CN220731844U - Elastic terminal and connector using same - Google Patents

Abstract

The present utility model relates to the field of conductive connection, and more particularly, to an elastic terminal and a connector using the same. At least one of the two elastic arms of the elastic terminal is connected with an abutting section at one side of a contact part of the elastic terminal, which is far away from the fixed plate section, the abutting section extends towards the other elastic arm and is used for elastically abutting against the abutting section or the contact part of the other elastic arm to form a closed transmission channel in use. According to the utility model, the structure of the elastic terminal is improved, and by arranging the abutting sections, when the two contact parts are abutted against each other in the use process of the elastic terminal, the abutting sections of one elastic arm are abutted against the abutting sections or the contact parts of the other elastic arm, so that the contact parts of the two elastic arms are supported by the abutting sections, the reliable abutting of the contact parts and the adaptive conductive ends is ensured, and meanwhile, the fixed plate sections of the elastic terminal, the elastic arms and the abutting sections jointly enclose a closed structure to form a closed transmission channel, so that the current path is increased from 1 to 2, and the transmission rate is improved.

Description

Elastic terminal and connector using same

Technical Field

The present utility model relates to the field of conductive connection, and more particularly, to an elastic terminal and a connector using the same.

Background

Spring terminals are commonly used in connectors to act as spring contacts for making spring contact, ultimately enabling the transmission of signals or currents. The LGA connector is a novel electric connector and comprises a plate-shaped insulating seat, a plurality of terminal installation grooves are formed in the plate-shaped insulating seat, elastic terminals are installed in the terminal installation grooves and are provided with contact parts exposed from two sides of the plate-shaped insulating seat, and the contact parts on two sides are respectively used for elastically abutting against the adaptive conductive ends on two sides. The chinese patent publication No. CN2755829Y discloses a circuit-changeable LGA terminal structure, which comprises a side plate for fixing, wherein upper and lower elastic arms are respectively extended from the side plate, the ends of the two elastic arms are respectively provided with upper and lower contact portions, and the non-contact portion of the elastic arm is provided with a bending portion protruding toward the other elastic arm to make the elastic arm take a V shape, when the upper and lower contact portions are respectively abutted against the adapting conductive end and pressed, the upper and lower elastic arms are mutually close, and are abutted against the bottom of the V shape.

The elastic terminal shortens the conductive loop by propping against the V-shaped bottom when in use, and simultaneously forms a fulcrum through mutual propping, so that the contact part is supported, but the elastic terminal is of an opening structure as a whole, the positions of the two contact parts are still the tail ends of the cantilever structure, the reliable contact between the contact part and the adaptive conductive end can not be completely ensured under the vibration environment, and the transmission rate is limited.

The chinese patent application publication No. CN107359448A discloses an electrical connector and an electronic device, in which two ends of a base portion of a terminal used in the electrical connector are respectively extended with an elastic arm, an end portion of the elastic arm is bent and extended with a contact portion, an end portion of the contact portion is bent and extended with an abutment portion, and when a butting element and an electronic element are respectively pressed and contacted with two contact portions of the terminal, the two abutment portions are mutually abutted. Thus, the terminal integrally forms a closed structure to form a closed transmission channel, and the transmission rate is improved. However, in this terminal structure, since the abutting portion includes the first elastic portion extending obliquely from the contact portion downward toward away from the base portion and the second elastic portion extending obliquely from the first elastic portion downward toward the base portion, a portion of each of the first elastic portion and the second elastic portion is located on a side of the contact portion away from the base portion, which increases the occupied space of the terminal, and when the terminals are densely arranged in the connector housing, the overall volume of the connector is large, and the signal transmission density is reduced.

Disclosure of Invention

The utility model aims to provide an elastic terminal which is used for solving the problems that the existing elastic terminal occupies a large space and reduces the signal transmission density of a connector. The utility model also provides a connector for solving the problem of low transmission density of the existing connector.

