Waterproof, sound-permeable and breathable membrane assembly and production equipment thereof

Abstract

The utility model relates to a waterproof, sound-permeable and breathable membrane assembly and production equipment thereof. An upper-layer circular-ring-shaped pressing plate is provided with an upper breathable membrane mounting groove and a first connecting hole located in the outer side of the upper breathable membrane mounting groove; an upper breathable film is arranged in the upper breathable film mounting groove; the lower-layer annular pressing plate is provided with a lower breathable film mounting groove and a second connecting hole located in the outer side of the lower breathable film mounting groove. A lower breathable film is arranged in the lower breathable film mounting groove; during connection, the upper-layer circular-ring-shaped pressing plate is pressed on the lower-layer circular-ring-shaped pressing plate, and the top surface of the lower breathable film is attached to the bottom surface of the upper breathable film; the connecting piece penetrates through the first connecting hole and the second connecting hole to connect the upper-layer annular pressing plate and the lower-layer annular pressing plate, the operation of pasting a double-faced adhesive tape is not needed in the connecting process, separation is avoided, the manufacturing process of the waterproof sound-permeable breathable membrane assembly is accelerated, and production is convenient.

Description

Technical Field

[0001] The present application relates to the technical field of waterproof breathable membrane assembly production, and in particular to a waterproof sound-permeable breathable membrane assembly and production equipment thereof. Background Art

[0002] EPTFE waterproof breathable membrane material has good dust and water resistance, pressure relief ventilation, microporous exhaust, high and low temperature resistance, corrosion resistance, heat dissipation and cooling characteristics. It is mainly used for the sound transmission hole of the speaker. Air can quickly and unimpededly enter and exit. Moreover, due to the microporous nature of the EPTFE waterproof sound-permeable membrane material itself, sound can also be transmitted well, and the sound loss is less than 2dB.

[0003] The waterproof and breathable membranes generally used are organic materials. There are many micron-level holes on the membrane. Sound can pass through these holes smoothly, but water cannot pass through these holes due to tension, thus achieving the waterproof function on the sound propagation path. However, due to process reasons, in order to make the holes on the membrane small enough, this layer of membrane must be made very thin. Organic materials themselves are also relatively soft and very easy to damage. They will be damaged if touched by hands during installation. In actual applications, special protection needs to be designed.

[0004] In addition, the EPTFE membrane assembly in the prior art is usually composed of an EPTFE membrane, a protective layer and a cover film, and double-sided tape is adhered on both sides of the EPTFE membrane. When removing the process material, the base paper, the cover film and other operations during the production process, the EPTFE membrane between the waterproof adhesives is prone to stratification. Therefore, this structure is not convenient for production and it is difficult to ensure the quality of the waterproof and breathable membrane assembly. Utility Model Content

[0005] The embodiments of the present application provide a waterproof, sound-permeable, breathable membrane assembly and a production device thereof to solve the problem in the related art that the EPTFE membrane assembly is usually composed of an EPTFE membrane, a protective layer and a cover membrane, and double-sided tape is adhered on both sides of the EPTFE membrane. Such a structure makes production inconvenient and it is difficult to ensure the quality of the waterproof and breathable membrane assembly.

[0006] In a first aspect, a waterproof, sound-permeable, breathable membrane assembly is provided, comprising:

[0007] The upper circular pressure plate has an upper breathable membrane installation groove on its bottom surface and a first connecting hole located outside the upper breathable membrane installation groove; an upper breathable membrane is arranged in the upper breathable membrane installation groove;

[0008] The lower annular pressing plate has a lower breathable membrane installation groove on its top surface and a second connecting hole located outside the lower breathable membrane installation groove; a lower breathable membrane is arranged in the lower breathable membrane installation groove; the top surface of the lower breathable membrane is in contact with the bottom surface of the upper breathable membrane;

[0009] A connecting piece is provided with the first connecting hole and the second connecting hole to connect the upper annular pressing plate and the lower annular pressing plate.

[0010] In some embodiments, the connecting member includes a metal column and a hot melt adhesive filling portion;

[0011] The first connection hole and the second connection hole both include a connected vertical circular hole portion and a hot melt placement portion; the metal column passes through the vertical circular hole portions of the first connection hole and the second connection hole, and the hot melt adhesive filling portion is located in the hot melt placement portions of the first connection hole and the second connection hole.

