Release film and camera assembly

Abstract

The utility model belongs to the technical field of cameras, and particularly discloses a release film and a camera assembly. The release film comprises a film body and a hand tearing part, and the film body is used for being attached to the bottom of the mounting groove; the hand tearing part is intermittently connected to one side of the diaphragm body, a bending line is arranged at the joint of the hand tearing part and the diaphragm body so that the hand tearing part can be bent by any angle relative to the diaphragm, and when the diaphragm body is attached to the interior of the mounting groove, the hand tearing part is partially located outside the mounting groove. The release film disclosed by the utility model is not easy to fall off, and the dustproof effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cameras, and in particular relates to a release film and a camera assembly. Background Art

[0002] Before assembling the lens of the camera assembly of electronic products such as mobile phones and tablets, it is necessary to tear off the release film of the camera assembly from the barrel and adhesive backing of the lens assembly, and then stick the lens on the adhesive backing of the lens assembly.

[0003] The release film in the related art includes a film body and a hand-tear portion arranged on one side of the film body. However, since the position for installing the lens is a mounting groove adapted to the shape of the film body, when the release film is fitted in the mounting groove, the hand-tear portion overlaps the side wall of the mounting groove, and the position of the film body near the hand-tear portion is prone to warping, causing the release film to easily fall off from the mounting groove, making it impossible to provide reliable dust protection. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, an embodiment of the present invention provides a release film that is not easy to fall off and improves the dustproof effect.

[0005] An embodiment of the present utility model further provides a camera assembly.

[0006] The release film of the embodiment of the present invention includes: a diaphragm body, which is used to be attached to the bottom of the mounting groove; a hand-tear portion, which is intermittently connected to one side of the diaphragm body, and a bending line is provided at the connection between the hand-tear portion and the diaphragm body so that the hand-tear portion can be bent at any angle relative to the diaphragm body. When the diaphragm body is attached to the mounting groove, the hand-tear portion is partially located outside the mounting groove.

[0007] It can be understood that when the diaphragm body is attached to the bottom of the mounting groove, the hand-tear portion is located outside the positive projection range of the mounting groove, so that the hand-tear portion needs to abut against the side wall of the mounting groove. In this embodiment, the hand-tear portion and the diaphragm body are intermittently connected, so that the hand-tear portion is easier to bend relative to the diaphragm body, which is beneficial for the connection between the diaphragm body and the hand-tear portion to be more tightly attached to the mounting groove, thereby making the diaphragm body not easy to fall off, thereby improving the dust-proof effect.

[0008] In this embodiment, the depth of the mounting groove is A, the bottom wall of the mounting groove is attached with adhesive, the thickness of the adhesive is B, and when the hand-tear portion is parallel to the diaphragm body, the length of the hand-tear portion in the direction away from the diaphragm body is C, C = A-B+2mm~3mm.

[0009] In this embodiment, the width of the hand-tear portion is 1.5 mm to 2.5 mm.

[0010] In this embodiment, the diaphragm body is circular, the diameter of the diaphragm body is D, D is 15 mm to 22 mm, the sum of the weight of the diaphragm body and the hand-tearable portion is M, and M is 60 mg to 80 mg.

[0011] In this embodiment, a cutting line is further provided on the membrane body, and the cutting line extends from the hand-tear portion to the middle of the membrane body.

[0012] In this embodiment, in the width direction of the hand-tear portion, the starting position of the cutting line is located on one side of the hand-tear portion.

[0013] In this embodiment, the cutting line includes a first cutting segment and a second cutting segment sequentially arranged from the hand-tear portion, and the second cutting segment is semicircular.

[0014] In this embodiment, the cutting line divides the membrane body into a first area and a second area, the hand-tear portion is adjacent to the first area, and the area of ​​the first area is larger than that of the second area.

[0015] The camera assembly of an embodiment of the present invention includes a lens barrel, a backing glue and the above-mentioned release film, the lens barrel has a mounting groove, the backing glue is attached to the circumference of the mounting groove, the release film is attached to the backing glue and the diaphragm body of the release film is circumferentially abutted against the side wall of the mounting groove.

[0016] In this embodiment, an annular protrusion is provided in the middle of the bottom wall of the mounting groove, and a cutting line is also provided on the diaphragm body. The cutting line extends from the hand-tear portion to the middle of the diaphragm body, and the end of the cutting line away from the hand-tear portion is a semicircular arc corresponding to the annular protrusion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a release film according to an embodiment of the present invention.

