CN110534941A - It is electrically connected elastic slice, connector and electronic equipment - Google Patents

Abstract

The invention discloses a kind of electric connection elastic slices, connector and electronic equipment, the electric connection elastic slice includes in plate shaped weld part, the two sides that the weld part is oppositely arranged, short transverse along the weld part each extends over out the first elastic portion and the second elastic portion upwards, first elastic portion and second elastic portion pass through multiple bending and molding, first elastic portion extends contact portion far from one end of the weld part, the contact portion is parallel with the weld part, second elastic portion is resisted against the bottom surface of the contact portion far from one end of the weld part, to be supported to the contact portion, first elastic portion and second elastic portion are fallen on the weld part in the projection of plane where the weld part, first elastic portion and second elastic portion are in double-U-shaped runway shape, the contact portion exists When compression, the short transverse along the weld part is moved back and forth.The present invention, which can reduce, to be accounted for plate suqare, promotes contact stabilization.

Description

Electrically connect shrapnel, connectors and electronic equipment

technical field

The invention relates to the technical field of connectors, in particular to an electrical connection elastic piece, a connector and electronic equipment.

Background technique

With the advancement of science and technology and the development of the economy, electronic devices such as mobile phones and tablet computers have become indispensable daily necessities for people. Great convenience enriches people's life, and shrapnel is one of the essential equipment in electronic equipment.

Several shrapnels are provided on each connector in the electronic device, and the shrapnels are used to connect lines or devices on both sides of the shrapnel. With the miniaturization trend of electronic equipment in recent years, the internal connectors of the equipment are also miniaturized. The existing shrapnel application is to set the shrapnel connector on one side of the substrate, and the other substrate is provided with a contact surface in contact with the shrapnel to achieve crimping. purpose of the connection.

The application and contact methods of the existing shrapnel structure mainly have the following problems:

a. The large area occupied by the existing shrapnel is not conducive to the development trend of the miniaturization design of electronic equipment;

b. The contact displacement deformation of the existing shrapnel is an oblique displacement, and the contact part will be obliquely displaced as the compression stroke increases, and there is a hidden danger of unstable contact.

Contents of the invention

An object of the present invention is to provide an electrical connection spring to reduce board area and improve contact stability.

An electrical connection elastic piece, comprising a flat plate-shaped welding portion, a first elastic portion and a second elastic portion respectively extending upward from the opposite sides of the welding portion along the height direction of the welding portion, the first Both the first elastic part and the second elastic part are bent and formed multiple times, the end of the first elastic part away from the welding part extends out to a contact part, the contact part is parallel to the welding part, and the first elastic part The end of the two elastic parts far away from the welding part abuts against the bottom surface of the contact part to support the contact part, and the first elastic part and the second elastic part are on the plane where the welding part is The projection falls on the welding part, the first elastic part and the second elastic part are double U-shaped racetracks, and the contact part moves back and forth along the height direction of the welding part when pressed.

According to the electrical connection elastic piece proposed by the present invention, the double arm support structure is realized through the cooperation of the first elastic part and the second elastic part, the second elastic part supports the contact part, and the electrical connection is realized through the contact part and the welding part. The projection of the first elastic part and the second elastic part on the plane where the welding part is located falls on the welding part, so that the shrapnel is small in size and occupies a small board area, which is conducive to the miniaturization of electronic equipment. When the contact part is under pressure, it will follow the welding The height direction of the part moves back and forth, so that the contact part does not have tilt displacement, and the contact stability is high; the double arm support structure makes the compression displacement tilt small, the current transmission path is more, and the loss is small, so the compression contact stability is greatly improved. In addition, the small size of the product makes the current transmission path short, and the double arm can shunt the current, so it can realize large current transmission and wider application.

In addition, according to the electrical connection spring provided by the present invention, it may also have the following additional technical features:

Further, the first elastic part includes a first moment arm, a second moment arm, a third moment arm and a fourth moment arm connected in sequence, and one side of the welding part extends upward along the height direction of the welding part Out of the first moment arm, the first moment arm is vertically connected to the second moment arm, and the end of the second moment arm away from the first moment arm extends upward along the height direction of the welding part The third moment arm, the third moment arm is vertically connected to the second moment arm, and the end of the third moment arm away from the second moment arm is bent upwards along the height direction of the welding part The fourth moment arm is extended, the fourth moment arm is parallel to the first moment arm, and the end of the fourth moment arm extends out of the contact portion.

