Corrosion-resistant earphone charging box shell
By using an epoxy resin adhesive layer and a desiccant layer in the headphone charging box shell, combined with a breathable layer, a flame retardant layer and a reinforcement layer, the existing headphone charging box has been solved, extending its service life and avoiding combustion risks.
Patent Information
- Application Number
- CN202421882171.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing headphone charging boxes have poor corrosion resistance and do not have flame retardant properties, resulting in a short service life and cannot meet the needs of modern people.
A corrosion-resistant headphone charging box shell is designed, using an epoxy resin adhesive layer as the corrosion-resistant layer, and a moisture-proof cavity and a desiccant layer are installed inside to increase the breathable layer, the first and second flame-retardant layers, the reinforcement layer and the flame-retardant polyester layer to improve the flame retardancy and service life of the shell.
By setting up a corrosion-resistant layer and a moisture-proof cavity, the corrosion resistance and moisture-proof performance of the shell are improved; through the breathable layer and flame-retardant layer, the breathable effect and flame-retardant of the shell are increased, the service life is extended, and combustion conditions are avoided.
Smart Images

Figure CN222928484U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of earphone charging boxes, in particular to a corrosion-resistant earphone charging box shell. Background Art
[0002] Nowadays, with the improvement of modern people's aesthetic and travel needs, the demand for wireless Bluetooth earphones is increasing day by day. Wireless Bluetooth earphones solve the various inconveniences of traditional wired earphones. However, since wireless Bluetooth earphones must be charged after being used for a period of time, the charging box of wireless Bluetooth earphones has become an indispensable part of wireless Bluetooth earphones.
[0003] Users sometimes use earphones in an environment with strong corrosion. However, the existing earphone charging boxes have poor corrosion resistance and do not have properties such as flame retardancy, resulting in a short service life of the earphone charging boxes and unable to meet the current usage needs of people. Therefore, there is an urgent need for a corrosion-resistant earphone charging box that meets the needs of different people. Summary of the Utility Model
[0004] Based on this, the purpose of the utility model is to provide a corrosion-resistant earphone charging box shell with a long service life.
[0005] The utility model adopts the following technical solutions:
[0006] A corrosion-resistant earphone charging box shell includes a box body. The outer surface of the box body is provided with a corrosion-resistant layer; a performance layer is arranged inside the box body. A moisture-proof cavity is arranged at the upper part of the box body, and a desiccant layer is filled inside the moisture-proof cavity; the performance layer includes a breathable layer, a first flame-retardant layer, a strengthening layer, and a second flame-retardant layer; the breathable layer is arranged inside the first flame-retardant layer; the first flame-retardant layer is arranged inside the strengthening layer; the strengthening layer is arranged inside the second flame-retardant layer.
[0007] Further improvement of the above technical solution is that the corrosion-resistant layer is an epoxy resin glue layer.
[0008] Further improvement of the above technical solution is that the box body includes a cover body and an earphone cavity. A hinge part is connected to the rear of the cover body, and the hinge part is connected to the earphone cavity below.
[0009] Further improvement of the above technical solution is that a first magnet is arranged on the front side of the cover body, a second magnet is arranged on the front side of the earphone cavity, and the first magnet and the second magnet are arranged to attract each other.
[0010] Further improvement of the above technical solution is that a charging port is arranged on one side of the earphone cavity, and a charging indicator light is arranged on one side of the charging port.
[0011] A further improvement to the above technical solution is that the breathable layer is a polytetrafluoroethylene layer, and the thickness of the breathable layer is 40μm - 100μm.
[0012] A further improvement to the above technical solution is that the first flame retardant layer is provided with a number of honeycomb filling holes, and flame retardant particles are provided inside the honeycomb filling holes.
[0013] A further improvement to the above technical solution is that the strengthening layer is a fiberglass needle punched felt layer.
[0014] A further improvement to the above technical solution is that the second flame retardant layer is a phenolic foam layer.
[0015] A further improvement to the above technical solution is that a flame retardant polyester layer is provided between the strengthening layer and the second flame retardant layer.
