Packaging device for packaging cylindrical battery without protective film and auxiliary structure

Abstract

The invention discloses a packaging device for packaging a cylindrical battery without a protective film and an auxiliary structure, the auxiliary structure is used for being installed at the upper end of a box body for containing the cylindrical battery without the protective film, packaging of the cylindrical battery without the protective film is achieved, and the auxiliary structure comprises a first positioning plate, a handle assembly and a connecting plate. The first positioning plate is provided with a plurality of through holes for placing batteries. The handle assembly is arranged on the peripheral side of the first positioning plate and comprises a limiting plate and a hand lifting plate; the limiting plate is provided with a first plane and a second plane which abut against the upper end face of the box body. The handheld plate is fixedly connected to the outer side of the limiting plate and arranged on the outer side of the box body. The connecting plate is fixedly arranged on the first positioning plate and is used for connecting the first positioning plate and the handle assembly; the limiting plate is rotationally connected to the outer side of the connecting plate through a rotating shaft; the distance from the first plane to the rotating shaft is larger than that from the second plane to the rotating shaft. The packaging device and the auxiliary structure can prevent the battery from rolling down, reduce the risk of short circuit and improve the operation convenience.

Description

Technical Field

[0001] The present invention relates to the technical field of battery packaging, and in particular to a packaging device and an auxiliary structure for packaging cylindrical batteries without protective films. Background Art

[0002] To solve the problem of battery shipment and transportation, most of the current methods use paper boxes with blister boxes at the bottom. When the batteries are shipped, the batteries are manually loaded into the paper boxes, and the blister boxes are used to locate the battery. However, most of the existing blister boxes are of standard size, which can only ensure the battery's location, but cannot solve the problem of shaking during the battery packaging process.

[0003] For batteries covered with insulating sleeves, there is no risk of short circuit even if the batteries roll out of the blister box and touch each other during shaking. However, for batteries without sleeves that are in demand in the market, shaking problems are inevitable during the boxing process and transportation before packaging. At this time, if a battery tilts or falls out of the positioning groove of the blister box, it is very likely that they will touch each other and cause a short circuit, which in turn creates a safety hazard. Summary of the invention

[0004] In view of the deficiencies in the prior art, one purpose of this specification is to provide a packaging device and an auxiliary structure for packaging cylindrical batteries without protective films, which can prevent the batteries from rolling, reduce the risk of short circuits, and increase operational convenience.

[0005] To achieve the above-mentioned purpose, the embodiment of this specification provides an auxiliary structure for packaging a cylindrical battery without a protective film, which is used to be installed at the upper end of a box body containing the cylindrical battery without a protective film, so as to realize the packaging of the cylindrical battery without a protective film; the auxiliary structure includes: A first positioning plate, wherein the first positioning plate is provided with a plurality of through holes for embedding and placing the batteries; the first positioning plate is arranged inside the box body; A handle assembly is arranged on the peripheral side of the first positioning plate, the handle assembly includes a limit plate and a hand-held plate; the limit plate is provided with a first plane and a second plane for abutting against the upper end surface of the box body; the hand-held plate is fixedly connected to the outer side of the limit plate, and the hand-held plate is arranged on the outer side of the box body; A connecting plate fixedly arranged on the first positioning plate is used to connect the first positioning plate and the handle assembly; the limiting plate is rotatably connected to the outer side 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.

[0006] As a preferred embodiment, the size of the first positioning plate is equal to the size of the inner frame of the box body, the thickness of the limiting plate is equal to the thickness of the side wall of the box body; the inner surface of the hand plate is in contact with the outer surface of the box body, and the connecting plate is located inside the box body.

[0007] As a preferred implementation, when the first plane abuts against the upper end surface of the box body, the upper surface of the first positioning plate is flush with the upper end surface of the box body, and the upper end of the battery is located in the through hole.

[0008] As a preferred embodiment, when the second plane abuts against the upper end surface of the box body, the upper surface of the first positioning plate is lower than the upper end surface of the box body, and the upper end of the battery extends out of the through hole.

[0009] As a preferred implementation manner, 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.

[0010] As a preferred embodiment, a positioning plunger is fixedly connected to the limit plate, a plunger ball head is provided at the end of the positioning plunger away from the hand plate, a spring abutting against the plunger ball head is fixedly provided inside the positioning plunger; and a first groove for embedding the plunger ball head is provided on the connecting plate.

