A waterproof electrical connector

By incorporating sealing rubber gaskets and bent pins into the electrical connector, the waterproofing issue of the electrical connector in harsh environments is solved, achieving a highly waterproof electrical connector design.

CN224438054UActive Publication Date: 2026-06-30SHENYANG XINGHUA HWA YICK RAIL-TRAFFIC-ELECTRICAL APPL

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG XINGHUA HWA YICK RAIL-TRAFFIC-ELECTRICAL APPL
Filing Date
2025-06-19
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

With the miniaturization and integration of railway equipment, electrical connectors require more contact points and need to adapt to harsh environments, making it difficult for existing technologies to effectively achieve waterproofing.

Method used

A waterproof electrical connector was designed, including a plug, a mounting housing, and a socket. An IP67 protection rating is ensured by placing a sealing rubber gasket between the plug and the chassis panel, and by placing bent pins between the socket and the printed circuit board, using screw connections and rubber sealing rings.

Benefits of technology

It significantly improves the waterproof performance of electrical connectors, ensuring normal operation in harsh environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of electrical connector technology, and more particularly to a waterproof electrical connector. The waterproof electrical connector includes a plug, the first end of which is connected to a cable; a mounting housing, mounted on the second end of the plug, the end of which is connected to the panel of a chassis, a sealing rubber gasket being provided between the end face of the mounting housing and the panel of the chassis, and a communication port being provided in the center of the mounting housing; and a socket, mounted on the second end of the plug, the socket containing a bent pin, the socket extending out of the mounting housing through the communication port, and the socket passing through the panel to electrically connect with the printed circuit board of the chassis. This waterproof electrical connector solves the problem of how to make an electrical connector waterproof.
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Description

Technical Field

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

[0002] With the rapid development of the railway industry, in order to increase the interior space of train carriages and improve carrying capacity, more and more equipment is being moved from in-car installation to under-car installation, while also requiring the equipment to be miniaturized and integrated.

[0003] However, with changes in the installation environment and the requirements for miniaturization and integration, the connectors installed on the equipment for electrical connections not only need more contact points, but also need to adapt to harsh environments. Therefore, waterproofing has become an important requirement for electrical connectors. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a waterproof electrical connector to solve the problem of how to make an electrical connector waterproof.

[0005] According to this utility model, a waterproof electrical connector is provided, comprising: a plug, the first end of which is connected to a cable; a mounting housing, mounted on the second end of the plug, the end of which is connected to the panel of a chassis, a sealing rubber gasket being provided between the end face of the mounting housing and the panel of the chassis, and a communication port being provided in the center of the mounting housing; and a socket, mounted on the second end of the plug, the socket having a bent pin, the socket extending out of the mounting housing through the communication port, and the socket passing through the panel and electrically connecting to the printed circuit board of the chassis.

[0006] Preferably, the plug includes: a plug housing, through which the cable passes; a plug insulator disposed at a first end of the plug housing, the plug insulator being connected to the socket, the cable being installed on the plug insulator after crimping a terminal; and a cable fixing frame component connected to the plug insulator, the cable fixing frame component being installed inside the plug housing, the cable being fixed to the cable fixing frame component, and cable shielding being installable on the cable fixing frame component.

[0007] Preferably, a waterproof cable connector is provided at the second end of the plug housing, and the cable passes through the waterproof cable connector into the plug housing.

[0008] Preferably, the cable fixing frame component includes: a base on which the plug insulator is mounted; a cover plate on which the plug insulator is disposed, and the cover plate is sandwiched between the base and the cover plate; and a cable fixing plate connected to the base, wherein the cable fixing plate has a plurality of mounting holes for mounting cable ties, the cable is fixed to the cable fixing plate by cable ties, and the cable shield is mounted on the cable fixing plate.

[0009] Preferably, a rectangular socket is provided in the center of the base and the cover plate, the plug insulator passes through the rectangular socket, and the end of the plug insulator is provided with a protruding edge, which is clamped and fixed between the base and the cover plate.

[0010] Preferably, the wire fixing plate is provided with connecting plates at both ends, the extension direction of the connecting plates is perpendicular to the extension direction of the wire fixing plate, and the connecting plates are connected to the ends of the base in the length direction.

[0011] Preferably, the corner of the plug housing is provided with a protrusion, and the corner of the base is installed to the protrusion by a threaded connector.

