Highly reliable waterproof connector

Abstract

The utility model belongs to the field of connector, specifically relates to a high reliability waterproof connector, including male rubber shell and a plurality of male terminals and female rubber shell and a plurality of female terminals, and the one end of female rubber shell is provided with the insertion slot that can insert male rubber shell, is provided with sealing ring in insertion slot, and the one end of male rubber shell is inserted in insertion slot and is abutted on sealing ring, and constitutes the sealing cooperation of sealing ring, male rubber shell and female rubber shell, is provided with a plurality of limiting convex strips on male rubber shell respectively and is abutted on the inner wall of insertion slot, is provided with female end wire harness sealing assembly on the other end of female rubber shell, is provided with a plurality of male end wiring hole that can pass through male end wire harness on the other end of male rubber shell respectively, is provided with a plurality of sealing plugs in a plurality of male end wiring hole respectively, is provided with sealing ring in the insertion slot of female rubber shell, and sealing ring is sealed with male rubber shell and female rubber shell, and a plurality of limiting convex strips on male rubber shell are abutted in insertion slot, guarantee male rubber shell and female rubber shell reliable plug, be favorable to the sealing performance of male rubber shell and female rubber shell junction.

Description

Technical Field

[0001] This utility model belongs to the field of connector technology, specifically relating to a highly reliable waterproof connector. Background Technology

[0002] A connector is a device that connects two active devices and is used to transmit current or signals. The main application areas for electrical connectors include transportation, communication, networking, IT, medical, and home appliances. The rapid development of product technology and the rapid growth of the market in these application areas have strongly driven the development of connector technology. To date, connectors have evolved into a series of specialized products with a complete range of types and specifications, diverse structures, specialized focuses, distinct industry characteristics, and standardized systems. A connector consists of a male housing, male terminals housed within the male housing, a female housing, and female terminals housed within the female housing and mating with the male terminals.

[0003] The existing connectors have inadequate waterproofing. Rainwater can easily enter the connector from the connection point between the male and female housings, and can also travel along the wiring harness into both the male and female housings. Therefore, these connectors cannot meet the requirements for use in harsh environments. When used in vibration environments, the male and female terminals are prone to momentary disconnections, leading to unreliable connections. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a highly reliable waterproof connector with reliable connection and good waterproof performance, which can meet the requirements of use in harsh environments.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A highly reliable waterproof connector includes a male housing and multiple male terminals disposed within the male housing, a female housing and multiple female terminals disposed within the female housing. One end of the female housing is provided with a insertion groove for the male housing to be inserted into. A sealing ring is disposed within the insertion groove. One end of the male housing passes through the insertion groove and abuts against the sealing ring, forming a sealing fit between the sealing ring and the male and female housings. The male housing is provided with multiple limiting protrusions that abut against the inner wall of the insertion groove. A female terminal wire harness sealing assembly is provided at the other end of the female housing. The other end of the male housing is provided with multiple male terminal wiring holes for the male terminal wire harness to pass through. Multiple sealing plugs are disposed within the multiple male terminal wiring holes. The male terminal wire harness passes through the multiple sealing plugs and is connected to the multiple male terminals.

[0006] In some embodiments, the female end wire harness sealing assembly includes a cover and a sealing gasket disposed inside the cover. The sealing gasket is provided with a plurality of sealing holes through which the female end wire harness can pass. The cover is provided with a plurality of wire-passing holes through which the female end wire harness can pass. The cover is detachably disposed on the female housing, and the cover presses the sealing gasket tightly onto the female housing, thus forming a sealing fit between the sealing gasket, the cover, and the female housing.

[0007] In some embodiments, the cover is symmetrically provided with two buckle plates, each of the two buckle plates is provided with a buckle hole, and the mother shell is provided with two buckle blocks that engage with the two buckle holes.

[0008] In some embodiments, two locking blocks are symmetrically arranged on the male rubber shell at the corresponding insertion slot, and two locking plates are respectively provided on the female rubber shell to engage with the two locking blocks. The locking force of the two locking plates causes one end of the male rubber shell to abut against the sealing ring.

[0009] In some embodiments, one end of the latch plate has a compression unlocking part, and the other end of the latch plate has a hook-like body that engages with the locking block.

[0010] In some embodiments, the male housing has two symmetrical elastic buckle plates, each elastic buckle plate has a buckling protrusion at one end, a buckling guide slope on one side of the buckling protrusion, and a stepped buckling locking part on the other side of the buckling protrusion.

[0011] In some embodiments, each of the sealing plugs is provided with a plug hole through which the male wire harness can pass, and a plurality of sealing protrusions are provided in the plug hole to abut against the male wire harness, and a plurality of protrusion portions are provided on the outer peripheral wall of the sealing plug to abut against the male terminal wiring hole.

[0012] In some embodiments, each of the female terminals has a square-shaped insertion sleeve at one end, and each of the male terminals has a protruding portion that is inserted into the insertion sleeve at one end.

