Plug-in SMT patch charging elastic sheet

Abstract

The utility model discloses a plug-in SMT patch charging elastic sheet, which relates to the technical field of charging elastic sheets, and comprises a first support plate and a second support plate, a second elastic arm is arranged between the first support plate and the second support plate, one end of the second elastic arm is connected with a barb, and the other end of the second elastic arm is connected with a plug-in socket. The top end of the first supporting plate and the top end of the second supporting plate are both bent inwards to form limiting folded edges, and the limiting folded edges can be clamped with the barbs. According to the plug-in SMT patch charging elastic sheet, the symmetrical barbs are arranged at the end parts of the elastic arms, the top end of the supporting plate is bent inwards to form the limiting folded edge, and in a normal state, the barbs and the limiting folded edge are mutually clamped, so that even if a charger terminal extrudes the elastic arms downwards, the elastic arms are clamped by the barbs and the limiting folded edge to form a pull force, and the elastic arms can be clamped by the barbs and the limiting folded edge to form the plug-in SMT patch charging elastic sheet. And the pressed displacement of the elastic arm is not too large, so that the elastic arm can be protected, and the service life of the elastic arm is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of charging spring pieces, in particular to an inserted SMT patch charging spring piece. Background Technique

[0002] In the existing field of SMT patch charging spring pieces, the design of the charging spring piece is directly related to the charging efficiency, stability and safety of electronic devices. Traditional SMT patch charging spring pieces usually include a substrate, elastic arms and welding plates for connection, etc. However, in actual applications, these spring pieces often face a series of technical challenges, especially in the design of the elastic arms.

[0003] For the SMT patch charging spring pieces in the prior art, most of their elastic arms are designed to be in an inclined and unconstrained state. Although this design can theoretically provide a certain amount of elastic deformation to adapt to different insertion angles of charger terminals, there are significant problems in actual applications. When the charger terminal presses down on the elastic arm, due to the lack of sufficient restraint and stability of the elastic arm, its displacement is often too large and difficult to precisely control. This will not only lead to poor charging contact and affect the charging efficiency, but also may damage the elastic arm itself due to excessive stress concentration, thereby shortening the service life of the charging spring piece. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an inserted SMT patch charging spring piece, which solves the problems raised in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: an inserted SMT patch charging spring piece, including a first support plate and a second support plate, a second elastic arm is arranged between the first support plate and the second support plate, one end of the second elastic arm is connected with a barb, and the top ends of the first support plate and the second support plate are bent inward to form limiting folded edges, and the limiting folded edges can be engaged with the barb.

[0006] Furthermore, a bottom plate is commonly connected between the bottom ends of the first support plate and the second support plate, one end of the bottom plate is bent multiple times to form a first elastic arm, the bottom plate and the first elastic arm together form an "S" shape, and the bottom plate, the first elastic arm and the second elastic arm are an integral body.

[0007] Furthermore, the bottom surface of the bottom plate is set as a welding surface, and a plurality of solder sucking holes are penetrated through the inside of the bottom plate.

[0008] Furthermore, the second elastic arm is of a "U" - shaped structure, and a contact point is arranged at the most protruding part of the second elastic arm.

[0009] Furthermore, the second elastic arm and the limiting folded edge are inclined and perpendicular to each other, and the inclination angles of the second elastic arm and the limiting folded edge are both 45°.

[0010] Furthermore, one side of the first support plate is bent by 90° to form an adsorption plate, and one end of the adsorption plate facing away from the first support plate is fixed to the surface of the second support plate.

[0011] The utility model provides an inserted SMT patch charging spring. Compared with the prior art, it has the following beneficial effects:

[0012] The plug-in SMT patch charging spring is provided with symmetrical barbs at the end of the elastic arm, and a limiting fold is formed after the top end of the support plate is bent inwardly. Under normal conditions, the barbs and the limiting fold are engaged with each other. Even if the charger terminal presses the elastic arm downward, the tension formed by the engagement of the barbs and the limiting fold will not cause the compressed displacement of the elastic arm to be too large, thereby protecting the elastic arm and extending the service life of the elastic arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the front view of the utility model;

[0014] Figure 2 A three-dimensional diagram of the utility model from the back side;

[0015] Figure 3 It is a rear view of the utility model;

[0016] Figure 4 It is a half-section view of the utility model;

[0017] Figure 5 It is a schematic diagram of the utility model in a usage scenario.

