Cooling fin

Abstract

The utility model discloses a radiating fin, which comprises a first radiating fin, the first radiating fin is opposite to a second radiating fin, a plurality of radiating holes are arranged on the first radiating fin, and a plurality of radiating holes are arranged on the second radiating fin. A first heat dissipation block is connected between the edge of one side of the first heat dissipation sheet and the edge of one side of the second heat dissipation sheet, a second heat dissipation block is connected between the edge of the other side of the first heat dissipation sheet and the edge of the other side of the second heat dissipation sheet, and a heat dissipation channel is arranged between the first heat dissipation block and the second heat dissipation block. And the heat dissipation channels are communicated with the plurality of heat dissipation holes in the first heat dissipation sheet and the second heat dissipation sheet. The radiating fin is reasonable in structural design, the hollow part of the synthesized radiating fin is beneficial to ventilation (namely the radiating channels are matched with the radiating holes in a radiating manner), and the air flowability is greatly improved, so that heat is quickly transmitted out.

Description

Technical Field

[0001] This utility model relates to the field of heat sink technology, and in particular to a heat sink. Background Technology

[0002] Because the IC in the vehicle IVI host generates a lot of heat when it is working, if this heat is not released quickly, it will affect the normal operation of the IC and may even burn out the IC in severe cases. Therefore, when designing the IVI host, we will design a heat sink at the location of the IC to dissipate the heat.

[0003] The two existing stamped aluminum heat sinks are shown below:

[0004] See Figure 1 The first type of existing heat sink (10): A piece of aluminum plate is directly stamped into shape according to the mold design. Some heat dissipation holes are designed in the middle of the aluminum plate to facilitate ventilation and heat dissipation.

[0005] See Figure 2 The second type of existing heat sink (11): A piece of aluminum plate is first stamped into shape according to the model, and then stamped and bent according to the model shape. Some heat dissipation holes are usually designed at the bending point for ventilation and heat dissipation.

[0006] Both types of heat sinks are made from a solid aluminum sheet. Although there are some ventilation holes in the middle, the airflow is still not good. Utility Model Content

[0007] The purpose of this utility model is to provide a heat sink that solves the technical problem that in the prior art, heat sinks are made of a solid aluminum plate and stamped out, which, although they have some heat dissipation holes, still have poor air circulation.

[0008] To achieve the above objectives, the present invention provides a heat sink, comprising a first heat sink and a second heat sink disposed opposite to each other. The first heat sink has a plurality of heat dissipation holes, and the second heat sink has a plurality of heat dissipation holes. A first heat dissipation block is connected between one side edge of the first heat sink and one side edge of the second heat sink, and a second heat dissipation block is connected between the other side edge of the first heat sink and the other side edge of the second heat sink. A heat dissipation channel is provided between the first heat dissipation block and the second heat dissipation block, and the heat dissipation channel communicates with the plurality of heat dissipation holes on the first heat sink and the second heat sink.

[0009] Furthermore, the heat dissipation channel extends in the left-right direction.

[0010] Furthermore, thermally conductive adhesive is applied between the first heat sink and the first heat sink block, and thermally conductive adhesive is applied between the second heat sink and the first heat sink block; thermally conductive adhesive is applied between the first heat sink and the second heat sink block, and thermally conductive adhesive is applied between the second heat sink and the second heat sink block.

[0011] Furthermore, the positions of the plurality of heat dissipation holes on the first heat sink correspond to the positions of the plurality of heat dissipation holes on the second heat sink.

[0012] Furthermore, the first heat sink is riveted to the first heat sink block and the second heat sink through riveting holes.

[0013] In a preferred embodiment, the first heat sink and the second heat sink are in the shape of planar plates, the first heat sink and the second heat sink are distributed in the vertical direction, the first heat sink and the second heat sink are distributed in the front-back direction, and the heat dissipation hole is in the shape of a strip-shaped heat dissipation hole.

[0014] Furthermore, a third heat sink is connected between the middle of the first heat sink and the middle of the second heat sink, and the third heat sink divides the heat dissipation channel into two halves.

