A wire-to-wire waterproof connector
By incorporating a PLR master lock reinforcement structure within the connector socket and plug, and utilizing automatic forced positioning through mating, the problems of complex structure and cumbersome operation of existing connectors are solved, resulting in a highly reliable and safe wire-to-wire waterproof connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGYI TECHNOLOGY (MIANYANG) CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-21
AI Technical Summary
Existing connectors have problems with complex structure and cumbersome operation in terminal locking and reinforcement design. They are prone to omission or incorrect installation due to human negligence, resulting in connection failure or even electrical faults or safety accidents.
A wire-to-wire waterproof connector was designed, which uses a plug-and-receptor connector socket and plug with a mating fit. The socket and plug have a built-in PLR main locking reinforcement structure. The mating fit automatically forces the PLR main locking reinforcement structure of the socket and plug into place, simplifying the operation process and preventing omissions or misinstallation.
This simplifies operation, improves the reliability and safety of connectors, eliminates the risk of missing or incorrect installations, and ensures connection stability and electrical safety.
Smart Images
Figure CN224537510U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, specifically, a wire-to-wire waterproof connector. Background Technology
[0002] With the development of new energy connector technology, in the field of connector technology, especially in the design of wire-to-wire connectors that require reliable locking and waterproofing, the reliability of terminal locking reinforcement structure, ease of operation, and error prevention in assembly are crucial performance indicators.
[0003] Existing connectors often suffer from complex structures and cumbersome operations when implementing terminal locking and reinforcement. This not only increases operation time and complexity, but more importantly, it makes it easy for human error to lead to the locking mechanism being omitted or not fully assembled correctly. Once omitted or incorrectly assembled, the connector terminals may loosen or even detach under insertion and extraction forces, vibration, or environmental stress, resulting in connection failure, signal interruption, and in severe cases, electrical faults or safety accidents. Utility Model Content
[0004] The purpose of this utility model is to provide a wire-to-wire waterproof connector that simplifies the connector operation process, effectively prevents omissions and misinstallations, and ensures high reliability by forcibly guaranteeing that the locking mechanism, such as the PLR main lock reinforcement structure, is in place during final mating.
[0005] The present invention solves the above problems through the following technical solution:
[0006] A wire-to-wire waterproof connector includes: a connector socket and a connector plug that are mated together, and a socket PLR main locking reinforcement structure and a plug PLR main locking reinforcement structure respectively preset in the connector socket and the connector plug. After the connector socket and the connector plug are mated together, the socket PLR main locking reinforcement structure and the plug PLR main locking reinforcement structure abut against each other and their ends abut against the inner end faces of the connector socket and the connector plug, respectively. The sides of the socket PLR main locking reinforcement structure and the plug PLR main locking reinforcement structure are respectively connected to the inner latches of the connector socket and the connector plug.
[0007] As a further improvement, the connector socket has several socket terminals inserted and an inner inclined surface of the socket housing in the middle of one end of the socket housing, and socket latches are symmetrically formed on the inner side of this end of the socket housing.
[0008] The socket PLR main lock reinforcement structure mates with the socket housing of the connector socket at this end. The socket PLR main lock reinforcement structure has several insertion holes in the middle that mate with the socket terminals, and a housing slope that mates with the inner slope of the socket housing. The socket PLR main lock reinforcement structure has housing latches on the left and right sides that mate with the socket latches for locking.
[0009] As a further improvement, the socket terminals are inserted in two rows, one above the other, with an inner bevel formed between the two rows of socket terminals.
[0010] As a further improvement, the socket PLR main lock reinforcement structure is provided with grooves that are recessed into the socket holes on both sides, and the housing latch is formed on the grooves.
[0011] As a further improvement, the housing latch consists of three latches arranged in a triangle to achieve axial positioning of the socket PLR main lock reinforcement structure.
[0012] As a further improvement, the connector socket has a socket protrusion and a second housing latch formed on its outer shell; the connector plug has a first plug slot and a second plug slot formed on the end that mates with the connector socket, and the socket protrusion mates with the first plug slot to direct the insertion direction of the connector socket and the connector plug; the second plug slot has a second housing locking structure that mates with the second housing latch to lock the connector plug and the connector socket.
[0013] As a further improvement, the connector plug has several plug holes in the middle of one end of the plug housing for insertion and connection with the socket terminal through the plug PLR main locking reinforcement structure; it also has an inner beveled surface of the plug housing for abutting and engaging with the beveled surface of the plug housing in the middle of the plug PLR main locking reinforcement structure.
