Connector

By designing a high-low difference recessed area in the first housing of the H-MTD connector and using a ribbed structure for the seal, the problem of insufficient waterproof performance of the connector is solved, achieving the effects of adhesive-free waterproofing and segmented waterproofing, and enhancing the sealing performance of the connector in humid environments.

CN223828793UActive Publication Date: 2026-01-23DACHANG ELECTRONICS TECH SUZHOU CO LTD
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Patent Information

Application Number
CN202520063700.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Priority Date
2024-08-28
Filing Date
2025-01-10
Publication Date
2026-01-23
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

The existing H-MTD connectors have insufficient waterproof performance, resulting in unstable performance in humid environments. Furthermore, the adhesive application method can lead to uneven application, affecting other components of the connector.

Method used

The first housing is designed with a first surface and a second surface with a height difference to form a recessed area, and a seal is set in the recessed area. The seal has a rib structure. The combination of the recessed area and the seal achieves tight fixation, avoids the use of waterproof adhesive, and provides segmented waterproof function.

Benefits of technology

It achieves effective waterproofing of the connector without the use of waterproof adhesive, and provides segmented waterproofing through multiple rib structures, enhancing the connector's sealing and protection capabilities in humid environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a connector which is used for connecting a paired connector. The connector comprises a first shell, a second shell, a third shell, a first contact module and a second contact module. The first shell comprises a first main body and a second main body which are connected with each other, the second main body further comprises a first surface and a second surface which are adjacent to each other, and a height difference is formed between the first surface and the second surface, so that the first main body and the second main body jointly define a concave area; the second shell comprises a second shell body and two extension arms. The third shell comprises a third shell body, two first central pipes and two second central pipes. The first contact module and the second contact module are arranged in the third shell. Wherein when the first shell is mutually jointed with a separating piece, the connector can be stably butted with a matched connector.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of connectors, especially a kind of vehicle connector with recess area and sealing piece tightly combined to achieve segmented waterproof. BACKGROUND

[0002] H-MTD connector is designed for high-speed data transmission applications, widely used in vehicle electronics, industrial automation and other fields. With the increasing demand for data transmission speed and reliability in the vehicle field, the demand for H-MTD connectors mainly used in vehicle Ethernet interface is also rising. The application scenarios in the vehicle field are often exposed to various harsh environmental conditions such as humidity or mud, so the connector must have good waterproof function to ensure the stable performance of the connector and prolong the service life.

[0003] Currently, the waterproof function of H-MTD connector is mainly achieved by using waterproof glue. The waterproof glue forms an effective waterproof barrier at the joint of the connector, preventing water from penetrating and protecting the internal electronic components, ensuring stable operation in humid environments. For example, Chinese Patent No. CN218770423U discloses an electrical connector that achieves waterproof function with the spacer by the smooth surface of the glue core and the glue coating method, however, this glue coating method is limited by the uniformity of the glue coating, too much glue coating may affect other components of the connector, and too little glue coating may reduce the sealing effect with the spacer. Therefore, this method is not an ideal waterproof technology.

[0004] Therefore, the utility model provides a kind of connector to solve the waterproof performance of the connector of prior art and the problems caused by the aforementioned connector. UTILITY MODEL CONTENT

[0005] The utility model aims to provide a kind of connector, which includes the connection combination of first shell, second shell, third shell, first contact module and second contact module. Its main feature is that the first surface and the second surface with height difference exist on the first shell, and a recess area is formed by the design of height difference. In addition, a sealing piece is also provided on the first shell, which is installed in the aforementioned recess area and has a convex rib structure to tightly engage the components of the spacer on the connector. Therefore, the connector of the utility model uses the combination of recess area and sealing piece, so that the spacer can be tightly fixed on the first shell by the sealing piece, achieving waterproof effect without any waterproof glue, and the design of multiple convex ribs also provides additional segmented waterproof function.