The elastic terminal comprises a fixed plate section, two elastic arms which are opposite up and down are respectively hung on one side of the fixed plate section, an upper contact part and a lower contact part are respectively arranged on the two elastic arms, at least one side, far away from the fixed plate section, of each of the two elastic arms is connected with an abutting section, the abutting section extends towards the other elastic arm and is used for being elastically abutted with the abutting section or the contact part of the other elastic arm to form a closed transmission channel when in use, the abutting section is folded back towards one side of the fixed plate section relative to the elastic arm and is positioned between the end part of the elastic arm and the fixed plate section, the abutting section comprises a vertical extending section which extends up and down and an inclined extending section which extends obliquely towards the fixed plate section, and the abutting sections corresponding to the two elastic arms are abutted with each other at the end parts of the inclined extending sections.

According to the utility model, the structure of the elastic terminal is improved, and by arranging the abutting sections, when the two contact parts are abutted against each other in the use process of the elastic terminal, the abutting sections of one elastic arm are abutted against the abutting sections or the contact parts of the other elastic arm, so that the contact parts of the two elastic arms are supported by the abutting sections, the reliable abutting of the contact parts and the adaptive conductive ends is ensured, and meanwhile, the fixed plate sections of the elastic terminal, the elastic arms and the abutting sections jointly enclose a closed structure to form a closed transmission channel, so that the current path is increased from 1 to 2, and the transmission rate is improved; the abutting section is located between the end part of the spring arm and the fixed plate section, so that the elastic capacity of the spring arm is guaranteed, the occupied space of the abutting section is reduced to the greatest extent, the arrangement distance of the elastic terminals can be reduced as much as possible during use, the arrangement density of the elastic terminals is increased, the size of the whole connector insulating seat is reduced, high density and miniaturization are facilitated, the abutting section is further arranged to be in a form comprising a vertical extending section extending up and down and an inclined extending section extending obliquely towards the fixed plate section, the vertical extending section is arranged, on one hand, the abutting section can provide more reliable support in the up-down direction as much as possible, meanwhile, the included angle between the abutting section and the spring arm is increased as much as possible, stress concentration at the place is reduced, and the inclined extending section can provide better elastic support when the two abutting sections are mutually abutted.

Further, the abutting sections are arranged on the two elastic arms. Therefore, the contact parts of the two spring arms are supported to be close to each other, and the contact reliability of the contact parts at the two sides is ensured to be close to each other.

Further, the two spring arms and the abutting sections on the two spring arms are arranged symmetrically up and down. On the one hand, the contact parts of the two spring arms are guaranteed to have the same abutting reliability, the mounting directions of the upper end and the lower end of the elastic terminal are not required to be distinguished when the elastic terminal is mounted in the terminal mounting hole, the assembly process is simplified, and the universality is good.

Further, the two elastic arms are straight arms extending obliquely, the oblique extending directions of the two elastic arms are opposite, and the contact part is arranged at the end part of the elastic arm. The structure is simple, the processing aspect is realized, and the dimension in the height direction is reduced as much as possible.

Further, the fixed plate section, the spring arm and the abutting section are integrally connected. The mode of integral bending and forming is adopted, the processing is convenient, the manufacturing cost is low, and the elastic capacity of the elastic arm and the abutting section can be better ensured.

Further, the contact part is of a convex hull structure formed by stamping on the spring arm. The convex hull structure is formed by stamping and is used as a contact part, so that the manufacturing is convenient, and the convex hull structure can be reliably abutted with the adaptive conductive end.

Further, the contact part is an arc-shaped protruding structure formed by bending the spring arm. The arc-shaped protruding structure is formed by bending to serve as a contact part, so that the manufacturing is convenient, and the structure is reliable and can be reliably abutted to the adaptive conductive end.

