Plug assembly and connector

Abstract

The embodiment of the utility model relates to the technical field of electric connectors, and particularly discloses a plug assembly and a connector, the plug assembly comprises a shell, a plug, a cable and a first sealing member, the shell is provided with a sealing cavity, a mounting hole and a through hole, the mounting hole and the through hole are communicated with the sealing cavity, the plug comprises a plug body and a wiring terminal, the plug body is arranged in the mounting hole, and the wiring terminal is arranged in the mounting hole. The connecting terminal is located in the sealing cavity, fixed to the plug body and electrically connected with the plug body, one end of the cable is connected with the connecting terminal, the other end of the cable extends out of the shell from the through hole, the first sealing piece is located in the through hole, the cable is sleeved with the first sealing piece, and the first sealing piece abuts against the inner wall of the through hole. The first sealing member seals a gap between the outer surface of the cable and the inner wall of the through hole. The connection part of the wiring terminal and the cable is sealed and protected through the shell and the first sealing element, so that the risk of unstable electrical connection or short circuit caused by penetration of impurities such as moisture and dust is effectively reduced.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of electrical connector, in particular to a plug assembly and a connector. BACKGROUND

[0002] With the rapid development of science and technology, the safety and reliability of electrical systems are increasingly required in the industrial field, especially in the automotive industry. As an important connecting component in the electrical system, the performance and stability of the plug assembly directly affect the operation of the entire system. The plug assembly usually includes a plug body, a wiring terminal and a cable, the wiring terminal is arranged on the plug body, one end of the cable is connected to the wiring terminal, and the cable is used for transmitting electric energy and signals.

[0003] At present, the cable and the wiring terminal in the plug assembly are usually directly connected. When in a humid or dusty environment, water and impurities are easy to penetrate into the connection between the cable and the wiring terminal, causing unstable electrical connection or even short circuit, affecting the safety and reliability of the electrical system. CONTENT OF THE UTILITY MODEL

[0004] In view of the above problems, the embodiment of the present application provides a plug assembly and a connector, which overcomes the above problems or at least partially solves the above problems.

[0005] To solve the above technical problems, one technical scheme adopted by the present application is to provide a plug assembly, which comprises a shell, a plug, a cable and a first sealing member. The shell is provided with a sealing cavity, a mounting hole and a through hole, the mounting hole and the through hole are in communication with the sealing cavity, the plug comprises a plug body and a wiring terminal, the plug body is arranged in the mounting hole, the wiring terminal is located in the sealing cavity, the wiring terminal is fixed to the plug body, and the wiring terminal is electrically connected with the plug body, one end of the cable is connected with the wiring terminal, the other end of the cable extends out of the shell from the through hole, the first sealing member is located in the through hole, the first sealing member is sleeved with the cable, and the first sealing member abuts against the inner wall of the through hole, and the first sealing member seals the gap between the outer surface of the cable and the inner wall of the through hole.

[0006] In some embodiments, the through hole comprises a recessed section and a communication section, the recessed section is recessed from the outer surface of the shell towards the sealing cavity, the communication section is located at the bottom of the recessed section, the communication section communicates the recessed section and the sealing cavity, and the first sealing member is accommodated in the recessed section, and the first sealing member seals the gap between the outer surface of the cable and the inner wall of the recessed section.

[0007] In some embodiments, the first sealing member comprises a column portion and a plurality of annular protrusions, the plurality of annular protrusions are sequentially and spacedly arranged along the axial direction of the column portion, each of the plurality of annular protrusions surrounds the column portion, the column portion is provided with a through hole for the cable to pass through, and each of the plurality of annular protrusions abuts against the inner wall of the recessed section.

[0008] In some embodiments, the shell comprises a box body and a cover plate, the box body is provided with a receiving groove and the mounting hole, the cover plate covers the slot of the receiving groove to form the sealed cavity, and the cover plate is provided with the through hole.

[0009] In some embodiments, the plug assembly further comprises a second sealing member, the second sealing member is arranged at the connection between the cover plate and the box body, the second sealing member seals the connection between the cover plate and the box body, and the second sealing member surrounds the slot of the receiving groove.

[0010] In some embodiments, the box body is provided with an annular groove at the periphery of the slot of the receiving groove, the second sealing member is accommodated in the annular groove, the second sealing member partially protrudes from the annular groove, and the part of the second sealing member protruding from the annular groove abuts against the cover plate.

