New energy automobile wire harness anti-loosening joint
By designing a clamping mechanism in the wiring harness joint of a new energy vehicle, the sliding connection strip and inclined guide groove are used to realize the left and right movement of the clamping block, the problem of hard work and high looseness in the existing technology is solved, and the effect of convenient plugging and unplugging and stable connection is achieved.
Patent Information
- Application Number
- CN202421314503.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The existing new energy vehicle wiring harness joints are tightened by friction, which makes it difficult to plug and unplug and has a high risk of loosening under vibration conditions. Multiple plugging and unplugging will damage the anti-loosening performance.
An anti-loosening joint including a joint seat, a joint body and a transmission line is designed. The clamping mechanism is adopted to realize the left and right movement of the joint block through a sliding connection strip and an inclined guide groove. Combined with the limiting groove and the preloading force of the compression spring, the joint body and the sleeve are ensured to be firmly connected.
It realizes convenient plug-and-removal operation, enhances the stability and reliability of anti-loosening performance, and avoids the damage to anti-loosening performance caused by multiple plug-and-removal.
Smart Images
Figure CN222546806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of new energy vehicle wiring harnesses, in particular to an anti-loosening connector for new energy vehicle wiring harnesses. Background Art
[0002] In modern cars, the wiring harness is the wires that connect various electrical devices inside the car. It is the network body of the car circuit. Its function is to connect the car's electrical and electronic components and enable them to function. Without the wiring harness, there would be no car circuit. It is one of the important factors affecting the performance of the car, especially for the rapidly developing new energy vehicles. The wiring harness network is more complex and the number is greater, so the connection stability of the wiring harness is higher. After the connection is completed, the wiring harness must have a stable anti-loosening ability.
[0003] However, current wiring harness connectors usually still use a damping connection method, that is, the friction between the connector sleeve and the connector body is used to prevent loosening, which is not reliable enough, especially when various vibrations are generated during the driving of the car, the risk of loosening increases. In addition, this method of fastening by friction is not only laborious to plug and unplug, but also during maintenance, multiple plugging and unplugging of the connector body will seriously damage the anti-loosening performance of the wiring harness connector, which has major defects. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a new energy vehicle wiring harness anti-loosening connector in response to the above-mentioned technical deficiencies. The connector has convenient plugging and unplugging operations, stable and reliable anti-loosening performance, and can avoid the impact of multiple plugging and unplugging on the anti-loosening performance.
[0005] The technical solution adopted by the utility model is: to provide a new energy vehicle wiring harness anti-loosening connector, including a connector sleeve, a connector body and a transmission line connected to the connector body, wherein a first through slot is opened on the upper side of the connector sleeve along the front-to-back direction; a first limiting slot is connected to the left side of the first through slot; the first limiting slot is arranged along the left-to-right direction; a second through slot is opened on the upper side of the connector body along the front-to-back direction; a second limiting slot is connected to the left side of the second through slot; the second limiting slot is arranged along the left-to-right direction; a clamping limiting mechanism is arranged between the second through slot and the second limiting slot;
[0006] The clamping limiting mechanism comprises a control strip slidably connected to the lower part of the second through slot; a support block is fixed at the front end of the control strip; a protective sleeve is fixed at the front end of the joint body; the protective sleeve is sleeved on the outside of the transmission line; the support block is slidably connected to the protective sleeve; an inclined guide groove is provided on the control strip; the front end of the guide groove is on the left side of the control strip, and the rear end of the guide groove is on the right side of the control strip; a clamping block is provided at the upper end of the control strip; the left part of the clamping block is slidably connected to the second limiting groove along the left and right directions; a connecting column is fixed at the lower end of the clamping block; the connecting column is correspondingly located in the guide slot; when the connecting column is at the rear end of the guide slot, the left side of the clamping block is on the right side of the second limiting groove, and the clamping block corresponds to the first through slot; when the connecting column is at the front end of the guide slot, the left side of the clamping block is on the left side of the second limiting groove, and the left part of the clamping block corresponds to the first limiting slot; a retaining ring is sleeved and fixed on the protective sleeve; the retaining ring is in front of the support block; the retaining ring and the support block are connected by a compression spring; the pre-tightening force of the compression spring is used to make the front end of the guide slot correspond to the connecting column.