The connector comprises an insulating seat, wherein a terminal mounting hole is formed in the insulating seat, an elastic terminal is mounted in the terminal mounting hole, two contact parts of the elastic terminal are exposed from two ends of the terminal mounting hole respectively, the elastic terminal comprises a fixed plate section, two elastic arms which are opposite up and down are respectively hung on one side of the fixed plate section, the two elastic arms are respectively provided with an upper contact part and a lower contact part, at least one side of the contact part of the two elastic arms, which is far away from the fixed plate section, is connected with an abutting section, the abutting section extends towards the other elastic arm and is used for being elastically abutted with the abutting section or the contact part of the other elastic arm to form a closed transmission channel in use, the abutting section is folded back towards one side of the fixed plate section relative to the elastic arm and is positioned between the end part of the elastic arm and the fixed plate section, the abutting section comprises a vertical extending section which extends up and down and an inclined extending section which extends towards the fixed plate section, and the abutting sections corresponding to each other abutting section abuts against the end part of the inclined extending section.

According to the connector disclosed by the utility model, the structure of the elastic terminal is improved, and by arranging the abutting sections, when two contact parts are abutted against each other in the use process of the elastic terminal, the abutting sections of one elastic arm are abutted against the abutting sections or the contact parts of the other elastic arm, so that the contact parts of the two elastic arms are supported by the abutting sections, the reliable abutting of the contact parts and the adapting conductive ends is ensured, and meanwhile, the fixed plate sections of the elastic terminal, the elastic arms and the abutting sections jointly enclose a closed structure to form a closed transmission channel, so that a current path is increased from 1 to 2, and the transmission rate is improved; the abutting section is located between the end part of the spring arm and the fixed plate section, so that the elastic capacity of the spring arm is guaranteed, the occupied space of the abutting section is reduced to the greatest extent, the arrangement distance of the elastic terminals can be reduced as much as possible during use, the arrangement density of the elastic terminals is increased, the size of the whole connector insulating seat is reduced, high density and miniaturization are facilitated, the abutting section is further arranged to be in a form comprising a vertical extending section extending up and down and an inclined extending section extending obliquely towards the fixed plate section, the vertical extending section is arranged, on one hand, the abutting section can provide more reliable support in the up-down direction as much as possible, meanwhile, the included angle between the abutting section and the spring arm is increased as much as possible, stress concentration at the place is reduced, and the inclined extending section can provide better elastic support when the two abutting sections are mutually abutted.

Further, the abutting sections are arranged on the two elastic arms. Therefore, the contact parts of the two spring arms are supported to be close to each other, and the contact reliability of the contact parts at the two sides is ensured to be close to each other.

Further, the two spring arms and the abutting sections on the two spring arms are arranged symmetrically up and down. On the one hand, the contact parts of the two spring arms are guaranteed to have the same abutting reliability, the mounting directions of the upper end and the lower end of the elastic terminal are not required to be distinguished when the elastic terminal is mounted in the terminal mounting hole, the assembly process is simplified, and the universality is good.

Further, the two elastic arms are straight arms extending obliquely, the oblique extending directions of the two elastic arms are opposite, and the contact part is arranged at the end part of the elastic arm. The structure is simple, the processing aspect is realized, and the dimension in the height direction is reduced as much as possible.

Further, the fixed plate section, the spring arm and the abutting section are integrally connected. The mode of integral bending and forming is adopted, the processing is convenient, the manufacturing cost is low, and the elastic capacity of the elastic arm and the abutting section can be better ensured.

Further, the contact part is of a convex hull structure formed by stamping on the spring arm. The convex hull structure is formed by stamping and is used as a contact part, so that the manufacturing is convenient, and the convex hull structure can be reliably abutted with the adaptive conductive end.

Further, the contact part is an arc-shaped protruding structure formed by bending the spring arm. The arc-shaped protruding structure is formed by bending to serve as a contact part, so that the manufacturing is convenient, and the structure is reliable and can be reliably abutted to the adaptive conductive end.

