Electric supporting rod

Abstract

The utility model relates to the field of automobile parts, in particular to an electric supporting rod. An electric supporting rod comprises a plug and a lower ball socket assembly, a ball socket and the lower ball socket assembly are connected through a buckle, the middle of the ball socket is hollowed out, a PCBA board is arranged in the middle of the ball socket, a wire passing hole is formed in the middle of the lower ball socket assembly, a wire harness penetrates through the wire passing hole and comprises a power line a, a power line b and a signal line, the power line a is provided with a terminal, the terminal is inserted into the ball socket, and the power line b is inserted into the signal line. The signal line and the power line b are welded on the PCBA board, one end of the wire harness is connected with the PCBA board, the other end of the wire harness is connected with the plug, a pipe fitting of a left sheath is arranged outside a front opening of the wire passing hole, a rubber plug is arranged between an opening of the pipe fitting and the wire harness, glue filling processing is carried out from the pipe fitting to the rear portion of the wire passing hole, and the signal line is a Hall line. The beneficial effects of the utility model are that the components are simplified, the sealing effect is good through glue pouring, the waterproof grade reaches IPX7, the purpose is achieved through Hall signals, and the device is more convenient and intelligent.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to an electric strut. Background Technology

[0002] With the rapid development of automotive technology, more and more automotive technologies are moving towards electrification and intelligence. Against this backdrop, the tailgate of cars has been upgraded from the original manual opening and closing to an electric opening and closing system, which greatly improves the customer's car experience. However, the electric tailgate system on the market is currently complex in design and has many components. Summary of the Invention

[0003] To solve the aforementioned technical problems related to complex structures, this utility model provides an electric strut.

[0004] The technical solution of this utility model is as follows:

[0005] An electric strut includes a plug and a lower ball socket assembly. The ball socket and the lower ball socket assembly are connected by a snap-fit. The ball socket is hollow in the middle and has a PCBA board in the middle. The lower ball socket assembly has a wire passage hole in the middle, through which a wire harness passes. The wire harness includes a power line a, a power line b, and a signal line. The power line a has a terminal, which is inserted into the ball socket. The signal line and the power line b are soldered to the PCBA board. One end of the wire harness is connected to the PCBA board, and the other end of the wire harness is connected to the plug. A tube with a left sheath is provided outside the front opening of the wire passage hole. A glue plug is provided between the tube opening and the wire harness. Glue is applied from the tube to the rear of the wire passage hole. The signal line is a Hall effect wire.

[0006] The ball socket is provided with a socket and a terminal block on both sides. The middle and bottom of the ball socket are recessed inward. The inner wall of the top and bottom of the ball socket is provided with a baffle. The baffle is provided with a locking post. The inner wall of the middle and bottom of the ball socket is provided with a buckle a. The inner wall of the socket is provided with a buckle b.

[0007] The side wall of the card post is provided with a protruding strip, the opening of the terminal block matches the shape of the terminal, and the two sides of the terminal block are provided with blocks.

[0008] The lower ball socket assembly has inserts on both sides of the front part, inserts with holes in the middle, and the outer wall of the insert head has a slope. The middle part has a wall body in the shape of a racetrack, and the middle part of the wall body has a wire hole. The wire hole is a slanted hole that is inclined from the middle to the outside.

[0009] The PCBA board has round holes, an arc-shaped bottom, sloping sides on the top, and signal line holes in the middle.

[0010] The wire harness on one side of the plug is covered with heat shrink tubing, and a protective cloth is wrapped around the heat shrink tubing. The other side of the heat shrink tubing is corrugated tubing.

[0011] The technical solution of this utility model has a novel structure, ingenious and simple design, and simplified components. It also has a good sealing effect through potting and a waterproof rating of IPX7. It achieves its purpose through Hall signals, making it more convenient and intelligent. Attached Figure Description

[0012] Figure 1 , 2 This is a schematic diagram of the structure of this utility model;

[0013] Figure 3 yes Figure 2 Schematic diagram of the structure in section AA;

[0014] Figure 4 This is a schematic diagram of the structure of the ball socket of this utility model;

[0015] Figure 5 , 6 This is a schematic diagram of the structure of the lower ball socket assembly of this utility model;

[0016] Figure 7 This is a schematic diagram of the PCBA board of this utility model;

[0017] Figure 8 This is a schematic diagram of the structure of the left sheath of this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0019] like Figure 1 , 2 The electric struts shown in 3, 4, 5, 6, 7, and 8 include a plug 1 and a lower ball socket assembly 5. The ball socket 2 and the lower ball socket assembly 5 are connected by a snap-fit. The ball socket 2 is hollow in the middle and has a PCBA board 6 in the middle. The lower ball socket assembly 5 has a wire passage hole 8 in the middle. The wire harness passes through the wire passage hole 8. The wire harness includes a power line a, a power line b, and a signal line. The power line a has a terminal, which is inserted into the ball socket 2. The signal line and the power line b are soldered to the PCBA board 6. One end of the wire harness is connected to the PCBA board 6, and the other end of the wire harness is connected to the plug 1. A tube with a left sheath 4 is provided outside the front opening of the wire passage hole 8. A glue plug 9 is provided between the tube opening and the wire harness. Glue is applied from the tube to the rear of the wire passage hole 8. The signal line is a Hall effect wire.

