A connection structure

Abstract

The application provides a connecting structure. The connecting structure comprises a first plug, a second plug, a sealing assembly, a first wire harness, a second wire harness, a first adhesive layer and a second adhesive layer. The first plug comprises a first shell and a plurality of first pins. One end of the first shell is provided with a first cavity, and the other end is provided with a slot. The first pins are connected with the slot. The second plug comprises a second shell and a plurality of second pins corresponding to the first pins. One end of the second shell is provided with a second cavity, and the other end is provided with a plug-in protrusion. The second pins are connected with the plug-in protrusion. The plug-in protrusion is inserted into the slot, so that the first pins and the second pins are electrically connected. The sealing assembly is arranged between the slot and the plug-in protrusion. The first wire harness is arranged in the first cavity and is electrically connected with the first pins. The second wire harness is arranged in the second cavity and is electrically connected with the second pins. The first adhesive layer is filled in the first cavity. The second adhesive layer is filled in the second cavity.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a connection structure. Background Technology

[0002] In the connection of electrical equipment, appropriate connectors are usually used in conjunction with cables to install and connect the circuits, thereby enabling the electrical equipment to conduct electricity, exchange information, etc.

[0003] In related technologies, the sealing performance of male and female connectors after connection is poor, which affects the safety and reliability of the connection structure. Utility Model Content

[0004] This application provides a connection structure designed to improve the poor sealing performance of connection structures.

[0005] The specific technical solution is as follows: This application provides a connection structure, including: a first plug, comprising a first housing and a plurality of first pins, wherein one end of the first housing has a first cavity and the other end has a slot, and the first pins are connected to the slot; a second plug, comprising a second housing and a plurality of second pins corresponding one-to-one with the first pins, wherein one end of the second housing has a second cavity and the other end has a plugging protrusion, the second pins are connected to the plugging protrusion, and the plugging protrusion is inserted into the slot to electrically connect the first pins and the second pins; a sealing assembly, disposed between the slot and the plugging protrusion; a first wire harness and a second wire harness, wherein the first wire harness passes through the first cavity and is electrically connected to the first pins, and the second wire harness passes through the second cavity and is electrically connected to the second pins; a first adhesive layer, filling the first cavity; and a second adhesive layer, filling the second cavity.

[0006] The connection structure of this application includes a sealing component between the insertion protrusion and the slot, which forms a first layer of sealing protection at the connection point of the first and second pins. Furthermore, the connection structure also includes a first adhesive layer and a second adhesive layer, with the first adhesive layer filling a first cavity and the second adhesive layer filling a second cavity. The first and second adhesive layers respectively form a second layer of sealing protection at the other ends of the first and second pins. Specifically, the first adhesive layer seals the portion of the first wire harness located within the first cavity, preventing external moisture and impurities from penetrating to the connection point between the first wire harness and the first pin; the second adhesive layer seals the portion of the second wire harness located within the second cavity, preventing external moisture and impurities from penetrating to the connection point between the second wire harness and the second pin. Therefore, by providing the sealing component, the first adhesive layer, and the second adhesive layer, the sealing performance of the connection structure is improved, thereby enhancing the safety and reliability of the connection structure.

[0007] In some embodiments, the bottom wall of the slot is provided with a first insertion hole, and each first pin passes through a first insertion hole; the insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole. All the first pins have their ends away from the first wire harness located inside the first connector hole, and all the second pins have their ends away from the second wire harness protruding out of the second connector hole.

[0008] In this case, the first pin is a female pin and the first plug is a female plug; the second pin is a male pin and the second plug is a male plug.

[0009] In some embodiments, the bottom wall of the slot is provided with a first insertion hole, and each first pin passes through a first insertion hole; the insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole. All the first pins have their ends away from the first wire harness protruding from the first connector hole, and all the second pins have their ends away from the second wire harness located inside the second connector hole.

[0010] In this configuration, the first pin extends into the slot; the first pin is a male pin, and the first plug is a male plug. The second pin is a female pin, and the second plug is a female plug.

[0011] In some embodiments, the bottom of the slot is provided with a first mating portion and a plurality of first isolation portions, and a plurality of first pins are arranged around the first mating portion, and the first isolation portions are used to isolate two adjacent first pins; The side surface of the insertion protrusion near the slot is provided with a second mating part that matches the first mating part and a plurality of second isolation parts that match the first isolation part. The second isolation parts are used to isolate two adjacent second pins. The first mating part and the second mating part are non-rotationally symmetric shapes.

