Auxiliary heat dissipation structure

Abstract

The utility model relates to the technical field of heat dissipation efficiency improvement, and discloses an auxiliary heat dissipation structure which comprises a heating device shell, a heat dissipation assembly and a ventilation assembly. A heating device is suitable for being arranged in the heating device shell; the peripheral surface of the heating device shell at least comprises a first wall surface and a second wall surface; the heating device shell is at least provided with a first air inlet part on the first wall surface; at least part of the heat dissipation assembly is attached to the second wall face of the heating device shell, and the heat dissipation assembly is suitable for guiding out heat of the heating device; and the ventilation assembly comprises a fan and a splitter plate, and the splitter plate is suitable for guiding the airflow direction so that at least part of the airflow can be blown to the first air inlet part and at least part of the airflow can be blown to the heat dissipation assembly. According to the utility model, active heat dissipation and passive heat dissipation can be simultaneously carried out, so that the air flow utilization rate is improved, the heat dissipation area is increased, and the ventilation is accelerated, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of improving heat dissipation efficiency, and specifically to an auxiliary heat dissipation structure. Background Technology

[0002] To ensure that the working components operate within their normal temperature range, rapid heat dissipation is typically required. One approach involves applying thermal grease to the surface of the main heat source in conjunction with a thermal pad, transferring heat to the base, where the larger surface area of ​​the base facilitates heat dissipation. However, after prolonged operation at room temperature, this method can lead to a significant temperature rise, exceeding the normal operating temperature range and causing the working components to malfunction.

[0003] Another cooling method involves setting up a fan and fins, with one side of the fins in close contact with the heat source. The fan speeds up the airflow, which improves cooling efficiency compared to passive cooling. However, the downside is that the fan airflow utilization is low, and the fan fin cooling method is limited. Utility Model Content

[0004] In view of this, the present invention provides an auxiliary heat dissipation structure to solve the problems of poor passive heat dissipation effect and low efficiency and limited form of active heat dissipation.

[0005] In a first aspect, this utility model provides an auxiliary heat dissipation structure, comprising:

[0006] A heating element housing, which is adapted to house a heating element; the outer peripheral surface of the heating element housing includes at least a first wall surface and a second wall surface; the heating element housing has a first air inlet on at least the first wall surface.

[0007] The heat dissipation component is at least partially attached to the second wall surface of the housing of the heat-generating device, and is adapted to conduct heat away from the heat-generating device;

[0008] The ventilation assembly includes a fan and a diffuser, the diffuser being adapted to direct airflow so that at least part of the airflow is directed toward the first air intake and at least part of the heat dissipation assembly.

[0009] Beneficial effects: The auxiliary heat dissipation structure of this utility model, through the integrated design of heat dissipation components and ventilation components, enables the heat-generating device to adopt both active and passive heat dissipation methods simultaneously, no longer relying solely on passive heat dissipation, thus improving the heat dissipation efficiency of the heat-generating device; at the same time, the structure design of the diverter plate can improve the utilization rate of fan airflow by directly blowing airflow onto the heat-generating device, and the two heat dissipation methods of active and passive heat dissipation are carried out simultaneously, saving working time.

[0010] In one alternative implementation, the heat dissipation component includes:

[0011] The heat sink has a heat sink body that is attached to the second wall surface, and a plurality of fins extending from the heat sink body toward the side away from the second wall surface.

[0012] Beneficial effects: The heat sink has a heat sink body that fits against the second wall surface, and multiple fins that extend from the heat sink body away from the second wall surface. The heat sink body with a large contact area contacts the housing of the heat-generating device, and heat is conducted to each fin, increasing the area of ​​the passive heat dissipation surface. The structural design of the fins can make the heat dissipation surface have a larger contact area with the airflow, and then, when combined with the fan, it can effectively improve the active heat dissipation efficiency.

[0013] In one alternative implementation, the heat dissipation assembly further includes:

[0014] The heat-conducting base has a receiving groove suitable for accommodating the heat sink, and the heat-conducting base is fixed to the housing of the heat-generating device.

[0015] Beneficial effects: The heat-conducting base has a receiving groove suitable for accommodating the heat sink, and the receiving groove is also suitable for airflow, ensuring that passive and active heat dissipation occur simultaneously, thereby improving heat dissipation efficiency.

[0016] In one alternative embodiment, both the heat sink and the heat-conducting base are made of thermally conductive material, and at least a portion of the heat sink is in contact with the heat-conducting base.

