Heat dissipation device and heat dissipation system

Abstract

The utility model provides a heat dissipation device and a heat dissipation system, the heat dissipation device comprises a heat dissipation frame, a first heat dissipation part and a second heat dissipation part, the first heat dissipation part and the second heat dissipation part are detachably arranged on the heat dissipation frame, and the heat dissipation frame comprises a frame body of a U-shaped groove structure and a first passive heat dissipation structure integrally formed with the frame body. The first heat dissipation part and the second heat dissipation part are arranged in the groove cavity of the frame body and located on the two sides of the first passive heat dissipation structure respectively. In this way, the heat dissipation frame can protect the first heat dissipation part and the second heat dissipation part, and the probability that the first heat dissipation part and the second heat dissipation part are damaged by external force is reduced; besides, the first passive heat dissipation structure can disperse the external force borne by the frame body and enhance the structural strength of the frame body, so that the probability that the frame body deforms under the external force can be effectively reduced, meanwhile, the first passive heat dissipation structure can timely conduct out the heat of the frame body, and the overall heat dissipation efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic heat dissipation, in particular to a heat dissipation device and a heat dissipation system. Background Art

[0002] The heat dissipation structure of the existing heat dissipation device is generally fixed by a bracket or a mounting plate. However, neither the bracket nor the mounting plate can provide good protection for the heat dissipation structure, and the structural strength of the bracket or the mounting plate is relatively poor, and it is easy to deform under the action of external force, thereby affecting the heat dissipation effect of the heat dissipation device. Utility Model Content

[0003] In view of this, the utility model is dedicated to providing a heat dissipation device, which provides a heat dissipation device with high heat dissipation efficiency and is not easily damaged by external forces by providing a frame body with a U-shaped groove structure and a first passive heat dissipation structure in one piece. In addition, the utility model also provides a heat dissipation system including the above heat dissipation device.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A heat dissipation device comprises a heat dissipation frame, and a first heat dissipation portion and a second heat dissipation portion detachably arranged on the heat dissipation frame, wherein:

[0006] The heat dissipation frame includes a frame body with a U-shaped groove structure and a first passive heat dissipation structure integrally formed with the frame body. The first heat dissipation part and the second heat dissipation part are arranged in the groove cavity of the frame body and are respectively located on both sides of the first passive heat dissipation structure.

[0007] Preferably, the first heat dissipation unit includes:

[0008] A phase-change heat dissipation structure is arranged in the slot cavity of the frame;

[0009] The protection plate is located on a side of the phase change heat dissipation structure away from the bottom wall of the frame, and in an assembled state, the protection plate is connected to the side wall of the frame.

[0010] Preferably, in the assembled state, a side of the second heat dissipation portion away from the bottom wall of the frame body does not exceed an edge of a side edge of the frame body.

[0011] Preferably, in an assembled state, neither the first heat dissipation portion nor the second heat dissipation portion exceeds a U-shaped end surface of the frame.

[0012] Preferably, the side of the bottom wall of the frame body facing away from the slot cavity is the installation side of the heating component;

[0013] The bottom wall of the groove cavity is provided with an opening to form a first fixing position for installing the first heat dissipation part and a second fixing position for installing the second heat dissipation part, so that a part of the first heat dissipation part and a part of the second heat dissipation part can be embedded in the bottom of the groove cavity and contact the heating component.

[0014] Preferably, the first heat dissipation portion comprises a first heat conducting plate, the first heat conducting plate passes through the first fixing position and is thermally connected to the high heat generation area of ​​the heat generating component and the phase change heat dissipation structure at the same time;

[0015] The second heat dissipation portion includes a second heat conducting plate, which passes through the second fixing position and is thermally connected to the low heat generation area of ​​the heat generating component and the first passive heat dissipation structure.

[0016] Preferably, the phase change heat dissipation structure comprises:

[0017] A blowing plate assembly, comprising a plurality of blowing plates arranged in parallel, wherein the blowing plates have a phase change cavity inside, and the phase change cavity comprises a heat absorption zone and a phase change zone;

[0018] The cover plate is arranged on one side of the blowing plate close to the heat absorption zone and is heat-conductingly connected to the heating component through the first heat-conducting plate. The cover plate has a cooling cavity inside that is connected to the phase change cavities of the multiple blowing plates.