[0016] The beneficial effects of the present utility model are as follows:
[0017] The present utility model is provided with a corrosion resistant layer to improve the corrosion resistance of the outer surface of the housing; a moisture proof cavity is provided and a desiccant layer is filled therein, and the desiccant layer is directly communicated with the inside of the housing, which can absorb the water vapor in the inside of the housing, so that the inside of the housing always maintains a dry environment; through the breathable layer, the air permeability effect of the housing can be increased, through the first flame retardant layer, the flame retardancy of the housing can be increased, and through the strengthening layer and the second flame retardant layer, the external flame can be blocked. The housing has good flame retardancy, is not prone to burning, prolongs the service life of the present utility model, and is convenient for people to use. Description of the Drawings
[0018] Figure 1 is a schematic structural diagram of the corrosion resistant headphone charging box housing of the present utility model;
[0019] Figure 2 is Figure 1 a cross-sectional view of the corrosion resistant headphone charging box housing of;
[0020] Figure 3 is Figure 2 a partial enlarged view of circle A of the corrosion resistant headphone charging box housing of;
[0021] Figure 4 is Figure 1 a schematic structural diagram of the performance layer of the corrosion resistant headphone charging box housing of;
[0022] Figure 5 is Figure 4 a schematic structural diagram of the first flame retardant layer of the performance layer of the corrosion resistant headphone charging box housing of.
[0023] The reference numerals in the figures are:
[0024] 10. Box body; 11. Corrosion-resistant layer; 12. Cover body; 13. Headphone cavity; 14. Hinge part; 15. First magnet; 16. Second magnet; 17. Charging port; 18. Charging indicator light; 20. Performance layer; 21. Breathable layer; 22. First flame-retardant layer; 23. Reinforcement layer; 24. Second flame-retardant layer; 25. Honeycomb filling holes; 26. Flame-retardant particles; 27. Flame-retardant polyester layer; 30. Moisture-proof cavity; 31. Desiccant layer. Detailed implementation manner
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical direction", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, "first", "second", "third", "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0027] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.
[0028] Such as Figures 1 to 5As shown in the figure, this is an embodiment of the present utility model, which relates to a corrosion-resistant earphone charging box shell, including a box body 10, and a corrosion-resistant layer 11 is provided on the outer surface of the box body 10; a performance layer 20 is provided inside the box body 10, a moisture-proof cavity 30 is provided on the upper part of the box body 10, and a desiccant layer 31 is filled inside the moisture-proof cavity 30; the performance layer 20 includes a breathable layer 21, a first flame-retardant layer 22, a strengthening layer 23, and a second flame-retardant layer 24; the breathable layer 21, the first flame-retardant layer 22, the strengthening layer 23, and the second flame-retardant layer 24 are connected in sequence from the inside to the outside; the breathable layer 21 is arranged inside the first flame-retardant layer 22; the first flame-retardant layer 22 is arranged inside the strengthening layer 23; the strengthening layer 23 is arranged inside the second flame-retardant layer 24.
[0029] After the earphone charging box is used for a period of time, the desiccant layer 31 inside it will reach a saturated water absorption state and no longer absorb water. At this time, the desiccant layer 31 uses a desiccant made of a material with recovery characteristics, such as a desiccant made of montmorillonite material, to restore the function of keeping the storage cavity of the earphone charging box dry.
[0030] Further, as Figure 2 shown, the corrosion-resistant layer 11 is an epoxy resin glue layer. Specifically, the epoxy resin glue has high body strength, strong adhesion, good weather resistance, low shrinkage rate, and good corrosion resistance, which improves the corrosion resistance of the present utility model.
[0031] Further, as Figure 2 shown, the box body 10 includes a cover body 12 and an earphone cavity 13, a hinge part 14 is connected behind the cover body 12, and the hinge part 14 is connected below the earphone cavity 13. Specifically, the hinge part 14 is respectively connected to the cover body 12 and the earphone cavity 13 to prevent the cover body 12 and the earphone cavity 13 from detaching, and it has strong practicability.
[0032] Further, as Figure 2 shown, a first magnet 15 is provided on the front side of the cover body 12, a second magnet 16 is provided on the front side of the earphone cavity 13, and the first magnet 15 and the second magnet 16 are arranged to attract each other. Specifically, the first magnet 15 and the second magnet 16 are provided to stably connect the cover body 12 and the earphone cavity 13; in other embodiments, the connection method is not limited to magnet connection, and various connection components known in the art, such as snap-fit components, can also be used.
[0033] Further, as Figure 1 shown, a charging port 17 is provided on one side of the earphone cavity 13, and a charging indicator light 18 is provided on one side of the charging port 17. Specifically, the charging port 17 is used to charge the earphone charging box, and then charge the earphone; the charging indicator light 18 is provided. On the one hand, it can display that charging is in progress in a running light mode during charging, and on the other hand, it can display the remaining battery power, with high recognition.
[0034] Further, as Figure 4 shown, the breathable layer 21 is a polytetrafluoroethylene layer, and the thickness of the breathable layer 21 is 40 μm - 100 μm. Specifically, a component made of polytetrafluoroethylene is used as the breathable layer 21, so as to effectively prevent water. The thickness of the breathable layer 21 is 40 μm - 100 μm, so that it has the characteristic of being ultra-thin and reduces the occupation of space.
