Double-row miniature waterproof connector applied to periphery of automobile body

Abstract

The application discloses a double-row miniature waterproof connector applied to the periphery of a car body, which comprises a connector body and an integrated assembly used in cooperation with the connector body, wherein the integrated assembly comprises a cover body and a buckle body, the cover body and the buckle body are in an integrated structure, a first sealing element is arranged between the cover body and the connector body, the cover body is used for sealing the end of the connector body by abutting against the first sealing element, and the buckle body is used for locking the connector body to an external structure, so that the installation spaces of the original cover body and the lateral buckle body are combined into one, and the transverse and longitudinal spaces of the side of the connector are greatly saved.

Description

Technical Field

[0001] This invention relates to the field of connector technology, and in particular to a dual-row miniature waterproof connector for use around an automobile body. Background Technology

[0002] With the rapid development of new energy vehicles, higher demands are being placed on the miniaturization, lightweighting, and high reliability of electrical connectors. Connector housings typically feature lateral latches for securing to external devices or mounting plates, as well as covers for tightening the sealing ring to ensure the mechanical stability of the electrical connection and environmental sealing performance. In traditional connector structures, these electrical connectors either lack fixing latches or the fixing latches are often assembled as independent parts on the side of the housing, and the sealing ring also requires a separate cover structure for tightening and sealing. Each component occupies independent installation space and structural allowance on the housing, which is detrimental to the miniaturization requirements of electrical connectors. Therefore, a dual-row miniature waterproof connector for use around the automotive body is provided. Summary of the Invention

[0003] To overcome the shortcomings of the prior art, the present invention provides a dual-row miniature waterproof connector for use around the vehicle body.

[0004] The technical solution adopted by this invention to solve its technical problem is: This invention provides a dual-row miniature waterproof connector for use around an automobile body, including a connector body; it also includes an integrated component for use with the connector body, the integrated component including a cover and a snap fastener, the cover and snap fastener being an integral structure, a first sealing element sandwiched between the cover and the connector body, the cover sealing the end of the connector body by abutting the first sealing element, and the snap fastener locking the connector body to an external structure.

[0005] Preferably, the first sealing element has a second groove that penetrates the first sealing element along its thickness direction. The second groove includes a first groove portion and a second groove portion connected to the first groove portion. The second groove portion is frustoconical in shape, with the groove diameter at the end of the second groove portion away from the first groove portion being larger than the groove diameter at the end of the second groove portion near the first groove portion. The end of the second groove portion away from the first groove portion penetrates the end face of the first sealing element. The second groove portion has two ends located at the two ends of the length direction of the first groove portion, with the first groove portion located between the two second groove portions. The second groove on the first sealing element is formed by the first... The stepped structure formed by the connection of the first and second grooves, wherein the second groove is truncated cone-shaped with its opening facing outward, can guide the wire harness during installation, reduce the assembly resistance between the wire harness and the seal, and prevent damage to the seal caused by forced wire harness insertion; at the same time, the truncated cone-shaped structure can gradually generate radial compression deformation after the wire harness enters the first groove, so that the seal and the outer periphery of the wire harness form a tighter fit, thereby improving the waterproof sealing performance at the wire harness through-hole position, and is conducive to adapting to wire harnesses of different diameter ranges, improving the applicability and assembly convenience of the product.

[0006] Preferably, the first sealing element is further provided with a first convex ring and a second convex ring. The first convex ring is located on the groove wall of the first groove and is used to radially press and seal the inserted wire harness. The second convex ring is located on the peripheral wall of the first sealing element and is used to interfere with the connector body or cover. There are two of each type of convex ring. The two first convex rings are located in the middle of the thickness direction of the first sealing element, and the two second convex rings are located at the two ends of the thickness direction of the first sealing element. The first convex rings located on the inner wall of the first groove can form multiple radial sealing contact interfaces after the wire harness is inserted, which enhances the sealing element's ability to cover the outer wall of the wire harness and reduces the possibility of liquid seeping into the connector interior along the wire harness surface. The second convex rings located on the outer peripheral wall of the first sealing element can form multiple interference seals with the connector body and cover, so that the first sealing element and the surrounding structure maintain a stable pressing state, thereby improving the sealing reliability of both the wire harness side and the structural side and reducing the risk of sealing failure under long-term vibration conditions.

