Automobile connector terminal structure

Abstract

The application relates to the technical field of automobile connector, and discloses an automobile connector wiring terminal structure, which comprises a wiring terminal body, one end of the wiring terminal body is fixedly connected with a protective shell, the inner side of the protective shell is fixedly connected with a terminal plug-in body, the bottom end of the protective shell is provided with a locking piece, the locking piece comprises an extension seat fixedly connected at the bottom of the protective shell, the bottom wall of the inner side of the extension seat is fixedly connected with a locking block, and the top end of the inner side of the extension seat is fixedly connected with an elastically pressed sheet arranged in an inclined mode; the output end of the terminal plug-in body is slidably connected with a terminal connector, the two sides of the terminal connector are fixedly connected with limiting blocks, the two sides of the protective shell are provided with positioning pieces, and the inner side of the protective shell is provided with an unlocking piece used for releasing the limitation of the limiting blocks by the positioning pieces. The self-locking mechanism composed of the elastic clamping blocks and the limiting blocks and the double locking pieces composed of the L-shaped locking blocks and the elastically pressed sheets can realize high connection reliability.

Description

Technical Field

[0001] This invention relates to the field of automotive connector technology, and more specifically, to an automotive connector terminal structure. Background Technology

[0002] Automotive connectors are key components in automotive electronic and electrical systems, responsible for the reliable transmission and distribution of signals and power within complex wiring harness networks. As the core conductive component of the connector, the terminal block's structural reliability, ease of operation, and long-term stability are crucial. With the increasing electrification and intelligence of automobiles, the number of on-board electronic control units (ECUs), sensors, and actuators has surged, leading to increasingly complex vehicle wiring harnesses and higher demands on connectors. Modern automotive connectors need to operate in harsh environments, including continuous vibration, drastic temperature variations (-40°C to 125°C or even higher), humidity, and chemical corrosion.

[0003] The existing automotive connector terminal structure has certain technical defects in practical use, as follows: First, the existing connector terminal structure uses a simple plug-in structure (such as relying solely on friction or simple snap-fit). Under the long-term vibration environment of automobiles, the contact resistance is easily increased due to material fatigue or slight displacement, or even completely loosened, causing failure. Secondly, existing connector terminal structures are generally designed to be too tight to prevent loosening, resulting in difficult insertion and removal (excessive insertion and removal force); or they are designed to be too simple to save effort, making them prone to loosening. Third, existing connector terminal structures require tools (such as screwdrivers) to unlock, or are difficult to apply force in narrow spaces; some have unclear unlocking mechanisms, which can easily lead to misoperation or damage to the terminals. In view of this, the present invention proposes a terminal structure for automotive connectors. Summary of the Invention

[0004] This invention proposes a terminal structure for automotive connectors, which solves the problem that the existing plug-in structure is prone to loosening under long-term use in automobiles.

[0005] The technical solution of the present invention is as follows: A terminal block structure for an automotive connector includes a terminal block body, one end of which is fixedly connected to a protective shell, a terminal plug body is fixedly connected to the inner side of the protective shell, a locking member is provided at the bottom of the protective shell, the locking member includes an extension seat fixedly connected to the bottom of the protective shell, a locking block is fixedly connected to the bottom wall of the inner side of the extension seat, and an inclined elastic pressure plate is fixedly connected to the top of the inner side of the extension seat. The terminal connector is slidably fitted with a terminal plug at the output end of the terminal plug body. Limiting blocks are fixedly connected to both sides of the terminal plug. Positioning elements for preventing the limiting blocks from disengaging from the protective shell are provided on both sides of the protective shell. Unlocking elements for releasing the positioning elements from restricting the limiting blocks are provided on the inner side of the protective shell.

[0006] Preferably, the locking component further includes a lever fixedly connected to one end of the elastic pressure plate, wherein the lever and the elastic pressure plate are integrally formed.

[0007] Preferably, the locking block has an L-shaped cross-section, and the height of the locking block is greater than the height of the bottom of the inclined surface of the elastic pressure plate.

[0008] Preferably, the positioning element includes two elastic blocks, and the protective shell has relief grooves on both sides corresponding to the elastic blocks. The two elastic blocks are inclined and fixedly connected in the corresponding relief grooves.

