Electrical connection spring, connector and electronic equipment

Abstract

The present invention discloses an electrically connected spring piece, a connector and an electronic device, wherein the electrically connected spring piece comprises a welding part, wherein the two ends of the welding part along the first direction respectively extend a first elastic part and a second elastic part vertically upward, wherein the two ends of the welding part along the second direction respectively extend a first protection part and a second protection part vertically upward, wherein the first elastic part extends a first clamping part away from the end of the welding part, wherein the first clamping part extends a first clamping hook, wherein the second elastic part extends a second clamping part away from the end of the welding part, wherein the second clamping part is connected to the contact part, wherein the second clamping part extends a second clamping hook, wherein the first clamping part, the second clamping part, the first clamping hook and the second clamping hook form a bite structure to support the contact part; when the contact part is under pressure, the contact part moves back and forth in the receiving space along the height direction of the contact part together with the first elastic part and the second elastic part. The present invention can reduce the occupied board area, improve the contact stability and reduce the cost.

Description

Technical Field

[0001] The present invention relates to the technical field of connectors, and in particular to an electrical connection spring, a connector and an electronic device. Background Art

[0002] With the advancement of science and technology and the development of the economy, electronic devices such as mobile phones and tablets have become indispensable daily necessities for people. These digital electronic products have been widely integrated into people's daily lives, providing great convenience for people's lives and work and enriching people's lives. Shrapnel is one of the indispensable devices in electronic devices.

[0003] In electronic devices, there are several springs used to connect circuits or devices. With the trend of miniaturization of electronic devices in recent years, the internal connectors of devices are also miniaturized. The existing structure is to set springs or POGO PINs on one side of the substrate, and set a contact surface that contacts the springs or POGO PINs on the other substrate to achieve the purpose of crimping connection.

[0004] The above existing structure mainly has the following problems:

[0005] a. The existing shrapnel occupies a large area of ​​the board, which is not conducive to the development trend of miniaturization design of electronic equipment;

[0006] b. The existing spring contact displacement deformation is an inclined displacement, and the contact portion will be inclined and displaced as the compression stroke increases, which poses a risk of unstable contact.

[0007] c. Both the POGO PIN contact head and the sleeve are machined parts, which have low production efficiency and high processing cost. Summary of the invention

[0008] An object of the present invention is to provide an electrical connection spring to reduce board area, improve contact stability, and reduce costs.

[0009] An electrically connecting spring sheet, comprising a flat-plate-shaped welding portion, wherein two ends of the welding portion along a first direction respectively extend vertically upward to form a first elastic portion and a second elastic portion, and two ends of the welding portion along a second direction respectively extend vertically upward to form a first protecting portion and a second protecting portion, wherein the first direction is perpendicular to the second direction, and the first elastic portion and the second elastic portion are located in a receiving space surrounded by the first protecting portion and the second protecting portion;

[0010] A first clamping portion extends from one end of the first elastic portion away from the welding portion, a first clamping groove is provided at one end of the first clamping portion, a first T-shaped clamping hook is vertically extended upward from the other end of the first clamping portion, a second clamping portion is extended from one end of the second elastic portion away from the welding portion, the second clamping portion is connected to the contact portion, the second clamping portion is parallel to the first clamping portion, and the second clamping portion abuts against the top of the first clamping portion, a second clamping groove is provided at one end of the second clamping portion, a second T-shaped clamping hook is vertically extended downward from the other end of the second clamping portion; the first clamping hook is clamped in the second clamping groove, and the second clamping hook is clamped in the first clamping groove to support the contact portion; when the contact portion is under pressure, it moves back and forth in the receiving space and along the height direction of the contact portion together with the first elastic portion and the second elastic portion.

[0011] According to the electrical connection spring sheet proposed in the present invention, when the contact part is under pressure, it moves back and forth along the height direction of the contact part together with the first elastic part and the second elastic part in the receiving space surrounded by the first protective part and the second protective part, so that the spring sheet is small in size and occupies a small board area, which is conducive to the miniaturization of electronic equipment. Since the contact part moves vertically up and down, it is not easy to tilt and displace, and the contact stability is high. The electrical connection spring sheet does not need to use machined parts, and can be realized by stamping, which has high production efficiency and lower production cost. In addition, the first clamping part, the second clamping part, the first clamping hook, and the second clamping hook together form a bite structure to support the contact part, which can ensure that the first elastic part and the second elastic part are always in a uniform stress state under the stress working state, and are difficult to disengage, providing a reliable and stable positive force.