[0012] This design has two advantages. First, it reduces the risk of short circuits caused by contact or proximity between adjacent pins, thus improving the safety and reliability of the connection structure. It also reduces mutual interference between pins, further enhancing the accuracy and stability of signal transmission. Second, it enables a foolproof design during insertion, ensuring electrical connection between the first pin and its corresponding second pin, thereby improving the convenience and accuracy of insertion.

[0013] In some embodiments, the bottom wall of the slot is provided with a first insertion hole, and each first pin passes through a first insertion hole; the insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole; wherein; Of the plurality of first pins, a portion of the first pins protrudes from the first connector hole at the end away from the first wire harness, while the other portion of the first pins is located at the first connector hole at the end away from the first wire harness; Of the plurality of second pins, one portion of the second pin, located away from the second wire harness, is located at the second connector hole, while the other portion of the second pin, located away from the second wire harness, protrudes from the second connector hole.

[0014] This design makes both the first and second plugs hybrid plugs. Firstly, it allows for the interlocking of male and female pins, improving connection strength and reliability after insertion. Secondly, each plug contains male and female pins of varying heights, enhancing isolation between adjacent pins and improving the compactness and density of the first and second pin arrangement. Furthermore, it expands the application scenarios for both the first and second plugs.

[0015] In some embodiments, the plurality of first pins include a first female pin and a plurality of first male pins disposed around the first female pin, wherein one end of the first female pin away from the first wire harness is located at the first connector hole, and one end of the plurality of first male pins away from the first wire harness protrudes from the first connector hole; The plurality of second pins includes a second male pin and a plurality of second female pins disposed around the second male pin, wherein one end of the second male pin away from the second wire harness protrudes from the second connector hole, and one end of the plurality of second female pins away from the second wire harness is located in the second connector hole.

[0016] This design allows for the cross-interlocking design of hybrid plugs. Furthermore, the first female pin in the center and the second male pin in the center can form a positioning and guiding structure between the plug protrusion and the slot, which also improves the convenience of plugging the protrusion and the slot.

[0017] In some embodiments, the bottom of the slot is provided with a first mating part and a plurality of first isolation parts, the first mating part surrounds the first female pin, and the first isolation parts isolate two adjacent first male pins; The side surface of the insertion protrusion near the slot is provided with a second mating part that matches the first mating part and a plurality of second isolation parts that match the first isolation part. The second mating part surrounds the second male pin, and the second isolation part isolates two adjacent second female pins. A foolproof structure is provided between one of the first isolation sections and the corresponding second isolation section.

[0018] This design offers several advantages. First, it improves the ease of connection. Second, it effectively reduces short circuits caused by contact or proximity between adjacent pins, thus enhancing the safety and reliability of the connection structure. It also reduces mutual interference between pins, further improving the accuracy and stability of signal transmission. Third, it enables foolproof connection design, further enhancing both convenience and accuracy.

[0019] In some embodiments, the outer surface of the insertion protrusion is provided with a flange, and the side end face of the slot near the insertion protrusion abuts against the flange; The sealing assembly includes a first seal and a second seal. The first seal is disposed between the flange and the end face of the slot near the insertion protrusion, and the second seal is disposed between the inner wall of the slot and the outer wall of the insertion protrusion.

[0020] This design allows for sealing protection between the slot and the protrusion from two perpendicular directions, thereby improving the sealing performance after insertion.

[0021] In some embodiments, the connection structure further includes a locking element that is connected to the insertion protrusion and is capable of being unlocked or locked to the outer wall of the slot.

[0022] Therefore, on the one hand, it helps to reduce the probability of the plug protrusion and the slot detaching from each other, and on the other hand, it can further improve the sealing effect of the sealing component, thereby further improving the reliability and safety of the connection structure.

[0023] In some embodiments, the first housing includes a first sleeve and a first insertion portion detachably connected to the first sleeve, the first sleeve having the first cavity and the first insertion portion having the slot; The second housing includes a second sleeve and a second insertion portion detachably connected to the second sleeve. The second sleeve has the second cavity, and the second insertion portion has the insertion protrusion.

