Battery stack processing device and battery stack processing method

Abstract

The present invention relates to the field of battery stack production, and discloses a battery stack processing device and a battery stack processing method. The battery stack processing device is used for processing hydrogen fuel cell battery stacks, and the battery stack processing device includes: a positioning assembly, including a carrier plate and a plurality of positioning rods, the plurality of positioning rods are vertically arranged on the carrier plate, the carrier plate and the plurality of positioning rods form a battery stack cavity, the battery stack can be accommodated and positioned in the battery stack cavity, and the plurality of positioning rods are at least partially arranged in pairs; a limiting sleeve device, which can be sleeved on the positioning rods arranged in pairs to limit the battery stack, and the limiting sleeve device includes a telescopic assembly and a locking assembly, the telescopic assembly has a first surface and a second surface, the positioning rods arranged in pairs can be passed through the telescopic assembly and make the battery stack contact with the first surface, the locking assembly is installed on the second surface, and the limiting sleeve device has a first state and a second state. The battery stack processing device and the battery stack processing method can improve the accuracy of battery stack processing.

Description

Technical Field

[0001] The present invention relates to the field of battery stack production, and in particular to a battery stack processing device and a battery stack processing method. Background Art

[0002] The stack of a hydrogen fuel cell is a device that directly generates electrical energy from fuel through an electrochemical reaction. The stack is assembled from an upper end plate, a lower end plate, a spring, a spring cover plate, and multiple fuel cell cells. Multiple fuel cell cells are stacked between the upper end plate and the lower end plate.

[0003] During the production and processing of hydrogen fuel cells, a strap welding machine is required to pressurize the internal structure of the hydrogen fuel cell stack. However, in the prior art, the hydrogen fuel cell stack is prone to misalignment or bending during the processing. Summary of the Invention

[0004] The present invention provides a battery stack processing device and a battery stack processing method, which can improve the accuracy of battery stack processing.

[0005] In a first aspect, the present invention provides a stack processing device for processing a hydrogen fuel cell stack, the stack processing device comprising: a positioning assembly comprising a carrier plate and a plurality of positioning rods, the plurality of positioning rods being erected on the carrier plate, the carrier plate and the plurality of positioning rods forming a stack cavity, the stack being able to accommodate and be positioned in the stack cavity, the plurality of positioning rods being at least partially arranged in pairs; a limiting sleeve device capable of being sleeved on the positioning rods arranged in pairs to limit the stack, the limiting sleeve device comprising a telescopic assembly and a locking assembly, the telescopic assembly having a first surface and a second surface, the positioning rods arranged in pairs being able to pass through the telescopic assembly and make the stack contact with the first surface, the telescopic assembly comprising a sliding plate and a fixed plate, the locking assembly connecting the sliding plate with the fixed plate, the locking assembly being installed on the second surface of the telescopic assembly, the limiting sleeve device having a first state and a second state, in the first state, the locking assembly locks the positions of the sliding plate and the fixed plate, and in the second state, the locking assembly unlocks the positions of the sliding plate and the fixed plate, so that the sliding plate and the fixed plate can move relative to each other.

[0006] Optionally, the telescopic assembly further includes an elastic member, which is located between the sliding plate and the fixed plate and elastically connects the sliding plate and the fixed plate. In the first state, the elastic member is in a compressed state.

[0007] Optionally, the locking assembly includes: a limiting member fixedly mounted on the sliding plate and located on the second surface; a driving member mounted on the fixed plate and located on the second surface; a transmission member connected to the driving member, and the movement of the driving member can drive the movement of the transmission member, so that the locking assembly locks or unlocks the position of the sliding plate and the fixed plate, thereby switching the limiting sleeve device between the first state and the second state.

[0008] Optionally, the driving member includes a first mounting shaft and an operating part, the first mounting shaft is fixedly mounted on the fixed plate and is located on the second surface, the operating part is rotatably mounted on the first mounting shaft, the operating part includes a mounting hole that passes through perpendicular to the extension direction of the operating part, the transmission member includes a second mounting shaft and a transmission part, the second mounting shaft movably passes through and extends out of the mounting holes at both ends, the transmission part is a U-shaped structure and its two ends are fixedly connected to the two ends of the second mounting shaft.

