CN219780497U

CN219780497U - Efficient heat dissipation PCB board

Info

Publication number: CN219780497U
Application number: CN202320951841.5U
Authority: CN
Inventors: 吴国华
Original assignee: Henan Haoda Electronic Technology Co ltd
Current assignee: Henan Haoda Electronic Technology Co ltd
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-09-29
Anticipated expiration: 2033-04-25

Abstract

The utility model relates to the technical field of PCB boards, in particular to a high-efficiency heat-dissipation PCB board which comprises a fixing device, an electric fan, a circuit layer, an insulating layer and a heat dissipation layer, wherein the circuit layer, the insulating layer and the heat dissipation layer are sequentially arranged and connected through connecting blocks; in the PCB working process, a large amount of heat can be generated, a heat radiation opening, a heat radiation rod and a heat radiation supporting rod are added, the heat generated by the PCB is radiated, and a small electric fan is arranged below the PCB, so that the heat radiation efficiency is improved, and the existing structure of the PCB is not changed in a large range.

Description

Efficient heat dissipation PCB board

Technical Field

The utility model relates to the technical field of PCB boards, in particular to a PCB board with efficient heat dissipation.

Background

PCB (Printed Circuit Board) the Chinese name printed circuit board, also called printed circuit board, printed circuit board is an important electronic component, which is a support for electronic components and is a provider for electrical connection of electronic components. In the prior art, the PCB board is widely used, and it is well known that the electronic component generates heat during the working process, so the heat dissipation of the PCB board is an important index. The existing PCB mainly dissipates heat through a heat dissipation layer at the bottom layer, the heat dissipation layer is mostly made of single materials such as aluminum plates and ceramics, the lateral heat conductivity of the materials is poor, the heat dissipation layer in a corresponding area under the components is always high, but the temperature outside the area is low, and particularly when a plurality of components are distributed in an array, the heat of the most middle components can not be well dissipated, so that the components cannot work normally.

Chinese authorized utility model disclosure (bulletin) number: the radiating PCB of CN204046923U comprises a substrate, mounting holes, a conducting layer, an insulating layer and a radiating layer, wherein the mounting holes are distributed on the periphery of the substrate, the conducting layer, the insulating layer and the radiating layer are sequentially arranged on the upper layer, the middle layer and the lower layer of the substrate, a radiating core is arranged in the substrate, and a radiating pit is arranged at the bottom of the radiating layer. The heat dissipation core is formed by the core branch, the core rod and the core root, and the core branch and the core root are respectively buried in the insulating layer and the heat dissipation layer, and only the heat dissipation surface area is enlarged to dissipate heat, so that the heat dissipation efficiency is low, and the heat of the components positioned on the circuit layer cannot be completely dissipated.

Disclosure of Invention

The utility model aims to provide a PCB board with high-efficiency heat dissipation so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high-efficient radiating PCB board, includes fixing device, electric fan, circuit layer, insulating layer, heat dissipation layer, its characterized in that: the utility model discloses a motor drive circuit board, including circuit layer, insulating layer, heat dissipation layer, connecting block, fixing device, threaded rod slider, fixing device, electric fan, threaded rod slider, connecting block, circuit layer, insulating layer, heat dissipation layer's four angles department is provided with the mounting hole, the mounting hole is provided with the connecting block, the top and the bottom of connecting block are fixed with circuit layer and heat dissipation layer respectively through the bolt, the below on heat dissipation layer is provided with fixing device, the splint inner chamber has been seted up to fixing device's bottom both ends, the sliding inner chamber is provided with two threaded rod sliders, two threaded rod sliders cup joints on the threaded rod, the mid portion of threaded rod is located sliding inner chamber department, the outside that the both ends of threaded rod extended to fixing device, the threaded rod slider is fixed with the electric fan through the fixed block.

Preferably, the threaded rod is located at the sliding cavity, and one end of the threaded rod extends outside the fixing device and is connected with a rotating wheel.

Preferably, the bottom of heat dissipation layer is provided with a plurality of thermovent, the top of thermovent extends the thermolever to the bottom of circuit layer, the surface of thermolever extends a plurality of heat dissipation branch, the other end of heat dissipation branch is connected with the bottom of circuit layer.

Preferably, the plurality of heat dissipation openings are positioned above the inner cavity of the clamping plate.

Preferably, a clamping block is arranged at the top of the fixing device, and clamps the circuit layer, the insulating layer and the heat dissipation layer.

Preferably, the insulating layer is located in the middle of the circuit layer and the heat dissipation layer.

Compared with the prior art, the utility model has the beneficial effects that:

in the utility model, a large amount of heat is generated in the working process of the PCB, the heat generated by the PCB is dissipated by adding the heat dissipation opening, the heat dissipation rod and the heat dissipation support rod, and the small electric fan is arranged below the PCB, so that the heat dissipation efficiency is improved, and the existing structure of the PCB is not changed in a large range.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view of a PCB board of the present utility model;

FIG. 3 is an enlarged view of FIG. 2 at A;

fig. 4 is a schematic structural view of the fixing device of the present utility model.