[0006] To achieve the above object, the utility model discloses a connector for connecting a counterpart connector. The connector comprises a first shell, a second shell, a third shell, a first contact module and a second contact module. The first shell comprises a first body and a second body connected together, the second body further comprises a first surface and a second surface adjacent to the first surface, and the first surface and the second surface form a height difference, so that the first body and the second body jointly define a recessed area. The second shell comprises a second shell body and two extension arms, and the extension arms are respectively formed on the corresponding two sides of the second shell body along a first direction. The third shell is arranged between the first shell and the second shell, and comprises a third shell body, two first center pipes and two second center pipes, and the first center pipes and the second center pipes are respectively formed on one side of the third shell body along the first direction. The first contact module is arranged in the third shell, and comprises two first inner shell pieces and two pairs of first contact pieces, and the first contact pieces are respectively correspondingly arranged in each first inner shell piece. The second contact module is arranged in the third shell, and comprises two second inner shell pieces and two pairs of second contact pieces, and the second contact pieces are respectively correspondingly arranged in each second inner shell piece. Wherein, the first body and the second body jointly define a first accommodation space, and the third shell, the first contact module and the second contact module can be partially arranged in the first accommodation space, the second shell and the third shell jointly define a second accommodation space, and another part of the first contact module and the second contact module can be arranged in the second accommodation space, and when the first shell and a partition are mutually engaged, the connector can be stably connected to the counterpart connector.

[0007] In an embodiment, the connector further comprises a sealing piece, which is sleeved on the recessed area and tightly engages with the first surface.

[0008] In an embodiment, the sealing piece further comprises a plurality of convex rib structures, which are formed around the outer side surface of the sealing piece and tightly interfere with the partition.

[0009] In an embodiment, the first body further has an extension part, which is arranged on the first body along a second direction, so that the sealing piece and the partition abut and are fixed on the first shell.

[0010] In an embodiment, the second body further has two first through holes and two second through holes, the first through holes and the second through holes are arranged in an up-down manner, the first through holes are arranged for the first center pipes, and the second through holes are arranged for the second center pipes.

[0011] In an embodiment, each first center pipe further has a first through slot, and each second center pipe further has a second through slot, and the first through slot and the second through slot are respectively arranged for the first inner shell piece and the second inner shell piece to be partially arranged.

[0012] In one embodiment, the first shell further has at least one positioning member and a plurality of abutting blocks, and the third shell further has at least one positioning slot, when the first shell, the second shell and the third shell are connected with each other, the at least one positioning member is correspondingly engaged in the at least one positioning slot, and the abutting blocks stop the third shell body.

[0013] In one embodiment, the second shell further includes two first protrusions respectively formed on inner sides of the extension arms, and the third shell further includes two second protrusions respectively formed on opposite sides of the third shell body, when the second shell and the third shell are connected with each other, the first protrusions abut and engage in the second protrusions.

[0014] In one embodiment, the connector further includes an intermediate member inserted in the third shell body to block electromagnetic interference between the first contact module and the second contact module.

[0015] In one embodiment, the first shell further has a plurality of grooves and a plurality of engaging blocks for the counterpart connector.

[0016] Other purposes of the utility model, means and implementation schemes of the utility model can be understood by those skilled in the art after referring to the accompanying drawings and the following described embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the combination of the connector, the circuit board, the partition member and the counterpart connector of one embodiment of the utility model;

[0018] Figure 2 It is a schematic view of the combination of the connector and the circuit board of one embodiment of the utility model;

[0019] Figure 3 It is an exploded schematic view of the connector of one embodiment of the utility model;

[0020] Figure 4 It is another perspective exploded schematic view of the connector of one embodiment of the utility model;

[0021] Figure 5 It is a side sectional view of the connector, the circuit board and the partition member of one embodiment of the utility model;

[0022] Figure 6 It is a side sectional view of the connector and the circuit board of one embodiment of the utility model;

[0023] Figure 7 It is a top view of the connector of one embodiment of the utility model;

[0024] Figure 8 It is a schematic view of the connector of one embodiment of the utility model;

[0025] Figure 9 This is a side view of the first housing according to an embodiment of the present invention;

[0026] Figure 10 This is a schematic diagram of the connector connection relationship according to an embodiment of the present invention; and

