CN215816613U - Waterproof electric connector - Google Patents

Abstract

An electrical connector includes a first insulator, a second insulator, a terminal, an annular housing, and a cable assembly. The first insulator has a through opening. The second insulating part is connected with the first insulating part. The connecting terminal is arranged at the through opening, wherein the connecting terminal is provided with an extending part which is arranged at the first side of the second insulating part close to the first insulating part. The annular shell is arranged around the first insulating part and forms a groove with the first insulating part and the second insulating part. The cable assembly is provided with a cable and is electrically connected with the wiring terminal.

Description

Waterproof electric connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector with waterproof function.

Background

With the development of science and technology, electrical equipment is an indispensable part of modern civilized life, and electrical connectors are used as a bridge for signal transmission between electrical equipment, such as network cable sockets (RJ-45), telephone line sockets (RJ-11), Universal Serial Bus (USB), and FireWire (IEEE1394/FireWire) which are all filled in various corners of urban life.

However, since each electrical connector transmits electrical signals through the electrical connector, when the electrical connector is affected by moisture, oil or dust in the external environment, the electrical signals will be severely interfered, resulting in unstable signal transmission process or even causing the circuit to be corroded by moisture, which results in failure/failure of transmission. In addition, because of the convenience of the mobile electronic device, users often carry their electronic products to use in various outdoor locations, and therefore when needing to connect other devices through the electrical connector, they need to pay attention to the protection of the electrical connector itself, so as to avoid the poor user experience.

Therefore, in order to solve the above problems, the present invention provides a waterproof and dustproof electrical connector, which not only provides better user experience for users, but also improves the service life of the electrical connector.

SUMMERY OF THE UTILITY MODEL

An electrical connector is provided in an embodiment of the present invention. The electric connector comprises a first insulating piece, a second insulating piece, a wiring terminal, an annular shell and a cable assembly. The first insulator has a through opening. The second insulating part is connected with the first insulating part. The connecting terminal is arranged at the through opening, wherein the connecting terminal is provided with an extending part which is arranged at the first side of the second insulating part close to the first insulating part. The annular shell is arranged around the first insulating part and forms a groove with the first insulating part and the second insulating part. The cable assembly is provided with a cable and is electrically connected with the wiring terminal.

In one embodiment, the terminal further includes a terminal soldering portion disposed on a second side of the second insulating member opposite to the first side.

In one embodiment, the cable assembly has a covering housing for covering the terminal welding portion, the end of the cable electrically connected to the connection terminal, the groove and the second side of the second insulating member.

In one embodiment, the electrical connector further includes a waterproof adhesive member disposed in the groove.

In one embodiment, the cover of the electrical connector with the waterproof adhesive member covers the terminal welding portion, one end of the cable electrically connected with the connection terminal, and the second side of the second insulating member.

In one embodiment, the cable assembly has a cable fixing member for fixing the cable to the second side of the second insulating member opposite to the first side.

In one embodiment, the annular housing is a metal housing.

In one embodiment, the annular housing has a housing welding portion disposed on the second side of the second insulating member opposite to the first side.

In one embodiment, the cable assembly has a cable connector disposed at the other end opposite to the electrical connection between the cable and the terminal.

In one embodiment, the first insulating member is annularly provided with an annular guide groove, and the electrical connector further comprises a waterproof rubber ring arranged in the annular guide groove.

In one embodiment, the first insulator is provided with one or more screw-locking holes.

In one embodiment, it is an RJ45 interface electrical connector.

The electric connector of the embodiment can achieve the waterproof effect of different degrees through the annular shell, the waterproof rubber piece, the waterproof rubber ring, the cladding outer cover and other parts. In addition, when the annular housing is made of metal material, the effect of shielding electromagnetic wave interference can be achieved. Therefore, the electric connector can achieve excellent waterproof and dustproof effects and protect the electric connector from being influenced by severe environment. Therefore, when wires of electrical equipment need to be connected in a humid environment, stable transmission can be achieved by matching the waterproof electric connector provided by the utility model. In addition, due to its simple structure, a good waterproof effect can be achieved at low cost.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1A is a schematic diagram of an electrical connector according to an embodiment of the utility model.