[0007] To further optimize the technical solution, a limiting screw is installed on the retaining ring of a new energy vehicle wiring harness anti-loosening connector through the front-to-back direction; the limiting screw is threadedly connected to the retaining ring; a positioning blind hole is opened at the front end of the support block; and the limiting screw is correspondingly plugged into the positioning blind hole.
[0008] To further optimize the technical solution, a new energy vehicle wiring harness anti-loosening connector has an anti-slip ring fixedly sleeved on the rear of a limiting screw.
[0009] To further optimize the technical solution, a control strip surface, a guide groove inner wall and a clamping block surface of an anti-loosening connector for a new energy vehicle wiring harness are coated with Teflon coating.
[0010] The beneficial effects of the utility model are:
[0011] 1. The clamping block is connected in the second limiting groove by sliding along the left and right directions, thereby limiting the connection column fixed at the lower end of the clamping block to be able to move left and right; since the structure of the guide groove is in an inclined shape with the front end being on the left side of the control strip and the rear end being on the right side of the control strip, the connection column at the lower end of the clamping block is correspondingly in the guide groove, so when the position of the guide groove on the second through groove is changed by sliding the control strip along the second through groove, the position of the connection column in the guide groove can be changed accordingly, thereby driving the clamping block to move left and right.
[0012] By moving the snap-in block left and right, it can correspond to the first through groove and the first limiting groove respectively. By the snap-in block corresponding to the first through groove, the plugging and unplugging of the connector body and the connector sleeve can be facilitated. By the snap-in block corresponding to the first limiting groove, the locking between the connector body and the connector sleeve can be achieved to prevent the two from loosening.
[0013] 2. When the connecting column is at the front end of the guide groove, the left side of the clamping block is at the left side of the second limiting groove, and the left part of the clamping block corresponds to the first limiting groove. The preload force of the compression spring is used to make the front end of the guide groove correspond to the connecting column. The position of the guide groove can be limited by the preload force of the compression spring, ensuring that the clamping block is firmly plugged into the first limiting groove, and ensuring the anti-loosening performance of the joint body and the joint sleeve. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the structure of the utility model;
[0015] Figure 2 It is a schematic diagram of the structure inside the joint sleeve;
[0016] Figure 3 A schematic diagram of the structure of a working state of the clamping limiting mechanism;
[0017] Figure 4 It is a schematic diagram of the exploded structure of the card connection block and the control strip.
[0018] In the figure, 1. connector sleeve; 2. connector body; 3. transmission line; 4. first through slot; 5. first limiting slot; 6. second through slot; 7. second limiting slot; 8. control strip; 9. support block; 10. protective sleeve; 11. guide slot; 12. clamping block; 13. connecting column; 14. retaining ring; 15. compression spring; 16. limiting screw; 17. positioning blind hole; 18. anti-slip ring. DETAILED DESCRIPTION
[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0020] like Figure 1-2 As shown, a new energy vehicle wiring harness anti-loosening connector includes a connector sleeve 1, a connector body 2 and a transmission line 3 connected to the connector body 2. A first through groove 4 is opened on the upper side of the connector sleeve 1 along the front-to-back direction; a first limiting groove 5 is connected to the left side of the first through groove 4; the first limiting groove 5 is arranged along the left-to-right direction; a second through groove 6 is opened on the upper side of the connector body 2 along the front-to-back direction; a second limiting groove 7 is connected to the left side of the second through groove 6; the second limiting groove 7 is arranged along the left-to-right direction; a clamping limiting mechanism is arranged between the second through groove 6 and the second limiting groove 7.
