CN219108050U

CN219108050U - Power adapter heat radiation structure

Info

Publication number: CN219108050U
Application number: CN202223088554.0U
Authority: CN
Inventors: 王强生; 谭俊
Original assignee: W&t Electronics Co ltd
Current assignee: W&t Electronics Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-05-30
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a power adapter heat radiation structure, which comprises an adapter shell, wherein heat radiation openings are formed in two sides of the adapter shell, dust-proof structures are arranged on the inner wall of the adapter shell and positioned at the heat radiation openings, the dust-proof structures cover the surfaces of the heat radiation openings, and the dust-proof structures comprise stepping motors; according to the heat radiation structure of the power adapter, when the stepping motor is not electrified, the heat radiation opening is covered by the baffle plate, so that dust and foreign matters can be reduced, when the stepping motor is electrified, the baffle plate is moved to one side of the heat radiation opening, heat radiation inside the adapter shell is not affected, the two sliding grooves are stirred through the nut seat, so that the heat radiation plate can deflect, when the baffle plate is opened, the heat radiation plate is unfolded, when the baffle plate is closed, heat inside the adapter shell is absorbed by the heat radiation plate, and heat accumulation in the middle of the adapter is reduced.

Description

Power adapter heat radiation structure

Technical Field

The utility model relates to the field of power adapters, in particular to a heat dissipation structure of a power adapter.

Background

The power adapter is also called an external power supply, is power supply voltage conversion equipment of small portable electronic equipment and electronic appliances, is converted from alternating current input into direct current output, is commonly used on small electronic products such as mobile phones, liquid crystal displays, notebook computers and the like, and when the notebook power adapter is charged, the heating temperature is very high, and the adapter and the computers are likely to be damaged due to double superposition of generated heat while the notebook is charged and a large-sized game is played, so that a heat dissipation structure is often configured in the power adapter.

The existing power adapter heat radiation structure has certain defects, firstly, the power adapter is internally provided with radiating fins and ventilation openings for radiating heat, but because the radiating fins are relatively close to internal electronic elements, when the ventilation condition of the interior of the adapter is relatively poor, the heat absorbed by the radiating fins is easy to damage surrounding electronic elements, and the ventilation openings of the adapter easily cause dust to enter the interior of the adapter shell, so that the power adapter accumulates more dust.

Disclosure of Invention

The utility model mainly aims to provide a power adapter heat dissipation structure which can effectively solve the technical problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a power adapter heat radiation structure, includes the adapter shell, the thermovent has all been seted up to the both sides of adapter shell, the inner wall of adapter shell just is located thermovent department and all is provided with dustproof construction, dustproof construction covers the surface at thermovent;

dustproof construction includes step motor, step motor sets up in one side of thermovent, and step motor passes through the inner wall phase-locking of screw and adapter shell, the leading truck has been erect to the inner wall of adapter shell and the top and the bottom that are located the thermovent, the threaded rod has been put up between leading truck and step motor, and the one end of threaded rod is connected with step motor's output, and is provided with the nut seat in the middle of the threaded rod, between the leading truck and with thermovent alignment department be provided with the baffle, and the edge and the nut seat butt fusion of baffle, and the nut seat is connected with the threaded rod through the screw thread.

In a preferred embodiment of the present utility model, the guide frame is H-shaped, and the top and bottom ends of the guide frame are welded to the inside of the adapter housing.

As a preferable technical scheme of the utility model, the top end and the bottom end of the baffle are respectively connected with the top end and the bottom end of the guide frame in a sliding manner, and the intersection of the threaded rod and the nut seat is rotationally connected.

According to the technical scheme, a heat conducting structure is arranged between the guide frames, the heat conducting structure comprises two rows of radiating fins, the two rows of radiating fins are arranged between the guide frames, connecting pins are arranged at the top ends and the bottom ends of the radiating fins and are rotationally connected with the guide frames, connecting rods are arranged between each row of radiating fins and are connected with the edges of the radiating fins through connecting ropes, stirring pieces are arranged in the middle of the connecting rods and at one end, close to the radiating fins, of the connecting rods, sliding grooves are formed in the two stirring pieces, and nuts are screwed on the connecting rods and located on two sides of the two stirring pieces.

As a preferable technical scheme of the utility model, a long groove matched with the sliding groove is formed in the middle of the guide frame, and the connecting rod is connected with the long groove and the sliding groove in a sliding way.

As a preferable technical scheme of the utility model, the length of the threaded rod is smaller than the distance between the two toggle plates, and the difference between the length of the threaded rod and the distance between the two toggle plates is equal to the deflection distance of the radiating plate.