Fig. 1B is a schematic diagram of an electrical connector according to an embodiment of the utility model.

Fig. 2A is an exploded view of an electrical connector according to an embodiment of the utility model.

Fig. 2B is an exploded view of a cable assembly according to an embodiment of the utility model.

Fig. 2C is a schematic diagram of an electrical connector component according to an embodiment of the utility model.

Fig. 2D is a schematic diagram of an electrical connector component according to an embodiment of the utility model.

Fig. 3A is a schematic top view of an electrical connector according to an embodiment of the utility model.

Fig. 3B is a schematic cross-sectional view of an electrical connector according to an embodiment of the utility model.

Fig. 3C is a schematic cross-sectional view of an electrical connector according to an embodiment of the utility model.

Fig. 3D is a schematic cross-sectional view of an electrical connector according to an embodiment of the utility model.

Fig. 4A is a schematic view of an electrical connector according to an embodiment of the utility model.

Fig. 4B is a cross-sectional view of an electrical connector according to an embodiment of the utility model.

Fig. 4C is a cross-sectional view of an electrical connector according to an embodiment of the utility model.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the utility model. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1A, fig. 1A is a schematic view illustrating an electrical connector 100 according to an embodiment of the utility model. The electrical connector 100 may be a network cable socket (RJ-45), a telephone line socket (RJ-11), a Universal Serial Bus (USB), a FireWire (IEEE1394/FireWire), etc. and may be used to interface various serial interfaces of other cables or devices, which is not limited by the utility model. For convenience of illustration, the drawings of the present invention are described in detail with respect to a network jack (RJ-45) connector as an example.

In fig. 1A, it can be seen that the electrical connector 100 has a first insulating member 110, a wire connecting terminal 120, a Cable (Cable) assembly 130, a covering housing 140, a ring-shaped housing 150 and a screw locking hole 160 in appearance. The first insulating member 110 is made of a plastic material such as Polycarbonate (PC), for example. The terminal 120 is a metal strip, and may be made of copper alloy having excellent conductivity, such as phosphor bronze. The cover 140 may be made of an insulating material such as plastic. The annular housing 150 may be made of metal.

The screw locking hole 160 is a through hole for receiving a common fixing member such as a screw, and is configured to enhance the connection stability to the external electrical device, so as to prevent the connection from being interrupted due to external force collision or other external factors. It should be understood that although the screw locking hole 160 provided in the present invention is in the form of a through hole, the screw locking hole 160 is only provided to enhance the fixing between the electrical connector 100 and an external product, and a person skilled in the art can replace the screw locking hole with a conventional fixing technology or a multi-type combined component, such as a snap, a magnetic absorption, and the like.

In addition, although only two screw locking holes 160 are illustrated and disposed in a point-symmetric manner, the number and positions thereof are only for illustration and not for limitation. For example, the electrical connector 100 may be provided with only one screw locking hole 160 or three or more screw locking holes 160 according to actual requirements. The shape, number and angle of the screw holes 160 can be adjusted according to the actual requirement.

To more clearly illustrate the application of the electrical connector 100 of the present invention, please refer to fig. 1B, wherein fig. 1B is a schematic diagram illustrating a connection manner between the electrical connector 100 and an external cable 200 according to an embodiment of the present invention. The first insulator 110 has a through opening 1102, and the through opening 1102 is used for connecting the external cable 200. In fig. 1B, the port 1102 is a slot port that receives an external cable 200, such as in the form of a network cable plug (Registered jack). It should be understood, however, that the external cable 200 is only used to aid the description of the present invention, and is not a necessary component of the product of the present invention, and the model of the external cable 200 and the shape design of the through opening 1102 of the electrical connector 100 can be modified according to actual requirements. For example, when the target external cable 200 is a Universal Serial Bus (USB) type cable, the through port 1102 of the electrical connector 100 may be designed as a rectangular slot suitable for USB access.

