CN111417272A

CN111417272A - Power supply box for aluminum-plastic composite direct heat transfer

Info

Publication number: CN111417272A
Application number: CN202010194435.XA
Authority: CN
Inventors: 杨东平
Original assignee: Dongguan Dongzhun Electronic Technology Co ltd
Current assignee: Shenzhen dongzhun Electronic Technology Co.,Ltd.
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-07-14
Anticipated expiration: 2040-03-19
Also published as: CN111417272B

Abstract

The invention discloses an aluminum-plastic composite direct heat transfer power supply box, which comprises a box body and a box cover, wherein the box body adopts an aluminum-plastic composite structure, a L type aluminum plate is arranged in the box body, a L type aluminum plate and the bottom surface and the side surface of the box body are molded into a whole, a PCB power supply board is fixed on a L type aluminum plate, a platform horizontally extends inwards from the top of the side surface of the box body provided with a L type aluminum plate, a groove for accommodating a metal elastic sheet is arranged on the platform, a fixing hole is arranged in the groove, two ends of the metal elastic sheet are bent to be smaller than 90 degrees, a mounting hole is arranged at one end of the metal elastic sheet, a screw is inserted into the mounting hole to lock the end of the metal elastic sheet in the fixing hole in the groove, and a heating device on the PCB power supply board is tightly pressed on a side plate of the L type aluminum plate by the other end of the metal elastic sheet.

Description

Power supply box for aluminum-plastic composite direct heat transfer

Technical Field

The invention relates to the technical field of power supply boxes, in particular to a power supply box with aluminum-plastic composite direct heat transfer.

Background

The shell of the existing power box is generally of a full-plastic structure, and an aluminum radiator on a power panel and the shell are mutually independent and do not contact with each other; the heating device on the power panel is a transistor, the traditional transistor insulation installation processing mode is that an insulation rubber gasket is added at the bottom, meanwhile, the heating device body is wrapped by the insulation rubber gasket and locked by a metal elastic sheet, an insulation sleeve is added on a rigid pressing sheet, and the installation mode is too complex; meanwhile, the heat of the heating device is conducted to the aluminum radiator and then radiated to the air in the power box, the air is heated and then transferred to the shell, and the shell radiates the heat out.

Disclosure of Invention

The invention aims to overcome the technical defects and provides the power supply box for aluminum-plastic composite direct heat transfer.

The technical scheme includes that the power supply box with aluminum-plastic composite direct heat transfer comprises a box body and a box cover, wherein the box cover is detachably arranged on the upper portion of the box body through screws, the box body is of an aluminum-plastic composite structure, an L-type aluminum plate is arranged inside the box body, an L-type aluminum plate is arranged on the bottom face inside the box body and attached to one side face of the box body, an L-type aluminum plate and the bottom face and the side face of the box body are integrally formed in an injection molding mode, a PCB power supply board is fixed on the L-type aluminum plate through screws, a platform horizontally extends inwards from the top of the side face of the L-type aluminum plate, a groove used for containing a metal elastic sheet is formed in the platform, fixing holes are formed in the groove, two ends of the metal elastic sheet are bent to be smaller than 90 degrees, mounting holes are formed in one ends of the metal elastic sheet, the screws are inserted into the mounting holes to lock the ends of the metal elastic sheet in the fixing holes, meanwhile, heating devices on the PCB power supply board are tightly pressed on a vertical plate of the L-type aluminum.

As the improvement, the box body has L type aluminum plate's side surface to be equipped with the cockscomb structure heat radiation structure that height is not less than 2 millimeters, and other lateral walls of box body, the lateral wall and the top of lid also are equipped with cockscomb structure heat radiation structure.

As the improvement, the upper edge of the box body is provided with a concave groove for placing a waterproof sealing ring.

As the improvement, AC line, DC line are located the both sides of box body, and are equipped with the silica gel tail card in the joint portion with lid, box body, and the waterproof sealing washer is arranged in silica gel tail card upper portion, and lid and box body four corners are with screw locking, and lid and box body compress tightly waterproof sealing washer and silica gel tail card simultaneously.

Compared with the prior art, the invention has the advantages that the insulating installation processing mode of the heating device transistor only needs to add the insulating rubber gasket at the bottom without wrapping the transistor, the transistor is fixed by the metal elastic sheet, the screw is locked and attached on the shell plastic from the top, the metal elastic sheet can meet the safety requirements without adding the insulating sleeve, the heating device is tightly pressed on the side surface of the L type aluminum plate, the heat is directly conducted to the L type aluminum plate and the plastic shell box body, the saw-tooth-shaped heat dissipation structure outside the side surface of the power box can efficiently dissipate the heat, and the design of taking the aluminum-plastic composite shell as the power radiator can efficiently dissipate the heat and has low cost.

