CN218920667U

CN218920667U - Circuit board

Info

Publication number: CN218920667U
Application number: CN202222701594.1U
Authority: CN
Inventors: 黄惜平
Original assignee: Shenzhen Ruituo Chuangzhan Technology Co ltd
Current assignee: Shenzhen Ruituo Chuangzhan Technology Co ltd
Priority date: 2022-10-01
Filing date: 2022-10-01
Publication date: 2023-04-25
Anticipated expiration: 2032-10-01

Abstract

The utility model discloses a circuit board, which comprises a circuit board body and a fixing plate, wherein a heat-conducting gel sheet is arranged at the top of the circuit board body, a heat dissipation barrel is embedded in an inner cavity of the fixing plate, two sides of the inner cavity of the heat dissipation barrel are fixedly connected with brackets, one side, opposite to the two brackets, of each bracket is fixedly connected with a fan, and an output shaft of each fan is fixedly connected with a fan blade. The utility model constructs a device capable of rapidly radiating the circuit board through the arrangement of the circuit board body, the fixing plate, the heat-conducting gel piece, the bracket, the fan and the fan blades, wherein the heat-conducting gel piece has certain adhesiveness, can be compressed into various shapes, can be compressed to hundreds of micrometers at the minimum, has no problems of oil discharge and drying, is a bridge connecting the circuit board and the radiator, is used as a filler to fill a gap between the radiator and the circuit board, conducts heat to the radiator, and takes away heat by the radiator, thereby realizing cooling.

Description

Circuit board

Technical Field

The utility model relates to the technical field of circuit boards, in particular to a circuit board.

Background

The names of the circuit boards are: ceramic circuit boards, alumina ceramic circuit boards, aluminum nitride ceramic circuit boards, PCB boards, aluminum substrates, high frequency boards, thick copper plates, impedance boards, PCBs, ultra-thin circuit boards, printed (copper etching technology) circuit boards, and the like. The circuit board enables the circuit to be miniaturized and visualized, and plays an important role in mass production of fixed circuits and optimizing the layout of electrical appliances; the circuit board can be called a printed circuit board or a printed circuit board, and the FPC circuit board is also called a flexible circuit board which is a flexible printed circuit board with high reliability and excellent performance and is made of polyimide or polyester film as a base material. The wiring density is high, the weight is light, the thickness is thin, the flexibility is good.

Electronic product functions are continuously developed in the integration direction, the heat conducting circuit board is smaller and smaller, and electronic elements are more and more; the heat source of the circuit board is too concentrated, the space heights among the heat sources are different, the shapes are different, the power of the electronic product is also larger and larger, the heat dissipation of the circuit board at present mainly depends on a heat conduction gel sheet, and the heat conduction gel sheet is generally adsorbed on the circuit board to conduct heat, and is easy to fall off, so that the heat dissipation effect is affected.

Disclosure of Invention

The present utility model is directed to a circuit board for solving the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the circuit board comprises a circuit board body and a fixing plate, wherein a heat-conducting gel piece is arranged at the top of the circuit board body, a heat dissipation barrel is embedded in an inner cavity of the fixing plate, two supports are fixedly connected to two sides of the inner cavity of the heat dissipation barrel, a fan is fixedly connected to one opposite side of each support, a fan blade is fixedly connected to an output shaft of the fan, and movable holes are formed in front and rear positions of two sides of the top of the fixing plate.

Preferably, the inner cavity of the movable hole is movably connected with a movable rod, and the bottom of the movable rod is fixedly connected with a sucker.

Preferably, a limiting block is fixedly connected to the top of the movable rod, and a limiting spring is arranged on the surface of the movable rod.

Preferably, the top of the limiting spring is contacted with the limiting block, and the bottom of the limiting spring is contacted with the fixing plate.

Preferably, the bottom of the heat dissipation cylinder is in contact with the heat conduction gel sheet, and the number of the heat dissipation cylinders is ten.

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

the utility model constructs a device capable of rapidly radiating the circuit board through the arrangement of the circuit board body, the fixing plate, the heat-conducting gel piece, the bracket, the fan and the fan blades, wherein the heat-conducting gel piece has certain adhesiveness, can be compressed into various shapes, can be compressed to hundreds of micrometers at the minimum, has no problems of oil discharge and drying, is a bridge connecting the circuit board and the radiator, is used as a filler to fill a gap between the radiator and the circuit board, conducts heat to the radiator, and takes away heat by the radiator, thereby realizing cooling.

Drawings

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

FIG. 2 is a perspective view of a fixing plate in the structure of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2A, which is a structural view of the present utility model;

fig. 4 is a cross-sectional view of a heat sink in the structure of the present utility model.

In the figure: 1. a circuit board body; 2. a fixing plate; 3. a thermally conductive gel sheet; 4. a bracket; 5. a blower; 6. a fan blade; 7. a movable hole; 8. a movable rod; 9. a suction cup; 10. a limiting block; 11. a limit spring; 12. a heat dissipation cylinder.