[0009] Preferably, the elastic block is integrally formed with a wedge-shaped block, and the thickness of the wedge-shaped block at the end of the elastic block is greater than the thickness of the elastic block.

[0010] Preferably, the unlocking component includes a mounting base fixedly connected to the top of the protective shell, a slider slidably connected to the inner side of the mounting base, a movable plate fixedly connected to the bottom of the slider, the movable plate slidably connected to the inner wall of the protective shell, and protrusions fixedly connected to both ends of the movable plate, which are offset from the limiting block. The two protrusions abut against the corresponding elastic locking blocks by cooperating with the translation of the movable plate.

[0011] Preferably, the movable plate is positioned in the vertical plane between the outer wall of the protective shell and the outer wall of the terminal connector, and the movable plate can be fitted onto the outer wall of the terminal connector.

[0012] Preferably, the unlocking component further includes a push block fixedly connected to the top of the slider, and the top surface of the push block has a plurality of anti-slip textures evenly distributed along the length direction of the push block.

[0013] Preferably, a return spring is sleeved on the inner side of the mounting base, one end of the return spring abuts against the slider, and the other end of the return spring abuts against the inner wall of the mounting base.

[0014] Preferably, in the free state, the protrusion of the return spring is completely disengaged from the elastic block, and in the fully compressed state, the protrusion of the return spring applies pressure to the elastic block and disengages it from the limiting block.

[0015] The working principle and beneficial effects of this invention are as follows: 1. This invention ensures the stability of the connection by locking the terminal connector and the protective shell, as well as locking the entire connector and the mating terminals. After the terminal connector is inserted, the limiting blocks on both sides are automatically locked by the elastic blocks on both sides of the protective shell, forming a "one-way self-locking". This locking method relies on mechanical interference to effectively resist the slight displacement caused by long-term vehicle vibration and prevent the terminal connector from accidentally coming off.

[0016] 2. The locking component at the bottom of the protective shell of the present invention adopts a combination of an L-shaped locking block and an inclined elastic pressure plate. After the mating terminal is inserted, the elastic pressure plate rebounds and presses down, forming a hook-like snap-fit ​​structure with the locking block, which provides strong tensile strength and ensures that the connection with the mating terminal does not loosen.

[0017] 3. When installing the terminal connector, this invention only requires pushing the limiting block directly along the wedge-shaped inclined surface of the elastic locking block to easily open it. Once in place, it automatically locks without additional operation, simplifying the assembly process. When disassembling, simply push the unlocking block in one direction. This action is transmitted to the protrusions at both ends through the slider and movable plate, simultaneously squeezing the elastic locking blocks on both sides, deforming them, and thus releasing the limiting block. This design concentrates the operation at one point and utilizes the lever principle, allowing the locking to be released with a small pushing force, avoiding hard pulling.

[0018] 4. The unlocking component of this invention integrates a reset spring. After the push block is released, the spring force drives the entire unlocking mechanism to automatically return to the initial position, causing the protrusion to disengage from the elastic block. This ensures that the locking function automatically returns to the standby state after each disassembly, without the need for manual reset, preventing secondary failures caused by forgetting to reset. In addition, when separating from the mating terminal, the elastic pressure plate can be lifted and the lock released simply by using a finger to turn the lever on the locking component, facilitating manual operation in narrow spaces.

[0019] 5. The movable plate of the present invention is designed to fit on the outer wall of the terminal connector, which provides precise guidance for its translational movement, ensuring that the protrusion can accurately act on the predetermined position of the elastic block, avoiding unlocking failure. At the same time, it also provides auxiliary support for the terminal connector and enhances its anti-shaking ability.

[0020] 6. The design of the locking block in this invention, with its height greater than the lowest point of the inclined surface of the elastic pressure plate, ensures that the mating terminal must be inserted to a sufficient depth (for the locking block to function) before the elastic pressure plate can be locked in place. This serves as a "position detection" function, preventing loose connections caused by incomplete insertion. Unlocking requires actively pushing the block; normal vibration and tension will not trigger this action, preventing false locking. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0022] Figure 1 This is a schematic diagram of the structure of an automotive connector terminal block according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an automotive connector terminal block according to the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the locking component of an automotive connector terminal structure according to the present invention; Figure 4 This is a partial structural diagram of an automotive connector terminal structure according to the present invention; Figure 5 This is an anatomical diagram of the elastic locking block of an automotive connector terminal structure according to the present invention; Figure 6 This is an anatomical diagram of an unlocking component for an automotive connector terminal structure according to the present invention; Figure 7 This is a schematic diagram of the unlocking component of an automotive connector terminal structure according to the present invention.

