CN216216552U

CN216216552U - Power adapter with overheat protection structure

Info

Publication number: CN216216552U
Application number: CN202122423434.0U
Authority: CN
Inventors: 李赵斌
Original assignee: Dongguan Hp Power Technology Ltd
Current assignee: Dongguan Hp Power Technology Ltd
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-04-05
Anticipated expiration: 2031-10-08

Abstract

The utility model discloses a power adapter with an overheat protection structure, which comprises a top shell and a heat dissipation assembly, wherein the bottom of the top shell is provided with a bottom shell, the bottom of the bottom shell is provided with a metal contact, one side of the top shell is provided with a protective shell, one side of the bottom shell is provided with a power line, the tail end of the power line is connected with a charging connector, the other end of the power line is connected with a resistance element, the other side of the resistance element is provided with a transformer, the heat dissipation assembly for cooling is arranged on one side of the transformer, and the heat dissipation assembly comprises a refrigeration plate, a ventilation hole, a heat dissipation fan, a dust screen, a fixing plate and a fixing shell. This power adapter with overheat protection structure adopts the mutually supporting setting between a plurality of subassemblies, not only can realize dispelling the heat to the transformer, can also assist the fire extinguishing to the power adapter who has fired simultaneously, and because carry out the block setting through the buckle between top shell and the drain pan, the top shell of being convenient for separately maintains with the drain pan.

Description

Power adapter with overheat protection structure

Technical Field

The utility model relates to the technical field of power adapters, in particular to a power adapter with an overheat protection structure.

Background

The Power adapter (Power adapter) is a Power supply conversion device for small portable electronic equipment and electronic appliances, generally comprises components such as a shell, a transformer, an inductor, a capacitor, a control IC (integrated circuit), a PCB (printed circuit board) and the like, and the working principle of the Power adapter is that alternating current input is converted into direct current output; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type. The intelligent anti-theft device is widely matched with security cameras, set top boxes, routers, light bars, massage instruments and other equipment.

The power adapter in the market has the shortcoming that cooling and heat dissipation cannot be achieved, under the condition that the power adapter is connected to a power supply, a transformer in the power adapter can continuously generate heat, the heat generated by the transformer is higher as the service life is longer, and a fire disaster can be caused when the temperature reaches a critical value of the transformer.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a power adapter with an overheat protection structure to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: a power adapter with an overheat protection structure comprises a top shell and a heat dissipation component, wherein the bottom of the top shell is provided with a bottom shell, and the bottom of the bottom shell is provided with a metal contact, one side of the top shell is provided with a protective shell, one side of the bottom shell is provided with a power line, the tail end of the power line is connected with a charging joint, the other end of the power line is connected with a resistance element, the other side of the resistance element is provided with a transformer, the heat dissipation component for cooling is arranged at one side of the transformer and comprises a refrigeration plate, a vent hole, a heat dissipation fan, a dust screen, a fixing plate and a fixing shell, the vent hole is arranged on the surface of the refrigeration plate, and a cooling fan is arranged on one side of the ventilation hole, a dustproof net is arranged on the other side of the cooling fan, the fixing plate is arranged in the fixed shell, and the fixed shell is fixedly connected with the outer side of the cooling fan through the fixing plate.

Preferably, the bottom of the top shell is provided with a buckle, and a heat dissipation hole is formed in a position, close to the heat dissipation assembly, of one side of the top shell.

Preferably, the protecting crust is inside to be provided with the high-pressure tank, and the high-pressure tank is connected with the feed pipe, the shower nozzle subassembly that is used for putting out a fire is installed to the feed pipe bottom.

Preferably, the sprayer assembly comprises a glass tube, a baffle plate and a frame, wherein the baffle plate is arranged at the bottom of the glass tube and is vertically arranged at the bottom of the frame.

Preferably, a soft rubber mat is arranged at the joint of the power line and the resistance element, hooks are clamped on two sides of the soft rubber mat, and the hooks are arranged in a U-shaped structure.

Preferably, the top of the refrigeration plate is provided with a refrigeration motor, and the refrigeration plate is electrically connected with the refrigeration motor through a wire.

Preferably, one side of the fixed shell is connected with a circuit board, one side of the circuit board is provided with a clamping plate, and the transformer is connected with the circuit board in a clamping manner.

The utility model provides a power adapter with an overheat protection structure, which has the following beneficial effects: this power adapter with overheat protection structure adopts the mutually supporting setting between a plurality of subassemblies, not only can realize dispelling the heat to the transformer, can also assist the fire extinguishing to the power adapter who has fired simultaneously, improves power adapter's safety in utilization, and because carry out the block setting through the buckle between top shell and the drain pan, the top shell of being convenient for separately maintains with the drain pan.

