CN213340803U

CN213340803U - Female terminal and connector using same

Info

Publication number: CN213340803U
Application number: CN202022754193.3U
Authority: CN
Inventors: 董明新; 马洪; 赵亮
Original assignee: Mianyang Yufeng Electronic Technology Co ltd
Current assignee: Mianyang Yufeng Electronic Technology Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-06-01
Anticipated expiration: 2030-11-25

Abstract

The utility model discloses a female terminal and applied this female terminal's connector relates to electronic connection spare technical field, the utility model discloses mainly through setting up the grafting end that the drum constitutes the terminal body, set up three shell fragments simultaneously to when the public terminal of pegging graft, can form stable three point contact, the utility model discloses be applicable to round pin and square needle simultaneously, effectively expanded female terminal's suitability.

Description

Female terminal and connector using same

Technical Field

The utility model relates to an electronic connection spare technical field particularly, relates to a female terminal and applied this female terminal's connector.

Background

The port of the electronic connector generally includes a female terminal, which is generally formed by a terminal body, and the terminal body is formed with a plug end for forming an electrical connection with the male terminal and a tail end for forming an electrical connection with a circuit board or a wire. At present, the contact pin that female terminal adaptation can be divided into square needle and round pin according to the cross-sectional type, and the square needle generally matches the female terminal that has the shell fragment that is Y type symmetrical arrangement and forms electrically conductive contact, and the round pin then generally matches the female terminal that has a plurality of shell fragments of evenly spaced arrangement around the jack and forms electrically conductive contact. Female terminal can not adapt square needle and round pin simultaneously, and the suitability is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a female terminal and use connector of this female terminal, its contact pin that can the adaptation connection different shape specifications.

The utility model discloses a realize like this:

the utility model provides a female terminal, includes integrative stamping forming's terminal body, the terminal body mainly comprises consecutive grafting end, intermediate part and tail end, the grafting end of terminal body comprises a drum, the hole of drum constitutes circle jack, the terminal body still includes three shell fragments of evenly dividing the interval around circle jack axis and arranging, the shell fragment extends and has link and free end along circle jack axis direction, and the link of each shell fragment is connected on the medial extremity of drum, and its free end then towards be close to circle jack axis one side buckle to within the interior edge of circle jack.

Preferably, the intermediate portion is attached to an inner end of the cylinder.

Preferably, the intermediate portion includes a half-cylindrical portion for connecting with the cylinder and a fixing portion for connecting with the half-cylindrical portion;

the fixed part mainly comprises diapire and twice founding the wall, the inner wall of diapire is on a parallel with circle jack axis direction, and one side of twice founding the wall is along linking to each other with the inner wall of diapire perpendicularly, found the wall and extend along the direction that is on a parallel with circle jack axis, found the wall dorsad the side of diapire is formed with the back-off tooth along protruding ground.

Preferably, the number of the inverted teeth formed on each vertical wall is two, and the two inverted teeth on each vertical wall are sequentially arranged along the vertical wall.

Preferably, one of the elastic pieces is punched from the semi-cylindrical part.

Preferably, a through tin blocking groove is further formed in the bottom wall.

Preferably, the intermediate portion further includes a neck portion provided between the half cylinder portion and the fixing portion, the neck portion having a smaller cross-sectional area than the half cylinder portion and the fixing portion, and the half cylinder portion and the fixing portion are connected through the neck portion.

The utility model also provides a connector, including as above a female terminal.

Preferably, the terminal also comprises a square needle which is used for being in adaptive insertion with the female terminal, when the square needle is in adaptive insertion with the female terminal, the side wall on one side of the square needle is in contact with the inner wall of one of the elastic sheets of the female terminal in a fitting manner, and two corner parts of the square needle, which are back to the side wall, are respectively in contact with the other two elastic sheets of the female terminal.

Preferably, the four corners of the square needle are rounded.

