CN216354879U

CN216354879U - Electrical connector

Info

Publication number: CN216354879U
Application number: CN202122099196.2U
Authority: CN
Inventors: 严安; 仇金国; 秦海伟
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-04-19
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses an electric connector, which comprises a terminal module and a metal shell sleeved outside the terminal module, wherein the terminal module comprises an insulating body, and a plurality of conductive terminals and middle shielding sheets which are fixedly held on the insulating body, and the conductive terminals are transversely arranged into a first terminal set and a second terminal set. The conductive terminal comprises high-frequency signal terminals positioned on two opposite sides of the middle shielding sheet and is used for realizing the transmission of high-frequency signals. The middle shielding sheet is provided with a main body part fixed in the insulating body and a plurality of protruding parts protruding forwards from the main body part, the plurality of protruding parts are arranged at intervals in the transverse direction, the thickness of each protruding part is smaller than that of the main body part, and the front end parts of the high-frequency signal terminals of the first terminal group and the second terminal group are located on two sides of each protruding part. The front end of the middle shielding sheet is arranged in a shape like a Chinese character 'shan' and is subjected to thinning treatment, so that the thinning area is reduced while the safety margin is increased, and the processing technology difficulty is reduced.

Description

Electrical connector

Technical Field

The present invention relates to an electrical connector, and more particularly, to an electrical connector for improving signal transmission rate.

Background

With the rapid development of the technology level, electronic devices such as mobile phones and tablet computers have become common life and work tools for people; meanwhile, a Type C USB (Universal Serial Bus) connector in an electronic device has also been widely used. The existing Type C USB connector generally implements transmission of high-frequency signals by providing a plurality of high-frequency signal terminal pairs, however, mutual crosstalk is easily generated between the plurality of high-frequency signal terminal pairs during signal transmission, so that the transmission rate of signals is affected. In order to solve the above problem, in the conventional electrical connector, a shielding member is additionally arranged between two rows of upper and lower high-frequency signal terminal pairs, and the shielding member is formed by stamping a metal sheet and is located between the two high-frequency signal terminal pairs to separate the two high-frequency signal terminal pairs, so that mutual crosstalk between the two adjacent high-frequency signal terminal pairs is prevented. However, in the Type C USB connector related to high frequency signals, the shielding member is generally thinned below the corresponding position of the high frequency signal terminal in order to avoid affecting the high frequency signals and the consideration of safety margin, which increases the difficulty of the processing of the shielding member.

It is therefore desirable to provide a new electrical connector that overcomes the above-mentioned drawbacks.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric connector with an intermediate shielding sheet, which reduces the processing difficulty of the intermediate shielding sheet while not influencing high-frequency signals and safety margin.

In order to achieve the purpose, the utility model adopts the following technical scheme: an electric connector comprises a terminal module and a metal shell sleeved outside the terminal module, wherein the terminal module comprises an insulating body extending along the longitudinal direction, and a plurality of conductive terminals and middle shielding sheets which are fixedly arranged on the insulating body, the conductive terminals are arranged along the transverse direction perpendicular to the longitudinal direction to form a first terminal set and a second terminal set, and the middle shielding sheets are positioned between the first terminal set and the second terminal set. The conductive terminal comprises high-frequency signal terminals which are respectively positioned in the first terminal group and the second terminal group and are positioned on two opposite sides of the middle shielding sheet, the middle shielding sheet is provided with a main body part fixedly held in the insulating body and a plurality of protruding parts protruding forwards from the main body part, the plurality of protruding parts are arranged at intervals in the transverse direction, the thickness of the protruding parts is smaller than that of the main body part, and the front end parts of the high-frequency signal terminals of the first terminal group and the second terminal group are positioned on two sides of the protruding parts.

In a preferred embodiment, the protrusion is formed by thinning the front end of the main body.

In a preferred embodiment, the conductive terminal has a holding portion held on the insulating housing, a contact portion extending forward from the holding portion, and a soldering pin extending backward from the holding portion to the insulating housing, and a front end surface of the contact portion of the high-frequency signal terminal does not exceed a front end surface of the protruding portion.

In a preferred embodiment, the intermediate shield plate is provided with a soldering portion extending rearward from the main body portion, and the soldering portion is located in the same plane as the soldering legs of the conductive terminals in the first terminal group.

In a preferred embodiment, the terminal module includes a base portion and a mating tongue portion extending forward from the base portion, the base portion is received in the metal shell, and the mating tongue portion projects forward from the base portion out of the metal shell.

In a preferred embodiment, the contact portions of the first terminal group and the second terminal group are exposed to opposite side surfaces of the mating tongue portion, respectively.

In a preferred embodiment, the terminal module further comprises a waterproof glue located at the rear end of the base, the waterproof glue being located within the coverage of the metal shell.

