A connector with a locking structure

Abstract

The utility model discloses a connector with locking structure, this connector with locking structure includes main part, inner card, front sealing element, the inside both sides of inner card upper and lower respectively are equipped with second clamping groove, first clamping groove, the both sides of main part are equipped with with first clamping groove, second clamping groove cooperation's lock catch, the lock catch is set in second clamping groove, is used for making main part with inner card connection fixed, the upper and lower of main part is equipped with a plurality of elastic card tongue, and acts on the inner end surface of inner card, the front sealing element is set with the outer wall of main part. Through lock catch and second clamping groove cooperation and elastic card tongue provide additional frictional resistance, form double locking mechanism, prevent slipping off, and the front sealing element is filled with the gap by extrusion deformation, and the annular flange of rear sealing element is closely in abutment with inner wall, and sets up waterproof layer, constitutes multiple sealing barrier, effectively blocks rainwater, water vapor and chemical medium penetration, avoids short circuit, promotes vehicle circuit system long -term stability and security.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector with a locking structure. Background Technology

[0002] A connector is a component that connects active devices and transmits current or signals. It is widely used in production and daily life. Its structure includes a plastic connector body and metal pins. The pins cooperate with the body through the socket, with both ends extending to the outside and the middle fixed to the connector body.

[0003] Existing automotive connectors are prone to aging of plastic components during long-term use, leading to unstable connections and slippage. In addition, automotive connectors mostly rely on rubber waterproof gaskets or waterproof rings for sealing, but these are subject to thermal cycling, mechanical vibration, rainwater, and chemical corrosion during vehicle operation, which can easily cause polymer chain breakage, resulting in a decrease in elastic modulus and a drop in interface sealing pressure, thereby losing waterproof performance and affecting the stability and safety of the vehicle's electrical system. The applicant has made beneficial designs to address the above problems and proposed an improvement solution. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of traditional connector designs and provide a product that enhances connection stability, improves waterproof performance, and enhances operational stability and safety.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A connector with a locking structure includes a main body, an inner clip, and a front seal. The inner clip has a second slot and a first slot on its upper and lower sides, respectively. The main body has latches on both sides that mate with the first and second slots. The latches are engaged in the second slots to connect and fix the main body to the inner clip. The main body has multiple elastic latches at its upper and lower sides that act on the inner end face of the inner clip. The front seal is fitted onto the outer wall of the main body and is located between the main body and the inner clip. The rear of the main body has a rear seal with multiple first insertion holes penetrating its thickness. A waterproof layer is provided inside the first insertion holes. The outer wall of the rear seal has a sealing flange that abuts against the inner wall of the main body.

[0007] Preferably, the first slot has inclined first guide surfaces on both sides.

[0008] Preferably, the latch is provided with a second guide surface that cooperates with the first guide surface.

[0009] Preferably, the inner card has a second insertion hole corresponding to the first insertion hole, and the inner card has a limiting groove for accommodating the card tongue at the end entrance opposite to the second slot.

[0010] Preferably, the main body is provided with a plurality of wiring terminals and is directly opposite the second socket, the latch extends to provide a stop portion and is located behind the wiring terminals, and the outer wall of the main body is provided with an annular boss portion.

[0011] Preferably, the front seal is disposed between the boss and the inner clip, and the outer wall of the front seal is provided with annular first pressure-bearing sealing part and second pressure-bearing sealing part at the front and rear positions.

[0012] Preferably, the first insertion hole has necking holes at both ends, and the waterproof layer is disposed between the necking holes.

[0013] Beneficial effects:

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] (1) The locking and positioning of the main body and the inner card are achieved by the cooperation of the latch and the second slot. At the same time, the multiple elastic tongues at the end of the main body act on the inner end face of the inner card to provide additional frictional resistance, forming a double locking mechanism, which effectively enhances the connection stability and prevents the connector from slipping and failing under long-term use or vibration conditions.