[0017] Beneficial effects: Both the heat sink and the heat-conducting base are made of thermally conductive materials, which can transfer heat quickly. In addition, at least part of the heat sink is in contact with the heat-conducting base, which can further conduct the heat of the heat sink to the heat-conducting base, thereby further increasing the area of ​​the passive heat dissipation surface and improving the heat dissipation efficiency.

[0018] In one optional embodiment, the outer peripheral surface of the heating device housing further includes a third wall surface; the heating device housing further includes: heat dissipation holes formed on the third wall surface; wherein, the third wall surface and the second wall surface are the same wall surface or different wall surfaces.

[0019] Beneficial effects: By opening heat dissipation holes on the third wall, on the one hand, the temperature inside the housing of the heat-generating device can be cooled down as quickly as possible through the heat dissipation holes during the heat generation process; on the other hand, a portion of the airflow from the fan can be smoothly discharged from the housing of the heat-generating device after passing through the heat-generating device. While dissipating heat from the outside of the housing of the heat-generating device, the heat source device is physically cooled, thereby improving heat dissipation efficiency.

[0020] In one alternative embodiment, the ventilation assembly further includes a fan mounting housing having a fan receiving cavity formed therein suitable for accommodating a fan.

[0021] The heat dissipation component is at least partially spaced from the outer peripheral surface of the heat-generating device housing to form a second air intake; the second air intake is adapted to connect the receiving slot to the fan receiving cavity.

[0022] Beneficial effects: The fan mounting cover fixes the fan in the fan housing cavity, stably generating airflow. After passing through the second air intake, the airflow acts on the heat sink in the housing slot, forming a continuous airflow channel and ensuring the operation of the ventilation components.

[0023] In one alternative embodiment, the fan mounting housing has a first airflow guide. Since the fan is placed at an angle relative to the first wall, the airflow direction generated by the fan is at an angle to the first wall. Therefore, the first airflow guide is set at an angle relative to the first wall to guide the airflow toward the receiving groove.

[0024] Beneficial effect: The first guide section guides the airflow from the fan housing cavity to the heat-conducting base's receiving groove, improving airflow utilization.

[0025] In one alternative embodiment, the heat-conducting base is further formed with a second flow guide, which is disposed downstream of the first flow guide along the airflow direction.

[0026] The second guide section is formed on the inner wall of the receiving groove. The second guide section is flared from the end near the fan receiving cavity to the end away from the fan receiving cavity, which is suitable for gradually increasing the ventilation area of ​​the airflow.

[0027] Beneficial effects: After the airflow passes through the fan housing cavity, the first guide section and the second air intake section in sequence, it acts on the second guide section. The second guide section guides the airflow to blow into the housing slot. The design of the flared structure can make the airflow blow evenly and quickly onto the heat sink placed in the housing slot.

[0028] In one alternative embodiment, the heat-conducting base also has an vent hole that communicates with the receiving groove.

[0029] Beneficial effects: The exhaust vent of the heat-conducting base is connected to the receiving groove, allowing the airflow acting on the heat dissipation plate in the receiving groove to be smoothly discharged through the exhaust vent, accelerating air circulation and improving heat dissipation efficiency.

[0030] In one alternative implementation, the housing of the heating element and / or the thermally conductive base are made of metal.

[0031] Beneficial effects: Metal materials have good thermal conductivity. The housing of the heating element and the heat-conducting base are made of metal, which can conduct heat more quickly and improve the working efficiency of the heat dissipation and ventilation components. Attached Figure Description

[0032] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the auxiliary heat dissipation structure of this utility model;

[0034] Figure 2 This is a schematic diagram of the heat dissipation component and the ventilation component of this utility model;

[0035] Figure 3 This is a schematic diagram showing the disassembled state of the auxiliary heat dissipation structure of this utility model;

[0036] Figure 4 This is a front view of the ventilation component of this utility model;

[0037] Figure 5 This is a cross-sectional view of the auxiliary heat dissipation structure of this utility model;

[0038] Figure 6 This is a cross-sectional view of the fins of this utility model.

[0039] Explanation of reference numerals in the attached figures:

[0040] 1. Heating element housing;

[0041] 2. Heat dissipation assembly; 21. Heat sink; 211. Heat sink body; 212. Fins; 22. Thermally conductive base; 221. Receiving groove; 222. Second airflow guide; 223. Exhaust hole; 23. Heat dissipation hole;

[0042] 3. Ventilation assembly; 31. Fan; 32. Splitter plate; 33. Fan mounting cover; 331. Fan housing cavity; 34. First air intake; 35. Second air intake; 36. First air guide. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0044] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0047] This invention provides an auxiliary heat dissipation structure to solve the problems of poor passive heat dissipation and low efficiency and limited form of active heat dissipation.

