Protective device and transport device

Abstract

A protective device (20) and a transport device (10) are provided, wherein the protective device (20) is used to protect the electrode (3), and the protective device (20) includes: a support assembly (2) for supporting a spool (4) on which the electrode (3) is wound; and a shock-absorbing assembly (5), the top of which is fixed to the bottom of the support assembly (2), and the bottom of which is fixed to the base plate (11) of the transport device (10). The protective device (20) and the transport device (10) can effectively dampen the electrode (3) during transport, reducing the risk of misalignment of the electrode (3) due to impacts from all directions during transport.

Description

Technical Field

[0001] This application relates to the field of battery technology, specifically to a protection device and a transportation device. Background Technology

[0002] Lithium-ion batteries have been widely used in power battery systems for electronic devices such as computers and mobile phones, as well as new energy vehicles, in recent years due to their advantages such as high energy density, high power density, long lifespan, and environmental friendliness.

[0003] A battery is a single physical module comprising one or more individual battery cells (also called battery cells) to provide voltage. Each battery cell includes a positive electrode, a negative electrode, an electrolyte, and a separator. During battery manufacturing, after the electrodes are processed, they typically need to be transported to other locations for further manufacturing. How to reduce the risk of electrode misalignment during transportation is a problem that needs to be solved. Summary of the Invention

[0004] In view of the above problems, embodiments of this application provide a protection device and a transport device that can reduce the risk of electrode misalignment during electrode transport.

[0005] According to a first aspect of the embodiments of this application, a protective device is provided for protecting an electrode sheet. The protective device includes: a support assembly for supporting a spool wound with the electrode sheet; and a shock-absorbing assembly, the top of which is fixed to the bottom of the support assembly, and the bottom of which is fixed to the base plate of a transport device.

[0006] In this embodiment, during electrode transportation, the impact force on the transport device is transmitted from the base plate of the transport device to the shock-absorbing component. The shock-absorbing component absorbs part or even most of the impact force. The top of the shock-absorbing component is fixed to the bottom of the support component, and the bottom of the shock-absorbing component is fixed to the base plate of the transport device. That is, the shock-absorbing component is set inside the transport device. The shock-absorbing component only needs to dampen the support component and the roll and electrode supported by the support component. It does not need to dampen other components, which reduces the weight of the shock-absorbing component and improves the damping effect. This reduces the impact force transmitted to the electrode, reduces the risk of misalignment between electrodes due to large impact forces, reduces the risk of electrode scrap, and improves the electrode yield.

[0007] In some embodiments, the shock-absorbing assembly includes a shock absorber and a mounting bracket; the top of the shock absorber is fixed to the bottom of the support assembly, the bottom of the shock absorber is fixed to the top of the mounting bracket, and the bottom of the mounting bracket is fixed to the base plate of the transport device.

[0008] By incorporating shock absorbers into the shock-absorbing assembly and fixing the mounting bracket and shock absorbers between the support assembly and the base plate of the transport device, the shock absorbers can absorb the impact force on the transport device during transport, thereby reducing the impact force transmitted to the electrode sheets and lowering the risk of misalignment between the electrode sheets due to large impact forces. Furthermore, fixing the shock absorbers with the mounting bracket can prevent the shock absorbers from moving or falling off between the support assembly and the base plate of the transport device, thus affecting the shock absorption effect.

[0009] In some embodiments, the shock absorber includes a first fixing part, a second fixing part, and a shock absorber unit; the first fixing part is fixed to the support assembly, the shock absorber unit is fixed between the first fixing part and the second fixing part, and the second fixing part is fixed to the fixing frame.

[0010] By incorporating a damping unit within the damping component and fixing it between the support assembly and the mounting frame via a first and second fixing part, the damping unit is secured between the support assembly and the base plate of the transport device. This damping unit absorbs the impact force experienced by the transport device during transport, thereby reducing the impact force transmitted to the electrode sheets and mitigating the risk of misalignment between the electrode sheets due to significant impact forces. Furthermore, fixing the damping unit with the first and second fixing parts prevents it from moving or detaching from the support assembly and the base plate of the transport device, thus ensuring effective damping.

[0011] In some embodiments, the damping unit includes an elastic element or a hydraulic element. Elastic elements or hydraulic elements provide better damping performance.

[0012] In some embodiments, the support assembly includes a support portion with a buckle, and an accommodating space for accommodating the roll is formed between the support portion and the buckle.

[0013] By providing a support part and a buckle in the support assembly, a receiving space for accommodating the drum is formed between the support part and the buckle, so that the drum can be accommodated in the receiving space, which facilitates the support of the drum.

[0014] In some embodiments, a first cushioning pad is provided on the support portion within the accommodating space, and / or a second cushioning pad is provided on the buckle.

[0015] By providing a first buffer pad located within the accommodating space on the support, the rigid contact between the drum and the support is changed to a flexible contact. And / or by providing a second buffer pad located within the accommodating space on the buckle, the rigid contact between the drum and the buckle is changed to a flexible contact. This reduces wear between the drum and the support and the buckle, increases friction between the drum and the support and the buckle, makes it less likely for the drum to move or fall off the support assembly, and further mitigates the vertical impact force transmitted to the drum and the electrode.

[0016] In some embodiments, the material of the first cushioning pad includes rubber, polyethylene, or silicone, and / or the material of the second cushioning pad includes rubber, polyethylene, or silicone.

[0017] By selecting rubber, polyethylene, or silicone to make the first and / or second cushioning pads, the cushioning effect of the first and / or second cushioning pads can be made good and durable.

[0018] In some embodiments, the thickness of the first cushioning pad and / or the second cushioning pad ranges from 4 to 20 mm.

[0019] The thickness of the first and / or second buffer pads ranges from 4 to 20 mm, which can provide a good buffering effect and ensure sufficient space for the roll.

[0020] In some embodiments, the fixing frame includes an outer fixing frame and an inner fixing frame, the shock absorber is fixed to the inner fixing frame, the inner fixing frame is detachably connected to the outer fixing frame, and the outer fixing frame is used to fix to the base plate of the transport device.

