Short waterproof female head structure

By employing a combined structure of outer shell, insertion sleeve, and inner conductor in the automotive connector female head, along with a double-layer waterproof ring and heat-shrink tubing, the problem of insufficient waterproofing is solved, achieving higher sealing performance and a longer service life.

CN224153661UActive Publication Date: 2026-04-21DONGGUAN JINGYIDA ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN JINGYIDA ELECTRONIC TECH CO LTD
Filing Date
2025-05-12
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing automotive connector female head structure has poor waterproofing, allowing water to easily enter and affect the normal operation of internal components.

Method used

It adopts a combined structure of outer shell, plug sleeve, waterproof components and inner conductor, and uses the design of double waterproof ring and heat shrink tubing to enhance the sealing performance, especially the waterproof effect between plug sleeve and outer shell and inner conductor.

Benefits of technology

It significantly improves the waterproof performance of the female connector, extends its service life, and reduces the overall cost. Its simple structure makes it easy to promote and use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a short body waterproof female joint structure, relates to the automobile connector technology field, and comprises an outer shell, a plug sleeve, a waterproof assembly and an inner conductor, the plug sleeve is arranged in the outer shell, the waterproof assembly is arranged at the end portion of the plug sleeve, a first waterproof ring is arranged between the plug sleeve and the outer shell, and the inner conductor is arranged in the outer shell. An inner conductor is installed in the plugging sleeve, a second waterproof ring is installed between the inner conductor and the plugging sleeve, the waterproof assembly comprises a heat-shrinkable sleeve installed on the outer wall of one end of the plugging sleeve, and the heat-shrinkable sleeve is of a double-layer waterproof structure composed of an outer heat-shrinkable sleeve and an inner heat-shrinkable sleeve. An assembling opening is formed in the end wall of the outer shell, and three sets of clamping blocks which are annularly distributed at intervals are installed on the outer wall of the assembling opening. The problems that an existing connector female head structure is poor in waterproof performance, water easily enters the female head, and adverse effects are caused to internal parts are solved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive connector technology, specifically a short-body waterproof female connector structure. Background Technology

[0002] Automotive connectors are components frequently encountered by electronic engineers. Their core function is to bridge gaps in circuits or connect isolated circuits, allowing current to flow and enabling the circuit to perform its intended function. They are widely used in automotive electrical systems. The female connector refers to the female end or slot portion of the connector, which has internal holes or slots designed to receive the protruding contact points of the male connector, thus forming a mating connection and ensuring good contact and connection between the two.

[0003] For example, publication number CN220324780U, entitled "A Female Connector for Automobiles," includes a female connector, a protective housing, a female connector body, and a snap-fit ​​plate. The protective housing has a loading cavity; the female connector body is slidably installed within the loading cavity, sliding axially along the loading cavity, with one end being a plug-in end; the protective housing has an adjustment port, and one end of the snap-fit ​​plate passes through the adjustment port and is installed within the loading cavity, preventing the female connector body from sliding axially along the loading cavity. Therefore, this female connector for automobiles can be connected to the output connector of an automobile by sliding the female connector body out of the protective housing.

[0004] The existing connector female head structure has poor waterproof performance, and water can easily enter the female head, causing adverse effects on the internal components. Therefore, it does not meet the current requirements, and a short-body waterproof female head structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a short-body waterproof female head structure to solve the problem mentioned in the background art that the existing connector female head structure has poor waterproof performance, and water can easily enter the inside of the female head, causing adverse effects on the internal parts.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a short-body waterproof female head structure, comprising: an outer shell, a plug sleeve, a waterproof component, and an inner conductor. The plug sleeve is installed inside the outer shell, and a waterproof component is installed at the end of the plug sleeve. A first waterproof ring is installed between the plug sleeve and the outer shell, and an inner conductor is installed inside the plug sleeve. A second waterproof ring is installed between the inner conductor and the plug sleeve.

[0007] Preferably, the waterproof component includes a heat shrink tubing installed on the outer wall of one end of the insert sleeve, wherein the heat shrink tubing consists of an outer heat shrink tubing and an inner heat shrink tubing forming a double-layer waterproof structure.