[0035] Further, as Figure 4 and Figure 5 shown, a plurality of honeycomb filling holes 25 are formed in the first flame retardant layer 22, and flame retardant particles 26 are arranged inside the honeycomb filling holes 25. Specifically, the honeycomb filling holes 25 are provided for filling the flame retardant particles 26 to improve the flame retardant performance of the housing, and secondly, the honeycomb structure effectively improves the strength of the housing. The arrangement of the flame retardant particles 26 effectively improves the flame retardant performance of the housing, and it has strong practicability.
[0036] Further, as Figure 4 shown, the reinforcing layer 23 is a fiberglass needle punched felt layer. Specifically, the good sound absorption, shock absorption, corrosion resistance, insulation, high temperature resistance and flame retardant properties of the fiberglass needle punched felt are utilized to enhance the flame retardant effect of the housing.
[0037] Further, as Figure 4 shown, the second flame retardant layer 24 is a phenolic foam layer. Specifically, the characteristics of phenolic foam plastics being difficult to burn, having low smoke and resisting high temperature distortion are utilized to further enhance the flame retardant and high temperature resistance properties of the housing.
[0038] Further, as Figure 4 shown, a flame retardant polyester layer 27 is arranged between the reinforcing layer 23 and the second flame retardant layer 24. Specifically, the reinforcing layer 23 and the second flame retardant layer 24 are stitched and connected through the flame retardant polyester, which can block the external flame. The housing has good flame retardancy and is not prone to burning, which is convenient for people to use.
[0039] The utility model is provided with a corrosion-resistant layer 11 to improve the corrosion resistance of the outer surface of the housing; a moisture-proof cavity 30 is provided, and a desiccant layer 31 is filled therein. The desiccant layer 31 is directly communicated with the inside of the housing, and can absorb the water vapor in the housing to keep the inside of the housing in a dry environment all the time; through the breathable layer 21, the breathable effect of the housing can be increased, through the first flame retardant layer 22, the flame retardancy of the housing can be increased, and through the reinforcing layer 23 and the second flame retardant layer 24, the external flame can be blocked. The housing has good flame retardancy and is not prone to burning, which prolongs the service life of the utility model and is convenient for people to use.
[0040] The above only expresses the preferred technical solutions of the present utility model, and its description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and the present utility model also intends to include these changes and modifications.
Claims
1. A corrosion-resistant earphone charging box shell, characterized in that: It includes a box body, the outer surface of which is provided with a corrosion-resistant layer; the interior of the box body is provided with a performance layer, the upper part of the box body is provided with a moisture-proof cavity, and the interior of the moisture-proof cavity is filled with a desiccant layer; the performance layer includes a breathable layer, a first flame-retardant layer, a reinforcement layer, and a second flame-retardant layer; the breathable layer is arranged on the inner side of the first flame-retardant layer; the first flame-retardant layer is arranged on the inner side of the reinforcement layer; the reinforcement layer is arranged on the inner side of the second flame-retardant layer.
2. The corrosion-resistant earphone charging box shell according to claim 1, characterized in that: The corrosion-resistant layer is an epoxy resin adhesive layer.
3. The corrosion-resistant earphone charging box shell according to claim 1, characterized in that: The box body comprises a cover body and an earphone cavity, the rear of the cover body is connected with a hinge part, and the lower part of the hinge part is connected to the earphone cavity.
4. The corrosion-resistant earphone charging box housing according to claim 3, characterized in that: A first magnet is disposed on the front side of the cover body, and a second magnet is disposed on the front side of the earphone cavity. The first magnet and the second magnet are arranged to attract each other.
5. The corrosion-resistant earphone charging box housing according to claim 3, characterized in that: A charging port is provided on one side of the earphone cavity, and a charging indicator light is provided on one side of the charging port.
6. The corrosion-resistant earphone charging box housing according to claim 1, characterized in that: The air permeable layer is a polytetrafluoroethylene layer, and the thickness of the air permeable layer is 40 μm-100 μm.
7. The corrosion-resistant earphone charging box housing according to claim 1, characterized in that: The first flame retardant layer is provided with a plurality of honeycomb filling holes, and flame retardant particles are arranged inside the honeycomb filling holes.
8. The corrosion-resistant earphone charging box housing according to claim 1, characterized in that: The strengthening layer is a glass fiber needle felt layer.
9. The corrosion-resistant earphone charging box housing according to claim 1, characterized in that: The second flame retardant layer is a phenolic foam layer.
10. The corrosion-resistant earphone charging box housing according to claim 1, characterized in that: A flame-retardant polyester layer is provided between the reinforcement layer and the second flame-retardant layer.