CN219459391U - Power tube heat radiation structure - Google Patents

Abstract

The utility model discloses a power tube radiating structure which comprises a detachable connecting piece, a power tube, a pressing piece, a PCB (printed circuit board), a heat conducting sheet, a metal shell and a T-shaped insulating isolation sleeve, wherein the pressing piece is movably connected to the upper end of the power tube, the PCB is movably connected to the lower end of the power tube, the heat conducting sheet is movably connected to the lower end of the PCB, the metal shell is movably connected to the lower end of the heat conducting sheet, the metal shell is in seamless connection with the heat conducting sheet, connecting holes are formed in the power tube, the pressing piece, the PCB, the heat conducting sheet and the metal shell, the T-shaped insulating isolation sleeve penetrates through the connecting holes of the power tube, the PCB, the heat conducting sheet and the metal shell, and then is connected with all parts through the T-shaped insulating isolation sleeve after penetrating through the connecting holes of the pressing piece, the power tube is tightly pressed on the PCB, meanwhile, the power tube and the PCB are tightly attached to the metal shell, and heat conduction is realized through the heat conducting sheet between the PCB and the metal shell, so that a radiating effect is achieved.

Description

Power tube heat radiation structure

Technical Field

The utility model relates to the technical field of chargers, in particular to a power tube heat dissipation structure.

Background

The charger is a device for charging equipment needing electricity storage, in order to achieve the functional requirement, a plurality of important parts such as power tubes are arranged in the charger, the power tubes are tubes which are used as final-stage output in an amplifying circuit, when the charger works, good heat dissipation effect is required, if the heat dissipation effect is poor due to unreasonable design of a heat dissipation structure, the power tubes can not be used normally, the heat dissipation of the power tubes can be realized by fixing the power tubes on heat dissipation teeth in the existing charger, but the size of the heat dissipation structure is increased, the assembly process is increased, the cost is increased, and the power tubes are inserted into a PCB (printed circuit board) to realize heat dissipation of the power tubes.

Disclosure of Invention

The utility model aims to provide a power tube heat dissipation structure which can realize heat dissipation of a power tube on the premise of not adding heat dissipation teeth and not needing to improve a PCB.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a power tube heat radiation structure, includes detachable connection piece, power tube, preforming, PCB board, conducting strip, metal casing and T font insulating spacer, preforming swing joint is in the power tube upper end, PCB board swing joint is in the power tube lower extreme, conducting strip swing joint is in the PCB board lower extreme, metal casing swing joint is in the conducting strip lower extreme, metal casing and conducting strip jointless quality, the connecting hole is all offered to power tube, preforming, PCB board, conducting strip and metal casing inside, and T font insulating spacer runs through the connecting hole of power tube, PCB board, conducting strip and metal casing, connects each part through T font insulating spacer after detachable connection piece passes the connecting hole of preforming.

Preferably, the pressing sheet is made of a metal material, the metal pressing sheet has a certain weight, and the power tube is pressed on the PCB through the metal pressing sheet, so that the power tube is in closer and tighter contact with a metal bonding pad on the surface of the PCB.

Preferably, the detachable connecting piece is a bolt, the inner wall of the T-shaped insulating isolation sleeve is provided with threads matched with the bolt, the bolt is connected with the T-shaped insulating isolation sleeve through threads, the power tube, the pressing sheet, the PCB, the heat conducting fin and the metal shell are movably connected, and when the parts are required to be overhauled or replaced, the disassembly and assembly are convenient, and the working efficiency is higher.

Preferably, the T-shaped insulating isolation sleeve is made of plastic, so that an insulating isolation effect can be effectively achieved.

Preferably, the heat conducting fin is made of heat conducting and insulating silicone grease material, and the heat conducting fin has the main function of radiating, but is in safety consideration, and the heat conducting fin has heat conducting and insulating effects at the same time by adopting the heat conducting and insulating silicone grease material, so that the heat conducting fin is more applicable.

Preferably, the junction of the metal shell and the heat conducting strip is filled with a fluid heat conducting insulating silicone grease material, and the surfaces of the metal shell and the heat conducting strip do not belong to absolute smooth surfaces, so that the fluid heat conducting insulating silicone grease material is coated on the junction of the metal shell and the heat conducting strip for improving the heat dissipation effect, and after the metal shell is contacted with the heat conducting strip, the fluid heat conducting insulating silicone grease material fills the junction of the metal shell and the heat conducting strip in a gap mode, so that the heat dissipation effect is improved.

Preferably, the metal shell is made of metal aluminum material, and the metal aluminum is light as the shell material, so that the metal shell is convenient to transport.

Compared with the prior art, the utility model has the beneficial effects that:

1. the power tube radiating structure adopts the detachable connecting piece to movably connect the power tube, the pressing piece, the PCB, the heat conducting sheet and the metal shell, the power tube is tightly pressed on the PCB by the weight of the pressing piece and the connection of the detachable connecting piece, so that the power tube is tightly contacted with the metal bonding pad on the surface of the PCB, and meanwhile, the power tube and the PCB are tightly attached to the metal shell, and the heat conduction is realized by the heat conducting sheet between the PCB and the metal shell, so that the radiating effect is achieved, and the radiating teeth are not increased and the power tube radiating is realized on the premise of not improving the PCB;

2. the power tube radiating structure adopts the detachable connecting piece to movably connect the power tube, the pressing piece, the PCB, the heat conducting piece and the metal shell, and when the parts are required to be overhauled or replaced, the power tube radiating structure is convenient to disassemble and has higher working efficiency;

3. the power tube radiating structure is connected with the power tube, the pressing sheet, the PCB, the heat conducting sheet and the metal shell through the T-shaped insulating isolation sleeve, plays a role in connection, and can be insulated, so that the safety is higher.

