Battery blister packaging body

Abstract

The utility model provides a battery blister packaging body which is sequentially provided with a blister blister shell, a plastic film and a paper card from top to bottom, the blister blister shell is provided with a flat bottom, a battery containing portion protruding from the plane of the bottom and a shearing portion protruding from the plane of the bottom and communicated with the battery containing portion, the cutting part is arranged in the mode that a battery cannot enter the cutting part from the battery containing part, the bottom of the blister blister is connected with the plastic film, and the plastic film is connected with the paper card. A cutting line in a dotted line shape is formed on the plastic film below the battery accommodating part and the cutting part, the cutting line extends from the cutting part to the battery accommodating part, and the cutting line is not formed on the paper card. According to the scheme, the battery blister packaging body which is high in safety and taking-out convenience and capable of inhibiting warping of the paper cards can be provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a battery blister packaging body. BACKGROUND

[0002] The battery blister packaging body is a kind of packaging body commonly used to contain small battery (for example, button cell), usually, transparent plastic sheet is made into blister bubble shell with bottom and containing part for containing battery protruding from bottom plane by blister process, it is covered on the surface of battery, to play the protection effect, then the bottom of blister bubble shell is integrated with paper card by sealing machine, to form battery blister packaging body, to package battery.

[0003] In the past, in order to prevent small battery in blister packaging body from being easily taken out by children and causing the problem of children misfeeding, blister packaging body capable of avoiding battery being easily taken out is designed.For example, by setting plastic film on the surface of paper card, the bottom of blister bubble shell is integrated with plastic film by high-frequency welding, and then the plastic film is integrated with paper card by adhesive, whereby the blister bubble shell is integrated with paper card via the plastic film to form battery blister packaging body,

[0004] Such battery blister packaging body is fused with blister bubble shell by high-frequency welding instead of adhesive, which belongs to direct integration at material molecular level, so the integration strength is high and long-term stable, and the bubble shell is prevented from falling off due to failure of hot melt adhesive in prior art, further improving safety.

[0005] Although the above scheme effectively improves safety, the blister bubble shell is firmly integrated with plastic film and difficult to separate, so that the battery is difficult to take out from packaging body.The blister bubble shell can also be damaged by scissors, but the battery is easily damaged when the blister bubble shell is damaged by scissors because the blister bubble shell is close to the battery, resulting in battery deterioration.

[0006] In order to ensure safety while appropriately improving the convenience of taking out battery and avoiding battery damage, prior art has a scheme of setting a shearing part in the blister bubble shell. Specifically, the shearing part protrudes from the bottom plane of the blister bubble shell and communicates with the battery containing part, and the height is lower than the thickness of the battery. When taking out the battery, the user cuts the shearing part along the pre-set shearing line. Since the bubble shell of the shearing part is separated from the paper card and the plastic film, the blister bubble shell and the paper card can be torn to take out the battery.

[0007] However, since the blister and the plastic film are strongly joined, even if the above-mentioned cut portion is cut, the blister and the paper card are difficult to be separated, and a large force is required to sufficiently separate the blister and the paper card. Therefore, the process of taking out the battery is difficult, time-consuming, and the usability of the package is poor. Furthermore, if the blister and the paper card are separated with excessive force, the battery can be bounced out of the package, and the battery can be damaged, resulting in unstable safety.

[0008] In addition, in the battery blister package of the prior art, a plastic film is provided on the paper card to improve the strength of the package. However, since the plastic film and the paper card are made of different materials, after the plastic film is attached to the paper card during production, the paper card can easily warp due to film stress, resulting in reduced productivity. In addition, the plastic film and the paper card shrink or expand to different degrees depending on changes in environmental temperature, humidity, and the like. Thus, the battery blister package of the prior art can easily warp due to film stress and other adverse phenomena due to changes in environmental conditions and the like during long-term storage. SUMMARY

[0009] The present utility model is made to solve the problems of the prior art, i.e., the difficulty in balancing the safety and convenience of taking out the battery blister package, and the warping of the paper card, and aims to provide a battery blister package that is both safe and convenient to take out, and can suppress warping of the paper card.

[0010] To solve the above technical problems, the present utility model proposes the following solutions.

