CN105655796A - Electric connector - Google Patents

Abstract

An electrical connector includes: a main body, a housing and a package. The main body includes: a plurality of connection terminals; and an insulator configured to mount and support the connection terminals, the insulator being provided with a first filling groove surrounding the insulator. A housing is configured to receive the main body portion, the housing is provided with at least one through hole in fluid communication with the first filling groove. The sealing part is filled in the gap between the case and the insulator and the through hole by curing the gel injected into the first filling groove. Since the encapsulation part is solidified by the injected gel and filled in the gap between the shell and the insulator, the gap between the shell and the insulator can be sealed, the insulator is firmly fixed in the shell, and the electrical connection is improved. The waterproof and moisture-proof effect of the device.

Description

electrical connector

technical field

The present invention relates to an electrical connector, more specifically, to an electrical connector with good sealing.

Background technique

In a computer or a mobile communication device, it is usually necessary to use an electrical connector to implement, for example, switching, transmission, shunting, etc. of a data signal or a power signal. Generally, an electrical connector mainly includes a plurality of connection terminals for transmitting electrical signals, an insulator for mounting and supporting the connection terminals, and a housing for fixing the insulator. When assembling, put the insulator fixed with the connecting terminal into the housing made of metal material, and then rivet some features of the housing by hand or special clamps to fix the insulator.

However, under the requirements of the miniaturization design of connector products, the electrical connectors in the prior art cannot firmly fix the insulator in the housing, and cannot eliminate the gap between the insulator and the housing, and the sealing performance is poor, and water It may penetrate into the connector from the joint between its metal shell and the insulator, which may cause short circuit or damage to the circuit board, which cannot meet the requirements of waterproof design of mobile communication products.

Contents of the invention

In order to solve the above-mentioned and other technical problems in the prior art, the technical problem solved by the present invention is to provide an electrical connector that can seal the gap between the housing and the insulator without any gap, and improve the sealing of the electrical connector. performance and securely holds the insulator in the housing.

According to an embodiment of one aspect of the present invention, an electrical connector is provided, including: a main body, a housing and a package. The main body includes: a plurality of connection terminals; and an insulator configured to mount and support the connection terminals, the insulator being provided with a first filling groove surrounding the insulator. A housing is configured to receive the main body portion, the housing is provided with at least one through hole in fluid communication with the first filling groove. The sealing part is filled in the gap between the case and the insulator and the through hole by curing the gel injected into the first filling groove.

In the electrical connector of the exemplary embodiment of the present invention, an annular second filling groove is formed inside the housing, and the second filling groove is in fluid communication with the first filling groove so that the condensation Glue is filled into the second filling tank.

In the electrical connector of the exemplary embodiment of the present invention, the second filling groove communicates with or is separated from the through hole.

In the electrical connector according to the exemplary embodiment of the present invention, the encapsulating portion includes: an annular portion, a part of which is filled in the first filling groove; a plurality of columnar protrusions, extending from the annular portion extending outward into the through hole; and a flange extending outward from the annular portion into the second filling groove.

In the electrical connector of the exemplary embodiment of the present invention, at least one through hole is respectively provided on the upper wall, the lower wall and the two side walls of the housing.

In the electrical connector of an exemplary embodiment of the present invention, the insulator includes: a base having an outer contour substantially matching the inside of the housing, the first filling groove being formed around a periphery of the base; and A tongue-shaped portion extends from the base portion to the front end of the housing, and the connection terminals pass through the base portion and are respectively disposed on the upper surface and the lower surface of the tongue-shaped portion.

In the electrical connector of an exemplary embodiment of the present invention, the insulator includes:

a main insulator on which the tongue is formed; and

two auxiliary insulators mounted on the upper and lower surfaces of the main insulator, each auxiliary insulator having a substantially L-shape in side view, and comprising:

a first part bonded to an upper surface or a lower surface of the main insulator, a part of the connection terminal being mounted side by side on the first part; and

A second part integrally connected with the first part to form part of the base.

In the electrical connector of the exemplary embodiment of the present invention, the first part is provided with a plurality of grooves, and each groove has a curved portion for accommodating a curved portion of a corresponding connection terminal.

In the electrical connector of the exemplary embodiment of the present invention, the upper surface and the lower surface of the main insulator are respectively provided with a plurality of spacers, and each connection terminal extending from the first part of the auxiliary insulator is provided on a corresponding between adjacent compartments.