[0023] In the diagram: 1. Terminal block body; 2. Protective housing; 3. Terminal plug body; 4. Locking element; 41. Extension seat; 42. Locking block; 43. Elastic pressure plate; 44. Paddle; 5. Relief groove; 6. Elastic locking block; 7. Unlocking element; 71. Mounting base; 72. Slider; 73. Movable plate; 74. Protrusion; 75. Pushing block; 76. Return spring; 8. Limiting block; 10. Terminal connector. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] like Figures 1 to 7As shown, this embodiment proposes a terminal block structure for an automotive connector, including a terminal block body 1. One end of the terminal block body 1 is fixedly connected to a protective shell 2. A terminal plug body 3 is fixedly connected to the inner side of the protective shell 2. A locking member 4 is provided at the bottom end of the protective shell 2. The locking member 4 includes an extension seat 41 fixedly connected to the bottom of the protective shell 2. A locking block 42 is fixedly connected to the bottom wall of the inner side of the extension seat 41. An inclined elastic pressure plate 43 is fixedly connected to the top end of the inner side of the extension seat 41. A lever 44 is fixedly connected to one end of the elastic pressure plate 43. The lever 44 and the elastic pressure plate 43 are integrally formed. A terminal connector 10 is slidably fitted to the output end of the terminal plug body 3. Limiting blocks 8 are fixedly connected to both sides of the terminal connector 10. Positioning members for limiting the separation of the limiting blocks 8 from the protective shell 2 are provided on both sides of the protective shell 2. An unlocking member 7 for releasing the restriction of the positioning members on the limiting blocks 8 is provided on the inner side of the protective shell 2.

[0026] In this embodiment, when the terminal connector 10 needs to be connected, it is inserted along the output end of the terminal plug body 3. During the insertion process, the terminal connector 10 drives the limiting blocks 8 on both sides to enter the inner side of the protective shell 2. When the terminal connector 10 is inserted into place, the limiting blocks 8 on both sides move to the position corresponding to the positioning members on both sides of the protective shell 2. The positioning members automatically move to lock the limiting blocks 8, thereby preventing the terminal connector 10 from accidentally coming out of the protective shell 2. When it is necessary to disassemble the terminal connector 10, the unlocking member 7 is operated. The action of the unlocking member 7 will force the positioning member (elastic locking block 6) to deform or displace, releasing the constraint on the limiting blocks 8. At this time, the terminal connector 10 together with the limiting blocks 8 can be pulled out from the protective shell 2. In addition, the locking member 4 at the bottom of the protective housing 2 is used to lock the connection between this terminal structure and the mating terminal (such as a socket). When mating, the mating terminal is inserted into the extension seat 41, and its end will squeeze and pass over the inclined elastic pressure plate 43. Then the elastic pressure plate 43 rebounds. When separation is required, the lever 44 integrated with the elastic pressure plate 43 can be manually moved to deform and lift the elastic pressure plate 43, release the clamping of the mating terminal, and then pull it out. This structure enables quick insertion and removal of the terminal block connector and reliable locking. The cooperation between the positioning element and the limiting block 8 ensures the stability of the connection between the terminal connector 10 and the terminal plug body 3 under normal operating conditions, effectively preventing loosening due to vibration. The independent unlocking element 7 design makes the disassembly process controllable and simple. The locking element 4 ensures the mechanical connection strength of the entire connector after mating with the mating terminals, while its elastic pressure plate 43 and paddle 44 also provide convenient manual unlocking and separation functions.

[0027] In a further preferred embodiment of the present invention, the locking block 42 has an L-shaped cross-section, and the height of the locking block 42 is greater than the height of the bottom of the inclined surface of the elastic pressure plate 43.