[0011] In some embodiments, the cover plate is provided with a first connecting hole, the box body is provided with a first screw hole, and the plug assembly further comprises a first bolt, the first bolt is used to be screwed into the first screw hole after passing through the first connecting hole to fix the cover plate and the box body.

[0012] In some embodiments, the number of the first connecting hole, the first screw hole and the first bolt is multiple, a plurality of first connecting holes are spacedly arranged along the periphery of the cover plate, a plurality of first screw holes are spacedly arranged along the periphery of the box body, and one first bolt is used to be screwed into one first screw hole after passing through one first connecting hole.

[0013] In some embodiments, the plug further comprises an elastic member, the elastic member is arranged at one end of the plug body and adjacent to the terminal, and the elastic member abuts against the inner wall of the mounting hole when the plug is connected with the shell.

[0014] To solve the above technical problems, another technical scheme adopted by the present application is to provide a connector comprising the plug assembly.

[0015] The beneficial effects of the embodiments of the present application are: different from the prior art, the plug assembly and the connector provided by the embodiments of the present application, the plug assembly comprises a shell, a plug, a cable and a first sealing member, the shell is provided with a sealing cavity, a mounting hole and a through hole, the mounting hole and the through hole are in communication with the sealing cavity, the plug comprises a plug body and a terminal, the plug body is arranged in the mounting hole, the terminal is located in the sealing cavity, the terminal is fixed to the plug body, and the terminal is electrically connected with the plug body, one end of the cable is connected with the terminal, the other end of the cable extends out of the shell from the through hole, the first sealing member is located in the through hole, the first sealing member is sleeved with the cable, and the first sealing member abuts against the inner wall of the through hole, and the first sealing member seals the gap between the outer surface of the cable and the inner wall of the through hole. The connection between the terminal and the cable is sealed and protected by the shell and the first sealing member, thereby effectively reducing the risk of unstable electrical connection or short circuit caused by moisture, dust and other impurities. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by the drawings without creative labor for those skilled in the art.

[0017] Figure 1 is a perspective view of the plug assembly provided by the embodiments of the present application;

[0018] Figure 2 is an exploded view of the plug assembly provided by the embodiments of the present application;

[0019] Figure 3 is Figure 1 is a perspective view after being cut along the cutting line AA;

[0020] Figure 4 is an exploded view of the plug, the box body and the second bolt provided by the embodiments of the present application;

[0021] Figure 5 is an exploded view of the shell, the cable, the second sealing member and the first bolt provided by the embodiments of the present application;

[0022] Figure 6 is a perspective view of the first sealing member provided by the embodiments of the present application;

[0023] Figure 7 is a perspective split view of the socket and the plug assembly provided by the embodiments of the present application. DETAILED DESCRIPTION

[0024] For the convenience of understanding the present application, the present application will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "vertical", "horizontal", "left", "right", and similar expressions used in the present specification are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used in the present specification are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the present specification are only for the purpose of describing specific embodiments of the present application and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more of the associated listed items.

[0026] Please refer to Figure 1 and Figure 2 The plug assembly 1000 includes a plug 1, a cable 2, a housing 3, and a first seal 4. The cable 2 and the plug 1 are connected with the housing 3, the cable 2 and the plug 1 are electrically connected, and the connection between the cable 2 and the plug 1 is located in the housing 3, the first seal 4 is arranged at the connection between the cable 2 and the housing 3, and the first seal 4 seals the connection between the cable 2 and the housing 3.

[0027] For the plug 1 described above, in some embodiments, please refer to Figure 2 The plug 1 includes a plug body 11 and a terminal 12, one end of the plug body 11 is used for plugging with the socket 8 or the socket of the power device, the terminal 12 is fixed to the other end of the plug body 11, and the terminal 12 is electrically connected with the plug body 11, and the terminal 12 is used for connecting with one end of the cable 2.

[0028] In some embodiments, the number of terminals 12 is two, the polarities of the two terminals 12 are different, and each is connected with a cable 2.