[0011] As a preferred embodiment, there are two positioning plungers, which are symmetrically arranged on both sides of the rotating shaft; there are three first grooves, which are distributed in a 90° array on the circumferential side of the rotating shaft; when the first plane abuts against the upper end surface of the box body, the plunger ball head 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 body, the plunger ball heads of the two positioning plungers are respectively embedded in the two first grooves located on both sides of the rotating shaft.

[0012] As a preferred embodiment, when the first plane abuts against the upper end surface of the box body, the through hole can accommodate the upper end of the first battery and the lower end of the second battery, and the first battery is located below the second battery; the line connecting the outer edge of the positive terminal at 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, wherein D represents the diameter of the through hole, B represents the length of the projection of the diameter of the second battery on the horizontal plane, and L represents the distance from the upper end surface of the first battery to the upper surface of the first positioning plate; the diameter and height of the through hole are configured to make the first angle greater than the second angle.

[0013] As a preferred embodiment, the first positioning plate is rectangular, and the plurality of through holes on the first positioning plate are arranged in a uniform array; there are four handle assemblies, which are respectively arranged at the centers of the four sides of the first positioning plate.

[0014] The embodiments of the present specification also provide a packaging device for packaging cylindrical batteries without protective films, comprising: a box body, and an auxiliary structure for packaging cylindrical batteries without protective films as described in any of the above embodiments.

[0015] As a preferred embodiment, the packaging device for packaging cylindrical batteries without protective films also includes a second positioning plate, which is fixedly arranged in the box body and located at the bottom of the box body, and 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 to the second grooves.

[0016] The protective film in the cylindrical battery without protective film described in the present invention refers to an external protective film, which is usually sticky and made of organic polymer materials commonly available on the market (such as plastic or tape). The main function of the external protective film is to cover the entire outer shell of the cylindrical battery for insulation. The cylindrical battery without protective film in the present invention refers to a cylindrical battery on which the above-mentioned external protective film is not provided. In general terms, the cylindrical battery without protective film can also be called a bare shell cylindrical battery. Beneficial Effects

[0017] The auxiliary structure for packaging cylindrical batteries without protective films provided in this embodiment is provided with a first positioning plate with a handle assembly. The through hole on the first positioning plate can be used for the battery to be embedded and placed, thereby limiting the upper part of the battery. On the one hand, it prevents the box body containing the battery from shaking during the overall transportation process, causing the battery to roll off. On the other hand, the first positioning plate is placed inside the box body through the handle assembly. The first positioning plate can limit the inward deformation of the box body. The hand plate connected to the first positioning plate is located outside the box body, which can limit the outward deformation of the box body. The side wall of the box body is clamped in the gap between the first positioning plate and the hand plate, which can ensure the accurate positioning of the through hole. In addition, by using this auxiliary structure to package cylindrical batteries without protective films, it can prevent the battery from rolling off, reduce the risk of short circuit, and increase the convenience of operation.

[0018] With reference to the following description and the accompanying drawings, the specific embodiments of the present invention are disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope thereby.

[0019] Features described and / or illustrated with respect to 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.

[0020] It should be emphasized that the term “include / comprises” when used herein refers to the presence of features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 This is a schematic structural diagram of a box body and a second positioning plate provided in this embodiment; Figure 2 This is a schematic structural diagram of an auxiliary structure for packaging a cylindrical battery without a protective film provided in this embodiment; Figure 3 This is a schematic structural diagram of a handle assembly provided in this embodiment; Figure 4 It is a structural schematic diagram of a packaging device containing cylindrical batteries without protective films when the first plane is in contact with the upper end surface of the box body; Figure 5 It is a structural schematic diagram of a packaging device containing cylindrical batteries without protective films when the second plane is in contact with the upper end surface of the box body; Figure 6 It is a schematic diagram of the structure in which two batteries are in the same through hole; Figure 7 for Figure 6 A partial enlarged view of the middle A, at this time the second battery is at the maximum tilt angle; Figure 8 This is a schematic structural diagram of a positioning plunger provided in this embodiment; Fig. 9 for Figure 7 Schematic diagram of the through hole.

