Button cell packaging structure
By designing the packaging can, sealing cap, and separator paper, the problem of button batteries falling off and getting damp during transportation and in high humidity is solved, achieving stable battery removal and moisture protection, and improving service life.
Patent Information
- Application Number
- CN202520232781.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-13
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-02-13
AI Technical Summary
Existing button battery packaging structures are prone to battery detachment and rusting during transportation and in high humidity, and it is also difficult to remove the batteries one by one.
The packaging can consists of two sealed caps, several button batteries, and separator paper. The sealed caps are embedded into the inner hole through a locking section and an inlet section. The separator paper is fixed between the button batteries. The cushioning component is used to buffer the batteries and ensure that they are not easily dislodged and are protected from moisture.
It enables the individual removal and sealing of batteries, preventing them from falling off and getting damp. The structure is stable and easy to transport, reduces space occupation, and improves service life.
Smart Images

Figure CN223791989U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a packaging structure, and more particularly to a button battery packaging structure. Background Technology
[0002] A button cell battery, also known as a coin cell battery, is a type of battery that is shaped like a small button, typically with a larger diameter and a thinner thickness.
[0003] As shown in patent CN307027773S, existing button battery packaging structures typically involve covering the back of a plastic casing with a layer of wrapping paper. The button battery is housed within the space enclosed by the plastic casing and the wrapping paper. To use the battery, the wrapping paper is torn off, and then the button battery is removed. However, with this type of packaging structure, if multiple button batteries are installed in a single plastic casing, tearing off the wrapping paper can easily cause other button batteries to fall off. To overcome this defect, some manufacturers use a structure similar to that shown in patent CN 212150002 U, where a cross-shaped slit is made in the wrapping paper corresponding to the installation position of each button battery. When it is necessary to remove one button battery, the cross-shaped slit corresponding to that button battery is torn open, and the button battery is removed. However, the cross-shaped slit is easily torn open during transportation and packaging, causing the button battery to fall off. In high humidity conditions, the battery is prone to moisture and rust. Utility Model Content
[0004] Therefore, it is necessary to provide a button cell battery packaging structure to address the shortcomings of existing technologies.
[0005] A button battery packaging structure includes a packaging can, two sealing caps, a plurality of button batteries, and a plurality of separator papers. The two sealing caps are respectively installed on the front and rear sides of the packaging can, and the packaging can and the two sealing caps enclose an inner space. The button batteries and separator papers are disposed in the inner space, and the button batteries are arranged along the extension direction of the inner space and are oriented in the same direction. The separator paper is disposed between two button batteries. The sealing cap includes a cover plate and a sealing plug connected to the cover plate. The sealing is segmented, and the sealing plug includes a locking section and a guiding section coaxially disposed. The locking section is connected to the cover plate, and the guiding section is connected to the locking section. The guiding section has an inclined guide surface. The packaging can has an inner hole that extends through the packaging can along the overall extension direction of the packaging can. During installation, the inclined guide surface provides auxiliary guidance, and the locking section of the sealing cap engages with the inner hole.
[0006] In one embodiment, the separator paper includes a first functional layer and a second functional layer, wherein the first functional layer is an insulating paper layer and the second functional layer is an adhesive layer, and the separator paper can be fixed to the button battery by the adhesive layer.
[0007] In one embodiment, the sealing plug has a functional hole that extends inward from the bottom surface of the sealing plug away from the cover plate. The button battery packaging structure also includes a cushioning member, one end of which is inserted into the functional hole of the sealing cover, and the other end of which extends out from the functional hole.
[0008] In one embodiment, the cushioning element is made of one of sponge, cotton, or silicone.
[0009] In one embodiment, one end of the sealing plug is connected to the center of the inner side of the cover plate.
[0010] In one embodiment, the outer diameter of the cover plate is larger than the outer diameter of the sealing plug.
[0011] In one embodiment, the cover plate has a plurality of concentrically arranged ribs on the side away from the sealing plug.
[0012] In one embodiment, the outer diameter between the ribs increases sequentially, and the central axis of the cover plate coincides with the central axis enclosed by the ribs.