[0016] (2) The front seal is assembled and squeezed between the inner card and the main body and is deformed to fill the gap. The annular sealing flange of the outer wall of the rear seal is tightly abutted against the inner wall of the main body. A waterproof layer is set in the first insertion hole of the rear seal. Together, they form a multi-layer sealing barrier, which can effectively prevent external rainwater, water vapor and chemical media from penetrating into the terminal area, avoid short circuit, and significantly improve the long-term stability and operational safety of the vehicle's electrical system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a connector structure with a locking mechanism according to the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of a connector with a locking structure according to the present invention.

[0019] Figure 3 This is a side cross-sectional view of a connector with a locking structure according to the present invention.

[0020] Figure 4 This is an exploded structural diagram of a connector with a locking structure according to the present invention.

[0021] The correspondence between the labels and component names in the attached figures is as follows:

[0022] Reference numerals: 1. Main body; 2. Inner clip; 3. Front seal; 4. Rear seal; 5. Waterproof layer; 6. Terminal block; 11. Locking buckle; 12. Tongue; 13. Boss; 111. Second guide surface; 121. Anti-reverse part; 21. First slot; 22. Second slot; 23. First guide surface; 24. Second insertion hole; 25. Limiting groove; 31. First pressure-bearing sealing part; 32. Second pressure-bearing sealing part; 41. First insertion hole; 42. Sealing flange; 43. Necked hole. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0025] In this embodiment of the utility model, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0026] Reference example Figures 1 to 4 A connector with a locking structure includes a main body 1, an inner card 2, and a front seal 3. The inner card 2 has a second card groove 22 and a first card groove 21 on its upper and lower sides respectively. The main body 1 has a latch 11 on both sides that cooperates with the first card groove 21 and the second card groove 22. The latch 11 is engaged in the second card groove 22 to connect and fix the main body 1 and the inner card 2. The upper and lower parts of the main body 1 have multiple elastic latches 12 that act on the inner end face of the inner card 2. The front seal 3 is sleeved on the outer wall of the main body 1 and is located between the main body 1 and the inner card 2. The tail of the main body 1 has a rear seal 4. The rear seal 4 has multiple first insertion holes 41 that penetrate its thickness. The first insertion holes 41 have a waterproof layer 5. The outer wall of the rear seal 4 has a sealing flange 42 that abuts against the inner wall of the main body 1.

[0027] The locking and positioning of the main body 1 and the inner card 2 are achieved by the cooperation of the latch 11 and the second card slot 22. At the same time, the multiple elastic latches 12 at the end of the main body 1 act on the inner end face of the inner card 2 to provide additional frictional resistance, forming a double locking mechanism, which effectively enhances the connection stability and prevents the connector from slipping and failing under long-term use or vibration conditions.

[0028] The front seal 3, which is assembled and squeezed between the inner card 2 and the main body 1 and is fitted onto the outer wall of the main body 1, deforms and fills the gap. The annular sealing flange 42 on the outer wall of the rear seal 4 is tightly abutted against the inner wall of the main body 1. A waterproof layer 5 is set in the first insertion hole 41 of the rear seal 4. Together, they form a multi-layer sealing barrier, which can effectively prevent external rainwater, water vapor and chemical media from penetrating into the terminal 6 area, avoid short circuits, and significantly improve the long-term stability and operational safety of the vehicle's electrical system.

[0029] It is worth mentioning that the first slot 21 has inclined first guide surfaces 23 on both sides. The first guide surfaces 23 guide the latch 11 into or out of the first slot 21. The first slot 21 serves as a pre-locking function, which facilitates the second locking and positioning in the assembly process.

[0030] It is worth mentioning that the latch 11 is provided with a second guide surface 111 that cooperates with the first guide surface 23. The second guide surface 111 reduces the moving resistance of the latch 11 in the first slot 21 and ensures smooth assembly.

[0031] It is worth mentioning that the inner card 2 is provided with a second insertion hole 24 corresponding to the first insertion hole 41. The inner card 2 is provided with a limiting groove 25 for accommodating the card tongue 12 at the end entrance opposite to the second slot. The second insertion hole 24 is electrically connected to the pin of the power supply device and the terminal 6.