[0013] In some embodiments, the insert portion includes an insert and two contact pieces that are vertically bent and distributed on both sides of the insert, wherein the two contact pieces have two contact guide portions extending outside the insert.

[0014] In some embodiments, the insertion sleeve is provided with contact bosses that abut against two contact pieces.

[0015] The beneficial effects of this utility model are as follows: By setting a sealing ring in the insertion groove of the female rubber shell, the sealing ring seals and cooperates with the male and female rubber shells. Multiple limiting protrusions on the male rubber shell abut against the insertion groove, ensuring reliable insertion between the male and female rubber shells. This helps to improve the sealing performance at the connection between the male and female rubber shells. The sealing plug and the female end wire harness sealing assembly can prevent rainwater from entering the connector through the male and female end wire harnesses. The multi-directional sealing structure design provides better waterproof performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0017] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0018] Figure 2 This is a cross-sectional view of an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0020] Figure 4 This is a perspective view of the male terminal of an embodiment of this utility model. Detailed Implementation

[0021] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0023] The directional and positional terms used in this utility model, such as up, down, front, back, left, right, inside, outside, top, bottom, side, etc., are only for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments:

[0025] like Figure 1-4 As shown, a highly reliable waterproof connector includes a male housing 1 and multiple male terminals 2 disposed within the male housing 1, and a female housing 3 and multiple female terminals 4 disposed within the female housing 3. One end of the female housing 3 is provided with a insertion groove 31 into which the male housing 1 can be inserted. A sealing ring 5 is disposed within the insertion groove 31. One end of the male housing 1 passes through the insertion groove 31 and abuts against the sealing ring 5, forming a sealing fit between the sealing ring 2 and the male housing 1 and the female housing 3. Multiple limiting protrusions 11 are respectively provided on the male housing 1, which abut against the inner wall of the insertion groove 31. A female end wire harness sealing assembly 6 is provided on the other end of the female housing 3. Multiple male end wiring holes 12 are respectively provided on the other end of the male housing 1, through which the male end wire harness can pass. Multiple sealing plugs 7 are respectively disposed within the multiple male end wiring holes 12. The male end wire harness passes through the multiple sealing plugs 7 and is connected to the multiple male terminals 2. By setting a sealing ring in the insertion groove of the female housing, the sealing ring seals with the male and female housings. Multiple limiting protrusions on the male housing abut against the insertion groove, ensuring reliable mating between the male and female housings. This improves the sealing performance at the connection between the male and female housings. The sealing plug and female end wire harness sealing assembly prevent rainwater from entering the connector through the male and female end wire harnesses. The multi-directional sealing structure design provides better waterproof performance.

[0026] like Figure 2 and 3 As shown, the female end wire harness sealing assembly 6 includes a cover 61 and a sealing gasket 62 disposed inside the cover 61. The sealing gasket 62 has multiple sealing holes 621 for the female end wire harness to pass through. The cover 61 has multiple through holes 611 for the female end wire harness to pass through. The cover 61 is detachably mounted on the female housing 3, and the cover 61 presses the sealing gasket 62 tightly against the female housing 3, forming a sealing fit between the sealing gasket 62, the cover 61, and the female housing 3. The sealing gasket prevents rainwater from entering the connector along the female end wire harness, thereby improving the connector's sealing performance. Two snap-fit ​​plates 612 are symmetrically arranged on the cover 61, each with a snap-fit ​​hole 613. The female housing 3 has two snap-fit ​​blocks 32 that engage with the two snap-fit ​​holes 613. The cover is snapped into the mother shell, which facilitates the assembly of the female end wire harness sealing assembly and the mother shell, resulting in higher assembly efficiency.

[0027] like Figure 1 , 2As shown in Figure 3, two locking blocks 13 are symmetrically arranged on the male housing 1 at the corresponding insertion slot 31. The female housing 3 is provided with two locking plates 33 that engage with the two locking blocks 13. The locking force of the two locking plates 33 causes one end of the male housing 1 to abut against the sealing ring 5. The double-locking plate structure design of the male and female housings increases the locking force between them, thereby improving the sealing performance at the connection point. One end of the locking plate 33 has a compression unlocking part 331, and the other end has a hook-shaped body 332 that engages with the locking block 13. The locking plate engages with the locking block through the hook-shaped body, facilitating the assembly of the male and female housings. The male housing 1 has two symmetrical elastic snap-fit ​​plates 14. Each elastic snap-fit ​​plate 14 has a snap-fit ​​protrusion 141 at one end, a snap-fit ​​guide slope 142 on one side of the snap-fit ​​protrusion 141, and a stepped snap-fit ​​locking part 143 on the other side. The two elastic snap-fit ​​plates on the male housing enable snap-fit ​​installation of the connector, making installation more convenient.