[0007] Preferably, the connector body has a first protrusion, and the cover has a first groove for receiving the first protrusion. The first protrusion and / or the cover are at least partially made of an elastic deformable material, and the cover is fastened to the connector body by the blocking engagement of the first protrusion and the first groove. The connector body also has a third groove, and the cover has a second protrusion for receiving the third groove. The second protrusion and the third groove cooperate to form a foolproof positioning structure to limit the assembly direction of the cover and the connector body. The first protrusion and the first groove form a snap-fit ​​connection, allowing the cover to be quickly installed on the connector body without additional fasteners, which helps to shorten assembly time and reduce the number of parts. The foolproof positioning structure formed by the second protrusion and the third groove can uniquely limit the installation direction of the cover, avoiding problems such as reverse installation and misalignment during assembly, thereby improving assembly accuracy and product consistency, and reducing poor sealing or locking failure caused by human assembly errors.

[0008] Preferably, the connector body includes a first connecting component and a second connecting component. The first connecting component and the second connecting component are used to connect a first wire harness and a second wire harness to the outside world, respectively. The first connecting component and the second connecting component are plugged into each other for electrical connection between the two wire harnesses. A first protrusion is fixedly disposed on the first connecting component at one end away from the second connecting component. The cover includes a ring and a plate fixed on the ring. A first groove is provided on the ring to accommodate a first protrusion. The end of the plate away from the second connecting component has a protrusion that extends from the plate toward the side away from the second connecting component. The protrusion has a fourth groove for external wire harnesses to pass through. The end of the plate near the second connecting component cooperates with the connector body to clamp and stop the first seal. The cover forms a covering fit with the connector body through the ring. The plate can apply a stable clamping force to the first seal, while the fourth groove on the protrusion provides a centralized passage for the wire harness, so that the exit position of the wire harness is properly guided and constrained, avoiding excessive bending or deviation of the wire harness at the connector exit. At the same time, the cover has both sealing and clamping functions and wire harness guiding functions, which helps to improve the neatness of the wire harness arrangement and the compactness of the overall connector structure.

[0009] Preferably, the fastener includes a first stop plate and a second stop plate protruding from the outer wall of the cover. There are two first stop plates located on the same side in the thickness direction of the cover. The second stop plate is located between the two first stop plates. The two first stop plates are arranged opposite each other and are respectively located at both ends in the length direction of the cover. The ends of the first stop plates away from the cover are bent and extended to form an L-shape. The two first stop plates are used to limit the cover in the thickness direction of the cover. The two oppositely arranged first stop plates form a limiting structure in the thickness direction of the cover. After the connector is installed to the external mounting plate or the vehicle body mounting position, the cover can be clamped and positioned on both sides to prevent the cover from moving under force or vibration. Its L-shaped bending structure can improve the structural strength and deformation resistance of the stop plate itself, so that the connector can maintain a stable installation state during long-term use.

[0010] Preferably, the second stop plate is located at the end of the cover and / or the first stop plate along its length, and a third stop plate is located at the end of the cover and / or the first stop plate away from the second stop plate along its length. The first, second, and third stop plates are all located on the same side along the thickness of the cover. The extension height of the third stop plate is less than that of the first stop plate. The end of the third stop plate away from the second stop plate has a chamfer. The second and third stop plates cooperate to form a multi-directional limiting structure, which can further constrain the position of the connector in the installation space and improve the stability of the fit between the connector and the external installation structure. The height of the third stop plate is lower than that of the first stop plate, which can form a graded guiding effect, making it easier for the connector to be inserted into the installation position. The chamfer helps to reduce assembly interference, improve the insertion performance of the connector when entering the installation hole, and make the installation process smoother.

[0011] Preferably, the connector body includes a first connecting component and a second connecting component. The first connecting component includes a first housing and a first terminal fixing member and a first TPA member disposed within the first housing. The first terminal fixing member is provided with a first terminal group, which is used to electrically connect to a first wire harness from the outside. The second connection assembly includes a second housing and a second terminal fixing member and a second TPA member disposed within the second housing. The second terminal fixing member is provided with a second terminal group, which is used to electrically connect to a second wire harness from the outside. The first terminal group and the second terminal group are electrically connected to conduct the connection between the two external wire harnesses. The first terminal fixing member and the second terminal fixing member respectively position and fix the corresponding terminal groups. Together with the first TPA member and the second TPA member, the terminals are locked in a secondary manner, which can effectively prevent the terminals from coming loose during insertion, vibration, or wire harness pulling. At the same time, the first terminal group and the second terminal group form a stable conductive connection path, thereby improving the electrical connection reliability and long-term stability of the connector.