Drawings

Fig. 1 is a schematic structural view of a first embodiment of a connector according to the present utility model;

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a cross-sectional view of the connector showing the position of the spring terminals when not in use;

FIG. 4 is a cross-sectional view of a connector showing the position of a spring terminal when connected to two connectors in mating;

fig. 5 is a schematic structural view of an elastic terminal in a first embodiment of the connector of the present utility model;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a top view of FIG. 5;

fig. 8 is a perspective view of the spring terminal shown in fig. 5 in a natural state;

fig. 9 is a perspective view of the spring terminal shown in fig. 5 in a use state;

fig. 10 is a schematic structural view of an elastic terminal in another embodiment of the connector of the present utility model;

FIG. 11 is a side view of FIG. 10;

fig. 12 is a perspective view of the spring terminal shown in fig. 10 in a natural state.

In the figure: 1. fixing the plate section; 10. a clamping structure; 2. a spring arm; 20. a contact portion; 21. a vertically extending section; 22. an inclined extension; 23. an abutting portion; 9. a connector; 90. a terminal mounting hole; 91. and an elastic terminal.

Detailed Description

The features and capabilities of the present utility model are described in further detail below in connection with the examples.

Embodiment one of the connector of the present utility model:

in the connector of the present embodiment, an LGA connector is taken as an example, and as shown in fig. 1 to 4, the connector 9 specifically includes a plate-shaped insulating base, terminal mounting holes 90 are provided on the plate-shaped insulating base according to a certain arrangement rule, and elastic terminals 91 are mounted in the terminal mounting holes 90, and the elastic sheet is an LGA terminal suitable for the LGA connector, which has contact portions 20 exposed from both ends of the terminal mounting holes 90, respectively. When the connector 9 is in use, two sides of the insulating base are respectively used for being in close fit with the adapting connector 9, and two side contact parts 20 of the elastic terminals 91 exposed from the terminal mounting holes 90 are respectively in abutting contact with the electric connection sections of the adapting connector 9.

The connector of the present utility model mainly improves the structure of the elastic terminal, and the connector of the present embodiment is taken as an example to facilitate the explanation of the structure of the elastic terminal, and the "upper" and "lower" referred to below mainly refer to the orientations shown in the drawings, and do not necessarily limit the orientations of the objects.

As shown in fig. 5 to 9, the elastic terminal 91 includes a fixing plate section 1, and the fixing plate section 1 is used for fixedly connecting with the terminal mounting hole 90, so that the elastic terminal 91 is kept fixed in position in the terminal mounting hole 90. Both sides of the plate width direction of the fixed plate section 1 are respectively provided with a concave-convex structure, the concave-convex structure forms a clamping structure, and the fixed plate section 1 and the hole wall of the terminal mounting hole 90 are in local interference fit through the clamping structure to realize forced loading and fixing. The length of the fixing plate section 1 is smaller than the length of the terminal mounting hole 90, i.e., the thickness of the insulating base, without exposing both side surfaces of the insulating base.

The upper and lower both ends position of fixed plate section 1 is equipped with two relative bullet arm 2 respectively, and two bullet arm 2 all hang to the homonymy from fixed plate section 1, and two bullet arm 2 incline extension than fixed plate section 1, and the incline direction of two bullet arm 2 is opposite, and one slope is upwards promptly, and another slope is downwards. The ends of the overhanging ends of the two spring arms 2 are provided with contact portions 20, and the contact portions 20 of the two spring arms 2 are opposite to each other and are used for respectively abutting against the two adapting connectors 9 on the upper side and the lower side of the elastic terminal 91. The spring arm 2 provides an elastic abutment force to the contact portion 20 when conducting contact.

