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CN-121983804-A - High-power rifle that charges with forced air cooling heat radiation structure

CN121983804ACN 121983804 ACN121983804 ACN 121983804ACN-121983804-A

Abstract

The invention relates to the field of charging guns, in particular to a high-power charging gun with an air-cooling heat dissipation structure, which comprises a gun shell and a gun head and is characterized in that: the gun head is arranged on one side of the gun shell, a cable is arranged on one side of the gun shell, and the cable is connected with the charging pile. The invention effectively solves the problems of high temperature, low charging efficiency and high power cost of the existing charging gun contact pin, realizes high-efficiency conduction of the contact pin heat through the pouring sealant, the ceramic sleeve and the radiating fin sleeve, forms natural air cooling circulation by depending on the radiating air hole of the gun shell, obviously reduces the working temperature of the contact pin, can bear larger current with the conventional cable with the same specification, reduces the cost and improves the efficiency, and the pure physical air cooling has no liquid cooling aging risk and is convenient to maintain. Meanwhile, through double sealing and multistage filtering structure, the heat dissipation channel is prevented from being blocked, the ceramic sleeve radically avoids the risks of electric leakage and poor insulation, the reliability of equipment is greatly improved, the outdoor complex environment is adapted, national standard requirements are met, and the application range is wide.

Inventors

  • FENG JUNJUN
  • LIU BIYAN

Assignees

  • 广东蔚联科技有限公司

Dates

Publication Date
20260505
Application Date
20260327

Claims (10)

  1. 1. The high-power charging gun with the air-cooling heat dissipation structure comprises a gun shell (001) and a gun head (101), and is characterized in that the gun head (101) is arranged on one side of the gun shell (001), a cable (102) is arranged on one side of the gun shell (001), and the cable (102) is connected with a charging pile; The heat dissipation assembly (002) arranged in the gun head (101) and the gun shell (001) comprises a pin (201), wherein the inside of the pin (201) is fixedly connected with a terminal of the cable (102), the pin (201) is positioned in the gun head (101) and the gun shell (001), the pin (201) is sleeved with a ceramic sleeve (205), pouring sealant is filled between the pin (201) and the ceramic sleeve (205), and the ceramic sleeve (205) is sleeved with a heat dissipation fin sleeve (204); The protective component (003) arranged on the outer side of the gun shell (001) comprises radiating air holes (301), the radiating air holes (301) are symmetrically formed above and below the inner wall of the gun shell (001), and each group of radiating air holes (301) are located on the side face and below the radiating fin sleeve (204).
  2. 2. The high-power charging gun with the air-cooling heat dissipation structure as set forth in claim 1, wherein the contact pin (201) is fixedly sleeved with a contact pin fixing piece (202), and the contact pin fixing piece (202) is fixedly arranged in the gun head (101).
  3. 3. The high-power charging gun with the air-cooled heat dissipation structure as set forth in claim 2, wherein the pin (201) is sleeved with a heat dissipation plate upper pressure plate (203), and the heat dissipation plate upper pressure plate (203) is in fit and clamping connection with the heat dissipation plate sleeve (204).
  4. 4. A high-power charging gun with an air-cooled heat dissipation structure as set forth in claim 3, wherein an upper waterproof ring (206) is connected between the heat dissipation plate upper pressing plate (203) and the heat dissipation plate sleeve (204) in a fitting manner, a gap between the upper waterproof ring (206) and the ceramic sleeve (205) and the heat dissipation plate sleeve (204) is sealed in a fitting manner, and the upper waterproof ring (206) is sleeved with the contact pin (201).
  5. 5. The high-power charging gun with the air-cooled heat dissipation structure as set forth in claim 4, wherein a lower heat dissipation plate (208) is clamped on one side, far away from the upper heat dissipation plate (203), of the heat dissipation plate sleeve (204), and the contact pin (201) is connected with the lower heat dissipation plate (208) in a penetrating manner.
  6. 6. The high-power charging gun with the air-cooled heat dissipation structure as set forth in claim 5, wherein a lower waterproof ring (207) is connected between the heat dissipation plate lower pressing plate (208) and the heat dissipation plate sleeve (204) in a fitting manner, a gap between the lower waterproof ring (207) and the ceramic sleeve (205) and the heat dissipation plate sleeve (204) is sealed in a fitting manner, and the lower waterproof ring (207) is sleeved with the contact pin (201).
  7. 7. The high-power charging gun with the air-cooling heat dissipation structure of claim 1, wherein a plurality of groups of filter frames (302) are attached to the outer side of the gun shell (001), a plurality of groups of inclined through grooves (303) are sequentially formed in one side of each filter frame (302), and the inclined direction of each inclined through groove (303) faces to the lower side of the gun shell (001).
  8. 8. The high-power charging gun with the air-cooling heat dissipation structure as set forth in claim 7, wherein a plurality of groups of filter pore plates (304) are sequentially arranged in the filter frame (302), and the filter pore plates (304) of each group are staggered with the inclined through grooves (303) of each group.
  9. 9. The high-power charging gun with the air-cooling heat dissipation structure as set forth in claim 8, wherein a plurality of groups of through holes (305) are distributed at the bottom of the filter frame (302) in an array, and each group of the filter frame (302) covers the corresponding heat dissipation air holes (301).
  10. 10. The high-power charging gun with the air-cooling heat dissipation structure of claim 9, wherein one side of each group of filter frames (302) is sequentially connected with a rubber butt-joint frame (306) in a penetrating manner, the rubber butt-joint frames (306) are inserted into corresponding heat dissipation air holes (301), sealing grooves (308) are formed in the inner walls of each group of heat dissipation air holes (301), sealing rings (307) are fixedly sleeved on each group of rubber butt-joint frames (306), and the sealing rings (307) are attached to the corresponding sealing grooves (308).