[0009] Optionally, the limit member has a recessed portion, the recessed direction of which is away from the transmission portion. In the first state, the middle position of the U-shaped structure of the transmission portion is locked to the recessed portion. In the second state, the middle position of the U-shaped structure of the transmission portion is released from the lock with the recessed portion.

[0010] Optionally, the transmission member further includes a nut, which is mounted on the transmission part and can be in contact with the second mounting shaft, and the nut can fix or fine-tune the position of the transmission part.

[0011] Optionally, the locking assembly further includes a locking hole, and the limiting sleeve device further includes a locking piece, one end of the locking piece is connected to the telescopic assembly, and the other end of the locking piece has a locking portion, the shape of the locking portion is adapted to the shape of the locking hole, and the locking portion can enable the limiting sleeve device to be locked in the first state.

[0012] Optionally, the sliding plate includes a protrusion located on a side close to the fixed plate, and the fixed plate includes a sliding groove located on a side close to the sliding plate. The protrusion can slide in the sliding groove, so that the elastic member can be directionally extended and retracted.

[0013] Optionally, there are two elastic members, and the protrusion is located between the two elastic members.

[0014] In a second aspect, the present invention provides a method for processing a battery stack, which is applied to the battery stack processing device of the first aspect. The method comprises: erecting a portion of positioning rods on a support plate; installing and aligning the battery stack in a battery stack cavity enclosed by the support plate and a portion of the positioning rods; installing the remaining positioning rods on the support plate; sleeve-mounting a limiter between the paired positioning rods and switching the limiter to a first state; welding a band to the battery stack; after completing the band welding, switching the limiter to a second state; removing the limiter and the remaining positioning rods to complete the blanking of the battery stack.

[0015] The present invention provides a stack processing device for supporting hydrogen fuel cell stacks, the stack processing device comprising a positioning assembly and a limiting sleeve device. The positioning assembly comprises a supporting plate and a positioning rod, the limiting sleeve device can be sleeved on the positioning rod, the limiting sleeve device comprises a telescopic assembly and a locking assembly, the telescopic assembly comprising a sliding plate and a fixed plate. The positioning assembly can ensure that the stack maintains good verticality and straightness during stacking, preventing the stack from being misaligned or bent during stacking, and can ensure that the stack maintains good airtightness during stacking, thereby achieving excellent performance.

[0016] Optionally, the telescopic assembly further includes an elastic member. The elastic member elastically connects the sliding plate to the fixed plate, enabling the sliding plate to move relative to the fixed plate. The elastic member elastically connects the sliding plate to the fixed plate. The coordination between the elastic member, the sliding plate, and the fixed plate facilitates disassembly of the stop sleeve assembly and prevents deformation of the positioning rod due to lateral forces from the stack.

[0017] Optionally, the locking assembly includes a limiting member, a driving member, and a transmission member. The driving member can be operated manually or electrically, and the driving member drives the transmission member to move. The limiting member is fixedly mounted on the sliding plate and is located on the second surface. The driving member is mounted on the fixed plate and is located on the second surface. The transmission member is connected to the driving member, and the movement of the driving member can drive the movement of the transmission member, so that the locking assembly locks or unlocks the position of the sliding plate and the fixed plate, thereby switching the limiting sleeve device between the first state and the second state.

[0018] Optionally, the driving member includes a first mounting shaft and an operating portion, wherein the first mounting shaft is fixedly mounted on the second surface of the fixed plate, and the operating portion is rotatably mounted on the first mounting shaft, and the operating portion includes a mounting hole extending perpendicularly to the extension direction of the operating portion. The transmission member includes a second mounting shaft and a transmission portion, wherein the second mounting shaft movably extends through the second mounting shaft and has mounting holes extending from both ends, and the transmission portion has a U-shaped structure and is fixedly connected to both ends of the second mounting shaft. When it is necessary to switch the state of the limit sleeve device, the operating portion is operated to rotate the operating portion about the first mounting shaft, thereby driving the transmission member to move relative to the operating portion.