[0021] By dividing the mounting frame into an outer mounting frame and an inner mounting frame, the shock absorber is fixed to the inner mounting frame, and the outer mounting frame is fixed to the base plate of the transport device. The inner mounting frame and the outer mounting frame are detachably connected. After the inner mounting frame is removed from the outer mounting frame, the connection between the shock absorber and the base plate of the transport device can be released, which facilitates the replacement and maintenance of the shock absorber.

[0022] In some embodiments, the fixing frame includes an outer fixing frame and an inner fixing frame, the shock absorber is fixed to the inner fixing frame, and the outer fixing frame is fixed to the base plate of the transport device; the inner fixing frame can rotate relative to the outer fixing frame, and after rotating the shock absorber and the support assembly, it falls onto the base plate.

[0023] The inner fixed frame rotates relative to the outer fixed frame, and the shock absorber and the support assembly fixed on the shock absorber can rotate together with the inner fixed frame relative to the outer fixed frame and fall to the bottom plate of the transport device. In this way, when no drum is placed on the support assembly, the inner fixed frame, shock absorber and support assembly as a whole change from the vertical placement state before rotation to the horizontal placement state after rotation, reducing the space occupied by the above components in the vertical direction, thereby saving their storage space.

[0024] In some embodiments, a rotation limiting member is provided between the inner fixing frame and the outer fixing frame to limit the inner fixing frame when the inner fixing frame rotates relative to the outer fixing frame.

[0025] By setting a rotation limiter between the inner and outer fixed frames, the inner fixed frame does not detach from the outer fixed frame during the rotation process of the inner fixed frame, shock absorber and support assembly being tilted onto the base plate of the transport device. When the inner fixed frame, shock absorber and support assembly are subsequently restored to the vertical state, there is no need to reposition the inner fixed frame, which facilitates operation.

[0026] In some embodiments, the outer fixing frame has a slot, and the inner fixing frame has a block, which is embedded in the slot; when the inner fixing frame and the outer fixing frame are in a disassembled state, the block can be removed from the slot.

[0027] By providing a slot on the outer fixing frame and a locking block on the inner fixing frame, the locking block engages with the slot to position the assembly between the inner and outer fixing frames, ensuring the overall structural strength of the fixing frame. The locking block and the slot are movably fitted; when the inner and outer fixing frames are disassembled, the locking block can be removed from the slot without affecting the rotation of the inner fixing frame relative to the outer fixing frame.

[0028] In some embodiments, one end of the buckle is rotatably connected to the support portion, and the other end of the buckle is detachably connected to the support portion.

[0029] By rotatably connecting one end of the buckle to the support and detachably connecting the other end, removing the other end of the buckle allows rotation of the buckle to provide an entrance for the vertically downward-facing space on the support assembly, facilitating the placement of the roll and improving the efficiency of pre-packaging of electrode sheets. Furthermore, the rotatable connection between the buckle and the support eliminates the need for disassembly, further enhancing operational efficiency.

[0030] In some embodiments, the support assembly further includes a snap-fit ​​seat disposed on the support portion, the snap-fit ​​seat being used to hold the snap-fit ​​when it is detached from the support portion.

[0031] By setting a latch seat to hold the latch in the detached state of the support, movement of the latch is prevented when it is in the detached state.

[0032] According to a second aspect of the embodiments of this application, a transport device is provided, including a protective device as described in the above embodiments, the protective device being disposed on the base plate of the transport device.

[0033] In this embodiment, during electrode transportation, the impact force on the transport device is transmitted from the base plate of the transport device to the shock-absorbing component. The shock-absorbing component absorbs part or even most of the impact force. The top of the shock-absorbing component is fixed to the bottom of the support component, and the bottom of the shock-absorbing component is fixed to the base plate of the transport device. That is, the shock-absorbing component is set inside the transport device. The shock-absorbing component only needs to dampen the support component and the roll and electrode supported by the support component. It does not need to dampen other components in the transport device, which reduces the weight of the shock-absorbing component and improves the damping effect. This reduces the impact force transmitted to the electrode, reduces the risk of misalignment between electrodes due to large impact forces, reduces the risk of electrode scrap, and improves the electrode yield.

[0034] In some embodiments, the transport device further includes a dust cover that covers the shock absorber.

[0035] By installing a dust cover over the shock absorber, dust or other impurities can be prevented from entering the shock absorber, thus preventing the dust or other impurities from affecting the shock absorption effect of the shock absorber and ensuring its shock absorption performance.

[0036] In some embodiments, the transport device further includes the spool for winding the electrode sheet and placing it on the support assembly; the spool is made of metal.

[0037] Metal rolls can reduce the risk of electrode misalignment caused by external impact forces exceeding the friction between the roll and the electrode, or between the layers of the electrode.

[0038] In some embodiments, the diameter of the roll is ≥300mm.

[0039] A drum diameter ≥ 300mm increases the total pressure on the electrode surface, increases the electrode tension during winding, thereby increasing the friction between the layers of the electrode and reducing the risk of electrode misalignment.

[0040] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0041] The features, advantages, and technical effects of exemplary embodiments of this application will now be described with reference to the accompanying drawings.

[0042] Figure 1 This is a schematic diagram of the impact force acting on the electrode.

[0043] Figure 2 This is a schematic diagram of the structure of the protective device provided in some embodiments of this application fixed to the base plate of the transport device;

[0044] Figure 3 This is a schematic diagram of a spool with electrode sheets wound on it mounted on a protective device;

[0045] Figure 4 This is a structural diagram of the support components and the shock absorption components;

[0046] Figure 5 This is a structural schematic diagram of the shock absorption assembly;

[0047] Figure 6 This is a structural diagram of the supporting components;

[0048] Figure 7 This is a schematic diagram showing the state of the internal fixing frame, shock absorbers, and support components after they have rotated and collapsed onto the bottom plate of the transport device.

