Automobile wiring harness terminal connector

Abstract

The utility model discloses an automobile wiring harness terminal connector, and relates to the technical field of automobile wiring harnesses. The terminal connector comprises a terminal connector body, two sides of a wire plugging end of the terminal connector body are respectively provided with a plugging positioning mechanism, a positioning end of each plugging positioning mechanism is provided with a hanging mechanism, two sides of a wiring end of the terminal connector body are respectively provided with a plugging clamping mechanism, and an unlocking end of each hanging mechanism is provided with a rotary locking mechanism. According to the utility model, the positioning end of the plugging positioning mechanism is inserted into the connecting end of the plugging clamping mechanism, and the hanging mechanism drives the positioning end of the plugging positioning mechanism to open and close, so that the positioning end of the plugging positioning mechanism is clamped in the connecting end of the plugging clamping mechanism; according to the structure, through the mechanical linkage design in the plugging process, the core effects of accurate positioning, automatic clamping and loosening prevention are achieved, it is ensured that the connector still keeps stable contact under vibration, and the plugging reliability is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive wiring harness technology, and more specifically, it relates to an automotive wiring harness terminal connector. Background Technology

[0002] Automotive wiring harness terminal connectors are core components of automotive electrical systems, primarily used to achieve reliable connections and signal transmission between wiring harnesses and electronic devices, sensors, or control units.

[0003] Its core structure includes a housing (engineering plastic or metal) and conductive terminals (copper alloy or gold-plated), which are waterproof, vibration-resistant and corrosion-resistant. It is widely used in power systems, vehicle networks and intelligent driving, and is developing towards high voltage (such as 800V architecture), high frequency (gigabit transmission) and integration with the trend of electrification and intelligence. It is a key component to ensure the electrical stability and functional expandability of automobiles.

[0004] According to the automotive external wiring harness connector disclosed in Chinese Patent Publication No. CN217607116U, by engaging two sets of locking frames on the surface of the wiring harness connector body, the two sets of locking frames can be limited to the surface of the wiring harness connector body by connecting posts. The friction between the protective pad and the surface of the wiring harness connector body, and the mutual engagement of the first and second protective covers by magnets, can conveniently shield and protect the connection between the two sets of wiring harness connector bodies.

[0005] However, the aforementioned devices, which fix the connectors magnetically and combine them with the snap-fit ​​connection method in existing technologies, have the following drawbacks in actual use: the vibration and impact environment generated during vehicle operation will significantly affect the reliability of both magnetic and snap-fit ​​connectors; under high-frequency vibration (such as on bumpy roads), magnetic connectors exhibit nonlinear magnetic force attenuation characteristics, while snap-fit ​​structures will experience stress relaxation displacement; in particular, when magnetic connectors are exposed to motors or high-voltage wiring harnesses (motors and high-voltage wiring harnesses inside the vehicle), external magnetic field interference will exacerbate magnetic circuit instability; both types of failure mechanisms together lead to fluctuations in interface contact resistance and the risk of transient disconnection. Utility Model Content

[0006] In view of the problem that vibrations generated during vehicle operation and the internal environment of the vehicle affect magnetic and snap-fit ​​connectors, causing connector disconnection, this utility model proposes an automotive wiring harness terminal connector to overcome the above-mentioned technical problems existing in the prior art.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a terminal connector for automotive wiring harnesses, including a terminal connector body. The terminal connector body has a plug-in positioning mechanism on each side of the plug end. The positioning end of the plug-in positioning mechanism is provided with a hooking mechanism. The terminal connector body has a plug-in locking mechanism on each side of the plug end. The plug-in positioning mechanism and the plug-in locking mechanism are connected to each other. The unlocking end of the hooking mechanism is provided with a rotation locking mechanism.

[0009] The terminal connector body inserts its plug end into the terminal connector body's wiring terminal, so that the positioning end of the plug positioning mechanism is inserted into the connection end of the plug engaging mechanism. At the same time, the hooking mechanism drives the positioning end of the plug positioning mechanism to open and close, so that the positioning end of the plug positioning mechanism is engaged inside the connection end of the plug engaging mechanism.

[0010] Furthermore, the plug-in positioning mechanism includes a plug-in rod, which is fixedly connected to one side of the plug-in end of the terminal connector body, and positioning rods are slidably connected to both sides of the plug-in rod.

[0011] Furthermore, the mounting mechanism includes a gear, which is fixedly connected to one end of the positioning rod and rotatably connected inside the insertion rod. A bidirectional rack meshes with the surface of the gear, and the bidirectional rack is slidably connected inside the insertion rod. A spring is fixedly connected to one side of the bidirectional rack, and one end of the spring is fixedly connected inside the insertion rod.

