CN216672647U

CN216672647U - High-power charger ceramic shovel box heat radiation structure

Info

Publication number: CN216672647U
Application number: CN202123446967.7U
Authority: CN
Inventors: 李�浩; 王志彬; 张志佳; 雷剑
Original assignee: Dazhou Tianbao Jinhu Electronic Co ltd; Huizhou Tianbao Chuang Neng Technology Co ltd; Ten Pao Electronics Huizhou Co Ltd
Current assignee: Dazhou Tianbao Jinhu Electronic Co ltd; Huizhou Tianbao Chuang Neng Technology Co ltd; Ten Pao Electronics Huizhou Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-03
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a high-power charger ceramic shovel box heat dissipation structure, which relates to the technical field of chargers and comprises a charger body, wherein a heat dissipation fan communicated with the outside is installed on the inner wall of the charger body, a die-casting shell is fixedly connected to the inner wall of the bottom of the charger body, a heat dissipation fin bone position is arranged on the side wall of the die-casting shell, a plurality of ceramic shovel boxes are installed in the die-casting shell, connecting strips are fixedly connected among the ceramic shovel boxes, MOS (metal oxide semiconductor) tubes are installed at the tops of the ceramic shovel boxes, red bakelite is also installed at the tops of the ceramic shovel boxes, and the red bakelite, the MOS tubes, the ceramic shovel boxes and the die-casting shell are fixedly connected through locking screws. The heat dissipation scheme of the utility model effectively solves the problems of heat conduction, heat dissipation, insulation and electric clearance, and can enable the high-power charger to continuously work.

Description

High-power charger ceramic shovel box heat radiation structure

Technical Field

The utility model relates to the technical field of chargers, in particular to a heat dissipation structure of a ceramic shovel box of a high-power charger.

Background

A Charger (Charger) is a device that charges other electrical appliances. The equipment adopts a high-frequency power supply technology, applies an intelligent dynamic adjustment charging technology, utilizes a power electronic semiconductor device to convert alternating current with constant voltage and frequency into direct current, generally comprises a flexible circuit board, an electronic component and the like, can be divided into a power frequency machine and a high-frequency machine according to the working frequency of a designed circuit, is widely applied in various fields, particularly in the living field, is widely applied to common electrical appliances such as mobile phones, cameras and the like, but the charger needs to carry out heat dissipation treatment when in use.

At present, a charger mainly adopts natural cooling of a radiating fin or convection air cooling of a fan to solve the radiating problem, but because an insulating sheet needs to be arranged between an MOS (metal oxide semiconductor) tube and the radiating fin to play a role in insulation, mutual restriction occurs in the aspects of radiating, insulation and safety distance, heat conduction is poor, and the whole radiating efficiency is not high; the installation distance is difficult to meet, and high pressure resistance cannot be realized; the heat dissipation effect can not meet the requirement of continuous high-temperature work of products, so that the power of the products is reduced, and the safety problem of the products frying machine is solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a ceramic shovel box heat dissipation structure of a high-power charger. The advantages are that: the radiating effect is good, can last high temperature work.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a high-power charger pottery shovel box heat radiation structure, includes charger body, charger body installs in with external communicating radiator fan, charger body's bottom inner wall fixedly connected with die-casting shell, fin bone position has been seted up to die-casting shell's top and lateral wall, install a plurality of pottery shovel boxes in the die-casting shell, and a plurality of pottery shovel fixedly connected with connecting strip between the box, the MOS pipe is installed at the top of pottery shovel box, the padauk is installed at MOS pipe top, through locking screw fixed connection between padauk, MOS pipe, pottery shovel box and the die-casting shell.

Preferably, the top of the ceramic shovel box is provided with a concave groove matched with the MOS tube, and the MOS tube is placed in the concave groove.

Preferably, the bottom of the ceramic shovel box is fixedly connected with a plurality of heat conducting blocks, and the top of the die-casting shell is provided with a notch matched with the heat conducting blocks.

Preferably, the bottom fixedly connected with backup pad of pottery shovel box, the spacing groove has all been seted up to the fin bone position both sides inner wall of die-casting shell, spacing inslot wall is hugged closely to the both sides of backup pad, backup pad top one side and spacing inslot top inner wall are fixed with first tension spring, backup pad bottom one side and spacing inslot bottom inner wall are fixed with second tension spring.

Preferably, the bottom of the supporting plate is fixedly connected with an insulating protective layer.

Preferably, a notch is formed in one side of the die-casting shell, a cover plate is arranged on the top of the die-casting shell in a sliding mode, and the cover plate is L-shaped.

Preferably, the bottom both ends fixedly connected with guide block of apron, the guide way with guide block looks adaptation is seted up at the top both ends of die-casting shell, the female head of joint has been seted up to one side bottom of breach, the apron is close to one side of the female head of joint and is fixed with the public head of joint.

Preferably, a threaded hole is formed in the top of the die-casting shell, and the locking screw rod penetrates through the red bakelite in a sliding manner and is in threaded connection with the threaded hole formed in the die-casting shell.