[0019] Preferably, a comb plate is provided between the protective plate and the blowing plate assembly, and a plurality of mounting grooves for fixing the blowing plate are provided on one side of the comb plate close to the blowing plate assembly, and the mounting grooves are arranged one-to-one with the blowing plates.

[0020] Preferably, the second heat dissipation portion is detachably connected to the frame via a threaded structure.

[0021] A heat dissipation system, comprising:

[0022] A heating component having a heating surface, wherein the heating surface includes a high heating area and a low heating area;

[0023] The heat dissipation device is the above-mentioned heat dissipation device and is thermally connected to the heating surface.

[0024] It can be seen from the above technical scheme that the heat dissipation device provided by the utility model includes a heat dissipation frame, a first heat dissipation part and a second heat dissipation part, wherein the first heat dissipation part and the second heat dissipation part are detachably mounted on the heat dissipation frame, so that the first heat dissipation part and the second heat dissipation part can be replaced at any time according to the heating condition of the heating component, thereby ensuring the heat dissipation effect of the heat dissipation device and improving the applicability of the heat dissipation device. In addition, the heat dissipation frame includes a frame body and a first passive heat dissipation structure, wherein the frame body is a U-shaped groove structure, and the frame body and the first passive heat dissipation structure are integrally formed, and the first heat dissipation part and the second heat dissipation part are arranged in the groove cavity of the frame body, and are respectively located on both sides of the first passive heat dissipation structure; in this way, on the one hand, the frame body and the first passive heat dissipation structure are integrally formed, and the first passive heat dissipation structure can disperse the external force on the frame body and enhance the structural strength of the frame body itself, thereby effectively reducing the probability of deformation of the frame body under the action of external force. At the same time, the first passive heat dissipation structure can also timely export the heat of the frame body, thereby improving the heat dissipation efficiency of the device as a whole. On the other hand, the frame body with a U-shaped groove structure can be used as a protective structure for the first passive heat dissipation structure, the first heat dissipation part and the second heat dissipation part to prevent the above heat dissipation structure from being damaged under the action of external force. At the same time, since the U-shaped groove structure has openings in three directions, it can also reduce the influence of the frame wall of the frame body on the gas flow, thereby ensuring the heat dissipation capacity of the heat dissipation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Shown is a schematic structural diagram of a heat dissipation device provided in an embodiment of the utility model;

[0026] Figure 2 The figure shows a schematic structural diagram of a heat dissipation frame provided in an embodiment of the utility model;

[0027] Figure 3 The figure is a schematic structural diagram of a first heat dissipation part provided in an embodiment of the utility model;

[0028] Figure 4 Shown Figure 3 An exploded view of the first heat dissipation part;

[0029] Figure 5 Shown is a structural schematic diagram of a second heat dissipation portion provided in an embodiment of the utility model.

[0030] exist Figure 1-Figure 5 middle:

[0031] 1- heat dissipation frame, 2- first heat dissipation part, 3- second heat dissipation part;

[0032] 11-frame, 12-first passive heat dissipation structure;

[0033] 21-protection plate, 22-comb plate, 23-liquid injection pipe, 24-blowing plate, 25-cover plate, 26-first heat conduction plate;

[0034] 31 - second heat conducting plate, 32 - second passive heat dissipation structure. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] like Figure 1-Figure 5 As shown, the heat dissipation device in the embodiment of the utility model includes a heat dissipation frame 1, a first heat dissipation part 2 and a second heat dissipation part 3, wherein the first heat dissipation part 2 and the second heat dissipation part 3 can be detachably mounted on the heat dissipation frame 1, so that the first heat dissipation part 2 and the second heat dissipation part 3 can be replaced at any time according to the heating condition of the heating component (the heating component refers to a device or electronic device that generates heat during operation, such as outdoor communication equipment). For example, when the heat generated by the heating component increases, the heat dissipation efficiency of the first heat dissipation part 2 and / or the second heat dissipation part 3 can be adjusted in a targeted manner, thereby achieving a better heat dissipation effect. In addition, as Figure 1 and Figure 2 As shown, the heat dissipation frame 1 includes a frame 11 and a first passive heat dissipation structure 12 (i.e., a heat dissipation structure that does not rely on external energy input, but only relies on natural physical processes such as heat conduction, heat convection and radiation to achieve heat dissipation), wherein the frame 11 is a U-shaped groove structure, and the frame 11 and the first passive heat dissipation structure 12 are integrally formed, and the first heat dissipation part 2 and the second heat dissipation part 3 are arranged in the groove cavity of the frame 11, and are respectively located on both sides of the first passive heat dissipation structure 12; in this way, on the one hand, the frame 11 and the first passive heat dissipation structure 12 are integrally formed, so that the first passive heat dissipation structure 12 can disperse the external force on the frame 11 and enhance the structural strength of the frame 11 itself, thereby effectively reducing the probability of deformation of the frame 11 under the action of external force. At the same time, the first passive heat dissipation structure 12 can also timely export the heat of the frame 11, thereby improving the overall heat dissipation efficiency of the device. On the other hand, the frame 11 with a U-shaped groove structure can be used as a protective structure for the first passive heat dissipation structure 12, the first heat dissipation part 2 and the second heat dissipation part 3 to prevent the above heat dissipation structure from being damaged under the action of external force. At the same time, since the U-shaped groove structure has openings in three directions, it can also reduce the influence of the frame wall of the frame body 11 on the gas flow, thereby ensuring the heat dissipation capacity of the above-mentioned heat dissipation part.

