CN217983784U

CN217983784U - Card connector

Info

Publication number: CN217983784U
Application number: CN202221512723.6U
Authority: CN
Inventors: 马营阁; 高凤珍
Original assignee: Dongguan Biying Industrial Co ltd
Current assignee: Dongguan Biying Industrial Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-12-06
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a card connector, which comprises a shell, an insulating body and a terminal group; the terminal group is embedded in the insulating body and comprises a first terminal group and a second terminal group, the first terminal group comprises a plurality of first terminals, the second terminal group comprises a plurality of second terminals, the first terminals comprise first fixing parts, first contact parts and first welding parts, and the second terminals comprise second fixing parts, second contact parts and second welding parts; each second terminal is uniformly distributed between two adjacent first fixing parts, the first fixing parts and the second fixing parts are completely embedded in the insulating body, the first fixing parts and the second fixing parts are coplanar with the upper surface of the insulating body, and the first fixing parts of the first terminals positioned at the leftmost side and the rightmost side integrally extend outwards to form auxiliary fixing parts; therefore, the thickness and the length of the insulating body are reduced, the thinning design of a product is realized, and the positioning of the terminal is facilitated.

Description

Card connector

Technical Field

The utility model belongs to the technical field of the card connector and specifically relates to indicate a card connector.

Background

The smart phone brings convenience to the current life, as is well known, an electronic card connector capable of accommodating the SIM card needs to be installed on the smart phone when an electronic product is communicated, the conventional electronic card connector generally comprises an insulating body, a conductive terminal and a metal shell, the insulating body and the metal shell form an insertion slot together, the conductive terminal comprises a fixing part, a contact arm and a welding pin, the contact arm extends into the insertion slot and is assembled or insert-molded on the insulating body, the contact arm is used for electrically contacting with an electronic card, and the welding pin is in a cantilever shape extending out of the insulating body. The card connector in the prior art generally comprises two sets of terminals, wherein the two sets of terminals are generally arranged on the insulating body in tandem, even the arrangement heights of the two sets of terminals in the insulating body are different, so that the overall length and the thickness of the insulating body are longer.

Therefore, a new technology needs to be developed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a card connector, which reduces the thickness and length of the insulating housing, realizes the thin design of the product, and is more favorable for positioning the terminal.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a card connector comprises a shell, an insulating body and a terminal group; the shell is clamped on the insulating body, and an inserting cavity is formed between the shell and the insulating body; the terminal group is embedded in the insulating body and comprises a first terminal group and a second terminal group, the first terminal group comprises a plurality of first terminals, the second terminal group comprises a plurality of second terminals, the first terminals comprise first fixing parts, first contact parts and first welding parts, the first contact parts extend integrally from one ends of the first fixing parts, the first welding parts extend integrally from the other ends of the first fixing parts to the outside of the insulating body, the second terminals comprise second fixing parts, second contact parts and second welding parts, the second contact parts extend integrally from one ends of the second fixing parts, the second welding parts extend integrally from the other ends of the second fixing parts to the outside of the insulating body;

the first terminals are sequentially arranged at left and right intervals, each second terminal is uniformly distributed between two adjacent first fixing parts, the first welding parts and the second welding parts are sequentially arranged alternately and side by side, the first fixing parts and the second fixing parts are completely embedded in the insulating body, the first fixing parts and the second fixing parts are coplanar with the upper surface of the insulating body, the first fixing parts of the first terminals on the leftmost side and the rightmost side extend outwards integrally to form auxiliary fixing parts, and the auxiliary fixing parts extend out of the insulating body; the insulation body is sequentially provided with a first through groove and a second through groove which penetrate through the splicing cavity at intervals from front to back; the first contact part and the second contact part are respectively positioned in the first through groove and the second through groove and extend into the plugging cavity.

As a preferred scheme, the auxiliary fixing portion extends to the outside of the bottom of the insulating body, and an arc-shaped groove is concavely arranged on one side of the auxiliary fixing portion, which is back to the insulating body.

