CN213845634U

CN213845634U - Electrical connector

Info

Publication number: CN213845634U
Application number: CN202022718829.9U
Authority: CN
Inventors: 王帅; 仇金国; 秦海伟
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2020-11-20
Filing date: 2020-11-20
Publication date: 2021-07-30
Anticipated expiration: 2030-11-20

Abstract

The application discloses electric connector, it includes: insulator, conductive terminal and shell, the shell includes first casing, first casing is for drawing the shaping casing, first casing includes first barrel portion and second barrel portion, the internal surface of first barrel is located the coplanar with the internal face of second barrel, the wall thickness of first barrel is less than the wall thickness of second barrel, the shell still includes the second casing, the second casing includes third barrel portion and turn-ups portion, turn-ups portion extends from the third barrel portion along the direction of keeping away from the inner chamber and forms loudspeaker form, the third barrel portion is fixed in first barrel portion to can adjust corresponding proportion, satisfy multiple proportion requirement.

Description

Electrical connector

Technical Field

The present application relates to the field of connectors, and more particularly, to an electrical connector.

Background

The existing connector waterproof structure is characterized in that the head of a frame opening is generally subjected to a point UV glue process, but UV glue has fluidity, when the L/H ratio is too large, the UV glue can collapse, the length direction dimension L cannot meet the requirement, and the UV compression amount is too small after the connector waterproof structure is assembled, so that the air tightness of a product is affected.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application will solve lies in: provided is an electrical connector having excellent airtightness.

In order to solve the technical problem, the technical scheme of the application is as follows:

an electrical connector, comprising: the insulating body comprises a base part and a tongue plate part extending forwards from the base part, the base part and the shell are fixedly arranged, the shell is provided with an inner cavity used for inserting a butting connector, at least part of the tongue plate part is accommodated in the inner cavity, the tongue plate part is provided with a first surface and a second surface, and the first surface and the second surface are respectively positioned on two opposite sides of the tongue plate part in the thickness direction;

the conductive terminals are fixed on the insulating body and comprise a first row of conductive terminals and a second row of conductive terminals, the first row of conductive terminals are provided with first contact parts, first fixing parts and first welding parts, the second row of conductive terminals are provided with second contact parts, second fixing parts and second welding parts, the first contact parts are exposed on the first surface, the second contact parts are exposed on the second surface, the first fixing parts and the second fixing parts are embedded and fixed in the insulating body, the first welding parts and the second welding parts are exposed outside the insulating body, and the first welding parts and the second welding parts are used for connecting external equipment;

the shell comprises a first shell, the inner cavity is positioned in the first shell, the first shell is a drawing forming shell, the first shell comprises a first barrel part and a second barrel part, the second barrel part is positioned behind the first barrel part in the front-rear direction, the shell comprises an inner wall surface facing the inner cavity and an outer wall surface which is far away from the inner cavity relative to the inner wall surface, and the wall thickness of the shell is formed between the inner wall surface and the outer wall surface;

the inner surface of the first cylinder and the inner wall surface of the second cylinder are located on the same plane, the wall thickness of the first cylinder is smaller than that of the second cylinder, the shell further comprises a second shell, the second shell comprises a third cylinder portion and a flanging portion, the flanging portion extends from the third cylinder portion in the direction away from the inner cavity to form a horn shape, and the third cylinder portion is fixed on the first cylinder portion.

Compared with the prior art, the wall thickness of the first barrel of this application is less than the wall thickness of second barrel, third barrel are fixed in first barrel to can adjust the L/H proportion, satisfy multiple proportion requirement, reduce the risk of collapsing to the gas tightness is better.

Further, the shell includes a third shell, the third shell is a draw-out molded shell, the third shell includes a front end portion and a rear end portion, the front end portion contacts with the front surface of the base portion, the rear end portion is sleeved on the outer peripheral surface of the base portion, the inner surface of the rear end portion contacts with the outer peripheral surface of the base portion, and the outer surface of the rear end portion contacts with the inner surface of the first shell.

Further, the electric connector further comprises a waterproof rubber ring, the waterproof rubber ring comprises a first surface and a second surface, the first surface of the waterproof rubber ring is in contact with the outer surface of the barrel part, and the second surface of the waterproof rubber ring is in contact with the rear surface of the flanging part.

Further, the shell includes fourth casing and fifth casing, fourth casing and fifth casing are located the rear of first shell, fourth casing and fifth casing are stamping forming shell, the mutual lock setting of fourth casing and fifth casing.

