Miniaturized waterproof connector

Abstract

The utility model discloses a miniaturized waterproof connector relates to connector technical field, solved the electric motor car connector of prior art easy to occur PIN, the problem of not waterproof. The utility model discloses a pin sheath assembly and the socket sheath assembly of setting on pin sheath assembly, be equipped with the sealing ring and the protective structure for preventing PIN of PIN sheath cooperation on socket sheath assembly. The socket sheath assembly has the sealing ring and realizes the sealing between the connector, and the nose structure of socket sheath has the guardrail protection, prevents the connector misunlocking, improves the reliability of controller and wire harness connection, the pin sheath is divided into 6P, 16P and 8P three adjacent frame mouth, prevents the frame mouth too long and leads to easy deformation, shortens the connector length simultaneously, realizes the miniaturization of connector, and the end and board end pass through the mistake proof structure mistake proof of PLR structure and the two sides asymmetrical distribution of pin sheath, and the distribution of long side two sides ensures that the connector misloading will not be inclined and top to the terminal.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a connector used in electric vehicle controllers. Background Technology

[0002] With the development of the electric vehicle industry, new requirements have been placed on the functionality and reliability of electric vehicles. Electric vehicles operate in complex environments, frequently facing harsh conditions such as dust and moisture. Traditional connectors often lack adequate waterproof and dustproof designs. When driving in rainy weather or on muddy roads, water and dust can easily enter the connector, leading to poor contact. For example, in the plug and socket sections of a wire harness connector, if the seal is poor, moisture can enter and form an electrolyte solution at the metal contact points, accelerating metal oxidation and corrosion, thus shortening the connector's lifespan.

[0003] Existing technology, such as the Chinese invention patent with publication number CN117855945A, discloses a multi-wire hybrid waterproof connector with an anti-bend pin clip. This connector includes a plug sheath assembly and a socket sheath assembly that are interlocked. The plug sheath assembly includes a plug sheath with an anti-bend pin clip detachably connected to it. The socket sheath assembly includes a socket sheath with a PLR structure detachably connected to it. The anti-bend pin clip is detachably connected to the PLR ​​structure. While this patent provides position locking between the clip and the sheath by engaging with the terminal hole of the sheath, preventing the plug end from failing to seal due to the added engagement structure, and protects the plug terminals during connector mating to ensure accurate terminal positioning, and the PLR ​​structure moves the anti-bend pin clip from the assembly position to the pre-installed position during connector separation, this patent's connector plug and socket cannot effectively prevent moisture ingress. To improve the reliability of the controller and wiring harness connection, this application designs a miniaturized waterproof connector. Utility Model Content

[0004] To address the shortcomings in the aforementioned background technology, this utility model proposes a miniaturized waterproof connector, which solves the problem of PIN slippage and lack of waterproofing in existing electric vehicle connectors.

[0005] The technical solution of this utility model is implemented as follows: a miniaturized waterproof connector includes a pin sleeve assembly and a socket sleeve assembly disposed on the pin sleeve assembly. The socket sleeve assembly is provided with a sealing ring that mates with the pin sleeve and a protective structure for preventing pin ejection.

[0006] More preferably, the socket sheath assembly is a six-wire socket sheath assembly and / or a sixteen-wire socket sheath assembly and / or an eight-wire socket sheath assembly.

[0007] More preferably, the socket housing assembly includes a socket housing, on which a PLR structure is provided, and a sealing ring is fitted on the socket housing and located between the PLR ​​structure and the socket housing.

[0008] More preferably, the socket sheath is provided with a hook that cooperates with the protective structure, and the hook engages with a protrusion on the pin sheath assembly.

[0009] More preferably, the protective structure is a guardrail structure, which is a U-shaped plate, with both ends of the U-shaped plate connected to the socket sleeve.

[0010] More preferably, the guardrail structure has an extension on the side facing the socket sleeve, an arc-shaped groove on the other side of the guardrail structure, and a chamfer for transition between the guardrail structure and the extension.

[0011] In a further preferred embodiment, the socket sheath is also provided with a sheath spring, which cooperates with the limiting rib provided on the PLR ​​structure.

[0012] More preferably, one side of the socket sheath is provided with a cavity for preventing misassembly between the socket sheath and the PLR ​​structure, and the cavity cooperates with the assembly error prevention structure provided on the PLR ​​structure.

