Elastic sheet structure and Bluetooth earphone box
By incorporating a snap-fit component into the spring-loaded structure of the Bluetooth headset, and utilizing the elasticity of the metal material, the problem of loose side panels is solved, the lifespan of the spring-loaded structure is improved, and stable charging of the Bluetooth headset is ensured.
Patent Information
- Application Number
- CN202520470788.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-18
AI Technical Summary
The main body side plate of the spring-loaded structure in existing Bluetooth headsets is not strong enough and is prone to loosening, which leads to failure of the fixing function and affects the service life.
Design a spring-loaded structure, including a main component and an elastic component. The structure is connected by a snap-fit component on the side plate. The elasticity of the metal material is used to increase the relative elasticity of the snap-fit component and prevent loosening.
The lifespan of the spring contact structure has been improved, ensuring that the Bluetooth earphones are stably fixed during charging and extending the lifespan of the spring contact structure inside the charging case.
Smart Images

Figure CN223868310U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of Bluetooth headset technology, and in particular to a spring-loaded structure and a Bluetooth headset case. Background Technology
[0002] When charging Bluetooth earphones, the earphones need to be inserted into the earphone case so that the spring-loaded structure in the earphone case can fix the earphones in place and conduct electricity through the contact points on the spring-loaded structure.
[0003] In existing technologies, the side plates on the main body of the spring clip structure are not strong. As the usage time increases, they are prone to loosening, which can cause the side plates to explode and thus affect the fixing function of the spring clip structure. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spring sheet structure, which aims to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] A spring clip structure includes a main body assembly and an elastic component connected to the main body assembly. The main body assembly includes two opposing first side plates and a second side plate, a first snap-fit portion connected to the first side plate, a first connecting portion connected to the second side plate, and a second snap-fit portion connected to the first connecting portion. The first snap-fit portion and the second snap-fit portion are connected by a snap-fit component.
[0007] According to one aspect of the above technical solution, the latching component includes a latching member located on the side of the second latching portion close to the first latching portion, and the first latching portion is provided with a through hole for the latching member to pass through, and the upper end of the latching member abuts against the upper wall of the through hole.
[0008] According to one aspect of the above technical solution, the second side plate, the first connecting part, and the second buckle part are integrally formed and arranged in a "U" shape, with the first buckle part located on the side of the second buckle part close to the second side plate.
[0009] According to one aspect of the above technical solution, a cavity is formed between the first side plate and the second side plate, and the elastic component includes a second connecting portion connected between the first side plate and the second side plate, a bending portion connected to the second connecting portion near the cavity, and an abutting portion connected to the bending portion near the Bluetooth headset end.
[0010] According to one aspect of the above technical solution, the abutting part is U-shaped, and the end of the abutting part near the Bluetooth headset is provided with a contact point that contacts the charging copper pillar of the Bluetooth headset.
[0011] According to one aspect of the above technical solution, the elastic component further includes a first extension portion connected to the end of the abutment portion, and the main body component further includes a first enclosure portion and a second enclosure portion respectively disposed on the first side plate and the second side plate, a second extension portion and a third extension portion respectively connected to opposite sides of the first enclosure portion and the second enclosure portion, the abutment portion being located between the first enclosure portion and the second enclosure portion, and the second extension portion and the third extension portion being used to press against the first extension portion.
[0012] According to one aspect of the above technical solution, the main body component further includes a first positioning foot disposed below the first side plate and the second side plate.
[0013] According to one aspect of the above technical solution, the second side plate is provided with a back plate, and the back plate has a second positioning foot below it.
[0014] The present invention also provides a Bluetooth earphone case, including the spring-loaded structure described above.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] By setting up a main component, which includes two opposing first side plates and second side plates, and since the elastic component is connected to the main component, the main component will also be subjected to external force when the Bluetooth headset is pressed against the elastic component. As the usage time increases, the two side plates may burst open. Therefore, a first buckle part is set on the first side plate, and a first connecting part and a second buckle part are set on the second side plate. During installation, the second buckle part and the first buckle part are brought into contact and connected by the buckle component. Since the spring structure is made of metal material, it has good elasticity. In the design, there is a relative elastic force between the connection position of the first buckle part and the first side plate, and between the connection position of the second buckle part and the first connecting part. When the first buckle part and the second buckle part are brought into contact, the relative elastic force will make the two parts make tight contact, thereby making the buckle component less likely to loosen and greatly improving the service life.
