A spring sheet and a spring sheet assembly

Abstract

A kind of sheet metal and sheet metal assembly, the sheet metal includes support section, the welding leg formed by bending down from the first end of the support section and the contact part formed by extending from the second end of the support section, the support section includes support bottom, the fixed end formed by extending horizontally after extending obliquely upward from the first end of the support bottom in longitudinal direction and the elastic end formed by extending horizontally after extending obliquely upward from the second end of the support bottom in longitudinal direction, the welding leg is formed by bending down from the fixed end, the contact part is formed by extending from the elastic end.The sheet metal and sheet metal assembly of the application are good in elasticity, and high in welding stability.

Description

Technical Field

[0001] This utility model relates to the field of electrical connectors, and more particularly to a spring and spring assembly. Background Technology

[0002] Patent CN223462448U discloses a contact spring, which includes a fixing part, a bent part connected to the fixing part, and an elastic part connected to the bent part. The bent part is housed in a notch and has a sunken U-shaped structure. The elastic part is provided with a first bent section and a second bent section connected to the first bent section. The elastic force of the contact spring is mainly provided by the sunken U-shaped structure. However, the U-shaped structure needs to reach a certain size to provide sufficient elastic force. Furthermore, when in longitudinal contact with an object, the welding firmness of the fixing part is required to be high. Utility Model Content

[0003] Based on this, the present invention provides a spring sheet and spring sheet assembly that are firmly welded and have good elasticity.

[0004] To solve the above-mentioned technical problems, this application provides a spring sheet, including a support section, a weld leg formed by bending downward from a first end of the support section, and a contact portion extending from a second end of the support section. The support section includes a support bottom, a fixed end formed by extending obliquely upward from a first longitudinal end of the support bottom and then horizontally, and an elastic end formed by extending obliquely upward from a second longitudinal end of the support bottom and then horizontally. The weld leg is formed by bending downward from the fixed end, and the contact portion extends from the elastic end.

[0005] Preferably, the spring sheet further includes an extension arm formed by bending downward from the elastic end, the contact portion being formed by bending from the end of the extension arm, and the extension arm and the contact portion being stamped to form an L-shaped rib.

[0006] Preferably, the two ends of the contact portion are folded inward to form a limiting fold, and both the fixed end and the elastic end include an inclined section extending obliquely upward from both ends of the bottom of the support and a horizontal section formed by bending horizontally from the top of the inclined section.

[0007] To address the aforementioned technical problems, this application also provides a spring assembly, including a printed circuit board and the aforementioned spring, wherein the spring is soldered onto the printed circuit board.

[0008] Preferably, the printed circuit board has solder holes, a soldering surface and a notch that penetrates the printed circuit board in sequence in the longitudinal direction. The solder feet are inserted into the solder holes and soldered to fix them. The bottom of the support is soldered to the soldering surface. The contact part passes through the notch and protrudes to the other side of the printed circuit board.

[0009] Preferably, the spring sheet further includes an extension arm formed by bending downward from the elastic end, and the contact portion is formed by bending and extending from the end of the extension arm.

[0010] Preferably, the extension arm passes through the notch, the contact portion is horizontally bent from the end of the extension arm and formed on the other side of the printed circuit board, and a connecting object contacts the contact portion from top to bottom.

[0011] Preferably, the extension arm extends into the notch but does not cross the other side of the notch, the contact portion is formed by bending upward from the end of the extension arm, and the contact portion extends at least partially to one side of the printed circuit board where the support section is located.

[0012] Preferably, the printed circuit board has solder holes, a soldering surface and a notch penetrating the printed circuit board in sequence in the longitudinal direction. The solder feet are inserted into the solder holes and soldered and fixed. The bottom of the support is soldered to the soldering surface. The contact portion extends obliquely upward from the elastic end above the notch.

[0013] Preferably, the notch provides deformation space for the elastic deformation of the contact portion.

[0014] In addition to the solder feet for insertion, the spring and spring assembly of this application also have an M-shaped support section. The bottom of the support section is directly soldered to the printed circuit board to form a deformation fulcrum. The elastic end of the support bottom extends to form a contact part, and the fixed end of the support section forms a solder foot for direct insertion and soldering to the printed circuit board. Thus, in the vertical contact state, the support bottom provides an elastic fulcrum, and the solder foot provides a stable holding force, so that the spring and spring assembly form a stable and reliable soldering stability. Attached Figure Description

[0015] Figure 1 This is a three-dimensional assembly diagram of the spring assembly according to Embodiment 1 of this application.

[0016] Figure 2 This is an exploded perspective view of the spring assembly in Embodiment 1 of this application.