[0028] In this embodiment, the L-shaped cross-section of the locking block 42 forms a hook-shaped structure with a vertical and a horizontal surface. When the mating terminal is fully inserted into the extension seat 41 and passes the elastic pressure plate 43, the rebound force of the elastic pressure plate 43 will press down its front end, locking it behind the corresponding groove or protrusion of the mating terminal. At this time, the vertical surface or hook-shaped part of the locking block 42 interferes with the end face or structure of the mating terminal, while the elastic pressure plate 43 provides downward pressure from above. The two work together to firmly restrict the mating terminal within the extension seat 41, preventing it from axially exiting. The height design of the locking block 42 (greater than the bottom of the inclined surface of the elastic pressure plate 43) ensures that the mating terminal must be pushed to a sufficiently deep position so that the locking block 42 can effectively function before the elastic pressure plate 43 can be engaged, ensuring the completeness of the locking action. The L-shaped locking block 42 and the elastic pressure plate 43 of this design form a double locking mechanism, which greatly improves the pull-out strength and reliability of the connector after mating. The height difference design plays the role of "position detection" and "sequential locking", ensuring that the mating terminals must be inserted into the correct position to complete the locking, avoiding problems such as loose connection or easy loosening caused by incomplete insertion, and improving the safety level of the connection.

[0029] In a further preferred embodiment of the present invention, the positioning component includes two elastic blocks 6, and the protective shell 2 has relief grooves 5 on both sides corresponding to the elastic blocks 6. The two elastic blocks 6 are inclined and fixedly connected in the corresponding relief grooves 5. The elastic blocks 6 are integrally formed with wedge-shaped blocks, and the thickness of the wedge-shaped blocks at the end of the elastic blocks 6 is greater than the thickness of the elastic blocks 6.

[0030] In this embodiment, when the terminal connector 10 is inserted into the protective housing 2, the limiting blocks 8 on both sides will contact the wedge-shaped blocks at the ends of the inclined elastic locking blocks 6. Under the action of continued insertion force, the limiting blocks 8 slide along the inclined surface of the wedge-shaped blocks, squeezing the elastic locking blocks 6 outward, causing them to bend elastically into the clearance groove 5, thereby making way for the limiting blocks 8. After the limiting blocks 8 have completely slid past the ends of the elastic locking blocks 6, the elastic locking blocks 6 return to their original position due to their own elasticity. The thicker wedge-shaped block at its end is precisely stuck behind the limiting blocks 8 (on the side closer to the terminal body 1), forming mechanical interference. At this time, if you want to pull out the terminal connector 10 in the opposite direction, the limiting blocks 8 will be blocked by the wedge-shaped blocks of the elastic locking blocks 6, thereby achieving locking. The inclined fixing method of the elastic locking blocks 6 enhances its one-way passage and reverse locking characteristics. This design achieves a "one-way self-locking" function, making the installation process of the terminal connector 10 smooth (simply push it in) and automatically locking it after installation, eliminating the need for additional locking operations and simplifying the assembly process. The wedge-shaped head design of the elastic locking block 6 provides a larger and more stable contact area during locking, and the inclined guide reduces the insertion force. The overall structure is simple and efficient, and the material elasticity achieves a reliable anti-retraction function.

[0031] In a further preferred embodiment of the present invention, the unlocking component 7 includes a mounting base 71 fixedly connected to the top of the protective shell 2. A slider 72 is slidably connected to the inner side of the mounting base 71. A movable plate 73 is fixedly connected to the bottom of the slider 72. The movable plate 73 is slidably connected to the inner wall of the protective shell 2. Both ends of the movable plate 73 are fixedly connected to protrusions 74 that are misaligned with the limiting block 8. The two protrusions 74 abut against the corresponding elastic locking block 6 by cooperating with the translation of the movable plate 73.