[0011] The battery blister package of the present utility model sequentially comprises a blister, a plastic film, and a paper card from top to bottom. The blister has a flat bottom, a battery accommodating portion protruding from the plane of the bottom, and a cut portion protruding from the plane of the bottom and communicating with the battery accommodating portion. The cut portion is arranged in such a way that the battery cannot enter the cut portion from the battery accommodating portion. The bottom of the blister is joined to the plastic film, and the plastic film is joined to the paper card. A dashed-line-shaped cutting line is formed on the plastic film below the battery accommodating portion and the cut portion. The cutting line extends from the cut portion to the battery accommodating portion, and the cutting line is not formed on the paper card.

[0012] Preferably, the cut portion satisfies the following conditions 1 and / or condition 2.

[0013] Condition 1: The length of the connecting portion connecting the cut portion and the battery accommodating portion is set to a length in which the battery cannot enter the cut portion from the battery accommodating portion.

[0014] Condition 2: The height of the aforementioned shearing portion protruding from the plane of the aforementioned bottom portion is set to a height at which the aforementioned battery cannot enter the aforementioned shearing portion from the aforementioned battery accommodating portion.

[0015] Preferably, the aforementioned cutting lines are linear, and the number of the aforementioned cutting lines is 1 to 3.

[0016] Preferably, the number of the aforementioned cutting lines is 2.

[0017] Preferably, in a plan view of the aforementioned battery blister pack observed from above the aforementioned blister, a midpoint of a connecting portion connecting the aforementioned shearing portion and the aforementioned battery accommodating portion and a center of the aforementioned battery accommodating portion are connected to become a connecting line, 2 of the aforementioned cutting lines are distributed on both sides of the aforementioned connecting line in parallel with the aforementioned connecting line, and the 2 of the aforementioned cutting lines are respectively close to both end portions of the connecting portion connecting the aforementioned shearing portion and the aforementioned battery accommodating portion.

[0018] Preferably, one end of the aforementioned cutting line is on a straight line perpendicular to the aforementioned connecting line and passing through the center of the aforementioned battery accommodating portion, and the other end of the aforementioned cutting line is close to an end portion of the aforementioned shearing portion on the side opposite to the aforementioned battery accommodating portion.

[0019] Preferably, the distance between the aforementioned cutting line on one side of the aforementioned connecting line and the end portion of the aforementioned connecting portion is 1 to 5 mm.

[0020] Preferably, the distance between the aforementioned other end of the aforementioned cutting line and the end portion of the aforementioned shearing portion on the side opposite to the aforementioned battery accommodating portion is 1 to 5 mm.

[0021] Preferably, the aforementioned bottom portion of the aforementioned blister and the aforementioned plastic film are joined by high-frequency welding, and the aforementioned plastic film and the aforementioned paper card are joined by an adhesive.

[0022] Preferably, the aforementioned battery is a button cell.

[0023] According to the aforementioned scheme of the present application, a battery blister pack having high safety and convenience of taking out and capable of suppressing warping of a paper card can be provided. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a schematic view of a paper card to which a plastic film is attached, which represents a battery blister pack of the present application.

[0025] Figure 2 is a cross-sectional schematic view along the A-A line of Figure 1 .

[0026] Figure 3 is a schematic view of one embodiment of a battery blister pack of the present application.

[0027] Figure 4 is a top view of the battery blister package Figure 3 is a top view of the battery blister package.

[0028] Reference signs

[0029] 1 paper card, 2 plastic film, 21 cutting line, 3 blister bubble, 31 bottom, 32 battery accommodating part, 33 cutting part, 34 connecting part, 35 connecting line DETAILED DESCRIPTION

[0030] The battery blister package of the utility model has blister bubble, plastic film and paper card from top to bottom, the blister bubble has flat bottom, battery accommodating part protruding from the plane of the bottom, and cutting part protruding from the plane of the bottom and communicating with the battery accommodating part, the cutting part is arranged in a way that the battery cannot enter the cutting part from the battery accommodating part, the bottom of the blister bubble is jointed with the plastic film, and the plastic film is jointed with the paper card, wherein, the cutting line in the form of dotted line is formed on the plastic film below the battery accommodating part and the cutting part, the cutting line extends from the cutting part to the battery accommodating part, and the cutting line is not formed on the paper card.

