Packaging apparatus and auxiliary structure for packaging filmless cylindrical batteries
By designing auxiliary structures for unprotected cylindrical batteries, including positioning plates and handle assemblies, the problems of battery shaking and short circuits during packaging were solved, achieving stable packaging and safety of batteries during transportation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TIANPENG LITHIUM ENERGY TECH (HUAIAN) CO LTD
- Filing Date
- 2025-01-13
- Publication Date
- 2026-07-07
AI Technical Summary
In the existing technology, cylindrical batteries without protective films are prone to shaking and rolling during packaging, which can lead to short circuit risks. In particular, they cannot effectively prevent batteries from coming into contact with each other during transportation, thus causing safety hazards.
Design an auxiliary structure including a first positioning plate, a handle assembly, and a connecting plate. The upper part of the battery is limited by the through hole on the positioning plate. Combined with the limiting and lifting functions of the handle assembly, the box body is prevented from deforming, ensuring that the battery does not roll off during transportation. The precise positioning of the positioning plate also prevents short circuits.
It effectively prevents batteries from rolling and short-circuiting during transportation, increases operational convenience, and improves the safety and stability of battery packaging.
Smart Images
Figure CN119911536B_ABST
Abstract
Description
Technical Field
[0001] This specification relates to the field of battery packaging technology, and in particular to a packaging device and auxiliary structure for packaging cylindrical batteries without protective film. Background Technology
[0002] To address battery shipping issues, most manufacturers currently use cardboard boxes with blister packs at the bottom. Batteries are manually placed into the box during shipping, and the blister pack positions the batteries. However, most existing blister packs are standard sizes, which only ensure battery positioning and cannot solve the problem of battery movement during loading.
[0003] For batteries with an insulating outer sleeve, there is no risk of short circuit even if they roll out of the blister pack and come into contact with each other during shaking. However, for batteries without an insulating sleeve, which are in demand in the market, shaking is unavoidable during the packaging process and before sealing. If a battery tilts or falls out of the blister pack's positioning slot, it is highly likely to come into contact with each other, causing a short circuit and creating a safety hazard. Summary of the Invention
[0004] In view of the shortcomings of the prior art, one object of this specification is to provide a packaging device and auxiliary structure for packaging cylindrical batteries without protective film, which can prevent the batteries from rolling off, reduce the risk of short circuits, and increase the convenience of operation.
[0005] To achieve the above objectives, this specification provides an auxiliary structure for packaging unprotected cylindrical batteries, which is installed at the upper end of a box containing the unprotected cylindrical batteries to achieve packaging of the unprotected cylindrical batteries; the auxiliary structure includes:
[0006] A first positioning plate is provided with a plurality of through holes for embedding and placing the battery; the first positioning plate is disposed inside the box body;
[0007] A handle assembly is disposed around the first positioning plate. The handle assembly includes a limiting plate and a carrying plate. The limiting plate has a first plane and a second plane for abutting against the upper end surface of the box. The carrying plate is fixedly connected to the outside of the limiting plate and is disposed on the outside of the box.
[0008] A connecting plate is fixedly mounted on the first positioning plate for connecting the first positioning plate and the handle assembly; the limiting plate is rotatably connected to the outside of the connecting plate via a rotating shaft; the distance from the first plane to the rotating shaft is greater than the distance from the second plane to the rotating shaft.
[0009] In a preferred embodiment, the size of the first positioning plate is equal to the size of the inner frame of the box, the thickness of the limiting plate is equal to the thickness of the side wall of the box, the inner surface of the carrying handle is in contact with the outer surface of the box, and the connecting plate is located inside the box.
[0010] In a preferred embodiment, when the first plane abuts against the upper end face of the box, the upper surface of the first positioning plate is flush with the upper end face of the box, and the upper end of the battery is located inside the through hole.
[0011] In a preferred embodiment, when the second plane abuts against the upper surface of the box, the upper surface of the first positioning plate is lower than the upper surface of the box, and the upper end of the battery extends out of the through hole.
[0012] In a preferred embodiment, the first plane and the second plane are perpendicular to each other, and the length of the second plane is greater than the length of the first plane.
[0013] In a preferred embodiment, a positioning plunger is fixedly connected to the limiting plate, and a plunger ball head is provided at the end of the positioning plunger away from the carrying plate. A spring that abuts against the plunger ball head is fixedly provided inside the positioning plunger; a first groove is provided on the connecting plate for the plunger ball head to be embedded in.
