Easily-disassembled heat dissipation device

Abstract

The utility model relates to a heat dissipation device easy to disassemble. The heat dissipation device comprises a fin group, a heat pipe, a locking ring and a substrate. The fin group comprises a plurality of fins distributed in an array and a plurality of clamping strips clamped on the side edges of the fins. And each fin is provided with an annular serial connection part. And the fins are locked and molded through the clamping strips in a clamping manner. And the heat pipe passes through the serial connection part so as to realize serial connection with each fin. The area, extending out of the fin set, of the heat pipe is provided with a flat contact face. The multiple locking rings are distributed at the penetrating-in ends and the penetrating-out ends of the heat pipes in the fin set, and therefore the relative positions of the heat pipes and the fin set are locked. One surface of the substrate is provided with a mounting surface for mounting a heat dissipation target. The heat pipe penetrates into the substrate, and the contact surface is flush with the mounting surface. The fin set is shaped and detachably connected with the heat pipe through the clamping strip and the locking ring, welding treatment is omitted, the environment-friendly requirement is met, and the fin set can be easily detached so as to meet the requirements for storage, transportation and cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of heat dissipation equipment, in particular to an easily disassembled heat dissipation device. Background Art

[0002] A heat dissipation device is a tool used to improve the heat dissipation efficiency of electronic equipment. According to the cooling medium and structural characteristics it relies on, it can be roughly classified into several categories, including: air-cooled radiators, water-cooled radiators, heat pipe radiators, heat sinks, etc. For a heat pipe radiator, its basic structure is to connect a fin group in series through a heat pipe, wherein one end or a certain area of ​​the heat pipe is used to contact the electronic device that needs to dissipate heat (i.e., the heat source, or the heat dissipation target), and the two-phase change in the heat pipe is used to transfer heat to other areas of the heat pipe (the heat pipe itself contains a liquid refrigerant for realizing the gas-liquid two-phase change and a capillary structure for guiding the reflux of the liquid refrigerant). Then, the heat is dissipated to the external environment using a fin group connected in series with the heat pipe. The fin group includes a plurality of fins arranged in an array, which can provide a larger heat dissipation area.

[0003] In traditional heat pipe radiators, welding treatment is required between the heat pipe and the fin group to achieve the purpose of fixation. The current fins are mainly aluminum sheets (based on the comprehensive consideration of thermal conductivity, cost price, and density). The surface of the aluminum sheet will produce a dense oxide layer, which makes it difficult for the solder to adhere stably, so it is usually necessary to first perform surface treatment on the aluminum sheet, such as nickel plating. After the heat pipe and the fin group are connected in series, the solder paste is injected into the gap between the heat pipe and the fin. After the solder paste cools, it forms the solder required for bonding. The disadvantages of this traditional design are: first, with the increasingly stringent environmental protection requirements, the wastewater generated by nickel plating is difficult to handle, which is not conducive to sustainable development; second, the heat pipe and the fin group are welded to form a non-detachable structure. Not only does it need to be stored and transported in the state of a finished product, it takes up a large space, and the fin group is a structure that is very easy to accumulate dust. The non-detachable design makes cleaning and maintenance very difficult. Utility Model Content

[0004] Based on this, the utility model provides an easily disassembled heat dissipation device, which uses a clamping strip and a locking ring to achieve the shaping of the fin group and the detachable connection with the heat pipe. It not only eliminates the need for welding and meets environmental protection requirements, but also can be easily disassembled to meet the needs of storage, transportation, and cleaning.