[0013] More preferably, the socket sleeve has a sleeve terminal hole that mates with the terminal, and the sleeve terminal hole has an anti-misinstallation structure to prevent the terminal from being installed incorrectly.

[0014] More preferably, the PLR ​​structure has an outer wall of a terminal hole to prevent terminal shaking. The PLR ​​structure also has a repair hole and an anti-misalignment groove. The repair hole and anti-misalignment groove on both sides of the PLR ​​structure are asymmetrically designed to prevent incorrect installation.

[0015] The beneficial effects of this utility model are as follows: The socket sleeve assembly of this utility model has a sealing ring to achieve sealing between connectors; the hanging nose structure of the socket sleeve has a guardrail to prevent connector mis-locking and improve the reliability of controller and wire harness connection; the pin sleeve is divided into three adjacent frame openings of 6P, 16P and 8P to prevent the frame opening from being too long and causing easy deformation, while shortening the connector length and realizing connector miniaturization; the wire end and board end are protected by the error-proof structure asymmetrically distributed on both sides of the PLR ​​and pin sleeve, and the distribution on both sides of the long side ensures that the connector will not tilt and hit the terminal when misinstalled; the PLR ​​and the sleeve have an error-proof structure added on one side to ensure that the assembly direction is unique; the socket sleeve has a PLR with a pre-installed position, and the PLR ​​side opening design ensures that the PLR ​​can form a complete square cavity of the terminal with the sleeve in the pre-installed position, reducing terminal shaking, and does not affect terminal rework; the socket sleeve cavity hole has an error-proof groove added in the middle of the base of the spring tongue, and the straight-face fit of the error-proof groove ensures reliable error prevention between the terminal and the sleeve. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is an exploded view of the socket sheath assembly of this utility model;

[0019] Figure 3 A partial view of the socket sheath mounting structure;

[0020] Figure 4 Assembly drawing of the socket housing assembly;

[0021] Figure 5 A sectional view of the terminal assembly;

[0022] Figure 6 This is a schematic diagram of the final section cut of the PLR.

[0023] In the diagram: 1. Pin sheath assembly; 2. Six-wire socket sheath assembly; 3. Sixteen-wire socket sheath assembly; 4. Eight-wire socket sheath assembly; 3-1. Socket sheath; 3-1-1. Cavity; 3-1-2. Sheath spring; 3-1-3. Hanger; 3-1-4. Sheath guardrail; 3-1-41. Extension; 3-1-42. Arc-shaped groove; 3-1-43. Chamfer; 3-1-5. Error-proof structure; 3-2. Sealing ring; 3-3. PLR structure; 3-3-1. Error-proof rib; 3-3-2. Error-proof groove; 3-3-3. Repair hole; 3-3-4. Assembly error-proof structure; 3-3-5. Terminal hole outer wall; 5. Terminal; 5-1. Terminal error-proof structure. Detailed Implementation

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

[0025] like Figure 1 and Figure 2As shown in Embodiment 1, a miniaturized waterproof connector includes a pin sleeve assembly 1 and a socket sleeve assembly disposed on the pin sleeve assembly 1. The socket sleeve assembly is provided with a sealing ring 3-2 that mates with the pin sleeve and a protective structure for preventing pin ejection. The socket sleeve assembly is a six-wire socket sleeve assembly 2 and / or a sixteen-wire socket sleeve assembly 3 and / or an eight-wire socket sleeve assembly 4. The pin sleeve assembly 1 is provided with any one or more combinations of the six-wire socket sleeve assembly 2, the sixteen-wire socket sleeve assembly 3, and the eight-wire socket sleeve assembly 4, which can effectively prevent deformation caused by excessive frame length, while shortening the connector length and achieving connector miniaturization. The socket sleeve assembly has a sealing ring 3-2 to achieve sealing between the connectors, and the hook 3-1-3 structure of the socket sleeve 3-1 has a guardrail protection to prevent mis-locking of the connector. This device fulfills the functions of preventing misinstallation, preventing terminal dislocation, and waterproofing the connector. It solves the problems of easy pin dislocation and lack of waterproofing in electric vehicle connectors. At the same time, it reduces the size of the connector, meets the requirements of small size and low cost for electric vehicle connectors, and helps to increase the product's market share.

