A fuel cell stack pressing device and steel strapping equipment suitable for fuel cell stacks

Abstract

The present invention provides a stack pressing device and steel belt bundling equipment suitable for a fuel cell stack. The device comprises: an electric push positioning assembly, which is used to support and limit the bottom of the fuel cell stack; a top pressing assembly, which is arranged directly above the electric push positioning assembly, and is used to perform top pressing on the fuel cell stack on the electric push positioning assembly. The present invention supports the bottom of the fuel cell stack and limits the circumferential position of the fuel cell stack through the electric push positioning assembly, which can avoid the tipping over or unstable support of the fuel cell stack; the top pressing of the fuel cell stack on the electric push positioning assembly through the top pressing assembly can further limit the stability of the fuel cell stack, and no manual assistance is required for straightening, so as to avoid the problem that the fuel cell stack is tilted, resulting in poor consistency and quality of the products bundled with steel belts, and solves the problem that manual assistance is required for straightening during the existing steel belt bundling of the stack, resulting in low production efficiency and poor product consistency in manual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of steel strip bundling of fuel cell stacks, and in particular to a stack pressing device and steel strip bundling equipment suitable for fuel cell stacks. Background Art

[0002] With the rapid development of hydrogen fuel cell application technology, the application fields of hydrogen fuel cell power modules have gradually expanded to electric vehicles, energy storage, communications, mining and other fields. At present, according to the established technical route, multiple single battery modules need to be connected in series or in parallel, arranged and combined together to form a single battery module unit, and steel belts need to be used for binding in this process.

[0003] At present, the existing steel strapping for fuel cell stacks is basically done manually. The fuel cell stack is directly placed on the support seat, which is prone to tipping and displacement during the steel strapping process. It only requires manual assistance to straighten it during strapping, otherwise the strapping steel strap is prone to tilt, etc. The bundled products have poor consistency and the quality of the products cannot be effectively guaranteed. At the same time, manual operation has low production efficiency and is not suitable for industrial mass production. Summary of the invention

[0004] In view of this, the present invention proposes a stack pressing device and steel strip bundling equipment suitable for a fuel cell stack, aiming to solve the problem that manual assistance is required for straightening the existing steel strip bundling of the stack, resulting in low manual operation production efficiency and poor product consistency.

[0005] On the one hand, the present invention proposes a stack pressing device suitable for a fuel cell stack, the device comprising: an electric push positioning assembly, used for bottom support and position limiting of the fuel cell stack; a top pressing assembly, arranged directly above the electric push positioning assembly, used for top pressing of the fuel cell stack on the electric push positioning assembly; the top pressing assembly comprises: a pressing support seat; a stack pressing piece, arranged on the pressing support seat in a position-adjustable manner along the height direction, used for top pressing of the fuel cell stack on the electric push carrier; a steel belt pressing piece, arranged on the stack pressing piece, used for top pressing of the steel belt pressed against the top wall of the fuel cell stack; the steel belt The pressing piece includes: a vertical telescopic driving piece; a steel belt pressing body, which is arranged at the telescopic end of the vertical telescopic driving piece, and is used for the steel belt to move downward under the action of the vertical telescopic driving piece after the steel belt is horizontally extended along the top wall of the fuel cell stack, until it is pressed and contacted on the top wall of the steel belt, so that the steel belt is pressed and fixed on the top wall of the fuel cell stack; a U-shaped groove structure is provided at the bottom of the stack pressing piece, and the solid part of the stack pressing piece is used for pressing on the top wall of the fuel cell stack, and the U-shaped groove structure is used for making way for the steel belt, so that the steel belt can be horizontally extended along the top wall of the fuel cell stack in the U-shaped groove structure; the steel belt pressing piece is arranged in the U-shaped groove structure.

[0006] Furthermore, in the above-mentioned stack pressing device suitable for a fuel cell stack, the vertical telescopic driving member is a telescopic cylinder.

[0007] Furthermore, the above-mentioned stack pressing device suitable for a fuel cell stack, the electric push positioning assembly includes: an electric push carrier; a circumferential limiter, which is arranged on the electric push carrier, and the electric push carrier is used to support the bottom of the fuel cell stack, and to circumferentially limit the fuel cell stack through the circumferential limiter.

[0008] Furthermore, in the above-mentioned stack pressing device suitable for a fuel cell stack, the electric push positioning assembly is a mobile assembly, and the electric push carrier of the electric push positioning assembly is connected to a transverse conveying member, so that the electric push carrier can move laterally under the action of the transverse conveying member, thereby driving the fuel cell stack to move laterally, so that the fuel cell stack can move between the loading position and the bundling position, so as to facilitate the loading, unloading and bundling of the fuel cell stack.

