Waterproof connector and scooter

Abstract

The utility model provides a waterproof connector and a scooter, and relates to the technical field of waterproof connectors. The waterproof connector comprises a male end shell, a female end shell, a waterproof ring, a first waterproof wire sleeve and a second waterproof wire sleeve, the male end shell is provided with a first containing cavity, a first wire harness is configured to penetrate into the first containing cavity from the rear end of the male end shell, and the female end shell is provided with a second containing cavity. The second wire harness is configured to penetrate into the second accommodating cavity from the rear end of the female end shell; the front end of the female end shell is configured to be inserted into the first accommodating cavity from the front end of the male end shell, and the waterproof ring is arranged at the front end of the female end shell in a sleeving manner; the first end of the first waterproof wire jacket is sleeved at the rear end of the male end shell, the second end of the first waterproof wire jacket is sleeved outside the first wire harness, the first end of the second waterproof wire jacket is sleeved at the rear end of the female end shell, and the second end of the second waterproof wire jacket is sleeved outside the second wire harness. The utility model provides a waterproof connector and a scooter, which are compact in structure and strong in waterproofness.

Description

Technical Field

[0001] This utility model relates to the field of waterproof connector technology, and in particular to a waterproof connector and a scooter. Background Technology

[0002] Waterproof connectors, with their reliable protective performance, are widely used in the automotive, shipbuilding, automated production lines, new energy equipment, and security monitoring industries. Currently, waterproof connectors on the market mainly adopt plug-in, threaded, and bayonet connection methods, and can achieve various protection levels according to the needs of different application scenarios.

[0003] However, as electronic devices become smaller and more integrated, especially in emerging fields such as smart homes, portable devices, and miniature vehicles, existing waterproof connectors have revealed significant shortcomings. Their loose internal structure design results in an excessively large overall size, making them difficult to fit into confined installation spaces. Furthermore, they are prone to waterproofing failure under long-term vibration or external forces.

[0004] Therefore, there is an urgent need to develop a compact and highly sealed waterproof connector to meet the application requirements of miniaturized equipment. Utility Model Content

[0005] To address at least one of the problems mentioned in the background art, this utility model provides a waterproof connector and a scooter with a compact structure and strong waterproof performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] In a first aspect, this utility model provides a waterproof connector for sealing and connecting a first wire harness and a second wire harness, including a male end shell, a female end shell, a waterproof ring, a first waterproof wire sleeve, and a second waterproof wire sleeve. The male end shell has a first receiving cavity, and the first wire harness is configured to pass through the first receiving cavity from the rear end of the male end shell. The female end shell has a second receiving cavity, and the second wire harness is configured to pass through the second receiving cavity from the rear end of the female end shell.

[0008] The front end of the female end housing is configured to be inserted into the first receiving cavity from the front end of the male end housing. A waterproof ring is sleeved on the front end of the female end housing and is used to seal the gap at the connection between the male end housing and the female end housing.

[0009] The first end of the first waterproof sleeve is fitted onto the rear end of the male end housing, and the second end of the first waterproof sleeve is fitted onto the first wire harness to seal the gap between the first wire harness and the rear end of the male end housing. The first end of the second waterproof sleeve is fitted onto the rear end of the female end housing, and the second end of the second waterproof sleeve is fitted onto the second wire harness to seal the gap between the second wire harness and the rear end of the female end housing.

[0010] As an optional implementation, the inner wall of the first end of the first waterproof sleeve has a first annular retaining edge, and the outer wall of the rear end of the male end shell has a first annular retaining groove, with the first annular retaining edge engaging in the first annular retaining groove.

[0011] The inner wall of the first end of the second waterproof sleeve forms a second annular retaining edge, and the outer wall of the rear end of the female end shell has a second annular retaining groove, and the second annular retaining edge is engaged in the second annular retaining groove.