[0048] The following is combined with Figures 1 to 6 The following describes embodiments of the present invention.

[0049] According to an embodiment of the present invention, an auxiliary heat dissipation structure is provided, comprising:

[0050] The heating element housing 1 is adapted to house the heating element; the outer peripheral surface of the heating element housing 1 includes at least a first wall surface and a second wall surface; the heating element housing 1 has a first air inlet 34 on at least the first wall surface.

[0051] The heat dissipation component 2 is at least partially attached to the second wall surface of the housing 1 of the heat-generating device, and is adapted to conduct heat away from the heat-generating device;

[0052] The ventilation assembly 3 includes a fan 31 and a diffuser 32, the diffuser 32 being adapted to guide the airflow direction so that the airflow is at least partially directed toward the first air intake 34 and at least partially directed toward the heat dissipation assembly 2.

[0053] In this embodiment, the heating device housing 1 has a cavity suitable for accommodating the heating device. The heating device housing 1 can be a sealed housing or an open housing. In this embodiment, an openable sealed housing is preferred.

[0054] In this embodiment, the heat-generating device can be a controller, a central processing unit, etc. Since it generates a lot of heat during operation, it is necessary to dissipate the heat to avoid affecting normal operation.

[0055] In this embodiment, the heat dissipation component 2 is at least partially attached to the second wall surface of the heating device housing 1. The heat dissipation component 2 is disposed outside the heating device housing 1, and the heating device is disposed inside the heating device housing 1 and is at least partially attached to the second wall surface, so as to transfer heat to the heat dissipation component 2, which is also attached to the second wall surface.

[0056] The airflow is generated by the rotation of fan 31, and acts on two parts through the splitter plate 32 to facilitate subsequent heat dissipation and ventilation.

[0057] The auxiliary heat dissipation structure of this utility model, through the integrated design of heat dissipation components and ventilation components, enables the heat-generating device to adopt both active and passive heat dissipation methods simultaneously, no longer relying solely on passive heat dissipation, thus improving the heat dissipation efficiency of the heat-generating device; at the same time, the structure design of the diverter plate can improve the utilization rate of fan airflow by directly blowing airflow onto the heat-generating device, and the two heat dissipation methods of active and passive heat dissipation are carried out simultaneously, saving working time.

[0058] In some embodiments, combined with Figure 6 As shown, the heat dissipation component 2 includes:

[0059] The heat sink 21 has a heat sink body 211 that is attached to the second wall surface, and a plurality of fins 212 extending from the heat sink body 211 toward the side away from the second wall surface.

[0060] The heat sink 21 has a heat sink body 211 that is attached to the second wall surface, and a plurality of fins 212 extending from the heat sink body 211 toward the side away from the second wall surface. The heat sink body 211, which has a larger contact area, contacts the housing 1 of the heat-generating device, and heat is conducted to each fin 212, thereby increasing the area of ​​the passive heat dissipation surface. The structural design of the fins 212 can make the heat dissipation surface have a larger contact area with the airflow, and thus, when combined with the fan 31, it can effectively improve the active heat dissipation efficiency.

[0061] As one implementation, the shape of the fins 212 parallel to the plane of the heat sink body 211 can be curved or flared, etc., and by changing the cross-section, based on the principle of aerodynamics, the airflow speed can be increased and the heat dissipation can be accelerated.

[0062] In some embodiments, combined with Figure 2 As shown, the heat dissipation component also includes:

[0063] The heat-conducting base 22 has a receiving groove 221 suitable for accommodating the heat sink plate, and the heat-conducting base 22 is fixed to the housing 1 of the heat-generating device.

[0064] The heat-conducting base 22 has a receiving groove 221 suitable for accommodating the heat sink 21. By accommodating the heat sink 21 in the receiving groove 221 and fixing the heat-conducting base 22 to the housing 1 of the heat-generating device, the heat sink 21 can be covered and hidden by the heat-conducting base 22, improving the aesthetics. At the same time, the heat-conducting base 22 can protect the heat sink 21 and prevent it from being bumped and deformed.