The end of the overhanging end of the spring arm 2 is also connected with an abutting section, the abutting section extends from the end of the spring arm 2, the abutting section connected on the upper spring arm 2 is positioned below the upper contact portion 20, and the abutting section connected on the lower spring arm 2 is positioned above the lower contact portion 20. In the use process of the elastic terminal 91, when the upper contact portion 20 and the lower contact portion 20 are pressed to cause elastic deformation of the elastic arm 2, the ends of the two abutting sections abut against each other, and at the moment, the abutting of the abutting sections provides elastic support for the contact portion 20, so that the position of the contact portion 20 is ensured not to change any more, and reliable contact between the contact portion 20 and the adaptive conductive terminal is ensured. At this time, the fixing plate section 1, the spring arm 2 and the abutting section together form a ring-shaped closed structure, so that the original elastic terminal 91 is changed from a C-shaped semi-closed shape to a closed ring shape, and two paths of conductive paths are formed at two sides of the upper and lower contact parts 20, thereby improving the transmission rate of the elastic terminal 91.

In a more optimized design, the abutting section is folded back towards the side where the fixing plate section 1 is located relative to the spring arm 2 and is located at a position between the end part of the spring arm 2 and the fixing plate section 1, in other words, in the up-down direction, the projection of the abutting section does not exceed the projection of the spring arm 2 in the direction away from the fixing plate section 1, so that the space occupied by the elastic terminal 91 in the extending direction of the spring arm 2 is reduced as much as possible, when the connector is used, the abutting section 23 can be ensured to move towards the side biased towards the fixing plate section 1 when the terminal is stressed, the arrangement distance of the elastic terminal 91 can be reduced as much as possible, the arrangement density of the elastic terminal 91 is increased, and the size of the insulation seat of the whole connector 9 is reduced, so that the connector is beneficial to realizing high density and miniaturization.

Specifically, the abutting section comprises a vertical extending section 21 extending up and down and an inclined extending section 22 extending obliquely towards the fixed plate section 1, the structure pulls the distance between the upper elastic arm 2 and the lower elastic arm 2 apart, the included angle between the abutting section and the elastic arm 2 is increased as much as possible, and the stress concentration at the position is reduced. At the same time, the angle between the vertical extension 21 and the inclined extension 22 is greater than 90 °, which can provide better elastic support when the two abutment sections abut each other. Of course, in other embodiments, the inclined extension 22 may be at an angle of between 90-180 ° from the vertical extension 21 when replaced with an extension at other angles of inclination. The end of the inclined extension section 22 is bent to form a circular arc-shaped abutting portion 23, and the abutting portions of the two spring arms 2 abut against each other at the abutting portion 23 at the end of the inclined extension section 22. The circular arc-shaped abutting portion 23 can achieve reliable contact of the abutting portion 23 in the case of a change in dimensional tolerance or compression state.

In this embodiment, the elastic terminal 91 is integrally formed by punching and bending a sheet material, and the fixing plate section 1, the spring arm 2 and the abutting section are integrally connected, so that the processing is convenient, the manufacturing cost is low, the spring arm 2 is formed by bending the fixing plate section 1, the abutting section is formed by bending the tail end of the spring arm 2, and the spring arm 2 and the abutting section can have reliable elastic deformation capability.

In addition, in the embodiment, the spring arms 2 and the abutting sections on the upper side and the lower side of the fixed plate section 1 are symmetrically arranged, so that the processing technology is simplified, the abutting reliability of the two contact parts 20 is kept consistent, and the direction of the elastic terminals 91 is not required to be distinguished when the elastic terminals are installed in the terminal installation holes 90, so that the assembly process is simplified.

In addition, the specific structure of the contact portion 20 may be a convex hull structure formed by punching on the spring arm 2, and this arrangement mode is simple in machining and forming, reliable in structure and capable of reliably abutting against the adaptive conductive end.

The connector of the utility model is of course not limited to the embodiments described above, but other variants based on the design concept of the utility model are provided below.

For example, in other embodiments, the number of the abutting sections is different from that of the above-described embodiments, in the above-described embodiments, the upper and lower spring arms are connected with the abutting sections, and the end abutting portions of the two abutting sections abut against each other in use.