[0032] It is worth mentioning that the main body 1 is provided with multiple wiring terminals 6 and is directly opposite the second socket 24. The latch 12 extends with a stop part 121 and is located behind the wiring terminals 6. The outer wall of the main body 1 is provided with an annular boss part 13. The stop part 121 prevents the wiring terminals 6 from being displaced too much during the electrical connection process. The boss part 13 provides support for the front seal 3.

[0033] It is worth mentioning that the front seal 3 is located between the boss 13 and the inner clip 2. The front seal 3 has annular first pressure-bearing sealing part 31 and second pressure-bearing sealing part 32 at the front and rear positions of its outer wall. When the connector is inserted into the corresponding joint, the joint is sleeved on the outer wall of the connector, and the first pressure-bearing sealing part 31 and the second pressure-bearing sealing part 32 are squeezed inward, which makes the front seal 3 more tightly connected with the main body 1 and the inner clip 2, thereby improving the sealing performance. This structural design also enhances the overall vibration resistance of the connector, ensuring that reliable sealing and stable connection are maintained under complex working conditions.

[0034] It is worth mentioning that the first socket 41 has necked holes 43 at both ends, and the waterproof layer 5 is set between the necked holes 43. The diameter of the necked holes 43 is smaller than that of the first socket 41. When the pin is inserted into the first socket 41 and punctures the waterproof layer 5, the unpunctured part still maintains its waterproof performance, effectively preventing external rainwater, water vapor and chemical media from penetrating into the terminal 6 area. The pin and the necked holes 43 form an interference fit to enhance the sealing effect. The waterproof layer 5 can be made of TPU (thermoplastic polyurethane) or EPDM (ethylene propylene diene monomer rubber), which has excellent weather resistance and anti-aging properties, ensuring stable waterproof performance during long-term use.

[0035] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. A connector with a locking structure, comprising a main body (1), an inner clip (2), and a front seal (3), characterized in that: The inner card (2) has a second card slot (22) and a first card slot (21) on its inner sides. The main body (1) has a latch (11) on its sides that cooperates with the first card slot (21) and the second card slot (22). The latch (11) is engaged in the second card slot (22) to connect and fix the main body (1) and the inner card (2). The main body (1) has multiple elastic latches (12) on its upper and lower sides, which act on the inner end face of the inner card (2). The front seal (3) is fitted onto the outer wall of the main body (1) and is located between the main body (1) and the inner card (2). The tail of the main body (1) has a rear seal (4). The rear seal (4) has multiple first insertion holes (41) that penetrate its thickness. The first insertion hole (41) has a waterproof layer (5). The outer wall of the rear seal (4) has a sealing flange (42) that abuts against the inner wall of the main body (1).

2. The connector with a locking structure according to claim 1, characterized in that: The first card slot (21) has inclined first guide surfaces (23) on both sides.

3. The connector with a locking structure according to claim 2, characterized in that: The latch (11) is provided with a second guide surface (111) that cooperates with the first guide surface (23).

4. The connector with a locking structure according to claim 1, characterized in that: The inner card (2) is provided with a second insertion hole (24) corresponding to the first insertion hole (41), and the inner card (2) is provided with a limiting groove (25) for accommodating the card tongue (12) at the end entrance opposite to the second slot.

5. The connector with a locking structure according to claim 4, characterized in that: The main body (1) is provided with multiple wiring terminals (6) and is directly opposite the second socket (24). The latch (12) extends and is provided with a stop part (121) and is located behind the wiring terminals (6). The outer wall of the main body (1) is provided with an annular boss part (13).

6. The connector with a locking structure according to claim 5, characterized in that: The front seal (3) is disposed between the boss (13) and the inner clip (2), and the front and rear positions of the outer wall of the front seal (3) are provided with annular first pressure-bearing sealing part (31) and second pressure-bearing sealing part (32).

7. The connector with a locking structure according to claim 1, characterized in that: The first insertion hole (41) has necking holes (43) at both ends, and the waterproof layer (5) is disposed between the necking holes (43).

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