[0012] Furthermore, the rotary locking mechanism includes a movable rod, which is fixedly connected to one end of a bidirectional rack. A fixing bolt is threaded onto the surface of the movable rod, and a fixing groove is provided on the inner wall of the plug rod, with one end of the fixing bolt engaged in the fixing groove.

[0013] Furthermore, the plug-in engagement mechanism includes a fixing plate, which is fixedly connected to one side of the terminal connector body. A positioning groove adapted to the plug-in rod is provided on one side of the fixing plate, and an engagement groove adapted to one end of the positioning rod is provided inside the fixing plate.

[0014] Furthermore, sealing rings are fixedly installed at both the insertion end and the wiring end of the terminal connector body.

[0015] Furthermore, the surface of the terminal connector body is provided with multiple guide grooves.

[0016] This utility model has the following beneficial effects:

[0017] 1. The terminal connector body inserts its wire end into the terminal connector body, so that the positioning end of the insertion positioning mechanism is inserted into the connection end of the insertion locking mechanism. At the same time, the hooking mechanism drives the positioning end of the insertion positioning mechanism to open and close, so that the positioning end of the insertion positioning mechanism is locked inside the connection end of the insertion locking mechanism. This structure achieves the core effects of precise positioning, automatic locking and anti-loosening through mechanical linkage design in the insertion process, ensuring that the connector maintains stable contact under vibration and improving insertion reliability.

[0018] 2. The positioning rod is in an open state inside the plug rod, so that one end of the positioning rod contacts and engages in the engagement groove. When the terminal connector body is pulled by external force, the positioning rod will be engaged in the engagement groove under the action of the bidirectional rack and gear. At the same time, the moving rod at one end of the bidirectional rack has already pressed against the inside of the plug rod, so that the bidirectional rack can only move in one direction. This ensures that the terminal connector body is always connected when pulled by external force. This structure achieves reliable tensile resistance under external force through mechanical linkage self-locking anti-retraction design.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the utility model embodiments, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the terminal connector body wiring terminal structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the terminal connector body insertion end structure of this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the insertion positioning mechanism and the insertion engaging mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the hanging mechanism and the rotary locking mechanism of this utility model;

[0026] Figure 6 This is a cross-sectional schematic diagram of the rotary locking mechanism of this utility model.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Terminal connector body; 2. Insertion positioning mechanism; 201. Insertion rod; 202. Positioning rod; 3. Hanging mechanism; 301. Gear; 302. Bidirectional rack; 303. Spring; 4. Insertion locking mechanism; 401. Fixing plate; 402. Positioning groove; 403. Locking groove; 5. Rotary locking mechanism; 501. Moving rod; 502. Fixing bolt; 503. Fixing groove; 6. Sealing ring; 7. Guide groove. Detailed Implementation

[0029] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.

[0030] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0031] Please see Figures 1-6 As shown, this utility model is a terminal connector for automotive wiring harnesses, including a terminal connector body 1. A insertion positioning mechanism 2 is provided on both sides of the insertion end of the terminal connector body 1. A hooking mechanism 3 is provided at the positioning end of the insertion positioning mechanism 2. A insertion locking mechanism 4 is provided on both sides of the wiring end of the terminal connector body 1. The insertion positioning mechanism 2 and the insertion locking mechanism 4 are connected to each other. A rotation locking mechanism 5 is provided at the unlocking end of the hooking mechanism 3. Sealing rings 6 are fixedly installed at both the insertion end and the wiring end of the terminal connector body 1. Multiple guide grooves 7 are formed on the surface of the terminal connector body 1.

[0032] The terminal connector body 1 inserts its wire end into the terminal connector 1, so that the positioning end of the insertion positioning mechanism 2 is inserted into the connection end of the insertion locking mechanism 4. At the same time, the hooking mechanism 3 drives the positioning end of the insertion positioning mechanism 2 to open and close, so that the positioning end of the insertion positioning mechanism 2 is locked inside the connection end of the insertion locking mechanism 4.

