CN217036139U

CN217036139U - Electrical connector with improved contact arrangement

Info

Publication number: CN217036139U
Application number: CN202220338070.8U
Authority: CN
Inventors: 李建; 彭太坤
Original assignee: Shenzhen Wanlian Xinneng Technology Co ltd
Current assignee: Shenzhen Wanlian Xinneng Technology Co ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-07-22
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses an electric connector, which comprises a main rubber core and a plurality of lead terminal groups, wherein the main rubber core is provided with a plurality of terminal accommodating cavities; the plurality of lead terminal groups are embedded in the terminal accommodating cavities in a one-to-one correspondence mode, each lead terminal group comprises a contact terminal, a molding protective adhesive and a lead, and the contact terminals are connected with the leads; the molding protective glue is formed by molding and wraps the connection part of the contact terminal and the lead, and the contact terminal is exposed on the surface of the main body glue core. According to the technical scheme, the whole combination of the contact terminal and the wire is subjected to molding, and the contact terminal is completely wrapped outside the contact section by injecting glue, so that the electric connector does not have the risks of poor insulation and short circuit even in the environment with high humidity and high temperature.

Description

Electrical connector with improved contact arrangement

Technical Field

The utility model relates to the technical field of electric appliances, in particular to an electric connector.

Background

Electrical connectors, which are used to bridge two conductors in a circuit so that current or signals can flow from one conductor to another, are widely used in various electrical lines to connect or disconnect current or signals.

Electrical connectors are commonly used, for example: after the hydrogen fuel cell stack connector adopts the contact terminals to rivet the wires, the hydrogen fuel cell stack connector is directly assembled into the main body rubber core, and the electric connector has no protection function, so that a customer can use the electric connector in the environment with higher temperature and humidity, and the product has risks of poor insulation, short circuit and the like.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an electric connector, which aims to solve the problem that the electric connector is poor in insulation and easy to short circuit.

To achieve the above object, the present invention provides an electrical connector, comprising:

the main body rubber core is provided with a plurality of terminal accommodating cavities;

the wire terminal groups are embedded in the terminal accommodating cavities in a one-to-one correspondence mode and comprise contact terminals, molding protective glue and wires, and the contact terminals are connected with the wires;

the molding protective glue is formed by molding and wraps the connection part of the contact terminal and the lead, and the contact terminal is exposed on the surface of the main body glue core.

In one embodiment, the contact terminal is formed with a protection section wrapped by the molding protection glue and a contact section not wrapped by the molding protection glue, and the contact section is exposed on the surface of the main body glue core.

In one embodiment, the contact terminal and the lead are riveted to form a riveting part, and the molding protective glue wraps the riveting part.

In one embodiment, the molding protective glue is arranged in the terminal accommodating cavity, and the terminal accommodating cavity is matched with the molding protective glue in shape.

In one embodiment, the opposite sides of the molding protective adhesive are concavely provided with limiting grooves, the inner wall of the terminal accommodating cavity is provided with limiting blocks corresponding to the limiting grooves in a protruding mode near the opening, and the limiting blocks extend into the limiting grooves.

In an embodiment, the main body rubber core is provided with a limiting hole, the limiting hole is communicated with the terminal accommodating cavity, the molding protective rubber is convexly provided with a convex block corresponding to the limiting hole, and the convex block extends out of the limiting hole.

In one embodiment, the main body rubber core is provided with a nut, and the nut is fixed on the main body rubber core in a molding mode.

In an embodiment, the electrical connector further comprises a rear cover, the rear cover is clamped with the main body rubber core, and the rear cover is located on one side of the main body rubber core, which is far away from the contact terminal.

In an embodiment, the electric connector further comprises a protective cover, a plurality of protruding portions are arranged on one side, away from the rear cover, of the main body rubber core, the protruding portions are communicated with the terminal accommodating cavities, a plurality of terminal avoiding grooves are formed in the protective cover, and the protruding portions are sleeved with the protective cover.