1. According to the utility model, through the arrangement of the heat dissipation assembly, the refrigeration motor controls the refrigeration plate to work, and then the heat dissipation fan arranged in the fixed shell runs, so that the heat dissipation fan brings air around the refrigeration plate to blow cold air around the refrigeration plate to the transformer through the ventilation holes, the transformer is cooled during working, and the service life of the transformer is prolonged.

2. According to the utility model, through the arrangement of the spray head components, the fixed glass tube in the frame is heated and broken, then the dry powder in the fixed glass tube is extruded into the feed tube connected with the high-pressure tank through pressure, and then the dry powder is fed into each group of spray head components through the feed tube and sprayed out, the sprayed dry powder is dispersed through the baffle plate arranged at the bottom of the frame, finally, the fire source in the top shell is extinguished, the fire type in the top shell of the top shell is controlled, and the use safety is improved.

3. According to the utility model, through the matching between the soft rubber pad and the hook, the soft rubber pad is sleeved around the connection part of the power line and the circuit board, and the soft rubber pad is fixed on the circuit board through the hook, so that the soft rubber pad can perform zero-fire line separation on the power line fixed inside, and simultaneously plays a role in secondary auxiliary protection of the power line.

Drawings

FIG. 1 is a schematic diagram of an overall external structure of a power adapter with an overheat protection structure according to the present invention;

FIG. 2 is a schematic diagram illustrating an expanded internal structure of a power adapter with an overheat protection structure according to the present invention;

FIG. 3 is a schematic diagram of a heat sink assembly of a power adapter with an overheat protection structure according to the present invention;

FIG. 4 is a schematic diagram of the internal structure of the top case of the power adapter with an overheat protection structure according to the present invention;

fig. 5 is an enlarged schematic diagram of a power adapter with an overheat protection structure shown in fig. 4.

In the figure: 1. a top shell; 2. a bottom case; 3. a metal contact; 4. a protective shell; 5. a power line; 6. a charging connector; 7. a soft rubber cushion; 8. hooking; 9. a transformer; 10. a heat dissipating component; 1001. a refrigeration plate; 1002. a vent hole; 1003. a heat radiation fan; 1004. a dust screen; 1005. a fixing plate; 1006. a stationary housing; 11. a circuit board; 12. clamping a plate; 13. a resistance element; 14. a refrigeration motor; 15. buckling; 16. a high-pressure tank; 17. a feed pipe; 18. a showerhead assembly; 1801. a glass tube; 1802. a baffle plate; 1803. a frame.

Detailed Description

As shown in fig. 1-3, a power adapter with an overheat protection structure comprises a top shell 1 and a heat dissipation assembly 10, wherein a bottom shell 2 is installed at the bottom of the top shell 1, a metal contact 3 is arranged at the bottom of the bottom shell 2, a protective shell 4 is arranged at one side of the top shell 1, a power cord 5 is arranged at one side of the bottom shell 2, a charging connector 6 is connected to the tail end of the power cord 5, a resistance element 13 is connected to the other end of the power cord 5, a transformer 9 is arranged at the other side of the resistance element 13, the heat dissipation assembly 10 for cooling is installed at one side of the transformer 9, the heat dissipation assembly 10 comprises a refrigeration plate 1001, a vent hole 1002, a heat dissipation fan 1003, a dust screen 1004, a fixing plate 1005 and a fixing shell 1006, a vent hole 1002 is formed in the surface of the refrigeration plate 1001, a heat dissipation fan 1003 is arranged at one side of the vent hole 1002, a dust screen 1004 is arranged at the other side of the heat dissipation fan 1003, and the fixing plate 1005 is installed inside the fixing shell 1006, the fixed housing 1006 is fixedly connected with the outer side of the heat dissipation fan 1003 through the fixing plate 1005, the heat dissipation fan 1003 sucks surrounding air into the fixed housing 1006, the air is cooled through the refrigeration plates 1001 arranged on two sides of the heat dissipation fan 1003, and cold air is blown to the transformer 9 through the heat dissipation fan 1003, so that the transformer 9 is cooled during operation, the service life is prolonged, and meanwhile, the dust screen 1004 can effectively reduce the suction amount of dust during operation of the heat dissipation fan 1003;

referring to fig. 2, a buckle 15 is disposed at the bottom of the top case 1, heat dissipation holes are disposed at a position on one side of the top case 1 close to the heat dissipation assembly 10, the heat dissipation holes improve air flow inside and outside the top case 1, a circuit board 11 is connected to one side of the fixed case 1006, a clamping board 12 is disposed on one side of the circuit board 11, the transformer 9 is connected with the circuit board 11 in a clamping manner, the clamping board 12 fixes the transformer 9, the clamping board 12 protects the periphery of the transformer 9, a soft rubber pad 7 is disposed at a joint of the power line 5 and the resistance element 13, a hook 8 is disposed at two sides of the soft rubber pad 7 in a clamping manner, the hook 8 is in a U-shaped structure, the soft rubber pad 7 can separate zero-fire lines from the internally fixed power line 5, and also protect the power line 5 secondarily, and the hook 8 facilitates fixing the soft rubber pad 7 on the circuit board 11.