In a preferred embodiment, the terminal module further includes an extending portion extending rearward from the base portion, the soldering pin of the conductive terminal and the soldering portion of the middle shielding plate extend out of the extending portion, and the electrical connector includes a rear housing covering the extending portion.

In a preferred embodiment, the insulating body includes a first insulator and a second insulator, the first insulator is injection-molded on the middle shielding plate and the first terminal set to form a first terminal module, and the second insulator is injection-molded on the second terminal set to form a second terminal module.

In a preferred embodiment, the metal shell is provided with a shell covering the outer side of the terminal module and a protruding portion protruding outward from the outer surface of the shell, the electrical connector includes a waterproof ring fixed on the metal shell, and the waterproof ring is formed by hot melting on the outer edge of the front end of the shell and the front end surface of the protruding portion.

Compared with the prior art, the utility model has the following beneficial effects: the conductive terminal comprises high-frequency signal terminals which are respectively positioned in the first terminal group and the second terminal group and are positioned on two opposite sides of the middle shielding sheet, and the high-frequency signal terminals are used for realizing the transmission of high-frequency signals. The middle shielding sheet is provided with a main body part fixedly held in the insulating body and a plurality of protruding parts protruding forwards from the main body part, and the front end parts of the high-frequency signal terminals of the first terminal group and the second terminal group are positioned at two sides of the protruding parts so as to prevent crosstalk between the high-frequency signal terminals of the first terminal group and the second terminal group, thereby ensuring that high-frequency signals are not influenced. The plurality of protruding parts are arranged at intervals in the transverse direction, and the thickness of the protruding parts is smaller than that of the main body part, namely, the front end of the middle shielding sheet is arranged in a Chinese character 'shan' shape, and local thinning treatment of the front end is carried out, so that safety allowance is increased; meanwhile, the middle shielding piece is arranged at the position, corresponding to the high-frequency signal terminal, of the middle shielding piece in a shape like the Chinese character 'shan', so that the thinning area is reduced, and the difficulty of the processing technology for thinning the protruding part is reduced.

Drawings

Fig. 1 is a perspective view of the electrical connector of the present invention.

Fig. 2 is an exploded view of the electrical connector shown in fig. 1.

Fig. 3 is a cross-sectional view of a metal shell and a waterproof ring in the electrical connector shown in fig. 1.

Fig. 4 is a perspective view of the first terminal set and the middle shield plate in the electrical connector shown in fig. 1.

Fig. 5 is a perspective view of the intermediate shield blades of the electrical connector shown in fig. 1.

Fig. 6 is a cross-sectional view of a first terminal module in the electrical connector shown in fig. 2.

Detailed Description

Referring to fig. 1 to 6, an electrical connector 100 is disclosed for being mounted on a circuit board (not shown) and an electronic product (not shown) having a socket. In this embodiment, the electrical connector 100 is a sinking plate Type C USB connector and includes a terminal module 10 extending along a longitudinal direction, a metal shell 20 sleeved outside the terminal module 10, and a waterproof ring 30 fixed on the metal shell 20, wherein the waterproof ring 30 is injection molded on an outer periphery of the metal shell 20.

Referring to fig. 2, the terminal module 10 is provided with a base 11 extending in a transverse direction, a mating tongue 12 extending forward from the base 11, and an extension 13 extending backward from the base 11, wherein the mating tongue 12 is used for mating with a mating cavity of a mating connector (not shown). The base 11 is received in the metal shell 20, and the docking tongue 12 projects forward of the metal shell 20 from the base 11. The extension portion 13 is disposed above the circuit board, and the electrical connector 100 includes a rear housing 40 covering the extension portion 13, wherein the rear housing 40 is connected to the circuit board to electromagnetically shield the extension portion 13. The terminal module 10 further comprises a waterproof adhesive 14 located at the rear end of the base 11, and the waterproof adhesive 14 is located in the coverage range of the metal shell 20, so that the waterproof performance of the rear end of the electrical connector 100 is ensured.

As shown in fig. 4 to 6, the terminal module 10 includes an insulative housing 50 extending along a longitudinal direction, and a plurality of conductive terminals 60 and a middle shielding plate 70 fixed to the insulative housing 50. The conductive terminals 60 are arranged in a transverse direction perpendicular to the longitudinal direction into a first terminal set 601 and a second terminal set 602, and the middle shielding plate 70 is located between the first terminal set 601 and the second terminal set 602. The conductive terminal 60 further includes high-frequency signal terminals 603 respectively located in the first terminal set 601 and the second terminal set 602 and located at two opposite sides of the middle shielding plate 70 for transmitting high-frequency signals.

