WO2019100222A1

WO2019100222A1 - Ingress protection component, terminal, and method for manufacturing ingress protection terminal

Info

Publication number: WO2019100222A1
Application number: PCT/CN2017/112207
Authority: WO
Inventors: 李军
Original assignee: 华为技术有限公司
Priority date: 2017-11-21
Filing date: 2017-11-21
Publication date: 2019-05-31
Also published as: CN111373722A

Abstract

Disclosed in the embodiments of the present invention are a method for manufacturing an integrated double-sided adhesive tape, an ingress protection component, and a terminal. The ingress protection component, according to the embodiments of the present invention, comprises: a double-sided adhesive tape and a frame body; the double-sided adhesive tape being bonded to the surface of the frame body, the double-sided adhesive tape having a closed structure annularly arranged on the surface of the frame body, the outer contour of the double-sided adhesive tape matching the outer contour of the surface of the frame body; the double-sided adhesive tape comprising a first edge and a second edge, the first edge and the second edge overlapping each other, the viscidity of the overlapping portion of the first edge and the second edge being activated by means of an external excitation source, such that the first edge and the second edge are bonded to each other and fused into an integrated structure. The ingress protection component in the embodiments of the present invention has an integrated double-sided adhesive tape which is seamlessly connected, and can ensure seamless adhesion between the frame body and the housing of a mobile phone, further improving the ingress protection performance of the mobile phone.

Description

Waterproof component, terminal and preparation method of waterproof terminal

Technical field

The present application relates to the technical field of mobile terminals, and in particular, to a waterproof component, a terminal, and a method for preparing the waterproof terminal.

Background technique

End products have increasingly higher requirements for waterproofing, and end products with a protection level of 7 (Ingress Protection X Seven, IPX7) are favored by consumers. Double-sided tape has high bonding reliability, airtightness and good reworkability, so it is widely used in the end products of IPX7.

At present, when double-sided adhesive is used to attach the terminal casing, a circular double-sided adhesive can be formed on the surface of the casing by seamless splicing. However, seamless splicing requires separate cutting of the double-layered colloid to remove useless parts, and the cutting line There are still small gaps, it is difficult to achieve complete sealing, the consistency of mass production of products is not easy to guarantee; in the existing way, the gaps that still exist can be dispensed to increase the sealing performance, but the dispensing scheme has been increased. Process complexity increases costs.

Summary of the invention

Embodiments of the present invention provide a waterproof component, a terminal, and a preparation method of the waterproof terminal, which can achieve waterproof performance of IPX7 or higher, and the process is easy to implement.

In a first aspect, an embodiment of the present invention provides a waterproof assembly, including: a double-sided tape, a frame; the double-sided tape is bonded to the surface of the frame, and the double-sided tape has a ring disposed on the frame a closed structure of the surface, the outer contour of the double-sided tape is matched with the contour of the surface of the frame; the double-sided tape comprises a first side and a second side, the first side and the second side Interspersing with each other, the adhesion of the mutually overlapping portions of the first side and the second side is activated by an external excitation source such that the first side and the second side are bonded to each other and fused into a unitary structure.

By merging the rubber faces of the first side and the second side, the first side and the second side are integrated into a unitary structure, thereby forming a seamlessly connected integral double-sided tape having a special shape, when the integrated type is When the double-sided tape is bonded to the surface of the mobile phone case, the waterproof performance can be improved.

Optionally, the thickness of the unitary structure is less than the total thickness of the first side and the second side after the overlap.

Optionally, the thickness of the unitary structure is equal to the thickness of the first side or equal to the thickness of the second side.

Since the rubber surface of the first side and the second side is fused, the thickness of the integrated structure is thinned, and the gap caused by the difference in the thickness of the glue layer is overcome, thereby further improving the waterproof performance of the mobile phone.

Optionally, the unitary structure has a different surface texture than the first side and the second side.

Optionally, the double-sided tape further includes a third side and a fourth side, and the first side, the second side, the third side, and the fourth side are overlapped in sequence, The fourth side overlaps the first side.