[0005] An easily disassembled heat dissipation device, comprising:

[0006] Fin group; the fin group comprises: a plurality of fins distributed in an array and a plurality of clips connected to the sides of the fins; each fin is provided with an annular serial connection portion; each side of each fin is provided with a first clip groove, and the depth of the first clip groove is D1; ​​each side of each fin is clipped with at least one clip groove through the first clip groove; the clip groove is provided with second clip grooves arranged in sequence along the length direction of the clip groove, and the depth of the second clip groove is D2; the first clip groove and the second clip groove are in an orthogonal bite state; the width of the clip groove is D3, and D3≤D1+D2; each fin is locked and formed by the clip groove in a clip connection manner;

[0007] A heat pipe is arranged on the fin group; the heat pipe passes through the series connection part to realize the series connection with each fin; the area where the heat pipe extends outside the fin group is provided with a flat contact surface;

[0008] A locking ring sleeved on the heat pipe; there are multiple locking rings distributed at the entry and exit ends of the heat pipe at the fin group, thereby locking the relative position of the heat pipe and the fin group; and

[0009] A substrate connected to a heat pipe; one side of the substrate is provided with a mounting surface for mounting a heat dissipation target; the heat pipe penetrates the substrate and the contact surface is flush with the mounting surface.

[0010] When assembling the above-mentioned easily disassembled heat dissipation device, each fin is inserted into one of the card strips in turn, and the first card slot and the second card slot are engaged with each other to preliminarily shape the fin group. Then the remaining card strips are connected to the fins, and the spacing between all the fins is locked, so that the fin group is fixed and formed. At the same time, the sum of the depths of the first card slot and the second card slot is not less than the width of the card strip, so that the card strip will not bulge outward relative to the edge of the side of the fin, reducing the risk of the card strip falling off. After the fin group is formed, the heat pipe is inserted into the substrate, and the heat pipe is inserted into the fin group, and then locked by the locking ring. When in use, the heat dissipation target is mounted on the mounting surface of the substrate so that the contact surface of the heat dissipation target and the heat pipe is closely attached, and the heat dissipation target and the substrate are used to clamp and fix the heat pipe. Through the above design, the fin group is shaped and the detachable connection with the heat pipe is realized by the card strip and the locking ring, which not only eliminates the welding process and meets the environmental protection requirements, but also can be easily disassembled to meet the needs of storage, transportation, and cleaning.

[0011] In one embodiment, the locking ring is provided with an adjustable screw to adjust the tightness of the heat pipe clamping. Considering that the heat pipe has a cavity, the tightness of the heat pipe clamping can be appropriately adjusted by rotating the adjustable screw while meeting the fixing requirements to avoid damaging the heat pipe.

[0012] In one embodiment, the fins and the clips are both made of aluminum sheets.

[0013] In one embodiment, there are multiple heat pipes, and the contact surfaces of the heat pipes are arranged side by side. The arrangement of multiple heat pipes is conducive to improving heat dissipation efficiency.

[0014] In one embodiment, the easily disassembled heat dissipation device further includes: an auxiliary mounting plate; the auxiliary mounting plate is located on the side of the base plate opposite to the mounting surface; both ends of the auxiliary mounting plate extend to the outside of the base plate and are provided with bolts for connecting the heat dissipation target. The auxiliary mounting plate can be used to install some heat dissipation targets that are not convenient to be directly installed on the base plate, thereby improving versatility.

[0015] In one embodiment, a spring is sleeved on the bolt; the spring is used to adjust the tightness of the connection between the auxiliary mounting plate and the heat dissipation target. By adjusting the locking depth of the bolt, the compression degree of the spring is adjusted, and the spring is used to provide a locking force with an elastic space, thereby reducing the probability of damaging the heat dissipation target while ensuring the stability of the installation.

[0016] In one embodiment, the easily disassembled heat dissipation device further comprises: a fan detachably mounted on the fin group. The fan can generate airflow to accelerate the heat dissipation rate of the fin group, thereby improving the heat dissipation efficiency.

[0017] In one embodiment, the fan and the fin group are connected by a clip spring, and the fin is provided with a hook groove for connecting the clip spring. The fan and the fin group are connected by the clip spring, which is convenient for assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional view of an easily disassembled heat dissipation device according to the first embodiment of the utility model;

[0019] Figure 2 for Figure 1 An enlarged view of a portion A of the easily disassembled heat dissipation device shown;

[0020] Figure 3 for Figure 1 An exploded view of the heat sink shown as being easily disassembled;

[0021] Figure 4 for Figure 3 An enlarged view of a portion B of the easily disassembled heat dissipation device shown;

[0022] Figure 5 for Figure 3 An enlarged view of a portion C of the easily disassembled heat sink shown;

[0023] Figure 6 This is a three-dimensional view of an easily disassembled heat dissipation device according to the second embodiment of the present invention.