[0019] Optionally, the position-limiting member includes a recessed portion that is recessed away from the transmission portion. In a first state, the middle position of the U-shaped structure of the transmission portion is locked to the recessed portion. In a second state, the middle position of the U-shaped structure of the transmission portion is released from the recessed portion. The recessed portion can restrict the movement of the transmission portion, thereby making the transmission portion more firmly fixed to the position-limiting member.

[0020] Optionally, the transmission member further includes a nut, which is mounted on the transmission part and can contact the second mounting shaft, and the nut can fix or fine-tune the position of the transmission part. The transmission part has threads for the nut to move, and optionally, the number of nuts can be multiple. In a preferred embodiment, the number of nuts is four, and two nuts are respectively provided at the two intersections of the transmission part and the second mounting shaft. The position of the transmission part can be fine-tuned by moving the nuts, which makes the use range of the limit sleeve device wider and also promotes the stability of the battery stack.

[0021] Optionally, the locking assembly further includes a locking hole, and the limiting sleeve device further includes a locking member, one end of the locking member being connected to the telescopic assembly, and the other end of the locking member having a locking portion. Preferably, the locking hole is elliptical in shape, the locking portion is rotatable, the locking portion is elliptical and can be accommodated in the locking hole, and the length of the major axis of the elliptical locking portion is greater than the length of the minor axis of the elliptical locking hole, so that the locking portion can lock the locking member after rotating to a certain angle, so that the limiting sleeve device is locked in the first state. The provision of the locking portion can make the limiting sleeve device more stable in the first state.

[0022] Optionally, the sliding plate includes a protrusion located on a side close to the fixed plate, and the fixed plate includes a sliding groove located on a side close to the sliding plate. The protrusion can slide in the sliding groove to cause the elastic member to expand and contract in a directional manner. The protrusion moves in the sliding groove to guide the movement direction of the sliding plate.

[0023] Optionally, there are two elastic members, and the protrusion is located between the two elastic members. The arrangement of the two elastic members makes the sliding of the sliding plate relative to the fixed plate more stable. The number of elastic members is not specifically limited.

[0024] The present invention also provides a method for processing a battery stack. In the method for processing a battery stack of the present invention, the battery stack is aligned by relying on the supporting effect of some positioning rods and the supporting plate. The final installation of the remaining positioning rods is to facilitate the stacking of the battery stack and to facilitate the unloading of the finished battery stack. The limiting sleeve device can prevent the positioning rod from being deformed by the lateral force of the battery stack. The battery stack is fixed and positioned again by a strap welding machine. The battery stack processing method provided by the present invention can prevent the battery stack from slight misalignment and bending to a certain extent, and is easy to disassemble and convenient to use with a strap welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0026] Figure 1 This is a three-dimensional schematic diagram of a positioning assembly in an embodiment of a battery stack processing device of the present invention;

[0027] Figure 2 This is a three-dimensional schematic diagram of the loading process of an embodiment of the battery stack processing device of the present invention;

[0028] Figure 3 This is a three-dimensional schematic diagram of a stack processing device according to an embodiment of the present invention after loading.

[0029] Figure 4 This is a three-dimensional schematic diagram of a telescopic assembly in an embodiment of a battery stack processing device of the present invention;

[0030] Figure 5 This is a three-dimensional schematic diagram of the limiting sleeve device in a first state in an embodiment of the battery stack processing device of the present invention;

[0031] Figure 6 This is a three-dimensional schematic diagram of the limiting sleeve device in the second state in one embodiment of the battery stack processing device of the present invention;

[0032] Figure 7 A three-dimensional schematic diagram of a battery stack processing device according to an embodiment of the present invention performing strapping;

[0033] Figure 8 This is a flowchart of an embodiment of a battery stack processing method of the present invention.