[0014] In a preferred embodiment, there are two positioning plungers symmetrically arranged on both sides of the rotating shaft; there are three first grooves arranged in a 90° array around the circumference of the rotating shaft; when the first plane abuts against the upper end surface of the housing, the plunger ball of one of the positioning plungers is embedded in one of the first grooves located below the rotating shaft; when the second plane abuts against the upper end surface of the housing, the plunger ball of the two positioning plungers is respectively embedded in the two first grooves located on both sides of the rotating shaft.
[0015] In a preferred embodiment, when the first plane abuts against the upper end face of the housing, the through hole can accommodate the upper end of the first battery and the lower end of the second battery, with the first battery located below the second battery; the line connecting the outer edge of the positive terminal of the upper end of the first battery and the outer edge of the top layer of the negative electrode shell forms a first angle with the horizontal plane, and the bottom plane of the second battery forms a second angle N with the horizontal plane, tanN=(DB) / L, where D represents the diameter of the through hole, B represents the length of the projection of the diameter of the second battery onto the horizontal plane, and L represents the distance from the upper end face of the first battery to the upper surface of the first positioning plate; the diameter and height of the through hole are configured such that the first angle is greater than the second angle.
[0016] In a preferred embodiment, the first positioning plate is rectangular, and the plurality of through holes on the first positioning plate are evenly arranged in an array; there are four handle assemblies, which are respectively disposed at the center of the four sides of the first positioning plate.
[0017] This specification also provides a packaging device for packaging cylindrical batteries without protective film, comprising: a box body, and auxiliary structures for packaging cylindrical batteries without protective film as described in any of the above embodiments.
[0018] In a preferred embodiment, the packaging device for packaging cylindrical batteries without protective film further includes a second positioning plate, which is fixedly disposed in the box body and located at the bottom of the box body. The second positioning plate is provided with a plurality of second grooves for accommodating the bottom of the battery, and the through holes correspond one-to-one with the second grooves.
[0019] The protective film in the unprotected cylindrical battery described in this invention refers to an external protective film, which is typically adhesive and made of commercially available organic polymer materials (such as plastics or tape). The main function of the external protective film is to completely cover the entire cylindrical battery casing for insulation. The unprotected cylindrical battery in this invention refers to a cylindrical battery whose surface does not have the aforementioned external protective film. In general terminology, the unprotected cylindrical battery can also be called a bare-cased cylindrical battery. Beneficial effects
[0020] The auxiliary structure for packaging unprotected cylindrical batteries provided in this embodiment includes a first positioning plate with a handle assembly. The through-hole on the first positioning plate allows for the placement of the battery, thereby limiting the upper part of the battery. This prevents the battery from rolling off during transport due to shaking of the battery-containing box. Furthermore, the handle assembly allows the first positioning plate to be placed inside the box, restricting inward deformation of the box. A carrying handle connected to the first positioning plate, located on the outside of the box, restricts outward deformation. The sidewall of the box is held in place by the gap between the first positioning plate and the carrying handle, ensuring accurate positioning of the through-hole. Additionally, using this auxiliary structure to package unprotected cylindrical batteries prevents them from rolling off, reduces the risk of short circuits, and increases operational convenience.
[0021] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope as a result.
[0022] Features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments.
[0023] It should be emphasized that the term "including / comprises" as used herein refers to the presence of a feature, whole, step, or component, but does not exclude the presence or addition of one or more other features, wholes, steps, or components. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Figure 1 This is a structural schematic diagram of a box and a second positioning plate provided in this embodiment;
[0026] Figure 2 This is a schematic diagram of an auxiliary structure for packaging cylindrical batteries without protective films, provided in this embodiment.
[0027] Figure 3 This is a schematic diagram of the structure of a handle assembly provided in this embodiment;
[0028] Figure 4 A schematic diagram of the packaging device containing a cylindrical battery without a protective film when the first plane abuts against the upper surface of the box;
[0029] Figure 5 A schematic diagram of the packaging device containing a cylindrical battery without a protective film when the second plane abuts against the upper surface of the box;
[0030] Figure 6 This is a schematic diagram of a structure where two batteries are located within the same through-hole.