In the electrical connector according to an exemplary embodiment of the present invention, protrusions are respectively provided on both sides of the main insulator in the transverse direction, and the second part of each of the auxiliary insulators is combined between the two protrusions. .

In the electrical connector according to the exemplary embodiment of the present invention, at least one of the protruding portion and the outer side in the longitudinal direction of at least one of the two second parts is provided with at least one fluid communication with the first filling groove. filling hole.

In the electrical connector of the exemplary embodiment of the present invention, positioning portions are respectively provided on the protruding portion and the second portion to position the auxiliary insulator on the main insulator in the longitudinal direction.

In the electrical connector of the exemplary embodiment of the present invention, the main body part further includes a fixing part configured to fix the first part of the auxiliary insulator on the main insulator.

In the electrical connector of the exemplary embodiment of the present invention, the fixing part includes two upper fixing parts and lower fixing parts combined with each other.

In the electrical connector of the exemplary embodiment of the present invention, a plurality of inwardly recessed blocking portions are provided on the housing, and the blocking portions abut against the inner side of the base portion in the longitudinal direction.

In the electrical connector of the exemplary embodiment of the present invention, a plurality of protrusions or depressions are provided on the sidewall of the first filling groove.

According to the electrical connectors of the above-mentioned various embodiments of the present invention, the encapsulation part is solidified by the injected gel and filled in the gap between the housing and the insulator, which can seal the gap between the housing and the insulator, and is firm. The insulator is firmly fixed in the housing, which improves the waterproof and moisture-proof effect of the electrical connector.

Description of drawings

The present invention will be described in further detail with reference to accompanying drawing, wherein:

FIG. 1 is a schematic perspective view of an electrical connector according to an exemplary embodiment of the present invention;

Fig. 2 is another perspective view of the electrical connector shown in Fig. 2;

Fig. 3 is an exploded schematic view of the electrical connector shown in Fig. 1;

Fig. 4 is another exploded schematic diagram of the electrical connector shown in Fig. 1;

Fig. 5 is a further exploded schematic view of the electrical connector shown in Fig. 1;

Fig. 6 is an axial sectional view of the electrical connector shown in Fig. 1;

Figure 7 is a perspective view of the housing; and

FIG. 8 is a schematic perspective view of the packaging unit.

detailed description

While the present invention will be fully described with reference to the accompanying drawings containing preferred embodiments of the invention, it should be understood before proceeding that those skilled in the art may modify the invention described herein while obtaining the technical effects of the present invention. Therefore, it should be understood that the above description is a broad disclosure for those skilled in the art, and its content is not intended to limit the described exemplary embodiments of the present invention.

According to the general inventive concept of the present invention, an electrical connector is provided, which includes a main body, a housing and a package. The main body includes: a plurality of connection terminals, and an insulator configured to install and support the connection terminals, the insulator is provided with a first filling groove surrounding the insulator; the housing is configured to accommodate The main body part and the casing are provided with at least one through hole in fluid communication with the first filling groove. The sealing part is filled in the gap between the case and the insulator and the through hole by curing the gel injected into the first filling groove.

In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

Referring to FIGS. 1-5 , an electrical connector 100 according to an exemplary embodiment of the present invention includes a main body 10 , a housing 20 and a package 30 . The main body 10 includes: a plurality of connection terminals 11 for transmitting electrical signals, and an insulator 12 configured to install and support the connection terminals 11, for example, made of plastic material. The first filling groove 14; for example, a housing 20 made of a metal material such as stainless steel is configured to accommodate the main body portion 10 inserted in the longitudinal direction of the electrical connector, and the housing 20 is provided with the first filling groove. The slot 14 is in fluid communication with at least one through hole 21 . The sealing part 30 is filled in the gap between the case 20 and the insulator 12 and the through hole 21 by curing the gel injected into the first filling groove 14 . In one embodiment, the through hole 21 may be used as a filling hole for injecting gel, and the gel is filled into the first filling groove 14 .

In an exemplary embodiment of the electrical connector 100 according to the present invention, referring to FIGS. The fill tanks 14 are in fluid communication such that the gel filled into the first fill tank 14 flows under pressure and fills into the second fill tank 22 . In one embodiment, the second filling groove 22 communicates with the through hole 21 , so that the sequentially connected through hole 21 and the second filling groove 22 can surround the entire inner periphery of the housing 20 . In an alternative embodiment, the second fill slot 22 is spaced apart from the through hole 21, but is still in fluid communication with the first fill slot.