[0021] like Figure 3-Figure 4As shown, the clamping and limiting mechanism includes a control strip 8 slidably connected to the lower part of the second through slot 6; a support block 9 is fixed to the front end of the control strip 8; a protective sleeve 10 is fixed to the front end of the connector body 2; the protective sleeve 10 is sleeved on the outside of the transmission line 3; the support block 9 is slidably connected to the protective sleeve 10; an inclined guide groove 11 is provided on the control strip 8; the front end of the guide groove 11 is located on the left side of the control strip 8, and the rear end of the guide groove 11 is located on the right side of the control strip 8; a clamping block 12 is provided at the upper end of the control strip 8; the left part of the clamping block 12 is slidably connected to the second limiting slot 7 along the left and right directions; a connecting column 13 is fixed to the lower end of the clamping block 12; the connecting column 13 is correspondingly located in the guide slot 11; as shown in FIG. Figure 3 As shown, when the connecting column 13 is at the rear end of the guide groove 11, the left side of the clamping block 12 is at the right side of the second limiting groove 7, and the clamping block 12 corresponds to the first through groove 4; Figure 1 As shown, when the connecting column 13 is at the front end of the guide groove 11, the left side of the clamping block 12 is at the left side of the second limiting groove 7, and the left part of the clamping block 12 corresponds to the first limiting groove 5; a retaining ring 14 is sleeved and fixed on the protective sleeve 10; the retaining ring 14 is in front of the support block 9; the retaining ring 14 and the support block 9 are connected by a compression spring 15; the preload force of the compression spring 15 is used to make the front end of the guide groove 11 correspond to the connecting column 13.
[0022] When the connector body 2 and the connector sleeve 1 need to be plugged in or out, the control strip 8 is pulled forward to compress the compression spring 15, and the compression spring 15 moves forward through the inclined guide slot 11, driving the connecting column 13 to move to the right until the connecting column 13 is blocked by the rear end of the guide slot 11. Figure 3 As shown, only a small part of the left side of the clamping block 12 is still in the second limiting groove 7, and at this time the clamping block 12 slides correspondingly with the first through groove 4, so the connector body 2 can be easily plugged in and out of the connector sleeve 1 without being blocked by the clamping block 12, and the operation is convenient.
[0023] When the connector body 2 and the connector sleeve 1 are plugged into place, the compression of the compression spring 15 is released, and the elastic force of the compression spring 15 drives the control strip 8 to move backward, the guide groove 11 to move backward, and the connecting column 13 to move leftward until the connecting column 13 blocks the front end of the guide groove 11. Figure 1 As shown, the left end of the clamping block 12 moves into the left end of the second limiting groove 7, and at this time the clamping block 12 is plugged into and corresponds to the first limiting groove 5, which limits the joint body 2 from moving forward, thereby achieving an anti-loosening effect between the joint body 2 and the joint sleeve 1.
[0024] In the above process, anti-loosening is achieved by the first limiting groove 5 blocking and limiting the clamping block 12. Not only is the limiting effect stable, but also because it does not rely on the friction between the connector body 2 and the connector sleeve 1, even if the connector body 2 is plugged in and out multiple times, it will not affect the stability of the anti-loosening effect.
[0025] like Figure 1 , Figure 3 As shown, a limiting screw 16 is installed on the retaining ring 14 along the front-to-back direction; the limiting screw 16 is threadedly connected to the retaining ring 14; a positioning blind hole 17 is opened at the front end of the support block 9; the limiting screw 16 is correspondingly plugged into the positioning blind hole 17.
[0026] By installing the limiting screw 16, the position of the support block 9 can be blocked and limited, so that the support block 9 cannot drive the control strip 8 to move forward, ensuring that the clamping block 12 will not move out of the first limiting groove 5, further ensuring the anti-loosening effect of the joint body 2.
