Connection structure of circuit board and heat dissipation block

Abstract

The utility model relates to the technical field of circuit boards, in particular to a connection structure of a circuit board and a heat dissipation block. A heat dissipation block is fixedly arranged on a circuit board, a fixing block is embedded in one side face of the heat dissipation block, the circuit board is electrically connected with a temperature sensor body, the fixing block is provided with an installation groove for the temperature sensor body to be embedded, and the two side walls, located in the installation groove, of the fixing block are elastically connected with limiting blocks. Limiting bosses abutting against the limiting blocks are arranged on the two sides of the temperature sensor body, so that when the temperature sensor body is inserted into the mounting groove, the limiting blocks are compressed through the limiting bosses, after the temperature sensor body is embedded into the mounting groove, the limiting blocks abut against the outer sides of the limiting bosses under the elastic effect, and then the limiting bosses are limited; the temperature sensor is simple and convenient to install and operate, is not easy to loosen, and guarantees the accuracy of temperature detection.

Description

Technical Field

[0001] This application relates to the field of circuit board technology, and in particular to a connection structure between a circuit board and a heat sink. Background Technology

[0002] Current circuit boards contain various components, including surface-mount transistors. These transistors generate heat during operation, which needs to be dissipated promptly. Current heat dissipation methods involve mounting a heat sink on the circuit board, with the transistors mounted on the heat sink for heat conduction and dissipation. To detect the temperature of the heat sink, a temperature sensor needs to be installed on it and electrically connected to the circuit board. In existing installation methods, the temperature sensor is placed in a recess in the heat sink and then fixed to it with adhesive. This adhesive connection method is complex and prone to loosening, leading to inaccurate temperature measurements. Utility Model Content

[0003] To solve the above-mentioned technical problems, this application provides a connection structure between a circuit board and a heat sink, including a circuit board, a heat sink fixedly disposed on the circuit board, a fixing block embedded on one side of the heat sink, a temperature sensor body electrically connected to the circuit board, a mounting groove for the temperature sensor body to be embedded in the fixing block, limit blocks elastically connected to the two side walls of the fixing block located in the mounting groove, and limit bosses abutting against the limit blocks on both sides of the temperature sensor body.

[0004] Preferably, receiving grooves are provided on both sides of the fixed block, the limiting block is movably disposed in the receiving grooves, and an elastic element abutting against the limiting block is provided in the receiving grooves.

[0005] Preferably, an outwardly extending pull rod is provided on the surface of the limiting block away from the fixing block.

[0006] Preferably, an arcuate surface is formed on the side of the pull rod away from the fixing block.

[0007] Preferably, the limiting boss is semi-circular in shape.

[0008] Preferably, the end face of the temperature sensor body has a detection end that contacts the heat sink.

[0009] Preferably, the heat sink has several heat dissipation grooves on both sides.

[0010] As can be seen from the above, the following beneficial effects can be obtained by applying the present application: by fixing a heat sink block on the circuit board, embedding a fixing block on one side of the heat sink block, electrically connecting a temperature sensor body to the circuit board, and providing a mounting groove for the temperature sensor body to be inserted into the fixing block, elastically connecting limit blocks on both sides of the fixing block located in the mounting groove, and providing limit bosses on both sides of the temperature sensor body that abut against the limit blocks, when the temperature sensor body is inserted into the mounting groove, the limit bosses compress the limit blocks. After the temperature sensor body is inserted into the mounting groove, the limit blocks abut against the outside of the limit bosses under elastic action, thereby limiting the limit bosses and making the sensor body stable in the mounting groove. The installation operation is simple and convenient, and it is not easy to loosen, ensuring the accuracy of temperature detection. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments of this application or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the connection structure between the circuit board and the heat sink in an embodiment of this application;

[0013] Figure 2 Examples of this application Figure 1 Enlarged view of part A;

[0014] Figure 3 This is a cross-sectional view of the connection structure between the circuit board and the heat sink in an embodiment of this application. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0016] Example

[0017] To address the aforementioned technical problems, this embodiment provides a connection structure between a circuit board and a heat sink, such as... Figure 1-3As shown, the device includes a circuit board 10, a heat sink 20 fixedly mounted on the circuit board 10, a fixing block 40 embedded on one side of the heat sink 20, a temperature sensor body 30 connected to the circuit board 10 via wires, and a mounting groove 41 for the temperature sensor body 30 to be inserted into the fixing block 40. Limiting blocks 50 are elastically connected to the two side walls of the fixing block 40 located in the mounting groove 41. Limiting bosses 31 that abut against the limiting blocks 50 are provided on both sides of the temperature sensor body 30. When the temperature sensor body 30 is inserted into the mounting groove 41, the limiting bosses 31 compress the limiting blocks 50. After the temperature sensor body 30 is inserted into the mounting groove 41, the limiting blocks 50 abut against the outside of the limiting bosses 31 under elastic action, thereby limiting the limiting bosses 31 and making the sensor body 30 stable in the mounting groove 41. The installation operation is simple and convenient, and it is not easy to loosen, ensuring the accuracy of temperature detection.