[0023] Description of reference numerals: 1. Box body; 11. Upper end surface; 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. Hand 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 shell; 102. Second battery; 121. Upper contact point; 122. Lower contact point. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0025] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be another element centered thereon. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be another element centered thereon at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0027] See also Figures 2 to 8 . The embodiment of the present application provides an auxiliary structure for packaging cylindrical batteries without protective films, which is used to be installed on the upper end of the box body 1 containing the cylindrical batteries without protective films 10 to realize the packaging of the cylindrical batteries without protective films 10. The auxiliary structure plays a role of auxiliary packaging in the packaging process of the battery 10 and needs to be removed after use. The auxiliary structure 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.

[0028] In this embodiment, if Figure 2As shown, the first positioning plate 3 is provided with a plurality of through holes 31 for embedding and placing the battery 10. 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 limit the box body 1 from deforming inwards.

[0029] like Figure 2 As shown, the handle assembly 4 is arranged on the peripheral side of the first positioning plate 3. Figure 3 As shown, the handle assembly 4 includes a limit plate 41 and a hand-held plate 42. The limit plate 41 abuts against the upper end surface 11 of the box body 1, and the first positioning plate 3 can be positioned inside the box body 1. Figure 2 and Figure 3 As shown, the limiting plate 41 is provided with a first plane 411 and a second plane 412 for contacting the upper end surface 11 of the box body 1. The hand plate 42 is fixedly connected to the outer side of the limiting plate 41, and the hand plate 42 is located outside the box body 1. The position of the first positioning plate 3 can be adjusted by operating the hand plate 42.

[0030] like Figure 2 As shown, the connecting plate 5 is fixedly arranged on the first positioning plate 3, and the handle assembly 4 is connected to the first positioning plate 3 through the connecting plate 5. The limiting plate 41 is rotatably connected to the outer side of the connecting plate 5 through the rotating shaft 6, and the position of the first positioning plate 3 can be changed. By rotating the hand plate 42, the limiting plate 41 is driven to rotate, so that the first positioning plate 3 is raised or lowered. 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, so that the height of the first positioning plate 3 when the first plane 411 and the upper end surface 11 are in contact is higher than the height of the first positioning plate 3 when the second plane 412 and the upper end surface 11 are in contact. This height difference can make the battery 10 exposed from the through hole 31, so as to facilitate the subsequent attachment of the insulating surface pad to the positive end of the battery 10.

[0031] The auxiliary structure for packaging cylindrical batteries without protective films provided in this embodiment is provided with a first positioning plate 3 with a handle assembly 4. The through hole 31 on the first positioning plate 3 can be embedded and placed for the battery 10, so as to limit the upper part of the battery 10. On the one hand, it prevents the box body 1 containing the battery 10 from shaking during the overall transportation process, causing the battery 10 to roll off. On the other hand, the first positioning plate 3 is placed inside the box body 1 through the handle assembly 4. The first positioning plate 3 can limit the inward deformation of the box body 1. The hand plate 42 connected to the first positioning plate 3 is located outside the box body 1, which can limit the outward deformation of the box body 1. The side wall of the box body 1 is clamped in the gap between the first positioning plate 3 and the hand plate 42, which can ensure the accurate positioning of the through hole 31. In addition, by using the auxiliary structure to package cylindrical batteries without protective films, the battery 10 can be prevented from rolling off, the risk of short circuit is reduced, and the convenience of operation is increased.

[0032] In this embodiment, the size of the first positioning plate 3 is equal to the size of the inner frame of the box body 1, that is, the peripheral side of the first positioning plate 3 is in contact with the inner surface of the side wall of the box body 1, so that the outer dimensions of the first positioning plate 3 can strictly limit the inward deformation of the box body 1. 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, so that the limiting plate 41 can be placed on the upper end surface 11 of the side wall of the box body 1. The inner surface 421 of the hand plate 42 fits the outer surface of the box body 1, which can strictly limit the outward deformation of the box body 1. The setting of the hand plate 42 and the limiting plate 41 realizes the position limitation of the first positioning plate 3 in the height direction in the box body 1. The connecting plate 5 is located on the inner side of the box body 1, that is, the connecting plate 5 is located inside the side wall of the box body 1, so as not to hinder the lifting and lowering of the first positioning plate 3.

[0033] Specifically, the first positioning plate 3 is rectangular, and a plurality of through holes 31 on the first positioning plate 3 are evenly arranged in an array. There are four handle assemblies 4, which are respectively arranged 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 evenly stressed, achieving a better packaging effect.