[0020] The ball socket 2 is provided with a socket 14 and a terminal block 11 on both sides. The middle and bottom of the ball socket 2 are recessed inward. The top inner wall and bottom inner wall of the ball socket 2 are provided with a baffle 13. The baffle 13 is provided with a locking post. The middle inner wall and bottom inner wall of the ball socket 2 are provided with a buckle a17. The inner wall of the socket 14 is provided with a buckle b15.

[0021] The side wall of the card post 12 is provided with a protruding strip, the opening of the terminal seat 11 matches the shape of the terminal, and the two sides of the terminal seat 11 are provided with a stop block 19.

[0022] The lower ball socket assembly 5 has inserts 16 on both sides of the front part, inserts 16 have insertion holes in the middle, inserts 16 have a bevel on the outer wall of the head, and a wall 10 in the middle. The wall 10 is racetrack shaped and has a wire hole 8 in the middle. The wire hole 8 is a beveled hole that is inclined from the middle to the outside.

[0023] The PCBA board 6 has round holes, an arc-shaped lower part, sloping sides on the upper part, and signal line holes in the middle.

[0024] The wire harness on one side of the plug 1 is covered with heat shrink tubing 3, and the heat shrink tubing 3 is wrapped with protective cloth. The other side of the heat shrink tubing 3 is a corrugated tube.

[0025] During use, the fitting opening is inverted and placed over the wire hole 8 to prevent it from falling off. The fitting opening is located in the middle of the wall 10, and the glue filling height will not exceed the end face of the ball socket. The plug 1 also has power and signal lines. The pull-out force requirements for the signal line and connector are: Level 1 lock ≥ 40N, Level 2 lock ≥ 70N. The pull-out force requirements for the power line and connector are: Level 1 lock ≥ 40N, Level 2 lock ≥ 100N. The signal lines from left to right are GND, HALL B, HALL A, and VCC. Operating conditions: Forward rotation, strut extension, the phase difference between HALL A and HALL B is 90°±30°, HALL A rising edge, HALL B level is low, and the door state is open. Operating conditions: Reverse rotation, strut shortening, the phase difference between HALL A and HALL B is 270°, HALL A rising edge, HALL B... B level is high level, the door status is open, sealing test, facing the ball socket opening direction, the test pressure is 20 kPa, the pressure drop value is <180 Pa, the balancing time is 7s, the inflation time is 5s, the pressure holding time is 5s, the deflation time is 2s, and the Hall signal phase difference during the extension process is shown in the table below:

[0026]

Claims

1. An electric strut, comprising a plug (1) and a lower ball socket assembly (5), characterized in that: The ball socket (2) and the lower ball socket assembly (5) are connected by a snap fastener. The ball socket (2) is hollow in the middle and a PCBA board (6) is provided in the middle of the ball socket (2). The lower ball socket assembly (5) is provided with a wire hole (8) in the middle. The wire harness passes through the wire hole (8). The wire harness includes a power line a, a power line b and a signal line. The power line a is provided with a terminal. The terminal is inserted into the ball socket (2). The signal line and the power line b are soldered on the PCBA board (6). One end of the wire harness is connected to the PCBA board (6) and the other end of the wire harness is connected to the plug (1). A tube with a left sheath (4) is provided outside the front opening of the wire hole (8). A glue plug (9) is provided between the tube opening and the wire harness. Glue is applied from the tube to the rear of the wire hole (8). The signal line is a Hall wire.

2. The electric strut according to claim 1, characterized in that: The ball socket (2) is provided with a socket (14) and a terminal block (11) on both sides. The middle and bottom of the ball socket (2) are recessed inward. The top inner wall and bottom inner wall of the ball socket (2) are provided with a baffle (13). The baffle (13) is provided with a locking post (12). The middle inner wall and bottom inner wall of the ball socket (2) are provided with a buckle a (17). The inner wall of the socket (14) is provided with a buckle b (15).

3. The electric strut according to claim 2, characterized in that: The side wall of the card post (12) is provided with a protruding strip, the opening of the terminal block (11) matches the shape of the terminal, and the two sides of the terminal block (11) are provided with blocks (19).

4. An electric strut according to claim 1, characterized in that: The lower ball socket assembly (5) has inserts (16) on both sides of the front part, inserts (16) have a hole in the middle, the outer wall of the head of inserts (16) has a slope, and a wall (10) is provided in the middle. The wall (10) is racetrack shaped, and a wire hole (8) is provided in the middle of the wall (10). The wire hole (8) is an oblique hole that is inclined from the middle to the outside.

5. An electric strut according to claim 1, characterized in that: The PCBA board (6) has a round hole, an arc surface at the bottom, and sloping surfaces on both sides at the top, with a signal line hole in the middle.

6. An electric strut according to claim 1, characterized in that: The wire harness on one side of the plug (1) is covered with heat shrink tubing (3), and the heat shrink tubing (3) is wrapped with protective cloth. The other side of the heat shrink tubing (3) is corrugated tubing.

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