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CN-121983736-A - Automobile emergency starting power supply with protection structure

CN121983736ACN 121983736 ACN121983736 ACN 121983736ACN-121983736-A

Abstract

The invention relates to the technical field of auto parts, in particular to an automobile emergency starting power supply with a protective structure, which comprises a power supply body, wherein a female connector is arranged on the power supply body, a male connector is inserted on the female connector, a nut is sleeved on the male connector, a limiting ring is fixedly connected to the tail part of the male connector, a limiting surface is arranged on the inner side of the head part of the nut, an inner thread is arranged on the inner side of the nut, and an outer thread matched with the inner thread is arranged on the female connector. The invention innovatively adopts the magnetic attraction-torsion spring-tooth meshing composite anti-loosening mechanism, realizes intelligent response to a vibration environment, keeps silence under low-frequency micro-vibration, avoids fatigue caused by invalid actions, automatically triggers locking under high-frequency strong-vibration, reversely enhances connection reliability by utilizing vibration energy, breaks through the limitation of the traditional passive resistance anti-loosening mode, and is particularly suitable for the special high-frequency electromagnetic vibration and transient torque impact working conditions of the electric vehicle.

Inventors

  • Qiu Kaijian

Assignees

  • 深圳市本荣新能源科技有限公司

Dates

Publication Date
20260505
Application Date
20260228

Claims (8)

  1. 1. The utility model provides an automobile emergency starting power supply with protective structure, includes power supply body (101), be provided with female joint (102) on power supply body (101), peg graft on female joint (102) have male joint (103), the cover has nut (104) on male joint (103), male joint (103) afterbody rigid coupling has spacing ring (1031), nut (104) head inboard is provided with spacing face (1041), nut (104) inboard is provided with internal thread (105), be provided with on female joint (102) with internal thread (105) complex external screw thread (106); The nut is characterized in that a first fixed tooth (107) is fixedly connected to the outer side of the nut (104), circumferentially distributed magnets (108) are fixedly connected to the female connector (102), fixed blocks (109) are fixedly connected to one sides of the female connector (102) close to the magnets, rotating teeth (110) are rotatably connected to the fixed blocks (109), tooth surfaces of the rotating teeth (110) are opposite to tooth surfaces of the first fixed teeth (107), the rotating teeth (110) are in magnetic attraction fit with adjacent magnets (108), and torsion springs (111) are fixedly connected between the rotating teeth (110) and the adjacent fixed blocks (109).
  2. 2. An emergency starting power supply for a motor vehicle having a protective structure according to claim 1, wherein the tooth surfaces of the rotary tooth (110) and the tooth surfaces of the first stationary tooth (107) are both helical tooth surfaces, and the oblique direction of the helical tooth is such that the rotary tooth (110) exerts an axial component force on the first stationary tooth (107) in the tightening direction of the nut (104) when swinging.
  3. 3. The emergency starting power supply with a protection structure for a vehicle according to claim 2, wherein the magnet (108) is a neodymium-iron-boron permanent magnet, and the magnetic attraction force of the magnet is larger than the pretightening force of the torsion spring (111) and smaller than the inertia force of the rotating teeth (110) under the high-frequency vibration working condition.
  4. 4. An emergency starting power supply for an automobile with a protective structure according to claim 3, wherein a second fixed tooth (201) is fixedly connected to the nut (104), an elastic pad (202) is fixedly connected to one side, close to the second fixed tooth (201), of the female connector (102), a third fixed tooth (203) is fixedly connected to the elastic pad (202), and the third fixed tooth (203) is meshed with the second fixed tooth (201).
  5. 5. An automotive emergency starting power supply having a protective structure according to claim 4, wherein said elastic pad (202) is made of rubber material.
  6. 6. The automobile emergency starting power supply with the protection structure according to claim 5, wherein a fixing frame (301) is fixedly connected to the power supply body (101), the fixing frame (301) is slidably connected with the female connector (102), and at least one spring (302) is fixedly connected between the fixing frame (301) and the female connector (102).
  7. 7. The automobile emergency starting power supply with the protection structure according to claim 6, wherein grooves (401) distributed circumferentially are formed in the end face of the female connector (102), poking holes (402) are formed in the grooves (401), and rotating shafts of the rotating teeth (110) penetrate through the adjacent poking holes (402).
  8. 8. An automotive emergency starting power supply having a guard structure according to claim 7, wherein said toggle hole (402) is arranged in an arc shape to match a swing path of a rotating shaft of said rotating tooth (110).