[0024] The meanings of the symbols in the accompanying drawings are:

[0025] 100-Easily disassembled heat sink;

[0026] 10-fin group, 11-fin, 111-serial connection part, 112-first slot, 113-hook slot, 12-clip strip, 121-second slot;

[0027] 20- heat pipe;

[0028] 30-locking ring;

[0029] 40-substrate;

[0030] 50-auxiliary mounting plate, 51-bolt, 52-spring;

[0031] 60- fan;

[0032] 70-Circlip. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0039] Embodiment 1

[0040] like Figures 1 to 5 As shown, it is an easily disassembled heat dissipation device 100 according to an embodiment of the present invention.

[0041] like Figure 1 As shown, the easily disassembled heat dissipation device 100 includes: a fin group 10, a heat pipe 20 inserted into the fin group 10, a locking ring 30 sleeved on the heat pipe 20, and a substrate 40 connected to the heat pipe 20. Among them, it is basically used to install a heat dissipation target (i.e., a heat source or an object to be dissipated), and the heat dissipation target is in contact with the heat pipe 20. The heat pipe 20 is used to transfer the heat of the heat dissipation target to the fin group 10, and dissipate the heat to the surrounding environment through the fin group 10.

[0042] Below, combined Figures 1 to 5 , the above-mentioned easily disassembled heat dissipation device 100 is further described.

[0043] like Figure 2 and Figure 3 As shown, the fin set 10 includes: a plurality of fins 11 distributed in an array and a plurality of clips 12 clipped to the sides of the fins 11. Figure 3 As shown, each fin 11 is provided with an annular serial connection portion 111 (the annular serial connection portion 111 can provide a larger contact area for heat transfer between the fin 11 and the heat pipe 20, but the serial connection portion 111 does not have the function of locking the relative position of the two). Figure 4 As shown, each side of each fin 11 is provided with a first slot 112, and the depth of the first slot 112 is D1. Each side of each fin 11 is connected to at least one clip 12 through the first slot 112. Figure 5 As shown, the card strip 12 is provided with a plurality of second card slots 121 which are sequentially spaced apart along the length direction of the card strip 12, and the depth of the second card slots 121 is D2. Figure 2 As shown, the first card slot 112 and the second card slot 121 are in an orthogonal engagement state. Figure 5 As shown, the width of the clamping strip 12 is D3, and D3≤D1+D2. Each fin 11 is locked and formed by the clamping strip 12 in a clamping manner.

[0044] For example, in this embodiment, the number of fins 11 is fourteen, and the number of clips 12 is four. The overall shape of the fin 11 is rectangular, and each side of the fin 11 is clipped with a clip 12, which corresponds to that each side of each fin 11 is provided with a first clip slot 112, and the clip strip 12 is provided with fourteen second clip slots 121. The width of the first clip slot 112, the width of the second clip slot 121, the sheet thickness of the fin 11, and the sheet thickness of the clip strip 12 are all the same.

[0045] In this embodiment, for the fin group 10, the fins 11 and the strips 12 can both be used as heat dissipation media, so preferably, the fins 11 and the strips 12 are both made of aluminum sheets. It should be noted that the fins 11 and the strips 12 can also be made of other sheets with good thermal conductivity, such as copper sheets.

[0046] Combination Figure 1 and Figure 3 As shown, the heat pipe 20 passes through the serial connection portion 111 to achieve serial connection with each fin 11, and the area where the heat pipe 20 extends outside the fin group 10 is provided with a flat contact surface (see Figure 3 The bottom end of the heat pipe 20 is a flat surface, which is not marked in the figure due to viewing angle obstruction).

