CN214361153U

CN214361153U - Adhesive structure

Info

Publication number: CN214361153U
Application number: CN202120154191.2U
Authority: CN
Inventors: 周涛
Original assignee: Lanto Electronic Ltd
Current assignee: Lanto Electronic Ltd; Kunshan Liantao Electronics Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-10-08
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a viscose structure, which belongs to the technical field of gluing and comprises a viscose layer; the first release film is adhered to one side of the adhesive layer, the size of the outer contour of the first release film is smaller than that of the outer contour of the adhesive layer in at least one preset direction, and the preset direction is one of multiple directions perpendicular to the thickness direction of the first release film; the second is in from the type membrane, the adhesion is in the first type membrane of leaving is kept away from one side of viscose layer, the second is covered completely from the type membrane the first type membrane of leaving, just the second is covered from the orthographic projection of type membrane on predetermineeing the plane the viscose layer is in predetermine the orthographic projection on the plane. The utility model discloses can reduce when tearing the membrane viscose layer edge by taking and cause the viscose layer probability that the fold appears, the reliability on reinforcing viscose layer improves the efficiency of spare part equipment in the electronic product.

Description

Adhesive structure

Technical Field

The utility model relates to an it is sticky technical field, especially, relate to a viscose structure.

Background

In the manufacturing process of electronic products, it is necessary to paste a back adhesive on the surface of the component to facilitate the assembly of the component.

In the prior art, a layer of protective film is adhered on the gum, after the gum with the outline larger than that of the adhered object is adhered on the adhered object, in order to improve the strength between the gum and the adhered object, a pressure maintaining tool is needed for maintaining pressure, specifically, the gum and the protective film are pressed by the pressure maintaining tool, and after pressure maintaining is completed, the protective film is torn off from the gum. However, the outer contours of the gum and the protective film are larger than the outer contour of the attached object, so that the lower part of the gum exceeding the edge of the attached object is suspended without support, and when the pressure maintaining is carried out on the gum, the gum cannot bear the force for pressure maintaining, so that when the protective film on the gum is torn off, the gum is easy to be brought up or folded, and the assembly efficiency of parts is affected.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a viscose structure can reduce the probability that the fold appears in the viscose layer, has improved the efficiency of spare part equipment in the electronic product.

As the conception, the utility model adopts the technical proposal that:

an adhesive construction comprising:

an adhesive layer;

the first release film is adhered to one side of the adhesive layer, the size of the outer contour of the first release film is smaller than that of the outer contour of the adhesive layer in at least one preset direction, and the preset direction is one of multiple directions perpendicular to the thickness direction of the first release film;

the second is in from the type membrane, the adhesion is in the first type membrane of leaving is kept away from one side of viscose layer, the second is covered completely from the type membrane the first type membrane of leaving, just the second is covered from the orthographic projection of type membrane on predetermineeing the plane the viscose layer is in predetermine the orthographic projection on the plane.

Optionally, still include first tearing portion, first tearing portion is fixed in the first edge from the type membrane, just first tearing portion by first type membrane extends to outside the viscose layer.

Optionally, a second tear portion is included, the second tear portion being fixed to an edge of the second release film.

Optionally, two first tearing parts are arranged, and the two first tearing parts are oppositely arranged at the edge of the first release film;

and/or, the second tears the portion of drawing and is equipped with two, two the second tears the portion of drawing set up relatively in the second is from the edge of type membrane.

Optionally, a first tearing hole is formed in the first tearing portion, and a second tearing hole is formed in the second tearing portion.

Optionally, the first release film is provided with a first through hole, and the second release film is provided with a second through hole corresponding to the first through hole.

Optionally, the cross-sectional shape of the first release film and the cross-sectional shape of the second release film are both circular, and the diameter of the first release film is smaller than that of the second release film.

Optionally, the viscose layer reaches it all is the rectangle form from the type membrane to be first, it is first less than from the length of type membrane the length on viscose layer, it is first equals from the width on type membrane the width on viscose layer.

Optionally, the length of the second release film is equal to the length of the adhesive layer, and the width of the second release film is equal to the width of the adhesive layer.

Optionally, still include the third from the type membrane, the third is from the type membrane adhesion in the opposite side of viscose layer, just the third is from the type membrane covering the viscose layer.

The utility model discloses following beneficial effect has at least:

in the viscose structure provided by the utility model, when the first release film and the second release film are torn off, the second release film is not directly contacted with the viscose layer because the second release film is attached to the first release film through the release agent of the release film, so that the second release film can be easily torn off without taking up the viscose layer, the outline of the first release film is smaller than the outline of the adhesive layer, the first release film can be completely supported on the attached object, the edge of the first release film can be completely supported by the attached object and is smaller than the viscose layer in the pressure maintaining process of the viscose layer, the viscose layer below the first release film can be completely supported and maintained to be completely attached with the attached object, therefore, when the first release film is torn off, the edge of the viscose layer can not be taken up by the first release film, and the probability that the edge of the viscose layer is taken up to cause wrinkles when the film is torn off can be reduced, the efficiency of spare part equipment in the electronic product has been improved.