[0029] In some embodiments, please refer to Figure 2 and Figure 3 The plug 1 further includes an elastic member 13, the elastic member 13 is arranged at one end of the plug body 11, and the elastic member 13 is arranged adjacent to the terminal 12. When the plug 1 is connected with the housing 3, the elastic member 13 abuts against the inner wall of the mounting hole 311, and the elastic abutting force provided by the elastic member 13 makes the plug body 11 and the mounting hole 311 keep close contact, which not only enhances the stability of the plug 1 in the housing 3, but also reduces the risk of loosening of the plug 1 due to vibration or external force impact.

[0030] In some embodiments, the elastic member 13 is provided with a guide slope 131 located at one end of the elastic member 13 in contact with the inner wall of the mounting hole 311, and the guide slope 131 is inclined in the direction of insertion of the plug 1 into the mounting hole 311. During the insertion of the plug 1 into the mounting hole 311, the elastic member 13 can smoothly slide along the guide slope 131 and abut against the inner wall of the mounting hole 311, reducing the resistance during insertion and improving the convenience of installing the plug 1 in the shell 3.

[0031] In some embodiments, the number of elastic members 13 is two.

[0032] In some embodiments, the plug 1 can be a male plug or a female plug to adapt to different connection requirements.

[0033] For the above-mentioned shell 3, in some embodiments, referring to 3 to Figure 5 The shell 3 is provided with a sealing cavity 30, a mounting hole 311 and a through hole 321, the mounting hole 311 and the through hole 321 are both in communication with the sealing cavity 30, the plug body 11 is arranged in the mounting hole 311, the terminal 12 is located in the sealing cavity 30, one end of the cable 2 connected with the terminal 12 is located in the sealing cavity 30, and the other end of the cable 2 extends out of the shell 3 from the through hole 321.

[0034] In some embodiments, the shell 3 includes a box body 31 and a cover plate 32, the box body 31 is provided with a receiving groove 310 and a mounting hole 311, the cover plate 32 covers the slot of the receiving groove 310 to form a sealing cavity 30, and the cover plate 32 is provided with a through hole 321. The box body 31 and the cover plate 32 are detachably connected, and the assembly and maintenance of the plug assembly 1000. By detaching the cover plate 32, the connection between the terminal 12 and the cable 2 in the sealing cavity 30 can be conveniently overhauled, or the damaged parts can be replaced.

[0035] In some embodiments, referring to Figure 4 The plug body 11 is provided with a second connecting hole 111, and the box body 31 is provided with a second screw hole 313 around the periphery of the mounting hole 311. The plug assembly 1000 further includes a second screw 6, which is used to screw into the second screw hole 313 after passing through the second connecting hole 111 to fix the plug 1 and the box body 31.

[0036] In some embodiments, the number of second connecting holes 111, second screw holes 313 and second screws 6 is multiple, one second screw 6 is used to screw into one second screw hole 313 after passing through one second connecting hole 111, multiple second connecting holes 111 are arranged at intervals around the periphery of the plug body 11, and multiple second screw holes 313 are arranged at intervals around the periphery of the mounting hole 311.

[0037] In some embodiments, the plug assembly 1000 further comprises a third sealing member arranged at the connection between the plug body 11 and the box body 31, the third sealing member being arranged around the mounting hole 311, and the third sealing member seals the connection between the plug body 11 and the box body 31, thereby further enhancing the sealing performance of the sealed cavity 30.

[0038] In other embodiments, the box body 31 and the plug body 11 are integrated.

[0039] In some embodiments, the plug assembly 1000 further comprises a second sealing member 5 arranged at the connection between the cover plate 32 and the box body 31, the second sealing member 5 being arranged around the slot opening of the receiving groove 310, and the second sealing member 5 seals the connection between the cover plate 32 and the box body 31, thereby ensuring the sealing performance of the sealed cavity 30 and effectively reducing the risk of external moisture, dust, and the like entering the sealed cavity 30 from the connection between the cover plate 32 and the box body 31.

[0040] In some embodiments, as shown in Figure 5 , the box body 31 is provided with an annular groove 312 around the slot opening of the receiving groove 310, and the second sealing member 5 is received in the annular groove 312, and the annular groove 312 provides a stable mounting position for the second sealing member 5. The second sealing member 5 partially protrudes from the annular groove 312, and the portion of the second sealing member 5 protruding from the annular groove 312 abuts against the cover plate 32, thereby ensuring that when the cover plate 32 is connected to the box body 31, the second sealing member 5 tightly abuts against the annular groove 312 of the box body 31 and the cover plate 32, thereby forming an effective seal.