[0047] In order to improve the heat dissipation efficiency, multiple heat pipes 20 can be arranged for parallel heat conduction. The number of heat pipes 20 is multiple, and the contact surfaces of each heat pipe 20 are arranged side by side. The arrangement of multiple heat pipes 20 is conducive to improving the heat dissipation efficiency. For example, Figure 3As shown, in this embodiment, the number of the heat pipes 20 is four, and the heat pipes 20 are U-shaped. Both ends of the heat pipe 20 (corresponding to the open ends of the U-shape) are inserted into the fin group 10, and the bottom end of the heat pipe 20 (corresponding to the bent portion of the U-shape) is connected to the substrate 40, and the contact surface is arranged on the side of the heat pipe 20 opposite to the substrate 40.

[0048] Combination Figure 1 and Figure 3 As shown, there are multiple locking rings 30 and they are distributed at the insertion end and the exit end of the heat pipe 20 in the fin group 10, so as to lock the relative position of the heat pipe 20 and the fin group 10. For example, in this embodiment, four locking rings 30 are provided, two of which are distributed at the insertion end of the heat pipe 20 in the fin group 10, and the other two locking rings 30 are distributed at the exit end of the heat pipe 20 in the fin group 10.

[0049] In order to better assemble or disassemble, the locking ring 30 can also be configured accordingly. Figure 1 As shown, the locking ring 30 may be provided with an adjustable screw (not shown) to adjust the tightness of the heat pipe 20. Considering that the heat pipe 20 has a cavity, the tightness of the heat pipe 20 can be appropriately adjusted by rotating the adjustable screw while meeting the fixing requirements to avoid damaging the heat pipe 20.

[0050] like Figure 3 As shown, one side of the substrate 40 is provided with a mounting surface for mounting a heat dissipation target (the mounting surface is Figure 3 (It is set downwards, so it is not marked). Figure 1 As shown, the heat pipe 20 penetrates into the base plate 40 and the contact surface is flush with the mounting surface.

[0051] In addition, if Figure 1 and Figure 3 As shown, in this embodiment, the easily disassembled heat dissipation device 100 may further include: an auxiliary mounting plate 50. The auxiliary mounting plate 50 is located on the side of the substrate 40 facing away from the mounting surface. Both ends of the auxiliary mounting plate 50 extend to the outside of the substrate 40 and are provided with bolts 51 for connecting the heat dissipation target. The auxiliary mounting plate 50 can be used to install some heat dissipation targets that are not convenient to be directly installed on the substrate 40, thereby improving versatility.

[0052] Furthermore, if Figure 1 and Figure 3 As shown, a spring 52 is sleeved on the bolt 51. The spring 52 is used to adjust the tightness of the connection between the auxiliary mounting plate 50 and the heat dissipation target. By adjusting the locking depth of the bolt 51, the compression degree of the spring 52 is adjusted, and the spring 52 is used to provide a locking force with an elastic space, thereby reducing the probability of damaging the heat dissipation target while ensuring the stability of the installation.

[0053] Brief description of working principle:

[0054] Can be combined Figure 2 , Figure 4 ,as well as Figure 5 During assembly, each fin 11 is inserted into one of the clips 12 in turn, and the first clip slot 112 and the second clip slot 121 are engaged with each other to preliminarily shape the fin group 10. Then the remaining clips 12 are engaged with the fins 11 to lock the spacing between all the fins 11, so that the fin group 10 is fixed and formed. At the same time, the sum of the depths of the first clip slot 112 and the second clip slot 121 is not less than the width of the clip 12, so that the clip 12 will not bulge outward relative to the edge of the side of the fin 11, reducing the risk of the clip 12 falling off. After the fin group 10 is formed, the heat pipe 20 is inserted into the substrate 40, and the heat pipe 20 is inserted into the fin group 10, and then locked by the locking ring 30. When in use, the heat dissipation target is mounted on the mounting surface of the substrate 40, so that the contact surface of the heat dissipation target and the heat pipe 20 is in close contact, and the heat pipe 20 is clamped and fixed by the heat dissipation target and the substrate 40.

[0055] The easily disassembled heat dissipation device 100 uses the clamping strip 12 and the locking ring 30 to achieve the shaping of the fin group 10 and the detachable connection with the heat pipe 20, which not only eliminates the need for welding and meets environmental protection requirements, but also can be easily disassembled to meet the needs of storage, transportation, and cleaning.