[0049] Figure 8 This is a partial cross-sectional structural diagram of the support components and the damping components;

[0050] Figure 9 This is a schematic diagram of the exploded structure of a transport device provided in some embodiments of this application.

[0051] The accompanying drawings are not necessarily drawn to scale.

[0052] Figure label:

[0053] 10 - Transport device; 20 - Protection device;

[0054] 11-Base plate, 12-Outer cover;

[0055] 2-Support assembly, 3-Electrode plate, 4-Switch, 5-Shock absorption assembly, 6-Dust cover;

[0056] 21-Support part, 211-Baffle, 22-Snap fastener, 221-Fixing platform, 23-Accommodation space, 24-Second buffer pad, 25-Snap fastener seat;

[0057] 51-Shock absorber, 511-First fixing part, 512-Second fixing part, 513-Shock absorber unit, 52-Fixing bracket, 521-Outer fixing bracket, 521a-Slot, 522-Inner fixing bracket, 522a-Through hole, 522b-Card block, 523-Rotating shaft. Detailed Implementation

[0058] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0060] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by those skilled in the art to which the embodiments of this application pertain.

[0061] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0062] Furthermore, technical terms such as "first" and "second" are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance or implicitly specifying the number of technical features indicated, nor are they used to describe a specific order or primary / secondary relationship.

[0063] In this article, the term "and / or" simply describes the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0064] In this application, "multiple" means two or more (including two), and similarly, "multiple sets" means two or more (including two sets), and "multiple pieces" means two or more (including two pieces), unless otherwise explicitly specified.

[0065] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0066] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will understand that the embodiments described herein can be combined with other embodiments.

[0067] Lithium-ion batteries have been widely used in power battery systems for electronic devices such as computers and mobile phones, as well as new energy vehicles, in recent years due to their advantages such as high energy density, high power density, long lifespan, and environmental friendliness.

[0068] The battery mentioned in the embodiments of this application refers to a single physical module comprising one or more battery cells to provide a higher voltage.

[0069] A single battery cell typically includes a casing and an electrode assembly housed within the casing, which is filled with an electrolyte. The electrode assembly typically includes a positive electrode, a negative electrode, and a separator; the positive and negative electrodes can be collectively referred to as electrodes. The positive and negative electrodes and the separator are stacked and wound around a winding axis to form a wound structure. The positive electrode includes a positive current collector and a positive active material layer, which is coated on the surface of the positive current collector. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material layer includes the positive active material, which can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer, which is coated on the surface of the negative current collector. The negative current collector can be made of copper, and the negative active material layer includes the negative active material, which can be carbon or silicon, etc. The separator can be made of PP (polypropylene) or PE (polyethylene), etc.

[0070] After the battery electrodes are processed, they need to be assembled with other components to form a battery. If the location of the electrodes is not the same as the location of the battery assembly, for example, if the electrode processing workshop and the battery assembly workshop are not in the same workshop, or if the electrode processing plant and the battery assembly plant are not in the same location, then the electrodes need to be transferred from the location of electrode processing to the location of battery assembly.

[0071] When transporting electrode sheets, they are typically first wound onto a spool, then placed inside a container before transport. This type of transport is usually long-distance, requiring the use of long-distance transport vehicles such as trucks, trains, or ships. The transport vehicle generates vibrations during its journey, which are transmitted to the container. Furthermore, the container itself vibrates during loading and unloading. The impact force from these vibrations is transmitted to the electrode sheets, causing misalignment. If the misalignment exceeds the equipment's correction range, making it impossible to correct the misaligned electrode sheets, they will be unusable in subsequent cold pressing or slitting processes, rendering them unusable and thus scrapped.

[0072] Furthermore, the inventors discovered that during long-distance transportation, even transnational long-distance transportation, the external impact forces on the electrode sheets include: a) vertical impact forces on the transport vehicle under different road conditions, thus generating a vertical impact force on the electrode sheets; b) when the transport vehicle accelerates or decelerates, the acceleration in the direction of travel (including positive and negative acceleration) acts on the electrode sheets, generating an impact force on the electrode sheets in the direction of travel; c) when the transport vehicle turns, the turning acceleration on the electrode sheets in a direction perpendicular to the direction of travel and located in the same horizontal plane as the direction of travel; and d) vertical impact forces generated on the electrode sheets during the transfer process (container loading and unloading process).

[0073] Impact forces a, c, and d act on the packaging box of the electrode, and are transmitted through the packaging box to the electrode, thus generating an impact force e on the electrode. The impact force e acting on the electrode (e.g., Figure 1 As shown in (a), gaps are created between the layers of the electrode, thereby reducing the friction between the electrodes. Furthermore, impact forces a, b, and c act on the packaging box and are transmitted to the electrode, subjecting the electrode to a total impact force f (as shown in (a)). Figure 1 As shown in (b), when the impact force f is greater than the frictional force between the electrodes, the electrodes will become misaligned.

[0074] Therefore, how to dampen the electrodes during transportation, reduce the impact force transmitted to the electrodes, and reduce the degree of electrode misalignment is a problem that needs to be solved.

[0075] In view of this, this application provides a protective device. Figure 2This is a schematic diagram of the structure of the protective device fixed to the base plate of the transport device according to some embodiments of this application. Figure 3 This is a schematic diagram of a spool with electrode sheets wound on a protective device.

[0076] Please see Figure 2 and Figure 3 The protective device 20 is used to protect the electrode 3. The protective device 20 includes a support assembly 2 and a shock-absorbing assembly 5. The support assembly 2 is used to support the spool 4 (e.g., on a drum) on which the electrode 3 is wound. Figure 4 (As shown). The top of the shock-absorbing component 5 is fixed to the bottom of the support component 2, and the bottom of the shock-absorbing component 5 is used to fix it to the base plate 11 of the transport device.

[0077] In the figure, the X-axis is the axial direction of the drum 4, the Y-axis is the direction perpendicular to the X-axis in the horizontal plane, and the Z-axis is the direction perpendicular to the X-axis in the vertical plane.