[0012] Preferably, the second terminal fixing member is provided with a sixth groove, which is formed in an annular shape by recessing from the outer wall of the second terminal fixing member. The sixth groove is provided with a third sealing member. The first housing is used to be inserted into the second housing, and the third sealing member is used to seal the gap between the second terminal fixing member and the first housing. The third seal is annular in shape, with two third convex rings on its inner wall and two fourth convex rings on its outer wall. The two third convex rings are located at both ends of the third seal in the thickness direction, and the fourth convex rings are located in the middle of the third seal in the thickness direction. The third seal does not protrude from the end face of the second terminal fixing member, while the fourth convex rings protrude from the end face of the second terminal fixing member. The third seal is located in the mating area between the first housing and the second terminal fixing member, sealing any assembly gaps that may form between them, thereby preventing moisture from entering the interior along the connector insertion interface. The third and fourth convex rings form multiple sealing contact areas, which not only ensure sealing performance but also compensate for assembly tolerances, allowing the seal to maintain a stable sealing effect under long-term temperature changes and vibration conditions, further improving the overall waterproof rating and environmental adaptability of the connector.

[0013] Preferably, the second terminal fixing member is provided with a third protrusion, the second housing is provided with a fifth groove for receiving the third protrusion, and the second housing is also provided with a protrusion located at one end of the second housing near the integrated component; The first housing is provided with a first locking block, and the second terminal fixing member is provided with a fastening member for cooperating with the first locking block. The fastening member is elastically set on the second terminal fixing member to stop the first locking block and prevent the first housing from detaching from the second housing. The second housing is also provided with a pressing member. The pressing member deforms under pressure, which can cause the first locking block to detach from the fastening member. The cooperation between the third protrusion and the fifth groove can ensure that the installation position of the second terminal fixing member in the second housing is accurate, and prevent internal components from rotating or shifting. The first locking block and the fastening member form a detachable locking structure, so that the first housing and the second housing can remain reliably locked after the insertion is completed, preventing the connection from separating due to vibration or external force. At the same time, the locking state can be released by pressing the member, which is convenient for later inspection, maintenance or replacement operations, ensuring connection reliability while taking into account the convenience of disassembly and assembly.

[0014] The beneficial effects of this invention are: 1. Space saving: The installation space of the original two separate components (cover and side fastener) is combined into one, which greatly saves the horizontal and vertical space on the side of the connector.

[0015] 2. Simplified structure: The number of parts is reduced, which lowers material and management costs.

[0016] 3. Improved reliability: The integrated design avoids the cumulative error of assembling separate parts, and the pressure of the cover plate on the sealing ring is more closely related to the locking state of the buckle. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is one of the structural schematic diagrams of the connector of the present invention; Figure 2 This is the second schematic diagram of the connector structure of the present invention; Figure 3 This is one of the exploded views of the connector of the present invention; Figure 4 This is one of the structural schematic diagrams of the integrated component of the present invention; Figure 5 This is the second schematic diagram of the integrated component of the present invention; Figure 6 This is a schematic diagram of the cross-sectional structure of the first sealing element of the present invention; Figure 7 This is the second exploded view of the connector of the present invention; Figure 8 This is a schematic diagram of the cross-sectional structure of the third sealing element of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the connector of the present invention.

[0020] The reference numerals in the figures include: 1. Connector body; 2. Integrated assembly; 3. First seal; 4. Second seal; 101. First housing; 102. First terminal retainer; 103. First TPA component; 104. First terminal group; 11. First connecting assembly; 111. First protrusion; 112. Third groove; 12. Second connecting assembly; 121. Second housing; 1210. Protrusion; 1211. End cap; 122. Second terminal retainer; 1220. Third protrusion; 1221. Fastening component; 123. Second TPA component; 124. Second terminal group; 125. Third seal Seal; 1251, Third convex ring; 1252, Fourth convex ring; 126, Pressing element; 127, Fifth groove; 128, Sixth groove; 13, First locking block; 201, Ring part; 202, Plate part; 203, Protrusion; 204, Fourth groove; 21, Cover body; 211, First groove; 212, Second protrusion; 22, Buckle body; 221, First stop plate; 222, Second stop plate; 223, Third stop plate; 224, Chamfer; 31, Second groove; 311, First groove part; 312, Second groove part; 32, First convex ring; 33, Second convex ring. Detailed Implementation

[0021] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0022] In the description of this application, terms such as "first" and "second" are used only to distinguish different objects, not to describe a specific order. Furthermore, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, "at least one" refers to one or more, and "multiple" refers to two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0023] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0024] In this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary," "for example," or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0025] It is understood that in this application, "when," "if," and "if" all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment action when it is implemented, nor do they imply any other limitations.

[0026] In this application, the use of singular designations for elements is intended to represent "one or more" rather than "one and only one," unless otherwise specified.