Drawings

Fig. 1 is a schematic structural view of a glue structure according to an embodiment of the present invention;

fig. 2 is an exploded view of a glue structure according to an embodiment of the present invention;

fig. 3 is a top view of an adhesive structure according to an embodiment of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3 according to the present invention

Fig. 5 is an enlarged view of fig. 4 at B according to the present invention;

fig. 6 is a top view of an adhesive structure according to a second embodiment of the present invention;

fig. 7 is an exploded view of a second embodiment of the present invention;

fig. 8 is a schematic structural view of a glue structure provided in the second embodiment of the present invention;

fig. 9 is an enlarged view of the point C shown in fig. 8 according to the present invention.

In the figure:

1. an adhesive layer; 2. a first release film; 21. a first through hole; 3. a second release film; 31. a second through hole; 4. a first tear portion; 41. a first tear hole; 5. a second tear portion; 51. a second tear hole;

10. an adherend.

Detailed Description

In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

This embodiment provides a viscose structure, and viscose layer edge is taken up and causes the probability that the viscose layer fold appears when can reducing the dyestripping, has improved the efficiency of spare part equipment among the electronic product.

As shown in fig. 1 to 5, the adhesive structure may include an adhesive layer 1, a first release film 2 and a second release film 3.

Wherein, the first release film 2 is adhered to one side of the adhesive layer 1, and in at least one preset direction, the size of the outer contour of the first release film 2 is smaller than that of the outer contour of the adhesive layer 1. The preset direction is one of a plurality of directions perpendicular to the thickness direction of the first release film 2. The at least one predetermined direction may be understood as a predetermined direction or a plurality of predetermined directions. Illustratively, a direction perpendicular to the thickness direction of the first release film 2 is defined as a first direction, the first direction has a plurality of directions, and the plurality of first directions includes one or more predetermined directions, a dimension of the outer contour of the first release film 2 in the one or more predetermined directions is smaller than a dimension of the outer contour of the adhesive layer 1 in the one or more predetermined directions, and in the remaining directions, a dimension of the outer contour of the first release film 2 may be equal to a dimension of the outer contour of the adhesive layer 1, and the remaining directions are directions remaining after the plurality of first directions are removed from the predetermined directions.

Above-mentioned second is from the adhesion of type membrane 3 in the first one side of keeping away from viscose layer 1 from type membrane 2, and the second covers first from type membrane 2 from type membrane 3 completely for when adopting the pressurize instrument to carry out the pressurize to viscose layer 1, the pressurize instrument can only contact from type membrane 3 with the second, and can not contact from type membrane 2 with first. And, the orthographic projection of the second release film 3 on the preset plane completely covers the orthographic projection of the adhesive layer 1 on the preset plane, at this moment, the outer contour of the second release film is larger than or equal to the outer contour of the adhesive layer 1, and the outer contour of the first release film 2 is smaller than the outer contour of the adhesive layer 1, so that an isolation space can be formed between the edge of the second release film 3 and the edge of the adhesive layer 1. After the adhesive structure is attached to the attached object, the adhesive structure can be subjected to pressure maintaining through the pressure maintaining tool and the second contact with the middle part of the release film 3. The direction of the preset plane is perpendicular to the thickness direction of the adhesive layer 1, that is, the preset plane is parallel to the adhesive layer 1.

Generally, the outer contour of the adhered object is usually greater than or equal to the outer contour of the adhesive layer 1, so that the adhesive layer 1 can be completely supported by the adhered object, and when the outer contour of the adhered object is usually greater than or equal to the outer contour of the adhesive layer 1, the adhesive structure provided in this embodiment may be used, that is, the outer contour of the first release film 2 is controlled to be smaller than the outer contour of the adhesive layer 1, and the second release film 3 completely covers the first release film 2, so that the adhered object can effectively support the first release film 2 and a part of the second release film 3.

In the viscose structure provided by the utility model, when the first release film 2 and the second release film 3 are torn off, the second release film 3 is not directly contacted with the viscose layer 1 because the second release film 3 is attached to the first release film 2 through the release agent of the release film, so that the second release film 3 can be easily torn off without taking up the viscose layer 1, the outline of the first release film 2 is smaller than the outline of the adhesive layer 1, the first release film can be completely supported on the attached object 10, during the pressure maintaining process of the viscose layer 1, the first release film 2 can be completely supported by the attached object 10, the edge of the first release film 2 is smaller than the viscose layer 1, further, the viscose layer 1 below the first release film 2 can be completely supported and maintained, so as to be completely attached to the attached object 10, when the first release film 2 is torn off, the edge of the first release film 2 can not be taken up, and then can reduce when tearing the membrane the viscose layer edge and be taken up and cause viscose layer 1 probability of fold to appear, improve the efficiency of spare part equipment among the electronic product.