[0014] As a further improvement, plug latches are formed on the left and right sides of one end of the plug housing, which are used to cooperate with the elastic housing latches on the left and right sides of the plug PLR main lock reinforcement structure to fix the plug PLR main lock reinforcement structure in one end of the plug housing.
[0015] As a further improvement, the plug sockets are arranged in two rows, one above the other.
[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0017] (1) This utility model can be assembled by pushing alone or by passive assembly. The passive assembly adopts the passive forced movement of the PLR main lock reinforcement structure at both ends of the plug and socket to move the assembly position. This is so that if the operator forgets or operates improperly and fails to push the plug PLR main lock reinforcement structure or the socket PLR main lock reinforcement structure to the fully assembled position, after the connector socket and connector plug are properly mated, the socket PLR main lock reinforcement structure and the plug PLR main lock reinforcement structure abut against each other and their ends abut against the inner end faces of the connector socket and connector plug respectively. This indirectly achieves the goal of moving the plug PLR main lock reinforcement structure or the socket PLR main lock reinforcement structure to the fully assembled position, making assembly convenient. The passive forced movement of the plug and socket PLR main lock reinforcement structure simplifies human operation and eliminates the safety hazards caused by the complex structure and cumbersome operation steps of the existing single-push locking connector.
[0018] (2) The present invention has a PLR main lock reinforcement structure in the housing of both the plug and the socket, which not only improves the reliability requirements, but also adopts the passive positioning function of the PLR main lock reinforcement structure to prevent omissions or incorrect installations, while meeting the requirements of electrical safety. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of a wire-to-wire waterproof connector according to the present invention;
[0020] Figure 2 This is a schematic diagram of the connector socket of this utility model;
[0021] Figure 3 This is a schematic diagram of the connector plug of this utility model;
[0022] Figure 4 This is a schematic diagram showing the fit between the main lock reinforcement structure of the socket PLR and the socket housing of this utility model;
[0023] Figure 5 This is a schematic diagram showing the fit between the main lock reinforcement structure of the plug PLR and the plug housing of this utility model.
[0024] Figure label:
[0025] 1. Connector socket; 2. Connector plug; 201. Socket PLR main lock reinforcement structure; 202. Socket terminal insertion; 203. Socket PLR main lock reinforcement structure final lock push direction; 204. Socket latch protrusion; 205. Housing second lock; 301. Plug PLR main lock reinforcement structure; 302. Plug socket; 303. Plug PLR main lock reinforcement structure final lock push direction; 304. Plug first slot; 305. Plug second slot; 401. Pin hole; 402. Housing bevel; 403. Housing lock; 404. Socket housing inner bevel; 405. Socket lock; 501. Socket hole; 502. Plug housing bevel; 503. Elastic housing lock; 504. Plug housing inner bevel; 505. Plug lock. Detailed Implementation
[0026] 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.
[0027] Example:
[0028] Combined with appendix Figure 1-5 As shown, a wire-to-wire waterproof connector includes: a connector socket 1 and a connector plug 2 that are mated together, and a socket PLR main locking reinforcement structure 201 and a plug PLR main locking reinforcement structure 301 respectively preset in the connector socket 1 and the connector plug 2. After the connector socket 1 and the connector plug 2 are mated together, the socket PLR main locking reinforcement structure 201 and the plug PLR main locking reinforcement structure 301 abut against each other and their ends abut against the inner end faces of the connector socket 1 and the connector plug 2, respectively. This is to force correction by the shells of the connector plug 2 and the connector socket 1 against the PLR main locking reinforcement structure which is not in the correct position. Through the inevitable mating movement between the shells of the connector plug 2 and the connector socket 1 during mating, the final positioning of the PLR main locking reinforcement structure becomes the inevitable result and inherent requirement of successful mating.
[0029] The connector socket 1 has the following main structure: socket PLR main lock reinforcement structure 201, socket terminal insertion 202.
[0030] The connector plug 2 has the following main structures: plug PLR main locking reinforcement structure 301, plug socket 302.
[0031] All pin holes 401 on the PLR main locking reinforcement structure 201 of the connector socket serve to correct and guide the insertion of all socket terminals 202, increasing the creepage distance and clearance of the terminals. The bevels of the housing slope 402 and the inner slope 404 of the socket housing are maintained. The housing latch 403 and the socket latch 405 lock together. The first "click" sound indicates the pre-locking state of the PLR main locking reinforcement structure, and pushing it to the bottom indicates the final locking state of the socket PLR main locking reinforcement structure.