[0041] In some embodiments, the second sealing member 5 is an elastic sealing ring, and the shape and size of the elastic sealing ring are matched with the annular groove 312.

[0042] In some embodiments, as shown in Figure 5 , the cover plate 32 is provided with a first connecting hole 322, the box body 31 is provided with a first screw hole 314, and the plug assembly 1000 further comprises a first bolt 7 for being screwed into the first screw hole 314 after passing through the first connecting hole 322, thereby fixing the cover plate 32 and the box body 31. By screwing the cover plate 32 and the box body 31, not only is the disassembly and assembly facilitated, but also the connection tightness between the cover plate 32 and the box body 31 can be controlled, thereby ensuring that the second sealing member 5 is subjected to appropriate compression force, thereby maintaining the long-term sealing effect of the sealed cavity 30.

[0043] In some embodiments, the first connecting holes 322, the first screw holes 314 and the first bolts 7 are all in plurality, one first bolt 7 is used to pass through one first connecting hole 322 and is screwed into one first screw hole 314, the plurality of first connecting holes 322 are arranged along the periphery of the cover plate 32 at intervals, the plurality of first screw holes 314 are arranged along the periphery of the box body 31 at intervals, and the plurality of connecting points further enhance the stability of the connection between the cover plate 32 and the box body 31.

[0044] In some embodiments, the through hole 321 comprises a recessed section 3211 and a communication section 3212, the recessed section 3211 is recessed from the outer surface of the cover plate 32 towards the sealing cavity 30, the communication section 3212 is located at the bottom of the recessed section 3211, the communication section 3212 communicates the recessed section 3211 and the sealing cavity 30, the first sealing member 4 is accommodated in the recessed section 3211, and the first sealing member 4 seals the gap between the outer surface of the cable 2 and the inner wall of the recessed section 3211. The recessed section 3211 has a limiting and fixing effect on the first sealing member 4, so that the first sealing member 4 is stably installed in the through hole 321 of the shell 3.

[0045] For the above-mentioned first sealing member 4, in some embodiments, referring to 3 and Figure 6 , the first sealing member 4 is located in the through hole 321, the first sealing member 4 is sleeved on the cable 2, and the first sealing member 4 abuts against the inner wall of the through hole 321. The first sealing member 4 seals the gap between the outer surface of the cable 2 and the inner wall of the through hole 321, effectively reduces the risk of external moisture, dust and the like entering the sealing cavity 30 from the connection between the cable 2 and the shell 3, and realizes the moisture-proof and dust-proof function of the connection between the wiring terminal 12 and the cable 2 in the sealing cavity 30.

[0046] In some embodiments, the first sealing member 4 comprises a column portion 41 and a plurality of annular protrusions 42, the column portion 41 is provided with a through hole 410 for the cable 2 to pass through, the plurality of annular protrusions 42 are arranged on the column portion 41 along the axial direction of the column portion 41 at intervals, the plurality of annular protrusions 42 are all arranged around the column portion 41, and the plurality of annular protrusions 42 all abut against the inner wall of the through hole 321. The plurality of annular protrusions 42 form a plurality of annular sealing lines between the first sealing member 4 and the inner wall of the through hole 321, further enhancing the sealing effect.

[0047] It should be noted that, in some embodiments, the first sealing member 4, the second sealing member 5 and the third sealing member are all made of insulating elastic material, such as rubber, silicone and the like.

[0048] In the embodiment of the application, the plug assembly 1000 comprises a plug 1, a cable 2, a shell 3 and a first sealing member 4. The plug 1 comprises a plug body 11 and a terminal 12. The terminal 12 is fixed to the plug body 11 and electrically connected to the plug body 11. One end of the cable 2 is connected to the terminal 12. The shell 3 is provided with a sealing cavity 30, a mounting hole 311 and a through hole 321. The mounting hole 311 and the through hole 321 are both in communication with the sealing cavity 30. The plug body 11 is arranged in the mounting hole 311. The terminal 12 and the other end of the cable 2 are both located in the sealing cavity 30. The other end of the cable 2 extends out of the shell 3 through the through hole 321. The first sealing member 4 is located in the through hole 321 and sleeved on the cable 2. The first sealing member 4 abuts against the inner wall of the through hole 321 and seals the gap between the outer surface of the cable 2 and the inner wall of the through hole 321. By arranging the terminal 12 and the one end of the cable 2 in the sealing cavity 30 of the shell 3 and sealing the connection between the cable 2 and the shell 3 by the first sealing member 4, the connection between the terminal 12 and the cable 2 is effectively protected, the risk of short circuit, open circuit or signal attenuation caused by the invasion of external moisture, dust and the like is effectively reduced, and the reliability and service life of the plug assembly 1000 are improved.