[0009] Furthermore, in the above-mentioned stack pressing device suitable for a fuel cell stack, the electric push positioning assembly also includes: a carrier support seat for supporting the electric push carrier.

[0010] Furthermore, in the above-mentioned stack pressing device suitable for a fuel cell stack, a pressing positioning assembly is also provided between the top pressing assembly and the electric push positioning assembly, which is used to limit the relative position between the top pressing assembly and the electric push positioning assembly when the top pressing assembly performs top pressing on the fuel cell stack, so as to achieve precise positioning of the top pressing assembly.

[0011] The stack pressing device suitable for a fuel cell stack provided by the present invention supports the fuel cell stack at the bottom and limits the circumferential position thereof by an electric push positioning assembly, thereby preventing the fuel cell stack from tipping over or unstable support; top pressing of the fuel cell stack on the electric push positioning assembly is performed by a top pressing assembly, thereby further limiting the stability of the fuel cell stack, and no manual assistance is required for straightening, thereby preventing the fuel cell stack from tilting, resulting in poor consistency and unguaranteed quality of products bundled with steel strips, and solving the problem that manual assistance is required for straightening of existing steel strips for bundling of fuel cell stacks, resulting in low production efficiency of manual operation and poor product consistency.

[0012] On the other hand, the present invention also proposes a steel strip bundling device suitable for a fuel cell stack, on which the above-mentioned stack pressing device is provided.

[0013] Since the battery stack pressing device has the above-mentioned effects, the steel strip bundling equipment having the battery stack pressing device also has corresponding effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0015] Figure 1 A schematic diagram of the structure of a steel strip bundling device applicable to a fuel cell stack provided in an embodiment of the present invention;

[0016] Figure 2 A front view of a steel strip bundling device applicable to a fuel cell stack provided in an embodiment of the present invention;

[0017] Figure 3 A schematic structural diagram of a stack pressing device applicable to a fuel cell stack provided in an embodiment of the present invention;

[0018] Figure 4 A side view of a stack pressing device applicable to a fuel cell stack provided in an embodiment of the present invention;

[0019] Figure 5 A schematic diagram of the structure of a top pressing assembly provided in an embodiment of the present invention;

[0020] Figure 6 A side view of a top press assembly provided by an embodiment of the present invention;

[0021] Description of reference numerals:

[0022] 100-battery stack pressing device, 1-electric push positioning assembly, 11-electric push carrier, 12-circumferential limiter, 13-carrier support seat, 14-lifting piece, 2-top pressing assembly, 21-pressing support seat, 211-bottom fixing seat, 212-guide rod, 213-top support seat, 214-lifting ear, 22-battery stack pressing piece, 221-U-shaped groove structure, 23-steel belt pressing piece, 231-vertical telescopic drive piece, 232-steel belt pressing body, 3-pressing positioning assembly, 31-vertical positioning column, 4-fuel cell stack, 5-steel belt. DETAILED DESCRIPTION

[0023] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Device Example:

[0025] See also Figures 1 to 4 , which shows the preferred structure of a stack pressing device for a fuel cell stack provided by an embodiment of the present invention. As shown in the figure, the stack pressing device comprises: an electric push positioning assembly 1, a top pressing assembly 2 and a pressing positioning assembly 3; wherein,

[0026] The electric push positioning assembly 1 is used to support and limit the bottom of the fuel cell stack 4. Specifically, the electric push positioning assembly 1 can be arranged on a working surface to support the bottom of the fuel cell stack 4 and limit the circumferential position to avoid displacement of the fuel cell stack 4.

[0027] The top pressing assembly 2 is arranged directly above the electric push positioning assembly 1, and is used to perform top pressing on the fuel cell stack 4 on the electric push positioning assembly 1, and to perform top pressing on the steel belt 5 pressed against the top wall of the fuel cell stack 4, so as to facilitate bundling of the steel belt 5.

[0028] Specifically, the top pressing assembly 2 is arranged directly above the electric push positioning assembly 1, and the top pressing assembly 2 is used to press the fuel cell stack 4, so that the fuel cell stack 4 is positioned both up and down and in the circumferential direction, and the fuel cell stack 4 is completely positioned. The top pressing assembly 2 can also press the steel belt 5 extending along the top wall of the fuel cell stack 4 on the top of the fuel cell stack 4, so that the steel belt 5 extending along the top wall of the fuel cell stack 4 is clamped between the fuel cell stack 4 and the top pressing assembly 2, so that the steel belt 5 extending horizontally along the top wall of the fuel cell stack 4 is bent, especially bent downward to extend along the side wall of the fuel cell stack 4.