[0013] In one embodiment, the outer diameter of the guide section gradually contracts from the direction away from the locking section, thereby forming an inclined guide surface.
[0014] In one embodiment, the packaging can is configured as a hollow cylindrical tube, with the inner hole being circular.
[0015] The advantages of this button battery packaging structure are as follows: By setting up a packaging can, two sealing caps, several button batteries, and several separator papers, the two sealing caps are respectively installed on the front and rear sides of the packaging can, forming an inner space. The button batteries and separator papers are placed within this inner space, with the button batteries facing the same direction. The separator papers are placed between two button batteries, separating adjacent batteries. When it is necessary to remove a button battery, one sealing cap is opened from the packaging can, the button battery is removed, and then the sealing cap is closed to seal the remaining button batteries in the packaging can. This invention facilitates the individual removal and sealing of button batteries in the packaging can. Furthermore, the packaging structure composed of the packaging can and two sealing caps is not easily damaged, occupies little space, is convenient for transportation and storage, is highly practical, and has good moisture-proof properties, thus improving product lifespan. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the button battery packaging structure of this utility model;
[0017] Figure 2 for Figure 1 An exploded view of the button battery packaging structure shown.
[0018] Figure 3 for Figure 2 A schematic diagram of the sealing cap of the button battery packaging structure shown;
[0019] Figure 4 for Figure 2 A cross-sectional view of the separator paper in the button battery packaging structure shown. Detailed Implementation
[0020] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0022] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0025] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0026] Please see Figures 1 to 4 This utility model provides a button battery packaging structure, including a packaging can 10, two sealing caps 20, a plurality of button batteries 30, and a plurality of separator papers 40. The two sealing caps 20 are respectively installed on the head and tail sides of the packaging can 10. The packaging can 10 and the two sealing caps 20 enclose an inner space. The button batteries 30 and the separator papers 40 are disposed in the inner space. The button batteries 30 are arranged along the extension direction of the inner space, and the button batteries 30 are oriented in the same direction. The separator papers 40 are disposed between two button batteries 30.
[0027] The packaging can 10 is generally arranged in the shape of a hollow cylindrical tube, and the packaging can 10 has a circular inner hole 11 inside, which extends through the packaging can 10 along the overall extension direction of the packaging can 10.
[0028] The sealing cover 20 includes a cover plate 21 and a sealing plug 22 connected to the cover plate 21. One end of the sealing plug 22 is connected to the center of the inner side of the cover plate 21. The outer diameter of the cover plate 21 is larger than the outer diameter of the sealing plug 22. The sealing plug 22 is provided with a functional hole 23, which extends inward from the bottom surface of the sealing plug 22 away from the cover plate 21. The cover plate 21 is provided with a plurality of concentrically arranged ribs 24 on the side away from the sealing plug 22. The outer diameters of the ribs 24 increase sequentially. The central axis of the cover plate 21 coincides with the central axis enclosed by the ribs 24. In this embodiment, the sealing plug 22 is segmented. The sealing plug 22 includes a coaxially arranged locking section 221 and a guide section 222. The locking section 221 is connected to the cover plate 21, and the guide section 222 is connected to the locking section 221. The outer diameter of the guide section 222 gradually narrows from the direction away from the locking section 221, thereby forming a sloping guide surface.
[0029] The separator paper 40 includes a first functional layer 41 and a second functional layer 42, wherein the first functional layer 41 is an insulating paper layer and the second functional layer 42 is an adhesive layer. The adhesive layer has a certain degree of stickiness so that the separator paper 40 can be fixed to the button battery 30.
[0030] During assembly, a separator paper 40 is first installed on each button battery 30, with the adhesive layer on the separator paper 40 fixed to the negative terminal of the button battery 30. One sealing cap 20 is then installed at one end of the packaging can 10. During installation, the guide section 222 of the sealing cap 20 is inserted into the inner hole 11 of the packaging can 10. During insertion, a beveled guide surface provides auxiliary guidance. Further insertion occurs as the locking section 221 of the sealing cap 20 engages with the inner hole 11, and the cover plate 21 of the sealing cap 20 is secured at the opening of the inner hole 11. Next, the button batteries 30 with the separator paper 40 are placed one by one inside the packaging can 10, ensuring they face the same direction. The separator paper 40 separates adjacent button batteries 30 to isolate the circuit between them. Finally, the other sealing cap 20 is installed at the other end of the packaging can 10.