[0027] Figure 11 This is a side sectional view of the combination of the third housing, the first contact module, and the second contact module according to an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures

[0029] 100 connector

[0030] 200 circuit boards

[0031] 300 spacers

[0032] 400 mating connector

[0033] 1 First shell

[0034] 11 First Subject

[0035] 111 Extension

[0036] 12 Second Subject

[0037] 121 First Surface

[0038] 122 Second Surface

[0039] 123 First perforation

[0040] 124 Second perforation

[0041] 13 Positioning components

[0042] 14 Abutment Blocks

[0043] 15. Trench

[0044] 16-card assembly

[0045] 2 Second shell

[0046] 21 Second shell body

[0047] 22 Extending Arm

[0048] 23 First bump

[0049] 3 Third shell

[0050] 31 Third shell body

[0051] 32 First Central Pipe

[0052] 321 First slot

[0053] 33 Second central tube

[0054] 331 Second slot

[0055] 34 Positioning slots

[0056] 35 Second bump

[0057] 4 First Contact Module

[0058] 41 First Inner Shell

[0059] 42 First Contact

[0060] 5 Second Contact Module

[0061] 51 Second Inner Shell

[0062] 52 Second Contact

[0063] 6. Seals

[0064] 61. Convex Rib

[0065] 7. Middleware

[0066] D1 First Direction

[0067] D2 Second Direction

[0068] R depression area

[0069] S1 First Accommodation Space

[0070] S2 Second Accommodation Space. Detailed Implementation

[0071] The following embodiments will explain the content of this utility model. These embodiments are not intended to limit the implementation of this utility model to any specific environment, application, or special method described in the embodiments. Therefore, the descriptions of the embodiments are for illustrative purposes only and are not intended to limit the scope of this utility model. It should be noted that in the following embodiments and accompanying drawings, some components not directly related to this utility model have been omitted and are not shown, and the dimensional relationships between the components in the drawings are for ease of understanding only and are not intended to limit the actual scale.

[0072] Please refer to 1 to Figure 4 . Figure 1 This is a schematic diagram illustrating the combination relationship of connector 100, circuit board 200, spacer 300 and mating connector 400 in one embodiment of the present invention. Figure 2 This is a schematic diagram of the combination of connector 100 and circuit board 200 according to an embodiment of the present invention.Figure 3 and Figure 4 The images shown are exploded views of a connector 100 according to an embodiment of the present invention from different perspectives. The connector 100 is disposed on a circuit board 200, and a spacer 300 may also be disposed on the connector 100. The connector 100 can mate with a mating connector 400 (e.g., ...). Figure 1 (As shown). The connector 100 of this utility model includes a first housing 1, a second housing 2, a third housing 3, a first contact module 4, a second contact module 5, a sealing member 6, and an intermediate member 7. Specifically, the first housing 1 and the second housing 2 are disposed on the front and rear sides of the connector 100, and the third housing 3 is disposed between the first housing 1 and the second housing 2; in other words, the first housing 1, the second housing 2, and the third housing 3 are interlocked. The third housing 3 can accommodate the first contact module 4 and the second contact module 5. The sealing member 6 is sleeved on the first housing 1, and the intermediate member 7 is inserted into the third housing 3 and sandwiched between the first contact module 4 and the second contact module 5. For example, when the first housing 1 and the spacer 300 are engaged, the connector 100 can securely mate with the mating connector 400. In this embodiment, the spacer 300 is disposed on the connector 100 and can serve as a connection medium used in different environments. In other words, the spacer 300 can be used for the installation of the connector 100 in different spaces within a vehicle; its shape is merely an example and is not limited herein.