[0018] In the figure: 1. first support plate; 2. second support plate; 3. bottom plate; 4. first elastic arm; 5. second elastic arm; 6. barb; 7. limit folding edge; 8. contact; 9. adsorption plate; 10. tinning hole; 11. PCB board; 12. charger terminal. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figures 1-5, the present utility model provides a technical solution: an insertable SMT patch charging spring piece, which is composed of a first support plate 1, a second support plate 2, a bottom plate 3, a first elastic arm 4 and a second elastic arm 5. Among them, after the first support plate 1, the second support plate 2 and the bottom plate 3 are subjected to stamping treatment, a bent shape is obtained. One end of the bottom plate 3 has a surplus material reserved. After this surplus material is subjected to stamping treatment again, a bent first elastic arm 4 is obtained. The bottom plate 3 and the first elastic arm 4 together form an "S" shape. After the first elastic arm 4 is stamped and bent, there is still surplus material at the end. After being bent again, a second elastic arm 5 in a "U" shape is formed. Therefore, the first support plate 1, the second support plate 2, the bottom plate 3, the first elastic arm 4 and the second elastic arm 5 are an integral whole obtained through multiple stampings. At one end of the second elastic arm 5 facing away from the first elastic arm 4, two symmetrical barbs 6 are formed by stamping. And the tops of the first support plate 1 and the second support plate 2 are both bent inward to form limiting flanges 7. The limiting flanges 7 can be engaged with the barbs 6. The second elastic arm 5 and the limiting flanges 7 are arranged in an inclined manner perpendicular to each other. The inclination angles of the second elastic arm 5 and the limiting flanges 7 are both 45°. The advantage of such a design is that when the external charger terminal 12 presses the second elastic arm 5 downward and contacts the contact point 8, the engagement of the barb 6 and the limiting flange 7 can give the second elastic arm 5 a pulling force. In this way, the displacement amount of the second elastic arm 5 pressed downward by the charger terminal 12 will not be very large, playing a constraining role, so that the overall structure of the entire charging spring piece is stable when the charger terminal 12 is inserted and removed;

[0021] In addition, in order to facilitate welding the entire charging spring piece to the PCB board 13, the bottom surface of the bottom plate 3 is set as the welding surface, and a plurality of solder sucking holes 10 are penetrated through the inside of the bottom plate 3. The solder sucking holes 10 can enhance the solder sucking effect. One side of the first support plate 1 is bent by 90° to form an adsorption plate 9. One end of the adsorption plate 9 facing away from the first support plate 1 is fixed on the surface of the second support plate 2. The setting of the adsorption plate 9, on the one hand, provides a better adsorption point for the manipulator when assembling the charging spring piece. On the other hand, the adsorption plate 9 is formed by bending. After bending, it can serve as a bridging structure between the first support plate 1 and the second support plate 2, making the correlation between the first support plate 1 and the second support plate 2 stronger, and the stability of the entire charging spring piece is higher.

Claims

1. An insertable SMT patch charging spring piece, comprising a first support plate (1) and a second support plate (2), characterized in that, A second elastic arm (5) is provided between the first support plate (1) and the second support plate (2); one end of the second elastic arm (5) is connected to a barb (6); the top ends of the first support plate (1) and the second support plate (2) are both bent inwards to form a limiting folded edge (7); and the limiting folded edge (7) can be engaged with the barb (6).

2. The insert type SMT patch charging spring piece according to claim 1, characterized in that A bottom plate (3) is commonly connected between the bottom ends of the first support plate (1) and the second support plate (2); one end of the bottom plate (3) is bent multiple times to form a first elastic arm (4); the bottom plate (3) and the first elastic arm (4) together form an "S" shape; the bottom plate (3), the first elastic arm (4) and the second elastic arm (5) are an integral whole.

3. The insert type SMT patch charging spring piece according to claim 2, characterized in that The bottom surface of the bottom plate (3) is provided as a welding surface, and a plurality of tinning holes (10) are provided through the inside of the bottom plate (3).

4. The insert type SMT patch charging spring piece according to claim 1, characterized in that The second elastic arm (5) is a "U"-shaped structure, and a contact point (8) is provided at the most protruding portion of the second elastic arm (5).

5. The plug-in SMT patch charging spring piece according to claim 1, characterized in that, The second elastic arm (5) and the limiting folded edge (7) are arranged in an inclined manner perpendicular to each other, and the inclination angles of the second elastic arm (5) and the limiting folded edge (7) are both 45°.

6. The insertable SMT patch charging spring piece according to claim 1, characterized in that, One side of the first support plate (1) is bent by 90° to form an adsorption plate (9), and one end of the adsorption plate (9) facing away from the first support plate (1) is fixed to the surface of the second support plate (2).

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