[0029] A pressing and positioning assembly 3 is also provided between the top pressing assembly 2 and the electric push positioning assembly 1, which is used to limit the relative position between the top pressing assembly 2 and the electric push positioning assembly 1 when the top pressing assembly 2 performs top pressing on the fuel cell stack 4, so as to achieve precise positioning of the top pressing assembly 2. Specifically, the pressing and positioning assembly 3 can be provided between the top pressing assembly 2 and the electric push positioning assembly 1, and when the top pressing assembly 2 performs top pressing on the fuel cell stack 4, the relative position between the top pressing assembly 2 and the electric push positioning assembly 1 is limited, that is, by limiting the relative position between the top pressing assembly 2 and the electric push positioning assembly 1, when the top pressing assembly 2 is pressed on the fuel cell stack 4, the position of the top pressing assembly 2 and the fuel cell stack 4 is completely fitted, thereby achieving precise positioning of the top pressing assembly 2.

[0030] In one implementation of this embodiment, the electric push positioning assembly 1 is a fixed structure, which can be fixedly installed directly below the top pressing assembly 2 to provide bottom support and circumferential limitation for the fuel cell stack 4 .

[0031] In another implementation of this embodiment, Figure 2 As shown, the electric push positioning assembly 1 can be a mobile structure, which can drive the fuel cell stack 4 to move horizontally (such as Figure 2 The mobile electric push positioning assembly 1 is arranged on the working surface, and can provide bottom support and circumferential limit to the fuel cell stack 4 to avoid displacement of the fuel cell stack 4. At the same time, it can also be a mobile assembly that can drive the top-supported fuel cell stack 4 to move laterally, so that the fuel cell stack 4 can move to the left with the mobile electric push positioning assembly 1 to the loading and unloading position (such as the horizontal direction shown). Figure 2 left position as shown), and can also be moved to the right to the bundling position (as shown Figure 2The right side position shown in the figure), in the embodiment, the mobile electric push positioning assembly 1 and the fuel cell stack 4 are two respectively placed in the loading and unloading position and the bundling position. In actual application, there is only one. The two in the figure only show two positions respectively, not two positions with fuel cell stacks 4 at the same time. The electric push positioning assembly 1 moves to the loading and unloading position, and the fuel cell stack 4 to be bundled can be installed on the electric push positioning assembly 1 by hoisting, and the fuel cell stack 4 to be bundled is driven by the electric push positioning assembly 1 to move to the bundling position, so that the top pressing assembly 2 is used at the bundling position for top pressing, and the relevant equipment is used for bending, and the steel strip is welded by the steel strip welding mechanism to complete the bundling of the steel strip; finally, after the top pressing assembly 2 releases the top pressing, the mobile electric push positioning assembly 1 drives the fuel cell stack 4 to return to the position, that is, moves to the left to the loading and unloading position, and the bundled fuel cell stack 4 is unloaded to carry out the subsequent bundling of the fuel cell stack 4.

[0032] Continue to see Figure 3 , the electric push positioning assembly 1 includes: an electric push carrier 11, a circumferential limiter 12 and a carrier support seat 13; wherein, the electric push carrier 11 is provided with a circumferential limiter 12, and the electric push carrier 11 is used to support the bottom of the fuel cell stack 4, and the fuel cell stack 4 is circumferentially limited by the circumferential limiter 12. Specifically, a carrier support seat 13 is provided at the bottom of the electric push carrier 11 to support the electric push carrier 11 through the carrier support seat 13. In one implementation of the present embodiment, the carrier support seat 13 can be fixed on a working surface or the ground to fix and support the electric push carrier 11 above, and support the fuel cell stack 4 through the electric push carrier 11, that is, the fuel cell stack 4 can be placed vertically on the electric push carrier 11. There may be multiple circumferential limiters 12, which are fixedly mounted on the top wall of the electric push carrier 11. There are at least four circumferential limiters 12, which can limit the four side walls of the fuel cell stack 4 respectively. In this embodiment, there are six circumferential limiters 12, and the side walls on both sides of the width direction of the fuel cell stack 4 are limited by two circumferential limiters 12, and the side walls on both sides of the thickness direction are limited by one circumferential limiter 12, so as to limit the circumference of the fuel cell stack 4, so that the fuel cell stack 4 is completely fixed between the six circumferential limiters 12. In this embodiment, a hoisting member 14 may be provided on the electric push carrier 11, which is used to hoist the electric push carrier 11 so as to hoist the fuel cell stack 4.