[0027] It is understood that in the embodiments of this application, "B corresponding to A" means that there is a correspondence between A and B, and B can be determined based on A. Determining B based on A does not mean that B is determined solely based on A; B can also be determined based on A and / or other information.

[0028] Reference Figures 1 to 9 A dual-row miniature waterproof connector for use around an automobile body includes a connector body 1 and an integrated component 2 for use with the connector body 1. The integrated component 2 includes a cover 21 and a buckle 22, which are integral structures. A first sealing element 3 is sandwiched between the cover 21 and the connector body 1. The cover 21 seals the end of the connector body 1 by abutting against the first sealing element 3, and the buckle 22 locks the connector body 1 to an external structure.

[0029] With the above-described structural design, during use, the connector body 1, the integrated component 2, and the first sealing element 3 work together to ensure that the integrated component 2 reliably installs and fixes the connector body 1 to the external structure while effectively sealing the end of the connector body 1. This integrates the installation locking function with the waterproof sealing function, achieving simultaneous completion of connector fixing and sealing. This effectively reduces the number of parts and assembly steps, improving product integration and assembly efficiency. At the same time, the combination of a stable locking structure and a reliable sealing structure effectively prevents external moisture, dust, and other impurities from entering the connector and reduces the adverse effects of vehicle vibration, impact, and other operating conditions on the connector's connection and sealing status. This improves the connector's waterproof performance, connection reliability, and operational stability, thus meeting the requirements for miniaturization, high reliability, and long-term protection performance of dual-row micro connectors in the confined space around the automotive body.

[0030] In this technical solution, the waterproof connector is arranged in a double row, but it is not limited to single row or multi-row.

[0031] Specifically, the first sealing element 3 is provided with a second groove 31, which penetrates the first sealing element 3 along its thickness direction. The second groove 31 includes a first groove portion 311 and a second groove portion 312 connected to the first groove portion 311. The second groove portion 312 is frustoconical in shape. The diameter of the second groove portion 312 at the end away from the first groove portion 311 is larger than the diameter of the end of the second groove portion 312 near the first groove portion 311. The end of the second groove portion 312 away from the first groove portion 311 penetrates the end face of the first sealing element 3. The second groove portion 312 has two ends located at the two ends of the first groove portion 311 along its length direction. The first groove portion 311 is located at the two second groove portions 312. Between them, the second groove 31 on the first seal 3 adopts a stepped structure formed by the connection of the first groove 311 and the second groove 312. The second groove 312 is set as a frustum shape with the opening facing outward. It can form a guiding role during the wire harness insertion process, reduce the assembly resistance between the wire harness and the seal, and avoid damage to the seal caused by the wire harness being forcibly inserted. At the same time, the frustum shape can gradually generate radial compression deformation after the wire harness enters the first groove 311, so that the seal and the outer periphery of the wire harness form a tighter fit, thereby improving the waterproof sealing performance at the wire harness through hole position, and is conducive to adapting to wire harnesses with different wire diameter ranges, improving the applicability and assembly convenience of the product.

[0032] The cross-section of the first groove 311 is circular, and the diameter of the first groove 311 is smaller than the outer diameter of the wire harness to be threaded.

[0033] Specifically, the first sealing element 3 is further provided with a first convex ring 32 and a second convex ring 33. The first convex ring 32 is located on the groove wall of the first groove 311 for radially pressing and sealing the inserted wire harness. The second convex ring 33 is located on the peripheral wall of the first sealing element 3 for interference fit with the connector body 1 or the cover 21. There are two of each type of convex ring 32 and convex ring 33. The two first convex rings 32 are located in the middle of the first sealing element 3 in the thickness direction, and the two second convex rings 33 are located at the two ends of the first sealing element 3 in the thickness direction. The first convex ring 32 on the inner wall of 11 can form multiple radial sealing contact interfaces after the wire harness is inserted, enhancing the sealing ability of the seal to cover the outer wall of the wire harness and reducing the possibility of liquid seeping into the connector along the surface of the wire harness; the second convex ring 33 on the outer peripheral wall of the first seal 3 can form multiple interference seals with the connector body 1 and the cover 21, so that the first seal 3 and the surrounding structure maintain a stable compression state, thereby improving the sealing reliability of both the wire harness side and the structure side at the same time and reducing the risk of sealing failure under long-term vibration conditions.

[0034] The two first convex rings 32 and the two second convex rings 33 are staggered in the thickness direction of the first seal 3.