[0078] "Top" and "bottom" refer to the top and bottom of each component in the Z-axis direction. For example, the top of the damping component 5 refers to the top surface of the damping component 5 in the Z-axis direction, the bottom of the support component 2 refers to the bottom surface of the support component 2 in the Z-axis direction, and the bottom of the damping component 5 refers to the bottom surface of the damping component 5 in the Z-axis direction.

[0079] Please see Figure 3 The electrode 3 is wound onto the spool 4, specifically around the middle of the spool 4. The ends of the spool 4, where they abut against the support assembly 2, are not wound with the electrode 3. This prevents the electrode 3 from being damaged by contact with the support assembly 2 or hindering the assembly of the spool 4 onto the support assembly 2. The support assembly 2 supports the spool 4 with the electrode 3 wound on it. The slack arrangement of the spool 4 protects the electrode 3 from compression and damage.

[0080] The top of the shock-absorbing component 5 is fixed to the bottom of the support component 2, and its bottom is fixed to the base plate 11 of the transport device, so that the shock-absorbing component 5 is fixed between the base plate 11 of the transport device and the support component 2. The impact force on the transport device will first be transmitted to the shock-absorbing component 5 through the base plate 11, then to the support component 2, and then to the drum 4 and the electrode 3. The shock-absorbing component 5 can dampen the electrode 3.

[0081] The above-mentioned components can be fixed by welding, riveting, screwing, etc.

[0082] In this embodiment, during the transportation of the electrode 3, the impact force on the transport device is transmitted from the base plate 11 of the transport device to the shock-absorbing component 5. The shock-absorbing component 5 absorbs part or even most of the impact force. The top of the shock-absorbing component 5 is fixed to the bottom of the support component 2, and the bottom of the shock-absorbing component 5 is fixed to the base plate 11 of the transport device. That is, the shock-absorbing component 5 is set inside the transport device. The shock-absorbing component 5 only needs to dampen the support component 2 and the roll 4 and electrode 3 supported by the support component 2. It does not need to dampen other components, so that the weight of the shock-absorbing component 5 is reduced and the damping effect is good, thereby reducing the impact force transmitted to the electrode 3. It also reduces the risk of misalignment between the layers of the electrode 3 due to large impact forces, reduces the risk of the electrode 3 being scrapped, and improves the yield of the electrode 3.

[0083] If the shock absorption design is implemented on the outside of the transport device, the total weight requiring shock absorption includes not only the drum 4, electrode 3, and support assembly 2, but also the base plate of the transport device and other components mounted on the shock absorption assembly (such as the transport device's housing or cover). This may exceed the shock absorption capacity of the shock absorption assembly, and the shock absorption effect may be unsatisfactory. In contrast, this embodiment places the shock absorption assembly 5 inside the transport device, between the base plate 11 and the support assembly 2 that supports the drum 4. This brings the shock absorption assembly 5 closer to the electrode 3. The shock absorption assembly 5 only needs to absorb the weight of the support assembly 2, drum 4, and electrode 3, without needing to absorb the weight of the base plate of the transport device or other components mounted on the shock absorption assembly. The shock absorption capacity of the shock absorption assembly 5 is sufficient to support the weight of the aforementioned components. The required shock absorption weight is reduced, the shock absorption effect is good, and it ensures that the electrode 3 is less prone to misalignment during long-term, long-distance transport.

[0084] Figure 4 This is a structural diagram of the support and damping components. Please refer to [link / reference]. Figure 4 Please continue reading Figure 3 The shock absorption assembly 5 includes a shock absorber 51 and a fixing frame 52. The top of the shock absorber 51 is fixed to the bottom of the support assembly 2, the bottom of the shock absorber 51 is fixed to the top of the fixing frame 52, and the bottom of the fixing frame 52 is fixed to the base plate 11 of the transport device.

[0085] In the shock absorption assembly 5, the shock absorber 51 is used to absorb impact force and dampen vibration, and the fixing frame 52 is used to fix the shock absorber 51 between the support assembly 2 and the base plate 11 of the transport device.

[0086] By setting a shock absorber 51 in the shock absorber assembly 5, and by fixing the fixing frame 52 and the shock absorber 51 between the support assembly 2 and the base plate 11 of the transport device, the shock absorber 51 can absorb the impact force on the transport device during transportation, thereby reducing the impact force transmitted to the electrode 3 and reducing the risk of misalignment between the layers of the electrode 3 due to the large impact force; and by fixing the shock absorber 51 with the fixing frame 52, the shock absorber 51 can be prevented from moving or falling off between the support assembly 2 and the base plate 11 of the transport device, thus affecting the shock absorption effect.

[0087] Figure 5 This is a structural diagram of the vibration damping assembly. Please refer to [link / reference]. Figure 5 Please continue reading Figure 2 The shock absorber 51 includes a first fixing part 511, a second fixing part 512, and a shock absorber unit 513. The first fixing part 511 is fixed to the support assembly 2, the shock absorber unit 513 is fixed between the first fixing part 511 and the second fixing part 512, and the second fixing part 512 is fixed to the fixing frame 52.

[0088] The damping unit 513 is used to absorb impact force and dampen vibration. A first fixing part 511 is located at the top of the damping unit 513, and a second fixing part 512 is located at the bottom of the damping unit 513. The damping unit 513 is fixed to the support assembly 2 via the first fixing part 511, and fixed to the mounting frame 52 via the second fixing part 512. The fixing methods between the above components can include welding, riveting, screwing, etc.

[0089] By providing a damping unit 513 in the damping component 51, and fixing the damping unit 513 between the support component 2 and the fixing frame 52 through the first fixing part 511 and the second fixing part 512, the damping unit 513 is fixed between the support component 2 and the base plate 11 of the transport device. The damping unit 513 can absorb the impact force on the transport device during transportation, thereby reducing the impact force transmitted to the electrode 3 and reducing the risk of misalignment between the layers of the electrode 3 due to large impact forces. Furthermore, by fixing the damping unit 513 through the first fixing part 511 and the second fixing part 512, the damping unit 513 can be prevented from moving or falling off between the support component 2 and the base plate 11 of the transport device, thus affecting the damping effect.