[0033] By loosening the fixed end of the rotary locking mechanism 5, the plug end of the terminal connector body 1 is inserted into the terminal of the terminal connector body 1. At the same time, the positioning end of the insertion positioning mechanism 2 is inserted into the connection end of the insertion engaging mechanism 4. The positioning end of the insertion positioning mechanism 2 is driven to open or close by the hooking mechanism 3, so that the positioning end of the insertion positioning mechanism 2 is engaged inside the connection end of the insertion engaging mechanism 4. Then, the fixed end of the rotary locking mechanism 5 is locked to fix the hooking mechanism 3, so that the hooking mechanism 3 fixes the positioning end of the insertion positioning mechanism 2. When it is necessary to loosen, the rotary locking mechanism 5 is loosened, and then the rotary locking mechanism 5 is displaced, so that the rotary locking mechanism 5 drives the hooking mechanism 3 to move synchronously, so that the hooking mechanism 3 drives the positioning end of the insertion positioning mechanism 2 to close. Then, the positioning end of the insertion positioning mechanism 2 is slid out of the connection end of the engaging mechanism 4.

[0034] The connector body 1 inserts its wire end into the terminal of the connector body 1, so that the positioning end of the insertion positioning mechanism 2 is inserted into the connection end of the insertion locking mechanism 4. At the same time, the hooking mechanism 3 drives the positioning end of the insertion positioning mechanism 2 to open and close, so that the positioning end of the insertion positioning mechanism 2 is locked inside the connection end of the insertion locking mechanism 4. This structure achieves the core effects of precise positioning, automatic locking and anti-loosening through mechanical linkage design during the insertion process, ensuring that the connector maintains stable contact under vibration or external force pulling, and improving the insertion reliability.

[0035] In addition, the sealing ring 6 can ensure the sealing of the terminal connector body 1 and prevent water from seeping into the connection of the terminal connector body 1. Through multiple guide grooves 7 on the surface of the terminal connector body 1, water on the surface of the terminal connector body 1 is discharged to prevent water from adhering to its surface.

[0036] In one embodiment, the above-mentioned plug-in positioning mechanism 2 includes a plug-in rod 201, which is fixedly connected to one side of the plug-in end of the terminal connector body 1, and positioning rods 202 are slidably connected to both sides of the plug-in rod 201.

[0037] Insert the plug rod 201 into the plug-in engagement mechanism 4. The positioning rod 202 slides on both sides of the plug rod 201, so that the positioning rod 202 opens or closes to engage inside the plug-in engagement mechanism 4.

[0038] In one embodiment, the above-mentioned hooking mechanism 3 includes a gear 301, which is fixedly connected to one end of the positioning rod 202 and rotatably connected inside the insertion rod 201. A bidirectional rack 302 meshes with the surface of the gear 301 and is slidably connected inside the insertion rod 201. A spring 303 is fixedly connected to one side of the bidirectional rack 302 and one end of the spring 303 is fixedly connected inside the insertion rod 201.

[0039] The spring 303 drives the bidirectional rack 302 to slide inside the connector rod 201, causing the bidirectional rack 302 to drive the gear 301 to rotate inside the connector rod 201. When the gear 301 rotates, it drives the positioning rod 202 to move. When the spring 303 is compressed, the bidirectional rack 302 drives the gear 301 to drive the positioning rod 202 to be in a closed state inside the connector rod 201. When the spring 303 is released, the bidirectional rack 302 drives the gear 301 to drive the positioning rod 202 to be in an open state inside the connector rod 201.

[0040] In one embodiment, the rotary locking mechanism 5 includes a moving rod 501, which is fixedly connected to one end of the bidirectional rack 302. A fixing bolt 502 is threadedly connected to the surface of the moving rod 501. A fixing groove 503 is provided inside the plug rod 201, and one end of the fixing bolt 502 is engaged in the fixing groove 503.

[0041] By rotating the fixing bolt 502, the fixing bolt 502 moves on the surface of the moving rod 501, causing one end of the fixing bolt 502 to be movably engaged in the fixing groove 503, thus fixing the moving rod 501 and simultaneously fixing the bidirectional rack 302. When it is necessary to move the bidirectional rack 302 to compress the spring 303, the fixing bolt 502 is loosened, causing the fixing bolt 502 to disengage from the fixing groove 503. Then, the moving rod 501 is slid, causing the moving rod 501 to drive the bidirectional rack 302 to compress the spring 303 inside the plug rod 201.

[0042] In one embodiment, the above-mentioned plug-in engagement mechanism 4 includes a fixing plate 401, which is fixedly connected to one side of the terminal connector body 1. A positioning groove 402 adapted to the plug-in rod 201 is provided on one side of the fixing plate 401, and an engagement groove 403 adapted to one end of the positioning rod 202 is provided inside the fixing plate 401.

[0043] By inserting the plug rod 201 into the positioning groove 402, the positioning rod 202 is opened, and one end of the positioning rod 202 contacts and engages in the engaging groove 403, thereby fixing the plug rod 201 and the positioning rod 202.