Optionally, as shown in fig. 2, the adhesive structure provided in this embodiment further includes a first tearing portion 4, the first tearing portion 4 is fixed to an edge of the first release film 2, and the first tearing portion 4 extends from the first release film 2 to the outside of the adhesive layer 1, so as to facilitate grasping. After the pressure maintaining of the adhesive layer 1 is completed, the first release film 2 can be torn from the adhesive layer 1 by the first tearing part 4. Because the viscose layer 1 below the first type membrane 2 has been supported the pressurize completely, that is, the viscose layer 1 below the first type membrane 2 is laminated completely with the thing 10 being pasted, consequently tearing off the first in-process from type membrane 2, viscose layer 1 can not be taken up by first type membrane 2. Illustratively, as shown in fig. 2, two first tear portions 4 are provided, and two first tear portions 4 are oppositely disposed at the edge of the first release film 2 to ensure the reliability of the first tear portions 4. In-process that will first tear from type membrane 2 through first portion 4 of tearing pulls can stimulate two first portions 4 of tearing simultaneously for first atress from type membrane 2 is more even, further reduces the probability that the fold appears in viscose layer 1, improves the efficiency of tearing the process simultaneously, and then prevents to appear leading to the first condition that can't get rid of from type membrane 2 because of first portion 4 of tearing loses efficacy.

Further, with reference to fig. 2, the adhesive structure further includes a second tearing portion 5, and the second tearing portion 5 is fixed to an edge of the second release film 3. After 1 pressurize completion to viscose layer, can tear the second from type membrane 3 through second tear portion 5 earlier, then tear first from type membrane 2 through first tear portion 4. The arrangement of the first tear portion 4 and the second tear portion 5 also facilitates the adhesive structure to be adhered to the adhered object 10. In this embodiment, the first tear portion 4 and the second tear portion 5 are both located outside the attached object 10, that is, the first tear portion 4 and the second tear portion 5 are not supported by the attached object 10. Illustratively, as shown in fig. 1, two second tearing portions 5 are provided, and the two second tearing portions 5 are oppositely disposed at the edge of the second release film 3 to ensure the reliability of the second tearing portions 5. Tearing the second from the in-process that type membrane 3 torn through second tear portion 5, can stimulate two seconds simultaneously and tear portion 5 for the second is more even from the atress of type membrane 3, further reduces the probability that the fold appears in viscose layer 1, improves the efficiency of tearing the process simultaneously, and then prevents to tear the condition that portion 5 became invalid and lead to the second to leave type membrane 3 and can't get rid of because of the second.

Alternatively, as shown in fig. 2, the first tearing portion 4 is provided with a first tearing hole 41, and the second tearing portion 5 is provided with a second tearing hole 51. The first tearing hole 41 can make the first tearing process from the type film 2 more convenient, and the second tearing hole 51 can make the second tearing process from the type film 3 more convenient. Illustratively, in the process of tearing the first release film 2 by the first tearing portion 4, a tool such as tweezers can be inserted into the first tearing hole 41 to clamp the first release film 2, and the operation process can be more accurate, and errors can be reduced. The process is similar in that the second release film 3 is peeled off by the second tear portion 5.

Optionally, referring to fig. 2, the first release film 2 is provided with a first through hole 21, and the second release film 3 is provided with a second through hole 31 corresponding to the first through hole 21. First through-hole 21 and second through-hole 31 can be to viscose layer 1, first from type membrane 2 and the third from type membrane 3 pressurize the in-process effect that plays auxiliary positioning. For example, when the object 10 has a through hole or a groove structure thereon, the alignment may be performed by the first through hole 21 and the second through hole 31.

For example, as shown in fig. 3, the cross-sectional shape of the first release film 2 and the cross-sectional shape of the second release film 3 may both be circular, and the outer diameter of the first release film 2 is smaller than the outer diameter of the second release film 3.