Since the technical scheme is used, the beneficial effects of the utility model include:

the utility model discloses mainly constitute the grafting end of terminal body through setting up the drum, set up three shell fragments simultaneously, form stable three point contact, can be applicable to round needle and square needle simultaneously, effectively expanded the suitability of female terminal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a female terminal in embodiment 1 of the present invention;

fig. 2 is a schematic side sectional view of a female terminal according to embodiment 1 of the present invention;

fig. 3 is a schematic front view of embodiment 1 of the present invention;

fig. 4 is a schematic view of the cooperation between the guideline of embodiment 1 of the present invention and the spring plate of the female terminal;

fig. 5 is a schematic structural diagram of the guideline of embodiment 2 of the present invention;

fig. 6 is a schematic diagram of the cooperation between the square needle and the spring plate in the female terminal in embodiment 2 of the present invention.

[ description of specific symbols ]:

1-cylinder, 11-round jack, 12-seam, 2-spring plate, 21-connecting end, 22-free end, 3-middle part, 31-half cylinder part, 32-bottom wall, 33-vertical wall, 34-inverted tooth, 35-tin blocking groove, 36-neck, 4-tail end, 5-square needle and 51-corner.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.

Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or hanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

The main body of this embodiment is a connector, which includes a female terminal, please refer to fig. 1, fig. 2 and fig. 3, the female terminal includes a terminal body formed by integral stamping, the terminal body mainly includes a plug end, a middle portion 3 and a tail end 4 connected in sequence, the plug end of the terminal body is formed by a cylinder 1, an inner hole of the cylinder 1 forms a circular insertion hole 11, the terminal body further includes three elastic sheets 2 arranged around the axis of the circular insertion hole 11 at equal intervals, the elastic sheets 2 extend along the axis direction of the circular insertion hole 11 and have a connecting end 21 and a free end 22, the connecting end 21 of each elastic sheet 2 is connected to the end of the inner side of the cylinder 1, and the free end 22 is bent towards one side close to the axis of the circular insertion hole 11 to the inner edge of the circular insertion hole 11.

The plug end of the female terminal is adapted to a pin in the connector, and the tail end 4 is electrically connected to the circuit board.

The female terminal in this embodiment can be adapted to the round pin and the square pin 5.

When the round pin is inserted in the matching way, the round pin penetrates through the round insertion hole 11 of the cylinder 1 and is inserted between the elastic sheets 2. At this moment, because the free end 22 of the elastic sheet 2 is located within the inner edge of the circular insertion hole 11, the outer edge of the circular needle can extrude each elastic sheet 2 along with the penetration of the outer edge of the circular needle, and each elastic sheet 2 is driven to elastically deform along the side deviating from the axis of the circular insertion hole 11, so that each elastic sheet 2 applies an interference contact force to the circular needle, a stable three-point contact is formed, and the elastic sheets 2 are ensured to form a stable conductive contact with the circular needle.

Referring to fig. 4, when the square pins 5 are inserted, the square pins 5 are inserted into the round insertion holes 11 of the cylinder 1 and inserted between the elastic pieces 2 in a consistent manner. When the square needle 5 is inserted into the female terminal in a matching manner, the side wall of one side of the square needle 5 is in contact with the inner wall of one of the elastic sheets 2 of the female terminal in a fitting manner, and two corner parts 51 of the square needle 5, which are back to the side wall, are respectively in contact with the other two elastic sheets 2 of the female terminal to form stable three-point contact, so that the elastic sheets 2 are ensured to form stable conductive contact with the square needle 5.

It will be understood that the corner 51 of the square 5 is the location where the transition corner of the side wall is formed, and the square 5 has four corners 51.

The female terminal that this embodiment provided can be applicable to round pin and square needle 5 simultaneously, has promoted the suitability of female terminal, simultaneously, when female terminal contacts with the contact pin, can form stable three point contact and strengthen female terminal, connector reliability in vibration, impact.

More specifically, in the present embodiment, the intermediate portion 3 is connected to the inner end of the cylinder 1. Meanwhile, the intermediate portion 3 includes a half-cylinder portion 31 for connecting with the cylinder 1 and a fixing portion connected with the half-cylinder portion 31;

the fixing part mainly comprises a bottom wall 32 and two upright walls 33, wherein the inner wall of the bottom wall 32 is parallel to the axial direction of the circular insertion hole 11, one side of each upright wall 33 is vertically connected with the inner wall of the bottom wall 32, each upright wall 33 extends along the direction parallel to the axial direction of the circular insertion hole 11, and an inverted tooth 34 is convexly formed on the side, opposite to the bottom wall 32, of each upright wall 33.

