Heat dissipation piece and circuit board with same

Abstract

The utility model discloses a heat dissipation piece and a circuit board with the same, which comprise a circuit board, and a heat dissipation plate is fixedly connected in a heat dissipation groove; a heat dissipation mounting mechanism is arranged at the top end of the heat dissipation plate, the heat dissipation mounting mechanism comprises fins, a plurality of insertion grooves are formed in the top end of the heat dissipation plate at equal intervals, and the fins are connected with inner cavities of the insertion grooves correspondingly; the cooling fins are fixedly connected to the top ends of the fins; the fixing assembly is fixedly connected to the top end of the heat dissipation plate; and the cooling fins are connected with the fixing assembly through the clamping assembly. By means of the arrangement mode that the fins, the cooling fins, the fixing assembly and the clamping assembly are matched, when disassembly is needed, the rotating rod in the fixing assembly is taken out, the connecting rod can be pushed through the rotating rod, the clamping rod is extruded out through the extrusion block on the connecting rod, and then the fins and the cooling fins can be taken out, operation is easy and convenient, and disassembly is convenient. And the device does not occupy too much space and is convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field related to circuit boards, and in particular to a heat sink and a circuit board having the same. Background Art

[0002] Circuit boards, also known as circuit boards, are mainly used to connect various electronic components in electronic devices and serve as structural supports. When electronic devices are working, they consume power to varying degrees, and the intensity of heat generation varies with the power consumption, resulting in local temperature rise, large-area temperature rise, short-term temperature rise, and long-term temperature rise on the circuit board. If the heat is not dissipated in time, some components on the circuit board will fail due to overheating.

[0003] When an existing circuit board is in use, the high temperature inside the circuit board is generally dissipated by using heat dissipation parts such as heat dissipation fins in conjunction with an externally mounted fan. However, the heat dissipation fins and the fan will accumulate a lot of dust after long-term use. If they are not cleaned in time, the heat dissipation effect will be affected. The heat dissipation fins are generally fixed to the circuit board by screws, which is inconvenient to disassemble and clean. Utility Model Content

[0004] The purpose of the utility model is to provide a heat sink to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a heat sink, comprising a circuit board, a heat sink is provided in the middle of the circuit board, a heat sink is fixedly connected to the inside of the heat sink;

[0006] A heat dissipation installation mechanism is provided at the top of the heat dissipation plate, and the heat dissipation installation mechanism comprises:

[0007] Fins, a plurality of slots are equidistantly provided at the top of the heat sink, and a plurality of fins are respectively connected with the inner cavities of the plurality of slots by sliding and interlacing;

[0008] A heat sink fixedly connected to top ends of the plurality of fins;

[0009] A fixing component, wherein the fixing component is fixedly connected to the top of the heat dissipation plate;

[0010] A clamping assembly, wherein the heat sink is connected to the fixing assembly via the clamping assembly.

[0011] Preferably, the fixing assembly comprises:

[0012] A fixing plate, wherein a plurality of the fixing plates are fixedly connected to the top of the heat dissipation plate;

[0013] Extrusion block, a plurality of fixing plates are provided with a clamping groove on one side close to the fin, and the extrusion block is slidably connected with the inner cavity of the clamping groove;

[0014] A connecting rod, one end of which is fixedly connected to the extrusion block, and the other end of which is slidably connected to the inner wall of the clamping groove;

[0015] A rotating rod, a rotating groove is provided on one side of the plurality of fixing plates away from the fins, the rotating rod is rotatably connected with the connecting rod, and the rotating rod is located inside the rotating groove.

[0016] Preferably, a rubber hemisphere is fixedly connected to the bottom end of the rotating rod to abut against the bottom end of the inner wall of the rotating groove.

[0017] Preferably, the clamping assembly comprises:

[0018] A clamping strip, wherein a plurality of grooves are formed on the top of the heat sink, and a plurality of the clamping strips are respectively connected with the inner cavities of the plurality of grooves by sliding and interlacing;

[0019] A clamping rod, both sides of the clamping strip are provided with elastic grooves, one end of the clamping rod is slidably inserted and connected with the inner cavity of the clamping groove, the other end of the clamping rod is slidably inserted and connected with the inner cavity of the elastic groove, and one end of the clamping rod is provided with an inclined surface;

[0020] A compression spring is located inside the elastic groove.

[0021] Preferably, one end of the compression spring is fixedly connected to the clamping rod, and the other end of the compression spring is fixedly connected to the inner wall of the elastic groove.