[0015] Furthermore, the third heat sink is cross-shaped, thermally conductive adhesive is applied between the first heat sink and the third heat sink, thermally conductive adhesive is applied between the second heat sink and the third heat sink, and the first heat sink, the third heat sink, and the second heat sink are riveted together through riveting holes.

[0016] In another preferred embodiment, the first heat sink and the second heat sink are L-shaped bent plates, with one side of the bent edge of the first heat sink located outside the other side of the bent edge of the second heat sink, and the other side of the bent edge of the first heat sink located outside the other side of the bent edge of the second heat sink.

[0017] Furthermore, the heat dissipation channel is L-shaped, and the heat dissipation hole is L-shaped.

[0018] In summary, the technical solution of this utility model has the following beneficial effects: The structure of this utility model is reasonable. (1) It includes a first heat sink, which is arranged opposite to the second heat sink. The first heat sink has several heat dissipation holes, and the second heat sink has several heat dissipation holes. Thus, the first heat sink and the second heat sink can dissipate heat using several heat dissipation holes. (2) A first heat dissipation block is connected between one side edge of the first heat sink and one side edge of the second heat sink, and a second heat dissipation block is connected between the other side edge of the first heat sink and the other side edge of the second heat sink. A heat dissipation channel is provided between the first heat dissipation block and the second heat dissipation block, and the heat dissipation channel is connected to several heat dissipation holes on the first heat sink and the second heat sink. Thus, the first heat sink, the second heat sink, the first heat dissipation block, and the second heat dissipation block are combined into a hollow heat sink. The hollow part of the combined heat sink is conducive to ventilation (i.e., the heat dissipation channel and the heat dissipation holes are coordinated for heat dissipation), and the air flow is greatly improved, thereby quickly spreading the heat. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the first type of existing heat sink;

[0020] Figure 2 This is a three-dimensional structural diagram of the second type of existing heat sink;

[0021] Figure 3 This is an exploded structural diagram of Embodiment 1 of this utility model;

[0022] Figure 4 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0023] Figure 5 This is a three-dimensional structural schematic diagram of wind direction display in Embodiment 1 of this utility model;

[0024] Figure 6 This is an exploded structural diagram of Embodiment 2 of this utility model;

[0025] Figure 7 This is a three-dimensional structural schematic diagram of Embodiment 2 of this utility model;

[0026] Figure 8 This is a three-dimensional structural diagram illustrating the wind direction in Embodiment 2 of this utility model;

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-First heat sink, 2-Second heat sink, 3-First heat sink block, 4-Second heat sink block, 5-Third heat sink block, 6-Heat dissipation channel, 7-Thermal conductive adhesive, 8-Heat dissipation hole, 9-Riveting hole; 10-First type of existing heat sink, 11-Second type of existing heat sink, 13-Airflow direction, 14-Assembly direction. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0030] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 3 When observing, the observer above is designated as "up" and the observer below as "down." It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below," etc., used in this document to indicate orientation or positional relationships are based on the accompanying drawings and are solely for the purpose of clearly describing this utility model. They do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0031] See Figures 3 to 8 This embodiment provides a heat sink, including a first heat sink 1, with the first heat sink 1 and a second heat sink 2 arranged opposite to each other. The first heat sink 1 has a plurality of heat dissipation holes 8, and the second heat sink 2 has a plurality of heat dissipation holes 8. A first heat dissipation block 3 is connected between one side edge of the first heat sink 1 and one side edge of the second heat sink 2, and a second heat dissipation block 4 is connected between the other side edge of the first heat sink 1 and the other side edge of the second heat sink 2. A heat dissipation channel 6 is provided between the first heat dissipation block 3 and the second heat dissipation block 4, and the heat dissipation channel 6 communicates with the plurality of heat dissipation holes 8 on the first heat sink 1 and the second heat sink 2. Function: (1) By including a first heat sink, with the first heat sink and the second heat sink arranged opposite to each other, and the first heat sink having a plurality of heat dissipation holes, the first heat sink and the second heat sink can dissipate heat using the plurality of heat dissipation holes. (2) A first heat sink block is connected between one side edge of the first heat sink and one side edge of the second heat sink, and a second heat sink block is connected between the other side edge of the first heat sink and the other side edge of the second heat sink. A heat dissipation channel is provided between the first heat sink block and the second heat sink block, and the heat dissipation channel is connected to several heat dissipation holes on the first heat sink and the second heat sink block. Thus, the first heat sink block, the second heat sink block, the first heat sink block, and the second heat sink block are combined into a hollow heat sink. The hollow part of the combined heat sink block is conducive to ventilation (i.e., the heat dissipation channel and the heat dissipation holes are matched for heat dissipation), and the air flow is greatly improved, so that the heat is quickly spread out.