[0031] Figure 7 for Figure 6 A magnified view of part A, showing the second battery at its maximum tilt angle;
[0032] Figure 8 This is a schematic diagram of the structure of a positioning plunger provided in this embodiment;
[0033] Figure 9 for Figure 7 A simplified schematic diagram of the through hole.
[0034] Explanation of reference numerals in the attached figures:
[0035] 1. Box body; 11. Upper end face; 2. Second positioning plate; 21. Second groove; 3. First positioning plate; 31. Through hole; 4. Handle assembly; 41. Limiting plate; 411. First plane; 412. Second plane; 42. Handle plate; 421. Inner surface; 5. Connecting plate; 51. First groove; 6. Rotating shaft; 7. Positioning plunger; 71. Plunger ball head; 10. Battery; 101. First battery; 111. Outer edge of positive terminal; 112. Outer edge of top layer of negative terminal shell; 102. Second battery; 121. Upper contact point; 122. Lower contact point. Detailed Implementation
[0036] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.
[0037] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or may be interposed with another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may be interposed with another element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementations.
[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0039] Please see Figures 2 to 8 This application provides an auxiliary structure for packaging unprotected cylindrical batteries. This structure is installed on the upper end of a housing 1 containing the unprotected cylindrical battery 10 to facilitate packaging. This auxiliary structure assists in the packaging process and needs to be removed after use; it is not included in the final packaged product. The auxiliary structure includes: a first positioning plate 3, a handle assembly 4, and a connecting plate 5.
[0040] In this embodiment, such as Figure 2 As shown, the first positioning plate 3 has multiple through holes 31 for the battery 10 to be embedded and placed. The first positioning plate 3 is located inside the box body 1, that is, the first positioning plate 3 is located inside the side wall of the box body 1, which can restrict the box body 1 from deforming inward.
[0041] like Figure 2 As shown, the handle assembly 4 is disposed on the periphery of the first positioning plate 3. Figure 3 As shown, the handle assembly 4 includes a limiting plate 41 and a carrying plate 42. The limiting plate 41 abuts against the upper end face 11 of the box body 1, thereby positioning the first positioning plate 3 inside the box body 1. Figure 2 and Figure 3 As shown, the limiting plate 41 has a first plane 411 and a second plane 412 for abutting against the upper end surface 11 of the box body 1. The carrying plate 42 is fixedly connected to the outside of the limiting plate 41. The carrying plate 42 is located outside the box body 1, and the position of the first positioning plate 3 can be adjusted by operating the carrying plate 42.
[0042] like Figure 2 As shown, the connecting plate 5 is fixedly mounted on the first positioning plate 3, and the handle assembly 4 is connected to the first positioning plate 3 via the connecting plate 5. The limiting plate 41 is rotatably connected to the outside of the connecting plate 5 via the rotating shaft 6, which can change the position of the first positioning plate 3. By rotating the handle plate 42, the limiting plate 41 is rotated, thereby raising and lowering the first positioning plate 3. The distance from the first plane 411 to the rotating shaft 6 is greater than the distance from the second plane 412 to the rotating shaft 6. Therefore, when the first plane 411 and the upper end surface 11 abut, the height of the first positioning plate 3 is higher than when the second plane 412 and the upper end surface 11 abut. This height difference allows the battery 10 to protrude from the through hole 31, thus facilitating the subsequent attachment of the insulating pad to the positive terminal of the battery 10.
[0043] The auxiliary structure for packaging unprotected cylindrical batteries provided in this embodiment includes a first positioning plate 3 with a handle assembly 4. The through-hole 31 on the first positioning plate 3 allows the battery 10 to be embedded and placed, thereby limiting the upper part of the battery 10. This prevents the battery 10 from rolling off during transport due to shaking in the box 1 containing the battery 10. Furthermore, the handle assembly 4 places the first positioning plate 3 inside the box 1, restricting inward deformation of the box 1. A carrying plate 42 connected to the first positioning plate 3 is located outside the box 1, restricting outward deformation. The sidewall of the box 1 is held in the gap between the first positioning plate 3 and the carrying plate 42, ensuring accurate positioning of the through-hole 31. Moreover, using this auxiliary structure to package unprotected cylindrical batteries prevents the battery 10 from rolling off, reduces the risk of short circuits, and increases operational convenience.