[0073] Next, we will explain the first shell 1. Please refer to the following: Figure 8 and Figure 9 . Figure 8 The diagram shown is a schematic diagram of a connector 100 according to an embodiment of the present invention. Figure 9 The image shows a side view of a first housing 1 according to an embodiment of the present invention. The first housing 1 includes a first main body 11, a second main body 12, two positioning members 13, multiple abutment blocks 14, multiple grooves 15, and multiple engaging blocks 16. The first main body 11 and the second main body 12 are interconnected. The positioning members 13 and the abutment blocks 14 are disposed on the side of the second main body 12 near the connection point between the first housing 1 and the third housing 3, providing positioning and stopping functions when the first housing 1 and the third housing 3 are engaged. The grooves 15 are disposed on the inner surface of the first main body 11, and the engaging blocks 16 are disposed on the upper and lower sides of the first main body 11. The grooves 15 and the engaging blocks 16 allow mating connectors 400 to connect, increasing the accuracy of connector 100 mating. Furthermore, the first main body 11 and the second main body 12 together define a first accommodating space S1, where the third housing 3, the first contact module 4, and the second contact module 5 can be partially disposed, such as... Figure 8As shown. It should be noted that the abutment blocks 14 in this embodiment are 14 in eight as an example, and their number and position can be adjusted according to actual connection requirements, and are not limited here.

[0074] Continuing from the above, the first body 11 also has an extension 111 extending along a second direction D2. The extension 111 extends from the left and right sides and the lower side of the first body 11 near the second body 12 along the second direction D2, forming a trapezoidal structure, so that the sealing member 6 and the spacer 300 abut against and are fixed to the first housing 1. It should be noted that in this embodiment, the extension 111 is exemplified as a single piece, and its number and position can be adjusted according to actual needs, and are not limited here. On the other hand, the second body 12 includes a first surface 121, a second surface 122, two first through holes 123, and two second through holes 124. The first surface 121 and the second surface 122 are arranged adjacent to each other and surround the outer side of the second body 12. The first surface 121 and the second surface 122 are located on different planes, forming a height difference, with the first surface 121 located on the lower plane and the second surface 122 located on the higher plane. This height difference causes the first surface 121 and the second surface 122 of the first body 11 and the second body 12 to jointly define a recessed area R. The recessed area R is formed around the first surface 121 and can be fitted with the sealing element 6. In addition, the first perforation 123 and the second perforation 124 are formed on one side of the second body 12 near the connection between the first housing 1 and the third housing 3. The first perforation 123 and the second perforation 124 are arranged vertically, with the first perforation 123 in the upper row being provided for a portion of the third housing 3, and the second perforation 124 in the lower row being provided for another portion of the third housing 3.

[0075] The second housing 2 and the third housing 3 will then be described in detail; please refer to them together. Figures 5 to 7 , Figure 10 and Figure 11 The second housing 2 includes a second housing body 21, two extension arms 22, and two first protrusions 23. The extension arms 22 are respectively formed on the left and right sides of the second housing body 21 along a first direction D1, and the first protrusions 23 are respectively formed on the inner side of the extension arms 22. The diameter of the first protrusions 23 gradually decreases along the first direction D1, presenting an oblique triangular protrusion structure, which is used for the second housing 2 and the third housing 3 to engage with each other.

[0076] The third housing 3 includes a third housing body 31, two first central tubes 32, two second central tubes 33, two positioning grooves 34, and two second protrusions 35. The first central tubes 32 and the second central tubes 33 are respectively formed along a first direction D1 on one side of the third housing body 31, such as... Figure 11As shown. In detail, each of the first central tubes 32 also has a first through groove 321, and each of the second central tubes 33 also has a second through groove 331. The first through groove 321 and the second through groove 331 can respectively allow the first contact module 4 and the second contact module 5 to pass through in a partial manner. In addition, the positioning groove 34 is formed on the side of the third housing body 31 near the first housing 1, and the second protrusions 35 are respectively formed on the opposite outer sides of the third housing body 31 near the second housing 2. The diameter of the second protrusions 35 gradually increases along the first direction D1, presenting an oblique triangular protrusion structure. The positioning groove 34 corresponds to the positioning member 13 of the first housing 1, and the second protrusion 35 corresponds to the first protrusion 23 of the second housing 2. When the first housing 1, the second housing 2, and the third housing 3 are connected to each other, the positioning member 13 of the first housing 1 is correspondingly engaged with the positioning groove 34, and the abutment block 14 stops one side of the third housing body 31. On the other hand, when the second housing 2 and the third housing 3 are connected to each other, the first protrusion 23 moves and passes through the second protrusion 35. The longest side of the diameter of the first protrusion 23 abuts and engages with the longest side of the diameter of the second protrusion 35, so that the second housing 2 can be tightly connected to the third housing 3. It should be noted that, in this embodiment, the combination of the positioning member 13 and the positioning groove 34 and the combination of the first protrusion 23 and the second protrusion 35 are respectively used as two sets as examples. Their quantity and position can be adjusted according to actual connection requirements and are not limited here.