[0065] The heat-conducting base 22 has a receiving groove 221 that can be configured to accommodate the heat sink 21. At the same time, the receiving groove 221 is suitable for airflow, ensuring that passive heat dissipation and active heat dissipation are carried out simultaneously, thereby improving heat dissipation efficiency.

[0066] In some embodiments, both the heat sink 21 and the heat-conducting base 22 are made of heat-conducting material, and at least a portion of the heat sink 21 is in contact with the heat-conducting base 22.

[0067] In this embodiment, the heat sink 21 and the heat-conducting base 22 can be made of the same material, thereby improving heat transfer efficiency. Alternatively, the heat sink 21 and the heat-conducting base 22 can also be made of different heat-conducting materials.

[0068] For example, both the heat sink 21 and the heat-conducting base 22 can be made of aluminum or aluminum alloy.

[0069] The materials of the heat sink 21 and the heat-conducting base 22 enable heat to be transferred as quickly as possible. The structural design in which at least part of the heat sink 21 is in contact with the heat-conducting base 22 can further increase the area of ​​the passive heat dissipation surface and improve heat dissipation efficiency.

[0070] In some embodiments, combined with Figure 5 As shown, the outer peripheral surface of the heating device housing 1 also includes a third wall surface; the heating device housing 1 also includes: heat dissipation holes 23, which are opened on the third wall surface; wherein, the third wall surface and the second wall surface are the same wall surface or different wall surfaces.

[0071] In this embodiment, the third wall surface can be a wall surface different from the second wall surface, for example: combined with Figure 2 As shown, the first air intake 34 is formed on the first wall surface, which can be the rear side of the heating device housing 1; the heat dissipation assembly 2 is attached to the second wall surface of the heating device housing 1, which can be the bottom surface of the heating device housing 1; the heat dissipation hole 23 is formed on the third wall surface, which can be the front side or top surface of the heating device housing 1 or the two sides adjacent to the front side.

[0072] The heat dissipation hole 23 is opened on the third wall surface. On the one hand, it can make the temperature inside the shell of the heat-generating device cool down as soon as possible through the heat dissipation hole 23 during the heat generation process. On the other hand, it can make part of the airflow of the fan 31 smoothly discharged from the heat-generating device shell 1 after passing through the heat-generating device. While dissipating heat to the outside of the heat-generating device shell 1, it can also physically cool the heat source device and improve the heat dissipation efficiency.

[0073] As one implementation, the shape of the heat dissipation hole 23 can be circular, hexagonal, or a long strip grille, etc.

[0074] In some embodiments, combined with Figure 4 and Figure 5 As shown, the ventilation assembly 3 also includes a fan mounting housing 33, which has a fan receiving cavity 331 formed inside the fan mounting housing 33 to accommodate the fan 31.

[0075] At least a portion of the heat dissipation component 2 is spaced apart from the outer peripheral surface of the heat-generating device housing 1 to form a second air intake 35; the second air intake 35 is adapted to connect the receiving groove 221 with the fan receiving cavity 331.

[0076] The fan mounting cover 33 fixes the fan 31 in the fan housing cavity 331, stably generating airflow. The airflow passes through the second air intake 35 and acts on the heat sink 21 in the housing slot 221, forming a continuous airflow channel and ensuring the operation of the ventilation component 3.

[0077] As one implementation, the shape of the second air intake 35 can be circular, elliptical, rectangular, etc.

[0078] In some embodiments, combined with Figure 5 As shown, the fan mounting cover 33 has a first airflow guide 36. Since the fan 31 is placed at an angle relative to the first wall, the airflow direction generated by the fan 31 is at an angle to the first wall. Therefore, the first airflow guide 36 is set at an angle relative to the first wall to guide the airflow to the receiving groove 221.

[0079] The first guide section 36 guides the airflow from the fan housing cavity 331 to the receiving groove 221 of the heat-conducting base 22, thereby improving the airflow utilization rate.

[0080] As one implementation, the inclined surface of the first guide section 36 can be set as an arc surface or a plane.

[0081] In some embodiments, combined with Figure 3 As shown, the heat-conducting base 22 also has a second flow guide 222, which is disposed downstream of the first flow guide 36 along the airflow direction.

[0082] The second guide section 222 is formed on the inner wall of the receiving groove 221. The second guide section 222 is flared from one end near the fan receiving cavity 331 to the end away from the fan receiving cavity 331, which is suitable for gradually increasing the ventilation area of ​​the airflow.