[0012] In some embodiments, the number of the first connection holes is two, and the shape of the hot melt placement portion is arrow-shaped; the number of the second connection holes is two, and the shape of the hot melt placement portion is arrow-shaped.

[0013] In some embodiments, a negative pressure adsorption area is provided on the top surface of the upper annular pressure plate and located outside the upper breathable membrane installation groove.

[0014] In some embodiments, in the vertical direction, the projection of the air holes on the upper air-permeable membrane on the lower air-permeable membrane partially overlaps with the air holes on the lower air-permeable membrane.

[0015] In some embodiments, a reinforcing partition is provided in the internal passage of the upper annular pressure plate and the lower annular pressure plate, and a leakage hole is provided on the reinforcing partition.

[0016] In a second aspect, a production device for a waterproof, sound-permeable, breathable membrane assembly is provided, comprising:

[0017] A lower placement seat, the top plane of which is provided with a first placement groove;

[0018] The pressing seat has a second placement groove at the bottom, a glue injection port corresponding to the first connecting hole, and a glue injection gun inside the glue injection port; the pressing seat is also provided with a suction port, and a negative pressure suction disk is provided inside the suction port.

[0019] In some embodiments, a lifting and pressing member is provided on the top of the pressing seat.

[0020] The beneficial effects of the technical solution provided by this application include:

[0021] The embodiment of the present application provides a waterproof, sound-permeable, breathable membrane assembly and a production device thereof. Since the upper annular pressure plate has an upper breathable membrane mounting groove and a first connecting hole located outside the upper breathable membrane mounting groove; the upper breathable membrane is arranged in the upper breathable membrane mounting groove; the lower annular pressure plate has a lower breathable membrane mounting groove and a second connecting hole located outside the lower breathable membrane mounting groove; the lower breathable membrane is arranged in the lower breathable membrane mounting groove; when connected, the upper annular pressure plate is pressed onto the lower annular pressure plate, and the top surface of the lower breathable membrane is fitted with the bottom surface of the upper breathable membrane; the connecting member is penetrated with the first connecting hole and the second connecting hole to connect the upper annular pressure plate and the lower annular pressure plate. The above connection process does not require the operation of sticking double-sided tape and will not separate, which speeds up the manufacturing process of the waterproof, sound-permeable, breathable membrane assembly and facilitates production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 A schematic top view of a waterproof, sound-permeable, breathable membrane assembly without glue injection provided in an embodiment of the present application;

[0024] Figure 2 A schematic top view of a waterproof, sound-permeable, breathable membrane assembly after glue injection provided in an embodiment of the present application;

[0025] Figure 3 A schematic diagram of the structure of the upper annular pressing plate and the lower annular pressing plate provided in an embodiment of the present application;

[0026] Figure 4 A schematic diagram of the internal structure of the upper annular pressing plate and the lower annular pressing plate provided in an embodiment of the present application after being connected by glue injection;

[0027] Figure 5 A schematic diagram of the structure of the upper breathable membrane and the lower breathable membrane provided in the embodiment of the present application;

[0028] Figure 6 A schematic diagram of the production equipment of the waterproof, sound-permeable, breathable membrane assembly provided in an embodiment of the present application.

[0029] In the figure: 1. upper annular pressure plate; 2. upper breathable membrane mounting groove; 3. first connecting hole; 4. lower annular pressure plate; 5. lower breathable membrane mounting groove; 6. second connecting hole; 7. connecting piece; 8. negative pressure adsorption area; 9. upper breathable membrane; 10. lower breathable membrane; 11. lower placement seat; 12. first placement groove; 13. pressing seat; 14. second placement groove; 15. glue injection gun; 16. negative pressure adsorption disk; 17. lifting and lowering pressing piece; 18. internal channel; 19. reinforcing partition; 20. leakage hole. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0031] The embodiments of the present application provide a waterproof, sound-permeable, breathable membrane assembly and a production device thereof to solve the problem in the related art that the EPTFE membrane assembly is usually composed of an EPTFE membrane, a protective layer and a cover membrane, and double-sided tape is adhered on both sides of the EPTFE membrane. Such a structure makes production inconvenient and it is difficult to ensure the quality of the waterproof and breathable membrane assembly.

