Square heat shrink film package for electronic components

By combining the inner lining with the heat-shrink film, a double-layer film structure and hollow prisms are formed, which solves the problem of insufficient cushioning protection of heat-shrink film when wrapping electronic components, and achieves a more efficient transportation protection effect.

CN224376350UActive Publication Date: 2026-06-19KUNSHAN HENGJIEYUAN PACKAGE MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
KUNSHAN HENGJIEYUAN PACKAGE MATERIAL CO LTD
Filing Date
2025-10-20
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing heat shrink film is insufficient for cushioning and protection when wrapping electronic components, and cannot effectively prevent the components from shaking and colliding during transportation.

Method used

The design combines an inner liner with heat-shrink film. The inner liner forms a rectangular closed loop and creates a hollow cavity. Electronic components are placed inside the hollow cavity. After being wrapped with heat-shrink film, a double-layer film structure is formed. The sides of the inner liner are folded to form hollow prisms that fit with the heat-shrink film, providing additional cushioning protection.

Benefits of technology

It improves the stability and cushioning protection of electronic components, avoids displacement and collision during transportation, and enhances the reliability and safety of packaging.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a square heat-shrink film packaging for electronic components, including an inner liner plate comprising several linearly connected central rectangular plates. The two ends of the inner liner plate overlap to form a rectangular closed loop, and a hollow cavity is formed in the middle of the inner liner plate for placing electronic components. Heat-shrink film is used to wrap the electronic components and the inner liner plate together, with the heat-shrink film around the electronic components adhering to each other to form a double-layer film structure. The inner liner plate has integrally extended side rectangular plates. Folding these side rectangular plates, several side rectangular plates and a central rectangular plate form a hollow prism, the outer wall of which is adhered to the heat-shrink film. Using this utility model, the inner liner plate provides support and shaping, facilitating heat-shrink film adhesion; the hollow prism increases rigidity; the electronic components are suspended and cushioned; and it is easy to stack.
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Description

Technical Field

[0001] This utility model relates to the field of heat shrink film, specifically to a square heat shrink film packaging for electronic components. Background Technology

[0002] POF stands for heat shrink film, also known as multilayer co-extruded polyolefin heat shrink film. It is made by extruding linear low-density polyethylene as the middle layer and copolymer polypropylene as the inner and outer layers through three extruders, followed by special processes such as die forming and film bubble inflation.

[0003] The shapes of heat shrink film vary little, and many products are currently wrapped in a layer of heat shrink film for packaging and protection. After shrinking, heat shrink film can generally adapt to the uneven shape of the wrapped workpiece. This type of packaging can effectively isolate dust and impurities, but its cushioning protection is insufficient because heat shrink film is merely a thin film that adheres to the surface of the wrapped workpiece without providing adequate cushioning. This disadvantage is particularly pronounced when the wrapped product is a delicate electronic component. Utility Model Content

[0004] The problem to be solved by this utility model is to provide a square heat shrink film packaging for electronic components.

[0005] To solve the above problems, this utility model provides a square heat-shrink film packaging for electronic components. To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problems is as follows:

[0006] A square heat-shrink film package for electronic components includes: an inner liner comprising several central rectangular plates connected in a straight line, the two ends of the inner liner overlapping to form a rectangular closed loop, and a hollow cavity formed in the middle of the inner liner for placing electronic components; and heat-shrink film for wrapping the electronic components and the inner liner together, wherein the heat-shrink film around the electronic components is bonded together to form a double-layer film structure; wherein, the inner liner has side rectangular plates integrally extending from its sides, the side rectangular plates are folded, and several side rectangular plates and a central rectangular plate form a hollow prism, the outer wall of the hollow prism being bonded to the heat-shrink film.

[0007] As a further improvement of this utility model, the central rectangular plate of the inner lining plate includes a first rectangular plate, a second rectangular plate, a third rectangular plate, a fourth rectangular plate, and a fifth rectangular plate connected in a straight line in sequence. When the inner lining plate is a rectangular closed loop, the first rectangular plate and the fifth rectangular plate are in close contact with each other.

[0008] As a further improvement of this utility model, the side rectangular plate of the inner lining plate includes the same side of the third rectangular plate and the fifth rectangular plate.

[0009] As a further improvement of this utility model, the side rectangular plates connected to the third rectangular plate and the fifth rectangular plate each include a sixth rectangular plate and a seventh rectangular plate. The third rectangular plate and the connected sixth rectangular plate and the seventh rectangular plate can form a hollow triangular prism. The fifth rectangular plate and the connected sixth rectangular plate and the seventh rectangular plate can also form a hollow triangular prism.