[0032] The function of all the sockets 501 on the connector plug PLR main lock reinforcement structure 301 is that when the socket locking protrusion 204 mates with the plug's first locking groove 304, such as... Figure 1 The PLR main locking reinforcement structure of the connector plug and socket has reached the final locking state. At this time, the socket terminals 202 and plug sockets 302 on both ends are also connected to each other. The plug PLR main locking reinforcement structure 301 of the connector plug has two square grooves on the left and right, a groove in the middle, and two grooves on the top and bottom near the connector socket. The two square grooves on the left and right are for spring-loaded core pulling, which facilitates better demolding. The two grooves on the top and bottom are for easier disassembly. The groove in the middle is to reduce the local material thickness to avoid shrinkage affecting precision and appearance.
[0033] The principle of the PLR main lock reinforcement structure 201 of the connector socket: When the PLR main lock reinforcement structure 201 is in the pre-locked state, for example, about 13.9mm from the end face of the socket housing, the socket terminals are inserted 202. After all terminals are installed in place, the PLR main lock reinforcement structure is pressed from the pre-locked state to the final lock state. The final lock pushing direction of the PLR main lock reinforcement structure is 203, such as... Figure 2 .
[0034] The principle of the connector plug PLR main locking reinforcement structure 301: When the plug PLR main locking reinforcement structure 301 is in the pre-locked state, for example, about 2mm from the end face of the plug housing, after all terminals of the plug socket 302 are installed in place, press the plug PLR main locking reinforcement structure from the pre-locked state to the final locked state. The final locking push direction of the plug PLR main locking reinforcement structure is 303, such as... Figure 3 .
[0035] During mating, the connector socket 1 is aligned with the connector plug 2, and the socket locking protrusion 204 aligns with the plug's first locking groove 304. If the operator does not manually push the socket PLR main locking reinforcement structure 201 or the plug PLR main locking reinforcement structure 301 to the fully assembled position, i.e., in the pre-assembled or intermediate position, the plug housing end and the socket housing will directly contact and press the PLR main locking reinforcement structure in the incompletely assembled position during their approach and final engagement, ensuring that the PLR main locking reinforcement structures at both ends are in the correct locking state.
[0036] Specifically, the connector socket 1 has a plurality of socket terminal inserts 202 in the middle of one end of the socket housing. In this embodiment, the socket terminal inserts 202 are arranged in two rows, and an inner inclined surface 404 of the socket housing is formed between the upper and lower rows of socket terminal inserts 202. Socket latches 405 are symmetrically formed on the inner side of the socket housing.
[0037] The socket PLR main lock reinforcement structure 201 mates with the socket housing of the connector socket 1 at this end. A plurality of pin holes 401 are formed in the middle to mate with the socket terminal insertion 202. Between the upper and lower rows of pin holes 401, a housing slope 402 is formed to mate with the inner slope 404 of the socket housing. A groove plate is symmetrically arranged on the left and right sides to be recessed into the pin holes 401. A housing latch 403 is formed on the groove plate to mate with the socket latch 405 for locking. After the socket PLR main lock reinforcement structure 201 is pre-positioned in the socket housing of the connector socket 1, the socket PLR main lock reinforcement structure 201 is pushed to be circumferentially limited by the housing slope 402 and the pin holes 401. The housing latch 403 and the socket latch 405 are then locked to achieve axial positioning.
[0038] Preferably, the housing latch 403 consists of three latches arranged in a triangular pattern.
[0039] In this embodiment, the socket housing of the connector socket 1 has two socket protrusions 204 and a second housing latch 205 formed on the outer side of the socket housing; the connector plug 2 has a first plug slot 304 and a second plug slot 305 formed on the end that mates with the connector socket 1. The two socket protrusions 204 mate with the first plug slot 304 respectively to guide the insertion direction of the connector socket 1 and the connector plug 2; the second plug slot 305 has a second housing locking structure that mates with the second housing latch 205 to lock the connector plug 2 and the connector socket 1.
[0040] The connector plug 2 has several plug holes in the middle of one end of the plug housing. In this embodiment, the plug holes are arranged in two rows, upper and lower, for insertion into the socket terminal insertion 202. An inner inclined surface 504 is formed between the upper and lower rows of plug holes, which abuts against the inclined surface 502 of the plug housing in the middle of the plug PLR main lock reinforcement structure 301. Plug latches 505 are formed on the left and right sides of the outer structural plate surrounding all the plug holes at one end of the plug housing. These latches cooperate with the elastic housing latches 503 on the left and right sides of the plug PLR main lock reinforcement structure 301 to fix the plug PLR main lock reinforcement structure 301 inside one end of the plug housing.
