Open type limiting battery elastic sheet

Abstract

The utility model relates to an open type limit battery elastic sheet, which comprises a bottom plate, a support column, a clamp spring and a limit slide rail, the limit slide rail, the bottom plate, the support column and the clamp spring are sequentially connected, the middle of the limit slide rail is provided with a limit groove, the upper end of the limit slide rail is provided with a limit buckle which is bent inwards, and the clamp spring is provided with a limit sheet which is bent outwards. Limiting blocks are arranged at the outer ends of the limiting pieces, the limiting blocks extend into the limiting grooves of the limiting sliding rails, when the limiting blocks are located at the upper limiting points of the limiting sliding rails, the limiting buckles and the limiting pieces are attached to the buckles, and the limiting sliding rails are gradually obliquely arranged towards the outer side from bottom to top. According to the limiting type battery elastic sheet disclosed by the utility model, the clamping spring is guided to move up and down through the limiting sliding rail, so that the problems of over-pressure and over-rebound are avoided, the clamping spring is prevented from moving in the left-right direction, and the elastic sheet is prevented from deforming; the elastic sheet does not interfere with other parts in the downward pressing process, so that the utilization rate of the circuit board can be increased; local plating is adopted, the plating content is reduced, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of battery shrapnel, in particular to an open-type limited battery shrapnel. Background Art

[0002] With the rapid development of society, electronic tags are more and more widely used in supermarkets. When it comes to electronic tags, batteries are needed. However, when the battery is installed on the electronic tag, in order to ensure the reliability of the electrical connection, a stable battery shrapnel is required to cooperate with it. The battery shrapnel can not only ensure a close fit with the battery, but also ensure that a certain tolerance is completely absorbed when there is a certain tolerance during the assembly process.

[0003] The existing battery shrapnel is open-type, and there are no clear upper and lower limits for compression and rebound. It will not rebound after overpressure, resulting in poor contact in the later stage. There will also be too much rebound due to the lack of an upper limit, resulting in a tight fit during installation, which is not easy to install in the later stage. At the same time, the existing battery shrapnel will bulge forward during the downward pressure process, which will interfere with the compact circuit board design, resulting in a circuit board area that is too large and not easy to design small products. In addition, the shrapnel will shift left and right during the downward pressure process, which will cause the shrapnel to deform and affect the subsequent matching effect. Utility Model Content

[0004] The utility model aims to provide an open-type limiting battery spring to solve the problem that the battery spring in the prior art easily leads to poor contact in the later stage.

[0005] The utility model provides an open-type limiting battery spring, comprising a bottom plate, a support column, a clamping spring and a limiting slide rail, wherein the limiting slide rail, the bottom plate, the support column and the clamping spring are connected in sequence, a limiting groove is arranged in the middle of the limiting slide rail, a limiting buckle bent inwardly is arranged at the upper end of the limiting slide rail, a limiting piece bent outwardly is arranged at the clamping spring, a limiting block is arranged at the outer end of the limiting piece, and the limiting block extends into the limiting groove of the limiting slide rail to ensure that the clamping spring is not deformed in the left and right directions, and the limiting groove is longitudinally The limit block is arranged to move up and down in the limit groove, and the retaining spring is pressed down when the battery is installed to ensure an interference fit with the battery and no virtual connection. When the limit block is at the upper limit position of the limit slide rail, the limit buckle and the limit sheet are fitted with the buckle to prevent the limit block from escaping from the limit groove. The lower end of the limit groove is limited by the bottom plate to prevent the spring from being over-pressed. The upper limit and the lower limit are used to ensure that the retaining spring stops moving when it reaches the upper and lower limit positions when moving up and down. The limit slide rail is arranged to be gradually inclined outward from bottom to top.

[0006] Furthermore, the upper surface of the retaining spring and the lower surface of the base plate are plated, and only the upper surface of the retaining spring in contact with the battery and the lower surface of the base plate in contact with the PCB board are plated, thereby reducing the plating cost.

[0007] Furthermore, the coating is a metal material with a certain conductivity.

[0008] Furthermore, the plating layer is gold, silver, copper or nickel.

[0009] Furthermore, the coating thickness is 0.01 μm to 0.03 μm.

[0010] Furthermore, a reinforcing rib is provided in the middle of the clamping spring to improve the strength of the clamping spring.

[0011] Furthermore, the spring piece is an integrated structure, and the material of the spring piece is SUS301, SUS304, phosphor bronze or beryllium copper.

[0012] Furthermore, the height from the bottom plate of the spring to the retaining spring is ≥0.5 mm, and the minimum working height can be as low as 0.5 mm.

[0013] The beneficial effects of adopting the above-mentioned technical solution of the utility model are:

[0014] The open-type limiting battery spring of the utility model guides the upward and downward movement of the retaining spring through the limiting slide rail, thereby avoiding the problems of overpressure and over-rebound, and avoiding the movement of the retaining spring in the left and right directions, thereby preventing the spring from being deformed;

[0015] The spring will not interfere with other parts during the pressing process, which can increase the utilization rate of the circuit board;

[0016] Use local plating to reduce the plating content and lower production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The schematic diagram of the open-type limited battery spring structure of the utility model Figure 1 ;

[0018] Figure 2 The schematic diagram of the open-type limited battery spring structure of the utility model Figure 2 ;

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1-bottom plate, 2-support column, 3-circlip, 31-limiting plate, 32-limiting block, 33-reinforcement rib, 4-limiting slide rail, 41-limiting groove, 42-limiting buckle. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings 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.