[0032] Specifically, heat dissipation channel 6 runs through the entire space from left to right. Function: It can participate in... Figure 5and Figure 8 The airflow 13 can pass through the heat dissipation channel 6 in the left and right directions, thus better removing heat.

[0033] Specifically, thermally conductive adhesive 7 is applied between the first heat sink 1 and the first heat sink 3, and between the second heat sink 2 and the first heat sink 3; thermally conductive adhesive 7 is also applied between the first heat sink 1 and the second heat sink 4, and between the second heat sink 2 and the second heat sink 4. Function: The thermally conductive adhesive 7 improves the thermal conductivity between the first heat sink 1 and the second heat sink 2, the first heat sink 3, and the second heat sink 4. With thermally conductive adhesive on both sides, the heat dissipation efficiency is higher.

[0034] Specifically, several ventilation holes 8 on the first heat sink 1 correspond to several ventilation holes 8 on the second heat sink 2. Function: By aligning the ventilation holes on the first heat sink 1 with those on the second heat sink 2, ventilation and heat dissipation are improved.

[0035] Specifically, the first heat sink 1 is riveted to the first heat sink 3 and the second heat sink 2 through riveting holes 9, and the first heat sink 1 is riveted to the second heat sink 4 and the second heat sink 2 through riveting holes 9. Function: The riveting process connects the first heat sink 1, the second heat sink 2, the first heat sink 3, the second heat sink 4, and the thermally conductive adhesive into a hollow heat sink.

[0036] In Example 1, the first heat sink 1 and the second heat sink 2 are planar plates, distributed vertically, while the first heat sink 3 and the second heat sink 4 are distributed horizontally. The heat dissipation holes 8 are strip-shaped. Function: See [link / reference]. Figure 3 In Example 1, assembly direction 14 can be performed from top to bottom, and the flat plate shape can facilitate the heat dissipation needs of planar heat dissipation scenarios.

[0037] Specifically, a third heat sink 5 connects the middle of the first heat sink 1 and the middle of the second heat sink 2, dividing the heat dissipation channel 6 into two halves. Function: Because if necessary, an additional heat sink may be placed in the middle to enhance heat conduction.

[0038] Specifically, the third heat sink 5 is cross-shaped. Thermally conductive adhesive 7 is applied between the first heat sink 1 and the third heat sink 5, and thermally conductive adhesive 7 is applied between the second heat sink 2 and the third heat sink 5. The first heat sink 1, the third heat sink 5, and the second heat sink 2 are riveted together through riveting holes 9. Function: The cross-shaped third heat sink 5 enhances the heat dissipation cooperation between the middle of the first heat sink 1 and the middle of the second heat sink 2.

[0039] In Example 2, the first heat sink 1 and the second heat sink 2 are L-shaped bent plates. One bent edge of the first heat sink 1 is located outside the other bent edge of the second heat sink 2, and the other bent edge of the first heat sink 1 is located outside the other bent edge of the second heat sink 2. Function: See [link / reference]. Figure 6 In Embodiment 2, assembly direction 14 can be performed from top to bottom and from back to front, and the L-shaped bent plate shape can facilitate the heat dissipation needs of L-shaped heat dissipation scenarios. Preferably, one side bent edge of the first heat sink 1 is located at the top of one side bent edge of the second heat sink 2, and the other side bent edge of the first heat sink 1 is located at the back of the other side bent edge of the second heat sink 2.