In the figure: 1. a fixing device; 2. a threaded rod; 3. an electric fan; 4. a circuit layer; 5. an insulating layer; 6. a heat dissipation layer; 7. a heat radiation port; 8. a heat dissipation rod; 9. a heat dissipation strut; 10. a cleat cavity; 11. a sliding inner cavity; 12. a threaded rod sliding block; 13. clamping blocks; 14. a fixed block; 15. a connecting block; 16. a mounting hole; 17. a rotating wheel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a high-efficient radiating PCB board, includes fixing device 1, electric fan 3, circuit layer 4, insulating layer 5, heat dissipation layer 6, its characterized in that: the circuit layer 4, the insulating layer 5, four angles department of heat dissipation layer 6 are provided with mounting hole 16, mounting hole 16 is provided with connecting block 15, the top and the bottom of connecting block 15 are fixed with circuit layer 4 and heat dissipation layer 6 respectively through the bolt, the below of heat dissipation layer 6 is provided with fixing device 1, clamping plate inner chamber 10 has been seted up to fixing device 1, sliding inner chamber 11 has been seted up at the bottom both ends of fixing device 1, sliding inner chamber 11 is provided with two threaded rod sliders 12, two threaded rod sliders 12 cup joint on threaded rod 2, the centre of threaded rod 2 is located sliding inner chamber 11 department, the outside of fixing device 1 is extended to the both ends of threaded rod 2, threaded rod sliders 12 are fixed with electric fan 3 through fixed block 14.

Further, the threaded rod 2 is located at the sliding inner cavity 11, one end of the threaded rod 2 extends to the outside of the fixing device 1 and is connected with a rotating wheel 17, and the threaded rod 2 is driven to rotate by the rotation of the rotating wheel 17.

Further, a plurality of heat dissipation ports 7 are formed in the bottom of the heat dissipation layer 6, heat dissipation rods 8 extend from the top of the heat dissipation ports 7 to the bottom of the circuit layer 4, a plurality of heat dissipation supporting rods 9 extend from the surface of the heat dissipation rods 8, the other ends of the heat dissipation supporting rods 9 are connected with the bottom of the circuit layer 4, and heat generated by components located in the circuit layer 4 is transferred to the heat dissipation ports 7 of the heat dissipation layer 6.

Further, the utility model is provided with the threaded rod 2 and the threaded rod slide blocks 12, and in the process of rotating the threaded rod 2, the two threaded rod slide blocks 12 move along the same distance, so that the electric fan 3 is driven to move, and each heat dissipation port 7 can enjoy the electric fan 3.

Further, a plurality of heat dissipation ports 7 are positioned above the inner cavity 10 of the clamping plate.

Further, a clamping block 13 is arranged at the top of the fixing device 1, and the clamping block 13 clamps the circuit layer 4, the insulating layer 5 and the heat dissipation layer 6.

Further, the insulating layer 5 is located in the middle of the circuit layer 4 and the heat dissipation layer 6.

Working principle: all components are positioned in a circuit layer 4 in the PCB, in operation, heat generated by the components is transferred to a heat dissipation opening 7 through a heat dissipation rod 8 and a heat dissipation supporting rod 9 positioned at the top of an insulating layer 5, an electric fan 3 is arranged below the heat dissipation opening 7, and the movement of the electric fan 3 accelerates the circulation rate of air at the heat dissipation opening 7 and improves the heat dissipation efficiency;

if the electric fan 3 blows the heat dissipation port 7 at other places against one place, it is difficult to improve the heat dissipation efficiency, so that the threaded rod 2 is added in the utility model, and one end of the threaded rod 2 is connected with the rotating wheel 17, and the rotating wheel 17 rotates to drive the threaded rod 2 to rotate, so that the two threaded rod sliding blocks 12 move along the same distance, and the electric fan 3 is driven to rotate, so that the air circulation rate at all the heat dissipation ports 7 is improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims

1. The utility model provides a high-efficient radiating PCB board, includes fixing device (1), electric fan (3), circuit layer (4), insulating layer (5), heat dissipation layer (6), its characterized in that: the utility model discloses a motor drive circuit board, including circuit layer (4), insulating layer (5), heat dissipation layer (6), four angles departments are provided with mounting hole (16), mounting hole (16) are provided with connecting block (15), the top and the bottom of connecting block (15) are fixed with circuit layer (4) and heat dissipation layer (6) respectively through the bolt, the below of heat dissipation layer (6) is provided with fixing device (1), splint inner chamber (10) have been seted up to fixing device (1), sliding inner chamber (11) have been seted up at the bottom both ends of fixing device (1), sliding inner chamber (11) are provided with two threaded rod slider (12), two threaded rod slider (12) cup joint on threaded rod (2), threaded rod slider (12) are fixed with electric fan (3) through fixed block (14).

2. The efficient heat dissipation PCB of claim 1, wherein: the threaded rod (2) is positioned at the sliding inner cavity (11), and one end of the threaded rod (2) extends to the outside of the fixing device (1) and is connected with a rotating wheel (17).

3. The efficient heat dissipation PCB of claim 1, wherein: the bottom of heat dissipation layer (6) is provided with a plurality of thermovent (7), thermovent (8) are extended to the bottom of circuit layer (4) in the top of thermovent (7), the surface of thermovent (8) extends a plurality of heat dissipation branch (9), the other end of heat dissipation branch (9) is connected with the bottom of circuit layer (4).

4. The efficient heat dissipation PCB of claim 2, wherein: the heat dissipation ports (7) are positioned above the inner cavity (10) of the clamping plate.

5. The efficient heat dissipation PCB of claim 1, wherein: the top of fixing device (1) is provided with clamp splice (13), clamp splice (13) are carried out centre gripping with circuit layer (4), insulating layer (5), heat dissipation layer (6).

6. The efficient heat dissipation PCB of claim 1, wherein: the insulating layer (5) is positioned between the circuit layer (4) and the heat dissipation layer (6).