CN220138769U

CN220138769U - Tin-climbing-prevention FPC connector terminal

Info

Publication number: CN220138769U
Application number: CN202321769900.3U
Authority: CN
Inventors: 王盼云
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-12-05
Anticipated expiration: 2033-07-06

Abstract

The utility model discloses an anti-creeping tin FPC connector terminal which comprises a main body part, welding pins, an elastic arm and a connecting arm which are integrally connected, wherein the elastic arm and the connecting arm are arranged at the same end of the main body part, a plugging groove is formed between the elastic arm and the connecting arm, the welding pins are arranged at one end of the main body part far away from the plugging groove, a first blocking groove and a second blocking groove which are not communicated with each other are arranged on the main body part, the first blocking groove and the second blocking groove penetrate through two surfaces in the thickness direction of the main body part, the first blocking groove is provided with a first opening positioned between the welding pins and the elastic arm, the second blocking groove is provided with a second opening positioned between the welding pins and the connecting arm, and one end of the first blocking groove far away from the first opening and one end of the second blocking groove far away from the second opening are flush or staggered in the plugging direction of the plugging groove. The utility model can prevent solder from climbing from the main body part to the side surfaces of the elastic arm and the connecting arm, and improve the conductive stability of the FPC connector.

Description

Tin-climbing-prevention FPC connector terminal

Technical Field

The utility model relates to the technical field of FPC connectors, in particular to a tin-climbing-preventing FPC connector terminal.

Background

The FPC is a flexible printed circuit board which is made of polyimide or polyester film as a base material, has high reliability and excellent flexibility, is called a soft board for short, and has the characteristics of high wiring density, light weight and thin thickness. The FPC connector mainly comprises an insulating shell and a conductive terminal with a soldering leg, the FPC connector is connected with a circuit board through reflow soldering, and in the reflow soldering process, solder can climb over the side surface of the conductive terminal due to the connection of the soldering leg with a pad on the surface of the circuit board, and the contact part of the conductive terminal is polluted, so that the conductive performance of the FPC connector is affected.

Disclosure of Invention

The utility model provides a tin-climbing-preventing FPC connector terminal, which can prevent solder from climbing to the side surface of the connector terminal when the FPC connector is welded, and improve the conductivity stability of the FPC connector.

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

the utility model provides a prevent creeping tin FPC connector terminal, includes main part, welding foot, elastic arm and the linking arm that integrated into one piece connects, the same end of main part is located to elastic arm and linking arm, form the jack-in groove between elastic arm and the linking arm, the welding foot is located the main part and is kept away from the one end of jack-in groove, be equipped with first separation groove and the second separation groove that each other does not communicate in the main part, two surfaces of main part thickness direction are all run through to first separation groove and second separation groove, first separation groove has the first opening that is located between welding foot and the elastic arm, the second separation groove has the second opening that is located between welding foot and the linking arm, and first separation groove keeps away from the one end of first opening and second separation groove keeps away from the one end parallel and level or crisscross on the grafting direction of jack-in groove. Through set up first separation groove and the second separation groove that each other does not communicate on main part, and make first separation groove keep away from first open-ended one end and second separation groove keep away from second open-ended one end parallel and level or crisscross in the grafting direction of jack groove to make the solder separate by the separation groove completely, prevent that the solder from climbing from main part to the side surface of elastic arm and linking arm, improve FPC connector's conductive stability.

As a preferred embodiment, the welding leg extends from the left side of the main body to the upper side of the main body, the elastic arm extends from the left side of the main body to the lower side of the main body, and the connecting arm extends from the right side of the main body to the lower side of the main body.

Preferably, the first opening is located on the left side of the main body, and the second opening is located on the right side of the main body.

As a preferred aspect, the first blocking groove and the second blocking groove each have an inclined section extending toward the upper side of the main body portion.

As a preferable mode, a clamping convex point is arranged on the left side of the main body part.

As a preferred aspect, the first opening is located at an underside of the snap bump.

As a preferable scheme, the left side surface of the welding foot is a welding surface.

As a preferred scheme, the lower end of the elastic arm and the side facing the plugging groove are provided with conductive contacts.

As a preferable scheme, a limit groove is arranged at one side of the lower end of the connecting arm, which faces the inserting groove.

As a preferable scheme, the limit groove is arc-shaped.

Compared with the prior art, the FPC connector has obvious advantages and beneficial effects, in particular, the first blocking groove and the second blocking groove which are not communicated with each other are arranged on the main body part, and one end of the first blocking groove far away from the first opening and one end of the second blocking groove far away from the second opening are flush or staggered in the plugging direction of the plugging groove, so that the solder is completely separated by the blocking groove, the solder is prevented from climbing to the side surfaces of the elastic arm and the connecting arm from the main body part, and the conductive stability of the FPC connector is improved.