Still further, although fig. 1B shows that the through hole 1102 of the electrical connector 100 is a female socket (accept) and the external cable 200 is a male socket (Plug), the through hole 1102 may be designed as a male socket and the external cable 200 is a female socket, which is not limited by the utility model.

For a more detailed description of the components covered by the electrical connector 100, please refer to fig. 2A-2D. Fig. 2A is an exploded view of the electrical connector 100 according to an embodiment of the utility model. The electrical connector 100 further has a second insulating member 112, a waterproof rubber member 170, and a waterproof rubber ring 180. The second insulating member 112 may be made of a plastic material such as Polycarbonate (PC) as the first insulating member 110. It should be understood, however, that the first insulator 110 and the second insulator 112 may be separate components or may be two parts of an integrally formed component. Referring to fig. 2B, fig. 2B is an exploded view (exploded view) of the cable assembly 130 according to an embodiment of the utility model. The cable assembly 130 can be further divided into a cable 132, a first cable fixing member 134, a second cable fixing member 136 and a cable connector 138.

The cables 132 of the cable assembly 130 may be transmission lines such as twisted pair, coaxial cable, and cable, for example. The wire terminals 120 are used as an extended conductive component of the cable 132, and the design thereof may be designed according to the type or model of the cable 132, which is not limited by the utility model. For example, the cable 132 may be an 8p (position)8c (contact) twisted pair cable of an RJ-45 network cable, and the connection terminal 120 is correspondingly designed as an 8-pin metal reed. When the cable 132 is a 6p (position)4c (contact) cable of an RJ-11 telephone line, the connecting terminal 120 is correspondingly designed as a metal reed with 4 pins (pins).

The first cable retainer 134 and the second cable retainer 136 cooperate to assist in retaining the cable 132 in the electrical connector 100. The cable connector 138 is used to connect other electronic devices, so that the electronic devices can be connected to the electrical connector 100 with waterproof function for further use. The first cable holder 134, the second cable holder 136 and the cable connector 138 will be described in more detail with reference to the accompanying drawings.

Fig. 2C is a schematic view of the cover 140 of the electrical connector 100 according to an embodiment of the utility model. The back side of the sheath housing 140 has a through opening 142, and the through opening 142 is provided only as a through opening for the cable 132. Preferably, the size of the through hole 142 is designed to match the shape of the cable 132.

Fig. 2D is a partial component diagram of the electrical connector 100 according to an embodiment of the utility model. In fig. 2D, the annular housing 150 has a vertically protruding housing welding portion 1502 for being disposed on the second side of the second insulating member 112 to be firmly fixed thereon. In this embodiment, the annular housing 150 is provided with 4 rectangular protruding housing welding portions 1502. However, the number and shape of the housing welding portions 1502 can be adjusted according to actual requirements. The housing welding portion 1502 may be fixed to the second insulating member 112 by one or more of friction fixing, fitting, bonding, or welding.

Referring to fig. 3A and fig. 3B, fig. 3A is a schematic top view of the electrical connector 100 according to an embodiment of the utility model, and fig. 3B is a schematic cross-sectional view along a sectional line a-a' of the electrical connector 100 according to fig. 3A. In fig. 3B, the combined structure of the electrical connector 100 can be seen in greater detail. The second insulating member 112 is connected to the first insulating member 110 by bonding, fastening, welding, and the like, which is not limited in the utility model.

