Film cloth conductive patch

Abstract

The utility model discloses a membrane cloth conductive patch, which relates to the technical field of medical instruments and comprises a tabletting assembly and a sealing assembly. The pressing piece assembly comprises a metal elastic piece, an insulation protection film is arranged on the edge of the lower end of the metal elastic piece, an elastic piece contact is arranged on the inner side of the insulation protection film, a micro electrode interface is formed in the middle of the insulation protection film, the sealing assembly comprises non-woven fabric, and an installation groove is formed in the non-woven fabric. A first connecting steel sheet is arranged on the outer side of the lower surface of the non-woven fabric, and a sealing gasket and a second connecting steel sheet are arranged on the lower surface of the insulating protective film. According to the utility model, through the arrangement of the patch assembly, the arrangement of the metal elastic sheet and the like, the problems of liquid corrosion, sealing failure and short circuit of a traditional conductive patch in the application of beauty products are effectively solved.

Description

A conductive film patch Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a conductive membrane patch. Background Technology

[0002] A flat dome switch, also known as a metal dome or metal spring, is a tactile switch component widely used in electronic devices. It is typically made of stainless steel or nickel alloy and is shaped like a hemispherical or conical dome with a conductive coating on the bottom. When the top of the dome is pressed, the dome indents, causing the conductive coating on the bottom to contact the contacts on the PCB board, thus creating a circuit and enabling the switch function. This structure gives the dome excellent elasticity and conductivity, providing clear and timely tactile feedback, and a long service life.

[0003] However, with the development of technology and the emergence of new application scenarios, the limitations of traditional planar dome switches have gradually become apparent: Traditional planar dome switches are mainly fixed to rigid circuit boards by welding or adhesive; this fixing method limits its application range, making it impossible to directly attach to flexible materials, such as textiles, mask fabrics, silicone, and other non-rigid substrates. This is a serious limitation for applications that need to integrate switches into flexible electronic devices, wearable devices, medical sensors, and other fields. Traditional metal patches are usually made of stainless steel or nickel alloys. Although they have a certain degree of corrosion resistance, they are still prone to oxidation when exposed to humid or liquid environments for a long time. This will cause an oxide layer to form on the metal surface, increasing contact resistance, reducing conductivity, and even ultimately causing switch failure. This is a fatal flaw for electronic devices that need to be used underwater or in humid environments.

[0004] Based on this, a conductive membrane patch is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this invention is to provide a conductive film patch to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A conductive membrane patch includes a pressing assembly and a sealing assembly;

[0008] The pressing assembly includes a metal spring sheet, with an insulating protective film at the lower edge of the metal spring sheet. A spring sheet contact is provided on the inner side of the insulating protective film, and a micro-electrode interface is provided in the middle of the insulating protective film. The sealing assembly includes a non-woven fabric, with an installation groove. A first connecting steel sheet is provided on the outer side of the lower surface of the non-woven fabric, and a sealing gasket and a second connecting steel sheet are provided on the lower surface of the insulating protective film. Corresponding positions of the sealing gasket, the second connecting steel sheet, and the first connecting steel sheet are provided with communicating connecting grooves, and the inner wall of the connecting groove is provided with a waterproof adhesive layer.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: the metal spring is disposed inside the mounting groove, and the spring contact is connected to the corresponding flexible conductive silver paste line through a micro-electrode interface.

[0011] In one alternative: the metal spring is made of 316L stainless steel with a thickness of 0.05 to 0.2 mm, and its surface is covered with a nano-scale hydrophobic coating.

[0012] In one alternative: the nanoscale hydrophobic coating is a polytetrafluoroethylene modified coating.

[0013] In one alternative: both the first connecting steel plate and the second connecting steel plate are magnetically connected to an external power source or skin care device.

[0014] In one alternative, the sealing gasket is made of EPDM rubber.

[0015] In one alternative: the flexible conductive silver paste line is positioned inside the connecting groove.

[0016] In one alternative: a sealing layer is provided on the inner side of the mounting groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention utilizes a patch assembly, including a metal spring with a PTFE-modified coating, to effectively improve the metal spring's corrosion resistance. Simultaneously, the inclusion of a sealing layer and gasket effectively solves the problems of liquid corrosion, sealing failure, and short circuits faced by traditional conductive patches in beauty product applications. This extends the device's lifespan in liquid environments, allowing it to be immersed in cosmetic essences for extended periods without affecting its functionality. This expands its application beyond conventional PCB boards to the beauty industry, including smart face masks and smart breast masks. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 is a side view of the overall structure of this utility model.

[0021] Figure 3 is an exploded view of the overall structure of this utility model.

[0022] Figure 4 is a schematic diagram of the internal structure of the patch assembly of this utility model.

[0023] Figure reference numerals: 1. Metal spring; 2. Non-woven fabric; 3. First connecting steel plate; 4. Sealing gasket; 5. Second connecting steel plate; 6. Connecting groove; 7. Miniature electrode interface; 8. Mounting groove; 9. Insulating protective film; 10. Spring contact. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] In one embodiment, as shown in Figures 1-4, a conductive membrane patch includes a pressing assembly and a sealing assembly.