[0008] Preferably, the end wall of the outer shell is provided with an assembly port, and three sets of ring-shaped spaced locking blocks are installed on the outer wall of the assembly port.

[0009] Preferably, the outer wall of the insertion sleeve is provided with a waterproof ring groove, the first waterproof ring is installed in the waterproof ring groove, and the size of the first waterproof ring is larger than the assembly opening.

[0010] Preferably, a first assembly protrusion and a second assembly protrusion are installed on the outer wall of the insertion sleeve, and a limiting groove is provided between the first assembly protrusion and the second assembly protrusion, and the locking block is locked in the limiting groove.

[0011] Preferably, a limiting collar is installed in the groove on the outer wall of the end of the insertion sleeve.

[0012] Preferably, an assembly sleeve is installed on the outer wall of the outer casing.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the inner conductor is protected by the outer shell and the plug sleeve. On this basis, the first waterproof ring is set to seal and waterproof the assembly position of the outer shell and the plug sleeve, thereby improving the waterproof effect between the two. The second waterproof ring is set to seal and waterproof the inner conductor and the plug sleeve. Through the waterproof design of the outer and inner parts, the waterproof performance of the entire female head can be effectively improved. For the end of the plug sleeve, waterproof components are added to provide waterproofing. The waterproof components consist of an outer heat shrink tubing and an inner heat shrink tubing forming a double-layer waterproof structure. The heat shrink tubing has good moisture-proof sealing properties, effectively improving the waterproof effect of the end. In addition, it can also improve the protection effect of the end and extend its service life. The female head has a small overall size, simple assembly structure, low cost, and is more conducive to promotion and use.

[0015] (2) In this utility model, the outer shell is provided with an assembly port for inserting and assembling the sleeve. When the inserting sleeve is inserted into the assembly port, the locking block at the assembly port can be embedded into the limiting slot, so that the two are combined together. The first waterproof ring is located at the tail end and its size is larger than the assembly port, so that it can seal the assembly port and effectively improve the waterproof effect at that point. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a rear perspective view of the present invention.

[0018] Figure 3 This is a front perspective view of the outer casing of this utility model;

[0019] Figure 4 This is a schematic diagram of the external structure of the insertion sleeve of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the insertion sleeve of this utility model;

[0021] In the diagram: 1. Outer shell; 101. Assembly port; 102. Locking block; 103. Assembly sleeve; 2. Insert sleeve; 201. First assembly protrusion ring; 202. Second assembly protrusion ring; 203. Limiting groove; 204. Waterproof ring groove; 205. First waterproof ring; 206. Limiting collar; 3. Waterproof component; 301. Outer heat shrink tubing; 302. Inner heat shrink tubing; 4. Inner conductor; 401. Second waterproof ring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1 , Figure 2 , Figure 4 , Figure 5This utility model provides an embodiment of a short-body waterproof female connector structure, comprising: an outer shell 1, a plug-in sleeve 2, a waterproof component 3, and an inner conductor 4. The plug-in sleeve 2 is installed inside the outer shell 1, and the waterproof component 3 is installed at the end of the plug-in sleeve 2. A first waterproof ring 205 is installed between the plug-in sleeve 2 and the outer shell 1. The inner conductor 4 is installed inside the plug-in sleeve 2, and a second waterproof ring 401 is installed between the inner conductor 4 and the plug-in sleeve 2. The waterproof component 3 includes a heat-shrinkable sleeve installed on the outer wall of one end of the plug-in sleeve 2. The heat-shrinkable sleeve consists of an outer heat-shrinkable sleeve 301 and an inner heat-shrinkable sleeve 302 forming a double-layer waterproof structure. The inner conductor 4 is protected by the outer shell 1 and the plug-in sleeve 2. Furthermore, the first waterproof ring 205 provides additional protection. The design of component 5 seals and waterproofs the assembly position of the outer shell 1 and the plug sleeve 2, improving the waterproof effect between them. The second waterproof ring 401 seals and waterproofs the inner conductor 4 and the plug sleeve 2. The outer and inner waterproof design effectively improves the overall waterproof performance of the female connector. For the end of the plug sleeve 2, a waterproof component 3 is installed for waterproofing. The waterproof component 3 consists of an outer heat shrink tubing 301 and an inner heat shrink tubing 302, forming a double-layer waterproof structure. The heat shrink tubing has good moisture-proof sealing properties, effectively improving the waterproof effect at this end. It also improves the protection effect at the end and extends its service life. The female connector has a small overall size, simple assembly structure, and low cost, making it more conducive to widespread use.