[0022] Preferably, the clamping assembly further comprises:

[0023] The limit blocks are fixedly connected to the top and bottom ends of the clamping rod respectively, the top and bottom ends of the inner wall of the elastic groove are provided with limit grooves, and the limit blocks are slidably inserted and connected with the inner cavity of the limit groove.

[0024] Another object of the present invention is to provide a circuit board, wherein the circuit board comprises the above-mentioned heat sink.

[0025] Technical effects and advantages of the utility model:

[0026] The utility model utilizes the arrangement mode of matching fins, heat sinks, fixing components and clamping components. The fins and heat sinks can be fixed on the heat sink through the clamping components, so as to facilitate the heat dissipation of the circuit board. When disassembly is needed, it is only necessary to take out the rotating rod in the fixing component, and then the connecting rod can be pushed by the rotating rod, so that the extrusion block on the connecting rod squeezes out the clamping rod, and the fins and heat sink can be taken out. The operation is simple and convenient, and it does not take up too much space, so it is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 This is a schematic diagram of the internal structure of the heat dissipation installation mechanism of the utility model from the front.

[0029] Figure 3 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0030] In the figure: 1. plate body; 2. heat sink; 3. heat dissipation mounting mechanism; 31. fin; 32. heat sink; 33. fixing assembly; 331. fixing plate; 332. extrusion block; 333. connecting rod; 334. rotating rod; 34. snap-on assembly; 341. snap-on strip; 342. snap-on rod; 343. compression spring; 344. limit block; 4. rubber hemisphere. DETAILED DESCRIPTION

[0031] 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 in 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.

[0032] The utility model provides Figure 1-3 A heat sink shown in the figure comprises a plate body 1, a heat sink is provided in the middle of the plate body 1, a heat sink 2 is fixedly connected to the inside of the heat sink, and the heat sink 2 is in contact with the heating position of the plate body 1 to conduct heat away;

[0033] Furthermore, a heat dissipation mounting mechanism 3 is provided at the top of the heat sink 2, and the heat dissipation mounting mechanism 3 includes: fins 31, heat sinks 32, fixing components 33 and clamping components 34. A plurality of slots are equidistantly provided at the top of the heat sink 2, and a plurality of fins 31 are respectively slidably and interlacedly connected with the inner cavities of the plurality of slots; the heat sink 32 is fixedly connected to the tops of the plurality of fins 31; the fixing component 33 is fixedly connected to the top of the heat sink 2; the heat sink 32 is connected to the fixing component 33 via the clamping component 34, and the fins 31 and the heat sink 32 are fixed to the heat sink 2 via the clamping component 34, thereby accelerating the heat dissipation speed of the heat sink 2.

[0034] Specifically, the fixing assembly 33 includes: a fixing plate 331, an extrusion block 332, a connecting rod 333 and a rotating rod 334. The multiple fixing plates 331 are fixedly connected to the top of the heat sink 2; the multiple fixing plates 331 are provided with a snap-in groove on one side close to the fin 31, and the extrusion block 332 is slidably connected with the inner cavity of the snap-in groove; one end of the connecting rod 333 is fixedly connected with the extrusion block 332, and the other end of the connecting rod 333 is slidably connected with the inner wall of the snap-in groove; the multiple fixing plates 331 are far away from the fin 31. A rotating groove is provided on one side away from the fin 31, and the rotating rod 334 is rotatably connected to the connecting rod 333. The rotating rod 334 is located inside the rotating groove. By rotating the rotating rod 334, the rotating rod 334 and the connecting rod 333 are in the same straight line, and the extrusion block 332 can be pushed so that the extrusion block 332 pushes the clamping rod 342 out of the clamping groove, and the clamping strip 341 can be disassembled, so that the fin 31 and the heat sink 32 can be taken out and cleaned, and the disassembly method is simple and convenient.

[0035] Furthermore, the bottom end of the rotating rod 334 is fixedly connected with a rubber hemisphere 4 for resisting the bottom end of the inner wall of the rotating groove. The rubber hemisphere 4 increases the friction between the bottom end of the rotating rod 334 and the inner wall of the rotating groove. By utilizing the elastic property of the rubber hemisphere 4, the rotating rod 334 can be stored inside the rotating groove and kept stable without hindering the rotation of the rotating rod 334, so that the rotating rod 334 does not take up too much space and is easy to use.