Further, the second elastic part includes a fifth moment arm, a sixth moment arm, a seventh moment arm and an eighth moment arm connected in sequence, and the other side of the welding part is upward along the height direction of the welding part Extending the fifth moment arm, the fifth moment arm and the sixth moment arm are vertically connected, and the end of the sixth moment arm away from the fifth moment arm extends upward along the height direction of the welding part The seventh moment arm is vertically connected to the sixth moment arm, and the end of the seventh moment arm away from the sixth moment arm is bent along the height direction of the welding part The eighth force arm extends upwards, the eighth force arm is parallel to the fifth force arm, and the end of the eighth force arm abuts against the bottom surface of the contact portion.

Further, the first elastic part and the second elastic part are arranged symmetrically around the welding part.

Further, a supporting platform is provided at the end of the eighth force arm, and the supporting platform abuts against the bottom surface of the contact portion.

Further, the side of the contact portion is provided with a scoop-shaped hem bent toward the welding portion.

Further, a contact bump is provided on a side of the contact portion facing away from the welding portion.

Further, a tin groove is provided on the side of the soldering portion facing away from the contact portion.

Another object of the present invention is to provide a connector using the above-mentioned electrical connection spring.

Another object of the present invention is to provide an electronic device using the above-mentioned connector.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

Fig. 1 is a schematic structural view of the electrical connection elastic piece in the unbent and formed state of the first embodiment of the present invention;

Fig. 2 is a schematic structural view of the electrically connected elastic sheet after being partially bent and formed according to the first embodiment of the present invention;

3 is a schematic diagram of the three-dimensional structure of the electrical connection elastic piece in the first viewing angle according to the first embodiment of the present invention;

4 is a schematic diagram of the three-dimensional structure of the electrical connection elastic piece in the second viewing angle according to the first embodiment of the present invention;

FIG. 5 is a schematic cross-sectional structure diagram of the electrical connection elastic sheet according to the first embodiment of the present invention.

Detailed ways

In order to make the purpose, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "upper," "lower," and similar expressions are for descriptive purposes only and do not indicate or imply the device or Elements must have certain orientations, be constructed and operate in certain orientations, and therefore should not be construed as limitations on the invention.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to Fig. 1 to Fig. 4, the electrical connection elastic piece that the first embodiment of the present invention proposes, comprises the soldering part 10 that is flat plate, and the contact area of soldering part 10 should be larger, in order to guarantee to have good connection with other electronic components welding effect. Preferably, the welding portion 10 is in the shape of a rectangular plate.

A first elastic portion 20 and a second elastic portion 30 respectively extend upward along the height direction of the welding portion 10 on opposite sides of the welding portion 10 , and the first elastic portion 20 and the second elastic portion The parts 30 have been bent and formed multiple times. Wherein, both the first elastic portion 20 and the second elastic portion 30 are in the shape of a double U-shaped track. Preferably, the first elastic part 20 and the second elastic part 30 are arranged symmetrically around the welding part 10 .

The end of the first elastic part 20 away from the welding part 10 extends a contact part 40 , the contact part 40 is parallel to the welding part 10 , and the end of the second elastic part 30 away from the welding part 10 abuts against lean against the bottom surface of the contact portion 40 to support the contact portion 40 . The first elastic part 20 and the second elastic part 30 cooperate to form a double moment arm support structure.

The projections of the first elastic portion 20 and the second elastic portion 30 on the plane where the welding portion 10 is located fall on the welding portion 10 , and the contact portion 40 moves along the welding portion 10 when it is pressed. The height direction moves back and forth.