[0044] In this embodiment, the size of the first positioning plate 3 is equal to the inner frame size of the box body 1. That is, the periphery of the first positioning plate 3 abuts against the inner surface of the side wall of the box body 1, thereby strictly limiting the inward deformation of the box body 1 by the external dimensions of the first positioning plate 3. The first positioning plate 3 can be made of engineering plastic. The thickness of the limiting plate 41 is equal to the thickness of the side wall of the box body 1, thereby allowing the limiting plate 41 to be placed on the upper end face 11 of the side wall of the box body 1. The inner surface 421 of the handle 42 fits against the outer surface of the box body 1, thereby strictly limiting the outward deformation of the box body 1. The arrangement of the handle 42 and the limiting plate 41 achieves positional limitation of the first positioning plate 3 in the height direction within the box body 1. The connecting plate 5 is located inside the box body 1, that is, inside the side wall of the box body 1, thus not obstructing the lifting and lowering of the first positioning plate 3.
[0045] Specifically, the first positioning plate 3 is rectangular, and multiple through holes 31 on the first positioning plate 3 are evenly arranged in an array. There are four handle assemblies 4, which are respectively set at the center of the four sides of the first positioning plate 3, so that the first positioning plate 3 and the box body 1 are subjected to uniform force and achieve better packaging effect.
[0046] Depending on the shape of the box 1, such as if the box 1 is circular, elliptical, or other polygonal or irregular shapes, the first positioning plate 3 can, in principle, have the same shape as the box 1. However, in the actual assembly of this invention, the box 1 is square, therefore the first positioning plate 3 is also square. In fact, different shapes of the box 1 and the corresponding shapes of the first positioning plate 3 can also achieve the technical effects of this invention.
[0047] Regarding the above solution, the first positioning plate 3 can effectively further position the battery 10, preventing the packaging device containing the battery 10 from shaking and causing the battery 10 to roll off during overall transportation. However, regarding the above solution, on the production line for loading and unloading the battery 10, during the process of quickly loading a large number of batteries 10 into the box 1, it often happens due to operational errors that two batteries are placed in the same through hole 31 (two batteries placed one above the other, such as...). Figure 6 As shown), and because the diameter of the through hole 31 is larger than the outer diameter of the battery 10 in order to facilitate the battery 10 to pass smoothly through the through hole 31 of the first positioning plate 3, when two batteries are placed in the same hole, the second battery 102, which is on top, will most likely be tilted. At this time, its bottom will contact the positive and negative terminals of the top surface of the first battery 101, which is on the bottom. Figure 6 As shown, even if the two batteries only briefly touch, the batteries 10 without the protective film will again have a short circuit risk when they come into contact with each other. To avoid this phenomenon, the present invention further provides the following design.
[0048] like Figure 4As shown, when the limiting plate 41 rotates to the point where the first plane 411 abuts against the upper end face 11 of the box body 1, the limiting plate 41 is in a vertical state. The first positioning plate 3 is embedded in the box body 1 under the overall action of the handle assembly 4, and the sinking depth is relatively small. The upper surface of the first positioning plate 3 can be flush with the upper end face 11 of the box body 1, or slightly lower than the upper end face 11 of the box body 1. The upper surface of the first positioning plate 3 is higher than the upper surface of the battery 10, and the lower surface of the first positioning plate 3 is lower than the upper surface of the battery 10. At this time, after the battery 10 passes through the through hole 31 and is placed in the second groove 21 of the second positioning plate 2, the upper end of the battery 10 is located in the through hole 31. The second positioning plate 2 and the second groove 21 are described in detail below.
[0049] like Figure 5 As shown, when the limiting plate 41 rotates to the point where the second plane 412 abuts against the upper end face 11 of the box body 1, the limiting plate 41 is in a horizontal state. At this time, the first positioning plate 3 is embedded in the box body 1 under the overall action of the handle assembly 4, and the sinking depth is relatively large. The upper surface of the first positioning plate 3 is lower than the upper end face 11 of the box body 1. At this time, the upper end of the battery 10 protrudes out of the through hole 31. During the process of loading the battery 10 into the packaging device, the first plane 411 is first made to abut against the upper end face 11 of the box body 1, and then the battery 10 is placed into the through hole 31 and placed into the second groove 21 of the second positioning plate 2. After ensuring that there is only one battery 10 in each through hole 31, the first positioning plate 3 is sunk by the handle assembly 4. At this time, the second plane 412 abuts against the upper end face 11 of the box body 1, and the batteries 10 are uniformly exposed from the through hole 31, which facilitates the subsequent attachment of the insulating pad to the positive end of the battery 10. The second positioning plate 2 and the second groove 21 are described in detail below.