[0034] Depending on the shape of the box body 1, for example, if the box body 1 is circular, oval, or other polygonal, or other irregular shapes, in principle, the first positioning plate 3 can be in the same shape as the box body 1. However, in the actual assembly of the present invention, the box body 1 is square, so the first positioning plate 3 is also square. In fact, different box body 1 shapes and corresponding first positioning plate 3 shapes can also achieve the technical effect of the present invention.

[0035] With respect to the above solution, the first positioning plate 3 can effectively realize further positioning of the battery 10, and prevent the packaging device containing the battery 10 from shaking during the overall transportation process, which may cause the battery 10 to roll off. However, with respect to the above solution, in the production line for shipping and loading the battery 10, when the staff quickly loads a large number of batteries 10 into the box body 1, it is often the case that two batteries are placed in the same through hole 31 due to operational errors (two batteries are placed upside down, such as Figure 6 As shown in the figure, 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 smoothly pass through the through hole 31 of the first positioning plate 3, when two batteries are placed in the same hole, the second battery 102 at the top is likely to be tilted, and its bottom will contact the positive and negative electrodes on the top surface of the first battery 101 at the bottom, as shown in the figure. Figure 6 As shown, even if the two batteries are in contact with each other for a short time, the batteries 10 not covered with the film will contact each other and short circuit will occur again. To avoid this phenomenon, the present invention is further configured as follows.

[0036] like Figure 4As shown, when the limit plate 41 rotates to the point where the first plane 411 abuts against the upper end surface 11 of the box body 1, the limit plate 41 is in a vertical state, and 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 surface 11 of the box body 1, or slightly lower than the upper end surface 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.

[0037] like Figure 5 As shown, when the limiting plate 41 rotates until the second plane 412 abuts against the upper end surface 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 surface 11 of the box body 1. At this time, the upper end of the battery 10 extends out of the through hole 31. In the process of loading the battery 10 into the packaging device, the first plane 411 is firstly abutted against the upper end surface 11 of the box body 1, and then the battery 10 is placed in the through hole 31 and placed in 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 surface 11 of the box body 1, and the batteries 10 are uniformly exposed from the through hole 31, so as to facilitate the subsequent attachment of the insulating surface pad to the positive end of the battery 10. The second positioning plate 2 and the second groove 21 are described in detail below.

[0038] Specifically, the first plane 411 and the second plane 412 are perpendicular to each other, so that the limiting plate 41 can rotate 90° relative to the connecting plate 5. The limiting plate 41 has two opposite first planes 411 and two opposite second planes 412. The widths of the first plane 411 and the second plane 412 (i.e., the thickness of the limiting plate 41) are both equal to the thickness of the side wall of the box body 1, and the length of the second plane 412 is greater than the length of the first plane 411, so that the first plane 411 and the second plane 412 are distinguished, and the area of ​​the second plane 412 is greater than the area of ​​the first plane 411, so that the state of the packaging device after packaging is completed is more stable.

[0039] In order to better control the rotation of the limit plate 41, a positioning plunger 7 is fixedly connected to the limit plate 41. The positioning plunger 7 may be provided with a thread on the outside to be threadedly connected with the limit plate 41. Figure 8As shown, a plunger ball head 71 is provided at one end of the positioning plunger 7 away from the hand plate 42, and a spring abutting against the plunger ball head 71 is fixedly provided inside the positioning plunger 7. One end of the spring is fixedly connected to the end of the positioning plunger 7 near the hand plate 42. A first groove 51 is provided on the connecting plate 5 for the plunger ball head 71 to be embedded therein. After the plunger ball head 71 is embedded in the first groove 51, the positioning of the limit plate 41 can be realized, so that the limit plate 41 no longer rotates.

[0040] Specifically, there are two positioning plungers 7, which are symmetrically arranged on both sides of the rotating shaft 6. There are three first grooves 51, which are distributed in a 90° array around the rotating shaft 6, one of which is located directly below the rotating shaft 6, and the two first grooves 51 are symmetrically located on both sides of the rotating shaft 6 in the horizontal direction. When the limit plate 41 rotates, the plunger ball head 71 of the positioning plunger 7 is driven to move against the surface of the connecting plate 5. When the first plane 411 abuts against the upper end surface 11 of the box body 1, the plunger ball head 71 of one of the positioning plungers 7 is embedded in a first groove 51 located below the rotating shaft 6; when the second plane 412 abuts against the upper end surface 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.