In one embodiment, a plurality of bosses are arranged on the periphery side of the inner wall of the protective cover.

According to the technical scheme, the whole combination of the contact terminal and the wire is subjected to molding, the contact terminal is completely wrapped by injecting glue outside the contact section, and the rubber shell partition columns of the main body rubber core are used for partitioning, so that the condition that the existing electric connector is connected with the contact terminal and the wire without protection is improved, the risk of poor insulation and short circuit can be avoided even if the electric connector is in a high-humidity and high-temperature environment, and the service life of the electric connector is prolonged.

Drawings

In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of a wire terminal set according to an embodiment of the electrical connector of the present invention;

FIG. 2 is a schematic diagram of an electrical connector according to an embodiment of the present invention;

FIG. 3 is a schematic view of an electrical connector according to another embodiment of the present invention;

FIG. 4 is a schematic view of an electrical connector according to an embodiment of the present invention with the protective cover removed;

FIG. 5 is a schematic view of the electrical connector of the present invention with the protective cover and the rear cover removed;

FIG. 6 is a schematic view of an electrical connector according to another embodiment of the present invention;

FIG. 7 is a schematic view of a main rubber core structure of an electrical connector according to an embodiment of the present invention;

fig. 8 is a schematic view of a protective cover according to an embodiment of the electrical connector of the present invention.

The reference numbers indicate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Rubber core of main body	210	Contact terminal
200	Conductor terminal group	220	Conducting wire
				300	Back cover	230	Molding protective adhesive
400	Protective cover	211	Contact section
				110	Terminal accommodating cavity	212	Limiting groove
120	Projecting part	213	Bump
				130	Nut	410	Terminal avoiding groove
111	Limiting block	420	Boss
				112	Limiting hole

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "a and/or B" as an example, including either the a aspect, or the B aspect, or both the a and B aspects. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Electrical connectors, which are used to bridge two conductors in a circuit so that current or signals can flow from one conductor to another, are widely used in various electrical circuits to connect or disconnect current or signals.

Electrical connectors are commonly used, for example: after the contact terminal 210 is riveted with the lead 220, the hydrogen fuel cell stack connector is directly assembled into the main body rubber core 100, and the electric connector has no protection function, so that when a customer is used in an environment with high temperature and humidity, the product has risks of poor insulation, short circuit and the like.

Referring to fig. 1, the present invention provides an electrical connector, which may be a hydrogen fuel cell stack connector, and during production, after a contact terminal 210 is connected to a lead 220, a molding operation is performed on the contact terminal, a molding protection adhesive 230 is formed on a peripheral edge of the contact terminal 210 and a connection portion of the lead 220, and the molding protection adhesive 230 wraps the connection portion of the contact terminal 210 and the lead 220. Because the contact terminals 210 are completely coated with the glue except the functional areas, even if the electric connector is in a high-humidity and high-temperature environment, the risks of poor insulation and short circuit can be avoided, and the service life of the electric connector is prolonged.

Referring to fig. 1 to 7, the electrical connector of the present invention includes a main body rubber core 100 and a plurality of wire terminal sets 200, wherein the main body rubber core 100 has a plurality of terminal accommodating cavities 110; the plurality of lead terminal sets 200 are embedded in the terminal accommodating cavity 110 in a one-to-one correspondence manner, the lead terminal sets 200 include contact terminals 210, molding protective glue 230 and leads 220, and the contact terminals 210 are connected with the leads 220; the molding protective adhesive 230 is formed by molding and wraps the connection between the contact terminal 210 and the conductive wire 220, and the contact terminal 210 is exposed on the surface of the main body adhesive core 100.

Specifically, the number of the terminal accommodating cavities 110 is the same as that of the lead terminal groups 200, and may be 4, 5, 6, or the like. The terminal accommodating cavities 110 are arranged at intervals in the main body rubber core 100, and have equal intervals, and can be used for positioning and fixing the molded wire terminal group 200, the wire terminal group 200 penetrates through the terminal accommodating cavities 110, meanwhile, parts of the contact terminals 210 are exposed on the surface of the main body rubber core 100, and the wires 220 also extend out of the main body rubber core 100. The contact terminal 210 is exposed on the outer surface of the main body rubber core 100 for connecting an external device, thereby realizing a connection function.