[0035] Specifically, the connector body 1 is provided with a first protrusion 111, and the cover 21 is provided with a first groove 211 for accommodating the first protrusion 111. The first protrusion 111 and / or the cover 21 are made of a deformable material, and the cover 21 is fastened to the connector body 1 by the blocking cooperation between the first protrusion 111 and the first groove 211. The connector body 1 is also provided with a third groove 112, and the cover 21 is provided with a second protrusion 212 for receiving the third groove 112. The second protrusion 212 and the third groove 112 cooperate to form a foolproof positioning structure to limit the assembly direction of the cover 21 and the connector body 1. The first protrusion 111 and the first groove 211 form a snap-fit ​​connection, which allows the cover 21 to be quickly installed on the connector body 1 without additional fasteners, which helps to shorten the assembly time and reduce the number of parts. The foolproof positioning structure formed by the second protrusion 212 and the third groove 112 can uniquely limit the installation direction of the cover 21, avoiding problems such as reverse installation and misalignment during the assembly process, thereby improving the assembly accuracy and product consistency, and reducing the phenomenon of poor sealing or locking failure caused by human assembly errors.

[0036] In this technical solution, three of each of the second protrusion 212 and the third groove 112 are provided.

[0037] Specifically, the connector body 1 includes a first connecting component 11 and a second connecting component 12. The first connecting component 11 and the second connecting component 12 are respectively used to connect a first wire harness and a second wire harness to the outside world. The first connecting component 11 and the second connecting component 12 are plugged into each other for electrical connection between the two wire harnesses. The first protrusion 111 is fixedly disposed on the first connecting component 11 at the end away from the second connecting component 12. The cover 21 includes a ring portion 201 and a plate portion 202 fixedly disposed on the ring portion 201. A first groove 211 is disposed on the ring portion 201 to accommodate a first protrusion 111. A protrusion 203 is provided at the end of the plate portion 202 away from the second connecting assembly 12. The protrusion 203 protrudes from the plate portion 202 toward the side away from the second connecting assembly 12. A fourth groove 204 is provided on the protrusion 203 for external wire harnesses to pass through. The end of the plate portion 202 near the second connecting assembly 12 cooperates with the connector body 1 to clamp and abut. The first sealing element 3 and the cover 21 form a covering fit with the connector body 1 through the ring 201. The plate 202 can apply a stable clamping force to the first sealing element 3, while the fourth groove 204 on the protrusion 203 provides a centralized passage for the wire harness, so that the exit position of the wire harness is properly guided and constrained, avoiding excessive bending or deviation of the wire harness at the connector exit. At the same time, the cover 21 has both sealing and clamping functions and wire harness guiding functions, which helps to improve the neatness of the wire harness arrangement and the compactness of the overall connector structure.

[0038] Preferably, the first protrusion 111 is inclined, and the end of the first protrusion 111 near the first housing 101 of the first connecting component 11 is fixedly connected to the first housing 101. The first protrusion 111 is made of an elastic material and is S-shaped, or the first protrusion 111 has a U-shaped structure. The U-shaped structure does not protrude from the outer wall of the cover 21. Preferably, the first protrusion 111 is made of a memory material. The end of the first protrusion 111 away from the first housing 101 abuts against the groove wall of the first groove 211. The first protrusion 111 can deform along its length path, so as to elastically compensate for the positional relationship of the cover 21 relative to the first housing 101.

[0039] The plate portion 202 may be provided with an annular rib at one end near the second connecting assembly 12 to better compress and stop the first seal 3. The annular rib is continuously arranged in the circumferential direction; the height of the rib gradually increases or decreases from the center outwards; so that the first seal 3 forms a gradient compression amount.

[0040] The outer wall of the protrusion 203 has a rounded transition structure, and the end of the first groove 211 near the plate 202 passes through the ring 201.

[0041] Specifically, the fastener 22 includes a first stop plate 221 and a second stop plate 222 protruding from the outer wall of the cover 21. There are two first stop plates 221 located on the same side in the thickness direction of the cover 21. The two first stop plates 221 are arranged opposite each other and are respectively located at both ends in the length direction of the cover 21. The second stop plate 222 is located between the two first stop plates 221. The ends of the first stop plates 221 away from the cover 21 are bent and extended to form an L-shape. The two first stop plates 221 are used to limit the cover 21 in the thickness direction. The two oppositely arranged first stop plates 221 form a limiting structure in the thickness direction of the cover 21. After the connector is installed on the external mounting plate or the vehicle body mounting position, the cover 21 can be clamped and positioned on both sides to prevent the cover 21 from moving under force or vibration. Its L-shaped bending structure can improve the structural strength and deformation resistance of the stop plate itself, so that the connector can maintain a stable installation state during long-term use.