Furthermore, the electric connector comprises a middle shielding sheet, the middle shielding sheet is at least partially positioned between the first row of conductive terminals and the second row of conductive terminals in the thickness direction of the tongue plate portion, the middle shielding sheet is provided with a first barb and a second barb which are respectively exposed at the edges of two sides of the tongue plate portion in the width direction, and the first barb and the second barb are used for being buckled with the butting connector.

Further, the second shell is a drawing forming shell.

Further, the tongue plate portion has a front end portion and a rear end portion, the front end portion of the tongue plate portion extends forwards from the inner cavity to beyond the shell, the rear end portion is accommodated in the inner cavity, and the first barb and the second barb are located in front of the shell.

Further, the first welding parts and the second welding parts are arranged in two rows, the first welding parts are parallel to the first contact parts, and the second welding parts are parallel to the second contact parts.

Furthermore, the insulating body and the conductive terminals are integrally formed through an insert molding process.

Furthermore, the first row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals, and the second row of conductive terminals includes signal terminals, ground terminals, power terminals and detection terminals.

Drawings

Fig. 1 is a perspective view of an electrical connector according to an embodiment of the present application.

Fig. 2 is an exploded perspective view of an electrical connector according to an embodiment of the present application.

Fig. 3 is a schematic cross-sectional view of an electrical connector according to an embodiment of the present application.

Fig. 4 is a schematic top view of an electrical connector according to an embodiment of the present application.

Fig. 5 is a perspective view of a first housing according to an embodiment of the present application.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be understood that the terms "first," "second," and the like as used in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Similarly, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one; "plurality" means two or more than two. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items.

The piping connection assembly according to the exemplary embodiment of the present application will be described in detail below with reference to the accompanying drawings. The features of the following examples and embodiments can be supplemented or combined with each other without conflict.

As shown in fig. 1 to 5, an electrical connector 100 includes: the waterproof structure comprises an insulating body 1, a conductive terminal 2, a shell 3 and a waterproof rubber ring 4. The insulating body 1 is formed by injection molding of plastic particles, the conductive terminals are formed by stamping metal material belts, and the shell 3 is made of metal materials.

The conductive terminal 2 is fixed to the insulative housing 1, and the insulative housing 1 includes a base 11 and a tongue portion 12 extending forward from the base 11. The base part 11 is fixed to the housing 3, the housing 3 is provided with an inner cavity 30 for inserting a mating connector (plug connector), and the tongue part 12 is at least partially accommodated in the inner cavity 30. In the illustrated embodiment, the tongue portion 12 extends forwardly beyond the housing 3, thereby forming a cantilever, facilitating a compact design of the electrical connector 100. Of course, in other embodiments, the tongue portion 12 may be located entirely within the housing 3, thereby complying with the USB Type C specification.

The tongue plate portion 12 has a first surface 121 and a second surface 122, and the first surface 12 and the second surface 122 are located on both upper and lower sides in the thickness direction of the tongue plate portion 12. The conductive terminal 2 includes a first row of conductive terminals 21 and a second row of conductive terminals 22, the first row of conductive terminals 21 has a first contact portion 211, a first fixing portion 212 and a first welding portion 213, and the second row of conductive terminals 22 has a second contact portion 221, a second fixing portion 222 and a second welding portion 223. The first contact portion 211 is exposed on the first surface 121, the second contact portion 221 is exposed on the second surface 122, and the first fixing portion 212 and the second fixing portion 222 are embedded and fixed in the insulating body 1. The first soldering portion 213 and the second soldering portion 223 are exposed outside the insulating housing 1, and the first soldering portion 213 and the second soldering portion 223 are used for connecting external devices. The first contact portion 211 and the second contact portion 221 may contact conductive terminals of the docking connector.

The outer shell 3 comprises a first shell 31, the inner cavity 30 is located in the first shell 31, and the first shell 31 is a draw-molded shell. The first housing 31 includes a first barrel portion 311 and a second barrel portion 312, and the second barrel portion 312 is located rearward of the first barrel portion 311 in the front-rear direction. Housing 3 includes an interior wall surface 313 facing toward interior cavity 30 and an exterior wall surface 314 facing away from interior cavity 30 relative to interior wall surface 313, the wall thickness of housing 3 being formed between interior wall surface 313 and exterior wall surface 314. The inner surface 313 of the first cylinder 311 and the inner wall surface 313 of the second cylinder 312 are located on the same plane, and the wall thickness of the first cylinder 311 is smaller than that of the second cylinder 312.