[0024] By designing the first and second housings as separate structures, firstly, it improves the ease of assembly of the connection structure. Secondly, it allows for flexible replacement of different specifications of connectors, quickly adapting to the connection requirements of different models, thereby improving the versatility of the connection structure and reducing mold development costs. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the connection structure provided in one embodiment of this application; Figure 2 This is a cross-sectional structural diagram of a connection structure provided in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of a first plug provided in one embodiment of this application from one perspective; Figure 4 This is a schematic diagram of the structure of a second plug (with the second sleeve and locking fastener removed) provided in an embodiment of this application from one perspective. Figure 5 A schematic diagram of the structure of a second plug provided in an embodiment of this application from another perspective; Figure 6 Another structural schematic diagram of the first plug provided in an embodiment of this application; Figure 7 This is a schematic diagram of another structure of the second plug provided in an embodiment of this application.

[0026] The annotations in the attached figures are explained as follows: 10. Connection structure; 100. First plug; 110. First housing; 111. First cavity; 112. Slot; 1121. First insertion hole; 1122. First mating part; 1123. First isolation part; 113. First sleeve; 114. First insertion part; 115. Foolproof structure; 120. First pin; 121. First female pin; 122. First male pin; 200, Second plug; 210, Second housing; 211, Second cavity; 212, Plug protrusion; 2121, Second plug hole; 2122, Second mating part; 2123, Second isolation part; 2124, Flange; 213, Second sleeve; 214, Second plug part; 220, Second pin; 221, Second male pin; 222, Second female pin; 300. First wiring harness; 400. Second wiring harness; 500. Sealing assembly; 510. First seal; 520. Second seal; 600, First adhesive layer; 700, Second adhesive layer; 800, Locking fasteners. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] like Figures 1 to 5As shown in the figure, this application embodiment proposes a connection structure 10. The connection structure 10 includes a first plug 100, a second plug 200, a first wire harness 300, a second wire harness 400, a sealing component 500, a first adhesive layer 600, and a second adhesive layer 700. The first plug 100 includes a first housing 110 and a plurality of first pins 120. One end of the first housing 110 is provided with a first cavity 111, and the other end is provided with a slot 112. The first pins 120 are connected to the slot 112. The second plug 200 includes a second housing 210 and a plurality of second pins 220 corresponding one-to-one with the first pins 120. One end of the second housing 210 is provided with a second cavity 211, and the other end is provided with a plugging protrusion 212. The second pins 220 are connected to the plugging protrusion 212, and the plugging protrusion 212 is inserted into the slot 112 to make the first pins 120 and the second pins 220 electrically connected. A first wire harness 300 passes through the first cavity 111 and is electrically connected to the first pin 120. A second wire harness 400 passes through the second cavity 211 and is electrically connected to the second pin 220. A sealing assembly 500 is disposed between the slot 112 and the insertion protrusion 212. A first adhesive layer 600 fills the first cavity 111, and a second adhesive layer 700 fills the second cavity 211.

[0032] The first plug 100 includes a first housing 110 and a first pin 120, and the second plug 200 includes a second housing 210 and a second pin 220. The first housing 110 and the second housing 210 can be made of high-strength, well-insulated engineering plastics such as polycarbonate (PC) or nylon (PA) to ensure safety and durability. The first cavity 111 of the first housing 110 is used to accommodate the first wire harness 300, and the second cavity 211 of the second housing 210 is used to accommodate the second wire harness 400. The slot 112 of the first housing 110 allows for the fixed installation of the first pin 120 within the first housing 110, and the insertion protrusion 212 of the second housing 210 allows for the fixed installation of the second pin 220 within the second housing 210. Furthermore, the insertion protrusion 212 can also be inserted into the slot 112 to achieve the insertion connection between the first plug 100 and the second plug 200. Simultaneously, after insertion, the first pin 120 and the second pin 220 can overlap, thereby achieving an electrical connection between them.

[0033] The first pin 120 and the second pin 220 can be made of materials with excellent conductivity, such as copper or copper alloys. Optionally, the surface can be tin-plated or gold-plated to further enhance conductivity and corrosion resistance. Insertion holes can be provided in the insertion protrusion 212 and the slot 112, allowing the first pin 120 and the second pin 220 to be respectively installed in the insertion holes of the slot 112 and the insertion protrusion 212.