[0024] Please see Figure 2 , Figure 3 , Figure 4 An assembly port 101 is provided on the end wall of the outer shell 1. Three sets of annularly spaced locking blocks 102 are installed on the outer wall of the assembly port 101. A first assembly protrusion ring 201 and a second assembly protrusion ring 202 are installed on the outer wall of the insertion sleeve 2. A limiting groove 203 is provided between the first assembly protrusion ring 201 and the second assembly protrusion ring 202. The locking block 102 is locked in the limiting groove 203. A waterproof ring groove 204 is provided on the outer wall of the insertion sleeve 2. A first waterproof ring 205 is installed in the waterproof ring groove 204. The size of the first waterproof ring 205 is larger than that of the assembly port 101.

[0025] The outer casing 1 is provided with an assembly port 101 for inserting and assembling the sleeve 2. When the sleeve 2 is inserted into the assembly port 101, the locking block 102 at the assembly port 101 can be embedded into the limiting slot 203, so that the two are combined together. The first waterproof ring 205 is located at the tail end and its size is larger than the assembly port 101, so that it can seal the assembly port 101 and effectively improve the waterproof effect at that point.

[0026] Please see Figure 1 , Figure 4A limiting collar 206 is installed in the groove on the outer wall of the end of the insertion sleeve 2, and an assembly sleeve 103 is installed on the outer wall of the outer shell 1.

[0027] The limiting collar 206 installed at the end of the plug sleeve 2 can constrain the multiple annularly spaced arc-shaped pieces at the end, keeping the size of the end fixed. The mounting sleeve 103 is set to facilitate the subsequent assembly and combination of the female head and male head and other components.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A short-body waterproof female head structure, comprising an outer shell (1), a plug sleeve (2), a waterproof component (3), and an inner conductor (4), characterized in that: The inner casing (1) is equipped with a plug sleeve (2), the end of the plug sleeve (2) is equipped with a waterproof component (3), a first waterproof ring (205) is installed between the plug sleeve (2) and the outer casing (1), an inner conductor (4) is installed inside the plug sleeve (2), and a second waterproof ring (401) is installed between the inner conductor (4) and the plug sleeve (2).

2. A short body waterproof female head structure according to claim 1, characterized in that: The waterproof component (3) includes a heat shrinkable sleeve installed on the outer wall of one end of the plug sleeve (2), and the heat shrinkable sleeve is composed of an outer heat shrinkable sleeve (301) and an inner heat shrinkable sleeve (302) forming a double-layer waterproof structure.

3. The short body waterproof female head structure according to claim 1, wherein: An assembly port (101) is provided on the end wall of the outer shell (1), and three sets of ring-shaped spaced locking blocks (102) are installed on the outer wall of the assembly port (101).

4. The short body waterproof female head structure according to claim 3, characterized in that: The outer wall of the insertion sleeve (2) is provided with a waterproof ring groove (204), and the first waterproof ring (205) is installed in the waterproof ring groove (204). The size of the first waterproof ring (205) is larger than the assembly opening (101).

5. The short body waterproof female head structure according to claim 3, characterized in that: The outer wall of the insertion sleeve (2) is equipped with a first assembly protrusion ring (201) and a second assembly protrusion ring (202). A limit groove (203) is provided between the first assembly protrusion ring (201) and the second assembly protrusion ring (202). The locking block (102) is locked in the limit groove (203).

6. The short body waterproof female head structure according to claim 1, wherein: A limiting collar (206) is installed in the groove on the outer wall of the tail end of the insertion sleeve (2).

7. The short body waterproof female head structure according to claim 1, wherein: An assembly sleeve (103) is installed on the outer wall of the outer shell (1).

Citation Information

Patent Citations

  • Connector female head for automobile

    CN220324780U