[0031] The battery blister package of the utility model forms the cutting line on the plastic film, so when the user cuts the cutting part along the cutting line and tears the blister bubble and the paper card with the plastic film, the paper card can be easily separated along the cutting line. Thus, compared with the previous package without the cutting line, the battery can be taken out relatively easily. Especially when the joint of the blister bubble and the plastic film is very tight and a lot of force is needed to separate them, the effect of the above-mentioned solution of the utility model is more significant. Moreover, through the arrangement of the cutting line, the stress of the plastic film can be effectively eliminated, the adverse phenomenon of paper card warping can be greatly avoided, and the productivity can be improved.

[0032] Furthermore, the utility model has the characteristics that only the cutting line in the form of dotted line is formed on the plastic film, and the cutting line is not formed on the paper card. The reason for arranging the above-mentioned structure is that when the cutting line is also formed on the paper card, on the one hand, the strength of the whole battery blister package is poor, which leads to poor safety, and on the other hand, the sealing property of the package is poor, which may cause the battery to deteriorate easily when stored for a long time. Through the above-mentioned structure, the battery can be easily taken out, the safety of the whole package can be ensured, and the risk of battery deterioration can be reduced.

[0033] In the present utility model, the shape of the shearing part can be properly set according to the need, and as long as the battery stored in the battery accommodating part cannot enter the shearing part from the battery accommodating part. As a preferred example, for example, the shearing part satisfies the following conditions 1 and / or condition 2. Condition 1: the length of the connecting part connecting the shearing part and the battery accommodating part is set to the length that the battery cannot enter the shearing part from the battery accommodating part; Condition 2: the height of the shearing part protruding from the plane of the bottom is set to the height that the battery cannot enter the shearing part from the battery accommodating part.

[0034] In the present utility model, the cutting line in the dashed line shape can be formed by various methods without particular limitation. For example, it can be cut by a serrated knife or punched by a punching device. The shape of the cutting line can be properly set according to the need. For example, the shape of the cutting line can be linear or curved. From the aspect of easily tearing the paper card, the cutting line is preferably linear. The number of the cutting line can be set according to the need. Using an appropriate number of cutting lines helps to balance the safety of the packaging body and the convenience of taking out the battery, and can effectively avoid the adverse phenomenon of paper card warping and improve productivity. From this point, the number of the cutting line is preferably 1-3, and most preferably 2. In addition, the setting position of the cutting line can be set according to the need.

[0035] As a preferred setting mode of the cutting line of the present utility model, it is preferred to be set in the following way: the shape of the cutting line is linear, the number is 2, in the top view of the battery blister packaging body observed from the top of the blister bubble, the midpoint of the connecting part connecting the shearing part and the battery accommodating part and the center of the battery accommodating part are connected to become a connecting line, the two cutting lines are distributed on both sides of the connecting line in parallel with the connecting line, and the two cutting lines are respectively close to the two end parts of the connecting part connecting the shearing part and the battery accommodating part. The "close to" here means that the distance between the cutting line and the end part of the connecting line is closer to the end part of the connecting line than the distance between the connecting line and the end part of the connecting line, but the cutting line does not contact the end part of the connecting line. According to the above preferred mode, the safety of the packaging body and the convenience of taking out the battery can be very effectively balanced. At the same time, such a setting mode will not affect the joint of the blister bubble and the plastic film. Specifically, when the cutting line enters the joint part of the bottom of the blister bubble and the plastic film, if the two are joined by high-frequency welding, for example, the joint may not be firm, thereby causing the safety of the whole packaging body to be poor. Furthermore, in order to more reliably ensure the excellent safety of the packaging body and the convenience of taking out the battery, the distance between the cutting line and the end part of the connecting part on one side of the connecting line is preferably 1-5 mm, and more preferably 2-3 mm.

[0036] In addition, as a preferred arrangement of the cutting line, one end of the cutting line is preferably located on a straight line perpendicular to the connecting line and passing through the center of the battery accommodating portion, and the other end of the cutting line is close to the end of the shearing portion opposite to the battery accommodating portion. The "close" here means that the other end of the cutting line is close to the end of the shearing portion, but the cutting line does not contact the end of the shearing portion. According to the preferred arrangement, the safety of the packaging body and the convenience of the battery extraction can be effectively balanced. Specifically, if the cutting line is too long in the battery accommodating portion, the battery may jump out of the packaging body when the blister and the paper card are torn, and if the cutting line is too short in the battery accommodating portion, the convenience of the battery extraction is correspondingly poor; in addition, if the cutting line is too long in the shearing portion and enters the bottom of the blister, the joint between the bottom of the blister and the plastic film is not good, and if the cutting line is too short in the shearing portion, the shearing is not good and the convenience of the battery extraction is easily poor. In order to more reliably ensure the effect of excellent safety of the packaging body and the convenience of the battery extraction, the distance between the other end of the cutting line and the end of the shearing portion opposite to the battery accommodating portion is preferably 1-5 mm, and more preferably 2-3 mm.