[0026] like Figure 2 As shown in Embodiment 2, a miniaturized waterproof connector includes a socket housing assembly comprising a socket housing 3-1, a PLR structure 3-3 on the socket housing 3-1, and a sealing ring 3-2 fitted onto the socket housing 3-1 and located between the PLR ​​structure 3-3 and the socket housing 3-1. The sealing ring 3-2 ensures the sealing of the connection between the PLR ​​structure 3-3 and the socket housing 3-1; the outer wall of the sealing ring 3-2 has at least three annular protrusions to ensure sealing when the socket housing assembly and the pin housing assembly 1 are installed together.

[0027] like Figure 3As shown, in this embodiment, the socket sleeve 3-1 is provided with a hook 3-1-3 that mates with the protective structure. The hook 3-1-3 engages with a protrusion on the pin sleeve assembly 1. The hook 3-1-3 has an H-shaped cross-section, and the hook hole on the hook 3-1-3 engages with the protrusion on the pin sleeve assembly 1, allowing the socket sleeve assembly to be hooked onto the pin sleeve assembly 1. The protective structure is a sleeve guardrail 3-1-4, which is a U-shaped plate with both ends connected to the socket sleeve 3-1. The sleeve is designed with a hooking structure to achieve a snap-fit ​​connection with the plate end, and the sleeve guardrail 3-1-4 is designed to protect the hook 3-1-3 from damage by external forces. The protective sleeve 3-1-4 protects the outside of the connector nose 3-1-3 to prevent accidental contact during use that could cause the socket housing assembly to detach from the pin housing assembly 1, thus avoiding pin ejection. The protective sleeve 3-1-4 has an extension 3-1-41 on the side facing the socket housing 3-1, and an arc-shaped groove 3-1-42 on the other side. The arc-shaped groove 3-1-42 facilitates pressing the connector nose 3-1-3 and allows for easy assembly and disassembly. A chamfer 3-1-43 is provided between the protective sleeve 3-1-4 and the extension 3-1-41 for transition. The extension 3-1-41 protects the mating area between the connector nose 3-1-3 and the pin housing assembly 1, further ensuring the protective effect of the protective sleeve 3-1-4. The protective guardrail extends forward to form an extension 3-1-41, protecting the hook 3-1-3 and preventing it from flipping and breaking due to external force; an arc-shaped notch is added to the rear end of the guardrail for more comfortable pressing and unlocking; a large chamfer 3-1-43 is added to the side to increase the connecting area and ensure the strength of the guardrail itself.

[0028] All other structures are the same as in Example 1.

[0029] like Figure 2 and Figure 5 As shown in Embodiment 3, a miniaturized waterproof connector is provided. The socket sleeve 3-1 is further provided with a sleeve spring 3-1-2, which cooperates with the limiting rib provided on the PLR ​​structure 3-3. Limiting ribs are designed on both sides of the PLR ​​repair hole 3-3-3. When the terminal is not assembled in place, the sleeve spring 3-1-2 tilts back and interferes with the limiting rib. When the PLR ​​is assembled to the final position, the limiting rib engages with the sleeve spring 3-1-2, providing a secondary lock for the terminal.

[0030] like Figure 4As shown, in this embodiment, one side of the socket sleeve 3-1 is further provided with a cavity 3-1-1 to prevent misassembly of the socket sleeve 3-1 and the PLR ​​structure 3-3. The cavity 3-1-1 cooperates with the assembly error prevention structure 3-3-4 provided on the PLR ​​structure 3-3. An error prevention structure 3-1-5 is added to one side of the PLR ​​structure 3-3 and the sleeve to ensure a unique assembly direction. A portion of the cavity 3-1-1 is cut off on one side of the sleeve to cooperate with the assembly error prevention structure 3-3-4 of the PLR. The PLR ​​has asymmetrically arranged error prevention ribs 3-3-1 and error prevention grooves 3-3-2 that cooperate with the plate end error prevention ribs 3-3-1 to prevent misassembly. An error prevention structure 3-1-5 is designed inside the terminal hole of the sleeve. The beveled surfaces on both sides ensure that the terminal can be smoothly inserted. The straight groove in the middle cooperates with the terminal error prevention structure 5-1 to ensure reliable error prevention when the terminal is misassembled. The socket sleeve 3-1 has a mounting chamber that mates with the terminals. The mounting chamber has an anti-misinstallation structure 3-1-5 to prevent incorrect terminal installation. The wire end and board end are protected against misinstallation by the PLR ​​structure 3-3 and the anti-misinstallation structures 3-1-5 asymmetrically distributed on both sides of the pin sleeve. The distribution on both sides of the long side ensures that the connector will not tilt and hit the terminals when misinstalled.