[0032] In this embodiment, when it is necessary to disassemble the terminal connector 10, the operator pushes or slides the slider 72 of the unlocking member 7 in a specified direction (usually parallel to the terminal insertion direction or a specific slide rail direction). The slider 72 drives the movable plate 73 at its bottom to move translationally within the protective housing 2. The protrusions 74 fixed at both ends of the movable plate 73 move together. Since the initial position of the protrusion 74 is offset from the limiting block 8, its movement trajectory will directly act on the corresponding elastic locking block 6. During the translation process, the side of the protrusion 74 presses the inner side of the elastic locking block 6 (i.e., the side facing the center of the protective housing 2), forcing the elastic locking block 6 to undergo elastic deformation and bend outwards towards the relief groove 5 where it is located. When the end (wedge block) of the elastic locking block 6 moves outwards a sufficient distance due to deformation, it releases the jamming of the limiting block 8. At this point, there is no longer any obstruction behind the limit block 8, and the terminal connector 10 can be freely pulled out from the protective housing 2. After the force on the slider 72 is released, the unlocking member 7 will return to the initial position under the action of the reset mechanism (such as the spring in the following embodiment), the protrusion 74 will disengage from the contact with the elastic block 6, and the elastic block 6 will automatically spring back to reset, ready for the next locking. This design precisely converts the operator's linear push / slide action into a synchronous squeezing action on both sides of the elastic locking blocks 6 through mechanical transmission (slider 72-moving plate 73-protrusion 74), realizing the function of unlocking both sides simultaneously with one action, making the operation highly efficient; the structure is compact, integrating the unlocking mechanism into the top of the protective shell 2 without adding extra volume, and unlocking is achieved by the contact between the protrusion 74 and the elastic locking blocks 6, with direct and reliable force transmission.

[0033] In a further preferred embodiment of the present invention, the movable plate 73 is located between the outer wall of the protective shell 2 and the outer wall of the terminal plug 3 in the vertical plane, and the movable plate 73 can be sleeved on the outer wall of the terminal connector 10.

[0034] In this embodiment, the movable plate 73 is designed to be positioned vertically in the gap between the inner wall of the protective housing 2 and the outer wall of the terminal connector 3. This position ensures that the protrusion 74 on the movable plate 73 can be accurately aligned with the inner force point of the elastic locking block 6 located on the side wall of the protective housing 2. More importantly, the movable plate 73 has a central opening, allowing it to be fitted onto the outer wall of the terminal connector 10. This means that during the insertion or removal of the terminal connector 10, the terminal connector 10 moves through the central hole of the movable plate 73. This fitted relationship, on the one hand, provides guidance for the translational movement of the movable plate 73, ensuring its stable movement trajectory and preventing deviation, thereby allowing the protrusion 74 to act precisely at the predetermined position of the elastic locking block 6; on the other hand, it also provides auxiliary radial support for the portion of the terminal connector 10 inside the housing. This design ensures the accuracy and stability of the unlocking action. The movable plate 73 is fitted onto the terminal connector 10, ensuring that their relative positions are always maintained. This avoids the problem of misalignment between the protrusion 74 and the elastic locking block 6 due to manufacturing tolerances or long-term wear. At the same time, it provides a stable motion guide for the unlocking mechanism, reducing the possibility of friction and jamming, making the operation smoother, and the supporting effect also enhances the anti-shaking ability of the terminal connector 10 within the housing.

[0035] In a further preferred embodiment of the present invention, the unlocking component 7 further includes a push block 75 fixedly connected to the top of the slider 72, and the top surface of the push block 75 is provided with a plurality of anti-slip textures equidistantly distributed along the length direction of the push block 75. In this embodiment, the push block 75 is fixedly connected to the top of the slider 72, serving as the part directly operated by the human hand. Several anti-slip grooves on its top surface increase the coefficient of friction between the finger and the contact surface of the push block 75. When the operator needs to push the slider 72 with their thumb or finger to trigger unlocking, the anti-slip grooves effectively prevent the finger from slipping, ensuring that the pushing force is effectively transmitted to the slider 72, thereby driving the entire unlocking component 7 to move. This design significantly improves the convenience of human-computer interaction and operational reliability. In automotive repair or assembly environments, operators' hands may be greasy or sweaty, and smooth surfaces can easily lead to failure in applying force. The anti-slip texture design ensures sufficient friction under various working conditions, enabling successful unlocking on the first attempt, thus improving user experience and operational efficiency.

[0036] In a further preferred embodiment of the present invention, a return spring 76 is sleeved on the inner side of the mounting base 71. One end of the return spring 76 abuts against the slider 72, and the other end of the return spring 76 abuts against the inner wall of the mounting base 71. In the free state, the protrusion 74 of the return spring 76 is completely disengaged from the elastic block 6. In the fully compressed state, the protrusion 74 of the return spring 76 applies pressure to the elastic block 6 and disengages it from the limiting block 8.