[0031] In addition, this utility model also includes two cushioning members 50. The cushioning members 50 are made of one of sponge, cotton, or silicone. One end of the cushioning member 50 is inserted into the functional hole 23 of the sealing cap 20, and the other end of the cushioning member 50 extends out of the functional hole 23. The cushioning member 50 extending out of the functional hole 23 can provide elastic cushioning for the button battery 30, reducing the impact force on the button battery 30 when the packaging can 10 is shaken up and down.
[0032] The beneficial effects of this button battery packaging structure are as follows: By setting up a packaging can 10, two sealing caps 20, several button batteries 30, and several separator papers 40, the two sealing caps 20 are respectively installed on the front and rear sides of the packaging can 10. The packaging can 10 and the two sealing caps 20 enclose an inner space. The button batteries 30 and the separator papers 40 are placed in the inner space, with the button batteries 30 facing the same direction. The separator papers 40 are placed between two button batteries 30 and separate adjacent button batteries 30. When it is necessary to remove a button battery 30, one of the sealing caps 20 is opened from the packaging can 10, the button battery 30 is removed, and then the sealing cap 20 is closed to seal the other button batteries 30 in the packaging can 10. This utility model facilitates the removal and sealing of the button batteries 30 in the packaging can 10 one by one. At the same time, the packaging structure composed of the packaging can 10 and the two sealing caps 20 is not easily damaged, occupies little space, is convenient for transportation and storage, is highly practical, and has good moisture-proof effect, thus improving the product's service life.
[0033] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A button battery packaging structure, characterized in that, The device includes a packaging can, two sealing caps, several button batteries, and several separator papers. The two sealing caps are respectively installed on the front and rear sides of the packaging can, forming an inner space. The button batteries and separator papers are placed in the inner space, with the button batteries arranged along the extension direction of the inner space and facing the same direction. The separator paper is placed between two button batteries. Each sealing cap includes a cover plate and a sealing plug connected to the cover plate. The sealing is segmented, and the sealing plug includes a locking section and a guiding section coaxially arranged. The locking section is connected to the cover plate, and the guiding section is connected to the locking section. The guiding section has an inclined guide surface. The packaging can has an inner hole that extends through the packaging can along its overall extension direction. During installation, the inclined guide surface provides auxiliary guidance, and the locking section of the sealing cap engages with the inner hole.
2. The button battery packaging structure according to claim 1, characterized in that, The separator paper includes a first functional layer and a second functional layer, wherein the first functional layer is an insulating paper layer and the second functional layer is an adhesive layer, and the separator paper can be fixed to the button battery through the adhesive layer.
3. The button battery packaging structure according to claim 1, characterized in that, The sealing plug has a functional hole that extends inward from the bottom surface of the sealing plug away from the cover plate. The button battery packaging structure also includes a cushioning element, one end of which is inserted into the functional hole of the sealing cover, and the other end of which extends out from the functional hole.
4. The button battery packaging structure according to claim 3, characterized in that, The cushioning component is made of one of the following materials: sponge, cotton, or silicone.
5. The button battery packaging structure according to claim 1, characterized in that, One end of the sealing plug is connected to the center of the inner side of the cover plate.
6. The button battery packaging structure according to claim 1, characterized in that, The outer diameter of the cover plate is larger than the outer diameter of the sealing plug.
7. The button battery packaging structure according to claim 1, characterized in that, The cover plate has several concentrically arranged ribs on the side away from the sealing plug.
8. The button battery packaging structure according to claim 7, characterized in that, The outer diameter between the ribs increases sequentially, and the central axis of the cover plate coincides with the central axis enclosed by the ribs.
9. The button battery packaging structure according to claim 1, characterized in that, The outer diameter of the guide section gradually contracts from the direction away from the positioning section, thereby forming an inclined guide surface.
10. The button battery packaging structure according to claim 1, characterized in that, The packaging can is a hollow cylindrical tube with a circular inner hole.