The front portion of the terminal 120 at the through hole 1102 of the first insulator 110 is a bent tongue-shaped structure, which facilitates the connection of the external cable 200 thereto and enhances the stability of the electrical connection therebetween by friction. However, the design of the bent tongue is merely exemplary, and the front section of the terminal 120 may have any desired shape to facilitate the interface with the external cable 200. In the utility model, the wire terminal 120 further has an extension 1202 at the middle section and a terminal soldering portion 1204 at the rear section. The extension portion 1202 of the wire terminal 120 is disposed on a first side of the second insulating member 112 close to the first insulating member 110, and the terminal soldering portion 1204 is disposed on a second side of the second insulating member 112 away from the first insulating member 110. That is, the second insulating member 112 has a through hole (see the second insulating member 112 in fig. 2A), so that the terminal welding portion 1204 of the wire terminal 120 can penetrate the second insulating member 112 to be disposed at the second side thereof. For example, the wire connecting terminal 120 may be bonded, buckled, or welded to fix the terminal welding portion 1204 to the second side of the second insulating member 112.

The cable 132 of the cable assembly 130 can be generally divided into a conductor 1322 and an insulating coating 1324, wherein the conductor 1322 at the front end of the cable 132 is a bare wire, and the conductor 1322 is coated by the insulating coating 1324. The conductor 1322 passes through the first and second cable holders 134 and 136, and is fixed to a second side of the second insulating member 112 away from the first insulating member 110, so that the conductor 1322 is further connected to the terminal welding portion 1204 of the wire connecting terminal 120. The first cable fixing member 134 and the second cable fixing member 136 are well known in the art, and will be described later. The cable 132 is used to connect the cable connector 138 so as to connect the electronic device sending/receiving signals through the cable connector 138.

Referring to fig. 2A and 3B, the annular housing 150 is a ring-shaped member disposed outside the first insulating member 110 and surrounding and covering the joint between the first insulating member 110 and the second insulating member 112. Specifically, in this embodiment, the first insulating member 110 is slightly larger than the second insulating member 112, and the annular housing 150 is tightly engaged with the first insulating member 110. In addition to the housing welding portion 1502 of the annular housing 150 being engaged and fixed with the second insulating member 112 in the manner described above, the annular housing 150 has a distance from the second insulating member 112 at the joint between the first insulating member 110 and the second insulating member 112 without direct contact. Therefore, the annular housing 150 forms a housing outer wall substantially above the second insulating member 112. With this arrangement, the outer shell wall of the annular shell 150 may further surround the annular groove 172 with the first insulating member 110 and the second insulating member 112. By the annular housing 150, the electrical connector 100 is protected from moisture or dust, and the electrical connector 100 is protected. When the cable 132 is, for example, an Unshielded Twisted Pair (Unshielded Twisted Pair) cable, the annular housing 150 may be made of a metal material, and thus, may also be used as an electromagnetic shield of the electrical connector 100, so as to achieve the effect of effectively isolating external electromagnetic interference.

In addition, in fig. 3B, it can be seen that the sheathing housing 140 sheathes the terminal welding portion 1204, the conductor 1322, the groove 172, and the second insulating member 112 near the second side of the cable 132. It should be noted that the cover 140 is tightly connected to the annular housing 150 without any gap therebetween, so as to achieve the best waterproof and dustproof effects. As mentioned above, the material of the covering housing 140 may be an insulating material such as plastic. The cover 140 may be integrally formed to better protect the exterior from moisture and dust.

In one embodiment, the first insulating member 110 further has an annular guiding groove 182, as shown in fig. 3C, fig. 3C is a schematic cross-sectional view of another embodiment of the electrical connector 100 of fig. 3A along a section line a-a'. Specifically, the annular guiding groove 182 is circumferentially disposed at the intersection of the annular housing 150 and the first insulating member 110. The annular guiding groove 182 can accommodate and dispose the waterproof rubber ring 180 to prevent dirt from entering through the joint between the annular housing 150 and the first insulating member 110, thereby further enhancing the waterproof sealing effect of the electrical connector 100. The waterproof rubber ring 180 may be made of any waterproof material such as silica gel or rubber. Preferably, the waterproof rubber ring 180 can completely fill the annular guiding groove 182, so that the waterproof rubber ring 180 has substantially the same shape as the annular guiding groove 182, thereby achieving the best waterproof sealing function. In addition, it should be understood that the waterproof rubber ring 180 may be formed separately and embedded in the electrical connector 100, or the waterproof rubber ring 180 is formed by filling a waterproof rubber material into the annular guiding groove 182 for curing.