[0037] In this embodiment, the reset spring 76 is sleeved inside the mounting base 71 and is in a pre-compressed or compressible state. In the free state, the spring force pushes the slider 72 to the initial position. At this time, the protrusion 74 is completely disengaged from the elastic block 6, without affecting the normal locking function of the elastic block 6. When the operator pushes the push block 75 to unlock, the slider 72 compresses the reset spring 76 to store energy. When the push block 75 is released, the elastic potential energy stored in the reset spring 76 is released, pushing the slider 72 (along with the movable plate 73 and the protrusion 74) to automatically and accurately return to the initial position. The spring design ensures that "in the fully compressed state, the protrusion 74 can apply sufficient pressure to the elastic block 6 to disengage it from the limit block 8," while "in the free state, the protrusion 74 is completely disengaged from the elastic block 6," clarifying the two stable states of the mechanism's operation. This design realizes the automatic reset of the unlocking mechanism. After the operator completes the action of disassembling the terminal connector, there is no need to manually push the unlocking slider back; the mechanism automatically returns to the standby state, simplifying the operation steps. The spring return mechanism ensures that after each unlocking action, the protrusion 74 completely leaves the working area of ​​the elastic block 6, ensuring that the elastic block 6 can rebound without interference and lock the next inserted terminal connector, avoiding locking failure due to the mechanism not returning to its original position. At the same time, the spring force also provides a clear operating feel.

[0038] Overall usage process: I. Installation of Terminal Connector 10: The operator inserts the terminal connector 10 into the protective housing 2 along the output end of the terminal plug body 3. During insertion, the limiting blocks 8 on both sides of the terminal connector 10 contact and press the wedge-shaped blocks at the ends of the elastic locking blocks 6 inclined on both sides of the protective housing 2. Under the continuous insertion force, the limiting blocks 8 slide along the inclined surface of the wedge-shaped blocks, forcing the elastic locking blocks 6 to undergo elastic bending deformation into the clearance groove 5, thereby making way for the limiting blocks 8. After the limiting blocks 8 have completely slid past the ends of the elastic locking blocks 6, the elastic locking blocks 6 return to their initial position by their own elasticity. The thicker wedge-shaped block at its end is precisely locked behind the limiting blocks 8 (on the side closer to the terminal body 1), forming mechanical interference and achieving automatic locking to prevent the terminal connector 10 from coming out in the opposite direction. II. Disassembly of terminal connector 10: When it is necessary to disassemble the terminal connector 10, the operator manually pushes the push block 75 of the unlocking piece 7 located on the top of the protective housing 2. The push block 75 causes the slider 72 to slide within the mounting base 71, compressing the return spring 76. The translational movement of the slider 72 is transmitted through the movable plate 73 at its bottom to the protrusions 74 at both ends of the movable plate 73. The protrusions 74 then translate and press against the inner side of the elastic locking block 6 on the corresponding side, forcing the elastic locking block 6 to undergo elastic deformation and bend outwards towards the relief groove 5 where it is located. When the wedge-shaped block at the end of the elastic locking block 6 moves outwards a sufficient distance due to deformation, it releases the obstruction of the limiting block 8. At this time, there is no longer any obstruction behind the limiting block 8, and the operator can freely pull the terminal connector 10 out of the protective housing 2. After the push block 75 is released, the compressed return spring 76 releases its elastic force, pushing the slider 72, the movable plate 73 and the protrusion 74 to return to the initial position automatically and accurately. The protrusion 74 is completely disengaged from the elastic block 6, and the elastic block 6 automatically springs back to reset, ready to perform the next locking. III. Connection between this terminal and the mating terminal: When mates this terminal with a mating terminal (such as a socket), insert the mating terminal into the extension seat 41 of the locking member 4 at the bottom of the protective housing 2. During insertion, the end of the mating terminal will press against and pass over the inclined elastic pressure plate 43. When the mating terminal is fully inserted, the elastic pressure plate 43 rebounds under its own elasticity, and its front end presses down and locks behind the corresponding structure (such as a groove) of the mating terminal. At the same time, the locking block 42 with an L-shaped cross-section fixed to the inner bottom wall of the extension seat 41 interferes with the end face or structure of the mating terminal with its hook-shaped part. The downward pressure of the elastic pressure plate 43 and the blocking effect of the locking block 42 work together to firmly lock the mating terminal in the extension seat 41. IV. Separation of this terminal from the mating terminal; When separation is required, the operator uses their finger to move the lever 44, which is fixedly connected to one end of the elastic pressure plate 43. Moving the lever 44 will deform the elastic pressure plate 43 and lift it upward, thereby releasing its clamping on the mating terminal. At this time, the interference between the mating terminal and the locking block 42 is also eliminated, and the mating terminal can be pulled out from the extension seat 41.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A terminal block structure for an automotive connector, comprising a terminal block body (1), wherein a protective housing (2) is fixedly connected to one end of the terminal block body (1), and a terminal plug body (3) is fixedly connected to the inner side of the protective housing (2), characterized in that, The bottom end of the protective shell (2) is provided with a locking member (4). The locking member (4) includes an extension seat (41) fixedly connected to the bottom of the protective shell (2). A locking block (42) is fixedly connected to the bottom wall of the inner side of the extension seat (41). An inclined elastic pressure plate (43) is fixedly connected to the top end of the inner side of the extension seat (41). The terminal connector (10) is slidably fitted at the output end of the terminal connector (3). Limiting blocks (8) are fixedly connected to both sides of the terminal connector (10). Positioning elements for limiting the separation of the limiting blocks (8) from the protective shell (2) are provided on both sides of the protective shell (2). Unlocking elements (7) for releasing the restriction of the positioning elements on the limiting blocks (8) are provided on the inner side of the protective shell (2).