[0037] In the utility model, the plastic film can be provided with an adhesive such as hot melt adhesive on both sides, the bottom of the blister and the paper card are joined with the plastic film via the adhesive, the bottom of the blister and the plastic film can also be joined by high-frequency welding, thereby improving the joint strength between the blister and the plastic film, but are not limited thereto. In addition, the plastic film can be formed into a composite structure including at least an upper layer and a lower layer, wherein no adhesive is provided between the upper layer of the plastic film adjacent to the blister and the bottom of the blister. At this time, the upper layer is preferably made of the same material as the lowermost layer of the blister, so that the blister and the plastic film can be joined by high-frequency welding, and the safety and reliability of the battery blister packaging body are improved due to the high joint strength.

[0038] The battery blister packaging body of the utility model can be used for packaging various batteries, and is particularly suitable for small batteries such as button batteries.

[0039] One preferred embodiment of the battery blister packaging body of the utility model will be described below with reference to the drawings.

[0040] Figure 1 is a schematic view of a paper card of the battery blister packaging body of the utility model to which a plastic film is attached. Figure 1A plastic film 2 is attached to a paper card (not labeled as it is located below the plastic film). A dashed cutting line 21 is formed on the plastic film 2 by cutting it. The cutting line 21 can be formed by cutting the plastic film 2 after it has been attached to the paper card, or the cutting line 21 can be formed on the plastic film 2 beforehand, and then the plastic film 2 with the cutting line 21 is joined to the paper card.

[0041] Figure 2 It means along Figure 1 A schematic diagram of the cross-section of line AA. Figure 2 The image shows an enlarged view of the discontinuous connection of the plastic film at the cutting line 21.

[0042] Figure 3 This is a perspective view illustrating one embodiment of the battery blister packaging of this utility model. Figure 4 It means Figure 3 The image shows a top view of the battery blister pack, specifically a top view of the battery blister pack viewed from above the blister shell 3. This battery blister pack is used to package round button batteries. The battery blister pack includes: a paper card 1, a plastic film 2, and a blister shell 3. The blister shell 3 includes a bottom 31, a battery receiving portion 32, and a cutting portion 33.

[0043] The battery receiving portion 32 is circular and protrudes from the plane of the bottom 31 to accommodate a circular button battery. The cutting portion 33 protrudes from the plane of the bottom 31 and communicates with the battery receiving portion 32. The length of the connecting portion 34 connecting the cutting portion 33 and the battery receiving portion 32 is set to a length that prevents the button battery from entering the cutting portion 33 from the battery receiving portion 32, and the height of the protrusion of the cutting portion 33 from the plane of the bottom 31 is set to a height that prevents the button battery from entering the cutting portion 33 from the battery receiving portion 32. The length of the end of the cutting portion 33 opposite to the battery receiving portion 32 is longer than the length of the connecting portion 34 of the cutting portion 33. Thus, while preventing the battery from entering the cutting portion 33 from the battery receiving portion 32, it is also convenient to separate the blister pack 3 from the cardboard 1 and the plastic film 2 by hand after cutting the cutting portion 33.

[0044] The bottom 31 of the blister pack 3 is joined to the plastic film 2 by high-frequency welding. The plastic film 2 is joined to the paper card 1 by hot melt adhesive.

[0045] like Figure 4As shown, two cutting lines 21 are formed on the plastic film 2 below the blister 3, the midpoint of the connecting part 34 connecting the cutting part 33 and the battery accommodating part 32 is connected with the center (i.e. the center of the circle) of the battery accommodating part 32 to become a connecting line 35, the two cutting lines 21 are distributed on both sides of the connecting line 35 in parallel with the connecting line 35, and the two cutting lines 21 are respectively close to the two end parts of the connecting part 34 connecting the cutting part 33 and the battery accommodating part 32. Furthermore, one end of the cutting line 21 is located on a straight line perpendicular to the connecting line 35 and passing through the center of the battery accommodating part 32, and the other end of the cutting line 21 is close to the end part of the cutting part 33 opposite to the battery accommodating part 32.