[0090] In some embodiments, the damping unit 513 includes an elastic element or a hydraulic element.

[0091] The elastic element can be a spring, spring sheet, or rubber or silicone damping pad, while the hydraulic element can be any type of hydraulic shock absorber. Both elastic and hydraulic elements offer good vibration damping performance.

[0092] Figure 5The damping unit 513 shown is an all-directional damping spring. Multiple fixing holes are respectively provided on the first fixing part 511 and the second fixing part 512. The all-directional damping spring passes through the fixing holes of the first fixing part 511 and the second fixing part 512, thereby fixing the all-directional damping spring between the first fixing part 511 and the second fixing part 512. Those skilled in the art should understand that the figure shown is merely an example. The damping unit 513 can be any other component that can achieve the damping function, such as the other elastic or hydraulic components mentioned above. The fixing method can also be any other method that can fix the damping unit 513 between the first fixing part 511 and the second fixing part 512, such as welding, riveting, gluing, screwing, etc.

[0093] If the damping unit 513 can only mitigate the vertical impact forces a and d, but not the horizontal impact forces b and c, it cannot effectively prevent the electrode 3 from misaligning. Therefore, in some embodiments, the damping unit 513 can be an anisotropic damping unit to achieve anisotropic damping of the electrode 3 in both the horizontal and vertical planes. In this way, during the transportation of the electrode 3, it can effectively mitigate impact forces from all directions, including the vertical impact forces a and d, as well as impact forces from other directions (including but not limited to the horizontal impact forces b and c caused by acceleration, deceleration, turning, and tilting), preventing the electrode 3 from being misaligned due to anisotropic impacts.

[0094] Figure 6 This is a structural diagram of the supporting components. Please refer to [link / reference]. Figure 6 Please continue reading Figure 3 The support component 2 includes a support part 21, on which a buckle 22 is provided, and a receiving space 23 for accommodating the roll 4 is formed between the support part 21 and the buckle 22.

[0095] The top of the support portion 21 has a receiving groove, the shape of which is basically adapted to the shape of the portion of the roll 4 placed in the receiving groove. The buckle 22 is fastened to the top of the receiving groove, so that a receiving space 23 for accommodating the roll 4 is formed between the support portion 21 and the buckle 22, and the shape of the receiving space 23 is basically adapted to the shape of the roll 4 placed in the receiving groove.

[0096] like Figure 2 As shown, the roll 4 is cylindrical in shape. Figure 6 As shown, the shape of the accommodating space 23 formed between the support part 21 and the buckle 22 for accommodating the roll 4 is also roughly cylindrical. The accommodating groove opened in the support part 21 is an arc-shaped groove, and the buckle 22 itself is also arc-shaped. The two together form a cylindrical accommodating space 23 with a circular cross-section.

[0097] Those skilled in the art should understand that the figure shown is merely an example, and the buckle 22 may not be curved itself, such as a square buckle, with an arc-shaped groove on the square buckle, so as to cooperate with the arc-shaped groove on the support to form a cylindrical receiving space.

[0098] By providing a support portion 21 and a buckle 22 in the support assembly 2, a receiving space 23 for accommodating the drum 4 is formed between the support portion 21 and the buckle 22, so that the drum 4 can be accommodated in the receiving space 23, which facilitates the support of the drum 4.

[0099] Within the accommodating space 23, a first buffer pad is provided on the support part 21, or a second buffer pad is provided on the buckle 22, or the support part 21 is provided with a first buffer pad and the buckle 22 is provided with a second buffer pad.

[0100] By providing a first buffer pad on the support 21 within the accommodating space 23, the rigid contact between the drum 4 and the support 21 is changed to a flexible contact. And / or by providing a second buffer pad on the buckle 22 within the accommodating space 23, the rigid contact between the drum 4 and the buckle 22 is changed to a flexible contact. This reduces wear between the drum 4 and the support 21 and the buckle 22, and increases friction between the drum 4 and the support 21 and the buckle 22. This makes it less likely for the drum 4 to move or fall off the support assembly 2, and further alleviates the vertical impact force transmitted to the drum 4 and the electrode 3.

[0101] Please continue reading. Figure 6 In the embodiment shown in the figure, the second buffer pad 24 is provided only on the buckle 22. Those skilled in the art should understand that the figure is only an example, and buffer pads may also be provided on both the buckle 22 and the support 21, or only on the support 21.

[0102] Please continue reading. Figure 6 A baffle 211 is also provided on one side of the space 23 on the support part 21 to limit the movement of the drum 4 in the X-axis direction, thereby further reducing the risk of misalignment of the electrode 3.

[0103] In some embodiments, the first and second cushioning pads are made of rubber, polyethylene, or silicone. By selecting rubber, polyethylene, or silicone to make the first and / or second cushioning pads, the cushioning effect of the first and / or second cushioning pads can be made good and durable.

[0104] In some embodiments, the thickness of the first cushioning pad and / or the second cushioning pad ranges from 4 to 20 mm.

[0105] "Thickness" refers to the dimension in the Z-axis direction.

[0106] The inventors discovered through experiments that when the thickness of the first and / or second buffer pads is less than 4 mm, the thinness of the buffer pads may prevent the roll 4 from making tight contact with the support 21 or the buckle 22, resulting in poor cushioning performance. Therefore, in this embodiment, the thickness of the first and / or second buffer pads is set to be greater than or equal to 4 mm. Depending on the actual application, the thickness of the first and / or second buffer pads cannot be too large, otherwise the accommodating space 23 will not be able to accommodate the roll 4. Therefore, an upper limit of 20 mm is set for this. For example, the thickness of the first and / or second buffer pads can be any value within the range of 4 to 20 mm, such as 4 mm, 10 mm, 16 mm, or 20 mm.