[0083] After passing through the fan housing cavity, the first guide section, and the second air intake section in sequence, the airflow acts on the second guide section 222. The second guide section 222 guides the airflow to blow into the housing slot 221. The design of the flared structure can make the airflow blow evenly and quickly onto the heat sink 21 placed in the housing slot 221.

[0084] As one implementation, the second air guide 222 structure can be designed with a circular air inlet at the end near the fan housing 331, connected to the second air inlet 35, and a rectangular air outlet at the end away from the fan housing 331, thereby changing the shape of the air inlet / outlet, improving the efficiency of air intake / exhaust, and accelerating air circulation.

[0085] In some embodiments, combined with Figure 3 As shown, the heat-conducting base 22 also has an exhaust hole 223, which is connected to the receiving groove 221.

[0086] The exhaust port 223 of the heat-conducting base 22 is connected to the receiving groove 221, so that the airflow acting on the heat dissipation plate 21 in the receiving groove 221 can be smoothly discharged through the exhaust port 223, thereby accelerating air circulation and improving heat dissipation efficiency.

[0087] In some embodiments, the heating device housing 1 and / or the heat-conducting base 22 are made of metal. Metal has good thermal conductivity. The fact that the heating device housing 1 and the heat-conducting base 22 are made of metal can enable heat to be conducted more quickly and improve the working efficiency of the heat dissipation component 2 and the ventilation component 3.

[0088] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.

Claims

1. An auxiliary heat dissipation structure, characterized in that, include: A heating element housing (1) is provided inside which a heating element is disposed; the outer peripheral surface of the heating element housing (1) includes at least a first wall surface and a second wall surface; the heating element housing (1) has at least a first air inlet (34) on the first wall surface; The heat dissipation component (2) is at least partially attached to the second wall surface of the heating device housing (1) and is adapted to conduct heat out of the heating device; The ventilation assembly (3) includes a fan (31) and a diffuser (32) adapted to direct the airflow so that the airflow is at least partially directed toward the first air intake (34) and at least partially directed toward the heat dissipation assembly (2).

2. The auxiliary heat dissipation structure according to claim 1, characterized in that, The heat dissipation component (2) includes: The heat sink (21) has a heat sink body (211) that is attached to the second wall surface, and a plurality of fins (212) extending from the heat sink body (211) toward the side away from the second wall surface.

3. The auxiliary heat dissipation structure according to claim 2, characterized in that, The heat dissipation assembly (2) also includes: The heat-conducting base (22) has a receiving groove (221) suitable for accommodating the heat sink (21), and the heat-conducting base (22) is fixed to the housing (1) of the heat-generating device.

4. The auxiliary heat dissipation structure according to claim 3, characterized in that, Both the heat sink (21) and the heat-conducting base (22) are made of heat-conducting material, and at least a portion of the heat sink (21) is in contact with the heat-conducting base (22).

5. The auxiliary heat dissipation structure according to claim 1, characterized in that, The outer peripheral surface of the heating device housing (1) also includes a third wall surface; The housing (1) of the heating device further includes: heat dissipation holes (23) formed on the third wall surface; The third wall surface may be the same as or different from the second wall surface.

6. The auxiliary heat dissipation structure according to claim 3, characterized in that, The ventilation assembly (3) further includes: a fan mounting cover (33), wherein a fan receiving cavity (331) suitable for accommodating the fan (31) is formed inside the fan mounting cover (33); The heat dissipation component (2) is at least partially spaced from the outer peripheral surface of the heat-generating device housing (1) to form a second air intake (35); the second air intake (35) is adapted to connect the receiving groove (221) to the fan receiving cavity (331).

7. The auxiliary heat dissipation structure according to claim 6, characterized in that, The fan mounting cover (33) has a first airflow guide (36) which is inclined relative to the first wall surface to guide the airflow toward the receiving groove (221).

8. The auxiliary heat dissipation structure according to claim 7, characterized in that, The heat-conducting base (22) also has a second flow guide (222), which is disposed downstream of the first flow guide (36) along the airflow direction; The second flow guide (222) is formed on the inner wall of the receiving groove (221). The second flow guide (222) is flared from one end near the fan receiving cavity (331) to the end away from the fan receiving cavity (331), which is suitable for gradually increasing the ventilation area of ​​the airflow.

9. The auxiliary heat dissipation structure according to claim 3, characterized in that, The heat-conducting base (22) also has an exhaust hole (223) which is connected to the receiving groove (221).

10. The auxiliary heat dissipation structure according to claim 3, characterized in that, The housing (1) of the heating device and / or the heat-conducting base (22) are made of metal.

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