[0017] This utility model has a simple structure and can fix the two side plates with snap-fit components, thereby improving the service life of the spring contact structure inside the charging box. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the spring sheet structure in one embodiment of the present invention from a first-view perspective;
[0019] Figure 2This is a schematic diagram of the spring structure in one embodiment of the present invention from a second perspective;
[0020] Figure 3 for Figure 1 Exploded view of the structure;
[0021] Figure 4 This is a schematic diagram of the spring sheet structure in one embodiment of the present invention from a third-person perspective;
[0022] Explanation of key component symbols:
[0023] First side panel 10 Second side panel 11 First connecting part 12 First buckle part 13 Second buckle part 14 Fasteners 15 Through hole 16 First Encirclement 17 Second Extension 18 Second Enclosure 19 Third Extension 31 Second connecting part 21 Bending section 22 Responding Department 23 First Extension 24 Contact point 25 Back panel 32 cavity 30 First positioning foot 34 Second positioning foot 33
[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation
[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several 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 so that the disclosure of this utility model will be more thorough and complete.
[0026] It should be noted that when a component is said to be "fixed to" another component, it can be directly on 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. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0027] 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. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] Please see Figures 1 to 4 The image shows a spring sheet structure according to an embodiment of the present invention, including a main body assembly and an elastic component connected to the main body assembly. The main body assembly includes two opposing first side plates 10 and second side plates 11, a first snap-fit part 13 connected to the first side plate 10, a first connecting part 12 connected to the second side plate 11, and a second snap-fit part 14 connected to the first connecting part 12. The first snap-fit part 13 and the second snap-fit part 14 are connected by a snap-fit component.
[0029] Understandably, this utility model, by setting up a main component, includes two opposing first side plates 10 and second side plates 11. Since the elastic component is connected to the main component, when the Bluetooth headset presses against the elastic component, the main component will also be subjected to external force, which may cause the two side plates to burst open with the increase of usage time. Therefore, a first latching part 13 is provided on the first side plate 10, and a first connecting part 12 and a second latching part 14 are provided on the second side plate 11. During installation, the second latching part 14 and the first latching part 13 are brought into contact and connected by the latching component. Since the spring structure is made of metal material, it has good elasticity. In the design, there is a relative elastic force between the connection position of the first latching part 13 and the first side plate 10, and the connection position of the second latching part 14 and the first connecting part. When the first latching part 13 and the second latching part 14 are brought into contact, the relative elastic force will make the two contact tightly, thereby making the latching component less prone to loosening and greatly improving the service life.
[0030] This utility model has a simple structure and can fix the two side plates with snap-fit components, thereby improving the service life of the spring contact structure inside the charging box.
[0031] Specifically, in this embodiment, the latching component includes a latching member 15 located on the side of the second latching part 14 near the first latching part 13. The first latching part 13 has a through hole 16 through which the latching member 15 passes. The upper end of the latching member 15 abuts against the upper wall of the through hole 16. The second side plate 11, the first connecting part 12, and the second latching part 14 are integrally formed and arranged in a "U" shape. The first latching part 13 is located on the side of the second latching part 14 near the second side plate 11.
[0032] Understandably, during installation, by having the latching member 15 on the second latching part 14 pass through the through hole 16 on the first latching part 13, the lateral displacement between the first latching part 13 and the second latching part 14 can be restricted. Under the rebound action of the first latching part 13 and the second latching part 14, the upper end of the latching member 15 can be tightly abutted against the upper wall of the through hole 16, thereby restricting the longitudinal displacement between the first latching part 13 and the second latching part 14. In other embodiments, it is also possible to make only the connection between the first latching part 13 and the first side plate 10 elastic, and the connection between the second latching part 14 and the first connecting part 12 relatively rigid.
[0033] Furthermore, a cavity 30 is formed between the first side plate 10 and the second side plate 11. The elastic component includes a second connecting portion 21 connected between the first side plate 10 and the second side plate 11, a bent portion 22 connected to the second connecting portion 21 near the cavity 30, and an abutting portion 23 connected to the bent portion 22 near the Bluetooth headset. The abutting portion 23 is U-shaped, and the end of the abutting portion 23 near the Bluetooth headset has a contact point 25 that contacts the charging copper post of the Bluetooth headset.
[0034] Understandably, the abutment part 23 is angled. When the Bluetooth headset needs to be charged, the charging copper pillar of the Bluetooth headset will abut against the contact point 25 of the abutment part 23, causing the abutment part 23 to elastically displace towards the first connecting part 12. This design structure allows the bending part 22 to drive the abutment part 23 to have good elastic displacement capability, while greatly saving space. Preferably, in order to ensure good contact between the contact point 25 and the charging copper pillar of the headset, and to have good wear resistance and conductivity, the contact point 25 is plated with 60-120 u”min of nickel, then plated with 10 u”min of palladium nickel and 20 u”min of gold. To ensure the requirement of 10,000 charging cycles for the headset, the working spring force of this spring is 23±5gf, and the mechanical life is 20,000 cycles.
