) and the water cooling plate (23), and the cooling fluid circulates through the heat absorption plate (11), the pump (13), the water cooling plate (23) and the heat absorption plate (11) in sequence.

6. The heat dissipating device combining multiple heat dissipating manners of claim 5, wherein a plurality of flow passages (24) extending inward from the edge of the water cooling plate (23) or the heat absorbing plate (11) are uniformly distributed in the water cooling plate (23) and the heat absorbing plate (11), and the plurality of flow passages (24) are communicated at least two by two.

7. The heat dissipating device with combination of multiple heat dissipating manners as claimed in claim 3 or 4, wherein the second heat dissipating structure (2) further comprises an axial fan (25), the axial fan (25) is coaxially located at an end of the second heat dissipating structure (2), the centrifugal fan (22) sucks air at one end of the annular structure and around the annular structure, and the axial fan (25) exhausts the sucked air from the other end of the annular structure.

8. The combined heat dissipation device of claim 7, wherein the heat dissipation member (21) is a plate-shaped structure, the connection pipe (12) sequentially passes through each heat dissipation member (21), and the connection pipe (12) passes through the heat dissipation member (21) at more than one position, and the connection pipe (12) is coiled in a ring-shaped structure.

9. The combined heat dissipation device of claim 2, wherein the heat dissipation members (21) are cylindrical structures, the central axes of the cylindrical structures are parallel, and the connecting pipe (12) is coiled around the adjacent heat dissipation members.

10. The heat dissipating device combining multiple heat dissipating manners of claim 1, further comprising a water storage tank (14), wherein the pump (13), the water storage tank (14) and the heat absorbing plate (11) are sequentially communicated, and the water storage tank (14) is provided with water injection holes.

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