[0012] In addition, the electrical connection spring provided by the present invention may also have the following additional technical features:

[0013] Furthermore, the welding part, the first elastic part, the second elastic part, the first clamping part, the second clamping part, the contact part, the first protecting part, the second protecting part, the first clamping hook and the second clamping hook located in the same horizontal plane are first formed by stamping and then the finished product is obtained by a stamping and bending process.

[0014] Furthermore, the first elastic part includes a first elastic arm, a second elastic arm, a third elastic arm, a fourth elastic arm, and a fifth elastic arm which are connected in sequence from bottom to top, the first elastic arm is connected to the welding part, the fifth elastic arm is connected to the first clamping part, and the connection between the first elastic arm and the second elastic arm, the connection between the second elastic arm and the third elastic arm, the connection between the third elastic arm and the fourth elastic arm, and the connection between the fourth elastic arm and the fifth elastic arm are all provided with U-shaped transition edges, the first elastic part is an L-shaped structure as a whole, and the first clamping part and the welding part are parallel.

[0015] Further, the second elastic portion includes a sixth elastic arm, a seventh elastic arm, an eighth elastic arm, a ninth elastic arm, and a tenth elastic arm which are sequentially connected from bottom to top, the sixth elastic arm is connected to the welding portion, the tenth elastic arm is respectively connected to the second clamping portion and the contact portion, and a U-shaped transition edge is provided at the connection between the sixth elastic arm and the seventh elastic arm, the connection between the seventh elastic arm and the eighth elastic arm, the connection between the eighth elastic arm and the ninth elastic arm, and the connection between the ninth elastic arm and the tenth elastic arm. The second elastic portion is an L-shaped structure as a whole, and the second elastic portion and the first elastic portion are symmetrically arranged with the welding portion as the center, and the second clamping portion and the welding portion are parallel.

[0016] Furthermore, the first protecting portion and the second protecting portion are both L-shaped structures, and the first protecting portion and the second protecting portion are symmetrically arranged with the welding portion as the center.

[0017] Furthermore, the bottom plate of the first protection part is provided with a first welding foot, the bottom plate of the second protection part is provided with a second welding foot, and the bottom surface of the first welding foot and the bottom surface of the second welding foot are both flush with the bottom surface of the welding part.

[0018] Furthermore, horizontal welding feet are provided at the corners of the welding portion.

[0019] Furthermore, a contact convex hump is provided on a side of the contact portion facing away from the welding portion.

[0020] Another object of the present invention is to provide a connector using the electrical connection spring.

[0021] Another object of the present invention is to provide an electronic device using the above connector.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 is a schematic diagram of the three-dimensional structure of the electrical connection spring of the first embodiment of the present invention at a first viewing angle;

[0025] Figure 2 is a schematic diagram of the three-dimensional structure of the electrical connection spring of the first embodiment of the present invention at a second viewing angle (the first protection portion and the second protection portion are in an unfolded state);

[0026] Figure 3 is a schematic diagram of the three-dimensional structure of the electrical connection spring of the first embodiment of the present invention at a third viewing angle (the contact portion is in an unfolded state);

[0027] Figure 4 1 is a schematic diagram of the manufacturing process of the electrical connection spring of the first embodiment of the present invention (just after stamping and blanking);

[0028] Figure 5 1 is a schematic diagram of the manufacturing process of the electrical connection spring of the first embodiment of the present invention (bending contact portion, first clamping hook and second clamping hook);

[0029] Figure 6 1 is a schematic diagram of the manufacturing process of the electrical connection spring sheet according to the first embodiment of the present invention (bending the first elastic portion and the second elastic portion in half);

[0030] Figure 7 1 is a schematic diagram of the manufacturing process of the electrical connection spring sheet according to the first embodiment of the present invention (the first elastic portion is bent as a whole);

[0031] Figure 8 1 is a schematic diagram of the manufacturing process of the electrical connection spring sheet according to the first embodiment of the present invention (the second elastic portion is bent as a whole);

[0032] Fig. 9 1 is a schematic diagram of the manufacturing process of the electrical connection spring of the first embodiment of the present invention (the first protection portion and the second protection portion are initially bent);

[0033] Fig.10 1 is a schematic diagram of the manufacturing process of the electrical connection spring of the first embodiment of the present invention (bending the first protection portion again). DETAILED DESCRIPTION

[0034] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] See also Figures 1 to 3 The electrical connection spring of the first embodiment of the present invention includes a flat plate-shaped welding portion 10, and the contact area of ​​the welding portion 10 should be relatively large to ensure a good welding effect with other electronic components. Preferably, the welding portion 10 is a rectangular flat plate.

