A heat dissipation type circuit board

Abstract

This utility model discloses a heat-dissipating circuit board, including a circuit board body, a heat sink, a cooling fan, and a locking structure. When the cooling fan is mounted on the surface of the heat sink, the insertion rod penetrates the heat sink. Under the action of an elastic element, the locking head engages in the locking slot to pre-fix the insertion rod. Then, the locking frame is rotated, and the locking block engages in the locking groove, pressing down on the insertion rod so that it abuts against the surface of the stop block, thus limiting the insertion rod's position. The locking corner then engages in the locking platform, ensuring the frame's sturdiness and facilitating convenient installation and fixing of the cooling fan. During disassembly, pressing the pressure plate through the notch causes the frame to rotate, and the locking block is removed from the locking groove, releasing the locking of the insertion rod and facilitating disassembly for subsequent cleaning of the cooling fan.

Description

Technical Field

[0001] This utility model relates to the field of circuit board technology, specifically a heat dissipation circuit board. Background Technology

[0002] A circuit board is an electronic device. It is a basic component of electronic equipment, used for mechanical support and electrical connection of electronic components. Almost all modern electronic devices, such as mobile phones, computers, home appliances, and industrial control systems, cannot function without PCBs. A heat dissipation circuit board has heat sinks and cooling fans installed at the core of the circuit board to dissipate heat from the core.

[0003] The existing circuit boards have the following problems:

[0004] Over time, the cooling fans of existing heat dissipation circuit boards accumulate a lot of dust. If they are not cleaned, the airflow will be reduced. Therefore, they need to be cleaned regularly. However, the existing cooling fans are not easy to disassemble, which leads to the problem of inconvenient maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a heat-dissipating circuit board to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a heat-dissipating circuit board, comprising a circuit board body, a heat sink provided on the circuit board body, a cooling fan provided on the heat sink, a locking structure provided on the heat sink, the locking structure comprising a fixing plate, a fixing plate provided on the heat sink, a locking frame connected to the fixing plate, a locking block provided on the locking frame, and a plug rod fixed on the surface of the cooling fan, the plug rod being provided with a locking groove.

[0007] Preferably, a pressure plate is provided on the surface of the card frame, the pressure plate protrudes from the surface of the card frame, and the pressure plate is located outside the heat sink.

[0008] Preferably, the pressure plate is provided with a notch.

[0009] Preferably, the surface of the heat sink is provided with an elastic element, the surface of the elastic element is provided with a locking head, and the surface of the insertion rod is provided with a locking slot.

[0010] Preferably, when the card head is located inside the card slot, the elastic element is in a natural, unforced state.

[0011] Preferably, the card frame is provided with a stop block, and when the card block is engaged in the card slot, the stop block abuts against the surface of the insertion rod.

[0012] Preferably, the surface of the heat sink is provided with a fixing block, the fixing block is provided with a card platform, and the surface of the card frame is provided with card corners.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] When the cooling fan is mounted on the heatsink surface, the insertion rod passes through the heatsink. Under the action of the elastic element, the clamp head is locked in the slot to pre-fix the insertion rod. Then, the clamp frame is rotated, and the clamp block is locked in the slot, pressing down on the insertion rod so that it abuts against the surface of the stop block to limit the insertion rod. Then, the clamp corner will lock into the clamping platform to ensure the sturdiness of the clamp frame, so as to facilitate the installation and fixation of the cooling fan. During disassembly, the clamp frame is rotated by pressing the pressure plate through the notch, and then the clamp block is removed from the slot, releasing the limitation on the insertion rod, so as to facilitate disassembly and subsequent disassembly and cleaning of dust from the cooling fan. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a front view structural diagram of the present utility model;

[0017] Figure 3 This is a front view schematic diagram of the heat sink structure of this utility model;

[0018] Figure 4 This is a front view cross-sectional structural diagram of the card slot structure of this utility model;

[0019] Figure 5 This is a partial enlarged view of region A of this utility model.

[0020] In the diagram: Circuit board body-1, heat sink-2, cooling fan-3, slotting structure-4, fixing plate-41, card frame-42, card block-43, insertion rod-44, card slot-45, pressure plate-46, notch-47, elastic element-48, card head-49, card opening-410, stop block-411, fixing block-412, card platform-413, card corner-414. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1 , Figure 2 and Figure 3This utility model provides a heat dissipation circuit board, including a circuit board body 1. A heat sink 2 is fixed to the core of the circuit board body 1 by bolts. The heat sink 2 is attached to the heat-generating surface of the core of the circuit board body 1 by thermal grease. A cooling fan 3 is installed on the heat sink 2. The heat generated by the core of the circuit board body 1 is transferred to the heat sink 2, and then the cooling fan 3 blows it outward, thereby realizing the heat dissipation of the circuit board body 1. A locking structure 4 is provided on the heat sink 2.