[0034] Description of reference numerals:

[0035] 100- positioning component;

[0036] 110-carrying plate;

[0037] 120 - positioning rod; 121 - first positioning rod; 122 - second positioning rod; 123 - third positioning rod; 124 - fourth positioning rod; 125 - fifth positioning rod; 126 - sixth positioning rod;

[0038] 200-limiting sleeve device;

[0039] 210- telescopic component; S1- first surface; S2- second surface;

[0040] 211-sliding plate; 2111-protruding portion;

[0041] 212-fixed plate; 2121-slide;

[0042] 213- elastic member;

[0043] 220-locking assembly;

[0044] 221-limiting piece; AR-recessed part;

[0045] 222-driving member; 2221-first mounting shaft; 2222-operating portion; AK-mounting hole;

[0046] 223-transmission member; 2231-second mounting shaft; 2232-transmission part; 2233-nut;

[0047] 224-locking hole;

[0048] 230-locking piece; 231-locking portion;

[0049] 300-insulation sheet;

[0050] 400- straps;

[0051] 500-battery stack.

[0052] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments. DETAILED DESCRIPTION

[0053] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0054] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0055] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0056] The embodiment of the present invention provides a stack processing device for processing a hydrogen fuel cell stack, such as Figure 1 、 2As shown in Figures 3 and 4, the battery stack processing device includes a positioning assembly 100 and a limiting sleeve device 200. The positioning assembly 100 includes a carrier plate 110 and a plurality of positioning rods 120. The plurality of positioning rods 120 are at least partially arranged in pairs, and the limiting sleeve device 200 can be mounted on the paired positioning rods 120. The positioning assembly 100 can ensure that the battery stack 500 maintains good verticality and straightness when stacked, preventing the battery stack 500 from being misaligned or bent during stacking, and can ensure that the battery stack 500 maintains good airtightness during stacking, thereby exerting excellent performance.

[0057] In some optional embodiments, the battery stack 500 is composed of an upper end plate, a lower end plate, a spring, a spring cover plate, and hundreds of bipolar plate cells. The bipolar plate cells are stacked between the upper end plate and the lower end plate. The springs and the spring cover plate maintain internal stress for the pressurized and bundled battery stack 500.

[0058] like Figure 1 As shown, the positioning assembly 100 includes a carrier plate 110 and a plurality of positioning rods 120 . The plurality of positioning rods 120 are erected on the carrier plate 110 . The carrier plate 110 and the plurality of positioning rods 120 form a stack cavity. The stack 500 is accommodated and positioned in the stack cavity.

[0059] Preferably, if Figure 3 As shown, the positioning rods 120 include a first positioning rod 121, a second positioning rod 122, a third positioning rod 123, a fourth positioning rod 124, a fifth positioning rod 125, and a sixth positioning rod 126. The first positioning rod 121 is located on the left side of the carrier plate 110, the second positioning rod 122 and the third positioning rod 123 are located on the rear side of the carrier plate 110, and the second positioning rod 122 is located between the first positioning rod 121 and the third positioning rod 123. The sixth positioning rod 126 is located on the right side of the carrier plate 110, and the fourth positioning rod 124 and the fifth positioning rod 125 are located on the front side of the carrier plate 110, with the fourth positioning rod 124 located between the first positioning rod 121 and the fifth positioning rod 125.

[0060] like Figure 4 As shown, Figure 5 As shown, the limiting sleeve device 200 can be sleeved on the positioning rod 120 to limit the battery stack 500. The limiting sleeve device 200 includes a telescopic component 210 and a locking component 220. The telescopic component 210 has a first surface S1 and a second surface S2. At least some of the multiple positioning rods 120 are arranged in pairs. The paired positioning rods 120 can be passed through the telescopic component 210 and make the battery stack 500 contact the first surface S1. The locking component 220 is installed on the second surface S2.

[0061] The telescopic assembly includes a sliding plate 211 and a fixed plate 212, and the locking assembly 220 connects the sliding plate 211 and the fixed plate 212. The locking assembly 220 is installed on the second surface S2 of the telescopic assembly 210. The limiting sleeve device 200 has a first state and a second state, such as Figure 5 As shown, in the first state, the locking assembly 220 locks the positions of the sliding plate 211 and the fixed plate 212, as shown in FIG. Figure 6 As shown, in the second state, the locking assembly 220 unlocks the positions of the sliding plate 211 and the fixed plate 212 , so that the sliding plate 211 and the fixed plate 212 can move relative to each other.