[0012] As an optional implementation, the cross-sectional area of ​​the second end of the first waterproof sleeve is smaller than the cross-sectional area of ​​the first end of the first waterproof sleeve, and the cross-sectional area of ​​the second end of the second waterproof sleeve is smaller than the cross-sectional area of ​​the first end of the second waterproof sleeve.

[0013] As an optional implementation, the connection between the first end and the second end of the first waterproof sleeve has a first annular groove, and the connection between the first end and the second end of the second waterproof sleeve has a second annular groove.

[0014] As an optional implementation, the cross-sections of the first annular groove and the second annular groove are circular arc-shaped.

[0015] As an optional implementation, the female end housing surface has a retaining edge, and one end of the waterproof ring abuts against the retaining edge.

[0016] As an optional implementation, the male end housing surface has a first snap-fit ​​portion, and the female end housing surface has a second snap-fit ​​portion. The first snap-fit ​​portion is configured to snap together with the second snap-fit ​​portion to prevent the female end housing and the male end housing from separating after insertion.

[0017] As an optional implementation, the first snap-fit ​​portion includes a guide slope, and the second snap-fit ​​portion includes a snap ring. The first end of the snap ring is connected to the stop edge. When the male end housing and the female end housing are inserted, the second end of the snap ring is configured to slide along the guide slope and snap onto one side of the guide slope.

[0018] As an optional implementation, it also includes a first connecting terminal and a second connecting terminal. The first connecting terminal passes through the first receiving cavity, and the second connecting terminal passes through the second receiving cavity. The first connecting terminal includes a first limiting spring, and the second connecting terminal includes a second limiting spring. The first wire harness is connected to the first connecting terminal, and the second wire is connected to the second connecting terminal. When the male end shell and the female end shell are plugged in, the first connecting terminal and the second connecting terminal are mated together to electrically connect the first wire harness and the second wire harness.

[0019] The inner wall of the first receiving cavity has a first limiting protrusion that engages with the first limiting spring, and the inner wall of the second receiving cavity has a second limiting protrusion that engages with the second limiting spring.

[0020] Secondly, this utility model also provides a scooter, including the waterproof connector of any one of the first aspects.

[0021] The waterproof connector provided by this utility model is used for sealing and connecting a first wire harness and a second wire harness. It includes a male end shell, a female end shell, a waterproof ring, a first waterproof sleeve, and a second waterproof sleeve. The male end shell has a first receiving cavity, and the first wire harness is configured to pass through the first receiving cavity from the rear end of the male end shell. The female end shell has a second receiving cavity, and the second wire harness is configured to pass through the second receiving cavity from the rear end of the female end shell. The front end of the female end shell is configured to be inserted into the first receiving cavity from the front end of the male end shell. The waterproof ring is fitted onto the front end of the female end shell to seal the gap at the connection between the male end shell and the female end shell. The first end of the first waterproof sleeve is fitted onto the rear end of the male end shell, and the second end of the first waterproof sleeve is fitted onto the first wire harness to seal the gap between the first wire harness and the rear end of the male end shell. The first end of the second waterproof sleeve is fitted onto the rear end of the female end shell, and the second end of the second waterproof sleeve is fitted onto the second wire harness to seal the gap between the second wire harness and the rear end of the female end shell.