Description

High-power rifle that charges with forced air cooling heat radiation structure Technical Field The invention relates to the field of charging guns, in particular to a high-power charging gun with an air cooling heat dissipation structure. Background The new energy automobile charging gun is a special connecting device for connecting an electric automobile with a power supply and supplementing energy for a power battery, and is responsible for safely conveying electric energy to the battery in the automobile by connecting one end with a power grid and inserting one end into the automobile. In the patent application of application publication No. CN212708988U, application publication No. 2021-03-16, entitled "Motor Lock and charging gun for charging gun" the invention discloses a Motor Lock and charging gun for charging gun, comprising a housing, a micro-switch with its input end connected with a circuit unit in the charging gun, a motor with its input end connected with the output end of the micro-switch, a rotating shaft fixedly connected with the output shaft of the motor, the shell is provided with a locking groove, the rotating shaft is provided with a groove, the motor lock is provided with two working states, when the motor lock is in a first working state, the micro switch is in an open state, the groove corresponds to the locking groove in position, when the motor lock is in a second working state, the micro switch is in a closed state, the positions of the groove and the locking groove are staggered, and the locking groove is blocked by the rotating shaft. This a motor lock and rifle that charges for charging rifle can make the rifle that charges be connected on the car interface that charges steadily in the charging process, prevents effectively that the rifle that charges from droing and causing from the car interface that charges in the charging process or car battery damage and other potential safety hazards. In the existing charging gun including the above patent or the prior art, since the pin is too high in temperature during operation, firstly, the charging current is limited, thereby reducing the charging efficiency. If the charging current is to be increased, the pin size and the cable specification need to be increased, so that the cost is increased. Therefore, it is necessary to invent a high-power charging gun with an air-cooled heat dissipation structure to solve the above problems. Disclosure of Invention The invention aims to provide a high-power charging gun with an air cooling heat dissipation structure, which solves the problems of high temperature, low charging efficiency, high power cost and insufficient insulation and protection performance of the existing charging gun by adopting an insulation heat conduction air cooling structure and a matched protection sealing design. In order to achieve the aim, the invention provides the technical scheme that the high-power charging gun with the air-cooling heat dissipation structure comprises a gun shell and a gun head, and is characterized in that the gun head is arranged on one side of the gun shell, a cable is arranged on one side of the gun shell, and the cable is connected with a charging pile; The heat dissipation assembly arranged in the gun head and the gun shell comprises a contact pin, the inside of the contact pin is fixedly connected with the cable terminal, the contact pin is positioned in the gun head and the gun shell, a ceramic sleeve is sleeved on the contact pin, pouring sealant is filled between the contact pin and the ceramic sleeve, and a heat dissipation fin sleeve is sleeved on the ceramic sleeve; the protection component arranged on the outer side of the gun shell comprises radiating air holes which are symmetrically arranged above and below the inner wall of the gun shell, and each group of radiating air holes are positioned on the side face and below the radiating fin sleeve. As a preferable scheme of the invention, the contact pin is sleeved and fixed with a contact pin fixing piece, and the contact pin fixing piece is fixedly arranged in the gun head. As a preferable scheme of the invention, the pin is sleeved with the upper cooling fin pressing plate, and the upper cooling fin pressing plate is bonded and clamped with the cooling fin sleeve. As a preferable scheme of the invention, an upper waterproof ring is connected between the upper pressing plate of the radiating fin and the radiating fin sleeve in a fitting way, a gap between the upper waterproof ring and the ceramic sleeve as well as a gap between the upper waterproof ring and the radiating fin sleeve are sealed in a fitting way, and the upper waterproof ring is sleeved with the contact pin. As a preferable scheme of the invention, one side of the radiating fin sleeve, which is far away from the radiating fin upper pressing plate, is bonded and clamped with the radiating fin lower pressing plate, and the contact pin is connected with the radiating fin