[0010] As a further improvement of this utility model, the first rectangular plate, the second rectangular plate, the third rectangular plate, the fourth rectangular plate, the fifth rectangular plate, the sixth rectangular plate, and the seventh rectangular plate have the same size and shape.

[0011] As a further improvement of this utility model, the inner lining board is corrugated cardboard.

[0012] As a further improvement of this utility model, the heat shrink film, in the wrapped state, includes an integral side upright portion, a concave portion, and a raised portion. The side upright portion is attached to the outer ring of the inner lining plate in the rectangular closed-loop state. The top and bottom of the heat shrink film are concave portions extending towards each other. The outer wall of the hollow prism is attached to the concave portion. The front and back sides of the electronic component are attached to the raised portion.

[0013] As a further improvement of this utility model, the heat shrink film is made of POF, PET, OPS or PVDC.

[0014] As a further improvement of this utility model, the thickness of the heat shrink film is one of 12μm, 15μm, 20μm, 25μm, 30μm, and 37μm.

[0015] The beneficial technical effects of using the square heat-shrink film packaging for electronic components according to this application are:

[0016] The inner lining acts as an internal support, forming a square frame or a flat rectangular shape, which facilitates the subsequent heat shrinking of the film according to its shape and contour.

[0017] The side rectangular plate, which extends integrally from the side of the inner lining plate, is folded to form a hollow prism with the central rectangular plate. The outer wall of the hollow prism is bonded to the heat-shrink film. The hollow prism can improve the rigidity and shape stability of the inner lining plate after folding.

[0018] The inner lining panel is easy to fold from a simple flat sheet, and the cost is low.

[0019] The electronic components do not contact the inner liner, achieving a similar effect of suspension and fixation. The heat-shrink film packages the electronic components and the inner liner together. The heat-shrink film does not simply wrap the electronic components; it creates sufficient cushioning space around them. This prevents displacement and collisions of the electronic components during transportation and storage, ensuring the structural integrity of the components and improving the reliability of the packaging in securing and protecting valuable electronic components.

[0020] In addition, the square shape makes it easy to stack vertically without damaging electronic components. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is an application diagram of one embodiment of the present invention;

[0023] Figure 2 This is an application diagram of one embodiment of the present invention;

[0024] Figure 3 This is a perspective view of a heat-shrinkable film according to one embodiment of the present invention;

[0025] Figure 4 This is a perspective view of the inner lining plate according to one embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of an inner lining plate according to one embodiment of the present invention;

[0027] Figure 6 This is a plan view of the inner lining plate according to one embodiment of the present invention.

[0028] 1-Heat shrink film; 101-Side upright part; 102-Concave part; 103-Raised part; 2-Inner lining plate; 201-First rectangular plate; 202-Second rectangular plate; 203-Third rectangular plate; 204-Fourth rectangular plate; 205-Fifth rectangular plate; 206-Sixth rectangular plate; 207-Seventh rectangular plate; 3-Electronic components; 4-Hollow cavity; 5-Hollow triangular prism. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to specific embodiments:

[0030] To achieve the purpose of this utility model, a square heat-shrink film packaging for electronic components includes: an inner liner 2 comprising several linearly connected central rectangular plates, the two ends of the inner liner 2 overlapping to form a rectangular closed loop, and a hollow cavity 4 formed in the middle of the inner liner 2 for placing electronic components 3. A heat-shrink film 1, i.e., a heat-shrinkable film, wraps the electronic components 3 and the inner liner 2 together, with the heat-shrink film 1 around the electronic components 3 adhered to each other to form a double-layer film structure. The inner liner 2 has integrally extended side rectangular plates. Folding these side rectangular plates, several side rectangular plates and a central rectangular plate form a hollow prism, the outer wall of which adheres to the heat-shrink film 1. The electronic components 3 do not contact the inner liner 2, achieving a similar effect of suspension and fixation.

[0031] Figure 1 This is a schematic diagram of a single packaging application. Figure 2 This is a diagram illustrating multiple stacks. Additionally, Figure 6 The inner lining panel 2, after being folded, will eventually become Figure 4 This state will occur midway through this period. Figure 5 state, Figure 5 This makes it easier to understand the three-dimensional shape of the inner lining plate 2.

[0032] The beneficial effects of adopting the above technical solution are: the inner liner 2 forms a rectangular closed loop and constructs a hollow cavity 4, so that the electronic components 3 are in a suspended and fixed state. After the heat shrink film 1 is wrapped as a whole, a double-layer film buffer structure is formed, which effectively avoids collisions of components during transportation and improves the reliability of packaging protection.