The conductive terminal 60 has a holding portion 61 fixed to the insulating housing 50, a contact portion 62 extending forward from the holding portion 61, and a soldering pin 63 extending backward from the holding portion 61 to the insulating housing 50. The contact portions 61 of the first terminal set 601 and the contact portions 61 of the second terminal set 602 are exposed to opposite side surfaces of the mating tongue 12, respectively. The soldering portions 63 of the first terminal set 601 and the soldering portions 63 of the second terminal set 602 extend backward from the extension portion 13 and are arranged in two rows.

The middle shielding plate 70 is provided with a main body 71 fixed in the insulating body 50, a plurality of protrusions 72 protruding forward from the main body 71, and a welding portion 73 extending backward from the main body 71, the main body 71 and the protrusions 72 are located between the high-frequency signal terminals 603 of the first terminal set 601 and the second terminal set 602, that is, the front ends of the high-frequency signal terminals 603 of the first terminal set 601 and the second terminal set 602 are located at two sides of the protrusions 72, so as to prevent crosstalk between the high-frequency signal terminals 603 of the first terminal set 601 and the second terminal set 602, thereby ensuring that high-frequency signals are not affected. In the present embodiment, the front end surface of the contact portion 62 of the high-frequency signal terminal 603 does not extend beyond the front end surface of the protruding portion 72.

The protruding portions 72 are arranged at intervals in the transverse direction, and the protruding portions 72 are formed by thinning the front end of the main body portion 71, that is, the thickness of the protruding portions 72 is smaller than that of the main body portion 71. Thus, the front end of the middle shield sheet 70 of the present embodiment is provided in a "mountain" shape, and a local thinning process of the front end is performed, thereby increasing a safety margin; meanwhile, the middle shielding sheet 70 is arranged at the position corresponding to the position avoiding the high-frequency signal terminal 603 for blanking in a shape like a Chinese character 'shan', so that the thinning area is reduced, and the difficulty of the processing technology for thinning the protruding part 72 is reduced.

The insulating body 50 holds the middle shield 70, the first terminal set 601 and the second terminal set 602 together. Specifically, the insulation body 50 includes a first insulator 51 and a second insulator 52, the first insulator 51 is injection-molded on the middle shielding plate 70 and the first terminal set 601 to form the first terminal module 101, and the second insulator 52 is injection-molded on the second terminal set 602 to form the second terminal module 102. The solder legs 63 of the conductive terminals 60 in the first terminal module 101 and the solder portions 73 of the middle shielding plate 70 extend out of the extension portion 13, and the solder portions 73 and the solder legs 63 of the conductive terminals 60 in the first terminal set 601 are located in the same plane.

As shown in fig. 3, the metal shell 20 includes a housing 21 covering the outside of the terminal module 10, a protruding portion 22 protruding outward from the outer surface of the housing 21, and a glue accommodating groove 23 recessed backward from the front end surface of the protruding portion 22 along the longitudinal direction. The base 11 of the terminal module 10 is accommodated in the housing 21 of the metal shell 20, and the mating tongue 12 projects forward out of the housing 21. The waterproof glue 14 of the terminal module 10 is located in the coverage of the shell 21 of the metal shell 20.

The protruding portion 22 is integrally formed on the housing 21, and the glue receiving groove 23 is formed by cutting the protruding portion 22. The glue containing groove 23 is provided with a forward opening, and the size of the glue containing groove 23 is gradually reduced from front to back in the longitudinal direction, that is, the section of the glue containing groove 23 along the longitudinal direction is V-shaped, the inner wall of one side of the glue containing groove 23 is the outer surface of the shell 21, and the inner wall of the other side of the glue containing groove extends from the front end surface of the bulge 22 in an inclined manner until the inner wall intersects with the outer surface of the shell 21.

The waterproof ring 30 is made of plastic material and is formed by hot melting on the outer edge of the front end of the housing 21 and the front end surface of the protruding portion 22, and meanwhile, the waterproof ring 30 is filled in the glue containing groove 23 and partially covers the periphery of the front end of the protruding portion 22. The waterproof ring 30 is injection molded on the front end face of the protruding portion 22 and partially accommodated in the glue accommodating groove 23, so that a good waterproof effect is achieved. The V-shaped glue containing groove 23 of the metal shell 20 increases the glue containing amount of the waterproof ring 30, and also takes into account the strength of the glue containing groove 23, so that the waterproof ring 30 is more firmly and firmly contacted with the shell 21, and the risk of lowering the waterproof performance due to collapse of the waterproof ring 30 at the protruding part 22 is avoided.

Further, metal casing 20 is equipped with the ear 24 that is located the horizontal both sides of casing 21, ear 24 is located the vertical rear of bellying 22 and is equipped with fixed orifices 25, fixed orifices 25 is fixed in electric connector 100 on the circuit board through the screw.