[0034] The number of cores in the first wire harness 300 and the second wire harness 400 is determined by the electrical components used in the connection structure 10. Optionally, the first wire harness 300 and the second wire harness 400 can be three-core, four-core, five-core, or more-core wire harnesses, etc., and this application does not impose any limitations on this. It is understood that the number of cores in the first wire harness 300 and the second wire harness 400 is the same as the number of first pins 120 and second pins 220. The first wire harness 300 can be connected to multiple first pins 120 by soldering, and similarly, the second wire harness 400 can be connected to multiple second pins 220 by soldering.

[0035] The first adhesive layer 600 and the second adhesive layer 700 can be, for example, made by encapsulating the first cavity 111 and the second cavity 211 with two-component epoxy resin, respectively, and curing to form the first adhesive layer 600 and the second adhesive layer 700. The first adhesive layer 600 and the second adhesive layer 700 possess good insulation, adhesion, and temperature resistance. The first adhesive layer 600 can fully cover the connection between the first wire harness 300 and the first cavity 111, as well as the connection between the first wire harness 300 and the first pin 120, while also fixing the first wire harness 300 and the first pin 120. Similarly, the second adhesive layer 700 functions similarly to the first adhesive layer 600 within the second cavity 211.

[0036] The sealing component 500 is disposed between the insertion protrusion 212 and the slot 112. When the insertion protrusion 212 and the slot 112 are inserted into each other, the sealing component 500 is squeezed and deformed, which can tightly fill the gap between the two and effectively prevent external impurities such as water, dust, and oil from entering the connection part of the first pin 120 and the second pin 220 through the insertion position.

[0037] The connection structure 10 of this application includes a sealing component 500 between the insertion protrusion 212 and the slot 112. The sealing component 500 forms a first layer of sealing protection at the connection point of the first pin 120 and the second pin 220. Furthermore, the connection structure 10 also includes a first adhesive layer 600 and a second adhesive layer 700. The first adhesive layer 600 fills the first cavity 111, and the second adhesive layer 700 fills the second cavity 211. The first adhesive layer 600 and the second adhesive layer 700 respectively form a second layer of sealing protection at the other ends of the first pin 120 and the second pin 220. Specifically, the first adhesive layer 600 can seal the portion of the first wire harness 300 located within the first cavity 111, preventing external moisture and impurities from penetrating through the first cavity 111 to the connection point between the first wire harness 300 and the first pin 120; the second adhesive layer 700 can seal the portion of the second wire harness 400 located within the second cavity 211, preventing external moisture and impurities from penetrating through the second cavity 211 to the connection point between the second wire harness 400 and the second pin 220. Therefore, by providing the sealing assembly 500, the first adhesive layer 600, and the second adhesive layer 700, the sealing performance of the connection structure 10 is improved, thereby enhancing the safety and reliability of the connection structure 10.

[0038] In addition, by setting the first adhesive layer 600 and the second adhesive layer 700, the first pin 120, the second pin 220, the first wire harness 300 and the second wire harness 400 can be prevented from shaking during use, which also helps to improve the stability of the connection structure 10.

[0039] Furthermore, the way the slot 112 is connected to the plug protrusion 212 also helps to improve the convenience of disassembling, assembling, and maintaining the connection structure 10.

[0040] In some embodiments, such as Figure 3 and Figure 5 As shown, the bottom wall of the slot 112 is provided with a first insertion hole 1121, and each first pin 120 passes through a first insertion hole 1121. The insertion protrusion 212 is provided with a second insertion hole 2121, and each second pin 220 passes through a second insertion hole 2121. This arrangement improves the convenience of connecting the first pin 120 to the slot 112 and the second pin 220 to the insertion protrusion 212.

[0041] In some embodiments (not shown in the figures), the ends of all the first pins 120 away from the first wire harness 300 are located within the first connector hole 1121, and the ends of all the second pins 220 away from the second wire harness 400 protrude from the second connector hole 2121. It should be noted that "the ends of all the first pins 120 away from the first wire harness 300 are located within the first connector hole 1121" means that the ends of all the first pins 120 away from the first wire harness 300 can be recessed into the first connector hole 1121 or flush with the end of the first connector hole 1121; this application does not impose any limitations on this.

[0042] In this configuration, the first pin 120 is a female pin, and the first plug 100 is a female plug; the second pin 220 is a male pin, and the second plug 200 is a male plug. When the insertion protrusion 212 is inserted into the slot 112, the second pin 220 is inserted into the first insertion hole 1121, establishing an electrical connection with the first pin 120.

