CN212367102U

CN212367102U - Novel switching power supply

Info

Publication number: CN212367102U
Application number: CN202021025028.8U
Authority: CN
Inventors: 覃继巧; 罗岚; 刘慧�; 柏建国
Original assignee: Shenzhen Uugreenpower Electrical Co ltd
Current assignee: Shenzhen Youyou Green Energy Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-01-15
Anticipated expiration: 2030-06-05

Abstract

The utility model provides a novel switching power supply, includes cavity casing and power electron device, the cavity casing divides power chamber and heat dissipation chamber, set up radiator, heat production electron device and fan in the heat dissipation intracavity, the power intracavity sets up the MOS pipe, the power chamber is through setting up the power chamber with interval casing between the heat dissipation chamber with the radiator forms airtight cavity, the MOS pipe sets up on the radiator, the heat dissipation chamber can carry out the heat exchange with the outside air. Implement the utility model discloses a novel switching power supply through setting up the MOS pipe in inclosed power chamber, can satisfy the heat dissipation requirement when satisfying waterproof dirt-proof, and then improves switching power supply inside sensitive electron device's life, reduces the later maintenance cost.

Description

Novel switching power supply

Technical Field

The utility model relates to a power field, more specifically say, relate to a novel switching power supply.

Background

In the existing charging pile application, the switching power supply adopted by the charging pile is basically an IP20 power supply, namely, the switching power supply is neither dustproof nor waterproof. However, the practical application environment of the charging pile is sometimes very harsh. For example, when meeting the high-salt and high-humidity environment at sea, the corrosion and short-circuit failure of the internal module of the switching power supply are easily caused, and the maintenance cost is high. In addition, because the switching power supply generates a large amount of heat in the operation process, the heat dissipation mode of the traditional switching power supply is a direct-ventilation mode, namely, a fan arranged at the front end of the switching power supply forcibly blows air into the switching power supply, so that heat generated by electronic devices in the switching power supply is blown to the rear end of the switching power supply, and the heat is exhausted out of the switching power supply through an air outlet at the rear end of the switching power supply. In the process, wind directly hits on the electronic devices inside, so that the dustproof and waterproof effects cannot be achieved, the service life of the electronic devices is greatly shortened, the switching power supply is easy to damage, and the maintenance cost is further increased.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in, to the above-mentioned defect of prior art, provide one kind can be waterproof dustproof, can satisfy the heat dissipation again, and then improve switching power supply inside sensitive electronic device's life, reduce the novel switching power supply of later maintenance cost.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a novel switching power supply, includes cavity casing and power electronics, the cavity casing divides power chamber and heat dissipation chamber, set up radiator, heat production electronics and fan in the heat dissipation intracavity, the power intracavity sets up the MOS pipe, the power chamber is through setting up the power chamber with interval casing between the heat dissipation chamber with the radiator forms airtight cavity, the MOS pipe sets up on the radiator, the heat dissipation chamber can carry out the heat exchange with the outside air.

Novel switching power supply in, set up the shell opening on the interval casing, the base plate laminating of radiator the interval casing sets up, the MOS pipe warp the shell opening subsides are established on the base plate of radiator.

Novel switching power supply in, the radiator sets up the first side in heat dissipation chamber the fan sets up the second side in heat dissipation chamber, heat production electron device sets up the radiator with between the fan, the air-out direction of fan is just right the radiating fin of radiator just heat production electron device is located the air-out wind of fan is on the way in order to take the heat out the heat dissipation chamber.

In the novel switching power supply of the present invention, the heat generating electronic device includes a plurality of transformers and an inductor.

In the novel switching power supply, each group of the transformer and the inductor are respectively arranged in a transformer inductor box, and a plurality of transformer inductor box intervals are arranged in the heat dissipation cavity.

In the novel switching power supply of the present invention, the power chamber is located above the heat dissipation chamber.

Implement the utility model discloses a novel switching power supply through setting up the MOS pipe in inclosed power chamber, can satisfy the heat dissipation requirement when satisfying waterproof dirt-proof, and then improves switching power supply inside sensitive electron device's life, reduces the later maintenance cost. Further, by disposing the transformer and the inductor in the case, the service life of the electronic device can be further improved. Still further, through setting up transformer and inductance between radiator and fan, can discharge the heat that transformer and inductance produced better, and then better satisfy switching power supply's heat dissipation demand.

Drawings

The invention will be further explained with reference to the drawings and examples, wherein:

fig. 1 is an external view of the novel switching power supply of the present invention;

fig. 2 is a cross-sectional view of the novel switching power supply shown in fig. 1 taken along line a-a;

fig. 3 is a cross-sectional view of the novel switching power supply shown in fig. 1 taken along line B-B.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is an external view of the novel switching power supply of the present invention. Fig. 2 is a cross-sectional view of the novel switching power supply shown in fig. 1, taken along line a-a. Fig. 3 is a cross-sectional view of the novel switching power supply shown in fig. 1 taken along line B-B. Referring to fig. 1-3, the novel switching power supply of the present invention includes a hollow housing 100 and power electronics housed in the hollow housing 100. Those skilled in the art will appreciate that the hollow housing 100 may be any shape or material known in the art for use as a power supply housing, and that the power supply electronics may include any suitable power supply electronics required to form a switching power supply, such as an IP20 power supply, including, but not limited to, capacitors, resistors, inductors, power chips, MOS transistors, transformers, and any suitable power supply circuitry formed from power supply electronics, such as filter circuitry, rectifier circuitry, and the like.