In order to meet the bonding requirements of the mobile phone frame, the four sides of the double-sided adhesive can be overlapped and integrated into one body, which not only saves materials, but also provides waterproof performance of the mobile phone.

Optionally, the double-sided tape is a heat sensitive adhesive, a photosensitive adhesive, a pressure sensitive adhesive or an electrosensitive adhesive.

Optionally, the external excitation source is heating, lighting, pressure, pressure or energization.

In a second aspect, the terminal of the embodiment of the present invention includes a housing, and the waterproof assembly of the first aspect; the housing is disposed on a side of the double-sided tape facing away from the frame and The glue is bonded.

Since the double-sided tape of the waterproof component has a flat and seamless integrated structure, the waterproof performance of the terminal is greatly improved. Rise.

In a third aspect, the method for preparing the integrated double-sided tape of the embodiment of the present invention comprises: facing a first side of the first strip of double-sided tape with a second side of the second strip of double-sided tape; a release film of a first edge of one side and a release film of a second edge of the second face; a portion of the first edge from which the release film is removed and a portion of the second edge from which the release film is removed from each other Lagging; activating the adhesion of the mutually overlapping first and second edges by an external excitation source such that said first edge of said first strip of double-sided tape and said second strip of double-sided tape The second edges are bonded to each other and merged into a unitary structure.

According to a fourth aspect, a method for manufacturing a waterproof terminal according to an embodiment of the present invention includes: providing a frame; and tearing off the integral double-sided tape prepared by the method according to any one of the third aspects of the present invention, opposite to the frame a one-side release film; the integral double-sided adhesive is adhered to the surface of the frame, the integral double-sided adhesive profile is matched with the outline of the frame; a housing is provided; a side release film of the integral double-sided tape that faces away from the frame; and the shell and the frame are bonded by the integral double-sided tape.

In a fifth aspect, a method for fabricating a waterproof assembly according to an embodiment of the present invention includes providing a frame, the frame surface including a first edge, a second edge, a third edge, and a fourth edge; a second strip of double-sided tape, a third strip of double-sided tape, and a fourth strip of double-sided tape respectively adhered to the first edge, the second edge, and the third surface of the frame surface An edge and the fourth edge; the first strip of double-sided tape, the second strip of double-sided tape, the third strip of double-sided tape, and the fourth strip of double-sided tape Interacting with each other; activating the first strip of double-sided tape, the second strip of double-sided tape, the third strip of double-sided tape, and the fourth strip of double-sided tape by an external excitation source The adhesiveness of the first and second overlapping portions is such that the first strip of double-sided tape, the second strip of double-sided tape, the third strip of double-sided tape, and the fourth strip of double-sided tape The mutually overlapping portions are bonded to each other and integrated into a one-sided double-sided tape.

With respect to any of the aforementioned third to fifth aspects,

In the embodiment of the invention, the waterproof component in the embodiment of the invention has a seamless double-sided adhesive, which can ensure the seamless bonding between the mobile phone frame and the outer casing, thereby improving the waterproof performance of the mobile phone.

DRAWINGS

1 is a schematic view showing a bonding manner of a double-sided tape in the prior art;

2 is a schematic view showing another manner of bonding a double-sided tape in the prior art;

3 is a flow chart of a method for preparing an integrated double-sided tape according to an embodiment of the present invention;

4 is a schematic view showing a preparation process of an integrated double-sided tape according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of changes in a connection portion after being excited by an external excitation source according to an embodiment of the present invention; FIG.

6 is a schematic structural view of an integrated double-sided tape according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a waterproof component according to an embodiment of the present invention;

FIG. 8 is a schematic diagram of a process for preparing a waterproof terminal according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

When the embodiments of the present invention refer to ordinal numbers such as "first", "second" and the like, unless it is intended to express the order according to the context, it should be understood that it only serves as a distinction.