[0043] In some embodiments, such as Figure 3 and Figure 5 As shown, the ends of all the first pins 120 away from the first wire harness 300 protrude from the first connector hole 1121, and the ends of all the second pins 220 away from the second wire harness 400 are located inside the second connector hole 2121.

[0044] In this configuration, the first pin 120 extends into the slot 112; the first pin 120 is a male pin, and the first plug 100 is a male plug. The second pin 220 is a female pin, and the second plug 200 is a female plug. When the insertion protrusion 212 is inserted into the slot 112, the first pin 120 is inserted into the second insertion hole 2121, establishing an electrical connection with the second pin 220.

[0045] Furthermore, compared to the previous embodiment, in this embodiment, since the first pin 120 extends into the slot 112, the first pin 120 can also utilize the internal space of the slot 112. Therefore, on the one hand, it is beneficial to reduce the axial length of the first plug 100 and the second plug 200 after connection. On the other hand, the electrical connection length of the first pin 120 and the second pin 220 can be set to be longer, which also helps to reduce impedance and improve electrical connection performance.

[0046] Furthermore, it should be noted that there are multiple ways in which the first pin 120 and the second pin 220 achieve electrical connection after the insertion protrusion 212 is inserted into the slot 112. An example is provided, using the first pin 120 as a male pin and the second pin 220 as a female pin. For instance, in one embodiment, the second pin 220 is recessed within the second insertion hole 2121, and the recess depth is less than or equal to the protruding length of the first pin 120; the two are electrically connected by abutting against each other. Another example is in another embodiment, such as... Figure 5As shown, the second pin 220 is provided with a recessed groove 223 for electrical connection. The first pin 120 is directly inserted into the recessed groove 223 of the second pin 220, thereby realizing the electrical connection between the two.

[0047] In some embodiments, such as Figure 3 and Figure 5 As shown, the bottom of the slot 112 is provided with a first mating part 1122 and a plurality of first isolation parts 1123. A plurality of first pins 120 are arranged around the first mating part 1122. The first isolation parts 1123 isolate two adjacent first pins 120. The side surface of the insertion protrusion 212 near the slot 112 is provided with a second mating part 2122 that is adapted to the first mating part 1122 and a plurality of second isolation parts 2123 that are adapted to the first isolation parts 1123. The second isolation parts 2123 isolate two adjacent second pins 220.

[0048] The first mating part 1122 and the second mating part 2122 are located at the center of the slot 112 and the insertion protrusion 212, respectively. They can be connected to each other, thereby achieving positioning and guidance when the insertion protrusion 212 and the slot 112 are inserted, which helps to improve the convenience of insertion. Optionally, one of the first mating part 1122 and the second mating part 2122 is a protruding structure and the other is a recessed structure.

[0049] Furthermore, the first isolation portion 1123 and the second isolation portion 2123 are respectively used to isolate two adjacent first pins 120 and two adjacent second pins 220. It can be understood that one end of the first isolation portion 1123 is connected to the first mating portion 1122, and the other end is connected to the inner wall of the slot 112; one end of the second isolation portion 2123 is connected to the second mating portion 2122, and the other end extends to the edge of the insertion protrusion 212. By providing the first isolation portion 1123 and the second isolation portion 2123, multiple first pins 120 and second pins 220 can be effectively separated, reducing short circuits caused by contact or proximity between adjacent pins, thereby improving the safety and reliability of the connection structure 10. Simultaneously, it can also reduce mutual interference between pins, further improving the accuracy and stability of signal transmission.

[0050] In some embodiments, such as Figure 3 and Figure 5As shown, the first mating part 1122 and the second mating part 2122 are non-rotationally symmetrical. In this way, the first mating part 1122 and the second mating part 2122 not only achieve insertion positioning but also implement a foolproof design during insertion, ensuring electrical connection between the first pin 120 and the corresponding second pin 220, thereby improving the convenience and accuracy of insertion. For example, the first mating part 1122 and the second mating part 2122 can be non-centrally symmetrical letter shapes such as T-shapes, D-shapes, etc., or graphic shapes such as trapezoids, non-equilateral triangles, etc., and this application does not impose any limitations on this.

[0051] Alternatively, in some embodiments, such as Figure 3 and Figure 5 As shown, there are four first pins 120 and four second pins 220. The four first pins 120 surround the first mating part 1122, and the four second pins 220 surround the second mating part 2122. The four first pins 120 and the four second pins 220 roughly form a rectangular shape. At this time, the connection structure 10 is adapted to the connection of a four-core wire harness.