In an exemplary embodiment, in the case where the sequentially connected through hole 21 and the second filling groove 22 surround the entire inner periphery of the casing 20, as shown in FIG. 8 , the encapsulation formed by curing the gel includes: an annular portion 34, a part of which is filled in the first filling groove 14; a plurality of columnar protrusions 31 extending outward from the annular portion 34 into the through hole 21; and extending outward from the annular portion 34 to the second The flange 32 in the second filling groove 22. In this way, the outer periphery of the encapsulation portion 30 formed by solidification of the gel can be encapsulated in all the gaps between the housing 20 and the insulator 12, the main body 10 can be firmly fixed in the housing 20, and the electrical connector 100 is improved. Excellent waterproof and moisture-proof effect. In one embodiment, the second filling groove 22 may have a substantially V-shaped, arc-shaped or U-shaped cross section.

In one embodiment, a plurality of protrusions or depressions are provided on the sidewall of the first filling groove 14 , so that, as shown in FIG. 7 , the front and rear surfaces of the formed packaging portion 30 have corresponding concave-convex profiles. In this way, the sealing and bonding strength between the package portion 30 and the first filling groove 14 can be further improved. In an alternative embodiment, the inner sidewall of the first filling groove 14 is configured to be flat, so that the outer side of the encapsulation is formed into a flat profile.

As shown in FIG. 7 , at least one through hole 21 is respectively provided on the upper wall, the lower wall and the two side walls of the casing 20 . The number, shape and position of the through holes 21 can be selected as required. For example, three through holes 21 are respectively provided on the upper wall and the lower wall of the housing 20 , and one through hole 21 is respectively provided on two side walls. A through hole 21 on the upper wall communicates with the through hole 21 and is provided with an extension hole 23 . Correspondingly, as shown in FIG. 8 , an extension protrusion 33 integrally connected with the protrusion 31 is formed on the upper part of the package portion 30 .

As shown in FIGS. 1-5 , the insulator 12 includes: a base portion 122 and a tongue portion 121 . The base portion 122 has an outer contour substantially matching the interior of the housing 20 to position the main body portion 10 in the housing 20 . The first filling groove 14 is formed around the periphery of the base 12 . The tongue-shaped portion 121 extends from the base portion 122 toward the front end of the housing 20 , and the connection terminals 11 are disposed on the upper surface and the lower surface of the tongue-shaped portion 121 respectively through the base portion 122 . In this way, when the electrical connector of the embodiment of the present invention is combined with a mating connector (not shown), the connecting terminals 11 disposed in the housing 20 can be electrically connected with the connecting terminals of the mating connector.

In an exemplary embodiment, as shown in FIGS. 3-5 , the insulator 12 includes: one main insulator 123 and two auxiliary insulators 124 . The tongue 121 is formed on the main insulator. Two auxiliary insulators 124 are respectively installed on the upper and lower surfaces of the main insulator 123 , each auxiliary insulator 124 has a substantially L-shape in side view and includes first portions 1241 and 1242 . The first part 1241 is bonded to the upper surface or the lower surface of the main insulator 123, and a part of the connection terminal 11 is mounted on the first part 1241 side by side. The second part 1242 is integrally connected with the first part 1241 to form a part of the base 122 .

Further, the first part 1241 is provided with a plurality of grooves, and each groove has a curved portion for accommodating a curved portion of a corresponding connection terminal 11 . This bent structure can prevent the connection terminal 11 from moving in the longitudinal direction. In addition, a plurality of spacers 1231 are respectively provided on the upper surface and the lower surface of the main insulator 123, and a portion of each connection terminal 11 extending from the first portion 1241 of the auxiliary insulator 124 is disposed between adjacent spacers 1231, so that Avoid contact of adjacent connection terminals 11 .

Although the embodiment in which the insulator includes a main insulator and two auxiliary insulators that can be separated is described above, the present invention is not limited thereto. In an alternative embodiment, the insulator may be an integrally formed single part comprising a base and a tongue extending from the base, and the annular first filling groove is formed on the base. In this case, the connection terminal is mounted on the insulator by being inserted into a through hole formed on the base.