[0107] The shape of the first buffer pad and / or the second buffer pad is adapted to the corresponding shape of the support part 21 and the buckle 22. For example, if the parts on the support part 21 and the buckle 22 where the first buffer pad and the second buffer pad are provided are arc-shaped, then the shape of the first buffer pad and the second buffer pad is also arc-shaped.

[0108] The thickness of the first and / or second buffer pads ranges from 4 to 20 mm, which can provide a good buffering effect and ensure sufficient accommodating space 23 for the roll 4.

[0109] Please continue reading. Figure 3 and Figure 5 The fixing frame 52 includes an outer fixing frame 521 and an inner fixing frame 522. The shock absorber 51 is fixed to the inner fixing frame 522. The inner fixing frame 522 is detachably connected to the outer fixing frame 521. The outer fixing frame 521 is used to fix to the base plate 11 of the transport device.

[0110] The outer fixation bracket 521 has a receiving cavity, and the inner fixation bracket 522 is disposed within the receiving cavity and detachably connected to the outer fixation bracket 521. The detachable connection between the inner fixation bracket 522 and the outer fixation bracket 521 can be a screw connection, a hinge connection, or a snap connection. The figure shows a screw connection. Threaded holes are provided on both the inner fixation bracket 522 and the outer fixation bracket 521. Screws or bolts pass through the threaded holes to fix the inner fixation bracket 522 to the outer fixation bracket 521.

[0111] By dividing the fixing frame 52 into an outer fixing frame 521 and an inner fixing frame 522, the shock absorber 51 is fixed to the inner fixing frame 522, and the outer fixing frame 521 is fixed to the base plate 11 of the transport device. The inner fixing frame 522 and the outer fixing frame 521 are detachably connected. After the inner fixing frame 522 is removed from the outer fixing frame 521, the connection between the shock absorber 51 and the base plate 11 of the transport device can be released, which facilitates the replacement and maintenance of the shock absorber 51.

[0112] Please continue reading. Figure 2 and Figure 4The fixing frame 52 includes an outer fixing frame 521 and an inner fixing frame 522. The shock absorber 51 is fixed to the inner fixing frame 522, and the outer fixing frame 521 is fixed to the base plate 11 of the transport device. The inner fixing frame 522 can rotate relative to the outer fixing frame 521, and after rotating, it causes the shock absorber 51 and the support assembly 2 to fall onto the base plate 11. Please refer to the diagram for the state after it has fallen over. Figure 7 , Figure 7 This is a schematic diagram showing the state of the internal fixing frame, shock absorber and support assembly after rotation, falling onto the base plate 11.

[0113] The inner fixing frame 522 rotates relative to the outer fixing frame 521. The shock absorber 51 and the support assembly 2 fixed on the shock absorber 51 can rotate together with the inner fixing frame 522 relative to the outer fixing frame 521 and fall to the bottom plate 11 of the transport device. In this way, when the drum 4 is not placed on the support assembly 2, the inner fixing frame 522, the shock absorber 51 and the support assembly 2 are changed from the vertical placement state before rotation to the horizontal placement state after rotation, which reduces the space occupied by the above components in the vertical direction, thereby saving their storage space.

[0114] With the above-mentioned folding design, after the inner fixing frame 522, shock absorber 51 and support assembly 2 are laid down, multiple transport devices can be stacked. Compared with the state in which the inner fixing frame 522, shock absorber 51 and support assembly 2 are placed vertically, the storage space utilization rate is improved, and more of the above components can be placed in the same size storage space.

[0115] When the inner fixed frame 522 is detachably connected to the outer fixed frame 521, the inner fixed frame 522 and the outer fixed frame 521 need to be in a detached state in order for the inner fixed frame 522 to rotate relative to the outer fixed frame 521 and drive the shock absorber 51 and the support assembly 2 to rotate and then fall onto the base plate 11 of the transport device.

[0116] In some embodiments, a rotation limiting member is further provided between the inner fixing frame 522 and the outer fixing frame 521 to limit the inner fixing frame 522 when the inner fixing frame 522 rotates relative to the outer fixing frame 521.

[0117] "Limiting" refers to preventing the inner fixing frame 522 from detaching from the outer fixing frame 521. The rotation limiting member is located between the inner fixing frame 522 and the outer fixing frame 521. The first part of the rotation limiting member is fixed to the outer fixing frame 521. The inner fixing frame 522 has a limiting space (such as a limiting groove, limiting cavity, or limiting hole). The second part of the rotation limiting member is restricted within the aforementioned limiting space, thereby preventing the inner fixing frame 522 from detaching from the outer fixing frame 521 when rotating.

[0118] Alternatively, the first part of the rotation limiting member is fixed to the inner fixing frame 522, and the outer fixing frame 521 has a limiting space (e.g., a limiting groove, a limiting cavity, or a limiting hole). The second part of the rotation limiting member is restricted within the aforementioned limiting space, so that the inner fixing frame 522 does not detach from the outer fixing frame 521 when rotating.

[0119] By setting a rotation limiter between the inner fixed frame 522 and the outer fixed frame 521, during the rotation process of the inner fixed frame 522, the shock absorber 51 and the support assembly 2 being tilted down to the bottom of the base plate 11, the inner fixed frame 522 does not detach from the outer fixed frame 521. When the inner fixed frame 522, the shock absorber 51 and the support assembly 2 are subsequently restored to the vertical state, there is no need to reposition the inner fixed frame 522, which is convenient for operation.

[0120] Figure 8 This is a partial cross-sectional structural diagram of the support and damping components. Please refer to [link / reference]. Figure 8 The rotation limiting component includes a rotating shaft 523. The inner fixing frame 522 has a through hole 522a. The rotating shaft 523 passes through the through hole 522a and is fixed on the outer fixing frame 521. The inner fixing frame 522 can rotate around the rotating shaft 523 relative to the outer fixing frame 521.

[0121] When the inner fixing frame 522 rotates relative to the outer fixing frame 521 around the rotation axis 523, the inner fixing frame 522 cannot detach from the rotation axis 523 because the rotation axis 523 passes through the through hole 522a on the inner fixing frame 522. Since the rotation axis 523 is fixed to the outer fixing frame 521, the inner fixing frame 522 cannot detach from the outer fixing frame 521, which facilitates the subsequent operation of restoring the inner fixing frame 522, the shock absorber 51 and the support assembly 2 to the vertical state.