Each wire terminal group 200 comprises a contact terminal 210, a plurality of molding protective adhesives 230 and a wire 220, and after the contact terminal 210 is connected with the wire 220, the whole body formed by connecting the contact terminal 210 with the wire 220 is molded by molding, so that the molding protective adhesive 230 is formed at the connection part of the contact terminal 210 and the wire 220. Meanwhile, the non-functional area of the contact terminal 210 is protected by the molding protective glue 230, because the molding protective glue 230 is a molded plastic material, and the main body rubber core 100 is also made of a plastic material, the plastic material has better insulation and thermal stability, and has a good isolation function. So set up, not only improved the stability that contact terminal 210 and wire 220 are connected, still had waterproof, insulating, thermal stability function concurrently for contact terminal 210 still possesses good function under the environment of high temperature and high humidity, and then guarantees that the phenomenon of insulating badness and short circuit can not appear in the electric connector, improves electric connector's life.

Referring to fig. 1, in the present embodiment, a protection section wrapped by the molding protection adhesive 230 and a contact section 211 not wrapped by the molding protection adhesive 230 are formed on the contact terminal 210, and the contact section 211 is exposed on the surface of the main body rubber core 100. One end of the protection section is connected with the wire 220, the other end of the protection section is connected with the contact section 211, the molding protection glue 230 completely wraps the protection section and wraps the connection part of the protection section of the part of the wire 220 and the contact terminal 210, and therefore the contact terminal 210 obtains a good sealing effect. With this arrangement, only the functional portion of the contact terminal 210, i.e., the contact section 211, is exposed, so that the unnecessary portion of the contact terminal 210 and the connection portion with the conductive wire 220 are effectively protected, and poor insulation or short circuit is prevented.

The wire 220 and the contact terminal 210 can be connected in a variety of ways, in this embodiment, the contact terminal 210 and the wire 220 are riveted to form a riveting portion, and the molding protective glue 230 wraps the riveting portion. It can be understood that, the contact terminal 210 and the wire 220 are riveted, and then the formed whole is subjected to individual piece molding, so that the riveted part is wrapped, the risk of releasing the riveted part from the outside is reduced, a better protection effect is generated, and the connection strength and the insulation quality of the electric connector are improved.

Referring to fig. 6 to 7, in this embodiment, the molding protective glue 230 is disposed in the terminal accommodating cavity 110, and the terminal accommodating cavity 110 is adapted to the molding protective glue 230. It can be understood that the shapes of the terminal receiving cavity 110 and the molding protective adhesive 230 can be regular or irregular patterns such as square, rectangle, etc., and only a good installation and positioning effect needs to be provided. The wire terminal set 200 is assembled into the main body rubber core 100, passes through the terminal accommodating cavity 110 through the molding protective rubber 230, and the contact terminal 210 and the wire 220 wrapped by the molding protective rubber 230 respectively extend out from the front and rear openings of the terminal accommodating cavity 110, the contact section 211 of the contact terminal 210 is exposed on the surface of the main body rubber core 100, and the wire 220 extends out of the rear side of the main body rubber core 100.

