High-efficiency heat dissipation circuit board

Abstract

The utility model relates to the technical field of circuit boards, in particular to a high-efficiency radiating circuit board, which comprises a circuit board body, a plurality of groups of heat-conducting adhesive tapes are arranged on the lower surface of the circuit board body, each group comprises two heat-conducting adhesive tapes, the tops of the heat-conducting adhesive tapes are connected to the lower surface of the circuit board body, and the heat-conducting adhesive tapes are arranged on the circuit board body. A heat transfer sheet is fixedly connected to the bottom of the heat conduction rubber strip, a heat transfer plate is fixedly connected to the lower surface of the heat transfer sheet, a cooling fin is fixedly connected to the bottom end of the heat transfer plate, and an air duct is fixedly connected to the outer side wall of the heat transfer plate. According to the utility model, heat generated by the operation of the circuit board body is transmitted to the radiating fins through the heat-conducting adhesive tape, the heat transfer sheet and the heat transfer plate to be radiated, and the fan works to drive the fan blades to rotate quickly to blow out air in the air duct and accelerate the flowing speed of the air in the air duct, so that the radiating speed of the radiating fins is accelerated, and the radiating performance of the circuit board is enhanced; the heat can be timely dissipated, and the use effect of the heat dissipation plate is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of circuit board, concretely to a high -efficient heat dissipation circuit board. BACKGROUND

[0002] Circuit board is also called printed circuit board (PCB), and it is a key component in electronic equipment, which forms conductive circuit and component connection point on insulating substrate to provide support and connection for electronic components, and according to different classification standards, circuit board can be divided into various types, such as single-sided board, double-sided board, multilayer board, flexible circuit board (FPC), rigid circuit board (PCB) and rigid-flex board, these different types of circuit board have their own characteristics and are suitable for various application scenarios and requirements, and the main materials of circuit board include conductive medium (such as copper foil), insulating layer (such as polyimide), adhesive and the like, and its manufacturing process involves design, printing, etching, plating, assembly and testing and the like, and circuit board is widely used in electronic products in communication equipment, computer, household appliance and the like;

[0003] Electronic components on the circuit board will generate a large amount of heat when working, if the heat cannot be dissipated in time, the temperature of the electronic components will rise, and then the performance and service life of the electronic components will be affected, and even the electronic equipment will be out of order in serious cases, and the effect of the traditional circuit board heat dissipation mode is limited, which is difficult to meet the high requirements of modern electronic equipment on heat dissipation, therefore, a high-efficiency heat dissipation circuit board is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of high-efficiency heat dissipation circuit board to solve the problems raised in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency heat dissipation circuit board, including circuit board body, the lower surface of the circuit board body is equipped with multiple groups of heat-conducting adhesive strips, the quantity of each group of heat-conducting adhesive strips is two, the top of the heat-conducting adhesive strip is connected to the lower surface of the circuit board body, the bottom of the heat-conducting adhesive strip is fixedly connected with heat transfer sheet, the lower surface of the heat transfer sheet is fixedly connected with heat transfer plate, the bottom end of the heat transfer plate is fixedly connected with fin, the outer side wall of the heat transfer plate is fixedly connected with air duct, the fin is located in the air duct, the front surface of the air duct is connected with vent housing, the front surface of the vent housing is equipped with cover plate, the front surface of the cover plate is evenly provided with air hole, the rear surface of the cover plate is equipped with fan, and the output shaft one end of the fan is fixedly connected with fan blade.

[0006] As a further preferred of the technical scheme: the outer side wall of the cover plate is fixedly connected with two movable blocks symmetrically, the rear surface of the movable block is fixedly connected with insertion rod, the outer side wall of the vent housing is fixedly connected with two connecting sleeves symmetrically, and the insertion rod is inserted into the inner side wall of the connecting sleeve.

[0007] As a further preferred embodiment of this technical solution: the outer side wall of the insertion rod is provided with a pin hole, the outer side wall of the connecting sleeve is slidably connected with a pin, one end of the pin is fixedly connected to a circular plate, and a spring is fixedly connected between the circular plate and the opposite side of the connecting sleeve.

[0008] As a further preferred embodiment of this technical solution: a pull ring is fixedly connected to the outer side wall of the circular plate.

[0009] As a further preferred embodiment of this technical solution: a switch button is fixedly connected to the lower part of the front surface of the cover plate, and the electrical output terminal of the switch button is electrically connected to the electrical input terminal of the fan through a wire.

[0010] As a further preferred embodiment of this technical solution: a handle is fixedly connected to the center of the front surface of the cover plate.