In one embodiment, protrusions 1233 are respectively provided on both sides of the rear end 1232 of the main insulator 123 in the lateral direction, and the second portion 1242 of each auxiliary insulator 124 is combined between the two protrusions 1233 . In this way, the second portions 1242 of the two auxiliary insulators 124 combine with the protrusions 1233 of the main insulator 123 to form the base 122 of the insulator 12 . Further, the protruding part 1233 and the second part 1242 are respectively provided with a positioning part 1234 to position the auxiliary insulator 124 on the main insulator 123 in the longitudinal direction, so that the auxiliary insulator 124 will not be opposite to the main insulator 123 in the longitudinal direction. move. For example, the positioning portion 1234 may be a step or other concave-convex structure that is formed on the protruding portion 1233 and the second portion 1242 to match each other.

According to the electrical connector 100 of the exemplary embodiment of the present invention, the main body 10 further includes a fixing part 13 configured to fix the first part 1241 of the auxiliary insulator 124 on the main insulator 124 . For example, the fixing part 13 includes two detachable upper fixing parts and lower fixing parts made of metal materials, and the upper fixing part and the lower fixing part are connected together by snap-fitting, so that the two auxiliary insulators 124 and The main insulators 123 are bonded together to form the insulator 12 .

In the process of assembling the main body part 10 of the embodiment of the present invention, the corresponding connection terminal 11 can be first installed in the groove of the first part 1241 of the auxiliary insulator 124, for example, some adhesive can be coated in the groove in advance, so that The connection terminal 11 is firmly installed in the groove; after that, the two auxiliary insulators 124 are respectively placed on the upper and lower surfaces of the main insulator 123, and the second part 1242 of the auxiliary insulator 124 is aligned with the protrusion 1233 of the main insulator 123 ; Finally, the fixing part 13 is combined on the two auxiliary insulators 124, so that the auxiliary insulator 124 is firmly installed on the main insulator 123. According to the main body part 10 of the embodiment of the present invention, the connecting terminal 11 is not fixed on the insulator 121 by being inserted through the base part 122 , but first installed on the auxiliary insulator 124 and then coupled to the main insulator 123 . Since both the connection terminal 11 and the auxiliary insulator 124 are provided with bent portions, the connection terminal 11 can be more reliably installed in the insulator, and the connection terminal 11 will not move relative to the insulator 12 in the longitudinal direction.

In the electrical connector 100 of the embodiment of the present invention, as shown in FIGS. Abutting against the inner side of the base portion 122 , the blocking portion 24 can position the main body 10 in the axial direction when the main body 10 is installed in the housing 20 .

In the description, the embodiment in which the gel is injected through the through hole 21 is described, but the present invention is not limited thereto. In an alternative embodiment, at least one of the protrusions 1233 of the main insulator 123 and at least one of the second parts 1242 of the two auxiliary insulators 124 in the longitudinal direction is provided with at least one fluid connection with the first filling groove 14. A communicating fill hole (not shown). In this way, gel can be injected into the first filling groove 14 through the filling hole at the rear side of the housing 20 .

It should be noted that, in order to facilitate the understanding of the electrical connector 100 of the embodiment of the present invention, FIGS. 3-5 and 8 show an independent package part 30 . However, those skilled in the art can understand that a part of the first filling groove 14 is respectively formed on the protruding part 1233 of the main insulator 123 and the second part 1242 of the two auxiliary insulators 124. Generally, the protruding part 1233 and the two second parts 1242 are integrally formed respectively, so that the encapsulation part 30 cannot be separated from the base part 122 of the insulator 12 without destroying the protruding part 1233 and the two second parts 1242 .

The following describes the operation process of packaging the electrical connector 100 as described in the above various embodiments. First, the main body 10 is inserted into the housing 20, and the main body 10 is positioned against the base 12 of the main body 10 by the blocking part 24; the gel in a fluid state is injected into a plurality of through holes 21 respectively, so that The gel fills the through hole 21, the first filling groove 14 in the base 122 of the insulator 10 and the space between the base 122 of the insulator and the inside of the housing 20, so that the gel flows into the second filling groove 22 inside the housing 20; The gel is cured to form the encapsulation portion 30 .

In one embodiment, the ends of all or a part of the connecting terminals 11 pass through the package and are further exposed from the rear side of the insulator 12 .