[0041] Furthermore, the size of the through hole 31 of the first positioning plate 3 is limited, and the diameter of the through hole 31 needs to be reduced and the height of the through hole 31 needs to be increased. When the first plane 411 abuts against the upper end surface 11 of the box body 1, the batteries 10 may be stacked up and down, 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, and the first battery 101 is 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 electrode shell forms a first angle M with the horizontal plane, and the bottom plane of the second battery 102 (i.e., the negative terminal wrapped in the steel shell, regarded as a conductor) forms a second angle N with the horizontal plane. The minimum second angle N is 0, at which time the second battery 102 is not tilted; the maximum second angle N is as follows: Figure 7 As shown, at this time, the second battery 102 is tilted and the angle is the largest, and the second battery 102 generates two contact points with the inner surface of the through hole 31, which are called upper contact points 121 and lower contact points 122 in this embodiment. In order to avoid the bottom plane of the second battery 102 contacting the positive and negative electrodes of the first battery 101 at the same time to cause a short circuit, the diameter and height of the through hole 31 are configured so that the first angle M is greater than the second angle N.

[0042] External short circuit refers to the short circuit phenomenon that occurs when the positive and negative poles of the battery are directly in contact or connected through other conductors. The principle of external short circuit is that when the positive and negative poles of the battery are directly connected, the current will flow rapidly through the path between the two ends of the battery, causing the voltage inside the battery to drop rapidly and generate a lot of heat. This high current and high heat flow may cause damage to the internal materials of the battery and even cause a fire or explosion.

[0043] In this example, the positive and negative electrodes of the bare shell battery 10 are on the same side, and the negative electrode of the upper stacked battery (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 electrodes of the first battery 101 will be connected by the conductor, thereby causing an external short circuit.

[0044] like Fig. 9 As shown, it is a schematic diagram of a second battery 102 in an inclined state placed in the through hole 31, at which time the second angle N is the largest. Figure 7 and Fig. 9 In the figure, D represents the diameter of the through hole 31, L represents the distance from the upper end surface 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 on the horizontal plane, and α represents the angle between the wall surface of the through hole 31 and the wall surface of the second battery 102.

[0045] Among them, α and the second angle N are similar angles, tanα=(DB) / L. It is known that the inclination angle of the height difference between the positive and negative electrodes of the battery (i.e., the first angle M) is about 3.6°, so α<3.6° can avoid external shorting. And tan3.6°≈0.063, (Dd) / L<0.063. During design, in order to facilitate the placement of the battery 10 in the through hole 31, the value of D is generally 0.5mm~1.0mm larger than d. Because the angle α is small, d≈B, and the value of L is 8mm~16mm.

[0046] In the process of loading the battery 10 into the packaging device, the first positioning plate 3 sinks less in the box body 1 (the lifting height of the first positioning plate 3 is equal to the difference between the distances between the first plane 411 and the second plane 412 and the rotating shaft 6 respectively). After the battery 10 is placed, even if two batteries fall into the same through hole 31, the size restriction design of the through hole 31 of the first positioning plate 3 generates a restraining force on the upper battery (i.e., the second battery 102), so that the second battery 102 will not contact the positive and negative electrodes of the first battery 101 at the same time in an inclined state, effectively avoiding short circuits and greatly ensuring the risk control of shipments. Afterwards, the staff corrected the error and, after ensuring that there was only one battery 10 in each through hole 31, sank the first positioning plate 3 through the handle assembly 4, and the batteries 10 were uniformly exposed from the through hole 31, thereby facilitating the subsequent affixing of the insulating surface pad to the positive end of the battery 10.

[0047] Based on the same concept, the present invention also provides a packaging device for packaging cylindrical batteries without protective films, as described in the following embodiments. Since the principle of solving the problem and the technical effect that can be achieved by the packaging device are similar to those of the above-mentioned auxiliary structure, the implementation of the packaging device can refer to the implementation of the above-mentioned loader boom control device, and the repeated parts will not be repeated.

[0048] An embodiment of the present invention further provides a packaging device for packaging cylindrical batteries without protective films, comprising: a box body 1, and an auxiliary structure as described in any one of the above embodiments.

[0049] Among them, the box body 1 can be made of a paper box, 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 rectangular parallelepiped with an opening on the top, which is convenient for transportation and stacking. Of course, the box body 1 can be designed into different shapes as needed. The bottom of the box body 1 is a plane. A top cover (not shown) can be set on the top of the box body 1. After the battery 10 is installed, the top cover covers the opening on the top of the box body 1.