The double-sided adhesive refers to a thin layer of colloid having a double-sided adhesive, and a release paper is disposed on both sides thereof. When the release paper is peeled off, the thin layer of the adhesive on the side of the release release paper can be bonded to the surface of the object. Conventionally manufactured double-sided tapes can be of any width and strip shape. For the case where there is a special shape for bonding, it is necessary to cut the conventionally manufactured double-sided tape. For example, when the frame and the casing of the mobile phone need to be bonded, the double-sided tape needs to be stuck around the frame to form a closed-loop structure, and in the middle of the closed structure, the double-sided tape needs to be removed; in this case, two methods can be adopted. First, as shown in FIG. 1 , the entire double-sided tape that meets the requirements of the size of the mobile phone frame is hollowed out, that is, the closed annular double-sided tape 12 is left, and the unnecessary portion 11 in the middle is removed. The waste of a large amount of material is generated; the second method is that, as shown in FIG. 2, the double-sided tape is cut and pasted on the periphery of the frame of the mobile phone, and the two adjacent double-sided adhesives are respectively adhered There is a gap 13 between them, and the existence of the gap obviously makes the waterproof performance of the mobile phone decrease. In this case, it is usually necessary to perform the dispensing treatment at the gap 13 to ensure the waterproof performance of the mobile phone, and the glue is required to ensure the waterproof performance of the mobile phone. , adding process complexity.

The embodiment of the invention provides an integrated double-sided tape, which can be applied to any occasion requiring a non-linear double-sided tape. For example, when the shape and size of the directly processed double-sided tape cannot meet special needs, the integral double-sided tape prepared by the embodiment of the present invention can meet the requirements of a specific shape and size.

The embodiment of the present invention is described by taking an example of bonding between a frame and a casing used in a terminal, for example, a mobile phone.

Embodiment 1

The embodiment of the invention provides a method for preparing an integrated double-sided tape. By the preparation method of the embodiment, a closed-loop integrated double-sided tape can be prepared, and the integrated double-sided tape is used for bonding in the terminal. The lower case can significantly improve the waterproof performance of the terminal.

3 is a flow chart of a method according to an embodiment of the present invention. As shown in FIG. 3, the method for preparing the integrated double-sided tape of the embodiment of the present invention comprises the following steps:

101. The release film that removes the first edge of the first side of the first strip of double-sided tape and the release film of the second edge of the second side of the second strip of double-sided tape;

102, the portion of the first edge removing release film and the portion of the second edge removal release film overlap each other to form a first connection portion;

103. Activate an adhesive at the first edge and the second edge of the first connecting portion by an external excitation source, so that the first edge and the second edge are bonded to each other and merged into a unitary structure .

4 is a schematic view showing a preparation process of an integrated double-sided tape according to an embodiment of the present invention. As shown in Figure 4, according to the phone frame The size of the body is cut into the first strip of double-sided tape 1 and the second strip of double-sided tape 2. The length of the first strip of double-sided tape is less than or equal to the width of the mobile phone, the length of the first strip of double-sided tape is preferably equal to the width of the phone, the length of the second strip of double-sided tape is less than or equal to the length of the phone, and the second strip of double-sided tape The length is preferably equal to the length of the mobile phone; the width of the first strip of double-sided tape and the second strip of double-sided tape can be set according to actual needs, for example, less than or equal to 3 mm, preferably 2 mm.

After the double-sided tape is cut according to the required size, the first strip of double-sided tape 1 and the second strip of double-sided tape 2 are removed to prepare a lapped edge release film, and the first strip of double-sided tape 1 and The second strip-shaped double-sided tape 2 removes a portion of the release film to form a first joint portion 3. Since the two double-sided tapes remove the release film, the two double-sided tapes are bonded together according to the positional relationship when overlapping each other to form the first connecting portion 3. At this time, the thickness of the first connecting portion 3 is the total thickness of the first strip-shaped double-sided tape 1 and the second strip-shaped double-sided tape 2.