[0022] This utility model provides a waterproof connector with a multi-seal structure design. Specifically, at the connection point of the connector, a waterproof ring is fitted onto the front end of the female end shell. When the female end shell is inserted into the first receiving cavity from the front end of the male end shell, the waterproof ring can tightly fill and seal the gap between the male and female end shells due to its good elastic deformation, effectively preventing moisture from entering. At the wire harness inlet, a first waterproof sleeve and a second waterproof sleeve are respectively provided. The first end of the first waterproof sleeve is tightly fitted onto the rear end of the male end shell, and the interference fit between the sleeve and the shell forms a strong sealing structure. The second end of the first waterproof sleeve is fitted onto the outside of the first wire harness. Through the elastic contraction characteristics of the sleeve itself, it tightly holds the first wire harness, sealing the tiny gap between the first wire harness and the rear end of the male end shell in all directions, preventing moisture from seeping through the gap between the wire harness and the shell. Similarly, the first end of the second waterproof sleeve is fitted onto the rear end of the female connector shell, and the second end is fitted onto the second wire harness. This same method tightly seals the gap between the second wire harness and the rear end of the female connector shell, ensuring the waterproof performance of the entire inlet section. This multi-seal structure design, from the connection point to the inlet, forms a complete and robust waterproof system, effectively blocking the path of moisture into the connector from all possible channels, greatly improving the waterproof performance of the connector. At the same time, this structural design eliminates the redundant and loose components and spatial layout of traditional waterproof connectors, adopting a compact and reasonable design scheme that significantly reduces the overall size, meeting the space requirements of miniaturized equipment. Attached Figure Description

[0023] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A schematic diagram of the overall structure of the waterproof connector provided in this embodiment of the utility model;

[0025] Figure 2 for Figure 1 The main view;

[0026] Figure 3 for Figure 1 A sectional view;

[0027] Figure 4 This is a first exploded view of the waterproof connector provided in an embodiment of the present utility model;

[0028] Figure 5 This is a second exploded view of the waterproof connector provided in an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100-Waterproof connector;

[0031] 110 - Male end housing; 111 - First receiving cavity; 112 - First annular groove; 113 - Guide slope; 114 - First limiting protrusion;

[0032] 120 - Female end shell; 121 - Second receiving cavity; 122 - Second annular groove; 123 - Guard edge; 124 - Snap ring; 125 - Second limiting protrusion;

[0033] 130 - Waterproof ring;

[0034] 140 - First waterproof sleeve; 141 - First annular retaining edge; 142 - First annular groove;

[0035] 150 - Second waterproof sleeve; 151 - Second annular retaining edge; 152 - Second annular groove;

[0036] 160 - First connecting terminal; 161 - First limiting spring;

[0037] 170 - Second connecting terminal; 171 - Second limiting spring. Detailed Implementation

[0038] 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.

[0039] In this application, the terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “lateral,” and “longitudinal” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this utility model and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0040] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0041] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0042] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0043] As electronic devices become smaller and more integrated, especially in emerging fields such as smart homes, portable devices, and miniature vehicles, existing waterproof connectors have revealed significant shortcomings. Their loose internal structure design results in an excessively large overall size, making them difficult to fit into confined installation spaces. Furthermore, they are prone to waterproofing failure under prolonged vibration or external forces.

[0044] In view of this, the present invention provides a waterproof connector, including a male end housing 110, a female end housing 120, a waterproof ring 130, a first waterproof sleeve 140, and a second waterproof sleeve 150. The male end housing 110 has a first receiving cavity 111, and the female end housing 120 has a second receiving cavity 121. The front end of the female end housing 120 is configured to be inserted into the first receiving cavity 111 from the front end of the male end housing 110. The waterproof ring 130 is sleeved on the front end of the female end housing 120. The first end of the first waterproof sleeve 140 is sleeved on the rear end of the male end housing 110, and the second end of the first waterproof sleeve 140 is sleeved on the outside of a first wire harness. The first end of the second waterproof sleeve 150 is sleeved on the rear end of the female end housing 120, and the second end of the second waterproof sleeve 150 is sleeved on the outside of a second wire harness. By fitting a waterproof ring 130 onto the front end of the female housing 120, the gap at the connection point of the female housing 120 and the male housing 110 can be effectively sealed. Furthermore, by providing a first waterproof sleeve 140 and a second waterproof sleeve 150, with their ends respectively fitted onto the rear end of the housing and the outside of the wire harness, and through elastic contraction and tight fit, the gaps between the first wire harness and the rear end of the male housing 110, and between the second wire harness and the rear end of the female housing 120, are sealed. This design effectively blocks the path of water intrusion into the waterproof connector from the connection point of the male housing 110 and the female housing 120, as well as the inlet, greatly improving the waterproof performance of the connector. Simultaneously, the compact layout of this waterproof connector reduces redundant space compared to traditional connectors, meeting the installation requirements of miniaturized equipment.

