CN216566046U

CN216566046U - Power adapter circuit board fin

Info

Publication number: CN216566046U
Application number: CN202122791480.6U
Authority: CN
Inventors: 包新华
Original assignee: Dongguan Weishan Electromechanical Technology Co ltd
Current assignee: Dongguan Weishan Electromechanical Technology Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-05-17
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a circuit board radiating fin of a power adapter, which comprises a circuit board body and a radiating fin, wherein the circuit board body and the radiating fin are fixed through a clamping installation assembly, the clamping installation assembly comprises a clamping block and a limiting block, one side of the clamping block is fixedly connected with one side of the radiating fin, a placing groove is formed in the surface of the circuit board body, sliding grooves are formed in two sides of the placing groove, and the outer surfaces of the clamping block and the limiting block are in sliding connection with the inner surface of the sliding groove. This power adapter circuit board fin through being provided with joint installation component, puts into the sliding tray with the stopper and the spring of fin one side, also removes to the standing groove until the fixture block in to restoring force through the spring makes the standing groove of fin and circuit board body install, has made things convenient for the dismantlement of fin when changing with this, has avoided the damage to the circuit board body simultaneously, has improved the thermal diffusivity of fin moreover.

Description

Power adapter circuit board fin

Technical Field

The utility model relates to the technical field of radiating fins, in particular to a radiating fin of a power adapter circuit board.

Background

The radiating fin is a device for radiating heat of electronic elements which are easy to generate heat in electrical appliances, and is made of aluminum alloy, brass or bronze into a plate shape, a sheet shape, a plurality of sheet shapes and the like, for example, a CPU (central processing unit) in a computer needs to use a relatively large radiating fin, and power tubes, row tubes and power amplifier tubes in a power amplifier in a television set need to use the radiating fin. Generally, a layer of heat-conducting silicone grease is coated on the contact surface of an electronic component and a heat sink when the heat sink is in use, so that heat emitted by the component is more effectively conducted to the heat sink and then dissipated to the ambient air through the heat sink.

Most of the existing circuit board radiating fins are bonded through bonding glue, but the radiating fins are often worn and damaged after long-time use, so that the radiating effect is poor, and the circuit board is easily damaged when the radiating fins are directly disassembled.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a circuit board radiating fin of a power adapter, which solves the problem that the radiating fin of the existing circuit board is mostly bonded by bonding glue, but the radiating fin is usually worn and damaged by long-time use, so that the radiating effect is poor.

In order to realize the purpose, the utility model is realized by the following technical scheme: the utility model provides a power adapter circuit board fin, includes circuit board body and fin, it is fixed through the joint installation component between circuit board body and the fin, including fixture block and stopper in the joint installation component, one side of fixture block and one side fixed connection of fin, the standing groove has been seted up on the surface of circuit board body, the sliding tray has all been seted up to the both sides of standing groove, the surface of fixture block and stopper all with the internal surface sliding connection of sliding tray, one side fixedly connected with spring of stopper, one end of spring and one side fixed connection of fin, and the bottom of fin and the internal surface contact of standing groove.

Preferably, the top of the radiating fin is provided with a radiating groove, the inner surface of the radiating groove is provided with radiating holes, the distances between the adjacent radiating grooves and the adjacent radiating holes are equal, and the diameters of the plurality of radiating holes are consistent.

Preferably, the radiating fin is made of a copper conductor, and a base material layer, a corrosion-resistant layer and a wear-resistant layer are arranged on the surface of the radiating fin.

Preferably, the top of the base material layer is fixedly bonded with the bottom of the corrosion-resistant layer through an adhesive, and the bottom of the base material layer is fixedly bonded with the top of the wear-resistant layer through an adhesive.

Preferably, the corrosion-resistant layer comprises a butyronitrile modified phenolic resin layer, an epoxy resin layer, an alkyd resin layer and a polyurethane resin layer, and the top of the butyronitrile modified phenolic resin layer is fixedly connected with the bottom of the epoxy resin layer.

Preferably, the top of the epoxy resin layer is fixedly connected with the bottom of the alkyd resin layer, and the top of the alkyd resin layer is fixedly connected with the bottom of the polyurethane resin layer.