[0056] In addition, since the spacing between two adjacent fins 11 can be locked by the second slots 121 of the clamping strip 12, in some embodiments, second slots 121 with smaller spacing can be prefabricated on the clamping strip 12. When assembling the fins 11, adjacent second slots 121 or multiple second slots 121 are selected to clamp the fins 11 at intervals according to the spacing requirements of different fins 11.

[0057] Embodiment 2

[0058] like Figure 6 As shown, it is an easily disassembled heat dissipation device 100 according to another embodiment of the present invention.

[0059] The difference between this embodiment and the first embodiment is that: Figure 6 As shown, in this embodiment, the easily disassembled heat dissipation device 100 may further include: a fan 60 detachably mounted on the fin assembly 10 .

[0060] The fan 60 can generate airflow, and the airflow flows through the gap between two adjacent fins 11 to take away part of the heat of the fins 11, thereby accelerating the heat dissipation rate of the fin group 10, thereby improving the heat dissipation efficiency.

[0061] Furthermore, in order to achieve quick disassembly and assembly, a snap-on method can be used to achieve a detachable connection of the fan 60. Figure 6 As shown, in this embodiment, the fan 60 and the fin group 10 are clamped by a clamping spring 70, and the fin 11 is provided with a hook groove 113 for clamping the clamping spring 70. The fan 60 and the fin group 10 are clamped by the clamping spring 70, which is convenient for disassembly and assembly.

[0062] The other structures of this embodiment are the same as those of the first embodiment and can also achieve the beneficial effects of the first embodiment, so they will not be described in detail here.

[0063] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An easily disassembled heat dissipation device, characterized in that: include: Fin set; The fin group includes: a plurality of fins distributed in an array and a plurality of clips connected to the sides of the fins; each of the fins is provided with a ring-shaped serial connection portion; each side of each of the fins is provided with a first clip groove, and the depth of the first clip groove is D1; ​​each side of each of the fins is clipped with at least one of the clips through the first clip groove; the clips are provided with second clip grooves arranged in sequence along the length direction of the clips, and the depth of the second clip grooves is D2; the first clip grooves and the second clip grooves are in an orthogonal bite state; the width of the clip strip is D3, and D3≤D1+D2; each of the fins is locked and formed by the clip strips in a clip connection manner; A heat pipe is arranged on the fin group; the heat pipe passes through the series connection part to realize the series connection with each of the fins; the area where the heat pipe extends to outside the fin group is provided with a flat contact surface; A locking ring sleeved on the heat pipe; the locking rings are multiple and distributed at the entry and exit ends of the heat pipe at the fin group, so as to lock the relative position of the heat pipe and the fin group; and A substrate connected to the heat pipe; one side of the substrate is provided with a mounting surface for mounting a heat dissipation target; the heat pipe penetrates the substrate and the contact surface is flush with the mounting surface.

2. The easily disassembled heat dissipation device according to claim 1, characterized in that: The locking ring is provided with an adjustable screw to adjust the tightness of clamping the heat pipe.

3. The easily disassembled heat dissipation device according to claim 1, characterized in that: The fins and the clips are both made of aluminum sheets.

4. The easily disassembled heat dissipation device according to claim 1, characterized in that: There are multiple heat pipes, and the contact surfaces of the heat pipes are arranged side by side.

5. The easily disassembled heat dissipation device according to claim 1, characterized in that: Also includes: Auxiliary mounting plate; the auxiliary mounting plate is located on the side of the substrate opposite to the mounting surface; both ends of the auxiliary mounting plate extend to the outside of the substrate and are provided with bolts for connecting the heat dissipation target.

6. The easily disassembled heat dissipation device according to claim 5, characterized in that: A spring is sleeved on the bolt; the spring is used to adjust the tightness of the connection between the auxiliary mounting plate and the heat dissipation target.

7. The easily disassembled heat dissipation device according to any one of claims 1 to 6, characterized in that: Also includes: A fan detachably mounted on the fin assembly.

8. The easily disassembled heat dissipation device according to claim 7, characterized in that: The fan and the fin group are clamped together by a clamping spring; and the fin is provided with a hook groove for clamping the clamping spring.

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