[0049] The application provides a connector, which comprises a socket 8 and the plug assembly 1000 described above. The socket 8 and the plug assembly 1000 are detachably connected. The structure and functions of the plug assembly 1000 can be referred to the above-described embodiments, which will not be described here. Figure 7

[0050] It should be noted that the preferred embodiments of the application are given in the specification and drawings of the application, but the application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not additional limitations on the content of the application, and the purpose of providing these embodiments is to make the disclosure of the application more thorough and comprehensive. Furthermore, the above technical features continue to be combined with each other to form various embodiments not listed above, which are all considered to be within the scope of the disclosure of the application. Furthermore, those skilled in the art can make improvements or modifications based on the above description, and all these improvements and modifications should be within the protection scope of the appended claims of the application.​

Claims

1. A plug assembly, characterized by The plug assembly comprises: a housing provided with a sealed cavity, a mounting hole and a through hole, the mounting hole and the through hole both communicating with the sealed cavity; a plug comprising a plug body and a terminal, the plug body being arranged in the mounting hole, the terminal being located in the sealed cavity, the terminal being fixed to the plug body and electrically connected with the plug body; a cable, one end of the cable being connected with the terminal, the other end of the cable extending out of the housing from the through hole; a first seal, the first seal being located in the through hole, the first seal sleeving the cable and abutting against the inner wall of the through hole, the first seal sealing the gap between the outer surface of the cable and the inner wall of the through hole.

2. The plug assembly of claim 1, wherein , The through hole comprises a recessed section and a communication section, the recessed section being recessed from the outer surface of the housing towards the sealed cavity, the communication section being located at the bottom of the recessed section, the communication section communicating the recessed section and the sealed cavity, the first seal being accommodated in the recessed section, the first seal sealing the gap between the outer surface of the cable and the inner wall of the recessed section.

3. The plug assembly of claim 2, wherein , The first seal comprises a columnar portion and a plurality of annular protrusions, the plurality of annular protrusions being sequentially and spacedly arranged along the axial direction of the columnar portion, the plurality of annular protrusions all being arranged around the columnar portion, the columnar portion being provided with a through hole for the cable to pass through, the plurality of annular protrusions all abutting against the inner wall of the recessed section.

4. The plug assembly of claim 1, wherein , The housing comprises a box body and a cover plate, the box body being provided with an accommodation groove and the mounting hole, the cover plate covering the slot of the accommodation groove to form the sealed cavity, the cover plate being provided with the through hole.

5. The plug assembly of claim 4, wherein , The plug assembly further comprises a second seal, the second seal being arranged at the connection between the cover plate and the box body, the second seal sealing the connection between the cover plate and the box body, the second seal being arranged around the slot of the accommodation groove.

6. The plug assembly according to claim 5, wherein the box body is provided with an annular groove at the periphery of the slot of the accommodation groove, the second seal is accommodated in the annular groove, the second seal partially protrudes from the annular groove, and the portion of the second seal protruding from the annular groove abuts against the cover plate.

7. The plug assembly according to claim 5, wherein the cover plate is provided with a first connecting hole, and the box body is provided with a first screw hole; the plug assembly further comprises a first bolt, the first bolt being used to pass through the first connecting hole and be screwed into the first screw hole to fix the cover plate and the box body.

8. The plug assembly according to claim 7, wherein the number of the first connecting holes, the first screw holes and the first bolts is plural, the plural first connecting holes are spacedly arranged along the periphery of the cover plate, and the plural first screw holes are spacedly arranged along the periphery of the box body; one first bolt is used to pass through one first connecting hole and be screwed into one first screw hole.

9. The plug assembly according to any one of claims 1-8, wherein The plug further comprises an elastic member, which is arranged at one end of the plug body and is arranged adjacent to the terminal; When the plug is connected with the shell, the elastic member abuts against the inner wall of the mounting hole.

10. A connector characterized by comprising: A plug assembly comprising a plug according to any one of claims 1 to 9.

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