According to the electrical connectors of the above-mentioned various embodiments of the present invention, the encapsulation part is filled in the gap between the housing and the insulator through the solidification of the gel injected through the through hole on the housing, so that the housing and the insulator can be sealed. The gap between the insulators improves the waterproof and moisture-proof effects of the electrical connector; the insulator can be firmly fixed in the shell by using the protrusion and the flange of the packaging part. In the process of installing the main body in the shell, no positioning structures such as bolts and buckle structures are needed to position the main body, the manufacturing process is more stable and convenient, and the molds used are highly common; It meets the needs of product miniaturization and has strong design extension feasibility.

Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can improve them, and the structures described in various embodiments do not conflict with each other in terms of structure or principle Under the circumstances, free combination can be carried out, so as to realize more kinds of electrical connectors on the basis of solving the technical problem of the present invention.

After describing the preferred embodiments of the present invention in detail, those skilled in the art can clearly understand that various changes and changes can be made without departing from the scope and spirit of the appended claims, and the present invention is not limited by Implementation is limited to the exemplary embodiments set forth in the specification. It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Furthermore, any element references in the claims should not be construed as limiting the scope of the invention.

Claims (16)

1. An electrical connector, comprising: A main body, including: a plurality of connection terminals; and an insulator configured to mount and support the connecting terminal, the insulator being provided with a first filling groove surrounding the insulator; a housing configured to receive the main body portion, the housing having at least one through hole in fluid communication with the first filling tank; and An encapsulation part filled in the gap between the housing and the insulator and the through hole by curing the gel injected into the first filling groove. 2. The electrical connector according to claim 1, wherein an annular second filling groove is formed inside the housing, the second filling groove is in fluid communication with the first filling groove, so that the Gel is filled into the second filling tank. 3. The electrical connector according to claim 2, wherein the second filling groove communicates with or is separated from the through hole. 4. The electrical connector of claim 2, wherein the encapsulation comprises: an annular portion, a portion of which is filled in the first filling groove; a plurality of columnar protrusions extending outwardly from the annular portion into the through hole; and A flange extends outwardly from the annular portion into the second filling groove. 5. The electrical connector according to any one of claims 1-4, wherein at least one through hole is respectively provided on the upper wall, the lower wall and the two side walls of the housing. 6. The electrical connector according to any one of claims 1-4, wherein the insulator comprises: a base having an exterior profile substantially matching the interior of the housing, the first filling groove being formed around the periphery of the base; and A tongue-shaped portion extends from the base portion to the front end of the housing, and the connection terminals pass through the base portion and are respectively disposed on the upper surface and the lower surface of the tongue-shaped portion. 7. The electrical connector of claim 6, wherein the insulator comprises: a main insulator on which the tongue is formed; and two auxiliary insulators mounted on the upper and lower surfaces of the main insulator, each auxiliary insulator having a substantially L-shape in side view, and comprising: a first part bonded to an upper surface or a lower surface of the main insulator, a part of the connection terminal being mounted side by side on the first part; and A second part integrally connected with the first part to form part of the base. 8. The electrical connector as claimed in claim 7, wherein a plurality of grooves are formed on the first portion, each groove has a curved portion to accommodate a curved portion of a corresponding connection terminal. 9. The electrical connector as claimed in claim 7, wherein a plurality of spacers are respectively provided on the upper surface and the lower surface of the main insulator, and each connection terminal extending from the first part of the auxiliary insulator is arranged on between adjacent compartments. 10. The electrical connector as claimed in claim 7, wherein protruding portions are respectively provided on both sides of the main insulator in the lateral direction, and the second portion of each of the auxiliary insulators is combined between the two protruding portions between. 11. The electrical connector as claimed in claim 10 , wherein at least one of said protrusion and at least one of said second parts in the longitudinal direction is provided with at least one fluid contact with said first filling groove. Connected fill holes. 12. The electrical connector according to claim 10, wherein positioning portions are respectively provided on the protruding portion and the second portion to position the auxiliary insulator on the main insulator in the longitudinal direction. 13. The electrical connector of claim 7, wherein the main body portion further comprises a fixing portion configured to fix the first portion of the auxiliary insulator to the main insulator. 14. The electrical connector according to claim 13, wherein the fixing part comprises two upper fixing part and a lower fixing part combined with each other. 15. The electrical connector according to claim 6, wherein a plurality of inwardly recessed blocking portions are provided on the housing, and the blocking portions abut against the inner side of the base portion in the longitudinal direction. 16. The electrical connector according to any one of claims 1-4, wherein a plurality of protrusions or depressions are provided on the sidewall of the first filling groove.