For a clearer description of the structural features, technical means, and specific objects and functions achieved by the present utility model, the present utility model will be further described in detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

the attached drawings are used for identifying and describing:

10. body 11, first barrier groove 12, second barrier groove

13. Clamping convex point 20, welding pin 21 and welding surface

30. Spring arm 31, conductive contact 40, and connecting arm

41. Limit groove 50 and inserting groove

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and to simplify the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be configured and operated in specific directions, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1, the tin-climbing-prevention FPC connector terminal of the present utility model includes a body portion 10, a soldering leg 20, an elastic arm 30 and a connecting arm 40 which are integrally connected, wherein the elastic arm 30 and the connecting arm 40 are disposed at the same end of the body portion 10, a plugging slot 50 is formed between the elastic arm 30 and the connecting arm 40, the soldering leg 20 is disposed at one end of the body portion 10 away from the plugging slot 50, a first blocking slot 11 and a second blocking slot 12 which are not communicated with each other are disposed on the body portion 10, the first blocking slot 11 and the second blocking slot 12 penetrate through two surfaces of the body portion 10 in the thickness direction, the first blocking slot 11 has a first opening between the soldering leg 20 and the elastic arm 30, the second blocking slot 12 has a second opening between the soldering leg 20 and the connecting arm 40, and one end of the first blocking slot 11 away from the first opening and one end of the second blocking slot 12 away from the second opening are flush or staggered in the plugging direction of the plugging slot 50.

In the present utility model, the welding pin 20 extends from the left side of the main body 10 to the upper side of the main body 10, the left side of the welding pin 20 is a welding surface 21, the elastic arm 30 extends from the left side of the main body 10 to the lower side of the main body 10, the conductive contact 31 is disposed at the lower end of the elastic arm 30 and at the side facing the socket 50, the connecting arm 40 extends from the right side of the main body 10 to the lower side of the main body 10, the limiting groove 41 is disposed at the lower end of the connecting arm 40 and at the side facing the socket 50, and the limiting groove 41 is in a circular arc shape. The first opening is located at the left side of the main body 10, the second opening is located at the right side of the main body 10, the left side of the main body 10 is provided with a clamping convex point 13, and the first opening is located at the lower side of the clamping convex point 13. In order to improve the tin-climbing prevention effect, the first and second barrier grooves 11 and 12 each have an inclined section extending toward the upper side of the main body portion 10.

In summary, according to the utility model, the first blocking groove and the second blocking groove which are not communicated with each other are formed in the main body, and the end of the first blocking groove away from the first opening and the end of the second blocking groove away from the second opening are flush or staggered in the plugging direction of the plugging groove, so that the solder is completely separated by the blocking groove, the solder is prevented from climbing over the side surfaces of the elastic arm and the connecting arm from the main body, and the conductive stability of the FPC connector is improved.

The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, so any modifications, equivalents, improvements, etc. of the above embodiments according to the present utility model are still within the scope of the present utility model.

Claims

1. The utility model provides a prevent creeping tin FPC connector terminal, its characterized in that, including integrated into one piece connected main part, welding foot, elastic arm and linking arm, the same end of main part is located to elastic arm and linking arm, form the jack-in groove between elastic arm and the linking arm, the welding foot is located the main part and is kept away from the one end of jack-in groove, be equipped with first separation groove and the second separation groove that each other does not communicate in the main part, two surfaces of main part thickness direction are all run through to first separation groove and second separation groove, first separation groove has the first opening that is located between welding foot and the elastic arm, the second separation groove has the second opening that is located between welding foot and the linking arm, and the one end that first opening was kept away from to first separation groove and the one end that the second separation groove kept away from the second opening are parallel and level or crisscross in the jack-in the grafting direction of jack-in groove.

2. The solder-climbing prevention FPC connector terminal according to claim 1, wherein the solder leg extends from a left side of the main body to an upper side of the main body, the elastic arm extends from the left side of the main body to a lower side of the main body, and the connection arm extends from a right side of the main body to the lower side of the main body.

3. The tin-climbing prevention FPC connector terminal according to claim 1 or 2, wherein the first opening is located on the left side of the main body portion, and the second opening is located on the right side of the main body portion.

4. A tin-climbing prevention FPC connector terminal according to claim 3, wherein the first blocking groove and the second blocking groove each have an inclined section extending toward an upper side of the main body portion.

5. The tin-climbing prevention FPC connector terminal according to claim 1, wherein a left side of the main body portion is provided with a snap bump.

6. The solder-climbing prevention FPC connector terminal of claim 5, wherein the first opening is located on an underside of the snap-fit bump.

7. The anti-creeping tin FPC connector terminal of claim 1, wherein the left side surface of the soldering leg is a soldering surface.

8. The tin-climbing prevention FPC connector terminal according to claim 1, wherein a conductive contact is provided at a side of the elastic arm facing the insertion groove at a lower end thereof.

9. The tin-climbing prevention FPC connector terminal according to claim 1, wherein a limit groove is provided at a side of the connection arm facing the insertion groove at a lower end thereof.

10. The anti-creeping tin FPC connector terminal of claim 9, wherein the limit groove is circular arc-shaped.