[0027] like Figure 3 As shown, the rear part of the limiting screw 16 is sleeved and fixed with an anti-slip ring 18. When the limiting screw 16 blocks the support block 9, the anti-slip ring 18 can prevent the limiting screw 16 from falling off the retaining ring 14, effectively preventing the limiting screw 16 from being lost.
[0028] In order to facilitate and quickly release the blocking of the support block 9 by the limiting screw 16, it can be arranged that only the front part of the limiting screw 16 has threads, and the rear part does not have threads.
[0029] The surface of the control strip 8, the inner wall of the guide groove 11 and the surface of the clamping block 12 are all coated with Teflon coating. The Teflon coating can improve the surface smoothness, which is conducive to the plugging and unplugging of the connector body 2, and has good wear resistance, which is conducive to ensuring the durability of multiple plugging and unplugging.
[0030] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.
Claims
1. A new energy vehicle wiring harness anti-loosening connector, comprising a connector sleeve (1), a connector body (2) and a transmission line (3) connected to the connector body (2), characterized in that: A first through slot (4) is formed on the upper side of the joint sleeve (1) along the front-to-back direction; a first limiting slot (5) is connected to the left side of the first through slot (4); the first limiting slot (5) is arranged along the left-to-right direction; a second through slot (6) is formed on the upper side of the joint body (2) along the front-to-back direction; a second limiting slot (7) is connected to the left side of the second through slot (6); the second limiting slot (7) is arranged along the left-to-right direction; a clamping limiting mechanism is arranged between the second through slot (6) and the second limiting slot (7); The clamping and limiting mechanism comprises a control strip (8) slidably connected to the lower part of the second through slot (6); a support block (9) is fixed at the front end of the control strip (8); a protective sleeve (10) is fixed at the front end of the connector body (2); the protective sleeve (10) is sleeved on the outside of the transmission line (3); the support block (9) is slidably connected to the protective sleeve (10); an inclined guide groove (11) is provided on the control strip (8); the front end of the guide groove (11) is located on the left side of the control strip (8), and the rear end of the guide groove (11) is located on the right side of the control strip (8); a clamping block (12) is provided at the upper end of the control strip (8); the left part of the clamping block (12) is slidably connected to the second limiting slot (7) along the left-right direction; a connecting column (13) is fixed at the lower end of the clamping block (12); The connecting column (13) is correspondingly located in the guide groove (11); when the connecting column (13) is located at the rear end of the guide groove (11), the left side of the clamping block (12) is located at the right side of the second limiting groove (7), and the clamping block (12) corresponds to the first through groove (4); when the connecting column (13) is located at the front end of the guide groove (11), the left side of the clamping block (12) is located at the left side of the second limiting groove (7), and the left part of the clamping block (12) corresponds to the first limiting groove (5); a retaining ring (14) is sleeved and fixed on the protective sleeve (10); the retaining ring (14) is located in front of the support block (9); the retaining ring (14) and the support block (9) are connected by a compression spring (15); the preload force of the compression spring (15) is used to make the front end of the guide groove (11) correspond to the connecting column (13).
2. The anti-loosening connector for wiring harness of new energy vehicles according to claim 1 is characterized in that: A limiting screw (16) is installed through the retaining ring (14) along the front-to-back direction; the limiting screw (16) is threadedly connected to the retaining ring (14); a positioning blind hole (17) is opened at the front end of the support block (9); the limiting screw (16) and the positioning blind hole (17) are correspondingly plugged.
3. The anti-loosening connector for wiring harness of new energy vehicles according to claim 2 is characterized in that: An anti-drop ring (18) is sleeved and fixed on the rear of the limiting screw (16).
4. The anti-loosening connector for wiring harness of new energy vehicles according to claim 1 is characterized in that: The surface of the control strip (8), the inner wall of the guide groove (11) and the surface of the clamping block (12) are all coated with a Teflon coating.