[0062] During stacking, after the battery stack 500 is aligned by the first positioning rod 121, the second positioning rod 122, and the third positioning rod 123, the battery stack 500 is placed in the battery stack cavity. Then, the fourth positioning rod 124, the fifth positioning rod 125, and the sixth positioning rod 126 are aligned with the carrier plate 110. Finally, the limiting sleeve device 200 is sleeved on the paired positioning rods 120. For example, Figure 3 As shown, the second positioning rod 122 and the fourth positioning rod 124 are arranged in pairs, and the third positioning rod 123 and the fifth positioning rod 125 are arranged in pairs. The limiting sleeve device 200 is set between the second positioning rod 122 and the fourth positioning rod 124 and between the third positioning rod 123 and the fifth positioning rod 125. Then the limiting sleeve device 200 is switched to the first state, so that the telescopic assembly 210 is in a compressed state, which can prevent the internal misalignment of the battery stack 500. Figure 7 As shown, the battery stack 500 is then threaded with the binding strap 400 and laser welded to complete the battery stack 500. After bundling, the limiting sleeve 200 is switched to the second state. The limiting sleeve 200 is then removed, followed by the fourth positioning rod 124, the fifth positioning rod 125, and the sixth positioning rod 126. Finally, the battery stack 500 is unloaded.

[0063] For example, Figure 3 As shown, the fourth, fifth, and sixth positioning rods 124, 125, and 126 are installed last to facilitate stacking of the fuel cell stack 500 and unloading of the finished fuel cell stack 500. The number and arrangement of the positioning rods 120 are not specifically limited; this is merely a preferred embodiment and can be adjusted based on actual conditions.

[0064] Alternatively, as Figure 7 As shown, the battery stack processing device further includes an insulating sheet 300 , which is installed on both sides of the battery stack 500 to prevent the battery stack 500 from being exposed and absorbing dust.

[0065] In some optional embodiments, such as Figure 4As shown, the telescopic assembly 210 also includes an elastic member 213. The elastic member 213 elastically connects the sliding plate 211 to the fixed plate 212. In the first state, the elastic member 213 is in a compressed state. The coordination between the elastic member 213, the sliding plate 211, and the fixed plate 212 facilitates disassembly of the limiting sleeve device 200 and prevents deformation of the positioning rod 120 due to lateral forces from the battery stack 500.

[0066] In some optional embodiments, such as Figure 5 、 6 As shown, the locking assembly 220 includes a limiting member 221, a driving member 222, and a transmission member 223. The driving member 222 can be operated manually or electrically, and the driving member 222 drives the transmission member 223, so that the transmission member 223 moves. The limiting member 221 is fixedly mounted on the sliding plate 211 and is located on the second surface S2. The driving member 222 is mounted on the fixed plate 212 and is located on the second surface S2. The transmission member 223 is connected to the driving member 222, and the movement of the driving member 222 can drive the movement of the transmission member 223, so that the locking assembly 220 locks or unlocks the position of the sliding plate 211 and the fixed plate 212, thereby switching the limiting sleeve device 200 between the first state and the second state.

[0067] In some optional embodiments, such as Figure 5 、 6 As shown, the driving member 222 includes a first mounting shaft 2221 and an operating portion 2222. The first mounting shaft 2221 is fixedly mounted on the second surface S2 of the fixed plate 212. The operating portion 2222 is rotatably mounted on the first mounting shaft 2221. The operating portion 2222 includes a mounting hole AK extending perpendicularly to the extension direction of the operating portion 2222. The transmission member 223 includes a second mounting shaft 2231 and a transmission portion 2232. The second mounting shaft 2231 is movable through and has mounting holes AK extending from both ends. The transmission portion 2232 has a U-shaped structure and is fixedly connected to the ends of the second mounting shaft 2231. When the state of the limit sleeve device 200 needs to be switched, the operating portion 2222 is operated, causing the operating portion 2222 to rotate about the first mounting shaft 2221, thereby driving the transmission member 223 to move relative to the operating portion 2222.