The housing 3 further includes a second casing 32, the second casing 32 includes a third barrel 321 and a flange 322, the flange 322 extends from the third barrel 321 along a direction away from the cavity 30 to form a trumpet shape, and the third barrel 321 is fixed to the first barrel 311. When the L/H ratio of the existing connector waterproof structure is too large, the UV glue of the waterproof rubber ring 4 can collapse, so that the length direction dimension L cannot meet the requirement, and the compression amount of the waterproof rubber ring 4 is too small after the connector waterproof structure is assembled, so that the air tightness of a product is influenced. As shown in fig. 3, the wall thickness of the first cylinder 311 is smaller than that of the second cylinder 312, so that the first cylinder is in a step structure, and the sum H of the thicknesses of the third cylinder 321 and the first cylinder 311 is greater than the thickness H1 of the second cylinder 312, so as to adjust the L/H ratio, for example, the thickness of the third cylinder 321 can be changed to flexibly adjust, so that the glue collapse and the frame edge glue overflow are improved, and the airtightness is better. In addition, the main advantages of the structure also include: (1) the UV glue collapse defect of the waterproof rubber ring 4 is improved, the dispensing yield is improved, and the production cost is reduced; (2) the applicability is wide, the step size can be adjusted, and various L/H proportion requirements are met. The upper surface of the third cylinder 321 is located above the upper surface of the second cylinder 312.

The housing 3 further comprises a third casing 33 which is a draw forming casing. The third housing 33 includes a front end 331 and a rear end 332, the front end 331 contacts with the front surface of the base 11, the rear end 332 covers the outer peripheral surface of the base 11, the inner surface of the rear end 332 contacts with the outer peripheral surface of the base 11, and the outer surface of the rear end 332 contacts with the inner surface of the first housing 31. The third shell 33 of the drawing structure is coated on the base 11, so that the strength of the base 11 is enhanced, and the bonding of the internal waterproof glue is facilitated.

The waterproof rubber ring 4 includes a first surface 41 and a second surface 42, the first surface 41 of the waterproof rubber ring 4 is in contact with the outer surface 323 of the barrel portion 321, and the second surface 42 of the waterproof rubber ring 4 is in contact with the rear surface 324 of the burring portion 322. The electrical connector 100 further comprises an inner waterproof ring 6, the inner waterproof ring 6 is sealed at the rear section of the base 11, the inner waterproof ring 6 is used for preventing water entering from the inner cavity 30 from flowing into the interior of the electronic device, and the electronic device can be a smart phone, a tablet computer, a notebook computer, a desktop computer and the like.

The housing 3 includes a fourth shell 34 and a fifth shell 35, the fourth shell 34 and the fifth shell 35 are located behind the first housing 31, and the fourth shell 34 and the fifth shell 35 are both punch-formed housings. The fourth housing 34 and the fifth housing 35 are fastened to each other. The fourth housing 34 is provided with a through hole 341 penetrating in the up-down direction, through which the coplanarity of the first welding portion 213 and the second welding portion 223 can be observed, thereby facilitating inspection. The first shell 34 is further provided with an end pin 342, the base 11 is provided with a matching hole 111 penetrating along the vertical direction, and the end pin 342 is inserted into the matching hole 111 to be matched and fixed with the base 11, so that the fixed connection between the shell 3 and the insulating body 1 is enhanced. Both sides of the fifth housing 35 are provided with a body 351 and two wings 352 connected to opposite ends of the body 351, and each wing 352 is provided with a screw hole 353, and the screw holes 353 are used for screw-mounting and fixing the electrical connector 100 to an external circuit board.

The rear section of the insulative housing 1 is located between the fourth housing 34 and the fifth housing 35, and the fourth housing 34 has a rear wall 343 located behind the insulative housing 1, thereby enhancing the shielding performance of the electrical connector 100.

The electrical connector 100 comprises an intermediate shield plate 5, the intermediate shield plate 5 being located between the first row of conductive terminals 21 and the second conductive terminals 22 in the thickness direction of the tongue portion 12. The intermediate shield piece 5 is provided with a first barb 51 exposed on one side edge of the tongue plate portion 12, the intermediate shield piece 5 is provided with a second barb 52 exposed on the other side edge of the tongue plate portion 12, and the first barb 51 and the second barb 52 are used for being snapped with the mating connector. The first barb 51 and the second barb 52 are exposed at both side edges in the width direction of the tongue plate portion 12.