[0042] Specifically, the second stop plate 222 is located at the end of the cover 21 and / or the first stop plate 221 along its length. A third stop plate 223 is located at the end of the cover 21 and / or the first stop plate 221 away from the second stop plate 222 along its length. The first stop plate 221, the second stop plate 222, and the third stop plate 223 are all located on the same side along the thickness of the cover 21. The extension height of the third stop plate 223 is less than the extension height of the first stop plate 221. The third stop plate 223 is located away from the second stop plate 222. One end is provided with a chamfer 224. The second stop plate 222 and the third stop plate 223 cooperate to form a multi-directional limiting structure, which can further constrain the position of the connector in the installation space and improve the stability of the fit between the connector and the external installation structure. The third stop plate 223 is lower than the first stop plate 221, which can form a graded guiding effect, making it easier for the connector to be inserted into the installation position. The chamfer 224 helps to reduce assembly interference, improve the insertion performance of the connector when entering the installation hole, and make the installation process smoother.

[0043] Specifically, the connector body 1 includes a first connection component 11 and a second connection component 12. The first connection component 11 includes a first housing 101 and a first terminal fixing member 102 and a first TPA member 103 disposed in the first housing 101. The first terminal fixing member 102 is provided with a first terminal group 104, which is used to electrically connect to the first wire harness of the outside world. The second connection assembly 12 includes a second housing 121 and a second terminal fixing member 122 and a second TPA member 123 disposed within the second housing 121. The second terminal fixing member 122 is provided with a second terminal group 124, which is used to electrically connect to a second wire harness from the outside. The first terminal group 104 and the second terminal group 124 are electrically connected to conduct the connection between the two wire harnesses from the outside. The first terminal fixing member 102 and the second terminal fixing member 122 respectively position and fix the corresponding terminal groups. With the cooperation of the first TPA member 103 and the second TPA member 123, the terminals are locked in a secondary manner, which can effectively prevent the terminals from coming loose during insertion, vibration or wire harness pulling. At the same time, the first terminal group 104 and the second terminal group 124 form a stable conductive connection path, thereby improving the electrical connection reliability and long-term stability of the connector.

[0044] The first TPA member 103 is used to limit the first terminal group 104 on the first terminal fixing member 102, and the second TPA member 123 is used to limit the second terminal group 124 on the second terminal fixing member 122.

[0045] TPA stands for Terminal Position Assurance, which is a terminal position guarantee or secondary locking structure used in the connector industry to prevent terminals from detaching from the connector housing.

[0046] Specifically, the second terminal fixing member 122 is provided with a sixth groove 128. The sixth groove 128 is formed in an annular shape by recessing from the outer wall of the second terminal fixing member 122. The sixth groove 128 contains a third sealing member 125. The first housing 101 is used to be inserted into the second housing 121. The third sealing member 125 is used to seal the gap between the second terminal fixing member 122 and the first housing 101. The third seal 125 is annularly arranged. Two third convex rings 1251 are provided on the inner wall of the third seal 125, and two fourth convex rings 1252 are provided on the outer wall of the third seal 125. The two third convex rings 1251 are located at both ends in the thickness direction of the third seal 125, and the fourth convex rings 1252 are located in the middle in the thickness direction of the third seal 125. The third seal 125 does not protrude from the end face of the second terminal fixing member 122, while the fourth convex rings 1252 protrude from the end face of the second terminal fixing member 122. The third seal 125 is located in the mating area between the first housing 101 and the second terminal fixing member 122, sealing any assembly gaps that may form between them, thereby preventing moisture from entering the interior along the connector insertion interface. The third convex rings 1251 and the fourth convex rings 1252 form multiple sealing contact areas, ensuring sealing performance while compensating for assembly tolerances. This allows the seal to maintain a stable sealing effect under long-term temperature changes and vibration conditions, further improving the overall waterproof rating and environmental adaptability of the connector.

[0047] The seals in this embodiment are all made of deformable material, and the seals are preferably made of silicone rubber.

[0048] Two third protruding rings 1251 and two fourth protruding rings 1252 are staggered in the axial direction of the third seal 125. The main body of the third seal 125 is lower than the end face of the second terminal fixing member 122, and only the fourth protruding rings 1252 protrude.