[0068] In some optional embodiments, such as Figure 5 、 6 As shown, the limiting member 221 has a recessed portion AR, which is recessed away from the transmission portion 2232. In a first state, the middle position of the U-shaped structure of the transmission portion 2232 is locked to the recessed portion AR. In a second state, the middle position of the U-shaped structure of the transmission portion 2232 is unlocked from the recessed portion AR. The recessed portion AR can restrict the movement of the transmission portion 2232, making the transmission portion 2232 more firmly fixed to the limiting member.

[0069] In some optional embodiments, such as Figure 5 、 6 As shown, the transmission member 223 also includes a nut 2233, which is installed on the transmission part 2232 and can contact the second installation shaft 2231. The nut 2233 can fix or fine-tune the position of the transmission part 2232. The transmission part 2232 has a thread for the nut 2233 to move. Optionally, the number of nuts 2233 can be multiple. In a preferred embodiment, the number of nuts 2233 is four, and two nuts 2233 are respectively provided at the two intersections of the transmission part 2232 and the second installation shaft 2231. The position of the transmission part 2232 can be fine-tuned by moving the nut 2233, so that the use range of the limit sleeve device 200 is wider, and the stability of the stacking of the battery stack 500 is also promoted.

[0070] In some optional embodiments, such as Figure 5 、 6 As shown, the locking assembly 220 further includes a locking hole 224, and the limiting sleeve device 200 further includes a locking member 230. One end of the locking member 230 is connected to the telescopic assembly 210, and the other end of the locking portion 231 has a locking portion 231. Preferably, the locking hole 224 is elliptical in shape, and the locking portion 231 is rotatable. The locking portion 231 is elliptical and can be accommodated in the locking hole 224. The length of the major axis of the elliptical locking portion 231 is greater than the length of the minor axis of the elliptical locking hole 224. Therefore, after the locking portion 231 rotates to a certain angle, it can lock the locking member 230 in place, so that the limiting sleeve device 200 is locked in the first state. The provision of the locking portion 231 can make the limiting sleeve device 200 more stable in the first state.

[0071] In some optional embodiments, such as Figure 4 As shown, the sliding plate 211 includes a protrusion 2111 located on a side close to the fixed plate 212. The fixed plate 212 includes a sliding groove 2121 located on a side close to the sliding plate 211. The protrusion 2111 can slide in the sliding groove 2121, causing the elastic member 213 to expand and contract in a directional manner. The protrusion 2111 moves in the sliding groove 2121, guiding the movement direction of the sliding plate 211.

[0072] In some optional embodiments, such as Figure 4 As shown, there are two elastic members 213, and the protrusion 2111 is located between the two elastic members 213. The arrangement of the two elastic members 213 makes the sliding of the sliding plate 211 relative to the fixed plate 212 more stable. The number of the elastic members 213 is not specifically limited.

[0073] The embodiment of the present invention further provides a battery stack processing method, which is applied to the battery stack processing device of any of the above embodiments. Figure 8 As shown, the battery stack processing method includes steps S110 to S170.

[0074] In step S110, part of the positioning rods 120 are manually erected on the carrier plate 110; in step S120, the battery stack 500 is installed and aligned in the battery stack cavity enclosed by the carrier plate 110 and part of the positioning rods 120 by a conveying mechanism; in step S130, the remaining positioning rods 120 are manually installed on the carrier plate 110; in step S140, the limiting sleeve device 200 is manually sleeved between the paired positioning rods 120, and the limiting sleeve device 200 is switched to the first state; in step S150, the battery stack 500 is welded with the strap 400 by a strap welding machine; in step S160, after completing the welding of the strap 400, the limiting sleeve device 200 is manually switched to the second state; in step S170, the limiting sleeve device 200 is manually removed, and the remaining positioning rods 120 are manually removed to complete the battery stack unloading.

[0075] For example, Figure 1 、 2 As shown in Figures 3 and 7, the positioning rods 120 include a first positioning rod 121, a second positioning rod 122, a third positioning rod 123, a fourth positioning rod 124, a fifth positioning rod 125, and a sixth positioning rod 126. In step S110, some positioning rods 120 are manually erected on the carrier plate 110. Some positioning rods 120 include the first positioning rod 121, the second positioning rod 122, and the third positioning rod 123. In step S130, the remaining positioning rods 120 are manually installed on the carrier plate 110. The remaining positioning rods 120 include the fourth positioning rod 124, the fifth positioning rod 125, and the sixth positioning rod 126. The remaining positioning rods 120 are installed last to facilitate the stacking of the battery stack 500 and to facilitate the unloading of the finished battery stack 500.