[0036] Specifically, the clamping assembly 34 includes: a clamping strip 341, a clamping rod 342, a compression spring 343 and a limit block 344. A plurality of grooves are provided at the top of the heat sink 32. The plurality of clamping strips 341 are respectively connected with the inner cavities of the plurality of grooves through sliding and insertion. Both sides of the clamping strip 341 are provided with elastic grooves. One end of the clamping rod 342 is connected with the inner cavity of the clamping groove through sliding and insertion. The other end of the clamping rod 342 is connected with the inner cavity of the elastic groove through sliding and insertion. One end of the clamping rod 342 is provided with an inclined surface. The opening of the inclined surface can fix the clamping rod 342 when the clamping strip 341 is pressed down. The fixed plate 331 converts the vertical force into the horizontal force, thereby shrinking to the inside of the elastic groove, and popping out again for clamping when coinciding with the clamping groove; the compression spring 343 is located inside the elastic groove, one end of the compression spring 343 is fixedly connected to the clamping rod 342, and the other end of the compression spring 343 is fixedly connected to the inner wall of the elastic groove, and the compression spring 343 is always in a compressed state, thereby providing a stable elastic force to the clamping rod 342, so that the clamping rod 342 is always in an extended state, which is convenient for clamping with the clamping groove. A plurality of limit blocks 344 are respectively fixedly connected to the top and bottom ends of the clamping rod 342, and the top and bottom ends of the inner wall of the elastic groove are both provided with limit grooves, and the limit blocks 344 are slidably interlaced with the inner cavity of the limit groove, and the limit blocks 344 play a role in limiting the clamping rod 342, so that the clamping rod 342 can only move along the limit groove under the elastic force of the compression spring 343.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat sink, comprising: A plate body (1), wherein a heat dissipation groove is provided in the middle of the plate body (1), and a heat dissipation plate (2) is fixedly connected to the interior of the heat dissipation groove; The invention is characterized in that: a heat dissipation installation mechanism (3) is arranged at the top of the heat dissipation plate (2), and the heat dissipation installation mechanism (3) comprises: Fins (31), a plurality of slots are equidistantly provided at the top of the heat dissipation plate (2), and the plurality of fins (31) are respectively slidably interlaced with the inner cavities of the plurality of slots; A heat sink (32), wherein the heat sink (32) is fixedly connected to top ends of the plurality of fins (31); A fixing component (33), wherein the fixing component (33) is fixedly connected to the top of the heat dissipation plate (2); A clamping assembly (34), wherein the heat sink (32) is connected to the fixing assembly (33) via the clamping assembly (34).

2. A heat sink according to claim 1, characterized in that: The fixing assembly (33) comprises: A fixing plate (331), wherein a plurality of the fixing plates (331) are fixedly connected to the top of the heat dissipation plate (2); An extrusion block (332), a plurality of the fixing plates (331) are provided with a clamping groove on one side close to the fin (31), and the extrusion block (332) is slidably connected with the inner cavity of the clamping groove; A connecting rod (333), one end of which is fixedly connected to the extrusion block (332), and the other end of which is slidably connected to the inner wall of the clamping groove; A rotating rod (334), a rotating groove is provided on one side of the plurality of fixed plates (331) away from the fin (31), the rotating rod (334) is rotatably connected to the connecting rod (333), and the rotating rod (334) is located inside the rotating groove.

3. A heat sink according to claim 2, characterized in that: The bottom end of the rotating rod (334) is fixedly connected with a rubber hemisphere (4) for abutting against the bottom end of the inner wall of the rotating groove.

4. The heat sink according to claim 2, characterized in that: The clamping assembly (34) comprises: A clamping strip (341), wherein a plurality of grooves are formed at the top of the heat sink (32), and a plurality of the clamping strips (341) are respectively slidably interlaced with the inner cavities of the plurality of grooves; A clamping rod (342), elastic grooves are provided on both sides of the clamping strip (341), one end of the clamping rod (342) is slidably inserted and connected with the inner cavity of the clamping groove, the other end of the clamping rod (342) is slidably inserted and connected with the inner cavity of the elastic groove, and one end of the clamping rod (342) is provided with an inclined surface; A compression spring (343), wherein the compression spring (343) is located inside the elastic groove.

5. A heat sink according to claim 4, characterized in that: One end of the compression spring (343) is fixedly connected to the clamping rod (342), and the other end of the compression spring (343) is fixedly connected to the inner wall of the elastic groove.

6. The heat sink according to claim 4, characterized in that: The clamping assembly (34) further comprises: A limit block (344), wherein a plurality of the limit blocks (344) are respectively fixedly connected to the top end and the bottom end of the clamping rod (342), the top end and the bottom end of the inner wall of the elastic groove are both provided with a limit groove, and the limit block (344) is slidably interlaced with the inner cavity of the limit groove.

7. A circuit board, characterized in that: The circuit board includes the heat sink as described in any one of claims 1-6.

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