[0018] Figure 2 It is a schematic structural diagram of the release film and back adhesive of an embodiment of the present utility model.

[0019] Figure 3 It is a structural schematic diagram of a camera assembly according to an embodiment of the present utility model.

[0020] Figure 4 It is a three-dimensional diagram of the lens barrel of an embodiment of the present utility model.

[0021] Figure 5 It is a cross-sectional view of the lens barrel of an embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1. Release film; 11. Film body; 111. First area; 112. Second area; 12. Tear portion; 13. Bending line; 14. Cutting line; 141. First cutting section; 142. Second cutting section;

[0024] 2. Lens barrel; 21. Mounting groove; 22. Annular protrusion;

[0025] 3. Adhesive backing. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0027] like Figures 1 to 3 As shown, the release film 1 is shown with hatching. The release film 1 in this embodiment includes a film body 11 and a tear-off portion 12. The film body 11 is intended to be attached to the bottom of the mounting groove 21. The tear-off portion 12 is intermittently connected to one side of the film body 11. A bending line 13 is provided at the connection between the tear-off portion 12 and the film body 11, allowing the tear-off portion 12 to bend at any angle relative to the film body 11. When the film body 11 is attached to the mounting groove 21, the tear-off portion 12 is partially located outside the mounting groove 21.

[0028] For example, in this embodiment, the film body 11 and the hand-tear portion 12 are integrally formed, which can facilitate the processing of the release film 1. The film body 11 and the hand-tear portion 12 are intermittently connected, which means that interrupted holes (not shown in the figure) are provided at intervals at the connection between the film body 11 and the hand-tear portion 12, so that the hand-tear portion 12 can be easily bent relative to the film body 11. Of course, the film body 11 and the hand-tear portion 12 can also be provided in a separate molding manner, which is not limited here.

[0029] Specifically, one end of the hand-tear portion 12 away from the membrane body 11 is provided with a rounded corner, which can improve safety during use and reduce scratches.

[0030] It can be understood that when the diaphragm body 11 is attached to the bottom of the mounting groove 21, the hand-tear portion 12 is located outside the positive projection range of the mounting groove 21, so that the hand-tear portion 12 needs to abut against the side wall of the mounting groove 21. In this embodiment, the hand-tear portion 12 and the diaphragm body 11 are intermittently connected, so that the hand-tear portion 12 is easier to bend relative to the diaphragm body 11, which is conducive to making the connection between the diaphragm body 11 and the hand-tear portion 12 more tightly attached to the mounting groove 21, so that the diaphragm body 11 is not easy to fall off, thereby improving the dust-proof effect.

[0031] In this embodiment, if Figure 3 and Figure 5 As shown, the depth of the mounting groove 21 is A, the bottom wall of the mounting groove 21 is attached with adhesive 3, the thickness of the adhesive 3 is B, and when the hand-tear portion 12 is parallel to the diaphragm body 11, the length of the hand-tear portion 12 in the direction away from the diaphragm body 11 is C, C = A-B+2mm~3mm.

[0032] The thickness of the adhesive backing 3 is less than the depth of the mounting groove 21. For example, when AB = 0.66 mm, C is 2.66 mm to 3.66 mm. The specific value of C can be selected as needed and is not limited here. Specifically, C = A - B + 2 mm to 3 mm. That is, after the release film 1 is installed, when the tear-off portion 12 is bent 90° relative to the film body 11, the tear-off portion 12 protrudes from the side wall of the mounting groove 21 by 2 mm to 3 mm. For example, the length of the tear-off portion 12 protruding from the side wall of the mounting groove 21 can be 2 mm, 2.2 mm, 2.5 mm, 2.8 mm, or 3 mm.

[0033] It is understandable that in this embodiment, when the release film 1 is installed in the installation groove 21 , the hand-tear portion 12 has an adaptive margin protruding from the side wall of the installation groove 21 , which makes it easier for staff to tear off the release film 1 through the hand-tear portion 12 .

[0034] In this embodiment, the width of the hand-tear portion 12 is 1.5 mm to 2.5 mm.

[0035] For example, the width of the hand-tear portion 12 can be 1.5mm, 1.8mm, 2.0mm, 2.2mm or 2.5mm, etc. If the width of the hand-tear portion 12 is too small, it is not convenient to tear it. If the width of the hand-tear portion 12 is too large, the rigidity of the hand-tear portion 12 will be greater, and the hand-tear portion 12 will easily cause the diaphragm body 11 to fall off after being subjected to external force.