At this time, the adhesiveness of the first connecting portion 3 is activated by the external excitation source, so that the first strip-shaped double-sided tape 1 and the second strip-shaped double-sided tape 2 located at the first connecting portion 3 are integrated into one body to form the unitary structure 4.

In the embodiment of the present invention, it may be any double-sided adhesive having a property to be activated, such as a heat sensitive adhesive, a photosensitive adhesive, a pressure sensitive adhesive or an electrosensitive adhesive, and correspondingly, may be heated, illuminated, pressed, pressed, or The way the power is applied activates the stickiness of the double-sided tape.

The term "fusion" as used herein means that the rubber surface material of the first strip-shaped double-sided tape 1 in the first connecting portion 3 and the rubber surface material of the second strip-shaped double-sided tape 2 are mutually infiltrated, and the first connecting portion 3 The process of thinning the thickness, as shown in FIG. 5, is a process in which the first connecting portion 3 receives excitation from an external excitation source, and the rubber-surface materials of the two-shaped double-sided adhesive are permeable to each other to form an integrated structure 4. At this time, since the rubber faces of the two-shaped double-sided tape penetrate each other, the original texture is destroyed, and a new texture structure is formed at the integral structure 4, as shown by reference numeral 4 in FIGS. 4 and 5.

It can be understood by those skilled in the art that since the first strip of double-sided tape 1 and the second strip of double-sided tape 2 are double-sided tapes produced by the same process, the textures of the two are the same in the length direction, when the two are as When the direction shown in FIG. 5 is overlapped at the edge, the textures of the two are perpendicular to each other. When the two are subjected to, for example, heating excitation, the texture of the integrated structure 4 is a fusion of the two textures, and the first strip of double-sided tape 1 The texture of the second strip of double-sided tape 2 is different from that of the second strip. The texture of the unitary structure 4 is not limited herein, and may be based on the first strip of double-sided tape 1 and the second strip of double-sided tape 2 The texture changes.

It should be noted that the texture of the integrated structure excited by the excitation source is different from the texture of the first strip of double-sided tape 1 and the second strip of double-sided tape 2, which may be invisible to the naked eye and requires microscopic observation. It can be directly seen by the naked eye. Whether it can be directly distinguished by the naked eye is related to the structure of the double-sided tape itself, and is not limited herein.

At this time, the first strip of double-sided tape 1 and the second strip of double-sided tape 2 are completely fused together, and the thickness of the unitary structure 4 is smaller than that of the first strip of double-sided tape 1 and the second strip of double-sided tape 2 The total thickness of the joint. Wherein, when the thickness of the first strip of double-sided tape 1 is equal to the thickness of the second strip of double-sided tape 2, the thickness of the unitary structure 4 is preferably equal to the first strip of double-sided tape 1 and the second strip of double-sided tape The thickness of the glue 2; when the thickness of the first strip of double-sided tape 1 is not equal to the thickness of the second strip of double-sided tape 2, the thickness of the unitary structure 4 is preferably equal to the thickness of the first strip of double-sided tape, or The thickness of the second strip of double-sided tape 2.

Through the above method of the embodiment of the present invention, an integrated double-sided tape having a special shape can be prepared, and the user can prepare a one-piece double-sided tape of a desired shape by using the method provided by the embodiment of the present invention according to actual needs.

At present, the waterproof requirements of the terminal are increasing day by day, and the requirements for the waterproof level of IPX7 or above are everywhere. Taking the mobile phone as an example, by using the preparation method of the embodiment of the invention, an integrated double-sided adhesive that matches the outer shape of the mobile phone frame body can be prepared, and the mobile phone frame body and the outer casing can be closely adhered.

For the integrated double-sided tape applied to the mobile phone frame, as shown in FIG. 6, the embodiment of the present invention further includes a third strip-shaped double-sided tape 5 and a fourth strip-shaped double-sided tape 6.