[0077] Further explanation of the first contact module 4 and the second contact module 5. Please refer again. Figure 5 , Figure 6 and Figure 11The first contact module 4 and the second contact module 5 are disposed within the third housing 3. The first contact module 4 includes two first inner housing parts 41 and two pairs of first contact parts 42, with each pair of first contact parts 42 correspondingly inserted into each of the first inner housing parts 41. The second contact module 5 includes two second inner housing parts 51 and two pairs of second contact parts 52, with each pair of second contact parts 52 correspondingly inserted into each of the second inner housing parts 51. Specifically, the first inner housing parts 41 and the first contact parts 42 are partially inserted into the first through-groove 321 of the first central tube 32, and the second inner housing parts 51 and the second contact parts 52 are partially inserted into the second through-groove 331 of the second central tube 33. In this example, the first inner housing part 41, the first contact part 42, the second inner housing part 51, and the second contact part 52 are generally L-shaped. The pair of first contacts 42 and the pair of second contacts 52 each consist of two units, and each is a conductive terminal. One end of each terminal is electrically connected to the terminal of the mating connector 400, and the other end is electrically connected to the circuit board 200. It should be noted that in this embodiment, two first inner shells 41 and two second inner shells 51 are used as examples, and four first contacts 42 and four second contacts 52 are used as examples. The number of these contacts can be adjusted according to actual needs and is not limited here.

[0078] In this embodiment, when the first housing 1, the second housing 2, and the third housing 3 are engaged with each other, the third housing 3, the first contact module 4, and the second contact module 5 are partially disposed within the first accommodating space S1. On the other hand, the second housing 2 and the third housing 3 together define a second accommodating space S2, where another portion of the first contact module 4 and the second contact module 5 can be disposed. This configuration allows the second housing 2 to fit tightly against the third housing 3 and closes the second accommodating space S2, thus preventing the first contact 42 and the second contact 52 from contacting and interfering with other connectors.

[0079] Please refer to it again. Figure 1 , Figure 2 , Figure 6 and Figure 7The shape of the seal 6 is complementary to the recessed area R, and it is fitted onto the recessed area R and tightly engaged with the first surface 121 of the second body 12. The seal 6 includes a structure of three protruding ribs 61, which are arranged side by side and formed around the outer side of the seal 6. The protruding ribs 61 are arc-shaped, and their height is slightly higher than the second surface 122 compared to the same plane. When the seal 6 and the spacer 300 are tightly interfering, the outer side of the seal 6 and the arc-shaped surfaces of the protruding ribs 61 are the sealing points between the seal 6 and the spacer 300, and each of the protruding ribs 61 can achieve the special effect of segmented waterproofing. In detail, the seal 6 in this embodiment can be made of rubber material, so that the connection position between the first housing 1 of the connector 100 and the spacer 300 has a sealing effect, which can effectively prevent moisture and dust and other debris from entering the connector 100.

[0080] Please refer to it again. Figure 11 The intermediate component 7 is inserted into the third housing body 31 and sandwiched between the first contact module 4 and the second contact module 5, and is used to block electromagnetic interference between the first contact component 42 and the second contact component 52.

[0081] In addition, such as Figure 8 As shown, in this embodiment, the first central tube 32 and the second central tube 33 are elliptical in shape, and the corresponding first inner shell 41 and the second inner shell 51 are also elliptical in shape. Furthermore, the corresponding first through hole 123 and the second through hole 124 are also elliptical in shape. It should be noted that the number and shape of the central tube, inner shell, and through holes can be adjusted according to actual connection requirements; for example, they can be circular or rectangular polygonal designs, which are not limited here.