[0045] Figure 1 A schematic diagram of the overall structure of the waterproof connector provided in this embodiment of the utility model; Figure 2 for Figure 1 The main view; Figure 3 for Figure 1 A sectional view; Figure 4 This is a first exploded view of the waterproof connector provided in an embodiment of the present utility model; Figure 5 This is a second exploded view of the waterproof connector provided in an embodiment of the present invention.

[0046] You can refer to this. Figures 1 to 5This utility model provides a waterproof connector 100 for sealing and connecting a first wire harness and a second wire harness. It includes a male end housing 110, a female end housing 120, a waterproof ring 130, a first waterproof sleeve 140, and a second waterproof sleeve 150. The male end housing 110 has a first receiving cavity 111, and the first wire harness is configured to pass through the first receiving cavity 111 from the rear end of the male end housing 110. The female end housing 120 has a second receiving cavity 121, and the second wire harness is configured to pass through the second receiving cavity 121 from the rear end of the female end housing 120. The front end of the female end housing 120 is configured to be inserted into the first... In the receiving cavity 111, a waterproof ring 130 is fitted onto the front end of the female end housing 120, and the waterproof ring 130 is used to seal the gap at the connection between the male end housing 110 and the female end housing 120; the first end of the first waterproof sleeve 140 is fitted onto the rear end of the male end housing 110, and the second end of the first waterproof sleeve 140 is fitted onto the outside of the first wire harness to seal the gap between the first wire harness and the rear end of the male end housing 110; the first end of the second waterproof sleeve 150 is fitted onto the rear end of the female end housing 120, and the second end of the second waterproof sleeve 150 is fitted onto the outside of the second wire harness to seal the gap between the second wire harness and the rear end of the female end housing 120.

[0047] The waterproof connector 100 provided in this embodiment of the present invention adopts a multi-seal structure design. Specifically, at the connection part of the connector, a waterproof ring 130 is fitted onto the front end of the female end shell 120. When the female end shell 120 is inserted into the first receiving cavity 111 from the front end of the male end shell 110, the waterproof ring 130 can tightly fill and seal the gap at the connection between the male end shell 110 and the female end shell 120 due to its good elastic deformation, effectively preventing moisture from entering from here. At the wire harness inlet part, a first waterproof sleeve 140 and a second waterproof sleeve 150 are respectively provided. The first end of the first waterproof sleeve 140 is tightly fitted onto the rear end of the male end shell 110, and a strong sealing structure is formed by the interference fit between the sleeve and the shell. The second end of the first waterproof sleeve 140 is fitted onto the outside of the first wire harness. Through the elastic contraction characteristics of the sleeve itself, it tightly holds the first wire harness, and seals the tiny gap between the first wire harness and the rear end of the male end shell 110 in all directions, preventing moisture from seeping in through the gap between the wire harness and the shell. Similarly, the first end of the second waterproof sleeve 150 is fitted onto the rear end of the female housing 120, and the second end is fitted onto the second wire harness, thus sealing the gap between the second wire harness and the rear end of the female housing 120 in the same way, ensuring the waterproof performance of the entire inlet section. This multi-seal structure design from the connection point to the inlet section forms a complete and tight waterproof system, effectively blocking the path of moisture to enter the connector from all possible channels, greatly improving the waterproof performance of the waterproof connector 100. At the same time, this structural design eliminates the redundant and loose components and spatial layout of traditional waterproof connectors 100, adopting a compact and reasonable design scheme, significantly reducing the overall volume, and meeting the requirements of small installation space for miniaturized equipment.