[0036] In this embodiment, the width of the hand-tear portion 12 is 1.5 mm to 2.5 mm, which makes the hand-tear portion 12 easy to bend and not easy to fall off with the membrane body 11 when subjected to external force. At the same time, it is convenient for operators to tear off the hand-tear portion 12.

[0037] In this embodiment, the diaphragm body 11 is circular, and the diameter of the diaphragm body 11 is D, which is 15 mm to 22 mm. The sum of the weight of the diaphragm body 11 and the hand-tearable portion 12 is M, which is 60 mg to 80 mg.

[0038] For example, when the diameter of the diaphragm body 11 is 15 mm, the sum of the weight of the diaphragm body 11 and the hand-tearable part 12 can be 60 mg; when the diameter of the diaphragm body 11 is 22 mm, the sum of the weight of the diaphragm body 11 and the hand-tearable part 12 can be 80 mg; when the diameter of the diaphragm body 11 is 18.5 mm, the sum of the weight of the diaphragm body 11 and the hand-tearable part 12 can be 70 mg.

[0039] In this embodiment, the overall weight of the release film 1 is set according to the size of the film body 11, which can reduce the risk of the release film 1 being too heavy and having too strong a release force to be difficult to tear off, or being too light and easily falling off during transportation.

[0040] In this embodiment, if Figure 1 and Figure 2 As shown, a cutting line 14 is further provided on the membrane body 11 , and the cutting line 14 extends from the hand-tear portion 12 to the middle of the membrane body 11 .

[0041] It can be understood that by setting the cutting line 14, the film body 11 is divided into two areas. When the film body 11 is torn off through the hand-tear portion 12, the film body 11 can be torn off from the side adjacent to the hand-tear portion 12, and then gradually torn off to the other side. By tearing off the film body 11 in different areas, the contact area between the release film 1 and the backing adhesive 3 is reduced when tearing off the release film 1, thereby reducing the pulling force when tearing off the release film 1, making the release film 1 easier to tear off.

[0042] In this embodiment, if Figure 1 and Figure 3 As shown, in the width direction of the hand-tear portion 12 , the starting position of the cutting line 14 is located on one side of the hand-tear portion 12 .

[0043] It can be understood that the starting position of the cutting line 14 is located on one side of the hand-tear portion 12, so that the hand-tear portion 12 as a whole is connected to the area on one side of the cutting line 14, which can make the connection between the hand-tear portion 12 and the area on one side of the cutting line 14 more reliable, and reduce the occurrence of breakage when tearing the membrane body 11 through the hand-tear portion 12.

[0044] In this embodiment, if Figure 1 and Figure 2 As shown, the cutting line 14 includes a first cutting segment 141 and a second cutting segment 142 sequentially arranged from the hand-tear portion 12, and the second cutting segment 142 is semicircular.

[0045] It should be noted that when the diaphragm body 11 is attached to the bottom of the mounting groove 21, the second cutting segment 142 corresponds to the annular protrusion 22 at the bottom of the mounting groove 21, so that the annular protrusion 22 can provide a certain support for the diaphragm body 11, thereby reducing the collapse of the middle part of the diaphragm body 11 due to the setting of the cutting line 14, and then forming a larger gap at the cutting line 14, which makes it easy for dust to enter through the gap.

[0046] In this embodiment, if Figure 1 and Figure 2As shown, the cutting line 14 divides the membrane body 11 into a first area 111 and a second area 112 . The hand-tear portion 12 is adjacent to the first area 111 , and the area of ​​the first area 111 is larger than that of the second area 112 .

[0047] It should be noted that since the second cutting segment 142 is semicircular, the area of ​​the first area 111 is larger than the area of ​​the second area 112, and the first area 111 forms a semicircular protrusion toward the second area 112. The hand-tear portion 12 is connected to the first area 111. When tearing off the release film 1 through the hand-tear portion 12, the first area 111 is torn off first, and then the second area 112 is torn off, so as to avoid the semicircular protrusion being torn off later and shaking to drop dust.