Next, referring to fig. 3A and fig. 3D, fig. 3D is a schematic cross-sectional view of another embodiment of the electrical connector 100 of fig. 3A along a sectional line a-a'. In fig. 3D, the electrical connector 100 further has a waterproof glue 170. The waterproof rubber 170 is annular and disposed in the groove 172 to seal the groove 172, which further enhances the waterproof effect of the electrical connector 100. The waterproof rubber member 170 may be made of any waterproof material such as silica gel or rubber, and may be made of the same material as or different from the waterproof rubber ring 180. Preferably, the waterproof glue 170 completely fills the groove 172, so that the waterproof glue 170 is substantially the same as the groove 172, thereby achieving the best sealing and waterproof function. In addition, it should be understood that, like the waterproof rubber ring 180, the waterproof rubber 170 may be formed separately and embedded in the electrical connector 100, or the waterproof rubber 170 is formed by filling a waterproof rubber material into the groove 172 for curing.

In view of the above, it should be noted that in this embodiment, the covering housing 140 does not have to engage with the annular housing 150 to cover the groove 172. That is, the groove 172 is sealed by the waterproof sealant 170, so that the desired waterproof effect can be achieved even if the cover 140 is not tightly engaged with the annular housing 150. Specifically, in this embodiment, the covering housing 140 only needs to cover the terminal welding portion 1204, the conductor 1322, and the second insulating member 112 near the second side of the cable 132. However, it should be understood that in this embodiment, although the covering housing 140 does not have to be engaged with the annular housing 150, it can be engaged in practice, and the utility model is not limited thereto.

Referring to fig. 4A and 4B, fig. 4A is a schematic side view of the electrical connector 100 according to an embodiment of the utility model, and fig. 4B is a schematic cross-sectional view of the electrical connector 100 according to fig. 4A along a sectional line B-B'. In fig. 4B, it can be seen that the first cable retainer 134 has a protruding catch 1342, while the second cable retainer 136 has a protruding catch 1362. The locking portion 1342 can be locked with the locking portion 1362 to fix the cable 132 together. The engagement between the locking portion 1342 and the locking portion 1362 can be achieved by one or more of friction fit, adhesive material bonding and/or welding, which is not limited in the present invention.

In addition, the first cable fixing member 134 also has a protrusion 1344, and the second insulating member 112 has a groove 1122 corresponding to the protrusion 1344. The protrusion 1344 of the first cable retainer 134 is configured to engage the groove 1122 of the second insulator 112. The protrusion 1344 of the first cable fixing member 134 is engaged with the groove 1122 of the second insulating member 112 by one or more methods of friction engagement, adhesive bonding, welding and/or fastening, which is not limited in the present invention.

By the arrangement of the locking portion 1342 of the first cable fixing member 134, the locking portion 1362 of the second cable fixing member 136, the protrusion 1344 of the first cable fixing member 134, and the groove 1122 of the second insulating member 112, the cable 132 can be firmly connected to the second insulating member 112 without falling off. The number of the locking portions 1342, the locking portions 1362, the protruding portions 1344, and the grooves 1122 of the second insulating member 112 can be changed according to the actual requirement, and the disclosure is not intended to be limited thereto. It should be noted that the number of the locking portions 1342 of the first cable fixing member 134 is equal to the number of the locking portions 1362 of the second cable fixing member 136 for corresponding engagement, and the number of the protruding portions 1344 of the first cable fixing member 134 is equal to the number of the grooves 1122 of the second insulating member 112 for corresponding engagement.