[0033] exist Figure 2In another embodiment shown, the carrier support seat 13 is a sliding support seat, which can slide and support the electric push carrier 11, that is, the electric push carrier 11 is arranged on the carrier support seat 13 in a sliding manner in the transverse direction to drive the fuel cell stack 4 to move transversely. In order to realize the transverse movement of the electric push carrier 11, preferably, the electric push carrier 11 can be connected to a transverse conveying member (not shown in the figure), so that the electric push carrier 11 can move transversely under the action of the transverse conveying member, thereby driving the fuel cell stack 4 to move transversely, so that the fuel cell stack 4 can move transversely to the bundling position for bundling with the steel belt 5, and can also move to the loading and unloading position on one side of the bundling position to install and unload the fuel cell stack 4. Specifically, the transverse conveying member serves as a transverse movement driving member, which can drive the electric push carrier 11 to slide in the transverse direction. Among them, the transverse conveying member can be a linear screw slide group, which can convert the rotation of the motor into the transverse reciprocating motion of the electric push carrier 11 to realize the transverse movement of the electric push carrier 11. In this embodiment, the electric push carrier 11 can be placed on a slide plate of a linear screw slide group and can move laterally with the slide plate.

[0034] Continue to see Figure 1 Figure 6 The top pressing assembly 2 includes: a pressing support seat 21, a stack pressing piece 22 and a steel belt pressing piece 23; wherein the stack pressing piece 22 is arranged on the pressing support seat 21 in a position-adjustable manner along the height direction, and is used to perform top pressing on the fuel cell stack 4 on the electric push carrier 11; the steel belt pressing piece 23 is arranged on the stack pressing piece 22, and is used to perform top pressing on the steel belt that is pressed against the top wall of the fuel cell stack 4.

[0035] Specifically, the pressing support seat 21 is a support seat structure, which can provide sliding support for the battery stack pressing part 22; wherein, the bottom of the pressing support seat 21 has two bottom fixing seats 211, which are respectively placed on both sides of the Y-axis direction of the carrier support seat 13, wherein the pressing support seat 21 and the carrier support seat 13 can be fixedly connected by welding or other means, and can also be an integrated structure; each bottom fixing seat 211 is provided with two guide rods 212, that is, there are four guide rods 212 in total, which respectively guide and support the four corners of the battery stack pressing part 22; the tops of the four guide rods 212 are also fixedly connected to the top support seat 213, and the top support seat 213 can be provided with a lifting ear 214, so that the device can be hoisted as a whole. The stack press 22 is arranged on the press support seat 21 in a position-adjustable manner along the height direction, i.e., the Z-axis direction. In particular, sliding sleeves may be provided at the four corners of the stack press 22, and the sliding sleeves may be slidably mounted on the guide rod 212 to slide up and down along the guide rod 212 to achieve position adjustment, so that after the fuel cell stack 4 is installed and moved into place, i.e., moved to the bundling position, the stack press 22 may slide downward until the bottom wall of the stack press 22 is pressed against the top wall of the fuel cell stack 4 to achieve top pressing of the fuel cell stack 4; the stack press 22 may also slide upward after the fuel cell stack 4 is bundled to make way for the unloading of the fuel cell stack 4. The steel belt press 23 is arranged on the stack press 22, and can slide up and down with the stack press 22. After the stack press 22 slides downward and the bottom wall is pressed and contacted on the top wall of the fuel cell stack 4, the steel belt 5 can be bent on the fuel cell stack 4, so that the steel belt 5 can extend horizontally along the top wall of the fuel cell stack 4. The steel belt press 23 can apply a pressing force to the steel belt 5, so that the steel belt is pressed between the top wall of the fuel cell stack 4 and the steel belt press 23, thereby realizing top pressing of the steel belt pressed and contacted on the top wall of the fuel cell stack 4, and avoiding displacement and warping of the steel belt during the bending process.