Preferably, the first fixing portions of the first terminals located at the leftmost side and the rightmost side are integrally extended upward to form auxiliary positioning portions, the auxiliary positioning portions are located at one side of the first welding portion, and the auxiliary positioning portions are provided with auxiliary positioning holes penetrating through the left and right sides of the auxiliary positioning portions.

As a preferable scheme, the rear end face of the insulating body is provided with a positioning groove recessed from back to front.

As a preferred scheme, the insulating body includes a body portion extending along a front-back direction and a left side extending portion and a right side extending portion integrally connected to the left and right sides of the body portion, the left side extending portion, the body portion and the right side extending portion form a first insertion groove, the housing includes a main body portion extending along the front-back direction and a left side wall and a right side wall integrally connected to the left and right sides of the main body portion, the left side wall, the main body portion and the right side wall form a second insertion groove, the first insertion groove and the second insertion groove form the insertion cavity, the left side extending portion and the right side extending portion are provided with the first clamping groove and the second clamping groove, and the left side wall and the right side wall are provided with the first clamping portion and the second clamping portion.

Preferably, the left extending portion extends integrally from a left upper surface of the body portion in the front-rear direction, and the right extending portion extends integrally from a right upper surface of the body portion in the front-rear direction.

Preferably, the left side wall extends integrally in the front-rear direction from a left lower surface of the body, and the right side wall extends integrally in the front-rear direction from a right lower surface of the body.

Preferably, the first fixing part and the second fixing part are completely embedded in the body part, and are coplanar with the upper surface of the body part; the first through groove and the second through groove are sequentially arranged on the body part at intervals from front to back and penetrate through the first inserting groove.

As a preferable scheme, the front end of the left side extending portion and the front end of the right side extending portion are both provided with a limiting portion protruding upwards, and the front end face of the outer shell is limited by the rear end face of the limiting portion.

As a preferable scheme, the left side wall and the right side wall of the housing are both provided with positioning convex strips at the sides back to the second inserting groove, and the positioning convex strips extend along the front-back direction.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, according to the technical scheme, the first terminals are arranged in a left-right spacing mode in sequence, the second terminals are arranged between the first fixing parts of two adjacent first terminals, and the first fixing parts and the second fixing parts are completely embedded in the insulating body, so that the second terminals can not occupy the thickness and the length of the insulating body, and the first fixing parts and the second fixing parts are coplanar with the upper surface of the insulating body, thereby reducing the thickness and the length of the insulating body, realizing the thinning design of a product, and being more beneficial to heat dissipation; secondly, the auxiliary fixing parts extend outwards integrally from the first fixing parts of the first terminals positioned at the leftmost side and the rightmost side, so that the positioning between the terminals and an external structure is facilitated; and the first welding part and the second welding part are sequentially arranged alternately and side by side, so that the welding parts of the first terminal and the second terminal are arranged neatly, and subsequent welding is facilitated.

To illustrate the structural features and technical means of the present invention more clearly and for a specific purpose and function, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a perspective view of the overall structure of the embodiment of the present invention;

fig. 2 is a perspective view of another angle overall structure of the embodiment of the present invention;

fig. 3 is a perspective view of another angle overall structure of the embodiment of the present invention;

fig. 4 is an exploded view of an embodiment of the present invention;

fig. 5 is another exploded view of an embodiment of the present invention;

fig. 6 is yet another exploded view of an embodiment of the present invention.

Description of the figures:

10. housing 11, first joint portion

12. Second engaging portion 13 and main body portion

14. Left side wall 15, right side wall

20. The insulating body 21 and the first through groove

22. Second through groove 23 and first clamping groove

24. Second engaging groove 25 and body

26. Left and right extending

parts

27 and 27

201. Positioning groove 202 and limiting part

30. First terminal 31, first fixing part

32. First contact portion 33, first welding portion

34. Auxiliary fixing portion 341, arc groove

35. Auxiliary positioning part 351 and auxiliary positioning hole

40. Second terminal 41 and second fixing part

42. Second contact portion 43, second welding portion

101. Plug cavity 102, abdication space

103. And positioning the convex strip.

Detailed Description

Fig. 1 to 6 show specific structures of embodiments of the present invention.