[0017] Figure 3 For along Figure 1 The cross-sectional view shown by the dashed line AA.

[0018] Figure 4 This is a cross-sectional view of the spring assembly of Embodiment 2 of this application.

[0019] Figure 5 This is a cross-sectional view of the spring assembly of Embodiment 3 of this application.

[0020] Among them: Printed circuit board-10; Solder hole-11; Solder surface-12; Notch-13; Spring piece-20; Support section-21; Support bottom-211; Fixed end-212; Elastic end-213; Inclined section-214; Horizontal section-215; Solder foot-22; Extension arm-23; Contact part-24; Limiting fold-up-25; Protruding rib-26. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0022] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0024] This application is based on Figure 1 The X direction is the horizontal direction, the Y direction is the vertical direction, and the Z direction is the perpendicular direction.

[0025] Example 1 Please see Figures 1 to 3 As shown, the spring assembly of Embodiment 1 of this application includes a printed circuit board 10 and a spring 20 soldered and fixed on the printed circuit board 10.

[0026] The printed circuit board 10 includes solder holes 11, a solder surface 12, and a notch 13 formed by cutting away the printed circuit board 10, arranged sequentially along the longitudinal direction. The solder surface 12 is located between the solder holes 11 and the notch 13. The solder surface 12 is for surface mount soldering, that is, forming solderable gold fingers on the surface of the printed circuit board 10; the solder holes 11 are insertion-type soldering structures, whereby the object to be soldered is inserted into the solder holes 11 and then soldered within the solder holes 11.

[0027] The spring piece 20 includes a support section 21, a welding leg 22 formed by bending downward from the first end of the support section 21, an extension arm 23 extending from the other end of the support section 21, and a contact portion 24 extending from the extension arm 23.

[0028] The support segment 21 includes a support bottom 211 attached to the soldering surface 12 of the printed circuit board 10, a fixed end 212 extending obliquely upward from both sides of the support bottom 211, and an elastic end 213. The support segment 21 is generally V-shaped. Both the fixed end 212 and the elastic end 213 include an inclined segment 214 extending obliquely upward from the support bottom 211 and a horizontal segment 215 formed by horizontal bending from the inclined segment 214. The bottom surface of the support bottom 211 has a planar structure of a certain width to facilitate soldering onto the soldering surface 12 of the printed circuit board 10. The solder foot 22 extends downward from the horizontal segment 215 of the fixed end 212 of the support segment 21 and is inserted into the solder hole 11 of the printed circuit board 10 for soldering and fixing. The extension arm 23 extends downward from the horizontal segment 215 of the elastic end 213 and passes through the notch 13 of the printed circuit board 10 from top to bottom to enter the other side of the printed circuit board 10. The contact portion 24 is formed by extending from the horizontally bent extension arm 23. The longitudinal edge of the contact portion 24 is folded inward to form a limiting fold 25. The extension arm 23 and the contact portion 24 are also stamped with protruding ribs 26, which are L-shaped and extend from the extension arm 23 to the contact portion 24.

[0029] The spring clip 20 is welded and fixed to the printed circuit board 10, wherein the solder foot 22 is inserted into the solder hole 11 of the printed circuit board 10 and welded and fixed, and the support bottom 211 is attached to the solder surface 12 of the printed circuit board 10 and welded and fixed. The solder foot 22 and the support bottom 211 are both welded and fixed to the first side surface of the printed circuit board 10, and the contact portion 24 passes through the notch 13 through the extension arm 23 and enters the second side surface of the printed circuit board 10.

[0030] The object to be connected (not shown) passes vertically downward through the notch 13, contacts and presses the contact portion 24, and establishes an electrical connection. The elastic force is provided by the elastic end 213 of the support bottom 211 and the extension arm 23. The extension arm 23 is close to the inner wall of the notch 13 of the printed circuit board 10. In extreme cases, the extension arm 23 will contact the inner wall of the notch 13 and the elastic force will be provided by the extension arm 23 again.

[0031] Example 2 Please continue reading. Figure 4As shown, Embodiment 2 of the spring assembly of this application will be described in detail. Compared to Embodiment 1, where the extension arm 23 extends downward through the notch 13 into the other side of the printed circuit board 10, and the contact portion 24 is formed by bending and extending horizontally from the end of the extension arm 23, in Embodiment 2, the extension arm 23 bends downward from the elastic end 213 of the support section 21 and extends into the notch 13, but does not exceed the other side surface of the printed circuit board 10. Subsequently, the contact portion 24 extends obliquely upward from the extension arm 23 into the same side of the soldering surface 12 of the printed circuit board 10 within the notch 13. At this time, when the connecting object contacts the contact portion 24 downward, the contact portion 24 deforms, and the end of the extension arm 23, when deformed, abuts against the inner wall surface of the notch 13, providing another deformation fulcrum.