[0011] As a further preferred embodiment of this technical solution: the lower surface of the circuit board body is fixedly connected to four corners with feet, and the lower surface of the feet is provided with mounting holes.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention uses thermally conductive adhesive strips, heat transfer sheets, and heat transfer plates to transfer the heat generated by the circuit board to the heat sink for dissipation. The fan drives the fan blades to rotate rapidly, blowing air out of the air duct and accelerating the airflow speed in the air duct, thereby accelerating the heat dissipation speed of the heat sink, enhancing the heat dissipation performance of the circuit board, and ensuring that the heat is dissipated in time to guarantee the effectiveness of the heat sink. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a bottom view of the structure of this utility model;

[0016] Figure 3 This is a front view structural diagram of the present utility model;

[0017] Figure 4 In this utility model Figure 2 Enlarged view of the structure of area A;

[0018] Figure 5 This is a schematic diagram of the heat transfer plate and heat sink in this utility model;

[0019] Figure 6 This is a schematic diagram of the structure of the air duct and ventilation shell of this utility model;

[0020] Figure 7The structure diagram of the fan and the fan blade in the utility model is shown.

[0021] Figure 8 The structure diagram of the fan and the fan blade in the utility model is shown. Figure 3 The structure diagram of the B area in the utility model is shown.

[0022] In the drawing,

[0023] 1, circuit board body; 2, heat-conducting adhesive strip; 3, heat-conducting fin; 4, heat-conducting plate; 5, air duct; 6, ventilation shell; 7, cover plate; 8, air hole; 9, fan; 10, fan blade; 11, movable block; 12, insertion rod; 13, connecting sleeve; 14, pin hole; 15, pin rod; 16, round plate; 17, spring; 18, pull ring; 19, switch button; 20, handle; 21, supporting leg; 22, mounting hole; 23, heat sink. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and the examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application. Obviously, the described embodiments are only some of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "set" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-8The utility model provides a technical scheme: an efficient heat dissipation circuit board, including circuit board body 1, the lower surface of circuit board body 1 is equipped with multiple groups of heat conducting adhesive strips 2, the quantity of each group of heat conducting adhesive strips 2 is two, the top of heat conducting adhesive strip 2 is connected to the lower surface of circuit board body 1, the bottom fixedly connected with heat transfer sheet 3 of heat conducting adhesive strip 2, the lower surface fixedly connected with heat transfer plate 4 of heat transfer sheet 3, the bottom end fixedly connected with fin 23 of heat transfer plate 4, the outside wall fixedly connected with air duct 5 of heat transfer plate 4, the front surface of air duct 5 is connected with ventilated casing 6, the front surface of ventilated casing 6 is equipped with cover plate 7, the front surface of cover plate 7 is evenly provided with air hole 8, the rear surface of cover plate 7 is equipped with fan 9, and the output shaft one end of fan 9 is fixedly connected with fan blade 10;The heat generated by circuit board body 1 work is transferred to fin 23 and is dissipated through heat conducting adhesive strip 2, heat transfer sheet 3 and heat transfer plate 4, fan 9 works and drives fan blade 10 to rotate quickly, blows out the air in air duct 5, speeds up the air flow speed in air duct 5, to speed up the heat dissipation speed of fin 23, enhances the heat dissipation performance of circuit board, makes heat dissipate in time, guarantees the use effect of heat dissipation plate.

[0027] In the embodiment, specifically: the outside wall of the cover plate 7 is symmetrically fixedly connected with two movable blocks 11, the rear surface of the movable block 11 is fixedly connected with a plug rod 12, the outside wall of the ventilated casing 6 is symmetrically fixedly connected with two connecting sleeves 13, and the plug rod 12 is inserted into the inside wall of the connecting sleeve 13.

[0028] In the embodiment, specifically: the outside wall of the plug rod 12 is provided with a pin hole 14, the outside wall of the connecting sleeve 13 is slidably connected with a pin rod 15, one end of the pin rod 15 is fixedly connected with a circular plate 16, and the circular plate 16 and the opposite side of the connecting sleeve 13 are fixedly connected with a spring 17; when installing the fan 9, the circular plate 16 is pulled outward to lengthen the spring 17, the plug rod 12 is inserted into the connecting sleeve 13, the circular plate 16 is released, the spring 17 is shortened to drive the pin rod 15 to be inserted into the pin hole 14, the cover plate 7 can be locked, similarly, the pin rod 15 is pulled out of the pin hole 14 by pulling the circular plate 16 again, the plug rod 12 and the cover plate 7 can be unlocked, and the fan 9 can be quickly removed, which is convenient for repairing the fan 9.