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 positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; 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 will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-4, a circuit board comprises a circuit board body 1 and a fixing plate 2, wherein a heat conducting gel sheet 3 is arranged at the top of the circuit board body 1, a heat dissipation barrel 12 is embedded in an inner cavity of the fixing plate 2, two sides of the inner cavity of the heat dissipation barrel 12 are fixedly connected with brackets 4, one side opposite to the two brackets 4 is fixedly connected with a fan 5, an output shaft of the fan 5 is fixedly connected with a fan blade 6, movable holes 7 are formed in front and back positions of two sides of the top of the fixing plate 2, and a device capable of rapidly dissipating heat of the circuit board is constructed through the arrangement of the circuit board body 1, the fixing plate 2, the heat conducting gel sheet 3, the brackets 4, the fan 5 and the fan blade 6, wherein the heat conducting gel sheet 3 can be compressed into various shapes, the minimum can be compressed to hundreds of micrometers, and the problems of oil and drying do not exist.

Specifically, the inner chamber swing joint of movable hole 7 has movable rod 8, and the bottom fixedly connected with sucking disc 9 of movable rod 8 can adsorb the installation through sucking disc 9's setting to fixed plate 2, realizes the location to heat conduction gel piece 3.

Specifically, the top fixedly connected with stopper 10 of movable rod 8, the surface of movable rod 8 is provided with spacing spring 11, through spacing spring 11's setting, exerts certain elasticity that resets to fixed plate 2 to can make the heat dissipation section of thick bamboo 12 more inseparable with heat conduction gel piece 3 contact.

Specifically, the top of the limiting spring 11 is in contact with the limiting block 10, and the bottom of the limiting spring 11 is in contact with the fixed plate 2.

Specifically, the bottom of the heat dissipation cylinder 12 is in contact with the heat conductive gel sheet 3, and the number of the heat dissipation cylinders 12 is ten.

When the heat conducting gel sheet 3 is used, the heat conducting gel sheet 3 is adsorbed on the circuit board body 1, as the heat conducting gel sheet 3 has certain adhesiveness and can be compressed into various shapes, the heat conducting gel sheet 3 can be compressed to hundreds of micrometers at the lowest, the problems of oil production and drying do not exist, the heat conducting gel sheet 3 is completely contacted with the circuit board, the heat conducting gel sheet is a bridge for connecting the circuit board and the radiator, the bridge is used as a filler to fill a gap between the radiator and the circuit board, then the fixing plate 2 is fixed at the top of the heat conducting gel sheet 3 through the sucking disc 9, at the moment, the limiting spring 11 is arranged, a certain reset elastic force can be applied to the fixing plate 2, so that the heat radiating cylinder 12 is in contact with the heat conducting gel sheet 3 more tightly, at the moment, the heat conducting gel sheet 3 conducts heat to the radiator, and the fan 5 in the radiator drives the fan blade 6 to rotate, so that heat can be taken away, and the temperature reduction is realized.

The standard parts used in the application file can be purchased from the market, and can be customized according to the description of the specification and the drawing, the specific connection modes of the parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machines, the parts and the equipment adopt conventional models in the prior art, the control mode is controlled automatically by a controller, a control circuit of the controller can be realized by simple programming of a person skilled in the art, the control method belongs to common knowledge in the art, and the application file is mainly used for protecting a mechanical device, so the control mode and circuit connection are not explained in detail.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

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 principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The circuit board, including circuit board body (1) and fixed plate (2), its characterized in that: the circuit board comprises a circuit board body (1), wherein a heat-conducting gel piece (3) is arranged at the top of the circuit board body (1), a heat dissipation barrel (12) is embedded in an inner cavity of a fixing plate (2), two supports (4) are fixedly connected to two sides of the inner cavity of the heat dissipation barrel (12), a fan (5) is fixedly connected to one side, opposite to the supports (4), of the two supports, a fan blade (6) is fixedly connected to an output shaft of the fan (5), and movable holes (7) are formed in front and back positions of two sides of the top of the fixing plate (2).

2. The circuit board of claim 1, wherein: the inner cavity of the movable hole (7) is movably connected with a movable rod (8), and the bottom of the movable rod (8) is fixedly connected with a sucker (9).

3. The circuit board of claim 2, wherein: the top of movable rod (8) fixedly connected with stopper (10), the surface of movable rod (8) is provided with spacing spring (11).

4. A circuit board according to claim 3, wherein: the top of the limiting spring (11) is in contact with the limiting block (10), and the bottom of the limiting spring (11) is in contact with the fixed plate (2).

5. The circuit board of claim 1, wherein: the bottom of the heat dissipation cylinder (12) is in contact with the heat conduction gel sheet (3), and the number of the heat dissipation cylinders (12) is ten.