The half-cylinder 31 is a half-cylinder cut along the axial section of the cylinder 1, and the bottom wall 32 and the upright wall 33 are mainly used for connecting the rubber core on the clamping seat. Wherein, the stuck point, i.e. the back-off tooth 34 is used for embedding the rubber core, and can form a back-off when embedding the rubber core, thereby effectively ensuring the embedding stability between the fixing part and the rubber core.

As a preferred embodiment, in this embodiment, the number of the inverted teeth 34 formed on each standing wall 33 is two, and the two inverted teeth 34 on each standing wall 33 are sequentially arranged along the extending direction of the standing wall 33, so that the inverted effect of the two inverted teeth 34 is more stable when the rubber core is fitted.

Further, in the present embodiment, one of the elastic pieces 2 is punched from the half-cylinder portion 31, specifically, the rear elastic piece, and the other two elastic pieces 2 are front elastic pieces, a seam 12 extending along the axial direction of the circular insertion hole 11 is formed on the metal sheet for manufacturing the cylinder 1 after punching, and the seam 12 is located between the two front elastic pieces in the transverse direction.

More specifically, in this embodiment, the bottom wall 32 is further provided with a through tin blocking groove 35, wherein the tin blocking groove is mainly used for preventing solder from climbing up when the connector is soldered by the SMT, so as to affect the contact performance, and ensure the reliability of the contact. In this embodiment, the intermediate portion 3 further includes a neck portion 36 provided between the half-cylinder portion 31 and the fixing portion, the neck portion 36 having a smaller cross-sectional area than the half-cylinder portion 31 and the fixing portion, and the half-cylinder portion 31 and the fixing portion are connected by the neck portion 36.

Example 2

Referring to fig. 5, the embodiment 2 is substantially the same as the embodiment 1, and the main difference between the two embodiments is that in the embodiment 2, the four corners 51 of the guideline 5 are rounded. This is because: when the female terminal is adopted to adapt to the square needle 5, the corner 51 of the square needle 5 can be in contact with two spring plates 2, and if the square needle 5 with a square section is directly adopted, the cross-sectional area of the square needle 5 is limited, and only a small cross-sectional area can be adopted. Accordingly, the present embodiment modifies the corner 51 of the square pin 5 into a rounded shape, and as shown in fig. 6, the cross-sectional area of the square pin 5 is increased when the same female terminal is used.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a female terminal, includes integrative stamping forming's terminal body, the terminal body mainly comprises consecutive grafting end, intermediate part and tail end, the grafting end of terminal body comprises a drum, the hole of drum constitutes circle jack, a serial communication port, the terminal body still includes three shell fragments of arranging around circle jack axis partition interval equally, the shell fragment extends and has link and free end along circle jack axis direction, and the link of each shell fragment is connected on the medial extremity of drum, and its free end then towards being close to circle jack axis one side buckle to the interior edge of circle jack within.

2. The female terminal of claim 1 wherein said intermediate portion is attached to an inside end of said barrel.

3. The female terminal as claimed in claim 1, wherein said intermediate portion includes a half cylindrical portion for coupling with said cylindrical portion and a fixing portion for coupling with said half cylindrical portion;

4. The female terminal according to claim 3, wherein the number of the inverted teeth formed on each of the vertical walls is two, and the two inverted teeth on each of the vertical walls are arranged in sequence along the extending direction of the vertical wall.

5. The female terminal as claimed in claim 3, wherein one of the resilient pieces is punched from said half-cylindrical portion.

6. The female terminal of claim 3 wherein said bottom wall further defines a solder dam extending therethrough.

7. The female terminal as claimed in claim 3, wherein said intermediate portion further comprises a neck portion disposed between said half-cylindrical portion and said holding portion, said neck portion having a smaller cross-sectional area than said half-cylindrical portion and said holding portion, said half-cylindrical portion and said holding portion being connected by said neck portion.

8. A connector comprising a female terminal as claimed in any one of claims 1 to 7.

9. The connector of claim 8, further comprising a pin adapted to mate with the female terminal, wherein when the pin is mated with the female terminal, a side wall of one side of the pin contacts an inner wall of one of the resilient pieces of the female terminal, and two corners of the pin facing away from the side wall contact the other two resilient pieces of the female terminal.

10. The connector of claim 9, wherein each of the four corners of the square needle has a rounded shape.