[0076] In step S140, the limiting sleeve device 200 prevents the positioning rod 120 from being deformed by the lateral force of the battery stack 500. In step S150, the battery stack 500 is repositioned using a strap welding machine. The battery stack processing method provided in this embodiment of the present invention can prevent minor misalignment and bending of the battery stack 500 to a certain extent, and is easy to disassemble and use with a strap welding machine.

[0077] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A stack processing device for processing hydrogen fuel cell stacks, characterized in that: The stack processing device includes: A positioning assembly includes a carrier plate and a plurality of positioning rods, wherein the plurality of positioning rods are vertically arranged on the carrier plate, the carrier plate and the plurality of positioning rods enclose a stack cavity, the stack can be accommodated and positioned in the stack cavity, and the plurality of positioning rods are at least partially arranged in pairs; 20. The foldable platform of claim 19, wherein the locking assembly is configured to lock the sliding plate and the fixing plate ...

2. The battery stack processing device according to claim 1, characterized in that: The locking assembly comprises: a limiting member fixedly mounted on the sliding plate and located on the second surface; a driving member, mounted on the fixing plate and located on the second surface; A transmission member is connected to the driving member, and the movement of the driving member can drive the movement of the transmission member, so that the locking assembly locks or unlocks the position of the sliding plate and the fixed plate, thereby switching the limiting sleeve device between the first state and the second state.

3. The battery stack processing device according to claim 2, characterized in that: The driving member includes a first mounting shaft and an operating part, the first mounting shaft is fixedly mounted on the fixed plate and is located on the second surface, the operating part is rotatably mounted on the first mounting shaft, the operating part includes a mounting hole that passes through perpendicular to the extension direction of the operating part, the transmission member includes a second mounting shaft and a transmission part, the second mounting shaft movably passes through and extends out of the mounting holes at both ends, the transmission part is a U-shaped structure and both ends are fixedly connected to the two ends of the second mounting shaft.

4. The battery stack processing device according to claim 3, characterized in that: The limiting member has a recessed portion, the recessed direction of which is away from the transmission portion. In the first state, the middle position of the U-shaped structure of the transmission portion is locked to the recessed portion. In the second state, the middle position of the U-shaped structure of the transmission portion is released from the lock with the recessed portion.

5. The battery stack processing device according to claim 3, characterized in that: The transmission member further includes a nut, which is mounted on the transmission part and can be in contact with the second mounting shaft. The nut can fix or fine-tune the position of the transmission part.

6. The battery stack processing device according to claim 1, characterized in that: The locking assembly also includes a locking hole, and the limiting sleeve device also includes a locking piece, one end of the locking piece is connected to the telescopic assembly, and the other end of the locking piece has a locking portion, the shape of the locking portion is adapted to the shape of the locking hole, and the locking portion can enable the limiting sleeve device to be locked in the first state.

7. The battery stack processing device according to claim 1, characterized in that: The sliding plate includes a protrusion located on a side close to the fixed plate, and the fixed plate includes a sliding groove located on a side close to the sliding plate. The protrusion can slide in the sliding groove, so that the elastic member can be directional and extended.

8. The battery stack processing device according to claim 7, characterized in that: There are two elastic members, and the protrusion is located between the two elastic members.

9. A battery stack processing method, applied to the battery stack processing device according to any one of claims 1 to 8, characterized in that: The battery stack processing method includes: Part of the positioning rods are erected on the bearing plate; Installing and aligning the battery stack in the battery stack cavity enclosed by the carrier plate and part of the positioning rods; Install the remaining positioning rods on the supporting plate; Sleeve the limiting sleeve device between the positioning rods arranged in pairs, and switch the limiting sleeve device to the first state; performing strap welding on the battery stack; After the binding strap welding is completed, the limiting sleeve device is switched to the second state; The limiting sleeve device and the remaining positioning rods are removed to complete the blanking of the battery stack.

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