[0044] Through the above technical solution, 1. The plug end of the terminal connector body 1 is inserted into the terminal of the terminal connector body 1, and at the same time, the plug rod 201 is driven to insert into the positioning groove 402 on one side of the fixing plate 401. The spring 303 drives the bidirectional rack 302 to slide inside the plug rod 201. The bidirectional rack 302 drives the gear 301 to drive the positioning rod 202 to be in an open state inside the plug rod 201, so that one end of the positioning rod 202 contacts and engages in the engaging groove 403, thereby fixing the plug rod 201 and the positioning rod 202. The fixing bolt 502 is rotated to move the fixing bolt 502 on the surface of the moving rod 501, so that one end of the fixing bolt 502 is movably engaged in the fixing groove 503, thereby fixing the moving rod 501 and fixing the bidirectional rack 302, thus completing the plugging and fixing of the terminal connector body 1.

[0045] 2. The positioning rod 202 is in an open state inside the plug rod 201, so that one end of the positioning rod 202 contacts and engages in the engagement groove 403. When the terminal connector body 1 is pulled by an external force, the positioning rod 202 will be engaged in the engagement groove 403 under the action of the bidirectional rack 302 and the gear 301. The moving rod 501 at one end of the bidirectional rack 302 has already pressed against the inside of the plug rod 201, so that the bidirectional rack 302 can only move in one direction, so that the terminal connector body 1 is always in the connected state when pulled by an external force. This structure achieves reliable tensile resistance under the action of external force through mechanical linkage self-locking anti-retraction design.

[0046] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The preferred embodiments of the utility model disclosed above are merely illustrative of the utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the utility model, thereby enabling those skilled in the art to better understand and utilize it. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A terminal connector for automotive wiring harnesses, comprising a terminal connector body (1), characterized in that, The terminal connector body (1) is provided with a plug-in positioning mechanism (2) on both sides of the plug-in end, and a hook-up mechanism (3) is provided at the positioning end of the plug-in positioning mechanism (2). The terminal connector body (1) is provided with a plug-in locking mechanism (4) on both sides of the wire end. The plug-in positioning mechanism (2) and the plug-in locking mechanism (4) are connected to each other. The hook-up mechanism (3) is provided with a rotation locking mechanism (5) at the unlocking end. The terminal connector body (1) inserts its plug end into the terminal connector body (1) so that the positioning end of the plug positioning mechanism (2) is inserted into the connection end of the plug engaging mechanism (4). At the same time, the hooking mechanism (3) drives the positioning end of the plug positioning mechanism (2) to open and close, so that the positioning end of the plug positioning mechanism (2) is engaged inside the connection end of the plug engaging mechanism (4).

2. The automotive wiring harness terminal connector according to claim 1, characterized in that, The plug-in positioning mechanism (2) includes a plug-in rod (201), which is fixedly connected to the plug end of the terminal connector body (1), and positioning rods (202) are slidably connected to both sides of the plug-in rod (201).

3. An automotive wiring harness terminal connector according to claim 2, wherein The hooking mechanism (3) includes a gear (301), which is fixedly connected to one end of the positioning rod (202). The gear (301) is rotatably connected inside the plug rod (201). A bidirectional rack (302) meshes with the surface of the gear (301). The bidirectional rack (302) is slidably connected inside the plug rod (201). A spring (303) is fixedly connected to one side of the bidirectional rack (302). One end of the spring (303) is fixedly connected inside the plug rod (201).

4. An automotive wiring harness terminal connector according to claim 3, wherein The rotary locking mechanism (5) includes a movable rod (501), which is fixedly connected to one end of a bidirectional rack (302). A fixing bolt (502) is threaded onto the surface of the movable rod (501). A fixing groove (503) is provided inside the plug rod (201), and one end of the fixing bolt (502) is engaged in the fixing groove (503).

5. The terminal connector for an automotive wiring harness according to claim 2, wherein The plug-in engagement mechanism (4) includes a fixing plate (401), which is fixedly connected to one side of the terminal connector body (1). A positioning groove (402) adapted to the plug-in rod (201) is provided on one side of the fixing plate (401), and an engagement groove (403) adapted to one end of the positioning rod (202) is provided inside the fixing plate (401).

6. The terminal connector for an automotive wiring harness according to claim 1, wherein Both the insertion end and the wiring end of the terminal connector body (1) are fixedly installed with sealing rings (6).

7. The terminal connector for an automotive wiring harness according to claim 1, wherein The terminal connector body (1) has multiple guide grooves (7) on its surface.

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