Referring to fig. 2D, fig. 4A and fig. 4C, fig. 4C is a schematic cross-sectional view of the electrical connector 100 of fig. 4A along a section line C-C'. The housing soldering portion 1502 of the annular housing 150 and the terminal soldering portion 1204 of the wire terminal 120 are disposed on the same side of the second insulating member 112 but do not contact each other. In addition, when the annular housing 150 is made of metal, the housing welding portion 1502 can be connected to a portion of the conductor (e.g., ground) of the conductor 1322 as required, so as to achieve better anti-electromagnetic interference effect.

While the foregoing is directed to embodiments of the present invention, other and further embodiments of the utility model may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (22)

1. An electrical connector, comprising:

a first insulator having a through opening;

the second insulating part is connected with the first insulating part;

the connecting terminal is arranged at the through opening and provided with an extending part which is arranged at a first side of the second insulating part close to the first insulating part;

the annular shell is arranged around the first insulating part and forms a groove with the first insulating part and the second insulating part; and

a cable assembly having a cable electrically connected to the connection terminal.

2. The electrical connector of claim 1, wherein the terminal further comprises a terminal soldering portion disposed on a second side of the second insulating member opposite to the first side.

3. The electrical connector of claim 2, wherein the cable assembly has a covering housing for covering the terminal soldering portion, the end of the cable electrically connected to the connection terminal, the slot and the second side of the second insulating member.

4. The electrical connector of claim 1, further comprising a waterproof glue disposed in the slot.

5. The electrical connector of claim 4, wherein the terminal has a terminal soldering portion disposed on a second side of the second insulating member opposite to the first side.

6. The electrical connector of claim 5, wherein the cable assembly has a covering housing for covering the terminal soldering portion, the end of the cable electrically connected to the terminal, and the second side of the second insulating member.

7. The electrical connector of claim 1, wherein the cable assembly has a cable securing member for securing the cable to a second side of the second insulator opposite the first side.

8. The electrical connector of claim 1, wherein the annular housing is a metal housing.

9. The electrical connector of claim 1, wherein the annular housing has a housing soldering portion disposed on a second side of the second insulating member opposite to the first side.

10. The electrical connector of claim 1, wherein the cable assembly has a cable connector disposed at an opposite end from where the cable is electrically connected to the terminal.

11. The electrical connector of claim 1, wherein the first insulator has an annular channel formed therein, the electrical connector further comprising: and the waterproof rubber ring is arranged in the annular guide groove.

12. The electrical connector of claim 1, wherein the first insulator member is provided with one or more screw-locking holes.

13. The electrical connector of claim 1, which is an RJ45 interface electrical connector.

14. An electrical connector, comprising:

a first insulator having a through opening;

the second insulating part is connected with the first insulating part;

the connecting terminal is arranged at the through opening and provided with an extending part which is arranged at a first side of the second insulating part close to the first insulating part; and

and the annular shell is arranged around the first insulating part and forms a groove with the first insulating part and the second insulating part.

15. The electrical connector of claim 14, wherein the terminal further comprises a terminal soldering portion disposed on a second side of the second insulating member opposite to the first side.

16. The electrical connector of claim 14 further comprising a waterproof glue disposed in the slot.

17. The electrical connector of claim 16, wherein the terminal has a terminal soldering portion disposed on a second side of the second insulator opposite to the first side.

18. The electrical connector of claim 14, wherein the annular housing is a metal housing.

19. The electrical connector of claim 14, wherein the annular housing has a housing soldering portion disposed on a second side of the second insulating member opposite to the first side.

20. The electrical connector of claim 14, wherein the first insulator has an annular channel formed therein, the electrical connector further comprising: and the waterproof rubber ring is arranged in the annular guide groove.

21. The electrical connector of claim 14, wherein the first dielectric member is provided with one or more screw-locking holes.

22. The electrical connector of claim 14, being an RJ45 interface electrical connector.

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