[0037] Optionally, in some embodiments, the first passive heat dissipation structure 12 includes a plurality of first heat dissipation fins, and the plurality of first heat dissipation fins are arranged in parallel at the bottom of the slot cavity of the frame 11 .

[0038] In some embodiments, the heat dissipation efficiencies of the first heat dissipation portion 2 and the second heat dissipation portion 3 are different, and the heat dissipation efficiency of the first heat dissipation portion 2 is higher than that of the second heat dissipation portion 3. At the same time, the first heat dissipation portion 2 and the second heat dissipation portion 3 can be thermally connected to the high heat generation area (i.e., the area with higher heat generation and / or heat generation efficiency) and the low heat generation area (i.e., the area with lower heat generation and / or heat generation efficiency) of the heat generating component respectively; in this way, the overall temperature uniformity of the heat generating component can be effectively improved, thereby improving the heat dissipation effect. At the same time, it can also alleviate the situation where heat is transferred from the high heat generation area to the low heat generation area in the heat generating component, thereby helping to increase the service life of the heat generating component.

[0039] Furthermore, the first heat dissipation part 2 and the second heat dissipation part 3 include heat dissipation structures with different heat dissipation principles to achieve the difference in heat dissipation efficiency between the first heat dissipation part 2 and the second heat dissipation part 3. For ease of understanding, the following takes the example in which the first heat dissipation part 2 includes a phase change heat dissipation structure and the second heat dissipation part 3 includes a second passive heat dissipation structure 32 to describe in detail an embodiment of the utility model.

[0040] like Figure 3 and Figure 4 As shown, the first heat dissipation part 2 includes a phase change heat dissipation structure (i.e., a heat dissipation structure that utilizes the phase change of matter to absorb or release a large amount of heat, wherein the above-mentioned phase change of matter refers to the mutual transformation of matter between solid and liquid, or the mutual transformation of matter between liquid and gas) and a protective plate 21, wherein the phase change heat dissipation structure is arranged in the groove cavity of the frame 11, and the protective plate 21 is located on the side of the phase change heat dissipation structure away from the bottom wall of the frame 11; in this way, the protective plate 21 cooperates with the frame 11 with a U-shaped groove structure to form circumferential protection for the above-mentioned phase change heat dissipation structure, thereby reducing the probability of damage thereof under the action of external force.

[0041] It should be noted that the protective plate 21 can be connected to the phase-change heat dissipation structure through a connector or directly so that it is fixedly arranged on the side of the phase-change heat dissipation structure away from the first heat-conducting member; however, under this arrangement, when the protective plate 21 is subjected to external force, most of the force will still act on the phase-change heat dissipation structure. Based on this, in a preferred embodiment, the protective plate 21 is connected to the frame 11 to be fixedly arranged on the side of the phase-change heat dissipation structure away from the first heat-conducting member. For example, Figure 1 As shown, in the assembled state, the protective plate 21 is directly fixedly connected to the side wall of the frame 11 by welding or the like. In this way, when the protective plate 21 is subjected to external force, most of the force will be transferred to the frame 11, thereby being able to better protect the phase change heat dissipation structure. Of course, when the frame 11 cannot be directly connected to the protective plate 21, the frame 11 and the protective plate 21 can also be connected by a connector.