According to the combination manner of the first strip-shaped double-sided tape 1 and the second strip-shaped double-sided tape 2, the edge of the third strip-shaped double-sided tape 5 is sequentially overlapped on the edge of the second strip-shaped double-sided tape 2, and The mutually overlapping portions of the second strip-shaped double-sided tape 2 and the third strip-shaped double-sided tape 5 are activated by an external excitation source, so that the third strip-shaped double-sided tape 5 and the first strip-shaped double-sided tape 1 and the second The strip-shaped double-sided tape 2 is combined into an integrated double-sided tape, and the fourth strip-shaped double-sided tape 6 and the third strip-shaped double-sided tape 5, and the edge of the first strip-shaped double-sided tape 1 are used in the same manner. They are connected to each other and stimulated by an external excitation source. Finally, the four double-sided adhesives are integrated into one, forming a closed integrated double-sided adhesive that matches the outline of the mobile phone.

Here, matching means that the length of the strip-shaped double-sided tape satisfies the bonding requirement in terms of the length of the frame or the width of the frame according to the bonding requirements of the frame of the mobile phone, and the width of the strip-shaped double-sided tape satisfies the overall demand of the mobile phone, and does not affect The internal structure of the mobile phone.

The integrated double-sided tape prepared according to the above method further provides a waterproof component as shown in FIG. 7 , which comprises the integrated double-sided tape prepared by the above method and the frame 0.

After the preparation of the integrated double-sided tape is completed, the first release film of the first surface of the integrated double-sided tape is peeled off, and the integrated double-sided tape is pasted on the surface of the frame 0 of the mobile phone, and then peeled off A second release film having a second surface opposite the surface bonds the outer casing of the mobile phone (not shown) to the casing 0 of the mobile phone.

Since the integrated double-sided adhesive is tightly integrated into the whole body through the external excitation, there is no gap, and the adhesion between the mobile phone frame and the outer casing can be ensured without gaps, thereby improving the waterproof performance.

In addition to the method that the integrated double-sided tape can be successfully prepared and then affixed to the surface of the mobile phone frame, and then the outer casing of the mobile phone is bonded to the frame to prepare a waterproof terminal, the embodiment of the present invention further provides a method for preparing the waterproof terminal. The integrated double-sided tape is directly prepared on the frame of the mobile phone, and then the outer casing of the mobile phone is bonded to the frame of the mobile phone to prepare a waterproof terminal.

Embodiment 2

The mobile phone frame 0 is provided, and the frame body 0 can be a front case, a middle frame, and the like of the mobile phone, and a part of the mobile phone structure needs to be bonded to the outer cover.

The first strip-shaped double-sided tape 1, the second strip-shaped double-sided tape 2, the third strip-shaped double-sided tape 5 and the fourth strip-shaped double-sided tape 6 which match the shape of the frame of the mobile phone and which meet the requirements are cut.

As shown in FIG. 8, the first strip of double-sided tape is sequentially pasted on the upper end edge of the frame 0, and then the second strip of double-sided tape 2 is pasted on the right end edge of the frame 0, for the first strip double The portion 3 of the top rubber 1 and the second strip-shaped double-sided tape 2 overlapping each other is excited by an external excitation source to form an integral structure 4.

In the same manner, the third strip of double-sided tape 5 is sequentially pasted on the lower end edge of the frame 0 and energized, and the fourth strip of double-sided tape 6 is pasted on the left end edge of the frame 0 and energized. Thereby a seamless integral double-sided tape is bonded to the surface of the frame 0.

Further, a casing (not shown) is attached to the surface of the casing 0 on which the integral double-sided tape is formed, so that the casing 0 is seamlessly bonded to the casing. Since the integrated double-sided tape is a seamless closed structure matching the outline of the mobile phone frame 0, when the frame 0 is bonded to the casing, the water vapor, water droplets or water flow is blocked into the path inside the mobile phone, thereby improving waterproofing. grade.