[0052] In some embodiments, such as Figure 6 and Figure 7 As shown, some of the first pins 120 have one end protruding from the first connector hole 1121 away from the first wire harness 300, while the other part of the first pins 120 have one end located inside the first connector hole 1121 away from the first wire harness 300. Similarly, some of the second pins 220 have one end located inside the second connector hole 2121 away from the second wire harness 400, while the other part of the second pins 220 have one end protruding from the second connector hole 2121 away from the second wire harness 400.

[0053] In this embodiment, the plurality of first pins 120 include both female and male pins, and the first plug 100 is a hybrid plug; correspondingly, the plurality of second pins 220 include both female and male pins, and the second plug 200 is also a hybrid plug. When the insertion protrusion 212 is inserted into the slot 112, part of the second pins 220 extends into the first insertion hole 1121, and part of the first pins 120 extends into the second insertion hole 2121, thereby realizing the electrical connection between the plurality of second pins 220 and the plurality of first pins 120.

[0054] Through the above-described hybrid plug design, firstly, it enables the cross-interlocking design of male and female pins, thereby improving the connection strength and reliability of the electrical connection after insertion. Secondly, each plug contains male and female pins of different heights, enhancing the isolation performance between adjacent male and female pins, which also helps to improve the compactness and density of the arrangement of the first pin 120 and the second pin 220. Thirdly, both the first plug 100 and the second plug 200 are hybrid plugs, which can be mutually compatible. Depending on the number of male and female pins on the first plug 100, it can also be compatible with a single type of male or female plug. Similarly, the second plug 200 can also be compatible with a single type of male or female plug, thus expanding the application scenarios of the first plug 100 and the second plug 200.

[0055] In one specific embodiment, such as Figure 6 and Figure 7 As shown, the plurality of first pins 120 include a first female pin 121 and a plurality of first male pins 122 arranged around the first female pin 121. The end of the first female pin 121 away from the first wire harness 300 is located inside the first connector hole 1121, and the ends of the plurality of first male pins 122 away from the first wire harness 300 protrude from the first connector hole 1121. The plurality of second pins 220 include a second male pin 221 and a plurality of second female pins 222 arranged around the second male pin 221. The end of the second male pin 221 away from the second wire harness 400 protrudes from the second connector hole 2121, and the ends of the plurality of second female pins 222 away from the second wire harness 400 are located inside the second connector hole 2121.

[0056] This design has two advantages. First, it allows for the interlocking of male and female pins, which improves the connection strength after insertion and thus enhances the reliability of the electrical connection. Second, the first female pin 121 located in the center and the second male pin 221 located in the center form a positioning and guiding structure between the insertion protrusion 212 and the slot 112, which also improves the ease of insertion between the insertion protrusion 212 and the slot 112.

[0057] Optionally, such as Figure 6 and Figure 7 As shown, there are five first pins 120 and five second pins 220. One first female pin 121 is located at the center of the slot 112, and four first male pins 122 are arranged around the first female pin 121. One second male pin 221 is located at the center of the insertion protrusion 212, and four second female pins 222 are arranged around the second male pin 221. In this configuration, the connection structure 10 is adapted for connecting a five-core wire harness.

[0058] In some embodiments, such as Figure 6 and Figure 7 As shown, the bottom of the slot 112 is provided with a first mating part 1122 and a plurality of first isolation parts 1123. The first mating part 1122 surrounds the first female pin 121, and the first isolation parts 1123 are used to isolate two adjacent first male pins 122. The side surface of the insertion protrusion 212 near the slot 112 is provided with a second mating part 2122 that matches the first mating part 1122 and a plurality of second isolation parts 2123 that match the first isolation parts 1123. The second mating part 2122 surrounds the second male pin 221, and the second isolation parts 2123 are used to isolate two adjacent second female pins 222. A foolproof structure 115 is provided between one of the first isolation parts 1123 and the corresponding second isolation part 2123.