[0048] In the above embodiments, the inner wall of the first end of the first waterproof sleeve 140 may have a first annular retaining edge 141, and the outer wall of the rear end of the male end shell 110 has a first annular retaining groove 112, with the first annular retaining edge 141 engaging in the first annular retaining groove 112; the inner wall of the first end of the second waterproof sleeve 150 forms a second annular retaining edge 151, and the outer wall of the rear end of the female end shell 120 has a second annular retaining groove 122, with the second annular retaining edge 151 engaging in the second annular retaining groove 122. It can be understood that the first annular retaining edge 141 of the inner wall of the first end of the first waterproof sleeve 140 can be tightly engaged with the first annular retaining groove 112 of the rear end outer wall of the male end shell 110, and the second annular retaining edge 151 of the inner wall of the first end of the second waterproof sleeve 150 can correspondingly engage with the second annular retaining groove 122 of the rear end outer wall of the female end shell 120. This design achieves dual protection through mechanical locking and elastic sealing: the elastic material of the locking edge deforms within the slot, preventing the waterproof sleeve from axially detaching through physical locking, significantly improving connection strength; simultaneously, it significantly increases the contact area between the waterproof sleeve and the outer shell compared to traditional connection methods, allowing for more thorough filling of gaps and forming a tighter sealing barrier, effectively resisting external water pressure and preventing moisture infiltration. Furthermore, this structure eliminates the need for additional fixing components, simplifying the overall construction, effectively reducing axial dimensions, and further improving the waterproof performance and structural compactness of the waterproof connector 100.

[0049] In the above embodiments, the cross-sectional area of ​​the second end of the first waterproof sleeve 140 can be smaller than the cross-sectional area of ​​the first end of the first waterproof sleeve 140, and the cross-sectional area of ​​the second end of the second waterproof sleeve 150 can be smaller than the cross-sectional area of ​​the first end of the second waterproof sleeve 150. Both the first waterproof sleeve 140 and the second waterproof sleeve 150 adopt a variable cross-section design, with the cross-sectional area of ​​their second ends (wire harness connection ends) smaller than their first ends (outer shell connection ends), resulting in an overall frustum-shaped constricted structure. The constricted structure fully utilizes the shrinkage stress of elastic materials, allowing the second end of the waterproof sleeve to fit more tightly against the surface of the wire harness, forming an adaptive clamping effect. When the wire harness undergoes slight displacement under vibration, the inner wall of the constriction will continuously compress the gap through elastic deformation, significantly enhancing the sealing contact pressure and effectively preventing moisture from penetrating along the axial direction of the wire harness. Furthermore, the large cross-sectional area of ​​the first end of the waterproof sleeve ensures the connection strength when snapped into the outer shell, while the constricted design of the second end can flexibly adapt to wire harnesses of different diameters. In miniaturized application scenarios, it can control the excess gap after the wire harness is inserted to a very small range, avoiding sealing failure caused by excessive gap between the wire harness and the sleeve, while reducing material usage and further optimizing the compactness of the overall structure.

[0050] In the above embodiments, the connection between the first and second ends of the first waterproof sleeve 140 has a first annular groove 142, and the connection between the first and second ends of the second waterproof sleeve 150 has a second annular groove 152. The first annular groove 142 at the connection between the first and second ends of the first waterproof sleeve 140 allows the second end of the first waterproof sleeve 140 to move more flexibly when facing the first wire harness. Specifically, the first annular groove 142 provides movement space for the second end of the first waterproof sleeve 140, enabling it to better coordinate with the first wire harness during movement. During this movement, the second end of the first waterproof sleeve 140 remains tightly sealed to the surface of the first wire harness, effectively ensuring waterproof performance and preventing seal failure due to the movement of the first wire harness. Similarly, the second annular groove 152 at the connection between the first and second ends of the second waterproof sleeve 150 has a similar effect, which will not be elaborated here.