[0038] The welding portion 10 has first and second elastic portions 20 and 30 extending vertically upward from both ends along the first direction, and first and second protective portions 40 and 50 extending vertically upward from both ends along the second direction, respectively. The first direction is perpendicular to the second direction, and the first and second elastic portions 20 and 30 are located in a receiving space surrounded by the first and second protective portions 40 and 50.

[0039] A first clamping portion 60 is extended from one end of the first elastic portion 20 away from the welding portion 10, a first clamping groove 61 is provided at one end of the first clamping portion 60, a first T-shaped clamping hook 62 is vertically extended upward from the other end of the first clamping portion 60, a second clamping portion 70 is extended from one end of the second elastic portion 30 away from the welding portion 10, the second clamping portion 70 is connected to the contact portion 80, the second clamping portion 70 is parallel to the first clamping portion 60, and the second clamping portion 70 is against the top of the first clamping portion 60, a second clamping groove 71 is provided at one end of the second clamping portion 70, a second T-shaped clamping hook 72 is vertically extended downward from the other end of the second clamping portion 70; the first clamping hook 62 is clamped in the second clamping groove 71, the second clamping hook 72 is clamped in the first clamping groove 61, the first clamping portion 60, the second clamping portion 70, the first clamping hook 62, and the second clamping hook 72 together form an interlocking structure to support the contact portion 80.

[0040] The contact portion 80 is in a U-shaped structure, with one end of the U-shaped structure connected to the second clamping portion 70 and the other end resting on the second clamping portion 70 , and the middle of the U-shaped structure is parallel to the welding portion 10 .

[0041] When the contact portion 80 is under pressure, it moves back and forth along the height direction of the contact portion 80 together with the first elastic portion 20 and the second elastic portion 30 in the receiving space surrounded by the first protection portion 40 and the second protection portion 50, that is, vertical movement is achieved. The first protection portion 40 and the second protection portion 50 limit and protect the vertical movement of the contact portion 80 and the first elastic portion 20 and the second elastic portion 30. Since the first clamping hook 62 is clamped in the second clamping groove 71, and the second clamping hook 72 is clamped in the first clamping groove 61, the first clamping portion 60, the second clamping portion 70, the first clamping hook 62, and the second clamping hook 72 together form a bite structure to support the contact portion 80, and can ensure that the first elastic portion 20 and the second elastic portion 30 are always in a uniform stress state under the stress working state, and are difficult to disengage, providing a reliable and stable positive force.

[0042] Specifically, the first elastic portion 20 includes a first elastic arm 21, a second elastic arm 22, a third elastic arm 23, a fourth elastic arm 24, and a fifth elastic arm 25 which are connected in sequence from bottom to top, the first elastic arm 21 is connected to the welding portion 10, the fifth elastic arm 25 is connected to the first clamping portion 60, and the connection between the first elastic arm 21 and the second elastic arm 22, the connection between the second elastic arm 22 and the third elastic arm 23, the connection between the third elastic arm 23 and the fourth elastic arm 24, and the connection between the fourth elastic arm 24 and the fifth elastic arm 25 are all provided with U-shaped transition edges, the first elastic portion 20 as a whole is L-shaped, and the first clamping portion 60 is parallel to the welding portion 10.

[0043] The second elastic portion 30 includes a sixth elastic arm 31, a seventh elastic arm 32, an eighth elastic arm 33, a ninth elastic arm 34, and a tenth elastic arm 35 which are sequentially connected from bottom to top, the sixth elastic arm 31 is connected to the welding portion 10, the tenth elastic arm 35 is respectively connected to the second clamping portion 70 and the contact portion 80, and a U-shaped transition edge is provided at the connection between the sixth elastic arm 31 and the seventh elastic arm 32, the connection between the seventh elastic arm 32 and the eighth elastic arm 33, the connection between the eighth elastic arm 33 and the ninth elastic arm 34, and the connection between the ninth elastic arm 34 and the tenth elastic arm 35. The second elastic portion 30 is an L-shaped structure as a whole, and the second elastic portion 30 and the first elastic portion 20 are symmetrically arranged with the welding portion 10 as the center, and the second clamping portion 70 is parallel to the welding portion 10.