[0050] like Figure 1 As shown, the packaging device may further include a second positioning plate 2. The second positioning plate 2 is fixedly disposed in the box body 1 and is located at the bottom of the box body 1. The second positioning plate 2 is provided with a plurality of second grooves 21 for accommodating the bottom of the battery 10. Specifically, the second positioning plate 2 may be a blister box to reduce the cost of the packaging device. The first positioning plate 3 is disposed above the second positioning plate 2 located at the bottom of the box body 1. The through hole 31 corresponds one-to-one to the second groove 21 to limit the battery 10. The positions of the second groove 21 and the through hole 31 are distributed in a consistent manner, corresponding one to the other.

[0051] The packaging device for packaging cylindrical batteries without protective films provided in this embodiment is not only provided with a second positioning plate 2 at the bottom of the box body 1, 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 provided with a first positioning plate 3 with a handle assembly 4, the first positioning plate 3 is located above the second positioning plate 2, the through hole 31 on the first positioning plate 3 corresponds one-to-one with the second groove 21, and the battery 10 can be embedded and placed, so as to limit the upper part of the battery 10, on the one hand, to prevent the box body 1 containing the battery 10 from shaking during the overall transportation process and causing the battery 10 to roll off, on the other hand, the first positioning plate 3 is placed inside the box body 1 through the handle assembly 4, the first positioning plate 3 can limit the inward deformation of the box body 1, the hand plate 42 connected to the first positioning plate 3 is located outside the box body 1, 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 hand plate 42, can ensure that the through hole 31 corresponds one-to-one with the second groove 21, so as to achieve accurate positioning. In addition, by using the auxiliary structure and the packaging device to package the cylindrical battery 10 without a protective film, it is possible to prevent the battery 10 from rolling down, reduce the risk of short circuit, and increase the convenience of operation.

[0052] In a specific application scenario, a second positioning plate 2 is first set at the bottom of the box body 1, and then the auxiliary structure is installed to the corresponding position of the box body 1. The hand plate 42 is rotated so that the first plane 411 of the limit plate 41 contacts the upper end surface 11 of the box body 1, and the first positioning plate 3 is at the mouth of the box body 1 (the upper surface of the first positioning plate 3 is flush with the upper end surface 11 of the box body 1), and the battery 10 is manually placed according to the hole position of the through hole 31. After the placement is completed, the hand plate 42 is rotated again so that the second plane 412 of the limit plate 41 contacts the upper end surface 11 of the box body 1. At this time, the first positioning plate 3 sinks, so that the upper end (positive end) of the battery 10 is exposed at the through hole 31 of the first positioning plate 3, which is convenient for the subsequent affixing of the insulating surface pad to the positive end of the electrode, so that the positive and negative electrodes on the same side of the battery 10 are isolated from the outside, and the battery 10 is prevented from shaking during transportation and causing a short circuit. After all the batteries 10 are arranged, the auxiliary structure is removed, and then an insulating pad is attached to the upper surface of the arranged batteries 10, and another second positioning plate 2 is reversed on top, so that a second positioning plate 2 is provided at both ends of the battery 10. Finally, a cardboard top cover is placed on the top of the box body 1 to complete the packaging.

[0053] It should be noted that, in the description of this specification, the terms "first", "second", etc. are only used for descriptive purposes and to distinguish similar objects. There is no order of precedence between the two, and they cannot be understood as indicating or implying relative importance. In addition, in the description of this specification, unless otherwise specified, the meaning of "plurality" is two or more.

[0054] Any numerical value cited herein includes all values ​​of lower and upper values ​​that increase by one unit from the lower limit to the upper limit, and there is at least a two-unit interval between any lower value and any higher value. For example, if the value of the quantity of a component or a process variable (such as temperature, pressure, time, etc.) is set forth to be from 1 to 90, preferably from 20 to 80, and 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 the specification. For values ​​less than 1, one unit is appropriately considered to be 0.0001, 0.001, 0.01, 0.1. These are merely examples that are intended to be clearly expressed, and it can be considered that all possible combinations of numerical values ​​listed between the lowest value and the highest value are clearly set forth in the specification in a similar manner.

[0055] Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. "About" or "approximately" used with a range applies to both endpoints of the range. Thus, "about 20 to 30" is intended to cover "about 20 to about 30", including at least the specified endpoints.