Compared with the prior art, the utility model has the following beneficial effects: the dustproof structure is arranged in the utility model, when the stepping motor is not electrified, the heat dissipation opening is covered by the baffle plate, so that the entry of dust and foreign matters can be reduced, and when the stepping motor is electrified, the baffle plate is moved to one side of the heat dissipation opening, so that the heat dissipation of the inside of the adapter shell is not influenced;

the heat conducting structure is arranged, the two sliding grooves are stirred through the nut seat, so that the radiating fins can deflect, the radiating fins are unfolded along with the baffle plate when the baffle plate is opened, the radiating fins are closed along with the baffle plate when the baffle plate is closed, heat in the adapter shell is absorbed by the radiating fins when the baffle plate is closed, and heat accumulation in the middle of the adapter is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a heat dissipating structure of a power adapter according to the present utility model;

FIG. 2 is a schematic diagram illustrating an internal heat dissipating structure of a power adapter according to the present utility model;

FIG. 3 is a schematic view of a dustproof structure of a heat dissipating structure of a power adapter according to the present utility model;

fig. 4 is a schematic diagram of a heat conducting structure of a heat dissipating structure of a power adapter according to the present utility model.

In the figure: 1. an adapter housing; 2. a heat radiation port; 3. a dust-proof structure; 4. a thermally conductive structure; 301. a stepping motor; 302. a threaded rod; 303. a guide frame; 304. a baffle; 305. a nut seat; 401. a heat sink; 402. a connecting pin; 403. a connecting rod; 404. a driving plate; 405. a sliding groove.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

As shown in fig. 1-4, a power adapter heat dissipation structure comprises an adapter housing 1, wherein heat dissipation openings 2 are formed in two sides of the adapter housing 1, a dustproof structure 3 is arranged on the inner wall of the adapter housing 1 and positioned at the heat dissipation openings 2, and the dustproof structure 3 covers the surface of the heat dissipation openings 2;

the dustproof structure 3 comprises a stepping motor 301, the stepping motor 301 is arranged on one side of the heat dissipation opening 2, the stepping motor 301 is fixed with the inner wall of the adapter housing 1 through screws, a guide frame 303 is arranged on the inner wall of the adapter housing 1 and positioned at the top end and the bottom end of the heat dissipation opening 2, a threaded rod 302 is arranged between the guide frame 303 and the stepping motor 301, one end of the threaded rod 302 is connected with the output end of the stepping motor 301, a nut seat 305 is arranged in the middle of the threaded rod 302, a baffle 304 is arranged between the guide frames 303 and at the position aligned with the heat dissipation opening 2, the edge of the baffle 304 is welded with the nut seat 305, and the nut seat 305 is connected with the threaded rod 302 through threads.

In this embodiment, the guide 303 is H-shaped, and the top and bottom ends of the guide 303 are welded to the inside of the adapter housing 1, and the baffle 304 is restricted by the guide 303, so that the baffle 304 is prevented from deflecting.

In this embodiment, the top end and the bottom end of the baffle 304 are slidably connected with the top end and the bottom end of the guide frame 303 respectively, and the intersection of the threaded rod 302 and the nut seat 305 is rotationally connected, so that dust and foreign matters can be reduced by covering the heat dissipation opening 2 through the baffle 304 when the stepper motor 301 is not electrified, and the baffle 304 is moved to one side of the heat dissipation opening 2 when the stepper motor 301 is electrified, so that the heat dissipation inside the adapter housing 1 is not affected.

In this embodiment, a heat conducting structure 4 is disposed between the guide frames 303, and the heat conducting structure 4 includes two rows of cooling fins 401, and the two rows of cooling fins 401 are disposed between the guide frames 303, the top and bottom ends of the cooling fins 401 are all provided with connecting pins 402, and the connecting pins 402 are rotationally connected with the guide frames 303, connecting rods 403 are all disposed between each row of cooling fins 401, and the connecting rods 403 are connected with edges of the cooling fins 401 through connecting ropes, a stirring piece 404 is disposed between the middle of the connecting rods 403 and one end of the connecting rods 403, which is close to the cooling fins 401, and sliding grooves 405 are formed in the two stirring pieces 404, nuts are screwed on the connecting rods 403 and on two sides of the two stirring pieces 404, and the two sliding grooves 405 are stirred through nut seats 305, so that the cooling fins 401 can deflect, the cooling fins 401 are unfolded when the baffle 304 is opened, the cooling fins 401 are also closed when the baffle 304 is closed, heat in the adapter housing 1 is absorbed by the cooling fins 401, and heat is reduced to gather in the middle of the adapter.

In this embodiment, a long groove matching with the sliding groove 405 is formed in the middle of the guide frame 303, and the connecting rod 403 is slidably connected with the long groove and the sliding groove 405, so that the heat sink 401 can swing when the connecting rod 403 slides in the long groove and the sliding groove 405.

In this embodiment, the length of the threaded rod 302 is smaller than the distance between the two toggle plates 404, and the difference between the length of the threaded rod 302 and the distance between the two toggle plates 404 is equal to the deflection distance of the heat sink 401, and the opening and closing amplitude of the heat sink 401 can be controlled by the distance between the two toggle plates 404.

