Electric pile press-fitting correction auxiliary device

Abstract

The utility model relates to an electric pile press-fitting correction auxiliary device, and relates to the technical field of fuel cell electric pile press-fitting, and the electric pile press-fitting correction auxiliary device comprises two supports which are symmetrical in structure and can move relatively to position an electric pile; at least one group of indication mechanisms, each group of indication mechanism comprising an emitter and a receiver which are movably arranged on the two supports respectively, the emitter and the receiver are arranged in an aligned manner, and the emitter is tangent to the upper end surface of the adjacent electric pile; the emitter is used for emitting light so as to indicate the warping position when the upper end face of the electric pile warps. According to the electric pile press-fitting correction auxiliary device, the warped part of the upper end face of the electric pile can be rapidly corrected in an auxiliary mode, accurate press-fitting of the electric pile is achieved, then the efficient, stable and continuous running state of the electric pile is guaranteed, the overall performance and reliability are improved, and the technical problem that in the related technology, when warpage occurs after press-fitting of the electric pile, effective correction cannot be achieved is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cell stack pressing, and particularly relates to an auxiliary device for correcting fuel cell stack pressing. Background Art

[0002] At present, proton exchange membrane fuel cells are the most promising fuel cells for widespread application in the automotive field. Fuel cells are stacked and pressed so that multiple single cells are connected in series to form a fuel cell stack, thereby obtaining high voltage and high power to meet the power requirements of automobiles. Stack pressing is of great significance to the performance of the stack. On the one hand, stack pressing will affect the consistency between fuel cells in the stack. On the other hand, the stack pressing force will significantly affect the ohmic resistance of the fuel cell during operation after pressing. Therefore, ensuring the consistency of fuel cell stack pressing and the proper pressing of the central area are the two major requirements that current stack pressing needs to meet.

[0003] The membrane electrode, which is the main power generation part in the fuel cell, includes a central reaction area and an outer frame. The central reaction area includes carbon paper, a microporous layer, a catalytic layer, and a proton exchange membrane, while the outer frame is only formed by laminating two or more plastic sheets. Therefore, after the stack pressing is completed, the pressing force of the stack is replaced by the bolt force on the stack end plate. Since the central area is thicker than the outer frame, rebound will occur, resulting in the actual compression amount applied to the central reaction area during stack pressing being less than the compression amount of the surrounding frame. The central reaction area warps relative to the outer frames on both sides, and the actual compression amount required for the central reaction area is smaller than the actual compression amount obtained after stack pressing, resulting in the stack performance not meeting expectations.

[0004] In related technologies, an on-line parallelism detection device for a fuel cell press and a stack press are provided. A parallelism detection sensor is installed on a mounting seat to detect the parallelism of the upper end plate of the stack, and when the difference in parallelism detected by two parallelism detection sensors is within a preset range, the stack pressing parallelism is considered qualified.

[0005] However, the above device does not consider the rebound phenomenon caused by the thicker central area relative to the frame when the force of the stack press is withdrawn after the stack is pressed well, resulting in the problem of warping of the electrode plates, and thus cannot solve the warping problem that occurs after stack pressing. Summary of the Utility Model

[0006] The present application provides an auxiliary device for correcting fuel cell stack pressing, which can quickly assist in correcting the warped parts after stack pressing and achieve precise pressing of the stack.

[0007] The auxiliary device for correcting fuel cell stack pressing of the present application includes:

[0008] Two brackets, which are symmetric in structure and can move relative to each other to position the stack;

[0009] At least one set of indicating mechanisms, each set of indicating mechanisms including a transmitter and a receiver respectively movably arranged on two brackets, the above-mentioned transmitter and receiver being arranged in alignment, and the above-mentioned transmitter being tangent to the upper end surface of the adjacent stack;

[0010] The above-mentioned transmitter is used to emit light to indicate the warping position when the upper end surface of the above-mentioned stack warps.

[0011] In some embodiments, each of the above-mentioned brackets includes:

[0012] A supporting base;

[0013] Two sliding rods, the two above-mentioned sliding rods being vertically connected to both ends of the above-mentioned supporting base respectively;

[0014] A cantilever beam, both ends of which are respectively sleeved on a sliding rod and can slide up and down along the above-mentioned sliding rod; the above-mentioned transmitter or receiver is movably installed on the above-mentioned cantilever beam.