[0041] The present invention has the following advantages:
[0042] 1. Utilizing the final action of the plug and socket mating, through the physical interference and forced drive between the housing and the PLR main locking reinforcement structure (which is in an incorrect position), the PLR main locking reinforcement structure at both the plug and socket ends is passively and automatically pushed and reliably locked into the fully assembled position simultaneously. This passive forced locking of the PLR main locking reinforcement structure at both ends of the plug and socket simplifies manual operation and eliminates the safety hazards caused by the complex structure and cumbersome installation steps of existing individually pushed locking connectors.
[0043] 2. The moving parts of the plug and socket housing are equipped with PLR main lock reinforcement structures. When it is in the pre-assembly position, the terminals can be inserted. After all the terminals are inserted, the PLR main lock reinforcement structure can be pressed from the pre-locked state to the final lock state to lock the terminals.
[0044] 3. The original two separate operation push PLR main lock reinforcement structure and mating are combined into one forced correction mechanism. This is a simple structure with significant effect, which can effectively improve the reliability, safety and production efficiency of connector assembly.
[0045] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.
Claims
1. A wire-to-wire waterproof connector, characterized in that, The application relates to a connector socket and a connector plug which are matched with each other, a socket PLR main lock reinforcing structure and a plug PLR main lock reinforcing structure which are respectively arranged in the connector socket and the connector plug, and the socket PLR main lock reinforcing structure and the plug PLR main lock reinforcing structure are matched with each other and are respectively matched with the inner end face of the connector socket and the connector plug after the connector socket and the connector plug are matched with each other, and the side face of the socket PLR main lock reinforcing structure and the plug PLR main lock reinforcing structure is respectively connected with the lock buckle of the connector socket and the connector plug. The inner middle part of one end of the socket shell of the connector socket is provided with a plurality of socket terminal insertion and socket shell inner inclined surfaces, and the left and right sides of the inner part of the one end of the socket shell are symmetrically provided with socket lock buckles.
2. The waterproof wire-to-wire connector according to claim 1, wherein The socket PLR main lock reinforcing structure is matched with the inner part of the one end of the socket shell of the connector socket, the middle part of the socket PLR main lock reinforcing structure is provided with a plurality of insertion holes matched with the socket terminal insertion, and the middle part of the socket PLR main lock reinforcing structure is provided with shell inclined surfaces matched with the socket shell inner inclined surfaces; the left and right sides of the socket PLR main lock reinforcing structure are provided with shell lock buckles matched with the socket lock buckles. The socket terminal insertion is provided with two rows of upper and lower socket terminal insertions, and the insertion holes formed between the two rows of upper and lower socket terminal insertions are the socket shell inner inclined surfaces.
3. The waterproof wire-to-wire connector of claim 2, wherein, The left and right sides of the socket PLR main lock reinforcing structure are symmetrically provided with groove plates recessed into the insertion holes, and the groove plates are provided with the shell lock buckles.
4. The waterproof wire-to-wire connector of claim 2, wherein, The shell lock buckles are three triangular lock buckles, and the three triangular lock buckles are used for axially limiting the socket PLR main lock reinforcing structure.
5. The waterproof wire-to-wire connector of claim 4, wherein, The outer part of the socket shell of the connector socket is provided with a socket clamping convex and a shell second lock buckle; the inner part of the one end of the connector plug matched with the connector socket is provided with a plug first clamping groove and a plug second clamping groove, the socket clamping convex is matched with the plug first clamping groove, so that the matching direction of the connector socket and the connector plug is pointed; the plug second clamping groove is provided with a shell second locking structure matched with the shell second lock buckle, so that the connector plug and the connector socket are locked.
6. The waterproof wire-to-wire connector of claim 1, wherein, The inner middle part of one end of the plug shell of the connector plug is provided with a plurality of plug insertion holes used for inserting the plug PLR main lock reinforcing structure and the socket terminal insertion, and the inner middle part of the one end of the plug shell is provided with a plug shell inner inclined surface used for being matched with the plug shell inclined surface of the middle part of the plug PLR main lock reinforcing structure.
7. The waterproof wire-to-wire connector according to any one of claims 1-6, wherein, The left and right sides of the one end of the plug shell are provided with plug lock buckles used for being matched with the elastic shell lock buckles of the left and right sides of the plug PLR main lock reinforcing structure, so that the plug PLR main lock reinforcing structure is fixedly arranged in the one end of the plug shell.
8. The waterproof wire-to-wire connector of claim 7, wherein, The plug insertion holes are two rows of upper and lower plug insertion holes.
9. The waterproof wire-to-wire connector of claim 7, wherein,