Drawings

Fig. 1 is a schematic perspective view of a first embodiment of the present utility model;

in the figure: 1. a power tube; 2. tabletting; 3. a PCB board; 4. a heat conductive sheet; 5. a metal housing; 6. t-shaped insulating isolation sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1, a power tube heat dissipation structure comprises a detachable connecting piece, a power tube 1, a pressing piece 2, a PCB board 3, a heat conducting fin 4, a metal shell 5 and a T-shaped insulating isolation sleeve 6, wherein the detachable connecting piece can be a bolt, the power tube 1, the pressing piece 2, the PCB board 3, the heat conducting fin 4 and the metal shell 5 are movably connected through the bolt, the pressing piece 2 is movably connected to the upper end of the power tube 1, the pressing piece 2 is made of a metal material, the metal pressing piece has a certain weight, the power tube 1 is pressed on the PCB board 3 through the metal pressing piece, so that the contact between the power tube 1 and a metal pad on the surface of the PCB board 3 is closer and tighter, the PCB board 3 is movably connected to the lower end of the power tube 1, the heat conducting fin 4 is movably connected to the lower end of the PCB board 3, the heat conducting fin 4 is made of a heat conducting insulating silicone material, the main function of the heat dissipation fin 4 is in safety, the heat conducting insulating silicone grease material is adopted to ensure that the heat conducting sheet 4 has heat conducting and insulating effects, the metal shell 5 is movably connected at the lower end of the heat conducting sheet 4, the joint of the metal shell 5 and the heat conducting sheet 4 is filled with the fluid heat conducting insulating silicone grease material, as the surfaces of the metal shell 5 and the heat conducting sheet 4 do not belong to absolute smooth surfaces, in order to improve the heat radiating effect, the fluid heat conducting insulating silicone grease material is coated on the joint surface of the metal shell and the heat conducting sheet 4, after the metal shell 5 is contacted with the heat conducting sheet 4, the fluid heat conducting insulating silicone grease material fills the joint surface of the metal shell 5 and the heat conducting sheet 4, so that the metal shell 5 is in seamless connection with the heat conducting sheet 4, and further the heat radiating effect is improved, the power tube 1, the pressing sheet 2, the PCB 3, the heat conducting sheet 4 and the inside of the metal shell 5 are provided with connecting holes, t-shaped insulating isolation sleeve 6 runs through the connecting hole of power tube 1, PCB board 3, conducting strip 4 and metal casing 5, T-shaped insulating isolation sleeve 6 inner wall is equipped with the screw thread that matches with the bolt, each part is connected through T-shaped insulating isolation sleeve 6 after the bolt passes the connecting hole of preforming 2, bolt and T-shaped insulating isolation sleeve 6 pass through threaded connection, with power tube 1, preforming 2, PCB board 3, conducting strip 4 and metal casing 5 swing joint, when the part needs to be overhauld or change, easy dismounting work efficiency is higher, wherein, T-shaped insulating isolation sleeve 6 adopts plastics to make, can effectually play insulating isolation effect, in sum up, this heat radiation structure does not need to fix power tube 1 on the heat dissipation tooth, thereby make the simple structure of charger, the volume reduces, also need not improve PCB board 3, when realizing heat dissipation, power tube 1 and PCB board 3 pass through automatic paster technique, high production efficiency has improved the protection of power tube 1.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (7)

1. The utility model provides a power tube heat radiation structure, its characterized in that, including dismantling connecting piece, power tube (1), preforming (2), PCB board (3), conducting strip (4), metal casing (5) and T font insulating spacer (6), preforming (2) swing joint is in power tube (1) upper end, PCB board (3) swing joint is in power tube (1) lower extreme, conducting strip (4) swing joint is in PCB board (3) lower extreme, metal casing (5) swing joint is in conducting strip (4) lower extreme, metal casing (5) and conducting strip (4) seamless connection, connecting hole is all offered to power tube (1), preforming (2), PCB board (3), conducting strip (4) and metal casing (5) inside, and T font insulating spacer (6) run through connecting hole of power tube (1), PCB board (3), conducting strip (4) and metal casing (5), connect each part through T font insulating spacer (6) after dismantling the connecting piece and passing the connecting hole of preforming (2).

2. The power tube heat dissipation structure as defined in claim 1, wherein: the tabletting (2) is made of metal materials.

3. The power tube heat dissipation structure as defined in claim 1, wherein: the detachable connecting piece is a bolt, and threads matched with the bolt are arranged on the inner wall of the T-shaped insulating isolation sleeve (6).

4. A power tube heat dissipation structure as defined in claim 1 or 3, wherein: the T-shaped insulating isolation sleeve (6) is made of plastic.

5. The power tube heat dissipation structure as defined in claim 1, wherein: the heat conducting sheet (4) is made of heat conducting insulating silicone grease material.

6. A power tube heat dissipation structure as defined in claim 1 or 5, wherein: the joint of the metal shell (5) and the heat conducting sheet (4) is filled with fluid heat conducting insulating silicone grease material.

7. A power tube heat dissipation structure as defined in claim 1 or 5, wherein: the metal shell (5) is made of metal aluminum materials.