[0015] In some embodiments, each of the above-mentioned supporting bases includes a base body and two connecting plates respectively connected to both ends of the base body, and a clamping angle for clamping on the stack is respectively formed between each connecting plate and the above-mentioned base body.

[0016] In some embodiments, the above-mentioned connecting plate is a trapezoidal plate or a triangular plate, and the above-mentioned clamping angle is a right-angle clamping angle.

[0017] In some embodiments, a slide rail is provided on the upper end surface of the above-mentioned cantilever beam, the above-mentioned transmitter and receiver are respectively arranged on a slider, and each of the above-mentioned sliders is slidably arranged on the corresponding slide rail.

[0018] In some embodiments, adjusting buttons are provided at positions corresponding to the two sliding rods on the above-mentioned cantilever beam. When the above-mentioned adjusting buttons are pressed, the above-mentioned cantilever beam can slide up and down along the above-mentioned sliding rod.

[0019] In some embodiments, at least one of the opposite ends of the two above-mentioned cantilever beams is provided with opposite positioning holes for installing a positioning rod.

[0020] In some embodiments, a level is provided on the above-mentioned cantilever beam, and scales are provided on both the above-mentioned cantilever beam and the sliding rod.

[0021] In some embodiments, the above-mentioned sliding rod is a telescopic rod.

[0022] In some embodiments, the above-mentioned indicating mechanism further includes a horn connected to the above-mentioned receiver, and the above-mentioned horn is used to emit an un-warped prompt when the above-mentioned receiver receives the light emitted by the above-mentioned transmitter.

[0023] The beneficial effects brought by the technical solutions provided in the embodiments of the present application include:

[0024] By setting two brackets with symmetrical structures, the stack after press-fitting is fixed between the two brackets, and a transmitter and a receiver are movably arranged on the two brackets respectively. The above-mentioned transmitter and receiver are arranged in alignment, and the transmitter is tangent to the upper end surface of the adjacent stack. By the transmitter emitting light, when the upper end surface of the stack warps, the warping position is indicated, so as to quickly assist in correcting the warped part of the upper end surface of the stack, realizing the precise press-fitting of the stack, and further ensuring the efficient, stable and continuous operation state of the stack, improving the overall performance and reliability, and solving the technical problem that the warping cannot be effectively corrected when the stack is press-fitted in the related technology. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 It is a right-side perspective view of the stack press-fitting and correcting auxiliary device according to the embodiment of the present application;

[0027] Figure 2 It is a left-side perspective view of the stack press-fitting and correcting auxiliary device according to the embodiment of the present application;

[0028] Figure 3 It is an installation schematic diagram for correcting the stack in the embodiment of the present application;

[0029] Figure 4 It is a flowchart of the correction method in the embodiment of the present application.

[0030] In the figure:

[0031] 1. Bracket; 11. Slide bar; 12. Cantilever beam; 121. Slide rail; 122. Adjustment button; 123. Positioning hole; 124. Level gauge; 13. Base body; 14. Connecting plate;

[0032] 2. Stack; 3. Transmitter; 4. Receiver. Detailed Embodiments

[0033] In order to enable those skilled in the art to better understand the solution of the present application, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0034] An embodiment of the present application provides a stack pressing and straightening auxiliary device, which can quickly assist in straightening the warped parts after the stack is pressed, and solve the technical problem that the warped parts cannot be effectively straightened in the related art when the stack is warped after being pressed.

[0035] As Figure 1 and Figure 2 shown, the stack pressing and straightening auxiliary device of the embodiment of the present application includes two brackets 1 and at least one set of indicating mechanisms.

[0036] The structures of the two brackets 1 are symmetrical, and the two brackets 1 can move relative to each other to position the pressed stack 2.

[0037] Each set of indicating mechanisms includes a transmitter 3 and a receiver 4. The transmitter 3 and the receiver 4 are respectively movably arranged on the two brackets 1. The transmitter 3 and the receiver 4 are arranged in alignment, and the transmitter 3 is tangent to the upper end face of the adjacent stack 2.

[0038] The transmitter 3 is used to emit light to indicate the warping position when the upper end face of the stack 2 warps. In this embodiment, the receiver 4 is used to judge whether the upper end face of the stack 2 warps according to whether the light emitted by the transmitter 3 is received.