The utility model has the beneficial effects that:

1. according to the utility model, when the charger body works, the MOS tube of the main heating component generates heat, the heat generated by the MOS tube is quickly transferred to the die-casting shell through the ceramic shovel box, and the ceramic thermal conductivity is 20W/(m-K); the voltage resistance is 15 KV/mm; the problems of heat conduction, insulation and electric clearance of a high-power device are effectively solved, the red bakelite is fixed to the die-casting shell, and the MOS tube and the ceramic shovel box are tightly pressed to fully contact and conduct heat to the die-casting shell, and the red bakelite is selected because the requirements of insulation, high temperature resistance, high pressure resistance, good strength and easiness in processing are met; the whole design can solve the problems of heat conduction and electric insulation high temperature and high pressure resistance, meets the requirement of continuous work of the product, and timely conducts and radiates the heat of the device while meeting the requirements of heat dissipation insulation and high pressure resistance.

2. According to the utility model, the bottom of the ceramic shovel box is fixedly connected with the plurality of heat conducting blocks, the top of the die-casting shell is provided with the notches matched with the heat conducting blocks, and the heat conducting blocks are inserted in the notches, so that the contact area of heat conduction is increased, and the heat conduction efficiency is improved.

3. According to the utility model, the supporting plate, the limiting groove, the first tension spring and the second tension spring are arranged, the supporting plate is positioned in the limiting groove by adjusting the locking screw rod during installation under the action of the first tension spring and the second tension spring, the installation distance between the ceramic shovel box and the die-casting shell can be adjusted under the action of elasticity, and the protection performance is better.

Drawings

Fig. 1 is a schematic perspective view of a heat dissipation structure of a ceramic shovel box of a high-power charger according to the present invention;

FIG. 2 is a schematic structural diagram of a die-casting housing of a heat dissipation structure of a ceramic shovel box of a high-power charger according to the present invention;

FIG. 3 is a schematic view of a cross-sectional structure of the inside of a die-casting housing of a heat dissipation structure of a ceramic shovel box of a high-power charger according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a position a in fig. 3 of a heat dissipation structure of a ceramic shovel box of a high-power charger according to the present invention.

In the figure: 1. a charger body; 2. a heat radiation fan; 3. die casting the housing; 301. a heat radiating rib position; 4. a cover plate; 5. a ceramic shovel box; 6. an MOS tube; 7. red bakelite; 8. locking the screw rod; 9. a threaded hole; 10. a guide groove; 11. a guide block; 12. clamping a female head; 13. a heat conducting block; 14. a notch; 15. a support plate; 16. an insulating protective layer; 17. a limiting groove; 18. a first tension spring; 19. a second tension spring.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the figures, which are based on the orientations and positional relationships shown in the figures, and are used for convenience in describing the patent and for simplicity in description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by one of ordinary skill in the art as appropriate.

Referring to fig. 1-2, a high-power charger pottery shovel box heat radiation structure, including charger body 1, charger body 1 installs in with external communicating radiator fan, charger body 1's bottom inner wall fixedly connected with die-casting shell 3, fin bone position 301 has been seted up to die-casting shell 3's top and lateral wall, install a plurality of pottery shovel boxes 5 in the die-casting shell 3, and a plurality of pottery shovel fixedly connected with connecting strip between the box 5, MOS pipe 6 is installed at the top of pottery shovel box 5, padauk 7 is installed at the top of MOS pipe 6, padauk 7, MOS pipe 6, through locking screw 8 fixed connection between pottery shovel box 5 and the die-casting shell 3.

Referring to fig. 3-4, the top of the ceramic shovel box 5 is provided with a concave groove adapted to the MOS transistor 6, the MOS transistor 6 is placed in the concave groove, the MOS transistor 6 can be limited by the concave groove, so that the MOS transistor 6 is more stable and the installation is more convenient, the bottom of the ceramic shovel box 5 is fixedly connected with a plurality of heat conducting blocks 13, the top of the die-casting housing 3 is provided with a notch 14 adapted to the heat conducting blocks 13, the heat conducting blocks 13 are inserted in the notch 14 to increase the contact area of heat conduction and improve the heat conduction efficiency, the bottom of the ceramic shovel box 5 is fixedly connected with a support plate 15, the inner walls of both sides of the radiating rib position of the die-casting housing 3 are provided with limiting grooves 17, the inner walls of the limiting grooves 17 are tightly attached to both sides of the support plate 15, a first tension spring 18 is fixed to the inner wall of the top of the support plate 15, a second tension spring 19 is fixed to the inner wall of the bottom of the limiting groove 17, under the effect of first tension spring 18 and second tension spring 19, during the installation, through adjusting locking screw 8 for backup pad 15 is located spacing groove 17, under the effect of elasticity, can adjust the installation distance between ceramic shovel box 5 and the die-casting shell 3, and the protectiveness is better.