[0018] Specifically, receiving grooves 42 are provided on both side walls of the fixing block 40, and the limiting block 50 is movably disposed within the receiving grooves 42. An elastic element 43 is provided within the receiving grooves 42, abutting against the limiting block 50. The elastic force of the elastic element 43 causes the end of the limiting block 50 to extend out of the mounting groove 41. When the temperature sensor body 30 is inserted into the mounting groove 41, the limiting boss 31 acts on the limiting block 50, compressing the elastic element 43. Thus, the temperature sensor body 30 can be embedded in the mounting groove 41. Then, the limiting block 50 abuts against the outside of the limiting boss 31 under elastic force, fixing the temperature sensor body 30 in the mounting groove 41. The end face of the temperature sensor body 30 has a detection end 32 that contacts the heat sink 20. After the temperature sensor body 30 is embedded in the mounting groove 41, the detection end 32 contacts the heat sink 20, thereby detecting the temperature of the heat sink 20.

[0019] Furthermore, an outwardly extending pull rod 51 is provided on the surface of the limiting block 50 away from the fixing block 40. When it is necessary to remove the temperature sensor body 30, the limiting block 50 is compressed by pushing the pull rod 51, thereby allowing the temperature sensor body 30 to be pulled out. The disassembly and assembly operation is simple and convenient.

[0020] Furthermore, an arc surface 52 is formed on the side of the limiting block 50 away from the fixing block 40, and the limiting boss 31 is semi-circular. When the temperature sensor body 30 is inserted into the mounting groove 41, the limiting boss 31 acts on the arc surface 52 of the limiting block 50, so that the limiting block 50 can retract into the receiving groove 42. After the temperature sensor body 30 is embedded in the mounting groove 41, it abuts against the limiting boss 31 through the other side of the limiting block 50. The limiting block 50 limits the limiting boss 31, so that the temperature sensor body 30 is fixed in the mounting groove 41, and the detection end 32 remains in contact with the heat sink 20.

[0021] Furthermore, several heat dissipation grooves 21 are provided on both sides of the heat sink 20. The heat dissipation grooves 21 increase the heat dissipation area of ​​the heat sink 20, thereby conducting and dissipating heat on the surface-mount transistors on the heat sink 20 and improving the heat dissipation speed.

[0022] In summary, the solution of this application involves fixing a heat sink on a circuit board, embedding a fixing block on one side of the heat sink, electrically connecting a temperature sensor body to the circuit board, and providing a mounting slot for the temperature sensor body to be inserted into the fixing block. Limiting blocks are elastically connected to the two side walls of the fixing block located in the mounting slot, and limiting bosses that abut against the limiting blocks are provided on both sides of the temperature sensor body. When the temperature sensor body is inserted into the mounting slot, the limiting bosses compress the limiting blocks. After the temperature sensor body is inserted into the mounting slot, the limiting blocks abut against the outside of the limiting bosses under elastic action, thereby limiting the limiting bosses and making the sensor body securely placed in the mounting slot. The installation operation is simple and convenient, and it is not easy to loosen, ensuring the accuracy of temperature detection.

[0023] The embodiments described above do not constitute a limitation on the scope of protection of this technical solution. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the above embodiments should be included within the scope of protection of this technical solution.

Claims

1. A connection structure between a circuit board and a heat sink, characterized in that: The device includes a circuit board (10) and a heat sink (20) fixedly mounted on the circuit board (10). A fixing block (40) is embedded on one side of the heat sink (20). A temperature sensor body (30) is electrically connected to the circuit board (10). The fixing block (40) has a mounting groove (41) for the temperature sensor body (30) to be embedded. Limiting blocks (50) are elastically connected to the two side walls of the fixing block (40) located in the mounting groove (41). Limiting bosses (31) that abut against the limiting blocks (50) are provided on both sides of the temperature sensor body (30).

2. The connection structure between the circuit board and the heat sink according to claim 1, characterized in that: The fixing block (40) has receiving grooves (42) on both sides of the fixing block (40), the limiting block (50) is movably disposed in the receiving groove (42), and the receiving groove (42) is provided with an elastic member (43) that abuts against the limiting block (50).

3. The connection structure between the circuit board and the heat sink according to claim 2, characterized in that: An outwardly extending pull rod (51) is provided on the surface of the limiting block (50) away from the fixing block (40).

4. The connection structure between the circuit board and the heat sink according to claim 3, characterized in that: An arc surface (52) is formed on the side of the limiting block (50) away from the fixing block (40).

5. The connection structure between the circuit board and the heat sink according to claim 2, characterized in that: The limiting boss (31) is semi-circular in shape.

6. The connection structure between the circuit board and the heat sink according to claim 2, characterized in that: The end face of the temperature sensor body (30) has a detection end (32) that contacts the heat sink (20).

7. The connection structure between the circuit board and the heat sink according to claim 1, characterized in that: The heat sink (20) has several heat dissipation grooves (21) on both sides.

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