[0032] See also Figure 1-Figure 6 , a waterproof, sound-permeable, breathable membrane assembly, comprising:

[0033] The upper circular pressure plate 1 has an upper breathable membrane installation groove 2 on its bottom surface and a first connecting hole 3 located outside the upper breathable membrane installation groove 2; an upper breathable membrane 9 is arranged in the upper breathable membrane installation groove 2;

[0034] The lower annular pressing plate 4 has a lower breathable membrane installation groove 5 on its top surface, and a second connecting hole 6 located in the lower breathable membrane installation groove 5 is provided thereon; a lower breathable membrane 10 is provided in the lower breathable membrane installation groove 5; the top surface of the lower breathable membrane 10 is in contact with the bottom surface of the upper breathable membrane 9;

[0035] The connecting member 7 is provided with a first connecting hole 3 and a second connecting hole 6 to connect the upper annular pressing plate 1 and the lower annular pressing plate 4 .

[0036] Since the upper annular pressing plate 1 has an upper breathable membrane mounting groove 2 and a first connecting hole 3 located outside the upper breathable membrane mounting groove 2; an upper breathable membrane 9 is arranged in the upper breathable membrane mounting groove 2; the lower annular pressing plate 4 has a lower breathable membrane mounting groove 5 and a second connecting hole 6 located outside the lower breathable membrane mounting groove 5; a lower breathable membrane 10 is arranged in the lower breathable membrane mounting groove 5; when connected, the upper annular pressing plate 1 is pressed onto the lower annular pressing plate 4, and the top surface of the lower breathable membrane 10 is in contact with the bottom surface of the upper breathable membrane 9; the connecting member 7 is penetrated with the first connecting hole 3 and the second connecting hole 6 to connect the upper annular pressing plate 1 and the lower annular pressing plate 4, the above connection process does not require the operation of sticking double-sided tape and will not separate, which speeds up the manufacturing process of the waterproof and sound-permeable breathable membrane assembly and facilitates production.

[0037] In some preferred embodiments, in order to facilitate connection, the specific structure of the connecting member 7 is arranged as follows:

[0038] The connecting member 7 includes a metal column and a hot melt adhesive filling portion;

[0039] The first connecting hole 3 and the second connecting hole 6 both include a connected vertical circular hole portion and a hot melt placement portion; the metal column passes through the vertical circular hole portions of the first connecting hole 3 and the second connecting hole 6, and the hot melt adhesive filling portion is located in the hot melt placement portions of the first connecting hole 3 and the second connecting hole 6.

[0040] The above initial connection is made by the metal column, which facilitates the positioning and docking of the upper annular pressing plate 1 and the lower annular pressing plate 4, and then the heated hot melt adhesive is passed into the hot melt placement part, solidified after cooling, and finally the connection is completed. The above pressing method speeds up the connection.

[0041] In addition, in order to distinguish the upper and lower layers, the number of the first connection holes 3 is two, and the shape of the hot melt placement part is an arrow shape; the number of the second connection holes 6 is two, and the shape of the hot melt placement part is an arrow shape. The arrow shape has a unique indication direction, which has the function of preventing reverse connection.

[0042] On the other hand, the negative pressure adsorption disk 16 adsorbs the upper annular pressure plate 1 , and a negative pressure adsorption area 8 is provided on the top surface of the upper annular pressure plate 1 and outside the upper breathable membrane installation groove 2 .

[0043] In some preferred embodiments, in the vertical direction, the projection of the air holes on the upper air-permeable membrane 9 on the lower air-permeable membrane 10 partially overlaps with the air holes on the lower air-permeable membrane 10. In this way, the waterproof breathable membrane can not only ensure the ventilation and sound quality, but also have a sufficient membrane thickness, thereby ensuring the strength of the waterproof breathable membrane to improve its waterproof depth.

[0044] In some preferred embodiments, in order to facilitate the upper breathable membrane 9 and the lower breathable membrane 10 to be located in the corresponding installation grooves, a reinforcing partition 19 is provided in the internal channel 18 of the upper annular pressure plate 1 and the lower annular pressure plate 4, and a leakage hole 20 is provided on the reinforcing partition 19; this facilitates laying.