[0022] like Figure 1-2 As shown, this embodiment provides an open-type limiting battery spring, including a bottom plate 1, a support column 2, a clamping spring 3 and a limiting slide rail 4, wherein the limiting slide rail 4, the bottom plate 1, the support column 2 and the clamping spring 3 are sequentially connected, a limiting groove 41 is arranged in the middle of the limiting slide rail 4, an inwardly bent limiting buckle 42 is arranged at the upper end of the limiting slide rail 4, the clamping spring 3 is arranged with an outwardly bent limiting piece 31, a limiting block 32 is arranged at the outer end of the limiting piece 31, and the limiting block 32 extends into the limiting groove 41 of the limiting slide rail 4 to ensure that the clamping spring 3 does not deform in the left and right directions, and the limiting The groove 41 is arranged longitudinally, and the limit block 32 can move up and down in the limit groove 41. When the battery is installed, the retaining spring 3 is pressed down to ensure that an interference fit is formed with the battery and no virtual connection occurs. When the limit block 32 is at the upper limit position of the limit slide rail 4, the limit buckle 42 and the limit sheet 31 are fitted with the buckle to prevent the limit block 32 from escaping from the limit groove 41. The lower end of the limit groove 41 is limited by the bottom plate 1 to prevent the spring sheet from being over-pressed. The upper limit and the lower limit are used to ensure that the retaining spring 3 stops moving when it reaches the upper and lower limit positions when moving up and down. The limit slide rail 4 is gradually inclined outward from bottom to top.

[0023] The working principle of the open-type limiting battery spring in this embodiment is as follows: when the battery is loaded, the battery squeezes the spring 3, the limiting block 32 moves downward along the limiting groove 41, and is limited at the lower limit position by the bottom plate 1, and the elastic force of the spring 3 ensures an interference fit with the battery. After the battery is removed, the limiting block 32 moves upward in the limiting groove 41, and is limited at the upper limit position by the limiting buckle 42, preventing the limiting block 32 from falling out of the limiting groove 41 and avoiding rebounding.

[0024] Preferably, the upper surface of the retaining spring 3 and the lower surface of the bottom plate 1 are plated, and only the upper surface of the retaining spring 3 in contact with the battery and the lower surface of the bottom plate 1 in contact with the PCB board are plated, thereby reducing the plating cost.

[0025] Specifically, the plating layer is a metal material with a certain conductivity, the plating layer is gold, silver, copper or nickel, and the thickness of the plating layer is 0.01 μm to 0.03 μm.

[0026] Preferably, a reinforcing rib 33 is provided in the middle of the clamp spring 3 to improve the strength of the clamp spring 3 while reducing the contact area, lowering the impedance and enhancing the conductivity of the electrical connection.

[0027] Specifically, the spring piece is an integrated structure, and the material of the spring piece is SUS301, SUS304, phosphor bronze or beryllium copper.

[0028] Specifically, the height from the bottom plate 1 of the spring to the clamping spring 3 is ≥0.5 mm, and the minimum working height can be as low as 0.5 mm.

[0029] In summary, the open-type limiting battery spring of the utility model guides the up and down movement of the retaining spring through the limiting slide rail, thereby avoiding the problems of overpressure and over-rebound, and avoiding the movement of the retaining spring in the left and right directions, thereby preventing the spring from deforming; the spring will not interfere with other parts during the downward pressing process, thereby increasing the utilization rate of the circuit board; local plating is used to reduce the plating content and reduce production costs.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An open-type limiting battery spring, characterized in that: It includes a base plate, a support column, a retaining spring and a limit slide rail, the limit slide rail, the base plate, the support column and the retaining spring are connected in sequence, a limit groove is arranged in the middle of the limit slide rail, an inwardly bent limit buckle is arranged at the upper end of the limit slide rail, the retaining spring is arranged with an outwardly bent limit sheet, a limit block is arranged at the outer end of the limit sheet, the limit block extends into the limit groove of the limit slide rail, when the limit block is at the upper limit position of the limit slide rail, the limit buckle and the limit sheet are fitted with the buckle, and the limit slide rail is gradually inclined outward from bottom to top.

2. The open-type limiting battery spring according to claim 1, characterized in that: The upper surface of the clamping spring and the lower surface of the base plate are plated.

3. The open-type limiting battery spring according to claim 2, characterized in that: The plating layer is a metal material with a certain conductivity.

4. The open-type limiting battery spring according to claim 3, characterized in that: The plated layer is gold, silver, copper or nickel.

5. The open-type limiting battery spring according to claim 2, characterized in that: The coating thickness is 0.01 μm to 0.03 μm.

6. The open-type limiting battery spring according to claim 1, characterized in that: A reinforcing rib is arranged in the middle of the clamping spring.

7. The open-type limiting battery spring according to claim 1, characterized in that: The spring piece is an integrated structure, and the material of the spring piece is SUS301, SUS304, phosphor bronze or beryllium copper.

8. The open-type limiting battery spring according to claim 1, characterized in that: The height from the bottom plate of the spring to the retaining ring is ≥0.5mm.

Images