[0033] like Figure 5 , Figure 6 As shown, in some other embodiments of this utility model, the central rectangular plate of the inner lining plate 2 includes a first rectangular plate 201, a second rectangular plate 202, a third rectangular plate 203, a fourth rectangular plate 204, and a fifth rectangular plate 205 connected in a straight line in sequence. When the inner lining plate 2 is a rectangular closed loop, the first rectangular plate 201 and the fifth rectangular plate 205 are in close contact with each other.

[0034] The beneficial effect of adopting the above technical solution is that by connecting the first rectangular plate 201 to the fifth rectangular plate 205 in sequence and overlapping them end to end, a regular and stable rectangular closed-loop structure is formed, which facilitates the folding and forming of the inner lining plate 2.

[0035] In some other embodiments of the present invention, the side rectangular plates of the inner lining plate 2 include the same side of the third rectangular plate 203 and the fifth rectangular plate 205.

[0036] The beneficial effect of adopting the above technical solution is that the inner lining plate 2 is relatively simple in the unfolded state.

[0037] like Figure 5 , Figure 6 As shown, in some other embodiments of this utility model, the side rectangular plates connected to the third rectangular plate 203 and the fifth rectangular plate 205 each include a sixth rectangular plate 206 and a seventh rectangular plate 207. The third rectangular plate 203 and the connected sixth rectangular plate 206 and seventh rectangular plate 207 can form a hollow triangular prism 5, and the fifth rectangular plate 205 and the connected sixth rectangular plate 206 and seventh rectangular plate 207 can also form a hollow triangular prism 5. Because the length and width of each rectangular plate correspond one-to-one, the hollow triangular prism 5 is a regular triangular prism.

[0038] like Figure 4 As shown, there are two hollow prisms, which are parallel to each other. The hollow prisms are located in the inner ring of the inner liner plate 2 under the rectangular closed ring.

[0039] Figure 6 In the middle, there are two of each of the sixth rectangular plate 206 and the seventh rectangular plate 207. For example... Figure 4 , Figure 5 As shown, the two ends of the hollow triangular prism 5 abut against the second rectangular plate 202 and the fourth rectangular plate 204, thereby ensuring the perpendicularity of the first rectangular plate 201, the second rectangular plate 202, the third rectangular plate 203, and the fourth rectangular plate 204 to each other, and ensuring the shape stability of the inner lining plate 2 under the rectangular closed loop.

[0040] In another embodiment, the seventh rectangular plate 207 is integrally connected to an eighth rectangular plate on the side opposite to the sixth rectangular plate 206. The sixth rectangular plate 206, the seventh rectangular plate 207, and the eighth rectangular plate surround a central rectangular plate and form a hollow triangular prism 5.

[0041] The beneficial effects of adopting the above technical solution are: the sixth rectangular plate 206 and the seventh rectangular plate 207 together with the central rectangular plate form a hollow triangular prism 5, which significantly enhances the three-dimensional support strength of the inner lining plate 2, prevents the packaging from being deformed by pressure, and better protects the electronic components 3.

[0042] like Figure 6 As shown, in some other embodiments of this utility model, the first rectangular plate 201, the second rectangular plate 202, the third rectangular plate 203, the fourth rectangular plate 204, the fifth rectangular plate 205, the sixth rectangular plate 206, and the seventh rectangular plate 207 have the same size and shape.

[0043] The advantages of adopting the above technical solution are: all rectangular plates have the same size and shape, which simplifies the design of the plates, reduces production costs, and facilitates mass production.

[0044] In some other embodiments of this utility model, the inner lining board 2 is corrugated cardboard.

[0045] like Figure 6As shown, there are creases at the junctions of the first rectangular plate 201, the second rectangular plate 202, the third rectangular plate 203, the fourth rectangular plate 204, the fifth rectangular plate 205, the sixth rectangular plate 206, and the seventh rectangular plate 207.

[0046] The beneficial effects of adopting the above technical solution are: the inner lining board 2 is made of corrugated cardboard, which has good cushioning performance and environmental protection characteristics, and is inexpensive.

[0047] like Figure 3 As shown, in some other embodiments of this utility model, the heat shrink film 1, in the wrapped state, includes an integral side upright portion 101, an inner concave portion 102, and a raised portion 103. The side upright portion 101 is attached to the outer ring of the inner liner 2 in the rectangular closed-loop state. The top and bottom of the heat shrink film 1 are the inner concave portions 102 extending towards each other. The outer wall of the hollow prism is attached to the inner concave portion 102. The front and back sides of the electronic component 3 are attached to the raised portion 103.