[0012] Preferably, the mounting housing is connected to the socket housing, and a rubber sealing ring is provided between the mounting housing and the socket housing.

[0013] Preferably, the socket includes: a socket insulator, partially extending out of the communication port of the mounting housing, the bent pin being disposed within the socket insulator; and a mounting base, disposed at both ends along the length of the socket insulator, the mounting base being connected to the mounting housing and the printed circuit board.

[0014] Preferably, the mounting base includes a first plate surface and a second plate surface that are perpendicular to each other. Threaded holes are provided on the first plate surface and the second plate surface. The first plate surface is mounted to the mounting housing by screws, and the second plate surface is mounted to the printed circuit board by screws.

[0015] The waterproof electrical connector of this embodiment has a plug whose first end is connected to a cable. A mounting housing is installed on the second end of the plug. The end of the mounting housing is connected to the panel of a chassis. A sealing rubber gasket is provided between the end face of the mounting housing and the panel of the chassis, and a connecting port is provided in the center of the mounting housing. A socket is installed on the second end of the plug. The socket has a bent pin, which extends out of the mounting housing through the connecting port and passes through the panel to electrically connect with the printed circuit board of the chassis. This design can greatly improve the waterproof performance of the electrical connector, thereby effectively solving the problem of how to make the electrical connector waterproof.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the waterproof electrical connector according to this utility model installed in the chassis.

[0019] Figure 2 This is a schematic diagram of a waterproof electrical connector according to the present invention.

[0020] Figure 3 This is a schematic diagram of the plug of the waterproof electrical connector according to this utility model.

[0021] Figure 4 This is a partial structural diagram of the plug of the waterproof electrical connector according to the present invention.

[0022] Figure 5 This is a schematic diagram of the plug insulator of the waterproof electrical connector according to this utility model.

[0023] Figure 6 This is a schematic diagram of the plug housing of the waterproof electrical connector according to the present invention.

[0024] Figure 7 This is a schematic diagram of the mounting housing of the waterproof electrical connector according to the present invention.

[0025] Figure 8 This is a schematic diagram of the socket of the waterproof electrical connector according to the present invention.

[0026] Reference numerals: 1-Plug; 11-Plug housing; 110-Waterproof cable connector; 111-Protrusion; 12-Plug insulator; 120-Raised edge; 13-Wire fixing frame component; 131-Base; 132-Cover plate; 133-Wire fixing plate; 134-Connecting plate; 2-Mounting housing; 20-Connecting port; 21-Sealing rubber gasket; 22-Rubber sealing ring; 3-Socket; 30-Socket insulator; 31-Bent pin; 32-Mounting base; 4-Face panel; 5-Printed circuit board. Detailed Implementation

[0027] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0028] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0029] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0030] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0031] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0032] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0033] The terminology used herein is for the purpose of describing various examples only and is not intended to limit the examples. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0034] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0035] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0036] This utility model provides a waterproof electrical connector, such as Figures 1 to 8 As shown, the waterproof electrical connector includes a plug 1, a mounting housing 2, and a socket 3.

[0037] In the following description, reference will be made to Figures 1 to 8 The specific structure of the aforementioned components of the waterproof electrical connector and the connection relationship of these components are described in detail.

[0038] like Figures 1 to 8 As shown, in this embodiment, the waterproof electrical connector can be connected to a chassis (which can be the chassis of a control cabinet). The first end of the plug 1 (which can be, for example,...) Figure 1 The right end shown can be connected to a cable (not shown). The mounting housing 2 can be installed on the second end of the plug 1 (which can be, for example,...). Figure 1(As shown on the left). The end of the mounting housing 2 can be connected to the panel 4 of the chassis. A sealing rubber gasket 21 can be provided between the end face of the mounting housing 2 and the panel 4 to ensure the IP67 protection level between the mounting housing 2 and the panel 4. A connecting port 20 can be provided in the center of the mounting housing 2. A socket 3 can be installed at the second end of the plug 1, and a bent pin 31 is provided in the socket 3. The socket 3 can extend out of the mounting housing 2 through the connecting port 20 and pass through the panel 4 to electrically connect with the printed circuit board 5 of the chassis. This configuration can further improve the waterproof performance of the waterproof electrical connector.