[0059] This design offers several advantages. First, it improves the ease of connection. Second, by providing the first isolation part 1123 and the second isolation part 2123, multiple first pins 120 and second pins 220 can be effectively separated, reducing short circuits caused by contact or proximity between adjacent pins, thereby improving the safety and reliability of the connection structure 10. Simultaneously, it reduces mutual interference between pins, further improving the accuracy and stability of signal transmission. Third, a foolproof structure 115 is provided between one of the first isolation parts 1123 and the corresponding second isolation part 2123. The foolproof structure 115 can be, for example, a protrusion or groove of any shape. This ensures a mating connection between the corresponding first isolation parts 1123 and the second isolation part 2123, achieving a foolproof design during connection, thus improving the ease and accuracy of connection. For example, the foolproof structure 115 can be in the shape of letters such as T, D, numbers, or graphics; this application does not impose any limitations on this.

[0060] In some embodiments, such as Figure 2 As shown, the outer surface of the insertion protrusion 212 is provided with a flange 2124. The end face of the slot 112 near the insertion protrusion 212 abuts against the flange 2124. The sealing assembly 500 includes a first sealing element 510 and a second sealing element 520. The first sealing element 510 is disposed between the flange 2124 and the end face of the slot 112 near the insertion protrusion 212, and the second sealing element 520 is disposed between the inner wall of the slot 112 and the outer wall of the insertion protrusion 212. This arrangement can achieve sealing protection between the slot 112 and the insertion protrusion 212 from two perpendicular directions, thereby improving the sealing performance after insertion.

[0061] In some embodiments, such as Figure 1 , Figure 2 and Figure 5As shown, the connection structure 10 also includes a locking fastener 800, which is connected to the insertion protrusion 212 and can be unlocked or locked to the outer wall of the slot 112. By setting the locking fastener 800, after the insertion protrusion 212 and the slot 112 are inserted into each other, they can be locked by the locking fastener 800, providing a locking force. Therefore, on the one hand, it helps to reduce the probability of the insertion protrusion 212 and the slot 112 disengaging from each other, and on the other hand, it can further improve the sealing effect of the sealing assembly 500, thereby further improving the reliability and security of the connection structure 10.

[0062] Optionally, such as Figure 1 and Figure 2 As shown, the locking device 800 can be a threaded locking device, which locks the insertion protrusion 212 and the slot 112 by rotation. Of course, the locking device 800 can also be a pin locking device, which uses a pin passing through a pre-set pin hole on the insertion protrusion 212 and the slot 112 to achieve locking; or, the locking device 800 can also be a snap-fit ​​locking device, which achieves locking between the insertion protrusion 212 and the slot 112 by snap-fit ​​connection, etc., and this application does not limit it in this way.

[0063] In some embodiments, such as Figure 1 and Figure 2 As shown, the first housing 110 includes a first sleeve 113 and a first insertion part 114 detachably connected to the first sleeve 113. The first sleeve 113 has a first cavity 111 and the first insertion part 114 has a slot 112. The second housing 210 includes a second sleeve 213 and a second insertion part 214 detachably connected to the second sleeve 213. The second sleeve 213 has a second cavity 211 and the second insertion part 214 has an insertion protrusion 212.

[0064] By designing the first housing 110 and the second housing 210 as separate structures, firstly, it improves the ease of assembly of the connecting structure 10. Secondly, it allows for flexible replacement of different specifications of connectors, quickly adapting to the connection requirements of different models, thereby improving the versatility of the connecting structure 10 and reducing mold development costs.

[0065] The following describes the specific assembly process of the above-mentioned connecting structure 10: First, the first connector 114 and the second connector 214 are manufactured by injection molding. Then, the tail ends of the first pin 120 and the second pin 220 are sequentially welded to the first wire harness 300 and the second wire harness 400, with the first sleeve 113 and the second sleeve 213 pre-fitted onto the first wire harness 300 and the second wire harness 400. Next, the first sleeve 113 and the second sleeve 213 are respectively threaded into the first connector 114 and the second connector 214. Then, sealant is poured into the tail openings of the first sleeve 113 and the second sleeve 213 and allowed to cure, forming a waterproof first adhesive layer 600 and a waterproof second adhesive layer 700 at the tail ends. Finally, the first plug 100 and the second plug 200, after being filled with sealant, are interlocked and locked with a locking fastener 800 via threads. A first sealing element 510 and a second sealing element 520 are installed between the first plug 100 and the second plug 200 to achieve a seal at the connector ends.