[0049] Specifically, the second terminal fixing member 122 is provided with a third protrusion 1220, the second housing 121 is provided with a fifth groove 127 for accommodating the third protrusion 1220, and the second housing 121 is also provided with a protrusion 1210, which is located on the second housing 121 near the integrated component. The first housing 101 is provided with a first locking block 13, and the second terminal fixing member 122 is provided with a fastening member 1221 for cooperating with the first locking block 13. The fastening member 1221 is elastically disposed on the second terminal fixing member 122 to abut the first locking block 13 to prevent the first housing 101 from detaching from the second housing 121. The second housing 121 is also provided with a pressing member 126. The pressing member 126 deforms under pressure, which can cause the first locking block 13 to disengage from the fastening member 1221. The third protrusion 1220 and the fifth groove 127 can cooperate. It can ensure that the second terminal fixing member 122 is accurately installed in the second housing 121, and avoid internal components from rotating or shifting; the first locking block 13 and the fastening member 1221 form a detachable locking structure, so that the first housing 101 and the second housing 121 can be reliably locked after the insertion is completed, preventing the connection from separating due to vibration or external force; at the same time, the locking state can be released by pressing the member 126, which is convenient for later inspection, maintenance or replacement operations, ensuring connection reliability while taking into account the convenience of disassembly and assembly.

[0050] The second housing 121 has an opening at the protrusion 1210. The opening is used for demolding the second housing 121 and forming the protrusion 1210. The protrusion 1210 is used for easy handling.

[0051] The second housing 121 has an end cap 1211 at the end away from the integrated component 2. The second housing 121 also has a second sealing element 4 inside. The second sealing element 4 has the same structure as the first sealing element 3. The second terminal fixing element 122 works with the end cap 1211 to squeeze the second sealing element 4. The end cap 1211 has a slot for the external second wire harness to pass through.

[0052] The above descriptions provide one or more embodiments in conjunction with specific details, but do not imply that the specific implementation of the present invention is limited to these descriptions. Any methods or structures that are similar to or identical to those of the present invention, or any technical deductions or substitutions made based on the concept of the present invention, should be considered within the scope of protection of the present invention.

Claims

1. A dual-row miniature waterproof connector for use around an automobile body, comprising a connector body (1); characterized in that: It also includes an integrated component (2) for use with the connector body (1). The integrated component (2) includes a cover (21) and a buckle (22). The cover (21) and the buckle (22) are an integral structure. A first seal (3) is sandwiched between the cover (21) and the connector body (1). The cover (21) is used to seal the end of the connector body (1) by abutting the first seal (3). The buckle (22) is used to lock the connector body (1) to the external structure.

2. The dual-row miniature waterproof connector for use around an automobile body as described in claim 1, characterized in that: The first sealing element (3) is provided with a second groove (31). The second groove (31) penetrates the first sealing element (3) along the thickness direction of the first sealing element (3). The second groove (31) includes a first groove (311) and a second groove (312) connected to the first groove (311). The second groove (312) is truncated cone-shaped. The groove diameter of the second groove (312) at the end away from the first groove (311) is greater than the groove diameter of the second groove (312) at the end close to the first groove (311). The end of the second groove (312) away from the first groove (311) penetrates the end face of the first sealing element (3). The second groove (312) is provided with two ends located at the length direction of the first groove (311). The first groove (311) is located between the two second grooves (312).

3. A dual-row miniature waterproof connector for use around an automobile body as described in claim 2, characterized in that: The first sealing element (3) is also provided with a first convex ring (32) and a second convex ring (33). The first convex ring (32) is located on the groove wall of the first groove (311) for radially pressing and sealing the inserted wire harness. The second convex ring (33) is located on the peripheral wall of the first sealing element (3) for interference fit with the connector body (1) or the cover (21). There are two of each of the first convex ring (32) and the second convex ring (33). The two first convex rings (32) are located in the middle of the thickness direction of the first sealing element (3), and the two second convex rings (33) are located at the two ends of the thickness direction of the first sealing element (3).

4. A dual-row miniature waterproof connector for use around an automobile body as described in claim 2, characterized in that: The connector body (1) is provided with a first protrusion (111), and the cover (21) is provided with a first groove (211) for accommodating the first protrusion (111). The cover (21) is fastened to the connector body (1) by the blocking engagement of the first protrusion (111) and the first groove (211). The connector body (1) is also provided with a third groove (112), and the cover (21) is provided with a second protrusion (212) for being accommodated in the third groove (112). The second protrusion (212) and the third groove (112) cooperate to form a foolproof positioning structure to limit the assembly direction of the cover (21) and the connector body (1).