[0026] The pressing assembly includes a metal spring 1, with an insulating protective film 9 at the lower edge of the metal spring 1. A spring contact 10 is provided on the inner side of the insulating protective film 9, and a micro electrode interface 7 is provided in the middle of the insulating protective film 9. The sealing assembly includes a non-woven fabric 2, with an installation groove 8. A first connecting steel sheet 3 is provided on the outer side of the lower surface of the non-woven fabric 2. A sealing gasket 4 and a second connecting steel sheet 5 are provided on the lower surface of the insulating protective film 9. A connecting groove 6 is provided at the corresponding positions of the sealing gasket 4, the second connecting steel sheet 5, and the first connecting steel sheet 3. A waterproof adhesive layer is provided on the inner wall of the connecting groove 6.

[0027] In this embodiment, the patch is fixed in the corresponding position by the first connecting steel plate 3 and the second connecting steel plate 5 during use. The flexible conductive silver paste line of the connecting circuit board is set inside the connecting groove 6. Then, it is connected to the spring contact 10 through the micro electrode interface 7. Subsequently, during use, the spring contact 10 is touched by pressing the metal spring 1 to complete the transmission of electrical signals.

[0028] In one embodiment, as shown in FIG3, the metal spring 1 is disposed inside the mounting groove 8, and the spring contact 10 is connected to the corresponding flexible conductive silver paste line through the micro electrode interface 7 to improve the overall sealing effect.

[0029] In one embodiment, as shown in Figure 1, the metal spring 1 is made of 316L stainless steel with a thickness of 0.05 to 0.2 mm, adapts to the bending deformation of the membrane cloth, and is covered with a nano-level hydrophobic coating to prevent corrosion of the essence.

[0030] In one embodiment, as shown in FIG1, the nanoscale hydrophobic coating is a polytetrafluoroethylene modified coating, which improves the corrosion resistance of the metal spring 1.

[0031] In one embodiment, as shown in Figure 2, both the first connecting steel plate 3 and the second connecting steel plate 5 are magnetically connected to an external power source or skincare device to improve the adhesion.

[0032] In one embodiment, as shown in Figure 2, the sealing gasket 4 is made of EPDM rubber, which improves heat resistance and chemical corrosion resistance, thereby increasing service life.

[0033] In one embodiment, as shown in FIG2, the flexible conductive silver paste line is limited and disposed inside the connecting groove 6 to improve the protection of the flexible conductive silver paste line.

[0034] In one embodiment, as shown in Figure 3, a sealing layer is provided on the inner side of the mounting groove 8 to improve the overall sealing and waterproofing effect.

[0035] The above embodiments disclose a conductive film patch, wherein, in use, the patch is fixed in the corresponding position by the first connecting steel plate 3 and the second connecting steel plate 5, the flexible conductive silver paste line of the connecting circuit board is set in the inner side of the connecting groove 6, and then connected to the spring contact 10 through the micro electrode interface 7. Subsequently, in use, the spring contact 10 is touched by pressing the metal spring 1 to complete the transmission of electrical signals.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A conductive membrane patch, comprising a pressing assembly and a sealing assembly; characterized in that, The pressing assembly includes a metal spring (1), an insulating protective film (9) is provided on the lower edge of the metal spring (1), a spring contact (10) is provided on the inner side of the insulating protective film (9), a micro electrode interface (7) is provided in the middle of the insulating protective film (9), the sealing assembly includes a non-woven fabric (2), the non-woven fabric (2) has an installation groove (8), a first connecting steel plate (3) is provided on the outer side of the lower surface of the non-woven fabric (2), a sealing gasket (4) and a second connecting steel plate (5) are provided on the lower surface of the insulating protective film (9), and a connecting groove (6) is provided at the corresponding positions of the sealing gasket (4), the second connecting steel plate (5) and the first connecting steel plate (3), and a waterproof adhesive layer is provided on the inner wall of the connecting groove (6).

2. The conductive film patch according to claim 1, characterized in that, The metal spring (1) is disposed inside the mounting groove (8), and the spring contact (10) is connected to the corresponding flexible conductive silver paste line through the micro electrode interface (7).

3. The conductive film patch according to claim 1, characterized in that, The metal spring (1) is made of 316L stainless steel with a thickness of 0.05 to 0.2 mm and is covered with a nano-level hydrophobic coating.

4. The conductive film patch according to claim 3, characterized in that, The nanoscale hydrophobic coating is a polytetrafluoroethylene modified coating.

5. The conductive film patch according to claim 1, characterized in that, Both the first connecting steel plate (3) and the second connecting steel plate (5) are magnetically connected to an external power supply or skin care device.

6. The conductive film patch according to claim 1, characterized in that, The sealing gasket (4) is made of EPDM rubber.

7. The conductive film patch according to claim 2, characterized in that, The flexible conductive silver paste line is limited and positioned inside the connecting groove (6).

8. The conductive film patch according to claim 1, characterized in that, A sealing layer is provided on the inner side of the mounting groove (8).

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