Multifunctional back pressure elastic sheet assembly

Abstract

The utility model discloses a multifunctional back pressure elastic sheet assembly, which comprises a bottom plate, a wire clamp part and an elastic sheet part, the wire clamp part comprises a pair of wire clamp arms which are formed by folding and extending the two sides of the bottom plate upwards and are in mirror symmetry and can be used for clamping and fixing a wire clamp; the elastic sheet part comprises a transition part which is formed by reversely folding and extending downwards from the rear end of the bottom plate and is parallel to the bottom plate, an elastic arm which is formed by obliquely bending and extending downwards from the tail end of the transition part, and a supporting part which is formed by reversely bending from the tail end of the elastic arm and extending towards the bottom surface of the bottom plate. According to the utility model, the wire clamp part and the elastic sheet part are designed together in an up-and-down overlapping manner, so that the horizontal occupied area of a product on a PCB (Printed Circuit Board) is effectively reduced, the appearance size is reduced, miniaturization and light weight are realized, two original products are formed by one set of die in a stamping manner, the process is simplified, two functional parts can be mounted by one-time surface mounting, and the production cost is reduced. And the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric connectors, and in particular relates to a spring assembly. Background Art

[0002] In the field of electrical connectors, spring clips are widely used in electronic communications equipment, for example, to transmit antenna signals or signals between electronic components and the motherboard, as well as to contact the middle frame or back cover. As the link for signal transmission, the spring clip not only transmits antenna signals and electronic components to the motherboard, but also provides contact with the middle frame or back cover, ensuring signal stability and efficiency. Wire clamps, on the other hand, primarily secure coaxial cables to PCBs for routing, providing a solid support for the coaxial cable's placement and routing. For coaxial cables with grounding rings, the wire clamp also serves as a grounding device, ensuring the device's electromagnetic compatibility and safety.

[0003] However, due to the limited space on mobile phone motherboards and the increasing demand for product miniaturization, the requirements for component dimensions are also shrinking. Traditional spring clip structures are not only large in size but also often employ a split design, requiring two sets of molds to produce the spring clip and wire clip, resulting in high costs and occupying a large amount of internal motherboard space. Therefore, how to fully utilize the horizontal layout area of the PCB board and further reduce the horizontal dimensions of components has become a pressing issue. Furthermore, consumer demand for diversified product functions and expectations for cost control have also placed higher demands on the design of spring clips and wire clips. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional counter-pressure spring assembly to solve the shortcomings of the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A multifunctional counter-pressure spring assembly comprises a base plate, a wire clamp portion and a spring portion; the wire clamp portion comprises a pair of mirror-symmetrical wire clamp arms that are folded upward and extended from both sides of the base plate and can clamp the wire clamp; the spring portion comprises a transition portion parallel to the base plate formed by folding downward and extending from the rear end of the base plate, an elastic arm that is bent downward and extended from the end of the transition portion, and a supporting portion that is bent in reverse from the end of the elastic arm and extends toward the bottom surface of the base plate, and the end of the supporting portion can slide back and forth along the bottom surface of the base plate as the elastic arm floats up and down.

[0007] Furthermore, both sides of the support portion extend outward to form limited support arms.

[0008] Furthermore, both sides of the bottom plate are bent vertically downward and extended to form protective side walls.

[0009] Furthermore, the wire clamp arm is formed by folding and extending the protective side wall portion upward.

[0010] Furthermore, the end portion of the protective side wall is bent horizontally inward to form a hanging platform for limiting the limiting support arm.

[0011] Furthermore, the end portion of the protective side wall extends vertically downward to form a welding foot.

[0012] Furthermore, the middle portion of the wire clamp arm is bent to form an arc-shaped clamping portion that fits the shape and size of the coaxial line.

[0013] Furthermore, the end of the wire clamp arm adopts a closed design and is bent outward to form a guide portion with an arc.

[0014] Furthermore, the contact surface portion at the junction of the elastic arm and the support portion protrudes outward to form a contact head for electrically contacting a metal connection area of a terminal device.

[0015] Compared with the prior art, the multifunctional counter-pressure spring assembly provided by the present invention has the following beneficial technical effects:

[0016] 1. By designing the wire clamp part and the spring part in an overlapping form, the horizontal area occupied by the product on the PCB is effectively reduced, the overall size is reduced, miniaturization and lightweight are achieved, the yield value is reduced, and the elastic stability and service life are effectively improved.

[0017] 2. The utility model realizes the stamping and forming of two original products with one set of molds, simplifies the process, and can complete the installation of two major functional parts in one patch, thereby improving production efficiency and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0019] Figure 1 A front structural diagram of a multifunctional counter-pressure spring assembly provided by an embodiment of the present utility model;

[0020] Figure 2 A schematic diagram of the back structure of a multifunctional counter-pressure spring assembly provided by an embodiment of the present utility model;

[0021] Figure 3 A front view of a multifunctional counter-pressure spring assembly provided in an embodiment of the present utility model;

[0022] Figure 4A cross-sectional view of a multifunctional counter-pressure spring assembly provided in an embodiment of the present utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1-base plate, 2-protective side wall, 201-hanging platform, 202-welding foot, 3-transition part, 4-elastic arm, 401-contact head, 5-support part, 501-limiting support arm, 6-clamping arm, 601-clamping part, 602-guide part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, the embodiment of the present invention provides a multifunctional counter-pressure spring assembly, which is formed by bending a 0.10mm thick high-elastic metal material in one piece, and includes a bottom plate 1, a protective side wall 2, a spring part and a wire clamp part. Specifically:

[0027] In this embodiment, the protective sidewalls 2 are formed by vertically bending downward from both sides of the base plate 1, providing overvoltage protection for the spring element. The distal ends of the protective sidewalls 2 extend vertically downward to form solder pins 202, which allow the spring element assembly to be soldered to the signal connection portion of the circuit board. The spring element comprises a transition portion 3, an elastic arm 4, and a support portion 5. The transition portion 3 extends downward from the rear end of the base plate 1 and is parallel to the base plate 1.