5. A dual-row miniature waterproof connector for use around an automobile body according to claim 4, characterized in that: The connector body (1) includes a first connecting component (11) and a second connecting component (12). The first connecting component (11) and the second connecting component (12) are respectively used to connect a first wire harness and a second wire harness to the outside world. The first connecting component (11) and the second connecting component (12) are plugged in for electrical connection between the two wire harnesses. The first protrusion (111) is fixedly disposed on the first connecting component (11) at one end away from the second connecting component (12). The cover (21) includes a ring (201) and a plate (202) fixed on the ring (201). A first groove (211) is provided on the ring (201) to accommodate a first protrusion (111). A protrusion (203) is provided at one end of the plate (202) away from the second connecting component (12). The protrusion (203) protrudes from the plate (202) toward the side away from the second connecting component (12). A fourth groove (204) is provided on the protrusion (203) for external wire harnesses to pass through. The end of the plate (202) near the second connecting component (12) cooperates with the connector body (1) to clamp and stop the first seal (3).

6. A dual-row miniature waterproof connector for use around an automobile body according to claim 1, characterized in that: The buckle (22) includes a first stop plate (221) and a second stop plate (222) protruding from the outer wall of the cover (21). There are two first stop plates (221) and they are located on the same side in the thickness direction of the cover (21). The second stop plate (222) is located between the two first stop plates (221). The two first stop plates (221) are arranged opposite to each other and are respectively located at both ends in the length direction of the cover (21). The ends of the first stop plates (221) away from the cover (21) are bent and extended to form an L shape. The two first stop plates (221) are used to limit the cover (21) in the thickness direction of the cover (21).

7. A dual-row miniature waterproof connector for use around an automobile body as described in claim 6, characterized in that: The second stop plate (222) is located at the end of the cover (21) and / or the first stop plate (221) along the length direction. The end of the cover (21) and / or the first stop plate (221) away from the second stop plate (222) along the length direction is provided with a third stop plate (223). The first stop plate (221), the second stop plate (222) and the third stop plate (223) are all located on the same side along the thickness direction of the cover (21). The extension height of the third stop plate (223) is less than the extension height of the first stop plate (221). The end of the third stop plate (223) away from the second stop plate (222) is provided with a chamfer (224).

8. A dual-row miniature waterproof connector for use around an automobile body according to claim 1, characterized in that: The connector body (1) includes a first connection component (11) and a second connection component (12). The first connection component (11) includes a first housing (101) and a first terminal fixing member (102) and a first TPA member (103) disposed in the first housing (101). The first terminal fixing member (102) is provided with a first terminal group (104). The first TPA member (103) is used to limit the first terminal group (104) on the first terminal fixing member (102). The first terminal group (104) is used to electrically connect to the first wire harness of the outside world. The second connection assembly (12) includes a second housing (121) and a second terminal fixing member (122) and a second TPA member (123) disposed in the second housing (121). The second terminal fixing member (122) is provided with a second terminal group (124). The second TPA member (123) is used to limit the second terminal group (124) on the second terminal fixing member (122). The second terminal group (124) is used to electrically connect to a second wire harness in the outside. The first terminal group (104) and the second terminal group (124) are electrically connected to conduct two wire harnesses in the outside.

9. A dual-row miniature waterproof connector for use around an automobile body as described in claim 8, characterized in that: The second terminal fixing member (122) is provided with a sixth groove (128). The sixth groove (128) is formed in a ring shape by recessing from the outer wall of the second terminal fixing member (122). The sixth groove (128) is provided with a third sealing member (125). The first housing (101) is used to be inserted into the second housing (121). The third sealing member (125) is used to seal the gap between the second terminal fixing member (122) and the first housing (101). The third seal (125) is arranged in a ring shape. The inner ring wall of the third seal (125) is provided with two third convex rings (1251) and the outer ring wall of the third seal (125) is provided with two fourth convex rings (1252). The two third convex rings (1251) are located at both ends in the thickness direction of the third seal (125), and the fourth convex rings (1252) are located in the middle in the thickness direction of the third seal (125). The third seal (125) does not protrude from the end face of the second terminal fixing member (122), and the fourth convex rings (1252) protrude from the end face of the second terminal fixing member (122).

10. A dual-row miniature waterproof connector for use around an automobile body as described in claim 8, characterized in that: The second terminal fixing member (122) is provided with a third protrusion (1220), the second housing (121) is provided with a fifth groove (127) for accommodating the third protrusion (1220), and the second housing (121) is also provided with a protrusion (1210), which is located on the second housing (121) near the integrated component. The first housing (101) is provided with a first locking block (13), and the second terminal fixing member (122) is provided with a fastening member (1221) for cooperating with the first locking block (13). The fastening member (1221) is elastically provided on the second terminal fixing member (122) to stop the first locking block (13) to prevent the first housing (101) from detaching from the second housing (121). The second housing (121) is also provided with a pressing member (126). The pressing member (126) can be deformed under pressure to make the first locking block (13) detach from the fastening member (1221).

Images