A card connector includes a housing 10, an insulating body 20 and a terminal set; the shell 10 is clamped on the insulating body 20, and an inserting cavity 101 is formed between the shell and the insulating body 20; the terminal group is inlaid in the insulating body 20, the terminal group includes a first terminal group and a second terminal group, the first terminal group includes a plurality of first terminals 30, the second terminal group includes a plurality of second terminals 40, the first terminal 30 includes a first fixing portion 31, a first contact portion 32 integrally extending from one end of the first fixing portion 31 and a first welding portion 33 integrally extending from the other end of the first fixing portion 31 to the outside of the insulating body 20, the second terminal 40 includes a second fixing portion 41, a second contact portion 42 integrally extending from one end of the second fixing portion 41 and a second welding portion 43 integrally extending from the other end of the second fixing portion 41 to the outside of the insulating body 20.

The plurality of first terminals 30 are sequentially arranged at left and right intervals, each second terminal 40 is uniformly arranged between two adjacent first fixing portions 31, the first welding portions 33 and the second welding portions 43 are sequentially arranged alternately and side by side, and the insulation body 20 is sequentially provided with a first through groove 21 and a second through groove 22 which penetrate through the splicing cavity 101 at intervals from front to back; the first contact part 32 and the second contact part 42 are respectively positioned in the first through groove 21 and the second through groove 22 and extend into the plugging cavity 101; the first fixing portion 31 and the second fixing portion 41 are completely embedded in the insulating body 20, the first fixing portion 31 and the second fixing portion 41 are coplanar with the upper surface of the insulating body 20, the first fixing portions 31 of the first terminals 30 located at the leftmost side and the rightmost side integrally extend outward to form an auxiliary fixing portion 34, and the auxiliary fixing portion 34 extends out of the insulating body 20; thus, the second terminal 40 does not occupy the thickness and length of the insulating body 20, and the fixing portion does not occupy the thickness of the insulating body 20, so that the thickness and length of the insulating body 20 are reduced, the thin design of the product is realized, and the heat dissipation is facilitated; and, by arranging the first soldering portions 33 and the second soldering portions 43 alternately and side by side in sequence, the soldering portions of the first terminals 30 and the second terminals 40 can be arranged neatly, which is more beneficial to the subsequent soldering. The auxiliary fixing portions 34 are integrally extended outward from the first fixing portions 31 of the leftmost and rightmost first terminals 30, which is more advantageous for positioning between the terminals and external structures.

In this embodiment, the auxiliary fixing portion 34 extends to the outside of the bottom of the insulating body 20, and an arc-shaped groove 341 is concavely formed on a side of the auxiliary fixing portion 34 opposite to the insulating body 20, so as to better facilitate the positioning of the auxiliary fixing portion 34. And the first fixing parts 31 of the first terminals 30 at the leftmost side and the rightmost side are integrally extended upward to form auxiliary positioning parts 35, the auxiliary positioning parts 35 are located at one side of the first welding part 33, and the auxiliary positioning parts 35 are provided with auxiliary positioning holes 351 penetrating through the left side and the right side of the auxiliary positioning parts 35, so as to further facilitate the fixing of the terminals.

All have first draw-in groove 23, second draw-in groove 24 from going to back interval in proper order on the two lateral walls of the left and right sides of insulator 20, all have first joint portion 11, second joint portion 12 from going to back interval in proper order on the two inside walls of the left and right sides of shell 10, shell 10 is from the back forward joint on insulator 20, first joint portion 11, second joint portion 12 card go into in first draw-in groove 23, the second draw-in groove 24 respectively. Therefore, the clamping connection design between the shell 10 and the insulating body 20 can be realized, the assembly is easy, and the assembly efficiency is improved. Here, the auxiliary positioning portion 35 extends to the outside of the second engaging groove 24, and the auxiliary positioning hole 351 is disposed corresponding to the second engaging groove 24.