[0050] Specifically, the first plane 411 and the second plane 412 are perpendicular to each other, allowing the limiting plate 41 to rotate 90° relative to the connecting plate 5. The limiting plate 41 has two opposing first planes 411 and two opposing second planes 412. The width of both the first plane 411 and the second plane 412 (i.e., the thickness of the limiting plate 41) is equal to the thickness of the side wall of the box body 1. The length of the second plane 412 is greater than the length of the first plane 411, thus distinguishing the first plane 411 and the second plane 412. Furthermore, the area of the second plane 412 is greater than the area of the first plane 411, making the state of the packaging device more stable after packaging.
[0051] To better control the rotation of the limiting plate 41, a positioning plunger 7 is fixedly connected to the limiting plate 41. The positioning plunger 7 may have threads on its exterior for threaded connection with the limiting plate 41. Figure 8As shown, the positioning plunger 7 has a plunger ball head 71 at the end away from the handle plate 42, and a spring is fixedly installed inside the positioning plunger 7 to abut against the plunger ball head 71. One end of the spring is fixedly connected to the end of the positioning plunger 7 near the handle plate 42. The connecting plate 5 has a first groove 51 for the plunger ball head 71 to be embedded in. After the plunger ball head 71 is embedded in the first groove 51, it can position the limiting plate 41 and prevent the limiting plate 41 from rotating.
[0052] Specifically, there are two positioning plungers 7, symmetrically arranged on both sides of the rotating shaft 6. There are three first grooves 51, arranged in a 90° array around the circumference of the rotating shaft 6, with one first groove 51 located directly below the rotating shaft 6, and the other two first grooves 51 symmetrically located on both sides of the rotating shaft 6 in the horizontal direction. When the limiting plate 41 rotates, it causes the plunger ball heads 71 of the positioning plungers 7 to move against the surface of the connecting plate 5. When the first plane 411 abuts against the upper end face 11 of the box body 1, the plunger ball head 71 of one of the positioning plungers 7 is embedded in one of the first grooves 51 located below the rotating shaft 6; when the second plane 412 abuts against the upper end face 11 of the box body 1, the plunger ball heads 71 of the two positioning plungers 7 are respectively embedded in the two first grooves 51 located on both sides of the rotating shaft 6.
[0053] Furthermore, the size of the through hole 31 in the first positioning plate 3 is restricted, requiring a reduction in the diameter of the through hole 31 and an increase in its height. When the first plane 411 abuts against the upper end face 11 of the housing 1, the batteries 10 may stack vertically, such as... Figure 6 As shown, the through hole 31 can accommodate the upper end of the first battery 101 and the lower end of the second battery 102, with the first battery 101 located below the second battery 102. The line connecting the outer edge 111 of the positive terminal at the upper end of the first battery 101 and the outer edge 112 of the top layer of the negative terminal shell forms a first angle M with the horizontal plane. The bottom plane of the second battery 102 (i.e., the negative terminal encased in a steel shell, considered as a conductor) forms a second angle N with the horizontal plane. The second angle N is at its minimum of 0, at which point the second battery 102 is not tilted; the second angle N is at its maximum as... Figure 7 As shown, the second battery 102 is tilted at its maximum angle at this time, and two contact points are formed between the second battery 102 and the inner surface of the through hole 31, referred to in this embodiment as the upper contact point 121 and the lower contact point 122. In order to avoid the bottom plane of the second battery 102 contacting the positive and negative terminals of the first battery 101 simultaneously and causing a short circuit, the diameter and height of the through hole 31 are configured such that the first included angle M is greater than the second included angle N.
[0054] An external short circuit refers to a short circuit that occurs when the positive and negative terminals of a battery are in direct contact or connected through other conductors. The principle of an external short circuit is that when the positive and negative terminals of a battery are directly connected, current flows rapidly through the path between the two terminals, causing the internal voltage of the battery to drop rapidly and generating a large amount of heat. This high current and high heat flow can damage the internal materials of the battery and may even cause a fire or explosion.