Description

Automobile emergency starting power supply with protection structure Technical Field The invention relates to the technical field of automobile accessories, in particular to an automobile emergency starting power supply with a protection structure. Background In motor home, off-road vehicles and special vehicles, an auxiliary battery (auxiliary storage battery) provides stable power for a vehicle-mounted refrigerator, an inverter, illumination, communication equipment and the like for a long time, while in pure electric vehicles and hybrid electric vehicles, a 12V low-voltage auxiliary battery is required to be equipped for starting key functions such as an electric control system, driving vehicle windows, an instrument, a CAN network and the like, although main driving energy comes from a high-voltage power battery. Whether the auxiliary battery is additionally arranged on a traditional vehicle or a low-voltage battery of a new energy automobile original factory, the electric connection port of the auxiliary battery is required to bear continuous mechanical vibration in the whole life cycle of the vehicle. In particular, under the condition of complex road conditions or high-frequency operation of a motor, composite vibration from road surface excitation, electric drive system resonance and reducer impact is extremely easy to cause loosening of a connecting terminal, so that contact resistance is increased, local overheating is caused, and electric fire can be caused when serious, thereby threatening the safety of the whole vehicle. At present, the industry generally adopts a traditional anti-loosening mode such as a nut and the like. However, fatigue failure is easy to occur under long-term high-frequency micro-amplitude vibration, the anti-loosening performance is difficult to last, the locking force is obviously reduced, and the reliability is further limited under the specific high-frequency electromagnetic vibration and transient torque impact of an electric car. Therefore, an automobile emergency starting power supply with a protection structure is needed, and the connection structure of the automobile emergency starting power supply can realize self-adaptive locking under a vibration environment and has high reliability, so that potential safety hazards such as poor contact, overheating and even ignition caused by loosening of a wiring terminal are solved. Disclosure of Invention In order to overcome the defect that the automobile emergency starting power supply has potential safety hazards due to poor contact caused by loosening of a wiring terminal, the invention provides the automobile emergency starting power supply with a protection structure. The utility model provides an automobile emergency starting power supply with protective structure, includes the power supply body, be provided with the female joint on the power supply body, peg graft on the female joint and have the male joint, the cover has the nut on the male joint, male joint afterbody rigid coupling has the spacing ring, nut head inboard is provided with the spacing face, nut inboard is provided with the internal thread, be provided with on the female joint with internal thread complex external screw thread, nut outside rigid coupling has first fixed tooth, the rigid coupling has circumferentially distributed's magnet on the female joint, the female joint is close to the equal rigid coupling of one side of each magnet has the fixed block, rotate on the fixed block and be connected with the rotation tooth, the tooth face of rotation tooth with the tooth face of first fixed tooth is relative, rotate the tooth with adjacent magnet magnetism suction cooperation, rotate tooth and adjacent the rigid coupling has the torsional spring between the fixed block. More preferably, the tooth surface of the rotating tooth and the tooth surface of the first fixed tooth are both helical tooth surfaces, and the oblique direction of the helical tooth is such that the rotating tooth applies an axial component force to the first fixed tooth in the nut tightening direction when swinging. More preferably, the magnet is a neodymium-iron-boron permanent magnet, and the magnetic attraction force of the magnet is larger than the pretightening force of the torsion spring and smaller than the inertia force born by the rotating teeth under the high-frequency vibration working condition. More preferably, the nut is fixedly connected with a second fixed tooth, one side of the female joint, which is close to the second fixed tooth, is fixedly connected with an elastic pad, a third fixed tooth is fixedly connected with the elastic pad, and the third fixed tooth is meshed with the second fixed tooth. More preferably, the elastic pad is made of rubber. More preferably, the power supply body is fixedly connected with a fixing frame, the fixing frame is in sliding connection with the female connector, and at least one spring is fixedly connected between the fixing frame