[0023] Please see Figure 4 and Figure 5 This utility model provides a heat dissipation circuit board. The locking structure 4 includes a fixing plate 41. The fixing plate 41 is integrally formed on the heat sink 2. The locking frame 42 is rotatably connected to the fixing plate 41. The locking block 43 is integrally formed on the inner side of the locking frame 42. The bottom surface of the cooling fan 3 is fixed with a plug rod 44. The plug rod 44 can be plugged into the heat sink 2. The plug rod 44 is integrally formed with a slot 45. The surface of the locking frame 42 is integrally formed with a pressure plate 46. The pressure plate 46 protrudes from the surface of the locking frame 42 and is located on the outside of the heat sink 2. The pressure plate 46 is provided with a notch 47 to facilitate the rotation of the locking frame 42.

[0024] Among them, the surface of the heat sink 2 is provided with an elastic element 48, the surface of the elastic element 48 is provided with a clip 49, and the surface of the plug 44 is provided with a slot 410. When the clip 49 is located inside the slot 410, the elastic element 48 is in a natural state without force, which is used to pre-fix the cooling fan 3 when it is installed on the surface of the heat sink 2.

[0025] The card frame 42 is provided with a stop block 411. When the card block 43 is locked in the card slot 45, the stop block 411 abuts against the surface of the plug rod 44, and the card block 43 is locked in the card slot 45, which ensures the stability of the plug rod 44 after it is locked and prevents the cooling fan 3 from shaking.

[0026] The heat sink 2 has a fixing block 412 on its surface, a locking platform 413 on its fixing block 412, and a locking corner 414 on its surface. The locking corner 414 is locked onto the locking platform 413, which improves the stability of the locking frame 42 after it is locked in place.

[0027] Specifically, when the cooling fan 3 is mounted on the surface of the heat sink 2, the insertion rod 44 penetrates the heat sink 2. Then, under the action of the elastic element 48, the clamp head 49 is locked in the slot 410 to pre-fix the insertion rod 44. Then, the clamp frame 42 is rotated, and the clamp block 43 is locked in the slot 45 and the insertion rod 44 is pressed down, so that the insertion rod 44 abuts against the surface of the stop block 411 to limit the insertion rod 44. Then, the clamp corner 414 is locked into the clamp platform 413 to ensure the firmness of the clamp frame 42, so as to facilitate the installation and fixing of the cooling fan 3. When disassembling, the clamp plate 46 is pressed through the notch 47 to make the clamp frame 42 rotate. Then, the clamp block 43 is removed from the slot 45, releasing the limitation on the insertion rod 44, so as to achieve the beneficial effect of convenient disassembly, so as to facilitate the subsequent disassembly and cleaning of dust from the cooling fan 3.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat-dissipating circuit board, comprising a circuit board body (1), wherein a heat sink (2) is disposed on the circuit board body (1), and a cooling fan (3) is disposed on the heat sink (2), characterized in that: It also includes a locking structure (4), on which the heat sink (2) is provided a locking structure (4), the locking structure (4) includes a fixing plate (41), on which the heat sink (2) is provided a fixing plate (41), a card frame (42) is connected to the fixing plate (41), a card block (43) is provided on the card frame (42), and a plug (44) is fixed on the surface of the cooling fan (3), and a card slot (45) is provided on the plug (44).

2. The heat-dissipating circuit board according to claim 1, characterized in that: The card frame (42) is provided with a pressure plate (46), which protrudes from the surface of the card frame (42) and is located outside the heat sink (2).

3. The heat-dissipating circuit board according to claim 2, characterized in that: The pressure plate (46) is provided with a notch (47).

4. The heat-dissipating circuit board according to claim 1, characterized in that: The surface of the heat sink (2) is provided with an elastic element (48), the surface of the elastic element (48) is provided with a clip (49), and the surface of the insertion rod (44) is provided with a slot (410).

5. The heat-dissipating circuit board according to claim 4, characterized in that: When the card head (49) is located inside the card slot (410), the elastic element (48) is in a natural state without force.

6. The heat-dissipating circuit board according to claim 1, characterized in that: The card frame (42) is provided with a stop (411). When the card block (43) is in the card slot (45), the stop (411) abuts against the surface of the insertion rod (44).

7. The heat-dissipating circuit board according to claim 1, characterized in that: The surface of the heat sink (2) is provided with a fixing block (412), the fixing block (412) is provided with a card platform (413), and the surface of the card frame (42) is provided with a card corner (414).

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