Advantageous effects

The utility model provides a radiating fin of a power adapter circuit board. Compared with the prior art, the method has the following beneficial effects:

(1) this power adapter circuit board fin through being provided with joint installation component, puts into the sliding tray with the stopper and the spring of fin one side, also removes to the standing groove until the fixture block in to restoring force through the spring makes the standing groove of fin and circuit board body install, with this dismantlement of fin when changing has been made things convenient for, has avoided the damage to the circuit board body simultaneously, has improved the thermal diffusivity of fin moreover.

(2) This power adapter circuit board fin through being provided with the fin, carries out even paining through the adhesive, paints corrosion-resistant layer and wearing layer in proper order, treats that it throws into the use after drying to the corrosion resistance and the wearability of fin have been improved, make the life of this power adapter circuit board fin to prolong.

Drawings

FIG. 1 is a perspective view of the external structure of the present invention;

FIG. 2 is an exploded perspective view of the snap-fit assembly of the present invention;

FIG. 3 is a perspective sectional view of the heat sink of the present invention;

FIG. 4 is a schematic view of the layer structure of the substrate layer of the present invention;

fig. 5 is a schematic view of the layer structure of the corrosion-resistant layer of the present invention.

In the figure: the circuit board comprises a circuit board body 1, a heat radiating fin 2, a clamping installation component 3, a clamping block 31, a limiting block 32, a placing groove 33, a sliding groove 34, a spring 35, a heat radiating groove 4, a heat radiating hole 5, a wear-resistant layer 6, a base material layer 7, an corrosion-resistant layer 8, a butyronitrile modified phenolic resin layer 81, an epoxy resin layer 82, an alkyd resin layer 83 and a polyurethane resin layer 84.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a power adapter circuit board radiating fin comprises a circuit board body 1 and a radiating fin 2, wherein the top of the radiating fin 2 is provided with a radiating groove 4, the inner surface of the radiating groove 4 is provided with radiating holes 5, the distances between adjacent radiating grooves 4 and the radiating holes 5 are equal, the aperture sizes of a plurality of radiating holes 5 are consistent, the radiating fin 2 is made of a copper conductor material, the surface of the radiating fin 2 is provided with a base material layer 7, an anti-corrosion layer 8 and a wear-resistant layer 6, the top of the base material layer 7 is fixedly bonded with the bottom of the anti-corrosion layer 8 through an adhesive, the bottom of the base material layer 7 is fixedly bonded with the top of the wear-resistant layer 6 through the adhesive, the anti-corrosion layer 8 comprises a butyronitrile modified phenolic resin layer 81, an epoxy resin layer 82, an alkyd resin layer 83 and a polyurethane resin layer 84, the top of the butyronitrile modified phenolic resin layer 81 is fixedly connected with the bottom of the epoxy resin layer 82, and the top of the epoxy resin layer 82 is fixedly connected with the bottom of the alkyd resin layer 83, the top of the alkyd resin layer 83 is fixedly connected with the bottom of the polyurethane resin layer 84, the heat sink 2 is arranged, the corrosion-resistant layer 8 and the wear-resistant layer 6 are coated in sequence by uniformly coating the adhesive, and the heat sink is put into use after being dried, so that the corrosion resistance and the wear resistance of the heat sink 2 are improved, the service life of the heat sink of the power adapter circuit board is prolonged, the circuit board body 1 and the heat sink 2 are fixed by the clamping and mounting assembly 3, the clamping and mounting assembly 3 comprises the fixture block 31 and the limiting block 32, the fixture block 31 and the limiting block 32 are both in sliding clamping connection with the inside of the sliding groove 34, one side of the fixture block 31 is fixedly connected with one side of the heat sink 2, the surface of the circuit board body 1 is provided with the placing groove 33, the sliding grooves 34 are both arranged on both sides of the placing groove 33, and the outer surfaces of the fixture block 31 and the limiting block 32 are both in sliding connection with the inner surface of the sliding groove 34, one side fixedly connected with spring 35 of stopper 32, one end of spring 35 and one side fixed connection of fin 2, and the bottom of fin 2 and the internal surface contact of standing groove 33, through being provided with joint installation component 3, put into sliding tray 34 with stopper 32 and spring 35 of fin 2 one side, until fixture block 31 also moves to standing groove 33, and make fin 2 and standing groove 33 of circuit board body 1 install through the restoring force of spring 35, so as to make things convenient for the dismantlement of fin 2 when changing, avoided the damage to circuit board body 1 simultaneously, and improved the thermal diffusivity of fin, the content that does not make a detailed description in this specification all belongs to the prior art that skilled person knows at the same time.