It should be noted that, when the power adapter is used, the plugs at two ends of the power adapter are connected with a circuit or a device, the power adapter can work after being electrified, the stepping motor 301 is started to rotate to drive the threaded rod 302 and the nut seat 305 to drive, so that the baffle 304 moves along the guide frame 303, after the baffle 304 moves to one side of the heat dissipation port 2, heat dissipation can be performed inside the adapter, when the nut seat 305 moves from the middle of the threaded rod 302 to the position close to the stepping motor 301, the nut seat 305 contacts with the stirring piece 404 at the end of the threaded rod 302, since the nuts are arranged at two sides of the stirring piece 404, and the length of the threaded rod 302 is smaller than the distance between the two stirring pieces 404, the nut seat 305 can push the stirring piece 404, so that the two connecting rods 403 and the stirring piece 404 in the middle can be driven to move, the connecting rods 403 move and simultaneously enable the cooling fins 401 to be pulled and rotate around the respective connecting pins 402, so that the two rows of cooling fins 401 are aligned towards the middle, meanwhile, the two connecting rods 403 slide towards the middle along the inner part of the sliding groove 405, so that the two groups of cooling fins 401 are arranged in parallel, as the cooling fins 401 are made of copper and aluminum alloy, heat is absorbed by the cooling fins 401, so that the heat is more conveniently dissipated from the cooling ports 2, when an adapter is not needed, the stepping motor 301 is reversely rotated, the stepping motor 301 drives the stirring piece 404 to cover the cooling ports 2, dust or foreign matters are prevented from falling into the cooling ports 2, when the nut seat 305 moves towards the middle, the stirring piece 404 which is moved to the middle in the middle is firstly contacted with the nut seat 305, so that the nut seat 305 pushes the stirring piece 404 in the middle and is contacted with the middle of the guide frame 303, the heat sinks 401 which are spread out at this time rotate around the respective connecting pins 402, and the heat inside the adapter can be absorbed by the heat sinks 401 which are staggered with each other, so that heat accumulation in the middle position of the adapter housing 1 is avoided, and heat dissipation of the power adapter is also facilitated.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A power adapter heat radiation structure, its characterized in that: the adapter comprises an adapter shell (1), wherein radiating ports (2) are formed in two sides of the adapter shell (1), dustproof structures (3) are arranged on the inner wall of the adapter shell (1) and located at the radiating ports (2), and the dustproof structures (3) cover the surfaces of the radiating ports (2);

dustproof construction (3) are including step motor (301), step motor (301) set up in one side of thermovent (2), and step motor (301) are fixed with the inner wall of adapter shell (1) through the screw, guide frame (303) have been erect on the inner wall of adapter shell (1) and the top and the bottom that are located thermovent (2), erect between guide frame (303) and step motor (301) threaded rod (302), and the one end of threaded rod (302) is connected with the output of step motor (301), and the centre of threaded rod (302) is provided with nut seat (305), between guide frame (303) and with thermovent (2) alignment department be provided with baffle (304), and the edge and the nut seat (305) of baffle (304) fuse mutually, and nut seat (305) are connected with threaded rod (302) through the screw thread.

2. A power adapter heat dissipation structure as defined in claim 1, wherein: the guide frame (303) is H-shaped, and the top end and the bottom end of the guide frame (303) are welded with the inside of the adapter housing (1).

3. A power adapter heat dissipation structure as defined in claim 2, wherein: the top and the bottom of baffle (304) respectively with the top and the bottom sliding connection of leading truck (303), and threaded rod (302) and nut seat (305) intersection department rotation connection.

4. A power adapter heat dissipation structure as defined in claim 3, wherein: be provided with heat conduction structure (4) between leading truck (303), and heat conduction structure (4) are including two rows of fin (401), and two rows of fin (401) set up between leading truck (303), the top and the bottom of fin (401) all are provided with connecting pin (402), and connecting pin (402) are connected with leading truck (303) rotation, all are provided with connecting rod (403) between every row of fin (401), and connecting rod (403) are connected with the edge of fin (401) through the connecting rope, the centre of connecting rod (403) all is provided with plectrum (404) with the one end that is close to fin (401) on connecting rod (403), and sliding tray (405) have all been seted up to the inside of two plectrums (404), and just are located the both sides of two plectrums (404) on connecting rod (403) and revolve there is the nut.

5. The power adapter heat dissipation structure as defined in claim 4, wherein: an elongated slot matched with the sliding slot (405) is formed in the middle of the guide frame (303), and the connecting rod (403) is connected with the elongated slot and the sliding slot (405) in a sliding mode.

6. The power adapter heat dissipation structure as defined in claim 5, wherein: the length of the threaded rod (302) is smaller than the distance between the two stirring sheets (404), and the difference between the length of the threaded rod (302) and the distance between the two stirring sheets (404) is equal to the deflection distance of the radiating sheet (401).