[0039] Preferred, such as Figures 1 to 6 As shown, in this embodiment, the plug 1 may include a plug housing 11, a plug insulator 12, and a wire-fixing frame component 13. The plug housing 11 may be made of aluminum alloy to ensure the structural strength of the waterproof electrical connector. The cable can be inserted into the plug housing 11 to achieve electrical connection with the socket 3. The plug insulator 12 may be disposed at the first end of the plug housing 11 (e.g., [missing information - likely a specific type of insulator]). Figure 3 (As shown on the left end). The plug insulator 12 can be connected to the socket 3. The cable can be installed in the plug insulator 12 after stripping and crimping the terminals. The cable retainer 13 can be connected to the plug insulator 12. The cable retainer 13 can be installed inside the plug housing 11, and the cable can be fixed to the cable retainer 13. In addition, cable shielding can also be installed on the cable retainer 13.

[0040] Specifically, such as Figures 3 to 6 As shown, in this embodiment, the cable fixing frame component 13 may include a base 131, a cover plate 132, and a cable fixing plate 133. The base 131 may be approximately a rectangular frame, and the plug insulator 12 may be approximately cuboid in shape. The plug insulator 12 can be mounted on the base 131. The cover plate 132 can cover the side of the base 131 near the cable fixing plate 133, clamping and fixing the plug insulator 12 between the cover plate 132 and the base 131. The cable fixing plate 133 can be connected to the base 131. The cable fixing plate 133 may have multiple square mounting holes for mounting cable ties. Cables passing through the plug housing 11 can be fixed to the cable fixing plate 133 using cable ties. The cable fixing plate 133 may also be provided with screw holes and screws. The cable shield can be fixed on the cable fixing plate 133 after the circular terminal is crimped, so that the cable shield is connected to the cable fixing plate 133 and the cable fixing frame component 13 is connected to the plug housing 11, thereby achieving shielding treatment.

[0041] Furthermore, preferably, such as Figures 3 to 6As shown, in this embodiment, a rectangular socket may be provided in the center of the base 131 and the cover plate 132. The plug insulator 12 can pass through the rectangular socket. A protruding edge 120 may be formed at the end of the plug insulator 12 along its length. The protruding edge 120 can be clamped and fixed between the base 131 and the cover plate 132, thereby fixing the plug insulator 12 to the wire frame component 13.

[0042] Further optimized, such as Figures 3 to 6 As shown, in this embodiment, connecting plates 134 may be provided at both ends of the wire fixing plate 133, and the connecting plates 134 may be integrally formed with the wire fixing plate 133. The extending direction of the connecting plates 134 may be perpendicular to the extending direction of the wire fixing plate 133. The ends of the connecting plates 134 and the base 131 in the longitudinal direction may be connected by screws.

[0043] Preferred, such as Figures 3 to 6 As shown, in this embodiment, an approximately cuboid-shaped receiving cavity can be formed inside the plug housing 11 to accommodate the cable fixing frame component 13 and the cable. Protrusions 111 can be provided at the corners of the plug housing 11 (i.e., the receiving cavity). The corners of the base 131 can be mounted to the protrusions 111 via threaded connectors (which may be screws). This arrangement facilitates the installation and removal of the cable fixing frame component 13 by the operator. When construction is required, the operator can pull the cable fixing frame component 13 out of the plug housing 11.

[0044] In addition, preferred, such as Figures 1 to 7 As shown, in this embodiment, the mounting housing 2 and the socket 3 housing can be connected by screws. A rubber sealing ring 22 can also be provided between the mounting housing 2 and the socket 3 housing to ensure the IP67 protection rating between the plug 1 and the socket 3. At the second end of the plug housing 11 (which can be as follows...), Figure 3 The right end (as shown) may be provided with a waterproof cable connector 110 to effectively protect the cable. The cable can pass through the waterproof cable connector 110 into the plug housing 11.

[0045] Preferred, such as Figure 1 , Figure 2 and Figure 8As shown, in this embodiment, the socket 3 may include a socket insulator 30 and a mounting base 32. The socket insulator 30 may partially extend out of the communication port 20 of the mounting housing 2. The bent pin 31 may be disposed within the socket insulator 30 to accommodate multi-core electrical connection points. The socket 3 may be soldered to the printed circuit board 5 to ensure reliable connection structure and vibration resistance. The mounting base 32 may be disposed at both ends along the length of the socket insulator 30, and the mounting housing 2 and the printed circuit board 5 may be connected to the mounting base 32.