[0040] Specifically, the heat dissipation channel 6 is L-shaped, and the heat dissipation hole 8 is L-shaped. Function: The L-shaped heat dissipation channel and holes better fit the L-shaped bent plate-shaped first heat sink 1 and second heat sink 2.

[0041] In actual production:

[0042] 1. First, stamp two thin heat sinks with identical internal holes and matching edges;

[0043] 2. Place a heat sink block on each side of the two heat sinks with the same hole positions, and apply a layer of thermal adhesive evenly. (The shape of the heat sink block should be consistent with the shape of the edge of the heat sink. If necessary, an additional heat sink block should also be placed in the middle to enhance the heat conduction effect.)

[0044] 3. Use riveting to rivet two thinner heat sinks with the same hole positions and matching edges to the heat sink block in the middle to form a complete hollow heat sink.

[0045] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A heat sink, comprising a first heat sink (1), characterized in that: The first heat sink (1) and the second heat sink (2) are arranged opposite to each other. The first heat sink (1) is provided with a plurality of heat dissipation holes (8), and the second heat sink (2) is provided with a plurality of heat dissipation holes (8). A first heat dissipation block (3) is connected between one side edge of the first heat sink (1) and one side edge of the second heat sink (2). A second heat dissipation block (4) is connected between the other side edge of the first heat sink (1) and the other side edge of the second heat sink (2). A heat dissipation channel (6) is provided between the first heat dissipation block (3) and the second heat dissipation block (4). The heat dissipation channel (6) communicates with the plurality of heat dissipation holes (8) on the first heat sink (1) and the second heat sink (2).

2. The heat sink according to claim 1, characterized in that: The heat dissipation channel (6) runs through the left and right directions.

3. The heat sink according to claim 1, characterized in that: Thermal adhesive (7) is applied between the first heat sink (1) and the first heat sink block (3), and thermal adhesive (7) is applied between the second heat sink (2) and the first heat sink block (3); thermal adhesive (7) is applied between the first heat sink (1) and the second heat sink block (4), and thermal adhesive (7) is applied between the second heat sink (2) and the second heat sink block (4).

4. A heat sink according to claim 1, characterized in that: The plurality of heat dissipation holes (8) on the first heat sink (1) correspond to the positions of the plurality of heat dissipation holes (8) on the second heat sink (2).

5. A heat sink according to claim 1, characterized in that: The first heat sink (1) is riveted to the first heat sink (3) and the second heat sink (2) through the riveting hole (9), and the first heat sink (1) is riveted to the second heat sink (4) and the second heat sink (2) through the riveting hole (9).

6. A heat sink according to any one of claims 1 to 5, characterized in that: The first heat sink (1) and the second heat sink (2) are in the shape of planar plates. The first heat sink (1) and the second heat sink (2) are distributed in the vertical direction. The first heat sink (3) and the second heat sink (4) are distributed in the front-back direction. The heat dissipation hole (8) is in the shape of a strip-shaped heat dissipation hole.

7. A heat sink according to any one of claims 1 to 5, characterized in that: A third heat sink (5) is connected between the middle of the first heat sink (1) and the middle of the second heat sink (2), and the third heat sink (5) divides the heat dissipation channel (6) into two halves.

8. A heat sink according to claim 7, characterized in that: The third heat sink (5) is cross-shaped. Thermal adhesive (7) is applied between the first heat sink (1) and the third heat sink (5). Thermal adhesive (7) is applied between the second heat sink (2) and the third heat sink (5). The first heat sink (1), the third heat sink (5), and the second heat sink (2) are riveted together through riveting holes (9).

9. A heat sink according to any one of claims 1 to 5, characterized in that: The first heat sink (1) and the second heat sink (2) are L-shaped bent plates. One side of the bent edge of the first heat sink (1) is located outside the one side of the bent edge of the second heat sink (2), and the other side of the bent edge of the first heat sink (1) is located outside the other side of the bent edge of the second heat sink (2).

10. A heat sink according to claim 9, characterized in that: The heat dissipation channel (6) is L-shaped, and the heat dissipation hole (8) is L-shaped.

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