In addition, since the overlapping portions of the two double-sided adhesives are subjected to the excitation treatment, the mutually overlapping portions are formed into an integral structure, and the thickness is thinned, which is equivalent to the thickness of the single-layer double-sided adhesive, and is not due to the connection portion. The difference in thickness causes a gap between the frame 0 and the frame, which further ensures seamless and close fit of the frame 0 and the casing, and improves Waterproof performance.

In addition, in the embodiment of the present invention, the first strip-shaped double-sided tape 1, the second strip-shaped double-sided tape 2, the third strip-shaped double-sided tape 5, and the fourth strip-shaped double-sided tape 6 may be further disposed. Pasting on the surface of the frame 0 while energizing the four connection portions by the external excitation source, so that the four connection portions respectively form the first integral structure 4, the second integral structure 7, the third integral structure 8 and the Four integrated structure 9.

In the embodiment of the present invention, the first strip-shaped double-sided tape 1, the second strip-shaped double-sided tape 2, the third strip-shaped double-sided tape 5 and the fourth strip-shaped double-sided tape 6 are sequentially bonded and sequentially activated. After the four double-sided adhesives are first bonded, the order of activating the four integrated structures is not limited. As long as the four connecting portions are received by the excitation of the external excitation source to form four integrated structures, all of the embodiments are implemented in the present invention. The scope of protection of the example.

Embodiment 3

Based on the integrated double-sided tape provided by the foregoing embodiment, the embodiment of the present invention further provides a waterproof component, as shown in FIG. 7 .

The waterproof component is applied to the terminal, comprising a double-sided tape and a frame, the double-sided tape is adhered to the surface of the frame, and the double-sided tape has a closed structure disposed on the surface of the frame, the double The contour of the surface rubber matches the contour of the surface of the frame;

The double-sided tape comprises a first side and a second side, wherein the first side and the second side overlap each other, and the mutual overlapping of the first side and the second side is activated by an external excitation source The portion is viscous such that the first side and the second side are bonded to each other and fused into a unitary structure.

Wherein the integral structure has a different surface texture than the first side and the second side. The thickness of the unitary structure is less than the total thickness of the first side and the second side after the overlap. Preferably, the thickness of the unitary structure is equal to the thickness of the first side or equal to the thickness of the second side.

Further, the double-sided tape further includes a third side and a fourth side, and the first side, the second side, the third side, and the fourth side are overlapped in sequence, the first The four sides overlap the first side.

Wherein, the double-sided adhesive is a thermal adhesive, a photosensitive adhesive, a pressure sensitive adhesive or an electrosensitive adhesive; correspondingly, the external excitation source is heating, light, pressure, pressure or energization.

The embodiment of the invention further provides a terminal, including a casing, and the waterproof component. The outer casing and the frame are bonded by an integral double-sided tape to ensure the waterproof performance of the terminal.

The preparation method, the waterproof component and the terminal of the integrated double-sided tape provided by the embodiments of the present application are described in detail above. The principles and embodiments of the present application are described in the specific examples. The description of the above embodiments is only The method for understanding the present application and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope, in summary, this The contents of the description should not be construed as limiting the application.

In summary, the above description is only a preferred embodiment of the technical solution of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A waterproof assembly, comprising: a double-sided tape and a frame;

The double-sided tape is adhered to the surface of the frame body, and the double-sided tape has a closed structure disposed on the surface of the frame body, and the outer shape of the double-sided tape is opposite to the contour of the surface of the frame body. match;