[0045] The present application also proposes a production device for a waterproof, sound-permeable, breathable membrane assembly, which comprises:

[0046] A lower placement seat 11, a first placement groove 12 is provided on the top plane thereof;

[0047] The pressing seat 13 has a second placement groove 14 at the bottom, a glue injection port corresponding to the first connection hole 3, and a glue injection gun 15 in the glue injection port; the pressing seat 13 also has a suction port, and a negative pressure suction plate 16 in the suction port. A lifting pressing member 17 is provided at the top of the pressing seat 13.

[0048] When in use, the lower annular pressing plate 4 is placed in the first placement groove 12, the upper annular pressing plate 1 is adsorbed by the negative pressure adsorption disk 16, and then is located in the second placement groove 14, and then is pressed downward by the lifting and pressing member 17, and after pressing, the metal column is connected, and then glue is injected by the glue injection gun 15. The lifting and pressing member 17 is a common pressing device with a lifting function in the prior art.

[0049] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application 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 therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0050] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A waterproof, sound-permeable, breathable membrane assembly, characterized in that: It includes: An upper annular pressure plate (1) has an upper breathable membrane installation groove (2) on its bottom surface and a first connection hole (3) located outside the upper breathable membrane installation groove (2); an upper breathable membrane (9) is provided in the upper breathable membrane installation groove (2); The lower annular pressure plate (4) has a lower breathable membrane installation groove (5) on its top surface and a second connection hole (6) located outside the lower breathable membrane installation groove (5); a lower breathable membrane (10) is arranged in the lower breathable membrane installation groove (5); the top surface of the lower breathable membrane (10) and the bottom surface of the upper breathable membrane (9) are in contact with each other; A connecting member (7) is provided with the first connecting hole (3) and the second connecting hole (6) to connect the upper annular pressing plate (1) and the lower annular pressing plate (4).

2. The waterproof, sound-permeable, breathable membrane assembly according to claim 1, characterized in that: The connecting piece (7) comprises a metal column and a hot melt adhesive filling portion; The first connection hole (3) and the second connection hole (6) both comprise a vertical circular hole portion and a hot melt placement portion that are connected; the metal column passes through the vertical circular hole portions of the first connection hole (3) and the second connection hole (6), and the hot melt adhesive filling portion is located in the hot melt placement portions of the first connection hole (3) and the second connection hole (6).

3. The waterproof, sound-permeable, breathable membrane assembly according to claim 2, characterized in that: The number of the first connection holes (3) is two, and the shape of the hot melt placement portion is an arrow shape; the number of the second connection holes (6) is two, and the shape of the hot melt placement portion is an arrow shape.

4. The waterproof, sound-permeable, breathable membrane assembly according to claim 1, characterized in that: A negative pressure adsorption area (8) is provided on the top surface of the upper annular pressure plate (1) and outside the upper air-permeable membrane installation groove (2).

5. The waterproof, sound-permeable, breathable membrane assembly according to claim 1, characterized in that: In the vertical direction, the projection of the air holes on the upper air-permeable membrane (9) on the lower air-permeable membrane (10) partially overlaps with the air holes on the lower air-permeable membrane (10).

6. The waterproof, sound-permeable, breathable membrane assembly according to claim 1, characterized in that: A reinforcing partition (19) is provided in the internal passage (18) of the upper annular pressing plate (1) and the lower annular pressing plate (4), and a leak hole (20) is provided on the reinforcing partition (19).

7. A production device for a waterproof, sound-permeable, breathable membrane assembly according to any one of claims 1 to 6, characterized in that: It includes: A lower placement seat (11) having a first placement groove (12) on its top plane; The pressing seat (13) has a second placement groove (14) at its bottom, a glue injection port corresponding to the first connection hole (3) is provided on it, and a glue injection gun (15) is provided in the glue injection port; the pressing seat (13) is also provided with a suction port, and a negative pressure suction disk (16) is provided in the suction port.

8. The production equipment of the waterproof sound-permeable breathable membrane assembly according to claim 7, characterized in that: A lifting and lowering pressing member (17) is provided on the top of the pressing seat (13).

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