When the power adapter circuit board radiating fin works, firstly, the corrosion-resistant layer 8 and the wear-resistant layer 6 are uniformly coated on the surface of the radiating fin 2 by using an adhesive, the radiating fin 2 can be put into use after being dried, the corrosion-resistant layer 8 and the wear-resistant layer 6 are sequentially coated by using the adhesive, and the radiating fin is put into use after being dried, so that the corrosion resistance and the wear resistance of the radiating fin 2 are improved, the service life of the radiating fin of the power adapter circuit board is prolonged, then, the limiting block 32 on one side of the radiating fin 2 is clamped with the sliding groove 34, the contraction of the spring 35 is squeezed until the clamping block 31 is put into the placing groove 33, the clamping block 31 is driven to be clamped with the sliding groove 34 by the restoring force of the squeezing spring 35, and the limiting block 32 and the spring 35 on one side of the radiating fin 2 are put into the sliding groove 34 by arranging the clamping mounting component 3, until the fixture block 31 moves into the placement groove 33, the heat sink 2 is mounted on the placement groove 33 of the circuit board body 1 through the restoring force of the spring 35, so that the heat sink 2 can be conveniently detached during replacement, the circuit board body 1 is prevented from being damaged, and the heat dissipation performance of the heat sink is improved.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments 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. A power adapter circuit board fin which characterized in that: the radiating structure comprises a circuit board body (1) and a radiating fin (2), wherein the circuit board body (1) and the radiating fin (2) are fixed through a clamping installation component (3);

including fixture block (31) and stopper (32) in joint installation component (3), one side of fixture block (31) and one side fixed connection of fin (2), standing groove (33) have been seted up on the surface of circuit board body (1), sliding tray (34) have all been seted up to the both sides of standing groove (33), the surface of fixture block (31) and stopper (32) all with the interior surface sliding connection of sliding tray (34), one side fixed connection of stopper (32) has spring (35), one end of spring (35) and one side fixed connection of fin (2), and the interior surface contact of the bottom of fin (2) and standing groove (33).

2. The power adapter circuit board heat sink of claim 1, wherein: radiating groove (4) have been seted up at the top of fin (2), and radiating hole (5) have been seted up to the internal surface of radiating groove (4), and are adjacent the distance equals between radiating groove (4) and radiating hole (5), and the aperture size of a plurality of radiating holes (5) is unanimous.

3. The power adapter circuit board heat sink of claim 1, wherein: the radiating fin (2) is made of a copper conductor, and a base material layer (7), a corrosion-resistant layer (8) and an abrasion-resistant layer (6) are arranged on the surface of the radiating fin (2).

4. The power adapter circuit board heat sink of claim 3, wherein: the top of the base material layer (7) is fixedly bonded with the bottom of the corrosion-resistant layer (8) through an adhesive, and the bottom of the base material layer (7) is fixedly bonded with the top of the wear-resistant layer (6) through the adhesive.

5. The power adapter circuit board heat sink of claim 3, wherein: the corrosion-resistant layer (8) comprises a butyronitrile modified phenolic resin layer (81), an epoxy resin layer (82), an alkyd resin layer (83) and a polyurethane resin layer (84), and the top of the butyronitrile modified phenolic resin layer (81) is fixedly connected with the bottom of the epoxy resin layer (82).

6. The power adapter circuit board heat sink of claim 5, wherein: the top of the epoxy resin layer (82) is fixedly connected with the bottom of the alkyd resin layer (83), and the top of the alkyd resin layer (83) is fixedly connected with the bottom of the polyurethane resin layer (84).