[0035] Furthermore, the elastic component also includes a first extension portion 24 connected to the end of the abutment portion 23, and the main body component also includes a first enclosure portion 17 and a second enclosure portion 19 respectively disposed on the first side plate 10 and the second side plate 11, a second extension portion 18 and a third extension portion 31 respectively connected to the opposite sides of the first enclosure portion 17 and the second enclosure portion 19, the abutment portion 23 being located between the first enclosure portion 17 and the second enclosure portion 19, and the second extension portion 18 and the third extension portion 31 being used to press against the first extension portion 24.
[0036] Understandably, by providing a first surrounding portion 17 and a second surrounding portion 19 on opposite sides of the first side plate 10 and the second side plate 11, the abutment portion 23 is confined within the space between the first surrounding portion 17 and the second surrounding portion 19, thus limiting the lateral displacement of the abutment portion 23. By providing a second extension portion 18 and a third extension portion 31 on opposite sides of the first surrounding portion 17 and the second surrounding portion 19, and providing a first extension portion 24 at the end of the abutment portion 23, when the charging copper post abuts against the abutment portion 23, the first extension portion 24 will rotate toward the second extension portion 18 and the third extension portion 31 until the first extension portion 24 contacts the second extension portion 18 and the third extension portion 31, at which point the abutment portion 23 reaches its maximum rotation angle, thereby limiting the maximum elastic displacement of the abutment portion 23.
[0037] Furthermore, the main body component also includes a first positioning foot 34 disposed below the first side plate 10 and the second side plate 11; the second side plate 11 is provided with a back plate 32, and a second positioning foot 33 is provided below the back plate 32.
[0038] Understandably, in order to ensure that this spring structure is better attached to the PCBA motherboard and improve accuracy, the lower end of the spring structure adopts a pin-type design, which makes the entire spring assembly better positioned and ensures the accuracy of the spring assembly.
[0039] In summary, the spring sheet structure in the above embodiments of this utility model is simple and can fix the two side plates by means of a snap-fit component, thereby improving the service life of the spring sheet structure inside the charging box.
[0040] The second embodiment of this utility model provides a Bluetooth earphone case, which has the spring contact structure of the first embodiment inside.
[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this 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 structure, characterized in that, The device includes a main body assembly and an elastic component connected to the main body assembly. The main body assembly includes two opposing first side plates and a second side plate, a first snap-fit portion connected to the first side plate, a first connecting portion connected to the second side plate, and a second snap-fit portion connected to the first connecting portion. The first snap-fit portion and the second snap-fit portion are connected by a snap-fit component.
2. The spring-loaded structure according to claim 1, characterized in that, The latching component includes a latching member located on the side of the second latching portion close to the first latching portion. The first latching portion has a through hole through which the latching member passes, and the upper end of the latching member abuts against the upper wall of the through hole.
3. The spring-loaded structure according to claim 1, characterized in that, The second side plate, the first connecting part, and the second buckle part are integrally formed and arranged in a "U" shape, with the first buckle part located on the side of the second buckle part close to the second side plate.
4. The spring-loaded structure according to claim 1, characterized in that, A cavity is formed between the first side plate and the second side plate. The elastic component includes a second connecting portion connected between the first side plate and the second side plate, a bending portion connected to the second connecting portion near the cavity, and an abutting portion connected to the bending portion near the Bluetooth headset end.
5. The spring-loaded structure according to claim 4, characterized in that, The abutment part is U-shaped, and the end of the abutment part near the Bluetooth headset has a contact point that contacts the charging copper pillar of the Bluetooth headset.
6. The spring-loaded structure according to claim 5, characterized in that, The elastic component further includes a first extension portion connected to the end of the abutment portion. The main body component further includes a first enclosure portion and a second enclosure portion respectively disposed on the first side plate and the second side plate, a second extension portion and a third extension portion respectively connected to opposite sides of the first enclosure portion and the second enclosure portion, the abutment portion being located between the first enclosure portion and the second enclosure portion, and the second extension portion and the third extension portion being used to press against the first extension portion.
7. The spring-loaded structure according to claim 1, characterized in that, The main body component also includes a first positioning foot located below the first side plate and the second side plate.
8. The spring-loaded structure according to claim 1, characterized in that, The second side plate is provided with a back plate, and the back plate has a second positioning foot below it.
9. A Bluetooth earphone case, characterized in that, The spring structure includes any one of claims 1 to 8.