[0082] In summary, the connector of this utility model comprises a first housing, a second housing, and a third housing. The interlocking housings accommodate and protect internal components such as the first contact module, the second contact module, and the intermediate plate. The first housing has a first surface and a second surface with a height difference, which together define a recessed area. An elastic sealing element is then tightly disposed in the recessed area, and the ribs of the sealing element engage the spacer with the connector to form a seal. Therefore, the connector of this utility model, utilizing the combination of the recessed area and the sealing element, as well as the multiple ribs on the sealing element, provides a segmented waterproofing effect when the spacer-connected connector mates with the mating connector. Furthermore, the intermediate plate also provides protection against electromagnetic interference.

[0083] The above embodiments are merely illustrative of the implementation schemes of this utility model and to explain its technical features, and are not intended to limit the scope of protection of this utility model. Any changes or equivalent arrangements that can be easily made by those skilled in the art are within the scope of this utility model, and the scope of protection of this utility model shall be determined by the claims.

Claims

1. A connector for connecting a mating connector, characterized in that, The connector includes: A first housing includes a first body and a second body connected to each other. The second body further includes a first surface and a second surface adjacent to the first surface, and the first surface and the second surface form a height difference so that the first body and the second body together define a recessed area. A second housing includes a second housing body and two extension arms, the extension arms being formed on corresponding sides of the second housing body along a first direction; A third housing is disposed between the first housing and the second housing, and includes a third housing body, two first central tubes and two second central tubes, wherein the first central tubes and the second central tubes are respectively formed on one side of the third housing body along the first direction; A first contact module, disposed within the third housing, comprises two first inner housing members and two pairs of first contact members, the first contact members respectively passing through each of the first inner housing members; and A second contact module is disposed in the third housing and includes two second inner housing parts and two pairs of second contact parts, wherein the second contact parts are respectively disposed in each of the second inner housing parts; The first body and the second body together define a first accommodating space in which the third housing, the first contact module and the second contact module are partially disposed. The second housing and the third housing together define a second accommodating space in which another part of the first contact module and the second contact module are disposed. When the first housing and a spacer are engaged with each other, the connector can be securely connected to the mating connector.

2. The connector as described in claim 1, characterized in that, It also includes a seal that is fitted onto the recessed area and tightly engaged with the first surface.

3. The connector as described in claim 2, characterized in that, The seal also includes multiple rib structures that surround the outer surface of the seal and closely interfere with the spacer.

4. The connector as described in claim 2, characterized in that, The first body also has an extension that extends along a second direction and is disposed on the first body so that the seal and the spacer abut against and are fixed to the first housing.

5. The connector as claimed in claim 1, characterized in that, The second body also has two first through holes and two second through holes, which are arranged vertically. The first through holes are for the first central tube, and the second through holes are for the second central tube.

6. The connector as claimed in claim 1, characterized in that, Each of the first central tubes also has a first through groove, and each of the second central tubes also has a second through groove. The first through groove and the second through groove can be used for partial penetration of the first inner shell and the second inner shell, respectively.

7. The connector as claimed in claim 1, characterized in that, The first housing also has at least one positioning member and multiple abutment blocks, and the third housing also has at least one positioning groove. When the first housing, the second housing and the third housing are connected to each other, the at least one positioning member is correspondingly engaged with the at least one positioning groove, and the abutment block stops the body of the third housing.

8. The connector as claimed in claim 1, characterized in that, The second housing also includes two first protrusions formed on the inner side of the extension arm, and the third housing also includes two second protrusions formed on opposite sides of the third housing body. When the second housing and the third housing are connected to each other, the first protrusions abut against and engage with the second protrusions.

9. The connector as claimed in claim 1, characterized in that, It also includes an intermediate component inserted into the third housing body to block electromagnetic interference between the first contact module and the second contact module.

10. The connector as claimed in claim 1, characterized in that, The first housing also has multiple grooves and multiple engaging blocks for the mating connector to be positioned.

Citation Information

Patent Citations

  • Electric connector and electric connector assembly

    CN218770423U