[0056] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of..." to describe a combination should include the identified elements, ingredients, parts or steps and other elements, ingredients, parts or steps that do not substantially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe a combination of elements, ingredients, parts or steps herein also contemplates embodiments that consist essentially of these elements, ingredients, parts or steps. By using the term "may", it is intended to indicate that any attribute described that "may" include is optional.

[0057] Multiple elements, ingredients, parts or steps can be provided by a single integrated element, ingredient, part or step. Alternatively, a single integrated element, ingredient, part or step can be divided into separate multiple elements, ingredients, parts or steps. The disclosure "one" or "an" used to describe an element, ingredient, part or step is not intended to exclude other elements, ingredients, parts or steps.

[0058] It should be understood that the above description is for illustration and not for limitation. Many embodiments and many applications beyond the examples provided will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of the present teachings should not be determined with reference to the above description, but should be determined with reference to the appended claims and the full scope of equivalents possessed by such claims. For the purpose of comprehensiveness, all articles and references, including disclosures of 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 to be a waiver of the subject matter, nor should it be considered that the inventors did not consider the subject matter to be part of the disclosed inventive subject matter.

Claims

1. An auxiliary structure for packaging cylindrical batteries without protective films, which is used to be installed at the upper end of a box body containing cylindrical batteries without protective films to realize the packaging of the cylindrical batteries without protective films; characterized in that: The auxiliary structure comprises: A first positioning plate, wherein the first positioning plate is provided with a plurality of through holes for embedding and placing the batteries; the first positioning plate is arranged inside the box body; A handle assembly is arranged on the peripheral side of the first positioning plate, the handle assembly includes a limit plate and a hand-held plate; the limit plate is provided with a first plane and a second plane for abutting against the upper end surface of the box body; the hand-held plate is fixedly connected to the outer side of the limit plate, and the hand-held plate is arranged on the outer side of the box body; A connecting plate fixedly arranged on the first positioning plate is used to connect the first positioning plate and the handle assembly; the limiting plate is rotatably connected to the outer side 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 films 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 body, and the thickness of the limiting plate is equal to the thickness of the side wall of the box body; the inner surface of the hand plate is in contact with the outer surface of the box body, and the connecting plate is located inside the box body.

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 surface of the box body, the upper surface of the first positioning plate is flush with the upper end surface of the box body, and the upper end of the battery is located in the through hole.

4. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 2, characterized in that: When the second plane abuts against the upper end surface of the box body, the upper surface of the first positioning plate is lower than the upper end surface of the box body, 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 is perpendicular to the second plane, 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 limit plate, a plunger ball head is provided at one end of the positioning plunger away from the hand plate, a spring abutting against the plunger ball head is fixedly provided inside the positioning plunger; a first groove for the plunger ball head to be embedded in is provided on the connecting plate.

7. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 6, characterized in that: There are two positioning plungers, which are symmetrically arranged on both sides of the rotating shaft; there are three first grooves, which are distributed in a 90° array on the circumference of the rotating shaft; when the first plane abuts against the upper end surface of the box body, the plunger ball head 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 body, the plunger ball heads of the two positioning plungers are 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 films according to claim 3, characterized in that: When the first plane is in contact with the upper end surface of the box body, the through hole can accommodate the upper end of the first battery and the lower end of the second battery, and the first battery is located below the second battery; the line connecting the outer edge of the positive terminal at 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, wherein D represents the diameter of the through hole, B represents the length of the projection of the diameter of the second battery on the horizontal plane, and L represents the distance from the upper end surface of the first battery to the upper surface of the first positioning plate; the diameter and height of the through hole are configured to make the first angle greater than the second angle.

9. The auxiliary structure for packaging cylindrical batteries without protective films according to claim 1, characterized in that: The first positioning plate is rectangular, and the plurality of through holes on the first positioning plate are arranged in a uniform array; there are four handle assemblies, which are respectively arranged at the centers of the four sides of the first positioning plate.

10. A packaging device for packaging cylindrical batteries without protective films, characterized in that: include: A box body, and an auxiliary structure for packaging cylindrical batteries without protective films as described in any one of claims 1 to 9.

11. The packaging device for packaging cylindrical batteries without protective films according to claim 10, characterized in that: It also includes a second positioning plate, which is fixedly arranged 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 to the second grooves one by one.

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