The double-sided tape comprises a first side and a second side, wherein the first side and the second side overlap each other, and the mutual overlapping of the first side and the second side is activated by an external excitation source The portion is viscous such that the first side and the second side are bonded to each other and fused into a unitary structure.
The waterproof assembly of claim 1 wherein said unitary structure has a thickness that is less than a total thickness of said first and second sides after lap joint.
The waterproof assembly of claim 2 wherein said integral structure has a thickness equal to a thickness of said first side or a thickness of said second side.
A waterproof assembly according to any one of claims 1 to 3, wherein the unitary structure has a different surface texture than the first side and the second side.
The waterproof assembly according to any one of claims 1 to 4, wherein the double-sided tape further comprises a third side and a fourth side, the first side, the second side, and the third side The edge overlaps with the first end of the fourth side, and the fourth side overlaps with the first side.
The waterproof assembly according to any one of claims 1 to 5, wherein the double-sided tape is a heat sensitive adhesive, a photosensitive adhesive, a pressure sensitive adhesive or an electrosensitive adhesive.
A waterproof assembly according to any one of claims 1 to 6, wherein the external excitation source is heat, light, pressure, pressure or energization.
A terminal comprising a housing and the waterproof assembly of any of claims 1-7;

The outer casing is disposed on a side of the double-sided tape facing away from the frame and bonded to the double-sided tape.
A method for preparing an integrated double-sided tape, characterized in that:

The first side of the first strip of double-sided tape is opposite to the second side of the second strip of double-sided tape;

Removing the release film of the first edge of the first face and the release film of the second edge of the second face;

Portion of the portion of the first edge removing release film and the portion of the second edge removing release film to each other;

Activating the adhesion of the mutually overlapping first and second edges by an external excitation source such that the first edge of the first strip of double-sided tape and the second edge of the second strip of double-sided tape Bonded to each other and integrated into one structure.
The method of claim 9 wherein said unitary structure has a thickness that is less than a total thickness of said first and second sides after lap joint.
The method according to claim 9 or 10, wherein the thickness of the unitary structure is equal to the thickness of the first strip of double-sided tape or equal to the thickness of the second strip of double-sided tape.
A method according to any one of claims 9-11, wherein the unitary structure has a different surface texture than the first strip of double sided tape and the second strip of double sided tape.
The method according to any one of claims 9 to 12, wherein the double-sided tape is a heat sensitive adhesive, a photosensitive adhesive, a pressure sensitive adhesive or an electrosensitive adhesive.
A method according to any one of claims 9-12, wherein the external excitation source is heat, light, pressure, pressure or energization.
A method according to any of claims 9-14, characterized in that:

The integrated double-sided tape further includes a third strip-shaped double-sided tape and a fourth strip-shaped double-sided tape, the first strip-shaped double-sided tape, the second strip-shaped double-sided tape, and the third strip The double-sided adhesive tape and the fourth strip-shaped double-sided adhesive are overlapped one after another, and the fourth strip-shaped double-sided adhesive is overlapped with the first strip-shaped double-sided adhesive;

The adhesive of the mutually overlapping portions is activated by the external excitation source to form a closed integral double-sided tape.
A method for preparing a waterproof terminal, characterized in that:

Providing a frame;

A side release film opposite to the frame body of the one-piece double-sided tape prepared by the method according to any one of claims 9-15;

Bonding the integral double-sided tape to the surface of the frame, and the integral double-sided tape outline is matched with the outline of the frame;

Providing a housing;

Removing the release film of the integral double-sided tape from the side of the frame;

The housing and the frame are bonded by the integral double-sided tape.
A method for manufacturing a waterproof component, characterized in that:

Providing a frame, the frame surface including a first edge, a second edge, a third edge, and a fourth edge;

Pasting a first strip of double-sided tape, a second strip of double-sided tape, a third strip of double-sided tape, and a fourth strip of double-sided tape on the first edge of the frame surface, a second edge, the third edge, and the fourth edge;

The first strip-shaped double-sided tape, the second strip-shaped double-sided tape, the third strip-shaped double-sided tape, and the fourth strip-shaped double-sided tape are overlapped with each other;

Activating the first strip-shaped double-sided tape, the second strip-shaped double-sided tape, the third strip-shaped double-sided tape, and the fourth strip-shaped double-sided glue to overlap each other by an external excitation source The adhesion of the portion such that the first strip of double-sided tape, the second strip of double-sided tape, the third strip of double-sided tape, and the fourth strip of double-sided tape overlap each other The parts are bonded to each other and integrated into a one-sided double-sided tape.