2. The automotive connector terminal structure according to claim 1, characterized in that, The locking component (4) also includes a paddle (44) fixedly connected to one end of the elastic pressure plate (43), and the paddle (44) and the elastic pressure plate (43) are integrally formed.

3. The automotive connector terminal structure according to claim 2, characterized in that, The locking block (42) has an L-shaped cross-section, and the height of the locking block (42) is greater than the height of the bottom of the inclined surface of the elastic pressure plate (43).

4. The automotive connector terminal structure according to claim 1, characterized in that, The positioning component includes two elastic blocks (6), and the protective shell (2) has relief grooves (5) on both sides corresponding to the elastic blocks (6). The two elastic blocks (6) are inclined and fixedly connected in the corresponding relief grooves (5).

5. The automotive connector terminal structure according to claim 4, characterized in that, The elastic card block (6) is integrally formed with a wedge-shaped block, and the thickness of the wedge-shaped block at the end of the elastic card block (6) is greater than the thickness of the elastic card block (6).

6. The automotive connector terminal structure according to claim 5, characterized in that, The unlocking component (7) includes a mounting base (71) fixedly connected to the top of the protective shell (2). A slider (72) is slidably connected to the inner side of the mounting base (71). A movable plate (73) is fixedly connected to the bottom of the slider (72). The movable plate (73) is slidably connected to the inner wall of the protective shell (2). Both ends of the movable plate (73) are fixedly connected to protrusions (74) that are misaligned with the limiting block (8). The two protrusions (74) collide with the corresponding elastic locking block (6) by cooperating with the translation of the movable plate (73).

7. The automotive connector terminal structure according to claim 6, characterized in that, The movable plate (73) is located between the outer wall of the protective shell (2) and the outer wall of the terminal plug (3) in the vertical plane, and the movable plate (73) can be sleeved on the outer wall of the terminal connector (10).

8. The automotive connector terminal structure according to claim 6, characterized in that, The unlocking component (7) also includes a push block (75) fixedly connected to the top of the slider (72), and the top surface of the push block (75) is provided with a plurality of anti-slip textures equidistantly distributed along the length direction of the push block (75).

9. The automotive connector terminal structure according to claim 8, characterized in that, A return spring (76) is sleeved on the inner side of the mounting base (71). One end of the return spring (76) abuts against the slider (72), and the other end of the return spring (76) abuts against the inner wall of the mounting base (71).

10. The automotive connector terminal structure according to claim 9, characterized in that, In the free state, the protrusion (74) of the return spring (76) is completely disengaged from the elastic block (6). In the fully compressed state, the protrusion (74) of the return spring (76) applies pressure to the elastic block (6) and disengages it from the limiting block (8).

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