Further, the cross-sectional shape of the adhesive layer 1 may also be circular, at this time, the shape of the pasting surface of the pasted object 10 is circular, and as shown in fig. 5, the diameter of the second release film 3 is equal to the diameter of the adhesive layer 1, the diameter of the adhesive layer 1 is greater than the diameter of the pasting surface of the pasted object 10, at this time, it can be ensured that in the pressure maintaining process of the adhesive layer 1, the first release film 2 can be completely supported by the pasted object 10, and further, the adhesive layer 1 below the first release film 2 can be completely supported and maintained, so as to be completely attached to the pasted object 10, and thus when the first release film 2 is torn off, the adhesive layer 1 cannot be taken up by the first release film 2. And because the second is not directly from type membrane 3 and adhesive layer 1 contact, consequently tearing off the second when from type membrane 3, adhesive layer 1 can not be taken up from type membrane 3 by the second yet, finally reduces the probability that adhesive layer 1 the fold appears, improves the efficiency of spare part equipment in the electronic product.

Optionally, the adhesive structure provided in this embodiment further includes a third release film (not shown in the figure), the third release film is adhered to the other side of the adhesive layer 1, and the third release film covers the adhesive layer 1, and the third release film is configured to prevent the adhesive layer 1 from being adhered to another object when the adhesive structure is not in use.

Example two

The difference between the adhesive structure provided in this embodiment and the adhesive structure in the first embodiment is that the cross-sectional shapes of the adhesive layer 1, the first release film 2 and the second release film 3 are different.

Specifically, as shown in fig. 6 to 9, the adhesive layer 1, the first release film 2 and the attached object 10 are rectangular, the length of the first release film 2 is less than or equal to the length of the adhesive layer 1 and the attached object 10, and the width of the first release film 2 is equal to the width of the adhesive layer 1 and less than the width of the attached object 10, so that the first release film 2 can be completely supported by the attached object 10. For example, when the first release film 2 is formed, an opening may be opened at a corner of the raw material, so as to form the first release film 2 satisfying the above requirements.

Further, the second release film 3 is rectangular, the length of the second release film 3 is equal to the length of the adhesive layer 1 and is greater than the length of the object 10, and the width of the second release film 3 is equal to the width of the adhesive layer 1.

Other structures in this embodiment are the same as the corresponding structures in the first embodiment, and have the same beneficial effects, for example, the first tear portion 4 is fixed to the edge of the first release film 2, and the second tear portion 5 is fixed to the edge of the second release film 3; the first tearing portion 4 is provided with a first tearing hole 41, and the second tearing portion 5 is provided with a second tearing hole 51, etc., which are not described herein in detail in this embodiment.

The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An adhesive construction, comprising:

an adhesive layer (1);

the first release film (2) is adhered to one side of the adhesive layer (1), in at least one preset direction, the size of the outer contour of the first release film (2) is smaller than that of the outer contour of the adhesive layer (1), and the preset direction is one of multiple directions vertical to the thickness direction of the first release film (2);

the second is in from type membrane (3), the adhesion is in first keep away from type membrane (2) one side of viscose layer (1), the second is covered completely from type membrane (3) firstly from type membrane (2), just the second is covered from the orthographic projection of type membrane (3) on predetermineeing the plane viscose layer (1) is in predetermine the orthographic projection on the plane.

2. The adhesive construction according to claim 1, further comprising a first tearing portion (4), wherein the first tearing portion (4) is fixed to an edge of the first release film (2), and the first tearing portion (4) extends from the first release film (2) to the outside of the adhesive layer (1).

3. The adhesive construction according to claim 2, characterized in that it comprises a second tear-off portion (5), said second tear-off portion (5) being fixed to an edge of said second release film (3).

4. The adhesive structure according to claim 3, wherein the first tearing portions (4) are provided in two, and the two first tearing portions (4) are oppositely arranged at the edge of the first release film (2);

and/or, second tear portion (5) are equipped with two, two second tear portion (5) set up in the edge of second release liner (3) relatively.

5. The adhesive construction according to claim 3, wherein the first tear portion (4) is provided with a first tear hole (41) and the second tear portion (5) is provided with a second tear hole (51).

6. The adhesive structure according to claim 1, wherein the first release film (2) is provided with a first through hole (21), and the second release film (3) is provided with a second through hole (31) corresponding to the first through hole (21).

7. The adhesive structure according to claim 1, wherein the cross-sectional shape of the first release film (2) and the cross-sectional shape of the second release film (3) are both circular, and the diameter of the first release film (2) is smaller than the diameter of the second release film (3).

8. The adhesive structure according to claim 1, wherein the adhesive layer (1) and the first release film (2) are rectangular, the length of the first release film (2) is less than the length of the adhesive layer (1), and the width of the first release film (2) is equal to the width of the adhesive layer (1).

9. The adhesive construction according to claim 8, wherein the length of the second release film (3) is equal to the length of the adhesive layer (1), and the width of the second release film (3) is equal to the width of the adhesive layer (1).

10. The adhesive construction according to claim 1, further comprising a third release film adhered to the other side of the adhesive layer (1), and covering the adhesive layer (1).