[0042] Further preferably, Figure 3 and Figure 4 As shown, the protective plate 21 is provided with a plurality of through holes so that the gas can pass through the protective plate 21. In this way, the influence of the setting of the protective plate 21 on the gas flow can be reduced to ensure the heat dissipation efficiency and heat dissipation effect of the first heat dissipation part 2. It should be noted that the number and diameter of the above-mentioned through holes can be adaptively designed according to needs during specific implementation, but it should be ensured that the protective plate 21 can achieve the preset protection effect.

[0043] In some embodiments, the phase change heat dissipation structure includes a blowing plate 24 assembly and a cover plate 25, wherein the blowing plate 24 assembly includes a plurality of blowing plates 24 arranged in parallel, the blowing plate 24 has a phase change cavity inside, and the phase change cavity includes a heat absorption zone and a phase change zone; the cover plate 25 is arranged on the side of the blowing plate 24 close to the heat absorption zone, and is thermally connected to the high heat generation zone of the heat generating assembly, and the cover plate 25 has a cooling cavity inside that connects the phase change cavities of the plurality of blowing plates 24. Specifically, as Figure 1 As shown, when the heat dissipation device is in use, the heat absorption zone and cooling chamber of the phase change cavity have a heat dissipation medium that can change between gas and liquid states, and the phase change zone of the phase change cavity is located above the heat absorption zone. In this way, after the heating component generates heat, a temperature gradient will be generated between the heating component and the above-mentioned heat dissipation medium. The heat is transferred from the heating component to the heat dissipation medium under the above-mentioned temperature gradient. After the heat dissipation medium absorbs the heat, part of the heat dissipation medium is transformed from liquid to gas, and rises to the phase change zone of the phase change cavity. It exchanges heat with the external environment in the phase change zone, and falls back to the heat absorption zone to participate in the next cycle after heat dissipation and liquefaction. In addition, it should be noted that although the heat dissipation medium dissipates heat and liquefies in the phase change zone, this does not mean that only the phase change zone of the phase change cavity of the entire first heat dissipation part 2 is exchanging heat with the outside world. In fact, during the heat dissipation process, after the liquid heat dissipation medium absorbs heat, as long as its temperature is greater than the temperature of the external environment, it will exchange heat with the external environment.

[0044] Further, such as Figure 4 As shown, the first heat dissipation part 2 includes an L-shaped liquid injection pipe 23, and the liquid injection pipe 23 is connected to the cooling cavity of the cover plate 25, so as to introduce the heat dissipation medium into the cooling cavity and the phase change cavity.

[0045] Further, such as Figure 4As shown, a comb plate 22 is provided between the protective plate 21 and the blowing plate 24 assembly, and a plurality of mounting grooves for fixing the blowing plate 24 are provided on one side of the comb plate 22 close to the blowing plate 24 assembly, and the mounting grooves are arranged one-to-one with the blowing plate 24. In this way, on the one hand, there is a gap between the protective plate 21 and the blowing plate 24, and when the protective plate 21 is subjected to external force, there is a space between the protective plate 21 and the blowing plate 24 that allows the protective plate 21 to deform, thereby reducing the force transmitted from the protective plate 21 to the blowing plate 24 and improving the protective effect of the protective plate 21; on the other hand, the setting of the mounting groove cooperates with the opening on the cover plate 25 that is connected to the phase change cavity, so as to limit the blowing plate 24 and improve the assembly accuracy of the blowing plate 24, so as to improve the heat dissipation effect of the phase change heat dissipation structure and reduce the assembly difficulty of the phase change heat dissipation structure.

[0046] like Figure 1 As shown, in some embodiments, in the assembled state, the side of the second heat dissipation portion 3 away from the bottom wall of the frame 11 does not exceed the edge of the side of the frame 11. In this way, the protection of the frame 11 to the second heat dissipation portion 3 can be improved, and the probability of damage to the second heat dissipation portion 3 can be reduced. Specifically, as Figure 5 As shown, the second heat dissipation part 3 includes a second passive heat dissipation structure 32, and the second passive heat dissipation structure 32 includes a plurality of second heat dissipation fins arranged in parallel, so that the heat dissipation area of ​​the heat dissipation device can be effectively increased. At the same time, the second heat dissipation fins arranged in parallel can reduce the resistance of gas flow, thereby effectively improving the heat dissipation efficiency of the heat dissipation device. In addition, the side of the second heat dissipation fin away from the bottom wall of the frame 11 is lower than the side wall of the frame 11; in this way, the exposed area of ​​the second heat dissipation fin can be reduced, thereby increasing the probability of the second heat dissipation fin being damaged by external force.

