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CN-224234050-U - High-efficient heat dissipation charger

CN224234050UCN 224234050 UCN224234050 UCN 224234050UCN-224234050-U

Abstract

The utility model relates to the technical field of charging converters, in particular to a high-efficiency heat dissipation charger which comprises a shell, a power supply main board, a synchronous rectifier, a high-frequency transformer, a power switch tube and a driver chip, wherein an inner layer heat conducting sheet and an outer layer heat conducting sheet are arranged on the inner wall of the shell, the inner layer heat conducting sheet is in contact connection with the power switch tube and the driver chip through heat conducting silicone grease, the outer layer heat conducting sheet is bent towards a first side, and the bent part is in contact connection with the synchronous rectifier and the high-frequency transformer through the heat conducting silicone grease. The electronic components with small volume and large heating value are arranged on the second side surface with small interval between the power supply main board and the shell, the electronic components with large volume and large heating value are arranged at the edge of the first side surface with large interval between the power supply main board and the shell, so that the internal space of the shell can be fully utilized, the electronic components with small heating value can be more conveniently attached to and contacted with the inner layer heat conducting fin, and the heat conducting and radiating effects are improved.

Inventors

  • YAN JING

Assignees

  • 东莞市迪升高科技有限公司

Dates

Publication Date
20260512
Application Date
20250625

Claims (5)

  1. 1. The efficient heat dissipation charger comprises a shell (1), a power main board (2) arranged in the shell (1), a synchronous rectifier (21) and a high-frequency transformer (22) arranged on the first side face of the power main board (2), and a power switch tube (23) and a driver chip (24) arranged on the edge of the second side face of the power main board (2), and is characterized in that an inner layer heat conducting sheet (3) and an outer layer heat conducting sheet (4) which is in fit connection with the inner layer heat conducting sheet (3) are arranged on the inner wall of the shell (1), the inner layer heat conducting sheet (3) is in contact connection with the power switch tube (23) and the driver chip (24) through heat conducting silicone grease, the outer layer heat conducting sheet (4) is bent towards the first side face, and the bending part (5) is in contact connection with the synchronous rectifier (21) and the high-frequency transformer (22) through heat conducting silicone grease.
  2. 2. The efficient heat dissipation charger as recited in claim 1, further comprising a U-shaped clamping piece (6), wherein at least one edge of the inner layer heat conducting piece (3) and at least one edge of the outer layer heat conducting piece (4) are aligned with each other, and the two aligned edges are embedded in a space of the U-shaped clamping piece (6).
  3. 3. The efficient heat dissipation charger as defined in claim 1 or 2, wherein two opposite inner walls of the housing (1) are provided with an inner layer heat conducting fin (3) and an outer layer heat conducting fin (4).
  4. 4. The efficient heat dissipation charger as defined in claim 3, wherein a heat conduction silicone grease layer is arranged between the inner layer heat conduction sheet (3) and the outer layer heat conduction sheet (4).
  5. 5. The efficient heat dissipation charger as defined in claim 1, wherein the housing (1) is made of a metal heat conducting material, and a heat conducting silicone grease layer is arranged between the housing (1) and the outer layer heat conducting sheet (4).

Description

High-efficient heat dissipation charger Technical Field The utility model relates to the technical field of charging converters, in particular to a high-efficiency heat dissipation charger. Background A charger is a device that supplements electrical energy to electronic devices. The core working principle of the device is that a high-frequency switching technology is applied, alternating current with fixed parameters is converted into direct current required by equipment through a power electronic semiconductor device, and a self-adaptive regulation charging strategy is adopted. Such devices are commonly used in common electronic products such as cell phones, notebook computers, tablet computers, and the like. In the current industry, many manufacturers tend to procure PCBA (printed circuit board assembly, i.e., integrated module containing chips, circuit designs, and kits) that third party chip manufacturers have developed to complete. Such PCBA solutions, when developed, emphasize the compact design, economy and lightweight characteristics that are easily perceived by consumers at the time of purchase, due to the comprehensive trade-offs of quick-fill efficiency, manufacturing cost, equipment volume, and portability (weight impact). However, such strategies tend to temporarily ignore the heat dissipation challenges caused by high power fast charging. Particularly, when the battery charger is used for rapidly charging equipment such as a tablet personal computer, a notebook computer and the like, the temperature rise is remarkable in the working process of the battery charger due to high power output, and the overheat phenomenon can be caused, so that the potential influence on the use safety is formed. Disclosure of utility model The utility model aims to provide a high-efficiency heat dissipation charger with obviously improved heat dissipation effect. In order to solve the technical problems, the high-efficiency heat dissipation charger comprises a shell, a power main board arranged in the shell, a synchronous rectifier and a high-frequency transformer arranged on the first side face of the power main board, and a power switch tube and a driver chip arranged on the edge of the second side face of the power main board, wherein an inner layer heat conducting sheet and an outer layer heat conducting sheet which are in fit connection with the inner layer heat conducting sheet are arranged on the inner wall of the shell, the inner layer heat conducting sheet is in contact connection with the power switch tube and the driver chip through heat conducting silicone grease, the outer layer heat conducting sheet is bent towards the first side face, and the bent part is in contact connection with the synchronous rectifier and the high-frequency transformer through heat conducting silicone grease. Preferably, the heat conducting strip further comprises a U-shaped clamping piece, at least one edge of the inner layer heat conducting piece and at least one edge of the outer layer heat conducting piece are mutually aligned, and the two mutually aligned edges are embedded into the interval of the U-shaped clamping piece. Preferably, the two opposite inner walls of the shell are provided with an inner layer heat conducting fin and an outer layer heat conducting fin. Preferably, a heat-conducting silicone grease layer is arranged between the inner layer heat-conducting sheet and the outer layer heat-conducting sheet. Preferably, the shell is made of metal heat conducting materials, and a heat conducting silicone grease layer is arranged between the shell and the outer layer heat conducting sheet. The utility model has the beneficial effects that the electronic components with small volume and large heating value are arranged on the second side surface with smaller interval between the power supply main board and the shell in the structural design process of the charger, and the electronic components with large volume and large heating value are arranged at the edge of the first side surface with larger interval between the power supply main board and the shell, so that the inner space of the shell can be fully utilized, and the heated electronic components with small volume and the inner layer heat conducting sheet can be more conveniently attached and contacted, and the heat conducting and radiating effects are improved. Drawings Fig. 1 is a schematic perspective view of a high-efficiency heat dissipation charger according to the present utility model. Fig. 2 is a schematic perspective view of a housing and a power motherboard of the high-efficiency heat dissipation charger according to the present utility model. Fig. 3 is a schematic perspective view of a hidden housing of the high-efficiency heat dissipation charger according to the present utility model. Fig. 4 is an exploded perspective view of the hidden housing of the high-efficiency heat dissipation charger according to the present utility model. Fig. 5 is an expl