[0028] like Figure 2 As shown, each sealing plug 7 is provided with a plug hole 71 through which the male terminal wire harness can pass. Multiple sealing protrusions 72 are respectively provided within the plug hole 71, abutting against the male terminal wire harness. Multiple protruding ring portions 73 are respectively provided on the outer peripheral wall of the sealing plug 7, abutting against the male terminal wiring hole 12. The sealing plug contacts the male terminal wire harness through the sealing protrusions, and the sealing plug contacts the male terminal wiring hole through the protruding ring portions. The sealing protrusions and protruding ring portions elastically deform and tightly fit against the male terminal wire harness and male housing, generating higher contact pressure under pressure, which helps to improve sealing performance.

[0029] like Figure 2-4 As shown, each female terminal 4 has a rectangular cross-section sleeve 41 at one end, and each male terminal 2 has a protruding piece 21 that inserts into the sleeve 41 at one end. The rectangular cross-section of the sleeve and the fully enclosed structure of the female terminal ensure reliable contact between the male and female terminals, meeting the requirements for use in vibration environments. The protruding piece 21 includes a protruding piece 211 and two contact pieces 212 vertically bent and distributed on both sides of the protruding piece 211. The two contact pieces 212 have two contact guides 2121 extending outside the protruding piece 211. The protruding piece contacts the sleeve through the two contact pieces, increasing the contact pressure between the protruding piece and the sleeve, ensuring more reliable contact between the male and female terminals, and meeting the requirements for use in vibration environments. The contact guides provide guidance, allowing the protruding piece to be reliably and smoothly inserted into the sleeve, which helps reduce the insertion force. The insert sleeve 41 is provided with contact bosses 411 that abut against the two contact pieces 212. The insert sleeve contacts the contact pieces through the contact bosses, thereby increasing the contact pressure between the female terminal and the male terminal, making the contact more reliable and meeting the requirements for use in vibration environments.

[0030] The above description is only one embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model; the scope of protection of the present utility model is defined by the claims in the claims, and all equivalent changes and modifications made in accordance with the utility model are within the scope of protection of the present utility model patent.

Claims

1. A highly reliable waterproof connector, comprising a male housing and a plurality of male terminals disposed within the male housing, and a female housing and a plurality of female terminals disposed within the female housing, characterized in that: The female housing has a insertion groove at one end for the male housing to be inserted into. A sealing ring is provided in the insertion groove. One end of the male housing passes through the insertion groove and abuts against the sealing ring, forming a sealing fit between the sealing ring and the male and female housings. The male housing has multiple limiting protrusions that abut against the inner wall of the insertion groove. The other end of the female housing has a female end wire harness sealing assembly. The other end of the male housing has multiple male end wiring holes for the male end wire harness to pass through. Multiple sealing plugs are provided in the multiple male end wiring holes. The male end wire harness passes through the multiple sealing plugs and is connected to multiple male terminals.

2. The high-reliability waterproof connector according to claim 1, characterized in that: The female end wire harness sealing assembly includes a cover and a sealing gasket disposed inside the cover. The sealing gasket is provided with multiple sealing holes for the female end wire harness to pass through. The cover is provided with multiple wire-passing holes for the female end wire harness to pass through. The cover is detachably disposed on the female rubber shell, and the cover presses the sealing gasket tightly onto the female rubber shell, thus forming a sealing fit between the sealing gasket, the cover, and the female rubber shell.

3. The high-reliability waterproof connector according to claim 2, characterized in that: The cover has two symmetrically arranged buckle plates, each with a buckle hole, and the mother shell has two buckle blocks that engage with the two buckle holes.

4. The high-reliability waterproof connector according to claim 1, characterized in that: The male rubber shell has two locking blocks symmetrically arranged at the corresponding insertion slots, and the female rubber shell has two locking plates that engage with the two locking blocks. The locking force of the two locking plates causes one end of the male rubber shell to abut against the sealing ring.

5. The high-reliability waterproof connector according to claim 4, characterized in that: The latch plate has a compression unlocking part at one end and a hook-shaped body at the other end that engages with the locking block.

6. The high-reliability waterproof connector according to claim 1, characterized in that: The male plastic shell has two symmetrical elastic buckle plates. Each elastic buckle plate has a buckling protrusion at one end, a buckling guide slope on one side of the buckling protrusion, and a stepped buckling locking part on the other side.

7. The high-reliability waterproof connector according to claim 1, characterized in that: Each of the aforementioned sealing plugs is provided with a plug hole through which the male terminal wire harness can pass. Multiple sealing protrusions are provided in the plug hole to abut against the male terminal wire harness. Multiple protrusion portions are provided on the outer peripheral wall of the sealing plug to abut against the male terminal wiring hole.

8. The high-reliability waterproof connector according to claim 1, characterized in that: Each of the female terminals has a square-shaped insertion sleeve at one end, and each of the male terminals has a prong portion that inserts into the insertion sleeve at one end.

9. The high-reliability waterproof connector according to claim 8, characterized in that: The insert portion includes an insert and two contact pieces that are vertically bent and distributed on both sides of the insert. The two contact pieces have two contact guide portions that extend outside the insert.

10. The high-reliability waterproof connector according to claim 9, characterized in that: The insertion sleeve is provided with contact bosses that abut against two contact pieces.

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