Drawings

Fig. 1 is a schematic structural diagram of a power supply box for direct heat transfer by aluminum-plastic compounding according to the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is an exploded view of an L aluminum plate and plastic housing.

As shown in the figure, the LED lamp comprises a box body 1, a box body 2, a box cover, 3 and L type aluminum plates, 4, a PCB power supply board, 5, a heating device, 6, a metal elastic sheet, 7, an AC line, 8, a DC line, 9, a sawtooth-shaped heat dissipation structure, 10, a waterproof sealing ring, 11, a L ED light guide column, 12, a through hole, 13, an M2 screw, 14, an M4 screw, 15, a platform, 16, a groove, 17, a fixing hole, 18, a mounting hole, 19 and a silica gel tail card.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood 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.

A power supply box with aluminum-plastic composite direct heat transfer is disclosed by combining the accompanying drawings, and comprises a box body 1 and a box cover 2, wherein the box cover 2 is detachably arranged at the upper part of the box body 1 through an M4 screw 14, the box body 1 adopts an aluminum-plastic composite structure, the outer surface of the side surface of the box body 1, which is provided with a toothed heat dissipation structure 9 with the height not lower than 2 mm, is also arranged on the outer side wall of the box body 1 and the outer side wall and the top part of the box cover 2, the toothed heat dissipation structure 9 is also arranged on the outer side wall and the top part of the box body 2, which can help heat to be diffused quickly and reduce the temperature in the power supply box, and can prevent a user from touching a heating point of the power supply box directly and avoid scalding hands, the L type aluminum plate 3 and the L type aluminum plate 3 are arranged inside the box body 1 at the bottom surface and lean against one side surface of the box body 1, the L type aluminum plate 3 and the bottom surface and the side surface of the box body 1 are molded into a whole, the PCB power supply plate 4 is fixed on a L through screws and is fixed on the L type aluminum plate 3 through screws, the silicon rubber sealing ring 2, the silicon rubber sealing ring 16, the sealing ring 16 is arranged on the box cover 2, the sealing ring 16 is arranged on the sealing ring 6, the sealing ring 2, the sealing ring 16 is arranged on the sealing ring 2, the sealing ring 16, the sealing ring 2, the sealing ring 16 is arranged on the sealing ring 2, the sealing ring 16 is arranged on the sealing ring 2, the sealing ring 6, the sealing ring 2, the sealing ring 6, the sealing ring 2, the.

When the invention is implemented, the box body 1 and the cover body 2 of the power box are in a shape of up-down compression joint, so that the AC wire 7 and the DC wire 8 are ensured to be tightly buckled and compressed between the box body 1 and the cover body 2, when the heating device 5 of the PCB power panel 4 is compressed on the L type aluminum plate 3 on the side surface, the sawtooth-shaped heat dissipation structure 9 outside the side surface of the power box can efficiently dissipate heat, the design of taking an aluminum-plastic composite shell as a power radiator can efficiently dissipate heat, and simultaneously, the cost is low.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A power supply box with aluminum-plastic composite and direct heat transfer comprises a box body and a box cover, wherein the box cover is detachably arranged on the upper portion of the box body through screws, and is characterized in that the box body is of an aluminum-plastic composite structure, a L type aluminum plate is arranged inside the box body, a L type aluminum plate is arranged on the bottom face inside the box body and attached to one side face of the box body, a L type aluminum plate and the bottom face and the side face of the box body are integrally formed in an injection molding mode, a PCB power supply board is fixed on a L type aluminum plate through screws, a platform horizontally extends inwards from the top of the side face of the box body, a groove used for containing a metal elastic sheet is formed in the platform, fixing holes are formed in the groove, two ends of the metal elastic sheet are bent to be smaller than 90 degrees, a mounting hole is formed in one end of the metal elastic sheet, the screw is inserted into the mounting hole to lock the end of the metal elastic sheet in the fixing hole, meanwhile, a heating device on the PCB power supply board is tightly pressed on a side plate of the 36.

2. The power supply box of aluminum-plastic composite direct heat transfer of claim 1, wherein the outer surface of the side of the box body with the L aluminum plate is provided with a saw-toothed heat dissipation structure with a height of not less than 2 mm, and the other outer side walls of the box body, the outer side wall and the top of the box cover are also provided with saw-toothed heat dissipation structures.

3. The power supply box for aluminum-plastic composite direct heat transfer of claim 1, wherein: the box body upper edge is provided with the concave groove and places waterproof sealing circle.

4. The power supply box for aluminum-plastic composite direct heat transfer of claim 3, wherein: the AC line and the DC line are positioned on two sides of the box body, a silica gel tail clamp is arranged at the joint part of the box cover and the box body, the waterproof sealing ring is arranged on the upper part of the silica gel tail clamp, the four corners of the box cover and the four corners of the box body are locked by screws, and the box cover and the box body simultaneously compress the waterproof sealing ring and the silica gel tail clamp.