[0046] Furthermore, preferably, such as Figure 1 , Figure 2 and Figure 8 As shown, in this embodiment, the mounting base 32 can be integrally formed with the socket insulator 30. The mounting base 32 may include a first plate and a second plate that are perpendicular to each other. Threaded holes may be provided on the first plate and the second plate. The first plate can be mounted to the mounting housing 2 with screws, thereby fixing the socket insulator 30 to the mounting housing 2. The second plate can be mounted to the printed circuit board 5 with screws, thereby improving the connection strength between the printed circuit board 5 and the socket insulator 30.

[0047] During use, the mounting housing 2 of the waterproof electrical connector is connected to the panel 4 of the chassis, and a sealing rubber gasket 21 is provided between the end face of the mounting housing 2 and the panel 4 to ensure the IP67 protection rating between the mounting housing 2 and the panel 4. A connecting port 20 is provided in the center of the mounting housing 2, through which the socket 3 extends from the mounting housing 2 and passes through the panel 4 to electrically connect with the printed circuit board 5 of the chassis. This configuration further improves the waterproof performance of the waterproof electrical connector. The use of screws to connect all components of the waterproof electrical connector ensures reliable contact.

[0048] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A waterproof electrical connector, connected to a chassis, characterized in that, The waterproof electrical connector includes: A plug, the first end of which is connected to a cable; A mounting housing is installed at the second end of the plug. The end of the mounting housing is connected to the panel of the chassis. A sealing rubber gasket is provided between the end face of the mounting housing and the panel of the chassis. A communication port is provided in the center of the mounting housing. A socket is installed at the second end of the plug. The socket is provided with a bent pin. The socket extends out of the mounting housing through the communication port. The socket passes through the panel and is electrically connected to the printed circuit board of the chassis.

2. The waterproof electrical connector of claim 1, wherein, The plug includes: A plug housing, into which the cable passes; A plug insulator is disposed at the first end of the plug housing, the plug insulator is connected to the socket, and the cable is installed on the plug insulator after crimping the terminal; A cable fixing frame is connected to the plug insulator. The cable fixing frame is installed inside the plug housing. The cable is fixed to the cable fixing frame. Cable shielding can be installed on the cable fixing frame.

3. The waterproof electrical connector of claim 2, wherein, A waterproof cable connector is provided at the second end of the plug housing, and the cable passes through the waterproof cable connector into the plug housing.

4. The waterproof electrical connector of claim 2, wherein, The wire frame component includes: A base, on which the plug insulator is mounted; A cover plate is disposed on the base, and the plug insulator is sandwiched between the cover plate and the base; and A cable fixing plate is connected to the base. The cable fixing plate has multiple mounting holes for installing cable ties. The cable is fixed to the cable fixing plate by cable ties, and the cable shield is installed on the cable fixing plate.

5. The waterproof electrical connector of claim 4, wherein, A rectangular socket is provided in the center of the base and the cover plate. The plug insulator passes through the rectangular socket. The end of the plug insulator is provided with a protruding edge. The protruding edge is clamped and fixed between the base and the cover plate.

6. The waterproof electrical connector of claim 4, wherein, The wire fixing plate has connecting plates at both ends, and the extension direction of the connecting plates is perpendicular to the extension direction of the wire fixing plate. The connecting plates are connected to the ends of the base in the length direction.

7. The waterproof electrical connector of claim 4, wherein, The corner of the plug housing is provided with a protrusion, and the corner of the base is installed to the protrusion by a threaded connector.

8. The waterproof electrical connector of claim 2, wherein, The mounting housing is connected to the socket housing, and a rubber sealing ring is provided between the mounting housing and the socket housing.

9. The waterproof electrical connector of claim 1, wherein, The socket includes: A socket insulator, partially extending from the communication port of the mounting housing, wherein the bent pin is disposed within the socket insulator; and Mounting bases are disposed at both ends along the length of the socket insulator, and the mounting bases are connected to the mounting housing and the printed circuit board.

10. The waterproof electrical connector of claim 9, wherein, The mounting base includes a first plate and a second plate that are perpendicular to each other. Threaded holes are provided on the first plate and the second plate. The first plate is mounted to the mounting housing by screws, and the second plate is mounted to the printed circuit board by screws.