[0047] It should be understood that the above is only a preferred arrangement of the second heat dissipating fins, but the present invention is not limited thereto. For example, adjacent second heat dissipating fins may also be distributed in a trumpet shape.

[0048] Furthermore, in the assembled state, the first heat dissipation part 2 and the second heat dissipation part 3 do not exceed the U-shaped end surface of the frame 11. This reduces the probability of the first heat dissipation part 2 and the second heat dissipation part 3 being damaged by external forces. The principle is the same as above and will not be repeated here.

[0049] It should be understood that the above only takes the first heat dissipation part 2 and the second heat dissipation part 3 including heat dissipation structures with different heat dissipation principles as an example to exemplify how to achieve the difference between the heat dissipation efficiency of the first heat dissipation part 2 and the heat dissipation efficiency of the second heat dissipation part 3, but the present invention is not limited to this. For example, the difference in heat dissipation efficiency between the first heat dissipation part 2 and the second heat dissipation part 3 can be achieved by making the first heat dissipation part 2 and the second heat dissipation part 3 adopt different heat dissipation materials; or, the difference in heat dissipation efficiency between the first heat dissipation part 2 and the second heat dissipation part 3 can be achieved by making the first heat dissipation part 2 and the second heat dissipation part 3 have different heat dissipation areas.

[0050] In some embodiments, the heating component is installed on the side of the bottom wall of the frame 11 away from the groove cavity; on this basis, the first heat dissipation part 2 and the second heat dissipation part 3 can be connected to the heating component through the bottom wall of the frame 11 by thermal conduction, but under this setting mode, the heat dissipation capacity of the first heat dissipation part 2 and the second heat dissipation part 3 will be affected by the frame 11, and thus the best heat dissipation effect cannot be achieved. In view of this problem, in some preferred embodiments, a hole is opened on the bottom wall of the groove cavity to form a first fixed position and a second fixed position, wherein the first fixed position is the installation position of the first heat dissipation part 2, and the second fixed position is the installation position of the second heat dissipation part 3, so that a part of the first heat dissipation part 2 and a part of the second heat dissipation part 3 can be embedded in the bottom of the groove cavity and contact with the heating component; thereby, the heat generated by the heating component can be directly conducted to the first heat dissipation part 2 and the second heat dissipation part 3, thereby fully exerting the heat dissipation capacity of the first heat dissipation part 2 and the second heat dissipation part 3, and improving the heat dissipation effect and heat dissipation efficiency of the heat dissipation device. In addition, the opening on the bottom wall of the groove cavity can also position the first heat dissipation part 2 and the second heat dissipation part 3, thereby improving the stability of the connection between the first heat dissipation part 2 and the second heat dissipation part 3 and the frame 11.

[0051] Further, in some embodiments, a heat conducting plate is provided to enable the first heat dissipation portion 2 and the second heat dissipation portion 3 to penetrate the bottom wall of the frame 11 and contact the heat generating component. Specifically, in an exemplary embodiment, the first heat dissipation portion 2 includes a first heat conducting plate 26, which penetrates the first fixed position and is thermally connected to the high heat generating area and the phase change heat dissipation structure of the heat generating component; the second heat dissipation portion 3 includes a second heat conducting plate 31, which penetrates the second fixed position and is thermally connected to the low heat generating area and the second passive heat dissipation structure 32 of the heat generating component.

[0052] As mentioned above, the first heat dissipation part 2 and the second heat dissipation part 3 are detachably arranged on the heat dissipation frame 1. In some exemplary embodiments, the first heat dissipation part 2 and the second heat dissipation part 3 are detachably connected to the heat dissipation frame 1 through a threaded structure. Specifically, a plurality of screw holes for passing screws are provided on the first fixing position and the second fixing position of the frame 11, and threaded holes are provided at positions corresponding to the screw holes on the first heat dissipation part 2 and the second heat dissipation part 3, and the threads of the threaded holes match the threads of the above-mentioned screws. In this way, the first heat dissipation part 2 and the second heat dissipation part 3 can be fixed to the second fixing position of the frame 11 by screws.

[0053] Of course, in addition to the above connection methods, the first heat dissipation part 2 and / or the second heat dissipation part 3 can also be detachably installed on the heat dissipation frame 1 by means of structures such as snaps.