[0055] In this example, the positive and negative terminals of the bare battery 10 are on the same side, and the negative terminal of the battery stacked on top (i.e., the second battery 102) is regarded as a conductor. If the tilt angle of the second battery 102 is too large, the positive and negative terminals of the first battery 101 will be connected by a conductor, resulting in an external short circuit.
[0056] like Figure 9 As shown, it is a simplified schematic diagram of a second battery 102 placed in an inclined state within the through hole 31, at which point the second included angle N is at its maximum. Figure 7 and Figure 9 In the diagram, D represents the diameter of the through hole 31, L represents the distance from the upper end face of the first battery 101 to the upper surface of the first positioning plate 3, d represents the diameter of the second battery 102, B represents the length of the projection of the diameter of the second battery 102 onto the horizontal plane, and α represents the angle between the wall of the through hole 31 and the wall of the second battery 102.
[0057] In this design, α and the second included angle N are similar angles, tanα = (DB) / L. Given that the inclination angle of the line connecting the height difference between the positive and negative terminals of the battery (i.e., the first included angle M) is approximately 3.6°, α < 3.6° can avoid external shorting. Since tan3.6° ≈ 0.063, we get (Dd) / L < 0.063. During the design, to facilitate the insertion of the battery 10 into the through hole 31, the value of D is generally 0.5mm to 1.0mm larger than d. Since the angle α is relatively small, d ≈ B, and the value of L is 8mm to 16mm.
[0058] During the process of loading the battery 10 into the packaging device, the first positioning plate 3 sinks only slightly within the box 1 (the lifting height of the first positioning plate 3 is equal to the difference between the distances of the first plane 411 and the second plane 412 and the rotating shaft 6, respectively). Even if two batteries fall into the same through hole 31 after the battery 10 is placed in, the size limitation design of the through hole 31 of the first positioning plate 3 creates a constraint force on the upper battery (i.e., the second battery 102), preventing the second battery 102 from simultaneously contacting the positive and negative terminals of the first battery 101 when tilted, effectively avoiding short circuits and greatly ensuring risk control during shipment. Afterwards, the staff corrected the error, ensuring that only one battery 10 was in each through hole 31, and then lowered the first positioning plate 3 using the handle assembly 4, so that all batteries 10 were exposed from the through holes 31, facilitating the subsequent attachment of the positive terminal of the battery 10 to the insulating pad.
[0059] Based on the same concept, this invention also provides a packaging device for packaging cylindrical batteries without protective films, as described in the following embodiments. Since the principle by which this packaging device solves the problem and the technical effects it can achieve are similar to those of the auxiliary structure described above, the implementation of this packaging device can refer to the implementation of the loading arm control device described above, and will not be repeated here.
[0060] One embodiment of the present invention also provides a packaging device for packaging cylindrical batteries without protective film, comprising: a box body 1, and an auxiliary structure as described in any of the above embodiments.
[0061] The box body 1 can be made of cardboard, which is environmentally friendly and economical. In other embodiments, the material of the box body 1 can also be selected as needed. The shape of the box body 1 is preferably a hollow cuboid with an opening at the top, which facilitates transportation and stacking. Of course, the box body 1 can be designed in different shapes as needed. The bottom of the box body 1 is flat. A top cover (not shown) can be provided on the top of the box body 1. After the battery 10 is installed, the top cover covers the opening at the top of the box body 1.
[0062] like Figure 1 As shown, the packaging device may further include a second positioning plate 2. The second positioning plate 2 is fixedly disposed inside the box body 1 and located at the bottom of the box body 1. The second positioning plate 2 has a plurality of second grooves 21 for accommodating the bottom of the battery 10. Specifically, the second positioning plate 2 can be a blister pack to reduce the cost of the packaging device. A first positioning plate 3 is disposed above the second positioning plate 2 located at the bottom of the box body 1. The through holes 31 correspond one-to-one with the second grooves 21 to limit the positioning of the battery 10. The positions of the second grooves 21 and the through holes 31 are consistent, corresponding one-to-one.