For example, in other embodiments, the shape and structure of the spring arm and the abutting section are different from those of the above-described embodiments, in the above-described embodiments, the spring arm and the abutting section are symmetrically arranged, and in the present embodiment, the shape of the spring arm and the abutting section on the upper side is different from that of the spring arm and the abutting section on the lower side, specifically, the spring arm and the abutting section are arranged according to actual needs.

For another example, in other embodiments, the first difference from the above-described embodiments is the extending direction of the abutting section, in the above-described embodiments, the abutting section is located in the space region between the end of the spring arm and the fixing plate section, in this embodiment, the abutting section extends from the end of the spring arm to the side away from the fixing plate section, and when the spring terminal is not in use, the spring terminal is similar to a C-shape, and when in use, the two abutting sections abut up and down on the side of the contact portion away from the fixing plate section.

For another example, in other embodiments, the shape of the abutting section is different from the above-described embodiments, in the above-described embodiments, the abutting section includes a vertically extending section and an obliquely extending section, in this embodiment, the abutting section may be curved or a broken line section, and the inclination angle and direction of each of the broken line sections may be set according to actual use conditions.

As another example, the structure of the contact portion is different from the above-described embodiment, and in other embodiments, as shown in fig. 10-12, the contact portion 20 is an arc-shaped protruding structure formed by bending the spring arm 2, or the contact portion may be directly formed by a side surface of the spring arm, or a spherical bump is welded on the spring arm to form the contact portion.

The specific structure of the embodiment of the elastic terminal of the present utility model is the same as that of the embodiment of the connector described above, and will not be described herein.

The above description is only a preferred embodiment of the present utility model, and the patent protection scope of the present utility model is defined by the claims, and all equivalent structural changes made by the specification and the drawings of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The utility model provides an elastic terminal, includes fixed plate section (1), and one side of fixed plate section (1) is hung respectively has two bullet arm (2) that are relative from top to bottom, is equipped with two upper and lower contact portion (20) on two bullet arm (2) respectively, characterized by, be connected with the butt section on one side of keeping away from fixed plate section (1) of its contact portion (20) on two bullet arm (2), the butt section extends towards another bullet arm (2), and is used for and the butt section or the contact portion (20) department elasticity butt of another bullet arm (2) and enclose into closed transmission channel when using, the butt section is relative bullet arm (2) to the one side inflection extension that fixed plate section (1) was located, and is in the position between bullet arm (2) tip and the fixed plate section (1), the butt section is including vertical extension section (21) that extend from top to bottom and slope extension section (22) that incline towards fixed plate section (1), the butt section that two bullet arm (2) correspond is in the tip each other of slope extension section (22).

2. Spring terminal according to claim 1, characterized in that the abutment sections are provided on both spring arms (2).

3. The spring terminal according to claim 2, wherein the spring arms (2) and the abutment sections thereon are arranged symmetrically up and down.

4. A spring terminal according to any one of claims 1-3, characterized in that the spring arms (2) are straight arms extending obliquely, the oblique extension directions of the spring arms (2) are opposite, and the contact portion (20) is provided at the end of the spring arm (2).

5. A sprung terminal according to any one of claims 1 to 3, characterised in that the fixed plate section (1), the sprung arm (2) and the abutment section are integrally connected.

6. A spring terminal according to any one of claims 1-3, wherein the contact portion (20) is a convex hull structure stamped and formed on the spring arm (2).

7. A spring terminal according to any one of claims 1-3, wherein the contact portion (20) is an arc-shaped convex structure formed by bending the spring arm (2).

8. A connector comprising an insulating base, wherein a terminal mounting hole (90) is provided in the insulating base, an elastic terminal (91) is mounted in the terminal mounting hole (90), and two contact portions (20) of the elastic terminal (91) are exposed from both ends of the terminal mounting hole (90), respectively, characterized in that the elastic terminal (91) is an elastic terminal (91) according to any one of claims 1 to 7.