[0029] In the embodiment, specifically: the outside wall of the circular plate 16 is fixedly connected with a pull ring 18; the circular plate 16 is conveniently pulled.

[0030] In the embodiment, specifically: the front surface of the cover plate 7 is fixedly connected with a switch button 19 at the lower part, and the electrical output end of the switch button 19 is electrically connected with the electrical input end of the fan 9 through a wire; the working state of the fan 9 is conveniently controlled.

[0031] In the embodiment, specifically: a handle 20 is fixedly connected to the front surface of the cover plate 7; the cover plate 7 is conveniently moved.

[0032] In this embodiment, specifically, the lower surface of the circuit board body 1 is fixedly connected with a support 21 at four corners, and the lower surface of the support 21 is provided with a mounting hole 22; the support 21 and the circuit board body 1 can be fixed at a position required to be installed in an electronic device by means of the external screw cooperating with the mounting hole 22.

[0033] The working principle of the utility model is: the heat generated by the circuit board body 1 is transmitted to the radiating fin 23 through the heat-conducting adhesive tape 2, the heat-conducting sheet 3 and the heat-conducting plate 4, the fan 9 drives the fan blade 10 to rotate rapidly, the air in the air duct 5 is blown out, the air flow speed in the air duct 5 is accelerated, the heat dissipation speed of the radiating fin 23 is accelerated, the heat dissipation performance of the circuit board is enhanced, the heat is dissipated in time, the use effect of the heat dissipation plate is guaranteed, when the fan 9 is installed, the circular plate 16 is pulled outward to make the spring 17 lengthen, the inserting rod 12 is inserted into the connecting sleeve 13, the circular plate 16 is loosened, the spring 17 is shortened to drive the pin rod 15 to be inserted into the pin hole 14, the cover plate 7 can be locked, in the same way, the pin rod 15 is pulled away from the pin hole 14 again, the inserting rod 12 and the cover plate 7 can be unlocked, the fan 9 can be quickly taken down, the fan 9 is convenient to overhaul.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat dissipation circuit board, characterized in that: The utility model relates to a circuit board body (1), the lower surface of the circuit board body (1) is equipped with multiple groups of heat conduction adhesive strips (2), the quantity of each group heat conduction adhesive strip (2) is two, the top of heat conduction adhesive strip (2) is connected to the lower surface of circuit board body (1), the bottom of heat conduction adhesive strip (2) is fixedly connected with heat transfer sheet (3), the lower surface of heat transfer sheet (3) is fixedly connected with heat transfer plate (4), the bottom of heat transfer plate (4) is fixedly connected with radiating fin (23), the outer lateral wall of heat transfer plate (4) is fixedly connected with air duct (5), and radiating fin (23) is located in air duct (5) inside, and the front surface of air duct (5) is connected with ventilation casing (6), the front surface of ventilation casing (6) is equipped with cover plate (7), the front surface of cover plate (7) is evenly provided with air hole (8), the rear surface of cover plate (7) is equipped with fan (9), and the output shaft one end of fan (9) is fixedly connected with fan blade (10).

2. The high-efficiency heat dissipating circuit board according to claim 1, characterized by: The outer lateral wall of cover plate (7) is fixedly connected with two movable blocks (11) symmetrically, the rear surface of movable block (11) is fixedly connected with plug rod (12), and the outer lateral wall of ventilation casing (6) is fixedly connected with two connecting sleeves (13) symmetrically, the inner lateral wall of connecting sleeve (13) is inserted with plug rod (12).

3. The high-efficiency heat dissipating circuit board according to claim 2, characterized by: The outer lateral wall of plug rod (12) is provided with pin hole (14), the outer lateral wall of connecting sleeve (13) is slidably connected with pin rod (15), one end of pin rod (15) is fixedly connected with round plate (16), and spring (17) is fixedly connected between the opposite side of connecting sleeve (13) and round plate (16).

4. The high-efficiency heat dissipating circuit board according to claim 3, characterized by: The outer lateral wall of round plate (16) is fixedly connected with pull ring (18).

5. The high-efficiency heat dissipating circuit board according to claim 4, characterized by: The front surface lower part of cover plate (7) is fixedly connected with switch button (19), and the electrical output end of switch button (19) is electrically connected with the electrical input end of fan (9) through wire.

6. The high-efficiency heat dissipating circuit board according to claim 5, characterized by: The front surface middle part of cover plate (7) is fixedly connected with handle (20).

7. The high-efficiency heat dissipating circuit board according to claim 6, characterized by: The lower surface of circuit board body (1) is fixedly connected with supporting leg (21) in four corners, and the lower surface of supporting leg (21) is provided with mounting hole (22).

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