[0036] Continue to see Figure 6A U-shaped groove structure 221 is provided at the bottom of the stack press 22, and the solid part of the stack press 22 is used to be pressed on the top wall of the fuel cell stack 4. The U-shaped groove structure 221 is used to make way for the steel belt so that the steel belt can extend horizontally along the top wall of the fuel cell stack 4 in the U-shaped groove structure 221; the steel belt press 23 is arranged in the U-shaped groove structure 221 to apply a pressing force to the steel belt after the steel belt extends horizontally along the top wall of the fuel cell stack 4, so that the steel belt is pressed between the top wall of the fuel cell stack 4 and the steel belt press 23. Specifically, the cross section of the stack press 22 can be a square structure that matches the cross section of the fuel cell stack 4, and a U-shaped groove structure 221 is provided at the bottom of the stack press 22 as a clearance groove, so that after the steel belt is bent from one side, the steel belt can extend horizontally to the other side along the top wall of the fuel cell stack 4. Therefore, the stack press 22 can not only press the top of the fuel cell stack 4, but also make way for the steel belt to achieve the upper bending and horizontal extension of the steel belt. The steel belt press 23 is arranged in the U-shaped groove structure 221 to apply a pressing force to the steel belt after the steel belt extends horizontally along the top wall of the fuel cell stack 4, so that the steel belt is pressed between the top wall of the fuel cell stack 4 and the steel belt press 23. Among them, the position and number of the U-shaped groove structure 221 are adapted to the position and number of the steel belts required to be tied on the fuel cell stack 4. In this embodiment, there are four U-shaped groove structures 221.

[0037] Continue to see Figure 6 The steel belt pressing member 23 may include: a vertical telescopic driving member 231 and a steel belt pressing body 232; wherein, the steel belt pressing body 232 is arranged at the telescopic end of the vertical telescopic driving member 231, and is used for moving vertically downward under the action of the vertical telescopic driving member 231 after the steel belt is bent again and horizontally extended along the top wall of the fuel cell stack 4, until it is pressed and contacted on the top wall of the steel belt, so that the steel belt is pressed and fixed on the top wall of the fuel cell stack 4.

[0038] Specifically, the fixed end of the vertical telescopic driving member 231 (such as Figure 6 The top of the stack press member 22 can be fixedly mounted on the stack press member 22. The vertical telescopic drive member 231 is vertically arranged in the U-shaped groove structure 221 of the stack press member 22 and can perform vertical telescopic movement. The steel belt pressing body 232 is arranged in the U-shaped groove structure 221 in a manner that it can move up and down. The steel belt pressing body 232 is arranged at the telescopic end of the vertical telescopic drive member 231 (as shown in FIG. Figure 6The bottom end shown in the figure) is used for the steel belt to move vertically downward under the action of the vertical telescopic driving member 231 after the steel belt extends horizontally along the top wall of the fuel cell stack 4, until it presses against the top wall of the steel belt, so that the steel belt is pressed against the top wall of the fuel cell stack 4, that is, the steel belt is clamped between the steel belt pressing body 232 and the top wall of the fuel cell stack 4. Among them, the steel belt pressing body 232 can be a plate-like structure or other structures, and this embodiment does not impose any limitation on it.

[0039] In the present embodiment, the pressing and positioning assembly 3 is arranged between the battery stack pressing part 22 and the circumferential limiter 12, and the pressing and positioning assembly 3 includes vertical positioning columns 31 corresponding to the circumferential limiter 12 one by one; wherein, the vertical positioning columns 31 are arranged around the battery stack pressing part 22 along the circumference of the battery stack pressing part 22, and the top of the circumferential limiter 12 is provided with a positioning groove, which is adapted to the vertical positioning columns 31 and is used to position the battery stack pressing part 22. Specifically, there can be six vertical positioning columns 31 and they are arranged around the battery stack pressing part 22 one by one corresponding to the circumferential limiter 12, and when the battery stack pressing part 22 slides into place, the vertical positioning columns 31 can be respectively inserted into the positioning grooves of the corresponding circumferential limiter 12 to accurately position the battery stack pressing part 22.

[0040] In summary, the stack pressing device suitable for the fuel cell stack provided in the present embodiment can prevent the fuel cell stack 4 from tipping over or unstable support by performing bottom support and circumferential limitation on the fuel cell stack 4 through the electric push positioning assembly 1; the top pressing of the fuel cell stack 4 on the electric push positioning assembly 1 can further limit the stability of the fuel cell stack 4 without manual assistance for straightening, thereby preventing the fuel cell stack 4 from tilting, resulting in poor consistency and unguaranteed quality of the products bundled with steel strips, and solving the problem that manual assistance is needed for straightening of the existing steel strips during bundling of the stack, resulting in low production efficiency and poor product consistency due to manual operation.