[0048] Figure 3 There are some typical creases to represent the shape of the concave portion 102 and the raised portion 103. The concave portion 102 shrinks along the outer wall of the hollow prism, presenting a shape that is deep in the middle and shallow at the edge. The side portion 101, the concave portion 102, and the raised portion 103 are naturally formed in the heat shrinking state to adapt to the volume and outline of the inner lining plate 2 and the electronic components 3.

[0049] The beneficial effects of adopting the above technical solution are: the heat shrink film 1 forms a side upright part 101, an inner concave part 102 and a raised part 103, which respectively adhere to the outer ring of the inner liner 2, the outer wall of the hollow prism and the surface of the electronic components 3, to achieve tight wrapping and cushioning protection, and improve the overall packaging adaptability and shock resistance.

[0050] In some other embodiments of this utility model, the heat shrink film 1 is made of POF, PET, OPS or PVDC.

[0051] The beneficial effects of adopting the above technical solutions are as follows: POF, PET, OPS, and PVDC are respectively polyolefin heat shrink film, polyethylene terephthalate heat shrink film, oriented polystyrene heat shrink film, and polyvinylidene chloride heat shrink film. POF has excellent comprehensive performance, combining high transparency, high toughness, and environmental friendliness; PET has extremely high transparency, rigidity, and printability; OPS is environmentally friendly and has excellent gloss and rigidity; and PVDC has good oxygen and moisture barrier properties.

[0052] In some other embodiments of this utility model, the thickness of the heat-shrinkable film 1 is one of 12μm, 15μm, 20μm, 25μm, 30μm, and 37μm.

[0053] The beneficial effects of adopting the above technical solution are: limiting the thickness of the heat-shrinkable film 1 to the range of 12 to 37 micrometers, balancing mechanical strength and heat-shrinkability. If it is too thin, it will be easily damaged; if it is too thick, the shrinkage force will be insufficient.

[0054] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A square heat-shrink film packaging for electronic components, characterized in that, include: The inner lining plate includes several central rectangular plates connected in a straight line. The two ends of the inner lining plate overlap to form a rectangular closed loop, and a hollow cavity is formed in the middle of the inner lining plate. The hollow cavity is used to place electronic components. Heat shrink film is used to wrap electronic components and inner lining together, with the heat shrink film around the electronic components being bonded together to form a double-layer film structure. The inner lining plate has an integrally extended side rectangular plate, a folded side rectangular plate, and several side rectangular plates and a central rectangular plate to form a hollow prism. The outer wall of the hollow prism is bonded to a heat-shrinkable film.

2. The square heat-shrink film packaging for electronic components according to claim 1, characterized in that: The central rectangular plate of the lining plate includes a first rectangular plate, a second rectangular plate, a third rectangular plate, a fourth rectangular plate, and a fifth rectangular plate that are connected in a straight line in sequence. When the lining plate is a rectangular closed loop, the first rectangular plate and the fifth rectangular plate are in contact with each other.

3. The square heat-shrink film packaging for electronic components according to claim 2, characterized in that: The side rectangular plates of the inner lining plate include those located on the same side of the third rectangular plate and the fifth rectangular plate.

4. The square heat-shrink film packaging for electronic components according to claim 3, characterized in that: The side rectangular plates connected to the third rectangular plate and the fifth rectangular plate each include the sixth rectangular plate and the seventh rectangular plate. The third rectangular plate and the connected sixth rectangular plate and the seventh rectangular plate can form a hollow triangular prism. The fifth rectangular plate and the connected sixth rectangular plate and the seventh rectangular plate can also form a hollow triangular prism.

5. The square heat-shrink film packaging for electronic components according to claim 4, characterized in that: The first rectangular plate, the second rectangular plate, the third rectangular plate, the fourth rectangular plate, the fifth rectangular plate, the sixth rectangular plate, and the seventh rectangular plate have the same size and shape.

6. The square heat-shrink film packaging for electronic components according to claim 1, characterized in that: The inner lining is made of corrugated cardboard.

7. The square heat-shrink film packaging for electronic components according to claim 1, characterized in that: The heat shrink film, in its wrapped state, includes an integral side upright portion, a concave portion, and a raised portion. The side upright portion is fitted to the outer ring of the inner lining plate in a rectangular closed-loop state. The top and bottom of the heat shrink film are concave portions extending towards each other. The outer wall of the hollow prism is fitted to the concave portion. The front and back sides of the electronic component are fitted to the raised portion.

8. The square heat-shrink film packaging for electronic components according to claim 1, characterized in that: The heat shrink film is made of POF, PET, OPS or PVDC.

9. The square heat-shrink film packaging for electronic components according to claim 1, characterized in that: The thickness of the heat-shrinkable film is one of 12μm, 15μm, 20μm, 25μm, 30μm, and 37μm.