Referring to fig. 1 and 7, in order to ensure the installation stability of the wire terminal set 200 installed on the main body rubber core 100, and prevent the wire terminal set 200 from falling off, which affects the functions of preventing poor insulation and short circuit of the wire terminal set 200 passing through the molding, in this embodiment, the opposite sides of the molding protective rubber 230 are concavely provided with limiting grooves 212, the inner wall of the terminal accommodating cavity 110 near the opening is convexly provided with limiting blocks 111 corresponding to the limiting grooves 212, and the limiting blocks 111 extend into the limiting grooves 212. It can be understood that, the stopper 111 is convexly provided on the main body rubber core 100, that is, the stopper 111 is formed in the terminal accommodating cavity 110, the stopper 111 may be disposed in the up-down direction of the terminal accommodating cavity 110, the stopper 111 may be in a long strip shape, and the shape of the stopper groove 212 is consistent with that of the stopper 111, so as to clamp the lead terminal group 200. When the lead terminal set 200 is installed, the lead terminal set 200 is inserted into the terminal accommodating cavity 110 along the installation length direction of the terminal accommodating cavity 110 until the lead terminal set 200 abuts against the limiting block 111 close to the opening. The two limiting blocks 111 located above and below the end portion of the terminal accommodating cavity 110 abut against the lead terminal group 200 by extending into the limiting grooves 212 of the molding protective glue 230, so that the molding protective glue 230 does not extend out of the opening of the terminal accommodating cavity 110, and the contact section 211 connected to the contact terminal 210 of the molding protective glue 230 can extend out of the opening of the terminal accommodating cavity 110, thereby realizing accurate positioning and improving the installation efficiency.

Referring to fig. 1 and 7, in order to further improve the installation stability of the wire terminal set 200, in this embodiment, the main body rubber core 100 is provided with a limiting hole 112, the limiting hole 112 is communicated with the terminal accommodating cavity 110, the molding protective rubber 230 is convexly provided with a bump 213 corresponding to the limiting hole 112, and the bump 213 extends out of the limiting hole 112. It can be understood that, in combination with the above-mentioned limiting block 111, the lead terminal group 200 is limited forward, and the wall surface of the terminal accommodating cavity 110 is limited by providing a supporting force to the lead terminal group 200 up, down, left and right. The addition of the bump 213 can clamp the molding protective adhesive 230, i.e. the wire terminal group 200, not only further enhance the forward limiting effect, but also provide the backward supporting limitation, so that the wire terminal group 200 can be stably mounted on the main body rubber core 100. And the installation mode of the clamping connection of the lead terminal group 200 improves the assembly efficiency, reduces the production cost and is convenient to assemble and disassemble.

Referring to fig. 3 to 5, in the present embodiment, the main body rubber core 100 is provided with a nut 130, and the nut 130 is fixed to the main body rubber core 100 by molding. The number of the nuts 130 is two, and the nuts 130 are used for screw connection assembly of screws, so that the effect of fixed installation is achieved. In order to improve the assembly efficiency, in this embodiment, the electrical connector further includes a rear cover 300, the rear cover 300 is connected to the main body rubber core 100 in a clamping manner, and the rear cover 300 is located on one side of the main body rubber core 100 away from the contact terminal 210. After the wire terminal set 200 and the main rubber core 100 are assembled, the rear cover 300 is directly aligned to the rear of the main rubber core 100 and is fastened, and the wire 220 extends downward.

Referring to fig. 3 to 5 or 8, in order to protect the contact section 211 of the contact terminal 210 from being damaged when not in use, in this embodiment, the electrical connector further includes a protective cover 400, a protrusion 120 is disposed on one side of the main body rubber core 100 away from the rear cover 300, the protrusion 120 is communicated with the terminal accommodating cavities 110, a plurality of terminal avoiding grooves 410 are disposed in the protective cover 400, and the protective cover 400 is sleeved on the protrusion 120. It can be understood that, the number of the terminal avoiding groove 410 and the number of the contact terminal 210 should be the same, when assembling, the protective cover 400 is used for covering the protrusion 120 of the main body rubber core 100, and can be used for protecting the contact terminal 210 between the protrusion 120 of the main body rubber core 100 and the protective cover 400, the contact section 211 of the contact terminal 210 extends into the terminal avoiding groove 410, and the individual rubber shell barrier separation is performed, so as to reduce the interference of the external environment to the contact terminal 210, and reduce the risk of poor insulation and short circuit of the contact terminal 210.