The first elastic part 20 includes a first moment arm 21, a second moment arm 22, a third moment arm 23 and a fourth moment arm 24 connected in sequence, and one side of the welding part 10 is along the side of the welding part 10. The height direction extends upwards from the first moment arm 21, and the first moment arm 21 and the second moment arm 22 are vertically connected, where the vertical connection means that the first moment arm 21 It is vertically connected with the second moment arm 22. The end of the second moment arm 22 far away from the first moment arm 21 extends upwardly from the third moment arm 23 along the height direction of the welding part 10 , the third moment arm 23 is higher than the second moment arm 22 , The third moment arm 23 is vertically connected to the second moment arm 22 (also refers to looking from the direction of the welding part 10), and the end of the third moment arm 23 away from the second moment arm 22 is bent The fourth moment arm 24 extends upward along the height direction of the welding part 10, the fourth moment arm 24 is higher than the third moment arm 23, and the fourth moment arm 24 is parallel to the first moment arm 21 , the end of the fourth moment arm 24 extends out of the contact portion 40 , specifically, the contact portion 40 may be formed by bending a flat plate. Through the first moment arm 21, the second moment arm 22, the third moment arm 23 and the fourth moment arm 24 of the above-mentioned structure, the first elastic portion 20 of double U-shaped track shape is formed when viewed from the plan view direction of the contact portion 40. .

The second elastic part 30 includes a fifth moment arm 31 , a sixth moment arm 32 , a seventh moment arm 33 and an eighth moment arm 34 connected in sequence, and the other side of the welding part 10 is along the The height direction extends upwards from the fifth force arm 31, the fifth force arm 31 and the sixth force arm 32 are vertically connected (also referring to the viewing direction from the welding part 10), the sixth force The end of the arm 32 away from the fifth force arm 31 extends upwards from the seventh force arm 33 along the height direction of the welding part 10, the seventh force arm 33 is higher than the sixth force arm 32, and the seventh force arm 33 is higher than the sixth force arm 32. The arm 33 is vertically connected to the sixth arm 32 (also referring to the viewing direction from the welded portion 10), and the seventh arm 33 is bent at the end far away from the sixth arm 32 and then along the welding line. The height direction of the part 10 extends upwards from the eighth moment arm 34, the eighth moment arm 34 is higher than the seventh moment arm 33, the eighth moment arm 34 is parallel to the fifth moment arm 31, and the eighth moment arm 34 is parallel to the fifth moment arm 31. The end of the force arm 34 abuts against the bottom surface of the contact portion 40 . Through the fifth moment arm 31, the sixth moment arm 32, the seventh moment arm 33, and the eighth moment arm 34 of the above-mentioned structure, the second elastic portion 30 in the shape of a double U-shaped track is formed when viewed from the plan view direction of the contact portion 40. .

Preferably, the end of the eighth moment arm 34 is provided with a support platform 35, and the support platform 35 abuts against the bottom surface of the contact portion 40, and the support platform 35 can increase the support area and improve the stability.

In this embodiment, a contact bump 41 is provided on the side of the contact portion 40 facing away from the welding portion 10 to ensure reliable contact. Specifically, the contact protrusion 41 may be disposed at a middle position of the contact portion 40 . The contact protrusion 41 may be a circular structure. The contact protrusion 41 can be realized by punching and stretching.

The side of the contact part 40 is provided with a scoop-shaped wrapping 42 bent towards the welding part 10, the purpose of which is to ensure that the support platform 35 abutting against the contact part 40 is always on the bottom surface of the contact part 40 in the working state. It is not easy to disengage from the contact portion 40, providing reliable supporting force.

The side of the soldering portion 10 facing away from the contact portion 40 is provided with a tin groove 11 . Specifically, the tin-eating tank 11 is in the shape of a cross. The tin tank 11 is used to disperse the solder paste to solve the high-temperature "siphon" phenomenon, and flow excess solder paste into the tin tank 11, thereby improving soldering reliability. The tin groove 11 can be realized by punching and stretching.

During specific implementation, the electrical connection elastic piece can be an integral structure, and the material can be a conductive metal material. When making the above-mentioned electrical connection elastic piece, the welding part 10 and the first elastic part 20 can be formed by stamping and blanking first. , the second elastic part 30, and the contact part 40, and then the finished product is obtained through a stamping and bending process.