[0051] In the above embodiments, the cross-sections of the first annular groove 142 and the second annular groove 152 can be arc-shaped. It is understood that the arc-shaped cross-section effectively avoids stress concentration. When the wire harness swings, it provides a smooth deformation guidance path for the waterproof sleeve, allowing the second end of the waterproof sleeve to more naturally and flexibly follow the swing of the wire harness, preventing material tearing due to unreasonable structural design. Simultaneously, the arc-shaped surface makes contact with the wire harness smoother, maintaining uniform sealing pressure during swinging, ensuring that the waterproof sleeve always fits tightly against the wire harness surface, continuously performing its sealing function, and further improving the waterproof performance and structural reliability of the waterproof connector 100.

[0052] In the above embodiments, the surface of the female end housing 120 may have a retaining edge 123, and one end of the waterproof ring 130 abuts against the retaining edge 123. Providing a retaining edge 123 on the surface of the female end housing 120 and having one end of the waterproof ring 130 abut against the retaining edge 123 can significantly improve the sealing reliability of the connection. Specifically, the retaining edge 123, as a protruding structure of the female end housing 120, not only provides a precise positioning reference for the waterproof ring 130, avoiding sealing failure due to assembly deviations, but also forms a pressing surface with the inner wall of the male end housing 110 when the female end housing 120 is inserted into the male end housing 110, forcing the waterproof ring 130 to deform in a directional manner under limited positioning, filling the gap between the housings. Since one end of the waterproof ring 130 is fixed by the retaining edge 123, its deformation stress is concentrated on the contact surface, forming a more uniform sealing pressure, significantly increasing the sealing contact area, and effectively preventing moisture infiltration. Furthermore, under vibration or external force, the retaining edge 123 physically limits the displacement of the waterproof ring 130, avoiding sealing blind spots, making it suitable for dynamic environments and maintaining a high level of protection over the long term. Secondly, this design facilitates automated assembly, improving production efficiency and reducing defect rates. In addition, by integrating the retaining edge 123 with the housing, no additional parts are needed, allowing for strict control of axial dimensions.

[0053] In the above embodiments, the surface of the male end housing 110 may have a first snap-fit ​​portion, and the surface of the female end housing 120 may have a second snap-fit ​​portion. The first snap-fit ​​portion is configured to snap together with the second snap-fit ​​portion to prevent the female end housing 120 and the male end housing 110 from separating after insertion. The first snap-fit ​​portion and the second snap-fit ​​portion are respectively provided on the surfaces of the male end housing 110 and the female end housing 120. The mechanical snap-fit ​​between the two achieves anti-separation locking after insertion, significantly improving the reliability of the connection structure. Specifically, when the female end housing 120 is inserted into the male end housing 110, the first snap-fit ​​portion and the second snap-fit ​​portion form a tight interlock through shape matching (such as barbs and slots, bosses and grooves, etc.), requiring a specific unlocking force to separate, effectively resisting accidental disengagement caused by vibration or external pulling. This snap-fit ​​structure can withstand strong axial tensile force and torsional torque. Compared with the friction locking of traditional plug-in connections, the anti-disengagement performance is significantly improved, ensuring that the waterproof ring 130 is always in an effective compressed state, avoiding sealing failure due to loose connection.

[0054] In the above embodiments, the first snap-fit ​​portion may include a guide slope 113, and the second snap-fit ​​portion includes a snap ring 124. The first end of the snap ring 124 is connected to the stop 123. When the male end housing 110 and the female end housing 120 are inserted, the second end of the snap ring 124 is configured to slide along the guide slope 113 and then snap onto one side of the guide slope 113. It can be understood that when the male end housing 110 and the female end housing 120 are inserted, the second end of the snap ring 124 slides along the guide slope 113, thereby gradually opening the second end of the snap ring 124. When it slides to one side of the guide slope 113, the snap ring 124 elastically resets and snaps into place. The guide slope 113 can reduce assembly resistance. The integrated connection between the snap ring 124 and the stop 123 enhances the structural strength. After snapping, it can withstand significant axial tensile force and torsional moment, avoiding loosening due to vibration.