When the electrical connector 100 is installed in an electronic product, the front end surface of the waterproof ring 30 is in contact with the inner side surface of the socket of the electronic product, and the upper end surface of the waterproof ring 30 is in contact with the inner surface of the socket of the electronic product, that is, the waterproof ring 30 can be in contact with the inner side surface and the inner surface of the housing of the electronic product at the same time, so that the waterproof grade is improved, and the manufacturing cost of the metal housing 20 is further reduced.

In the present invention, the conductive terminal 60 includes high frequency signal terminals 603 respectively located in the first terminal set 601 and the second terminal set 602 and located at two opposite sides of the middle shielding plate 70 for transmitting high frequency signals. The middle shielding plate 70 is provided with a main body 71 fixed in the insulating body 50 and a plurality of protrusions 72 protruding forward from the main body 71, and the front ends of the high-frequency signal terminals 603 of the first terminal group 1601 and the second terminal group 602 are located at two sides of the protrusions 72 to prevent crosstalk between the high-frequency signal terminals 603 of the first terminal group 601 and the second terminal group 602, thereby ensuring that high-frequency signals are not affected. The plurality of protruding parts 72 are arranged at intervals in the transverse direction, and the thickness of the protruding parts 72 is smaller than that of the main body part 71, namely, the front end of the middle shielding sheet 70 is arranged in a shape like a Chinese character 'shan' and is locally thinned, so that the safety margin is increased; meanwhile, the middle shielding sheet 70 is arranged at the position corresponding to the position avoiding the high-frequency signal terminal 603 for blanking in a shape like a Chinese character 'shan', so that the thinning area is reduced, and the difficulty of the processing technology for thinning the protruding part 72 is reduced.

In summary, the above is only a preferred embodiment of the present invention, and should not be limited to the scope of the present invention, and all the equivalent changes and modifications made by the claims and the specification of the present invention should still fall within the scope of the present invention.

Claims

1. An electric connector comprises a terminal module and a metal shell sleeved outside the terminal module, wherein the terminal module comprises an insulating body extending along the longitudinal direction, and a plurality of conductive terminals and middle shielding sheets which are fixedly arranged on the insulating body, the conductive terminals are arranged along the transverse direction perpendicular to the longitudinal direction to form a first terminal set and a second terminal set, and the middle shielding sheets are positioned between the first terminal set and the second terminal set; the method is characterized in that: the conductive terminal comprises high-frequency signal terminals which are respectively positioned in the first terminal group and the second terminal group and are positioned on two opposite sides of the middle shielding sheet, the middle shielding sheet is provided with a main body part fixedly held in the insulating body and a plurality of protruding parts protruding forwards from the main body part, the plurality of protruding parts are arranged at intervals in the transverse direction, the thickness of the protruding parts is smaller than that of the main body part, and the front end parts of the high-frequency signal terminals of the first terminal group and the second terminal group are positioned on two sides of the protruding parts.

2. The electrical connector of claim 1, wherein: the protruding part is formed by thinning the front end of the main body part.

3. The electrical connector of claim 1, wherein: the conductive terminal is provided with a holding part which is held on the insulating body, a contact part which extends forwards from the holding part and a welding pin which extends backwards from the holding part to the insulating body, and the front end face of the contact part of the high-frequency signal terminal does not exceed the front end of the protruding part.

4. The electrical connector of claim 3, wherein: the middle shielding plate is provided with a welding part extending backwards from the main body part, and the welding part and the welding pins of the conductive terminals in the first terminal group are positioned in the same plane.

5. The electrical connector of claim 3, wherein: the terminal module comprises a base and a butt-joint tongue part extending forwards from the base, wherein the base is accommodated in the metal shell, and the butt-joint tongue part protrudes forwards from the base to the metal shell.

6. The electrical connector of claim 5, wherein: the contact portions of the first terminal set and the second terminal set are exposed to opposite side surfaces of the mating tongue portion, respectively.

7. The electrical connector of claim 5, wherein: the terminal module further comprises waterproof glue located at the rear end of the base, and the waterproof glue is located in the coverage range of the metal shell.

8. The electrical connector of claim 5, wherein: the terminal module further comprises an extension part extending backwards from the base part, the welding feet of the conductive terminals extend out of the extension part, and the electric connector comprises a rear shell covering the extension part.

9. The electrical connector of claim 1, wherein: the insulating body comprises a first insulator and a second insulator, the first insulator is injected on the middle shielding sheet and the first terminal group to form a first terminal module, and the second insulator is injected on the second terminal group to form a second terminal module.

10. The electrical connector of claim 1, wherein: the metal casing is provided with a casing covering the outer side of the terminal module and a protruding part protruding outwards from the outer surface of the casing, the electric connector comprises a waterproof ring fixed on the metal casing, and the waterproof ring is formed on the outer edge of the front end of the casing and the front end of the protruding part in a hot melting mode.