[0066] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A connection structure, characterized in that, include: The first plug includes a first housing and a plurality of first pins. One end of the first housing is provided with a first cavity, and the other end is provided with a slot. The first pins are connected to the slot. The second plug includes a second housing and a plurality of second pins that correspond one-to-one with the first pins. One end of the second housing is provided with a second cavity and the other end is provided with a plugging protrusion. The second pins are connected to the plugging protrusion, and the plugging protrusion is inserted into the slot so that the first pins and the second pins are electrically connected. A sealing assembly is disposed between the slot and the insertion protrusion; A first wire harness and a second wire harness, wherein the first wire harness passes through the first cavity and is electrically connected to the first pin, and the second wire harness passes through the second cavity and is electrically connected to the second pin; The first adhesive layer fills the first cavity; The second adhesive layer fills the second cavity.

2. The connection structure according to claim 1, characterized in that, The slot bottom wall is provided with a first insertion hole, and each first pin passes through a first insertion hole. The insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole. All the first pins have their ends away from the first wire harness located inside the first connector hole, and all the second pins have their ends away from the second wire harness protruding out of the second connector hole.

3. The connection structure according to claim 1, characterized in that, The slot bottom wall is provided with a first insertion hole, and each first pin passes through a first insertion hole. The insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole. All the first pins have their ends away from the first wire harness protruding from the first connector hole, and all the second pins have their ends away from the second wire harness located inside the second connector hole.

4. The connection structure according to claim 3, characterized in that, The bottom of the slot is provided with a first mating part and a plurality of first isolation parts, and a plurality of first pins are arranged around the first mating part. The first isolation parts are used to isolate two adjacent first pins. The side surface of the insertion protrusion near the slot is provided with a second mating part that matches the first mating part and a plurality of second isolation parts that match the first isolation part. The second isolation parts are used to isolate two adjacent second pins. The first mating part and the second mating part are non-rotationally symmetric shapes.

5. The connection structure according to claim 1, characterized in that, The slot bottom wall is provided with a first insertion hole, and each first pin passes through a first insertion hole. The insertion protrusion is provided with a second insertion hole, and each second pin passes through a second insertion hole. Of the plurality of first pins, a portion of the first pins protrudes from the first connector hole at the end away from the first wire harness, while the other portion of the first pins is located inside the first connector hole at the end away from the first wire harness. Of the plurality of second pins, one portion of the second pins, located away from the second wire harness, is inside the second connector hole, while the other portion of the second pins, located away from the second wire harness, protrudes from the second connector hole.

6. The connection structure according to claim 5, characterized in that, The plurality of first pins include a first female pin and a plurality of first male pins disposed around the first female pin. The end of the first female pin away from the first wire harness is located at the first plug hole, and the ends of the plurality of first male pins away from the first wire harness protrude from the first plug hole. The plurality of second pins include a second male pin and a plurality of second female pins disposed around the second male pin, wherein one end of the second male pin away from the second wire harness protrudes from the second connector hole, and one end of the plurality of second female pins away from the second wire harness is located inside the second connector hole.

7. The connection structure according to claim 6, characterized in that, The bottom of the slot is provided with a first mating part and a plurality of first isolation parts. The first mating part surrounds the first female pin, and the first isolation parts isolate two adjacent first male pins. The side surface of the insertion protrusion near the slot is provided with a second mating part that matches the first mating part and a plurality of second isolation parts that match the first isolation part. The second mating part surrounds the second male pin, and the second isolation part isolates two adjacent second female pins. A foolproof structure is provided between one of the first isolation sections and the corresponding second isolation section.

8. The connection structure according to any one of claims 1-7, characterized in that, The outer surface of the insertion protrusion is provided with a flange, and the end face of the slot near the insertion protrusion abuts against the flange; The sealing assembly includes a first seal and a second seal. The first seal is disposed between the flange and the end face of the slot near the insertion protrusion, and the second seal is disposed between the inner wall of the slot and the outer wall of the insertion protrusion.

9. The connection structure according to any one of claims 1-7, characterized in that, The connection structure also includes a locking element, which is connected to the insertion protrusion and can be unlocked or locked to the outer wall of the slot.

10. The connection structure according to any one of claims 1-7, characterized in that, The first housing includes a first sleeve and a first insertion part detachably connected to the first sleeve. The first sleeve has the first cavity, and the first insertion part has the slot. The second housing includes a second sleeve and a second insertion portion detachably connected to the second sleeve. The second sleeve has the second cavity, and the second insertion portion has the insertion protrusion.

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