[0044] The first protection portion 40 and the second protection portion 50 are both L-shaped structures, and the two form a rectangular receiving space. The first protection portion 40 and the second protection portion 50 are symmetrically arranged with the welding portion 10 as the center.

[0045] The bottom plate of the first protection part 40 is provided with a first welding leg 41, and the bottom plate of the second protection part 50 is provided with a second welding leg 51. The bottom surface of the first welding leg 41 and the bottom surface of the second welding leg 51 are both flush with the bottom surface of the welding part 10. The first welding leg 41 and the second welding leg 51 are provided to increase the strength of the entire product.

[0046] Horizontal welding feet 11 are provided at the corners of the welding portion 10 to increase welding strength.

[0047] The contact portion 80 (specifically the middle of the U-shaped structure) is provided with a contact convex hull 81 on one side facing away from the welding portion 10 to ensure reliable contact. The contact convex hull 81 can be specifically provided in the middle of the contact portion 80. The contact convex hull 81 can be a circular structure. The contact convex hull 81 can be realized by stamping and stretching.

[0048] Optionally, a tin-eating groove (not shown) is provided on the side of the soldering portion 10 facing away from the contact portion 80. The tin-eating groove is used to disperse the solder paste to solve the high-temperature "siphoning" phenomenon and flow the excess solder paste into the tin-eating groove, thereby improving the reliability of soldering. The tin-eating groove can be realized by stamping and stretching.

[0049] In a specific implementation, the electrical connection spring can be an integrated structure, and the material can be a conductive metal material. When manufacturing the above-mentioned electrical connection spring, the welding part 10, the first elastic part 20, the second elastic part 30, the first clamping part 60, the second clamping part 70, the contact part 80, the first protective part 40, the second protective part 50, the first clamping hook 62 and the second clamping hook 72 located in the same horizontal plane are first formed by stamping and blanking, and then the finished product is obtained by a stamping and bending process.

[0050] The manufacturing process of the above-mentioned electrical connection spring is as follows:

[0051] like Figure 4 As shown, the welding part 10, the first elastic part 20, the second elastic part 30, the first clamping part 60 (on which a first clamping groove 61 is provided), the second clamping part 70 (on which a second clamping groove 71 is provided), the contact part 80, the first protecting part 40, the second protecting part 50, the first clamping hook 62 and the second clamping hook 72 located in the same horizontal plane are first formed by stamping and then the finished product is obtained by a stamping and bending process.

[0052] like Figure 5 As shown, during stamping and bending, the contact portion 80, the first clamping hook 62 and the second clamping hook 72 can be bent first. Figure 6 As shown, the first elastic portion 20 and the second elastic portion 30 are bent in half, so that the first elastic portion 20 and the second elastic portion 30 are integrally formed into an L-shaped structure. Figure 7 and Figure 8 As shown, the first elastic part 20 and the second elastic part 30 are bent in a direction perpendicular to the welding part 10, and the contact part 80 is parallel to the welding part 10. The second clamping part is against the top of the first clamping part 60, the first clamping hook 62 is clamped in the second clamping groove 71, and the second clamping hook 72 is clamped in the first clamping groove 61 to support the contact part 80. Then as shown in FIG. Fig. 9 and Fig.10 As shown, the first protection portion 40 and the second protection portion 50 are bent respectively, so that the first protection portion 40 and the second protection portion 50 are perpendicular to the welding portion 10, and the first protection portion 40 and the second protection portion 50 surround a rectangular receiving space, and the first elastic portion 20 and the second elastic portion 30 are located in the receiving space, and finally the Figure 1 The structure shown.

[0053] According to the above-mentioned electrical connection spring sheet, when the contact part 80 is under pressure, it moves back and forth along the height direction of the contact part 80 together with the first elastic part 20 and the second elastic part 30 in the receiving space surrounded by the first protection part 40 and the second protection part 50, so that the spring sheet is small in size and occupies a small board area, which is conducive to the miniaturization of electronic equipment. Since the contact part 80 moves vertically up and down, it is not easy to tilt and displace, and the contact stability is high. The electrical connection spring sheet does not need to use machined parts, and can be realized by stamping, which has high production efficiency and lower production cost. The first clamping part 60, the second clamping part 70, the first clamping hook 62, and the second clamping hook 72 together form a bite structure to support the contact part 80, which can ensure that the first elastic part 20 and the second elastic part 30 are always in a uniform stress state under the stress working state, and are difficult to disengage, providing a reliable and stable positive force.