[0055] In the above embodiments, a first connecting terminal 160 and a second connecting terminal 170 may also be included. The first connecting terminal 160 passes through the first receiving cavity 111, and the second connecting terminal 170 passes through the second receiving cavity 121. The first connecting terminal 160 includes a first limiting spring 161, and the second connecting terminal 170 includes a second limiting spring 171. A first wire harness is connected to the first connecting terminal 160, and a second wire is connected to the second connecting terminal 170. When the male end housing 110 and the female end housing 120 are inserted, the first connecting terminal 160 and the second connecting terminal 170 are mated together to electrically connect the first wire harness and the second wire harness. The inner wall of the first receiving cavity 111 has a first limiting protrusion 114 that engages with the first limiting spring 161, and the inner wall of the second receiving cavity 121 has a second limiting protrusion 125 that engages with the second limiting spring 171. When the male end housing 110 and the female end housing 120 are plugged in, the first connecting terminal 160 and the second connecting terminal 170 are precisely aligned to achieve electrical connection between the first wire harness and the second wire harness. At the same time, the first limiting spring 161 and the first limiting protrusion 114, and the second limiting spring 171 and the second limiting protrusion 125 are engaged with each other to limit the displacement of the connecting terminal in the receiving cavity, prevent the terminal from loosening or falling off due to vibration or external force pulling, and ensure the stability and reliability of the electrical connection. Together with the housing, waterproof sleeve and waterproof ring 130 and other structures, the overall performance of the waterproof connector 100 is improved from both mechanical fixation and electrical connection levels.

[0056] In the above embodiments, a guide structure can also be provided on the male end shell 110 and the female end shell 120. When the two are inserted, the guide structure can guide them and improve the accuracy of the insertion.

[0057] Furthermore, this utility model embodiment also provides a scooter, including the waterproof connector 100 in the above embodiment. The waterproof connector 100 includes a male end shell 110, a female end shell 120, a waterproof ring 130, a first waterproof cable sleeve 140, and a second waterproof cable sleeve 150. The male end shell 110 has a first receiving cavity 111, and a first wire harness passes through the first receiving cavity 111 from the rear end of the male end shell 110. The female end shell 120 has a second receiving cavity 121, and a second wire harness passes through the rear end of the female end shell 120. The end of the female end housing 120 is inserted into the second receiving cavity 121; the front end of the female end housing 120 is configured to be inserted into the first receiving cavity 111 from the front end of the male end housing 110; the waterproof ring 130 is sleeved on the front end of the female end housing 120; the first end of the first waterproof sleeve 140 is sleeved on the rear end of the male end housing 110; the second end of the first waterproof sleeve 140 is sleeved on the outside of the first wire harness; the first end of the second waterproof sleeve 150 is sleeved on the rear end of the female end housing 120; the second end of the second waterproof sleeve 150 is sleeved on the outside of the second wire harness.