[0028] The elastic arm 4 is formed by bending downward at an angle from the end of the transition portion 3. Through its own elastic force, it can always abut against the metal connection area of the circuit board and the shell of the terminal device during operation to achieve electrical contact. In addition, a partially outwardly protruding contact head 401 is provided on the contact surface where the elastic arm 4 meets the support portion 5, which can ensure that the metal connection area of the terminal device has good electrical contact.

[0029] The support portion 5 is formed by bending in the opposite direction from the end of the elastic arm 4 and extending toward the bottom surface of the base plate 1. The end of the support portion 5 can slide back and forth along the bottom surface of the base plate 1 as the elastic arm 4 floats up and down, which not only increases the contact force of the spring body to a certain extent, but also plays a certain supporting role, thereby preventing the elastic arm 4 from being squeezed and deformed too much.

[0030] Furthermore, to prevent the support portion 5 from being dislocated and damaged due to external forces or excessive rebound forces, as a preferred embodiment, two mirror-symmetrical limiting arms 501 are formed extending outward from both sides of the support portion 5. Correspondingly, the end portion of the protective side wall 2 is horizontally bent inward to form a hanging platform 201 that cooperates with the limiting arms 501. The hanging platform 201 can limit the rebound position of the limiting arms 501.

[0031] The wire clamp portion includes a wire clamp arm 6 formed by folding and extending the protective side walls 2 on both sides of the bottom plate 1 upward. The two wire clamp arms 6 are arranged in a mirror-symmetrical manner, and the middle part of the wire clamp arm 6 is bent to form an arc-shaped clamping portion 601 that fits the shape and size of the coaxial line, which can clamp the wire clamp. The multifunctional counter-pressure spring element provided by the utility model effectively reduces the horizontal area occupied by the product on the circuit board by designing the wire clamp portion and the spring element portion in an overlapping form, reduces the external dimensions, and achieves miniaturization and lightweighting. Moreover, it realizes the stamping and forming of the original two products with a set of molds, simplifies the process, and can complete the installation of two major functional parts in one patch, thereby improving production efficiency and reducing production costs.

[0032] Furthermore, to ensure the insertion and extraction forces when the clamping portion engages the coaxial line, as well as the positive force when compressed into the working state, and thus prevent the coaxial line from loosening, the clamping arm 6 adopts a closed-end design (i.e., the opening of the clamping arm 6 is smaller than the outer diameter of the coaxial line) based on the size of the coaxial line to ensure the clamping force. Furthermore, the end of the clamping arm 6 is bent outward at a certain arc to form a guide portion 602. This not only facilitates the insertion of the coaxial line into the clamping portion of the clamping arm 6, but also prevents burrs on the edge of the clamping arm 6 from piercing the flexible wire and causing functional failure of the coaxial line.

[0033] The above-described embodiments merely represent implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A multifunctional counter-pressure spring assembly, characterized in that: It comprises a bottom plate (1), a wire clamp portion and a spring portion; The wire clamp portion comprises a pair of mirror-symmetrical wire clamp arms (6) that are folded upward and extended from both sides of the base plate (1) and can clamp the wire clamp; The spring portion comprises a transition portion (3) parallel to the bottom plate (1) formed by folding downward from the rear end of the bottom plate (1), an elastic arm (4) extending obliquely downward from the end of the transition portion (3), and a support portion (5) formed by bending backward from the end of the elastic arm (4) and extending toward the bottom surface of the bottom plate (1), wherein the end of the support portion (5) can slide back and forth along the bottom surface of the bottom plate (1) as the elastic arm (4) floats up and down.

2. The multifunctional counter-pressure spring assembly according to claim 1, characterized in that: Both sides of the support portion (5) extend outward to form limited support arms (501).

3. The multifunctional counter-pressure spring assembly according to claim 2, characterized in that: Both sides of the bottom plate (1) are bent vertically downward and extended to form protective side walls (2).

4. The multifunctional counter-pressure spring assembly according to claim 3, characterized in that: The wire clamp arm (6) is formed by partially folding and extending the protective side wall (2) upward.

5. The multifunctional counter-pressure spring assembly according to claim 3, characterized in that: The end portion of the protective side wall (2) is horizontally bent inward to form a hanging platform (201) for limiting the position of the limiting support arm (501).

6. The multifunctional counter-pressure spring assembly according to claim 3, characterized in that: The end portion of the protective side wall (2) extends vertically downward to form a welding foot (202).

7. The multifunctional counter-pressure spring assembly according to claim 1, characterized in that: The middle portion of the wire clamp arm (6) is bent to form an arc-shaped clamping portion (601) that matches the shape and size of the coaxial line.

8. The multifunctional counter-pressure spring assembly according to claim 7, characterized in that: The end of the wire clamp arm (6) adopts a closed design and is bent outwards to form a guide portion (602) with an arc.

9. A multifunctional counter-pressure spring assembly according to any one of claims 1 to 8, characterized in that: The contact surface portion at the junction of the elastic arm (4) and the support portion (5) protrudes outwards to form a contact head (401) for electrically contacting the metal connection area of the terminal device.

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