[0122] Please continue reading. Figure 9 The outer fixing frame 521 has a slot 521a, and the inner fixing frame 522 has a locking block 522b, which is embedded in the slot 521a. When the inner fixing frame 522 and the outer fixing frame 521 are in the disassembled state, the locking block 522b can be removed from the slot 521a.

[0123] Figure 8 In the embodiment shown, the opening of the slot 521a faces the positive Z-axis direction, and the card block 522b is inserted into and removed from the slot 521a along the Z-axis direction. Of course, the opening of the slot 521a can also face the X-axis / Y-axis direction, and the card block 522b is inserted into and removed from the slot 521a along the X-axis / Y-axis direction.

[0124] By providing a slot 521a on the outer fixing frame 521 and a locking block 522b on the inner fixing frame 522, the locking block 522b is embedded in the slot 521a, thereby positioning the assembly between the inner fixing frame 522 and the outer fixing frame 521 and ensuring the overall structural strength of the fixing frame 52. The locking block 522b and the slot 521a are in a movable fit. When the inner fixing frame 522 and the outer fixing frame 521 are in the disassembled state, the locking block 522b can be moved out of the slot 521a without affecting the rotation of the inner fixing frame 522 relative to the outer fixing frame 521.

[0125] Please continue reading. Figure 9 One end of the buckle 22 is rotatably connected to the support part 21, and the other end of the buckle 22 is detachably connected to the support part 21.

[0126] One end of the buckle 22 can be rotatably connected to the support 21 via a rotating mechanism, for example... Figure 8 As shown, a pivot is provided on the buckle 22, and a hole is provided on the support part 21 at a corresponding position to mate with the pivot. The pivot rotates in the hole, thereby causing the buckle 22 to rotate relative to the support part 21. Conversely, the pivot can be provided on the support part 21, for example, and a hole is provided on the buckle 22.

[0127] The other end of the buckle 22 can be detachably connected to the support part 21 by means of screwing, snapping, etc. For example, Figure 8 As shown, a fixing platform 221 is provided on the buckle 22, with a threaded hole (or through hole) on it. A threaded hole is also provided at the corresponding position on the support part 21. Screws or bolts are passed through the threaded holes (or through holes) on the buckle 22 and the threaded holes on the support part 21 to fix them together. During disassembly, simply remove the screws or bolts to separate this end of the buckle 22 from the support part 21.

[0128] By rotatably connecting one end of the buckle 22 to the support 21 and detachably connecting the other end of the buckle 22 to the support 21, rotating the buckle 22 after detaching the other end of the buckle 22 provides an entrance for the roll 4 to be placed vertically downwards into the receiving space 23 on the support assembly 2, facilitating the placement of the roll 4 and improving the packing efficiency of the electrode sheet 3 before transportation. Furthermore, since one end of the buckle 22 is rotatably connected to the support 21, this end does not need to be disassembled, further improving operational efficiency.

[0129] Please continue reading. Figure 8 The support assembly 2 also includes a buckle seat 25 disposed on the support part 21, which is used to hold a buckle 22 that is in a detached state from the support part 21.

[0130] The latch seat 25 is disposed on the side wall of the support 21 perpendicular to the rotation plane of the latch 22. The latch seat 25 has a latch groove, the width of which in the X-axis direction is slightly greater than or equal to the width of the latch 22 in the X-axis direction, so that the latch 22 can be latched into the latch groove after rotation and will not move along the Z-axis direction.

[0131] By setting a latch seat 25 to hold the latch 22 which is in a disassembled state from the support part 21, the movement of the latch 22 when it is in a disassembled state is prevented.

[0132] Figure 9 This is a schematic diagram of the exploded structure of a transport device provided in some embodiments of this application. Please refer to... Figure 9 This application embodiment also provides a transport device 10, which includes a protection device 20 as described in the above embodiment, and the protection device 20 is disposed on the base plate 11 of the transport device 10.

[0133] In this embodiment, during electrode transportation, the impact force received by the transport device 10 is transmitted from the base plate 11 of the transport device 10 to the shock-absorbing component 5. The shock-absorbing component 5 absorbs part or even most of the impact force. The top of the shock-absorbing component 5 is fixed to the bottom of the support component 2, and the bottom of the shock-absorbing component 5 is fixed to the base plate 11 of the transport device 10. That is, the shock-absorbing component 5 is located inside the transport device 10. The shock-absorbing component 5 only needs to dampen the support component 2 and the roll and electrode supported by the support component 2, without damping other components. This reduces the weight of the shock-absorbing component 5, improves the damping effect, and reduces the impact force transmitted to the electrode. It also reduces the risk of misalignment between the layers of the electrode due to large impact forces, reduces the risk of electrode scrap, and improves the electrode yield.

[0134] For details on the structure of the protection device 20, please refer to [link / reference]. Figures 2 to 8 The embodiments shown are not described in detail here.

[0135] Please see Figure 9 The transport device 10 also includes an outer cover 12, which is mounted on the base plate 11. The outer cover 12 forms a receiving space on the base plate 11, which accommodates the shock-absorbing assembly 5, the support assembly 2, the drum 4, and the electrode plate 3. The fixing frame 52 in the shock-absorbing assembly 5 is fixed to the base plate 11. The outer cover 12 can be fixed to the base plate 11 by welding, riveting, screwing, or other methods.

[0136] A sealed containment space can be formed between the outer cover 12 and the base plate 11 to achieve a dustproof effect and protect the protective device and electrode plates contained inside.

[0137] Figure 9The outer cover 12 shown is a cuboid structure. Those skilled in the art should understand that the figure is only an example, and in other embodiments, the outer cover 12 may also be other shapes, such as a cube, cylinder, frustum, etc., as long as it is a shape suitable for accommodating the electrode 3.