First draw-in groove 23 has two, and two first draw-in grooves 23 are arranged along the fore-and-aft direction interval in proper order, first joint portion 11 is gone forward from the back in proper order along with the joint of the relative insulator 20 of shell 10 and is gone into in two first draw-in grooves 23 successively. Two second clamping grooves 24 are formed, the two second clamping grooves 24 are sequentially arranged at intervals in the front-back direction, and the auxiliary positioning holes 351 are formed corresponding to the two second clamping grooves 24; the second clamping portions 12 are sequentially clamped into the two second clamping grooves 24 from back to front along with the clamping of the housing 10 relative to the insulating body 20. Therefore, the sectional type clamping structure can be realized, so that a user can feel the stage type clamping effect when assembling, and meanwhile, the clamping accuracy can be ensured by clamping twice.

The insulating body 20 includes a body portion 25 extending in a front-rear direction, and a left extending portion 26 and a right extending portion 27 integrally connected to left and right sides of the body portion 25, respectively, wherein the left extending portion 26, the body portion 25, and the right extending portion 27 form a first insertion groove, the left extending portion 26 integrally extends in the front-rear direction from a left upper surface of the body portion 25, and the right extending portion 27 integrally extends in the front-rear direction from a right upper surface of the body portion 25. The housing 10 includes a main body 13 extending along a front-back direction, and a left sidewall 14 and a right sidewall 15 integrally connected to left and right sides of the main body 13, respectively, the left sidewall 14, the main body 13, and the right sidewall 15 form a second insertion groove, the first insertion groove and the second insertion groove form the insertion cavity 101, the left sidewall 14 integrally extends from a left lower surface of the main body 13 along the front-back direction, and the right sidewall 15 integrally extends from a right lower surface of the main body 13 along the front-back direction. The first clamping groove 23 and the second clamping groove 24 are respectively arranged on the left side extending portion 26 and the right side extending portion 27, and the first clamping portion 11 and the second clamping portion 12 are respectively arranged on the left side wall 14 and the right side wall 15.

The first fixing portion 31 and the second fixing portion 41 are completely embedded in the main body 25, preferably, the first fixing portion 31 and the second fixing portion 41 are coplanar with the upper surface of the main body 25, and the auxiliary fixing portion 34 extends from the bottom of the main body 25; the first through groove 21 and the second through groove 22 are sequentially arranged on the main body 25 at intervals from front to back, and both penetrate through the first insertion groove.

The rear ends of the left extending part 26 and the right extending part 27 extend out of the rear end of the main body 25 to form an abdicating space 102 with the main body 25; the first welding portion 33 and the second welding portion 43 are both located in the relief space 102. Thus, the welding of the welding part in the subsequent process can be facilitated. In the present embodiment, the rear end surface of the insulating body 20 is provided with a positioning groove 201 recessed from the rear to the front, specifically, the positioning groove 201 is formed on the rear end surfaces of the left extending portion 26 and the right extending portion 27.

In this embodiment, the left sidewall 14 and the right sidewall 15 of the housing 10 are provided with positioning protruding strips 103 on the sides facing away from the second inserting groove, and the positioning protruding strips 103 extend along the front-back direction. Thus, the positioning and assembling of the housing and the external structure can be facilitated by the arrangement of the positioning convex strips 103.

In this embodiment, the front end of the left extending portion 26 and the front end of the right extending portion 27 are both integrally protruded with a limiting portion 202, and the front end surface of the housing 10 is limited by the rear end surface of the limiting portion 202.