Referring to fig. 4-5, a high pressure tank 16 is disposed inside the protective casing 4, the high pressure tank 16 is connected to a supply pipe 17, a nozzle assembly 18 for fire extinguishing is installed at the bottom of the supply pipe 17, the supply pipe 17 provides dry powder delivery for a plurality of nozzle assemblies 18, the nozzle assembly 18 includes a glass tube 1801, a baffle 1802, and a frame 1803, the baffle 1802 is disposed at the bottom of the glass tube 1801, the baffle 1802 is vertically installed at the bottom of the frame 1803, the glass tube 1801 is broken by heat, the dry powder inside the high pressure tank 16 is squeezed into the supply pipe 17 connected to the high pressure tank 16 by pressure, the dry powder is sent into each group of nozzle assemblies 18 by the supply pipe 17 and is sprayed out, and the baffle 1802 plays a role in dispersing the sprayed dry powder.

In summary, when the power adapter with the overheat protection structure is used, firstly, the metal contact 3 is connected with the wiring board to enable the transformer 9 to be electrified to work, then, the charging connector 6 is connected with an electric appliance to be used for supplying power, then, the refrigerating motor 14 arranged on one side of the transformer 9 controls the refrigerating board 1001 to work, then, the radiating fan 1003 arranged in the fixed shell 1006 runs, air around the radiating fan 1003 is blown to the transformer 9 through the vent hole 1002, the temperature around the transformer 9 is reduced, when the temperature of the transformer 9 is too high and fire occurs, the fixed glass tube 1801 in the frame 1803 is heated and broken, then, dry powder in the frame 1803 is squeezed into the feeding tube 17 connected with the high-pressure tank 16 through pressure, then, the dry powder is sent into each group of spray head assemblies 18 through the feeding tube 17 and sprayed out, and the sprayed dry powder is dispersed through the baffle plate 1802 arranged at the bottom of the frame 1803, finally, the fire source in the top shell 1 is extinguished, so that the fire type in the top shell 1 is controlled.

Claims

1. A power adapter with an overheat protection structure comprises a top shell (1) and a heat dissipation assembly (10), and is characterized in that a bottom shell (2) is installed at the bottom of the top shell (1), a metal contact (3) is arranged at the bottom of the bottom shell (2), a protective shell (4) is arranged on one side of the top shell (1), a power line (5) is arranged on one side of the bottom shell (2), a charging connector (6) is connected to the tail end of the power line (5), a resistance element (13) is connected to the other end of the power line (5), a transformer (9) is arranged on the other side of the resistance element (13), the heat dissipation assembly (10) for cooling is installed on one side of the transformer (9), and the heat dissipation assembly (10) comprises a refrigeration plate (1001), a ventilation hole (1002), a heat dissipation fan (1003), a dust screen (1004), a fixing plate (1005) and a fixing shell (1006), ventilation hole (1002) have been seted up on refrigeration board (1001) surface, and ventilation hole (1002) one side is provided with radiator fan (1003), radiator fan (1003) opposite side is provided with dust screen (1004), fixed plate (1005) are installed in the inside of fixed casing (1006), and fixed casing (1006) constitute fixed connection through the outside of fixed plate (1005) with radiator fan (1003).

2. The power adapter with the overheat protection structure according to claim 1, wherein a buckle (15) is disposed at the bottom of the top case (1), and a heat dissipation hole is formed at a position on one side of the top case (1) close to the heat dissipation component (10).

3. The power adapter with the overheat protection structure according to claim 1, wherein a high pressure tank (16) is arranged inside the protective shell (4), a supply pipe (17) is connected to the high pressure tank (16), and a nozzle assembly (18) for extinguishing fire is installed at the bottom of the supply pipe (17).

4. The power adapter with overheat protection structure according to claim 3, wherein the nozzle assembly (18) comprises a glass tube (1801), a baffle plate (1802) and a frame (1803), the baffle plate (1802) is arranged at the bottom of the glass tube (1801), and the baffle plate (1802) is vertically arranged at the bottom of the frame (1803).

5. The power adapter with the overheat protection structure according to claim 1, wherein a soft rubber pad (7) is arranged at a connection part of the power line (5) and the resistance element (13), hooks (8) are clamped at two sides of the soft rubber pad (7), and the hooks (8) are arranged in a U-shaped structure.

6. The power adapter with the overheat protection structure according to claim 1, wherein a refrigeration motor (14) is arranged on the top of the refrigeration plate (1001), and the refrigeration plate (1001) is electrically connected with the refrigeration motor (14) through a wire.

7. The power adapter with the overheat protection structure according to claim 1, wherein a circuit board (11) is connected to one side of the fixed housing (1006), a clamping plate (12) is arranged on one side of the circuit board (11), and the transformer (9) is connected with the circuit board (11) in a clamping manner.