[0058] This utility model provides a waterproof connector 100 that effectively seals the gap at the connection point of the female end shell 120 by sleeved waterproof ring 130 on the front end of the female end shell 120 and inserting the female end shell 120 into the male end shell 110. Furthermore, by providing a first waterproof sleeve 140 and a second waterproof sleeve 150, with their ends respectively sleeved on the rear end of the shell and the outside of the wire harness, they elastically contract and tightly fit together, sealing the gaps between the first wire harness and the rear end of the male end shell 110, and between the second wire harness and the rear end of the female end shell 120. This design effectively blocks the path of water intrusion into the waterproof connector 100 from the connection point of the male end shell 110 and the female end shell 120, as well as the wire inlet, greatly improving the waterproof performance of the waterproof connector 100. Simultaneously, the waterproof connector 100 with this structure has a compact layout, reducing redundant space compared to traditional connectors, and meeting the installation and waterproofing requirements of scooters.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A waterproof connector, characterized in that, For sealing and connecting a first wire harness and a second wire harness, the device includes a male end housing, a female end housing, a waterproof ring, a first waterproof wire sleeve, and a second waterproof wire sleeve. The male end housing has a first receiving cavity, and the first wire harness is configured to pass through the first receiving cavity from the rear end of the male end housing. The female end housing has a second receiving cavity, and the second wire harness is configured to pass through the second receiving cavity from the rear end of the female end housing. The front end of the female end housing is configured to be inserted into the first receiving cavity from the front end of the male end housing. The waterproof ring is sleeved on the front end of the female end housing and is used to seal the gap at the connection between the male end housing and the female end housing. The first end of the first waterproof sleeve is fitted onto the rear end of the male end housing, and the second end of the first waterproof sleeve is fitted onto the first wire harness to seal the gap between the first wire harness and the rear end of the male end housing. The first end of the second waterproof sleeve is fitted onto the rear end of the female end housing, and the second end of the second waterproof sleeve is fitted onto the second wire harness to seal the gap between the second wire harness and the rear end of the female end housing.

2. The waterproof connector according to claim 1, characterized in that, The inner wall of the first end of the first waterproof sleeve has a first annular retaining edge, and the outer wall of the rear end of the male end shell has a first annular retaining groove, and the first annular retaining edge is engaged in the first annular retaining groove; The inner wall of the first end of the second waterproof sleeve forms a second annular retaining edge, and the outer wall of the rear end of the female end shell has a second annular retaining groove, and the second annular retaining edge is engaged in the second annular retaining groove.

3. The waterproof connector according to claim 2, characterized in that, The cross-sectional area of ​​the second end of the first waterproof sleeve is smaller than the cross-sectional area of ​​the first end of the first waterproof sleeve, and the cross-sectional area of ​​the second end of the second waterproof sleeve is smaller than the cross-sectional area of ​​the first end of the second waterproof sleeve.

4. The waterproof connector according to claim 3, characterized in that, The first waterproof sleeve has a first annular groove at the connection between its first and second ends, and the second waterproof sleeve has a second annular groove at the connection between its first and second ends.

5. The waterproof connector according to claim 4, characterized in that, The cross-sections of the first annular groove and the second annular groove are circular arcs.

6. The waterproof connector according to any one of claims 1-5, characterized in that, The female end shell surface has a retaining edge, and one end of the waterproof ring abuts against the retaining edge.

7. The waterproof connector according to claim 6, characterized in that, The male end housing has a first snap-fit ​​portion on its surface, and the female end housing has a second snap-fit ​​portion on its surface. The first snap-fit ​​portion is configured to snap together with the second snap-fit ​​portion to prevent the female end housing and the male end housing from separating after being inserted.

8. The waterproof connector according to claim 7, characterized in that, The first snap-fit ​​portion includes a guide slope, and the second snap-fit ​​portion includes a snap ring. The first end of the snap ring is connected to the stop edge. When the male end housing and the female end housing are inserted, the second end of the snap ring is configured to slide along the guide slope and snap onto one side of the guide slope.

9. The waterproof connector according to any one of claims 1-5, characterized in that, It also includes a first connecting terminal and a second connecting terminal. The first connecting terminal passes through the first receiving cavity, and the second connecting terminal passes through the second receiving cavity. The first connecting terminal includes a first limiting spring, and the second connecting terminal includes a second limiting spring. The first wire harness is connected to the first connecting terminal, and the second wire is connected to the second connecting terminal. When the male end shell and the female end shell are plugged in, the first connecting terminal and the second connecting terminal are mated together to electrically connect the first wire harness and the second wire harness. The inner wall of the first receiving cavity has a first limiting protrusion that engages with the first limiting spring, and the inner wall of the second receiving cavity has a second limiting protrusion that engages with the second limiting spring.

10. A scooter, characterized in that, The waterproof connector includes any one of claims 1-9.

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