Referring to fig. 8, in order to ensure the connection stability between the protection cover 400 and the main rubber core 100, in this embodiment, a plurality of bosses 420 are arranged on the circumferential side of the inner wall of the protection cover 400. It can be understood that, when assembling, boss 420 can evenly distributed in the week side of protection casing 400 inner wall, and boss 420 supports on the periphery of the bulge 120 of main part rubber core 100, and the setting of boss 420 can increase the frictional force between the bulge 120 of protection casing 400 inner wall and main part rubber core 100, improves the installation stability of protection casing 400, and this kind of mounting means not only conveniently takes out or covers bulge 120, guarantees the implementation stability to the protective effect of contact terminal 210 moreover.

Referring to fig. 1 to 8, the assembly process of the present invention is: after the wires 220 are riveted on the contact terminals 210, a molding operation is carried out on the contact terminals to form a molding protective glue 230 to wrap the contact terminals 210 and the wires 220, then the molded wire terminal group 200 is arranged in the main body glue core 100 in which the nuts 130 are molded according to the direction, the rear cover 300 is arranged in the main body glue core 100 in which the wire terminal group 200 is assembled according to the direction, finally the protective cover 400 is arranged in the main body glue core 100 in which the rear cover 300 is assembled, and finally the completely assembled electric connector is formed.

When the existing electric connector is in the environment with high temperature and high humidity, the contact terminal 210 is very easily interfered by the environment, the normal operation of the internal parts of the electric connector is affected, and the electric connector is not beneficial to users. Because the contact terminal 210 is completely molded and coated except for the functional area, and the rubber shell partition columns of the main rubber core 100 are separated, poor insulation and short circuit risks can not occur even if a user uses the electric connector in an environment with high temperature and humidity. Furthermore, the electric connector can be installed in an assembling mode, so that the electric connector is convenient to assemble and disassemble, the use, the disassembly and the maintenance of a user are facilitated, and the production and assembly efficiency can be improved.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention that are made by using the contents of the specification and the drawings or directly/indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. An electrical connector, comprising

the wire terminal groups are embedded in the terminal accommodating cavities in a one-to-one correspondence manner, each wire terminal group comprises a contact terminal, a molding protective adhesive and a wire, and the contact terminals are connected with the wires;

2. The electrical connector as claimed in claim 1, wherein the contact terminal is formed with a protection section wrapped by the molding protection paste and a contact section not wrapped by the molding protection paste, and the contact section is exposed on the surface of the body paste core.

3. The electrical connector of claim 2, wherein the contact terminals are riveted to the wires to form a rivet, and the molding compound encapsulates the rivet.

4. The electrical connector of claim 3, wherein the molding compound is disposed in the terminal receiving cavity, and the terminal receiving cavity is adapted to the molding compound.

5. The electrical connector as claimed in claim 4, wherein the opposite sides of the molding protective adhesive are concavely provided with limiting grooves, the inner wall of the terminal receiving cavity near the opening is convexly provided with limiting blocks corresponding to the limiting grooves, and the limiting blocks extend into the limiting grooves.

6. The electrical connector as claimed in claim 5, wherein the main body rubber core is provided with a limiting hole, the limiting hole is communicated with the terminal accommodating cavity, the molding protective rubber is convexly provided with a projection corresponding to the limiting hole, and the projection extends out of the limiting hole.

7. The electrical connector of claim 3, wherein the body gel core is provided with a nut that is secured to the body gel core by molding.

8. The electrical connector of claim 7, further comprising a rear cover, wherein the rear cover is clamped to the main body rubber core, and the rear cover is located on a side of the main body rubber core away from the contact terminal.

9. The electrical connector of claim 8, further comprising a protective cover, wherein a protrusion is disposed on a side of the main rubber core away from the rear cover, the protrusion is connected to the terminal receiving cavities, a plurality of terminal avoiding grooves are disposed in the protective cover, and the protective cover is disposed on the protrusion.

10. The electrical connector of claim 9, wherein a plurality of bosses are arranged on the inner peripheral side of the shield.