The tongue portion 12 has a front end portion 123 and a rear end portion 124, the front end portion 123 of the tongue portion 12 is located at the front end of the cavity 30, the rear end portion 124 of the tongue portion 12 is housed in the cavity 30, and the first barb 514 and the second barb 524 are located at the front of the housing 3.

The first soldering part 213 and the second soldering part 223 are arranged in two rows, which is advantageous for reducing the width of the electrical connector and for miniaturization design. The first soldering portion 213 is parallel to the first contact portion 211, and the second soldering portion 223 is parallel to the second contact portion 221.

The insulating body 1, the first row of conductive terminals 21 and the second row of conductive terminals 22 are integrally formed by an insert molding (insert molding) process. In alternative embodiments, it may be realized by two-time injection molding and three-time injection molding.

The first row of conductive terminals 21 includes signal terminals, ground terminals, power terminals and detection terminals, and the second row of conductive terminals 22 also includes signal terminals, ground terminals, power terminals and detection terminals. The electrical connector 100 may be a USB Type C connector.

Compared with the prior art, the wall thickness of the first cylinder 311 is smaller than that of the second cylinder 312 so as to form a step structure, and the sum H of the thicknesses of the third cylinder 321 and the first cylinder 311 is greater than the thickness H1 of the second cylinder 312, so that the L/H ratio is adjusted, the glue collapse and the bad glue overflow of the frame opening are improved, and the structure has the main advantages that: (1) the UV glue collapse defect of the waterproof rubber ring 4 is improved, so that the dispensing yield is improved, and the production cost is reduced; (2) the applicability is wide, the step size can be adjusted, and various L/H proportion requirements are met.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception and within the scope of the present invention.

Claims

1. An electrical connector, comprising: the insulating body comprises a base part and a tongue plate part extending forwards from the base part, the base part and the shell are fixedly arranged, the shell is provided with an inner cavity used for inserting a butting connector, at least part of the tongue plate part is accommodated in the inner cavity, the tongue plate part is provided with a first surface and a second surface, and the first surface and the second surface are respectively positioned on two opposite sides of the tongue plate part in the thickness direction;

2. The electrical connector of claim 1, wherein: the shell comprises a third shell body, the third shell body is a drawing forming shell body, the third shell body comprises a front end portion and a rear end portion, the front end portion is in contact with the front surface of the base portion, the rear end portion is sleeved on the outer peripheral surface of the base portion, the inner surface of the rear end portion is in contact with the outer peripheral surface of the base portion, and the outer surface of the rear end portion is in contact with the inner surface of the first shell body.

3. The electrical connector of claim 2, wherein: the electric connector further comprises a waterproof rubber ring, the waterproof rubber ring comprises a first surface and a second surface, the first surface of the waterproof rubber ring is in contact with the outer surface of the barrel part, and the second surface of the waterproof rubber ring is in contact with the rear surface of the flanging part.

4. The electrical connector of claim 3, wherein: the shell includes fourth casing and fifth casing, fourth casing and fifth casing are located the rear of first shell, fourth casing and fifth casing are stamping forming shell, the mutual lock setting of fourth casing and fifth casing.

5. The electrical connector of claim 4, wherein: the electric connector comprises a middle shielding sheet, the middle shielding sheet is at least partially positioned between the first row of conductive terminals and the second conductive terminals in the thickness direction of the tongue plate portion, the middle shielding sheet is provided with a first barb and a second barb, the first barb and the second barb are respectively exposed at the edges of two sides of the tongue plate portion in the width direction, and the first barb and the second barb are used for being buckled with the butting connector.

6. The electrical connector of claim 5, wherein: the second shell is a drawing forming shell.

7. The electrical connector of claim 6, wherein: the tongue plate portion is provided with a front end portion and a rear end portion, the front end portion of the tongue plate portion extends forwards from the inner cavity to exceed the shell, the rear end portion is contained in the inner cavity, and the first barb and the second barb are located in front of the shell.

8. The electrical connector of claim 7, wherein: the first welding parts and the second welding parts are arranged in two rows, the first welding parts are parallel to the first contact parts, and the second welding parts are parallel to the second contact parts.

9. The electrical connector of claim 8, wherein: the insulating body and the conductive terminals are integrally formed through an insert molding process.

10. The electrical connector of any one of claims 1 to 9, wherein: the first row of conductive terminals comprise signal terminals, grounding terminals, power terminals and detection terminals, and the second row of conductive terminals comprise signal terminals, grounding terminals, power terminals and detection terminals.