[0054] In addition, the utility model also provides a heat dissipation system, including a heating component and a heat dissipation device, wherein the heating component includes a heating surface, and the heating surface includes a high heating area and a low heating area, and the heat dissipation device is the above-mentioned heat dissipation device, including a first heat dissipation part 2 and a second heat dissipation part 3, and the first heat dissipation part 2 is thermally connected to the high heating area of ​​the heating component, and the second heat dissipation part 3 is thermally connected to the low heating area of ​​the heating component. It should be noted here that since the heat dissipation system includes the above-mentioned heat dissipation device, the beneficial effects of the heat dissipation system caused by the heat dissipation device are detailed in the above discussion and will not be repeated here.

[0055] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. must be possessed by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not limitation, and the above details do not limit the present invention to be implemented by adopting the above specific details.

[0056] It should also be noted that in the device, apparatus and method of the present invention, each component or each step can be decomposed and / or reassembled, and such decomposition and / or reassembly shall be regarded as an equivalent solution of the present invention.

[0057] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0058] It should be understood that the limiting terms "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present invention are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present invention.

[0059] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the utility model to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A heat dissipation device, It is characterized in that It comprises a heat dissipation frame, and a first heat dissipation part and a second heat dissipation part detachably arranged on the heat dissipation frame, wherein: The heat dissipation frame includes a frame body with a U-shaped groove structure and a first passive heat dissipation structure integrally formed with the frame body. The first heat dissipation part and the second heat dissipation part are arranged in the groove cavity of the frame body and are respectively located on both sides of the first passive heat dissipation structure.

2. The heat dissipation device according to claim 1, It is characterized in that The first heat dissipation unit comprises: A phase-change heat dissipation structure is arranged in the slot cavity of the frame; The protection plate is located on a side of the phase change heat dissipation structure away from the bottom wall of the frame, and in an assembled state, the protection plate is connected to the side wall of the frame.

3. The heat dissipation device according to claim 1, It is characterized in that In the assembled state, a side of the second heat dissipation portion away from the bottom wall of the frame body does not exceed an edge of a side edge of the frame body.

4. The heat dissipation device according to claim 1, It is characterized in that In the assembled state, neither the first heat dissipation portion nor the second heat dissipation portion exceeds the U-shaped end surface of the frame body.

5. The heat dissipation device according to claim 2, It is characterized in that The side of the bottom wall of the frame body away from the slot cavity is the installation side of the heating component; The bottom wall of the groove cavity is provided with an opening to form a first fixing position for installing the first heat dissipation part and a second fixing position for installing the second heat dissipation part, so that a part of the first heat dissipation part and a part of the second heat dissipation part can be embedded in the bottom of the groove cavity and contact the heating component.

6. The heat dissipation device according to claim 5, It is characterized in that The first heat dissipation part includes a first heat conducting plate, which passes through the first fixing position and is thermally connected to the high heat generation area of ​​the heat generating component and the phase change heat dissipation structure at the same time; The second heat dissipation portion includes a second heat conducting plate, which passes through the second fixing position and is thermally connected to the low heat generation area of ​​the heat generating component and the first passive heat dissipation structure.

7. The heat dissipation device according to claim 6, It is characterized in that The phase change heat dissipation structure comprises: A blowing plate assembly, comprising a plurality of blowing plates arranged in parallel, wherein the blowing plates have a phase change cavity inside, and the phase change cavity comprises a heat absorption zone and a phase change zone; The cover plate is arranged on one side of the blowing plate close to the heat absorption zone and is heat-conductingly connected to the heating component through the first heat-conducting plate. The cover plate has a cooling cavity inside that is connected to the phase change cavities of the multiple blowing plates.

8. The heat dissipation device according to claim 7, It is characterized in that A comb plate is arranged between the protective plate and the blowing plate assembly, and a plurality of mounting grooves for fixing the blowing plate are arranged on one side of the comb plate close to the blowing plate assembly, and the mounting grooves are arranged one to one with the blowing plate.

9. The heat dissipation device according to claim 1, It is characterized in that The second heat dissipation part is detachably connected to the frame body via a thread structure.

10. A heat dissipation system, It is characterized in that include: A heating component having a heating surface, wherein the heating surface includes a high heating area and a low heating area; The heat dissipation device is the heat dissipation device according to any one of claims 1 to 9, and is thermally connected to the heat-generating surface.

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