[0046] Since the cutting line 21 is not arranged in the area where the bottom 31 is located, it will not affect the joint of the blister 3 and the plastic film 2, so as to ensure the safety of the packaging body.

[0047] Furthermore, since the cutting line 21 is distributed on both sides of the connecting line 35 in parallel with the connecting line 35, and one end of the cutting line 21 is located on a straight line perpendicular to the connecting line 35 and passing through the center of the battery accommodating part 32, and the other end of the cutting line 21 is close to the end part of the cutting part 33 opposite to the battery accommodating part 32, so as to easily tear the blister and the paper card apart, and to avoid the battery bouncing out when tearing the paper card.

[0048] In addition, although not shown, a cutting line perpendicular to and intersecting the cutting line 21 can be drawn on the paper card 1 at the cutting part 33. Thus, the user can tear the cutting part along the cutting line, and then easily tear the blister and the paper card apart.

[0049] In addition, for the battery blister packaging body shown in Figure 3 and Figure 4 In order to determine its safety, the battery blister packaging body is also tested according to the standard GB / T 8897.1-2021. Specifically, the test is carried out in the manner of bending test 50 times → torsion test 50 times → tearing test 1 time → torsion test 50 times → bending test 50 times → tearing test 1 time → pushing test 1 time.

[0050] The result of the above test is that the button cell does not fly out of the battery blister packaging body. Therefore, the safety of the battery blister packaging body is very excellent, meeting the requirements.

[0051] The above describes the specific form of the battery packaging body of the utility model through the drawings, but the utility model is not limited to the above-mentioned embodiments, and various modifications and element changes can be made within the scope of the utility model.

Claims

1. A battery blister package comprising, in order from the top, a blister, a plastic film, and a paper card, the blister having a flat bottom, a battery accommodating portion protruding from the plane of the bottom, and a shear portion protruding from the plane of the bottom and communicating with the battery accommodating portion, the shear portion being disposed in such a manner that a battery cannot enter the shear portion from the battery accommodating portion, the bottom of the blister being joined to the plastic film, and the plastic film being joined to the paper card, characterized in that, A dotted line-shaped cutting line is formed on the plastic film below the battery accommodating portion and the shear portion, the cutting line extending from the shear portion to the battery accommodating portion, and the cutting line is not formed on the paper card.

2. The battery blister pack of claim 1, wherein, The shear portion satisfies the following condition 1 and / or condition 2, Condition 1: a length of a connecting portion connecting the shear portion and the battery accommodating portion is set to a length in which the battery cannot enter from the battery accommodating portion into the shear portion, Condition 2: a height of the shear portion protruding from the plane of the bottom portion is set to a height in which the battery cannot enter from the battery accommodating portion into the shear portion.

3. The battery blister pack of claim 1, wherein, The cutting line is linear, and the number of the cutting lines is 1 to 3.

4. The battery blister pack of claim 3, wherein, The number of the cutting lines is 2.

5. The battery blister pack of claim 4, wherein, In a plan view of the battery blister pack observed from above the blister, a midpoint of a connecting portion connecting the shear portion and the battery accommodating portion and a center of the battery accommodating portion are connected to become a connecting line, two cutting lines are distributed on both sides of the connecting line in parallel with the connecting line, and the two cutting lines are respectively close to both end portions of the connecting portion connecting the shear portion and the battery accommodating portion.

6. The battery blister pack of claim 5, wherein, One end of the cutting line is on a straight line perpendicular to the connecting line and passing through the center of the battery accommodating portion, and the other end of the cutting line is close to an end portion of the shear portion on the side opposite to the battery accommodating portion.

7. The battery blister pack of claim 5, wherein, A distance between the cutting line on one side of the connecting line and the end portion of the connecting portion is 1 to 5 mm.

8. The battery blister pack of claim 6, wherein, A distance between the other end of the cutting line and the end portion of the shear portion on the side opposite to the battery accommodating portion is 1 to 5 mm.

9. The battery blister pack of claim 1, wherein, The bottom portion of the blister and the plastic film are joined by high-frequency welding, and the plastic film and the paper card are joined by an adhesive.

10. The battery blister pack of claim 1, wherein, The battery is a coin battery.

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