Referring to fig. 2-4, an insulating protective layer 16 is fixedly connected to the bottom of the supporting plate 15, the insulating protective layer 16 is fixed to the bottom of the supporting plate 15 to facilitate movement of the ceramic shovel box 5, so that the installation position is convenient to adjust, a notch is formed in one side of the die-casting shell 3, a cover plate 4 is slidably arranged on the top of the die-casting shell 3, the cover plate 4 is in an L-shaped structure, the die-casting shell 3 is sealed by the cover plate 4 in the L-shaped structure to prevent dust from entering, guide blocks 11 are fixedly connected to two ends of the bottom of the cover plate 4, guide grooves 10 matched with the guide blocks 11 are formed in two ends of the top of the die-casting shell 3, a clamping female head 12 is formed in the bottom of one side of the notch, a clamping male head is fixed to one side of the cover plate 4 close to the clamping female head 12, the guide blocks 11 are moved into the guide grooves 10, the cover plate 4 is pushed to clamp the clamping male head in the clamping female head 12, accomplish the seal installation of apron 4, whole process convenient to detach installation, it is sealed dustproof effectual, die-casting shell 3's top set up threaded hole 9, locking screw 8 slides and passes 9 threaded connection of the screw hole of seting up on padauk 7 and the die-casting shell 3, shovels box 5 through locking screw 8 with padauk 7 and pottery and fixes the top at die-casting shell 3, and the installation is stable, the later stage of being convenient for dismantlement.

The working principle is as follows: when the charger body 1 works, the main heating element MOS tube 6 generates heat, the heat generated by the MOS tube 6 is quickly transferred to the die-casting shell 3 through the ceramic shovel box 5, and the ceramic thermal conductivity is 20W/(m-K); the withstand voltage is 15 KV/mm; the problems of heat conduction, insulation and electric clearance of a high-power device are effectively solved, the red bakelite 7 is fixed on the die-casting shell 3, and the MOS tube 6 and the ceramic shovel box 5 are tightly pressed to fully contact and conduct heat to the die-casting shell 3, and the red bakelite 7 is selected because the requirements of insulation, high temperature resistance, high pressure resistance, good strength and easy processing are met; the whole design can solve the problems of heat conduction and electric insulation high temperature and high pressure resistance, meets the requirement of continuous work of the product, and timely conducts and radiates the heat of the device while meeting the requirements of heat dissipation insulation and high pressure resistance.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a high-power charger pottery shovel box heat radiation structure, includes charger body (1), charger body (1) interior install with external communicating radiator fan, its characterized in that, the bottom inner wall fixedly connected with die-casting shell (3) of charger body (1), fin bone position (301) have been seted up to the top and the lateral wall of die-casting shell (3), install a plurality of pottery shovel box (5) in die-casting shell (3), and fixedly connected with connecting strip between a plurality of pottery shovel box (5), MOS pipe (6) are installed at the top of pottery shovel box (5), bakelite (7) are installed at the top of MOS pipe (6), through locking screw (8) fixed connection between bakelite (7), MOS pipe (6), pottery shovel box (5) and die-casting shell (3).

2. The ceramic shovel box heat dissipation structure for the high-power charger according to claim 1, wherein a concave groove matched with the MOS tube (6) is formed at the top of the ceramic shovel box (5), and the MOS tube (6) is placed in the concave groove.

3. The ceramic shovel box heat dissipation structure for the high-power charger according to claim 1, wherein a plurality of heat conduction blocks (13) are fixedly connected to the bottom of the ceramic shovel box (5), and a notch (14) matched with the heat conduction blocks (13) is formed in the top of the die-casting housing (3).

4. The heat dissipation structure of a high-power ceramic shovel box for a charger according to claim 1, wherein a supporting plate (15) is fixedly connected to the bottom of the ceramic shovel box (5), limiting grooves (17) are formed in inner walls of two sides of a rib position of a heat dissipation fin of the die-casting housing (3), two sides of the supporting plate (15) are tightly attached to inner walls of the limiting grooves (17), a first tension spring (18) is fixed on one side of the top of the supporting plate (15) and the inner wall of the top of the limiting grooves (17), and a second tension spring (19) is fixed on one side of the bottom of the supporting plate (15) and the inner wall of the bottom of the limiting grooves (17).

5. The ceramic shovel box heat dissipation structure for the high-power charger as recited in claim 4, wherein an insulating protective layer (16) is fixedly connected to the bottom of the supporting plate (15).

6. The ceramic shovel box heat dissipation structure for the high-power charger according to claim 1, wherein a notch is formed in one side of the die-casting housing (3), a cover plate (4) is slidably arranged on the top of the die-casting housing (3), and the cover plate (4) is L-shaped.

7. The ceramic shovel box heat dissipation structure for the high-power charger according to claim 6, wherein two ends of the bottom of the cover plate (4) are fixedly connected with guide blocks (11), two ends of the top of the die-casting shell (3) are provided with guide grooves (10) matched with the guide blocks (11), the bottom of one side of the gap is provided with a female clamping head (12), and one side of the cover plate (4) close to the female clamping head (12) is fixedly provided with a male clamping head.

8. The high-power ceramic shovel box heat dissipation structure for the charger according to claim 1, wherein a threaded hole (9) is formed in the top of the die-casting housing (3), and the locking screw (8) is in threaded connection with the threaded hole (9) formed in the die-casting housing (3) in a sliding manner through the red bakelite (7).