[0063] The packaging device for packaging cylindrical batteries without protective film provided in this embodiment not only has a second positioning plate 2 at the bottom of the box body 1, and the second groove 21 on the second positioning plate 2 can accommodate the bottom of the battery 10 and limit the bottom of the battery 10, but also has a first positioning plate 3 with a handle assembly 4. The first positioning plate 3 is located above the second positioning plate 2, and the through holes 31 on the first positioning plate 3 correspond one-to-one with the second groove 21, allowing the battery 10 to be embedded and placed, thereby limiting the upper part of the battery 10. On the one hand, it prevents the box body 1 containing the battery 10 from shaking and causing the battery 10 to roll off during the overall transportation process. On the other hand, the first positioning plate 3 is placed inside the box body 1 through the handle assembly 4, and the first positioning plate 3 can limit the inward deformation of the box body 1. The carrying plate 42 connected to the first positioning plate 3 is located outside the box body 1 and can limit the outward deformation of the box body 1. The side wall of the box body 1 is clamped in the middle gap between the first positioning plate 3 and the carrying plate 42, which can ensure that the through holes 31 correspond one-to-one with the second grooves 21, thereby ensuring accurate positioning. Furthermore, by using this auxiliary structure and packaging device to package the unprotected cylindrical battery 10, the battery 10 can be prevented from rolling off, reducing the risk of short circuits and increasing operational convenience.
[0064] In a specific application scenario, a second positioning plate 2 is first installed at the bottom of the box 1. Then, the auxiliary structure is installed at the corresponding position of the box 1. The handle 42 is rotated so that the first plane 411 of the limiting plate 41 abuts against the upper end face 11 of the box 1. The first positioning plate 3 is positioned at the opening of the box 1 (the upper surface of the first positioning plate 3 is flush with the upper end face 11 of the box 1). The battery 10 is then manually placed according to the hole position of the through hole 31. After placement, the handle 42 is rotated again so that the second plane 412 of the limiting plate 41 abuts against the upper end face 11 of the box 1. At this time, the first positioning plate 3 sinks down, so that the upper end (positive terminal) of the battery 10 is exposed at the through hole 31 of the first positioning plate 3. This facilitates the subsequent application of an insulating pad to the positive terminal of the electrode, isolating the positive and negative terminals on the same side of the battery 10 from the outside and preventing short circuits caused by shaking during transportation. After all the batteries 10 are arranged, remove the auxiliary structure, then attach an insulating pad to the upper surface of the arranged batteries 10, and then invert another second positioning plate 2 on top, so that each end of the battery 10 has a second positioning plate 2. Finally, cover the top of the box 1 with a cardboard top cover to complete the packaging.
[0065] It should be noted that in the description of this specification, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this specification, unless otherwise stated, "a plurality of" means two or more.
[0066] Any numerical values cited herein include all values ranging from a lower limit to an upper limit, increasing by one unit, with at least two units between any lower and any higher value. For example, if the quantity of a component or the value of a process variable (e.g., temperature, pressure, time, etc.) is described as being from 1 to 90, preferably from 20 to 80, more preferably from 30 to 70, the purpose is to illustrate that values such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also explicitly listed in this specification. For values less than 1, a unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1, etc. These are merely examples intended for explicit expression, and it can be assumed that all possible combinations of values listed between the minimum and maximum values are explicitly described in this specification in a similar manner.
[0067] Unless otherwise stated, all ranges include the endpoints and all numbers between them. The terms "approximately" or "about" used with ranges apply to both endpoints of the range. Thus, "approximately 20 to 30" is intended to cover "approximately 20 to approximately 30," including at least the specified endpoints.
[0068] All articles and references disclosed herein, including patent applications and publications, are incorporated herein by reference for various purposes. The term “substantially constitutes…” used to describe a combination should include the identified elements, components, parts, or steps, as well as other elements, components, parts, or steps that do not substantially affect the essential novelty of the combination. The use of the terms “comprising” or “including” to describe combinations of elements, components, parts, or steps herein also contemplates embodiments substantially constituted by such elements, components, parts, or steps. The use of the term “may” herein is intended to indicate that any described attribute included by “may” is optional.
[0069] Multiple elements, components, parts, or steps can be provided by a single integrated element, component, part, or step. Alternatively, a single integrated element, component, part, or step can be divided into multiple separate elements, components, parts, or steps. The use of "a" or "an" to describe an element, component, part, or step does not imply the exclusion of other elements, components, parts, or steps.
[0070] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this teaching should not be determined by reference to the above description, but rather by reference to the appended claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the preceding claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the inventors have not considered that subject matter as part of the disclosed inventive subject matter.