[0031] like Figure 5 and Figure 6 As shown, in this embodiment, the PLR ​​structure 3-3 has an outer wall 3-3-5 for preventing terminal wobbling, and a repair hole 3-3-3 and an anti-misalignment groove 3-3-2 on the PLR ​​structure 3-3. The sheath terminal holes are symmetrically designed. When the PLR ​​is in the pre-installed position, the terminal 5 is inserted. The outer wall 3-3-5 of the terminal hole on the PLR ​​structure prevents terminal wobbling, and the repair hole 3-3-3 on the PLR ​​facilitates terminal repair. The socket sheath 3-1 has a PLR structure 3-3 with a pre-installed position. The side window design of the PLR ​​structure 3-3 ensures that the PLR ​​structure 3-3 can form a complete square cavity for the terminal with the sheath in the pre-installed position, reducing terminal wobbling and not affecting terminal repair. The cavity 3-1-1 hole of the socket sheath 3-1 has an anti-misalignment groove 3-3-2 added in the middle of the base of the spring tongue. The straight fit of the anti-misalignment groove 3-3-2 ensures reliable anti-misalignment between the terminal and the sheath.

[0032] All other structures are the same as in Example 2.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A miniaturized waterproof connector, characterized in that: It includes a pin sleeve assembly (1) and a socket sleeve assembly disposed on the pin sleeve assembly (1). The socket sleeve assembly is provided with a sealing ring (3-2) that mates with the pin sleeve and a protective structure for preventing pin ejection.

2. The miniaturized waterproof connector according to claim 1, characterized in that: The socket sheath assembly is a six-wire socket sheath assembly (2) and / or a sixteen-wire socket sheath assembly (3) and / or an eight-wire socket sheath assembly (4).

3. The miniaturized waterproof connector according to claim 1 or 2, characterized in that: The socket housing assembly includes a socket housing (3-1), on which a PLR structure (3-3) is provided, and a sealing ring (3-2) is fitted on the socket housing (3-1) and located between the PLR ​​structure (3-3) and the socket housing (3-1).

4. The miniaturized waterproof connector according to claim 3, characterized in that: The socket sheath (3-1) is provided with a hook (3-1-3) that cooperates with the protective structure. The hook (3-1-3) is engaged with the protrusion on the pin sheath assembly (1).

5. The miniaturized waterproof connector according to claim 4, characterized in that: The protective structure is a protective sleeve and guardrail (3-1-4), which is a U-shaped plate with both ends connected to the socket sleeve (3-1).

6. The miniaturized waterproof connector according to claim 5, characterized in that: The sheath guardrail (3-1-4) has an extension (3-1-41) on the side facing the socket sheath (3-1), and an arc-shaped groove (3-1-42) on the other side. A chamfer (3-1-43) is provided between the sheath guardrail (3-1-4) and the extension (3-1-41) for transition.

7. The miniaturized waterproof connector according to claim 5 or 6, characterized in that: The socket sleeve (3-1) is also provided with a sleeve spring (3-1-2), which cooperates with the limiting rib provided on the PLR ​​structure (3-3).

8. The miniaturized waterproof connector according to claim 7, characterized in that: The socket sleeve (3-1) is also provided with a cavity (3-1-1) on one side to prevent the socket sleeve (3-1) from being mis-installed with the PLR ​​structure (3-3). The cavity (3-1-1) cooperates with the assembly error prevention structure (3-3-4) provided on the PLR ​​structure (3-3).

9. The miniaturized waterproof connector according to claim 8, characterized in that: The socket sleeve (3-1) has a sleeve terminal hole that mates with the terminal, and the sleeve terminal hole has an anti-misinstallation structure (3-1-5) to prevent the terminal from being installed incorrectly.

10. The miniaturized waterproof connector according to claim 8 or 9, characterized in that: The PLR ​​structure (3-3) has an outer wall (3-3-5) for preventing terminal shaking, and the PLR ​​structure (3-3) has a repair hole (3-3-3) and an anti-misalignment groove (3-3-2).

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