To sum up, the design of the present invention is mainly characterized in that the first terminals are sequentially arranged at left and right intervals, and the second terminals are arranged between the first fixing portions of two adjacent first terminals, and the first fixing portions and the second fixing portions are all completely embedded in the insulation body, so that the second terminals do not occupy the thickness and length of the insulation body, and the first fixing portions and the second fixing portions are all coplanar with the upper surface of the insulation body, thereby reducing the thickness and length of the insulation body, realizing the thin design of the product, and being more beneficial to heat dissipation; secondly, the auxiliary fixing parts extend outwards integrally from the first fixing parts of the first terminals positioned at the leftmost side and the rightmost side, so that the positioning between the terminals and an external structure is facilitated; and the first welding part and the second welding part are sequentially arranged alternately and side by side, so that the welding parts of the first terminal and the second terminal are arranged neatly, and subsequent welding is facilitated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. A card connector includes a housing, an insulating body and a terminal group; the shell is clamped on the insulating body, and an inserting cavity is formed between the shell and the insulating body; the terminal group is embedded in the insulating body and comprises a first terminal group and a second terminal group, the first terminal group comprises a plurality of first terminals, the second terminal group comprises a plurality of second terminals, the first terminals comprise first fixing parts, first contact parts integrally extending from one ends of the first fixing parts and first welding parts integrally extending from the other ends of the first fixing parts to the outside of the insulating body, and the second terminals comprise second fixing parts, second contact parts integrally extending from one ends of the second fixing parts and second welding parts integrally extending from the other ends of the second fixing parts to the outside of the insulating body; the method is characterized in that:

the first terminals are sequentially arranged at left and right intervals, each second terminal is uniformly distributed between two adjacent first fixing parts, the first welding parts and the second welding parts are sequentially arranged alternately and side by side, the first fixing parts and the second fixing parts are completely embedded in the insulating body, the first fixing parts and the second fixing parts are coplanar with the upper surface of the insulating body, the first fixing parts of the first terminals on the leftmost side and the rightmost side extend outwards integrally to form auxiliary fixing parts, and the auxiliary fixing parts extend out of the insulating body; the insulation body is sequentially provided with a first through groove and a second through groove which penetrate through the plug cavity at intervals from front to back; the first contact part and the second contact part are respectively positioned in the first through groove and the second through groove and extend into the inserting cavity.

2. The card connector of claim 1, wherein: the auxiliary fixing part extends to the outside of the bottom of the insulating body, and an arc-shaped groove is concavely arranged on one side, back to the insulating body, of the auxiliary fixing part.

3. The card connector of claim 1, wherein: the first fixing parts of the first terminals located at the leftmost side and the rightmost side extend upwards integrally to form auxiliary positioning parts, the auxiliary positioning parts are located on one sides of the first welding parts, and auxiliary positioning holes penetrating through the left side and the right side of the auxiliary positioning parts are formed in the auxiliary positioning parts.

4. The card connector of claim 1, wherein: the rear end face of the insulating body is provided with a positioning groove which is concavely arranged from back to front.

5. The card connector of claim 1, wherein: the insulating body comprises a body part extending along the front-back direction and a left side extending part and a right side extending part which are respectively and integrally connected to the left side and the right side of the body part, the left side extending part, the body part and the right side extending part form a first inserting groove in a surrounding mode, the shell comprises a main body part extending along the front-back direction and a left side wall and a right side wall respectively and integrally connected to the left side and the right side of the main body part, the left side wall, the main body part and the right side wall form a second inserting groove in a surrounding mode, the first inserting groove and the second inserting groove form an inserting cavity in a surrounding mode, the left side extending part and the right side extending part are provided with a first clamping groove and a second clamping groove, and the left side wall and the right side wall are provided with a first clamping part and a second clamping part.

6. The card connector of claim 5, wherein: the left side extension portion integrally extends from a left side upper surface of the body portion in the front-rear direction, and the right side extension portion integrally extends from a right side upper surface of the body portion in the front-rear direction.

7. The card connector of claim 5, wherein: the left side wall integrally extends in the front-rear direction from a left side lower surface of the main body portion, and the right side wall integrally extends in the front-rear direction from a right side lower surface of the main body portion.

8. The card connector of claim 5, wherein: the first fixing part and the second fixing part are completely embedded on the body part and are coplanar with the upper surface of the body part; the first through groove and the second through groove are sequentially arranged on the body part at intervals from front to back and penetrate through the first inserting groove.

9. The card connector of claim 5, wherein: the front end of the left side extension part and the front end of the right side extension part are both upwards integrally provided with a limiting part in a protruding mode, and the front end face of the shell is limited by the rear end face of the limiting part.

10. The card connector of claim 5, wherein: and one sides of the left side wall and the right side wall of the shell, which are back to the second inserting groove, are provided with positioning convex strips, and the positioning convex strips extend along the front-back direction.