Unlock instant, AI-driven research and patent intelligence for your innovation.

Ventilation filter, method for affixing the ventilation filter, and method for manufacturing electrical device

A fixing method and filter technology, applied in membrane filters, chemical instruments and methods, electrical components, etc., can solve the problems of small tensile strength, narrowing of material selection, fracture, etc., and achieve the effect of preventing peeling

Active Publication Date: 2015-06-17
JAPAN GORE TEX INC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Peeling can be prevented by making the adhesive strength of the adhesive material B and the protective film lower than the adhesive strength of the adhesive material A and the adherend, but the selection range of the material is narrowed
Moreover, when using a porous polytetrafluoroethylene film (hereinafter referred to as "porous PTFE membrane") as a ventilation membrane, the porous PTFE membrane extends along the horizontal direction of the membrane, so the tensile strength relative to the vertical direction of the membrane is small. When the protective film is peeled off, there is a possibility that the venting film itself may break along the vertical direction of the film

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ventilation filter, method for affixing the ventilation filter, and method for manufacturing electrical device
  • Ventilation filter, method for affixing the ventilation filter, and method for manufacturing electrical device
  • Ventilation filter, method for affixing the ventilation filter, and method for manufacturing electrical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0052] 1. Outline of the structure of the breather filter

[0053] figure 1 It is an overview view of the breather filter according to Embodiment 1 of the present invention. exist figure 1 In this method, the first adhesive layer 2 , the vent film 3 , the second adhesive layer 4 , and the protective film 5 are sequentially stacked on the base sheet 1 to form a vent filter. The first adhesive layer 2 and the second adhesive layer 4 have openings 2a, 4a respectively (refer to Figure 19 ~ Figure 22 ). A notch 7 extending from the outer peripheral portion of the protective film 5 to a position corresponding to the opening 4 a of the second adhesive layer 4 is formed in the protective film 5 .

[0054] 2. Fixing method of breather filter and manufacturing method of electric device

[0055] A method for fixing the breather filter configured as described above to the adherend will be described. First, the laminates (first adhesive layer 2 / venting film 3 / second adhesive lay...

Embodiment approach 2

[0086] Hereinafter, a breather filter according to Embodiment 2 of the present invention will be described. Figure 5-8 It shows a top view of the breather filter according to Embodiment 2 of the present invention, and shows various variations of markings attached to the protective film 5 .

[0087] The protective film 5 of the breather filter of the present invention mostly uses transparent materials. Therefore, when the protective film 5 is peeled off, it may be difficult to recognize the portion (the knob portion 8 ) where the protective film 5 should be pinched. Therefore, in this embodiment, an example in which an optically recognizable mark (for example, characters, symbols, patterns, and colors) is added to the protective film 5 (especially the handle portion 8 ) to easily identify the portion to be pinched will be described. It should be noted that optical recognition includes not only being able to distinguish based on vision, but also including detection by other op...

Embodiment approach 3

[0094] Hereinafter, a breather filter according to Embodiment 3 of the present invention will be described.

[0095] Figure 9 yes figure 1 A cross-sectional view of the breather filter of Embodiment 1 shown, Figure 10 It is a sectional view of the breather filter of Embodiment 3. In the breather filter of Embodiment 1, the handle portion 8 is formed by extending the end of the protective film 5 outward from the end of the second adhesive layer 4 , but in Embodiment 3, as Figure 10 As shown, the handle portion 8 may be formed by providing an extension member 5 b different from the protective film 5 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

Disclosed is a ventilation filter which has a shape that is suitable for preventing separation of a first adhesive layer when a protective film is separated from a second adhesive layer. Specifically disclosed is a ventilation filter which comprises: a first adhesive layer (2) that is formed on a base sheet (1); a ventilation film (3) that is formed on the first adhesive layer (2); a second adhesive layer (4) that is formed on the ventilation film (3); and a protective film (5) that is formed on the second adhesive layer (4). The first adhesive layer (2) and the second adhesive layer (4) respectively have an opening, and the protective film (5) is provided with an incision (7) that extends from the outer periphery of the protective film (5) to a position that corresponds to the opening of the second adhesive layer (4).

Description

technical field [0001] The present invention relates to a vent filter provided with a vent membrane used in electronic equipment requiring water resistance and dust resistance, such as electronic devices with acoustic functions, a method for fixing the vent filter, and a method for manufacturing electric devices. Background technique [0002] In electronic equipment such as cellular phones, small radios, walkie-talkies, portable music players, notebook computers, headphones, earphones, outdoor loudspeakers, digital cameras, etc. A sound hole is provided on the frame body, and the sound hole is used for passing sound from the inside of the frame body to the outside, and from the outside to the inside. A waterproof filter (breather membrane) is attached to the sound hole for one purpose of preventing water from entering the electronic device. Furthermore, for example, an optical sensor is provided with a breathable membrane mainly for the purpose of dust prevention and elimin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/10B32B3/10H04R1/00
CPCB32B7/14B01D2279/35B32B5/18B32B7/06B32B27/08B32B27/30B32B27/32B32B27/36H04R1/023
Inventor 大杉伸行
Owner JAPAN GORE TEX INC