Claims
1. An auxiliary structure for packaging unprotected cylindrical batteries, for mounting on the upper end of a box containing the unprotected cylindrical batteries, to achieve packaging of the unprotected cylindrical batteries; characterized in that, The auxiliary structure includes: A first positioning plate is provided with a plurality of through holes for embedding and placing the battery; the first positioning plate is disposed inside the box body; A handle assembly is disposed around the first positioning plate. The handle assembly includes a limiting plate and a carrying plate. The limiting plate has a first plane and a second plane for abutting against the upper end surface of the box. The carrying plate is fixedly connected to the outside of the limiting plate and is disposed on the outside of the box. A connecting plate is fixedly mounted on the first positioning plate for connecting the first positioning plate and the handle assembly; the limiting plate is rotatably connected to the outside of the connecting plate via a rotating shaft; the distance from the first plane to the rotating shaft is greater than the distance from the second plane to the rotating shaft.
2. The auxiliary structure for packaging cylindrical batteries without protective film according to claim 1, characterized in that, The size of the first positioning plate is equal to the size of the inner frame of the box, and the thickness of the limiting plate is equal to the thickness of the side wall of the box; the inner surface of the carrying handle is in contact with the outer surface of the box, and the connecting plate is located inside the box.
3. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 2, characterized in that, When the first plane abuts against the upper end face of the box, the upper surface of the first positioning plate is flush with the upper end face of the box, and the upper end of the battery is located inside the through hole.
4. The auxiliary structure for packaging cylindrical batteries without protective film according to claim 2, characterized in that, When the second plane abuts against the upper surface of the box, the upper surface of the first positioning plate is lower than the upper surface of the box, and the upper end of the battery extends out of the through hole.
5. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 2, characterized in that, The first plane and the second plane are perpendicular to each other, and the length of the second plane is greater than the length of the first plane.
6. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 2, characterized in that, A positioning plunger is fixedly connected to the limiting plate. The end of the positioning plunger away from the handle is provided with a plunger ball head. A spring is fixedly provided inside the positioning plunger to abut against the plunger ball head. The connecting plate is provided with a first groove for the plunger ball head to be embedded in.
7. The auxiliary structure for packaging unprotected cylindrical batteries according to claim 6, characterized in that, There are two positioning plungers, symmetrically arranged on both sides of the rotating shaft; there are three first grooves, arranged in a 90° array around the circumference of the rotating shaft; when the first plane abuts against the upper end surface of the box, the plunger ball of one of the positioning plungers is embedded in one of the first grooves located below the rotating shaft; when the second plane abuts against the upper end surface of the box, the plunger ball of the two positioning plungers is respectively embedded in the two first grooves located on both sides of the rotating shaft.
8. The auxiliary structure for packaging cylindrical batteries without protective film according to claim 3, characterized in that, When the first plane abuts against the upper end face of the box, the through hole can accommodate the upper end of the first battery and the lower end of the second battery, with the first battery located below the second battery; the line connecting the outer edge of the positive terminal of the upper end of the first battery and the outer edge of the top layer of the negative electrode shell forms a first angle with the horizontal plane, and the bottom plane of the second battery forms a second angle N with the horizontal plane, tanN=(DB) / L, where D represents the diameter of the through hole, B represents the length of the projection of the diameter of the second battery onto the horizontal plane, and L represents the distance from the upper end face of the first battery to the upper surface of the first positioning plate; the diameter and height of the through hole are configured such that the first angle is greater than the second angle.
9. The auxiliary structure for packaging cylindrical batteries without protective film according to claim 1, characterized in that, The first positioning plate is rectangular, and the multiple through holes on the first positioning plate are evenly arranged in an array; there are four handle assemblies, which are respectively located at the center of the four sides of the first positioning plate.
10. A packaging device for packaging cylindrical batteries without protective film, characterized in that, include: The housing, and the auxiliary structure for packaging unprotected cylindrical batteries as described in any one of claims 1-9.
11. The packaging apparatus for packaging cylindrical batteries without protective film according to claim 10, characterized in that, It also includes a second positioning plate, which is fixedly disposed in the box body and located at the bottom of the box body. The second positioning plate has a plurality of second grooves for accommodating the bottom of the battery, and the through holes correspond one-to-one with the second grooves.