[0032] Example 3 Please continue reading. Figure 5 As shown, Embodiment 3 of the spring contact assembly of this application will be described in detail. Compared with Embodiment 1, the extension arm 23 extends downward through the notch 13 and enters the other side of the printed circuit board 10, while the contact portion 24 is formed by bending and extending horizontally from the end of the extension arm 23. In Embodiment 3, the extension arm 23 is formed by extending horizontally or obliquely from the elastic end 213 of the support section 21, while the contact portion 24 extends obliquely upward or horizontally from the extension arm 23 and is formed above the notch 13. That is, in Embodiment 3, the function of the notch 13 has changed or can be eliminated, and the contact portion 24 and the support section 21 are on the same side of the printed circuit board. Furthermore, in this third embodiment, the extension arm 23 may be omitted, meaning the contact portion 24 is integrally fused with the extension arm 23. The contact portion 24 extends obliquely upward or horizontally from the elastic end 213 of the support section 21. When the object being connected presses against the contact portion 24 downward, the elastic force of the contact portion 24 originates from the support of the support bottom 211, while the weld foot 22 provides a stable holding force. The notch 13 also provides sufficient deformation space for the contact portion 24.

[0033] In addition to the solder feet 22 for insertion, the spring and spring assembly of this application also have an M-shaped support section 21. The support bottom 211 of the support section 21 is directly soldered to the printed circuit board 10 to form a deformation fulcrum. The elastic end 213 of the support bottom 211 extends to form a contact portion 24, and the fixed end 212 of the support section 21 forms a solder foot 22 for direct insertion and soldering to the printed circuit board 10. Thus, in the vertical contact state, the support bottom 211 provides an elastic fulcrum, and the solder foot 22 provides a stable holding force, so that the spring and spring assembly form a stable and reliable soldering stability.

[0034] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above embodiments only illustrate preferred implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A spring clip, characterized in that, The device includes a support section, a weld leg formed by bending downward from a first end of the support section, and a contact portion extending from a second end of the support section. The support section includes a support bottom, a fixed end formed by extending obliquely upward from a first longitudinal end of the support bottom and then horizontally, and an elastic end formed by extending obliquely upward from a second longitudinal end of the support bottom and then horizontally. The weld leg is formed by bending downward from the fixed end, and the contact portion extends from the elastic end.

2. The spring clip as described in claim 1, characterized in that, The spring sheet also includes an extension arm formed by bending downward from the elastic end, and the contact portion is formed by bending and extending from the end of the extension arm. The extension arm and the contact portion are stamped to form an L-shaped rib.

3. The spring clip as described in claim 2, characterized in that, The two sides of the end of the contact portion are folded inward to form a limit fold. Both the fixed end and the elastic end include an inclined section that extends obliquely upward from both ends of the bottom of the support and a horizontal section that is bent horizontally from the top of the inclined section.

4. A spring-loaded assembly, characterized in that, It includes a printed circuit board and a spring as described in claim 1, wherein the spring is soldered onto the printed circuit board.

5. The spring assembly as described in claim 4, characterized in that, The printed circuit board has solder holes, a soldering surface, and a notch that penetrates the printed circuit board in sequence in the longitudinal direction. The solder feet are inserted into the solder holes and soldered to fix them. The bottom of the support is soldered to the soldering surface. The contact part passes through the notch and is exposed on the other side of the printed circuit board.

6. The spring assembly as described in claim 5, characterized in that, The spring sheet also includes an extension arm formed by bending downward from the elastic end, and the contact portion is formed by bending and extending from the end of the extension arm.

7. The spring assembly as described in claim 6, characterized in that, The extension arm passes through the notch, and the contact portion is formed on the other side of the printed circuit board by a horizontal bend from the end of the extension arm. A connecting object contacts the contact portion from top to bottom.

8. The spring assembly as described in claim 6, characterized in that, The extension arm extends into the notch but does not cross the other side of the notch. The contact portion is formed by bending and extending obliquely upward from the end of the extension arm. The contact portion extends at least partially to one side of the printed circuit board where the support section is located.

9. The spring assembly as described in claim 4, characterized in that, The printed circuit board has solder holes, a soldering surface and a notch that penetrates the printed circuit board in sequence in the longitudinal direction. The solder feet are inserted into the solder holes and soldered to fix them. The bottom of the support is soldered to the soldering surface. The contact part extends obliquely upward from the elastic end above the notch.

10. The spring assembly as claimed in claim 9, characterized in that, The notch provides deformation space for the elastic deformation of the contact portion.

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