According to the electrical connection elastic piece proposed in this embodiment, the double arm support structure is realized through the cooperation of the first elastic part 20 and the second elastic part 30. The second elastic part 30 supports the contact part 40, and the contact part 40 and the welding part 10 to achieve electrical connection, the projection of the first elastic part 20 and the second elastic part 30 on the plane where the welding part 10 is located falls on the welding part 10, so that the shrapnel is small in size and occupies a small board area, which is conducive to the miniaturization of electronic equipment , when the contact part 40 is under pressure, it will move back and forth along the height direction of the welding part 10, so that the contact part 40 will not be tilted and displaced, and the contact stability is high; the double-arm support structure makes the compression displacement tilt small and the current transmission path is more , the loss is small, so the compression contact stability is greatly improved. In addition, the small size of the product makes the current transmission path short, and the double arm can shunt the current, so it can realize large current transmission and wider application.

The second embodiment of the present invention provides a connector, the connector at least includes the electrical connection elastic piece of the first embodiment, and the connector may include a plurality of the electrical connection elastic pieces of the first embodiment.

The third embodiment of the present invention also provides an electronic device, the electronic device at least includes the above connector, and the electronic device may include a plurality of the above connectors.

It should be noted that the electronic device may be a mobile phone, a tablet computer, a desktop computer, a PAD, an air conditioner, a refrigerator, and the like.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (10)

1. An electrical connection elastic piece, characterized in that it includes a flat plate-shaped welding part, and the two sides of the welding part oppositely extend upwards along the height direction of the welding part to respectively extend a first elastic part and a second elastic part. The elastic part, the first elastic part and the second elastic part are bent and formed multiple times, the end of the first elastic part away from the welding part extends a contact part, and the contact part is connected to the welding part parts parallel to each other, the end of the second elastic part away from the welding part abuts against the bottom surface of the contact part to support the contact part, and the first elastic part and the second elastic part are in the The projection of the plane where the welding part is located falls on the welding part, the first elastic part and the second elastic part are in the shape of a double U-shaped track, and the contact part moves along the welding part when it is pressed. The height direction moves back and forth. 2. The electrical connection elastic piece according to claim 1, characterized in that, the first elastic part comprises a first moment arm, a second moment arm, a third moment arm and a fourth moment arm connected in sequence, the One side of the welding part extends upwards from the first moment arm along the height direction of the welding part, the first moment arm and the second moment arm are vertically connected, and the second moment arm is far away from the first moment arm. One end of the moment arm extends upwardly from the third moment arm along the height direction of the welding part, the third moment arm is vertically connected to the second moment arm, and the third moment arm is far away from the second moment arm After one end of the arm is bent, the fourth moment arm extends upward along the height direction of the welding part, the fourth moment arm is parallel to the first moment arm, and the end of the fourth moment arm extends out of the fourth moment arm. the contact part. 3. The electrical connection elastic piece according to claim 2, characterized in that, the second elastic part comprises a fifth moment arm, a sixth moment arm, a seventh moment arm and an eighth moment arm connected in sequence, and the The other side of the welded portion extends upwardly from the fifth moment arm along the height direction of the welded portion, the fifth moment arm is vertically connected to the sixth moment arm, and the sixth moment arm is far away from the first moment arm. One end of the fifth force arm extends upwards from the seventh force arm along the height direction of the welding part, the seventh force arm is vertically connected to the sixth force arm, and the seventh force arm is far away from the sixth force arm. After one end of the moment arm is bent, the eighth moment arm is extended upward along the height direction of the welding part, the eighth moment arm is parallel to the fifth moment arm, and the end of the eighth moment arm abuts against on the bottom surface of the contact portion. 4 . The electrical connection spring according to claim 1 , wherein the first elastic portion and the second elastic portion are arranged symmetrically around the welding portion. 5 . The electrical connection spring according to claim 3 , wherein a supporting platform is provided at the end of the eighth force arm, and the supporting platform abuts against the bottom surface of the contact portion. 6 . 6 . The electrical connection elastic piece according to claim 1 , wherein the side of the contact portion is provided with a scoop-shaped wrapping bent toward the welding portion. 7 . 7 . The electrical connection elastic piece according to claim 1 , wherein a contact bump is provided on a side of the contact portion facing away from the welding portion. 8 . 8 . The electrical connection elastic sheet according to claim 1 , wherein a tin groove is provided on a side of the welding portion facing away from the contact portion. 9 . 9. A connector, characterized in that it comprises the electrical connection elastic sheet according to any one of claims 1 to 8. 10. An electronic device, comprising the connector according to claim 9.