[0138] Please also refer to Figure 8 The transport device 10 also includes a dust cover 6, which is installed on the shock absorber.

[0139] If dust or other impurities from the environment enter the shock absorber, it will affect the shock absorption effect. By installing a dust cover 6 to cover the shock absorber, dust or other impurities can be prevented from entering the shock absorber, thus preventing the dust or other impurities from affecting the shock absorption effect and ensuring the shock absorption performance of the shock absorber.

[0140] For ease of assembly, the dust cover 6 may include a first cover and a second cover. After the first cover and the second cover are respectively placed over the shock absorber, the connection between the two is locked and fixed, thereby realizing the assembly of the dust cover 6 outside the shock absorber.

[0141] Please continue reading. Figure 3 The transport device 10 also includes a spool 4, which is used to wind the electrode sheet 3 and place it on the support assembly 2. The material of the spool 4 includes metal.

[0142] Metals can be made of materials such as steel, aluminum, and iron.

[0143] Typically, the roll material is ABS plastic (coefficient of thermal expansion 78.3*10-6 / K) or PC plastic (coefficient of thermal expansion 70.2*10-6 / K). The coefficient of thermal expansion of metal materials is 50%–80% smaller than that of ABS or PC (e.g., aluminum has a coefficient of thermal expansion of 23*10-6 / K, and iron has a coefficient of thermal expansion of 12*10-6 / K). Under the same temperature change, the deformation of a metal roll is much smaller than that of ABS and PC rolls. Therefore, by using a metal roll 4, the roll 4 is less prone to shrinkage and expansion due to temperature changes during the transport of the electrode 3. If the roll 4 shrinks, gaps will easily form between the roll 4 and the electrode 3, and between the layers of the electrode 3, resulting in reduced friction between the roll 4 and the electrode 3, and between the layers of the electrode 3. Therefore, the metal roll 4 can reduce the risk of electrode 3 misalignment caused by external impact forces exceeding the friction between the roll 4 and the electrode 3, and between the layers of the electrode 3.

[0144] In some embodiments, the diameter of the roll 4 is ≥300mm.

[0145] The diameter of the roller 4 is ≥300mm, which increases the total pressure on the surface of the electrode 3 and increases the tension of the electrode 3 during the winding process, thereby increasing the friction between the layers of the electrode 3 and reducing the risk of misalignment of the electrode 3.

[0146] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protective device for protecting an electrode (3), characterized in that, The protection device (20) includes: Support component (2), the support component (2) is used to support the spool (4) with the electrode sheet (3) wound on it; The shock-absorbing assembly (5) includes a shock absorber (51) and a fixing frame (52); the top of the shock absorber (51) is fixed to the bottom of the support assembly (2), and the fixing frame (52) includes an outer fixing frame (521) and an inner fixing frame (522). The bottom of the shock absorber (51) is fixed to the inner fixing frame (521), and the inner fixing frame (521) is detachably connected to the outer fixing frame (522). The outer fixing frame (522) is configured to be fixed to the base plate (11) of the transport device (10). The shock absorber (51) includes a first fixing part (511), a second fixing part (512), and a shock absorber unit (513). The first fixing part (511) is fixed to the support assembly (2), the shock absorption unit (513) is fixed between the first fixing part (511) and the second fixing part (512), and the second fixing part (512) is fixed to the fixing frame (52).

2. The protection device as described in claim 1, characterized in that, The shock absorption unit (513) includes an elastic element or a hydraulic element.

3. The protection device as described in claim 1, characterized in that, The support assembly (2) includes a support portion (21) and a buckle (22) is provided on the support portion (21). An accommodating space (23) for accommodating the roll (4) is formed between the support portion (21) and the buckle (22).

4. The protection device as described in claim 3, characterized in that, Within the accommodating space (23), a first buffer pad is provided on the support part (21), and / or a second buffer pad (24) is provided on the buckle.

5. The protection device as described in claim 4, characterized in that, The material of the first cushioning pad includes rubber, polyethylene or silicone, and / or the material of the second cushioning pad (24) includes rubber, polyethylene or silicone.

6. The protection device as described in claim 4, characterized in that, The thickness of the first buffer pad and / or the second buffer pad (24) ranges from 4 to 20 mm.

7. The protection device as described in claim 1, characterized in that, The inner fixing frame (522) can rotate relative to the outer fixing frame (521), and drive the shock absorber (51) and the support assembly (2) to rotate and then fall onto the base plate (11).

8. The protection device as described in claim 7, characterized in that, A rotation limiting member is provided between the inner fixing frame (522) and the outer fixing frame (521) for limiting the inner fixing frame (522) when the inner fixing frame (522) rotates relative to the outer fixing frame (521).

9. The protection device as described in claim 1, characterized in that, The outer fixing frame (521) is provided with a slot (521a), and the inner fixing frame (522) is provided with a block (522b), which is embedded in the slot (521a); When the inner fixing bracket (522) and the outer fixing bracket (521) are in the disassembled state, the locking block (522b) can be removed from the locking slot (521a).

10. The protective device according to any one of claims 3 to 6, characterized in that, One end of the buckle (22) is rotatably connected to the support (21), and the other end of the buckle (22) is detachably connected to the support (21).

11. The protective device according to any one of claims 3 to 6, characterized in that, The support assembly (2) further includes a buckle seat (25) disposed on the support part (21), the buckle seat (25) being used to place the buckle (22) which is in a detached state from the support part (21).

12. A transport device, characterized in that, include: The protective device (20) as described in any one of claims 1 to 11 is disposed on the base plate (11) of the transport device (10).

13. The transport device as claimed in claim 12, characterized in that, Also includes: Dust cover (6) is provided on the shock absorber (51).

14. The transport device as described in claim 12 or 13, characterized in that, The transport device (10) also includes the spool (4), which is used to wind the electrode (3) and place it on the support assembly (2); The material of the roll (4) includes metal.

15. The transport device as claimed in claim 14, characterized in that, The diameter of the roll (4) is ≥300mm.

Images