[0054] A second embodiment of the present invention provides a connector. The connector at least includes the electrical connection spring sheet of the first embodiment. The connector may include a plurality of the electrical connection spring sheets of the first embodiment.

[0055] The third embodiment of the present invention further provides an electronic device, which at least includes the above connector, and the electronic device may include a plurality of the above connectors.

[0056] 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, or the like.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An electrical connection spring, characterized in that: The welding part comprises a flat plate-shaped welding part, wherein two ends of the welding part along a first direction respectively extend vertically upward to form a first elastic part and a second elastic part, and two ends of the welding part along a second direction respectively extend vertically upward to form a first protection part and a second protection part, the first direction is perpendicular to the second direction, and the first elastic part and the second elastic part are located in a receiving space surrounded by the first protection part and the second protection part; A first clamping portion extends from one end of the first elastic portion away from the welding portion, a first clamping groove is provided at one end of the first clamping portion, a first T-shaped clamping hook is vertically extended upward from the other end of the first clamping portion, a second clamping portion is extended from one end of the second elastic portion away from the welding portion, the second clamping portion is connected to the contact portion, the second clamping portion is parallel to the first clamping portion, and the second clamping portion abuts against the top of the first clamping portion, a second clamping groove is provided at one end of the second clamping portion, a second T-shaped clamping hook is vertically extended downward from the other end of the second clamping portion; the first clamping hook is clamped in the second clamping groove, and the second clamping hook is clamped in the first clamping groove to support the contact portion; when the contact portion is under pressure, it moves back and forth in the receiving space and along the height direction of the contact portion together with the first elastic portion and the second elastic portion.

2. The electrical connection spring according to claim 1, characterized in that: The welding part, the first elastic part, the second elastic part, the first clamping part, the second clamping part, the contact part, the first protecting part, the second protecting part, the first clamping hook and the second clamping hook which are located in the same horizontal plane are firstly formed by stamping and then the finished product is obtained by a stamping and bending process.

3. The electrical connection spring according to claim 1, characterized in that: The first elastic part includes a first elastic arm, a second elastic arm, a third elastic arm, a fourth elastic arm, and a fifth elastic arm which are connected in sequence from bottom to top. The first elastic arm is connected to the welding part, and the fifth elastic arm is connected to the first clamping part. The connection between the first elastic arm and the second elastic arm, the connection between the second elastic arm and the third elastic arm, the connection between the third elastic arm and the fourth elastic arm, and the connection between the fourth elastic arm and the fifth elastic arm are all provided with U-shaped transition edges. The first elastic part is an L-shaped structure as a whole, and the first clamping part and the welding part are parallel.

4. The electrical connection spring according to claim 3, characterized in that: The second elastic portion includes a sixth elastic arm, a seventh elastic arm, an eighth elastic arm, a ninth elastic arm, and a tenth elastic arm which are sequentially connected from bottom to top, the sixth elastic arm is connected to the welding portion, the tenth elastic arm is respectively connected to the second clamping portion and the contact portion, a connection between the sixth elastic arm and the seventh elastic arm, a connection between the seventh elastic arm and the eighth elastic arm, a connection between the eighth elastic arm and the ninth elastic arm, and a connection between the ninth elastic arm and the tenth elastic arm are all provided with U-shaped transition edges, the second elastic portion is an L-shaped structure as a whole, and the second elastic portion and the first elastic portion are symmetrically arranged with the welding portion as the center, and the second clamping portion and the welding portion are parallel.

5. The electrical connection spring according to claim 1, characterized in that: The first protection portion and the second protection portion are both L-shaped structures, and the first protection portion and the second protection portion are symmetrically arranged with the welding portion as the center.

6. The electrical connection spring according to claim 5, characterized in that: The bottom plate of the first protection part is provided with a first welding foot, and the bottom plate of the second protection part is provided with a second welding foot. The bottom surface of the first welding foot and the bottom surface of the second welding foot are both flush with the bottom surface of the welding part.

7. The electrical connection spring according to claim 1, characterized in that: Horizontal welding feet are arranged at the corners of the welding part.

8. The electrical connection spring according to claim 1, characterized in that: A contact convex hump is provided on a side of the contact portion facing away from the welding portion.

9. A connector, characterized in that: It comprises the electrical connection spring piece as claimed in any one of claims 1 to 8.

10. An electronic device, characterized in that: Includes the connector described in claim 9.

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