[0041] Device Example:

[0042] This embodiment also proposes a steel strapping device suitable for a fuel cell stack, on which the stack pressing device is provided. The specific implementation process of the stack pressing device can be found in the above description, and will not be repeated in this embodiment.

[0043] Since the battery stack pressing device has the above-mentioned effects, the steel strip bundling equipment having the battery stack pressing device also has corresponding effects.

[0044] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0045] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A stack pressing device suitable for a fuel cell stack, characterized in that: include: Electric push positioning assembly, used for bottom support and position limiting of fuel cell stack; A top pressing assembly is arranged directly above the electric push positioning assembly and is used to perform top pressing on the fuel cell stack on the electric push positioning assembly; The top pressing assembly comprises: Press-fit support seat; A stack pressing piece is arranged on the pressing support seat in a position-adjustable manner along the height direction, and is used for top pressing the fuel cell stack on the electric push vehicle; A steel belt pressing piece, arranged on the stack pressing piece, for top pressing the steel belt pressed against the top wall of the fuel cell stack; The steel belt pressing piece comprises: A vertical telescopic driving member; the vertical telescopic driving member is vertically arranged in the U-shaped groove structure of the battery stack pressing member to perform vertical telescopic movement; A steel belt pressing body, which is arranged in the U-shaped groove structure in a manner that it can move up and down, and is arranged at the telescopic end of the vertical telescopic driving member, and is used for the steel belt to move downward under the action of the vertical telescopic driving member after the steel belt is horizontally extended along the top wall of the fuel cell stack, until it is pressed and contacted on the top wall of the steel belt, so that the steel belt is pressed and fixed on the top wall of the fuel cell stack; A U-shaped groove structure is provided at the bottom of the stack press piece, the solid part of the stack press piece is used to be pressed on the top wall of the fuel cell stack, and the U-shaped groove structure is used to make way for the steel belt so that the steel belt can extend horizontally along the top wall of the fuel cell stack in the U-shaped groove structure; The steel belt pressing piece is arranged in the U-shaped groove structure to apply a pressing force to the steel belt after the steel belt is horizontally extended along the top wall of the fuel cell stack, so that the steel belt is pressed between the top wall of the fuel cell stack and the steel belt pressing piece; The electric push positioning assembly is a mobile assembly, and the electric push carrier of the electric push positioning assembly is connected to a transverse conveying member, so that the electric push carrier can move transversely under the action of the transverse conveying member, thereby driving the fuel cell stack to move transversely, so that the fuel cell stack can move between the loading position and the bundling position, so as to facilitate the loading, unloading and bundling of the fuel cell stack; The electric push positioning assembly comprises: Electric push carrier; A circumferential limiting member is provided on the electric push carrier, the electric push carrier is used to support the bottom of the fuel cell stack, and the circumferential limiting member is used to limit the circumferential position of the fuel cell stack; The electric push positioning assembly further includes: a carrier support seat for supporting the electric push carrier; the carrier support seat is a sliding support seat for slidingly supporting the electric push carrier; the electric push carrier is connected to a transverse conveying member so that the electric push carrier can move laterally under the action of the transverse conveying member; The electric push positioning assembly moves to the loading and unloading position, and the fuel cell stack to be bundled is installed on the electric push positioning assembly by hoisting, and the fuel cell stack to be bundled is driven by the electric push positioning assembly to move to the bundling position, so that the top is pressed by the top pressing assembly at the bundling position, and the steel belt is bent and welded to complete the bundling of the steel belt; finally, after the top pressing assembly releases the top pressing, the fuel cell stack is driven back to the loading and unloading position by the mobile electric push positioning assembly, and the bundled fuel cell stack is unloaded to carry out the subsequent bundling of the fuel cell stack; A pressing and positioning assembly is also provided between the top pressing assembly and the electric push positioning assembly. The pressing and positioning assembly is arranged between the stack pressing part and the circumferential limit part. The pressing and positioning assembly includes vertical positioning columns corresponding to the circumferential limit parts one by one, and is used to limit the relative position between the top pressing assembly and the electric push positioning assembly when the top pressing assembly performs top pressing on the fuel cell stack, so as to achieve precise positioning of the top pressing assembly.

2. The stack pressing device for a fuel cell stack according to claim 1, characterized in that: The vertical telescopic driving member is a telescopic cylinder.

3. A steel strapping device suitable for a fuel cell stack, characterized in that: A stack pressing device suitable for a fuel cell stack is provided as described in claim 1 or 2.

Images