In the present application, the hollow casing 100 is divided into a power cavity 110 and a heat dissipation cavity 120, the heat sink 200, the heat generating electronic device 300 and the fan 400 are disposed in the heat dissipation cavity 120, and the MOS transistor 500 is disposed in the power cavity 110. As shown in fig. 2 to 3, the cross-section of the power cavity 110 and the heat dissipation cavity 120 is rectangular, and the power cavity 110 is located above the heat dissipation cavity 120 in the direction of the short side of the rectangle. Of course, in other preferred embodiments of the present invention, the power chamber 110 and the heat dissipation chamber 120 may be disposed on the left and right sides.

As further shown in fig. 2-3, the power chamber 110 forms a sealed cavity with the heat sink 200 and a spacer housing 130 disposed between the power chamber 110 and the heat dissipation chamber 120. A housing opening is formed in the spacer housing 130, the substrate 210 of the heat sink 200 is attached to the spacer housing 130, and the MOS transistor 500 is attached to the substrate 210 of the heat sink 200 through the housing opening. Thus, the MOS transistor 500 is sealed in the power cavity 110. Since the power chamber 110 is completely sealed, no external air, dust or water vapor can enter, so that the MOS transistor 500 is ensured not to contact with the external air and not to be corroded by the dust or the water vapor, and the service life of the MOS transistor 500 can be prolonged. Meanwhile, since the MOS transistor 500 is disposed on the substrate 210 of the heat sink 200, heat can be dissipated through the substrate 210 of the heat sink 200, and the influence of high temperature on the lifetime of the MOS transistor 500 is also avoided. Therefore, this embodiment adopts simple structure to realize simultaneously the waterproof dustproof and the heat dissipation of MOS pipe through ingenious design.

Further, the heat sink 200 is disposed on a first side of the heat dissipation chamber 120, the fan 400 is disposed on a second side of the heat dissipation chamber 120, and the heat generating electronic device 300 is disposed between the heat sink 200 and the fan 400. In the preferred embodiment, the heat-generating electronic device 300 includes multiple sets of transformers and inductors. In other preferred embodiments of the present invention, other heat generating electronic devices, such as power chips, batteries, etc., may also be included.

In the preferred embodiment of the present invention, as shown in fig. 2, the heat sink 200 is tightly attached to the casing of one side of the heat dissipation chamber 120, and the substrate 210 thereof is attached to the spacing casing 130, and the heat dissipation fins 220 thereof are aligned with the air outlet direction of the fan 400. The fan 400 is also disposed close to the housing of the heat dissipation chamber 120, and is preferably located on the side opposite to the heat dissipation chamber 120. Between the fan 400 and the heat sink 200, preferably on the air outlet path of the fan, multiple sets of transformers and inductors are disposed. Thus, the wind blown out from the fan 200 passes through the transformer and the inductor, brings the generated heat to the heat sink 200, and brings the heat out of the heat dissipation cavity 120 through the heat sink 200, thereby achieving the purpose of heat dissipation. Preferably, in the preferred embodiment of the present invention, each group of the transformer and the inductor is respectively disposed in one transformer inductor box 600, and the plurality of transformer inductor boxes 600 are disposed at intervals in the heat dissipation chamber 120, so as to further satisfy the waterproof and dustproof requirements of the transformer and the inductor, and improve the service life thereof.

While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a novel switching power supply, includes cavity casing and power electron device, its characterized in that, the cavity casing divides power chamber and heat dissipation chamber, set up radiator, heat production electron device and fan in the heat dissipation intracavity, the power intracavity sets up the MOS pipe, the power chamber is through setting up the power chamber with interval casing between the heat dissipation chamber with the radiator forms airtight cavity, the MOS pipe sets up on the radiator, the heat dissipation chamber can carry out the heat exchange with the outside air.

2. The novel switching power supply according to claim 1, wherein a housing opening is provided on the spacer housing, the substrate of the heat sink is attached to the spacer housing, and the MOS transistor is attached to the substrate of the heat sink through the housing opening.

3. The novel switching power supply according to claim 1 or 2, wherein the heat sink is disposed on a first side of the heat dissipation chamber, the fan is disposed on a second side of the heat dissipation chamber, the heat generating electronic device is disposed between the heat sink and the fan, an air outlet direction of the fan is directly opposite to the heat dissipation fins of the heat sink, and the heat generating electronic device is located on an air outlet path of the fan to take heat out of the heat dissipation chamber.

4. The novel switching power supply of claim 3, wherein said heat-generating electronics comprise multiple sets of transformers and inductors.

5. The novel switching power supply according to claim 4, wherein each set of transformer and inductor is disposed in a transformer inductor box, and a plurality of transformer inductor boxes are disposed at intervals in the heat dissipation chamber.

6. The novel switching power supply according to claim 1, wherein the power cavity is located above the heat dissipation cavity.