[0048] like Figures 3 to 5 As shown, the camera assembly in this embodiment includes a lens barrel 2, adhesive backing 3 and the above-mentioned release film 1, the lens barrel 2 has a mounting groove 21, the adhesive backing 3 is attached to the circumference of the mounting groove 21, the release film 1 is attached to the adhesive backing 3 and the diaphragm body 11 of the release film 1 is circumferentially abutted against the side wall of the mounting groove 21.

[0049] Specifically, the adhesive backing 3 is located at the bottom of the mounting groove 21, and the diaphragm body 11 of the release film 1 is attached to the side of the adhesive backing 3 away from the bottom of the mounting groove 21. The hand-tear portion 12 is bent relative to the diaphragm body 11 and abuts against the side wall of the mounting groove 21. The position of the diaphragm body 11 adjacent to the hand-tear portion 12 is not easy to fall off, thereby improving the dust-proof effect.

[0050] In this embodiment, if Figures 3 to 5 As shown, an annular protrusion 22 is provided in the middle of the bottom wall of the mounting groove 21, and a cutting line 14 is also provided on the diaphragm body 11. The cutting line 14 extends from the hand-tear portion 12 to the middle of the diaphragm body 11, and the end of the cutting line 14 away from the hand-tear portion 12 is a semicircular arc corresponding to the annular protrusion 22.

[0051] It can be understood that in this embodiment, the shape of the cutting line 14 of the release film 1 is set according to the annular protrusion 22 of the lens barrel 2 itself. When the diaphragm body 11 is attached to the bottom of the mounting groove 21, the second cutting section 142 of the cutting line 14 corresponds to the annular protrusion 22. In this way, the annular protrusion 22 can form a certain support for the diaphragm body 11, reducing the collapse of the middle part of the diaphragm body 11 due to the setting of the cutting line 14, and then forming a larger gap at the cutting line 14, which makes it easy for dust to enter through the gap.

[0052] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to 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 invention and simplifying the description, and 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 therefore should not be understood as a limitation to the present invention.

[0053] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0056] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A release film, characterized in that: include: A diaphragm body, the diaphragm body being used to be attached to the bottom of the mounting groove; A hand-tear portion, the hand-tear portion is intermittently connected to one side of the diaphragm body, and a bending line is provided at the connection between the hand-tear portion and the diaphragm body so that the hand-tear portion can be bent at any angle relative to the diaphragm body. When the diaphragm body is attached to the mounting groove, the hand-tear portion is partially located outside the mounting groove.

2. The release film according to claim 1, wherein The depth of the mounting groove is A, the bottom wall of the mounting groove is attached with adhesive, the thickness of the adhesive is B, and when the hand-tear portion is parallel to the diaphragm body, the length of the hand-tear portion in the direction away from the diaphragm body is C, C=A-B+2mm~3mm.

3. The release film according to claim 1, wherein The width of the hand-tear portion is 1.5 mm to 2.5 mm.

4. The release film according to claim 1, wherein The diaphragm body is circular, and the diameter of the diaphragm body is D, which is 15 mm to 22 mm. The sum of the weight of the diaphragm body and the hand-tearable part is M, which is 60 mg to 80 mg.

5. The release film according to claim 1, wherein The membrane body is further provided with a cutting line, which extends from the hand-tear portion to the middle of the membrane body.

6. The release film according to claim 5, characterized in that In the width direction of the hand-tear portion, the starting position of the cutting line is located at one side of the hand-tear portion.

7. The release film according to claim 6, characterized in that The cutting line includes a first cutting segment and a second cutting segment sequentially arranged from the hand-tear portion, and the second cutting segment is semicircular.

8. The release film according to claim 7, characterized in that: The cutting line divides the film body into a first area and a second area. The hand-tear portion is adjacent to the first area, and the area of ​​the first area is larger than that of the second area.

9. A camera assembly, characterized in that: The lens barrel comprises a lens barrel, adhesive backing and a release film according to any one of claims 1 to 8, wherein the lens barrel has a mounting groove, the adhesive backing is attached to the circumference of the mounting groove, the release film is attached to the adhesive backing and the diaphragm body of the release film is in contact with the side wall of the mounting groove in the circumference.

10. The camera assembly according to claim 9, wherein: An annular protrusion is provided in the middle of the bottom wall of the mounting groove, and a cutting line is also provided on the diaphragm body. The cutting line extends from the hand-tear portion to the middle of the diaphragm body, and the end of the cutting line away from the hand-tear portion is a semicircular arc corresponding to the annular protrusion.

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