[0039] In the straightening auxiliary device of this embodiment, by setting two brackets with symmetrical structures to fix the pressed stack between the two brackets, and respectively movably arranging a transmitter and a receiver on the two brackets, and the transmitter and the receiver are arranged in alignment, and the transmitter is tangent to the upper end face of the adjacent stack; by the transmitter emitting light to indicate the warping position when the upper end face of the stack warps, to quickly assist in straightening the warped parts of the upper end face of the stack, realize the precise pressing of the stack, and further ensure the efficient, stable and continuous operating state of the stack, and improve the overall performance and reliability.

[0040] On the basis of the above embodiment, in this embodiment, each of the brackets 1 includes a support base, a sliding rod 11 and a cantilever beam 12.

[0041] There are two sliding rods 11, and the two sliding rods 11 are respectively vertically connected to both ends of the support base.

[0042] Both ends of the cantilever beam 12 are respectively sleeved on a sliding rod 11, and the cantilever beam 12 can slide up and down along the sliding rod 11; the transmitter 3 or the receiver 4 is movably installed on the cantilever beam 12.

[0043] In this embodiment, the above-mentioned transmitter 3 is movably installed on the cantilever beam 12 of a bracket 1, and the above-mentioned receiver 4 is movably installed on the cantilever beam 12 of another bracket 1, so as to judge warping by the signal emission of the transmitter 3 and the signal reception of the receiver 4.

[0044] Further, in one embodiment, each of the above-mentioned support bases includes a base body 13 and two connecting plates 14.

[0045] The two connecting plates 14 are respectively connected to both ends of the base body 13, and a clamping angle for clamping the fuel cell stack 2 is respectively formed between each connecting plate 14 and the base body 13.

[0046] In this embodiment, by connecting two connecting plates to both ends of the base body to form a clamping angle for clamping the fuel cell stack 2, the end plate of the fuel cell stack 2 can be effectively clamped, and the flat and stable positioning of the fuel cell stack 2 can be maintained.

[0047] Further, in one embodiment, the connecting plate 14 is a trapezoidal plate or a triangular plate, and the clamping angle is a right-angle clamping angle.

[0048] In this embodiment, by setting the connecting plate 14 as trapezoidal or triangular, the stability of the support base can be increased.

[0049] Optionally, rubber anti-slip layers are provided on both sides forming the right-angle clamping angle, that is, rubber anti-slip layers are provided on the side walls of the part where the connecting plate 14 and the base body 13 form the clamping angle, so as to further stabilize the fuel cell stack 2 and prevent scratching of the fuel cell stack 2.

[0050] Further, in one embodiment, a slide rail 121 is provided on the upper end surface of the cantilever beam 12, the transmitter 3 and the receiver 4 are respectively arranged on a slider, and each slider is slidably arranged in the corresponding slide rail 121.

[0051] In this embodiment, by providing a slide rail on the cantilever beam 12, it can be ensured that the signal transmitter or the signal receiver can move freely on the cantilever beam 12.

[0052] Preferably, there are multiple groups of indicating mechanisms, that is, there are multiple above-mentioned transmitters 3 and receivers 4, and the transmitters 3 and receivers 4 of each group of indicating mechanisms are arranged in alignment.

[0053] In this embodiment, by providing multiple groups of indicating mechanisms, the efficiency of fuel cell stack warping correction can also be increased.

[0054] Optionally, a positioning structure is further provided on the slider, so as to facilitate the positioning of the transmitter 3 and the receiver 4 after they move in place on the slide rail 121 through the slider.

[0055] Optionally, to improve the correction accuracy of the stack pressing, the shapes of the signal emission holes of the emitter 3 and the signal reception holes of the receiver 4 include, but are not limited to, square holes.

[0056] Further, in one embodiment, adjustment buttons 122 are provided at the positions corresponding to the two sliding rods 11 for each of the above-mentioned cantilever beams 12. When the above-mentioned adjustment button 122 is pressed, the above-mentioned cantilever beam 12 can slide up and down along the above-mentioned sliding rod 11.

[0057] In this embodiment, when the above-mentioned adjustment button 122 is not pressed, the above-mentioned cantilever beam 12 cannot slide along the above-mentioned sliding rod 11 and is locked on the above-mentioned sliding rod 11. Pressing the above-mentioned adjustment button 122 can unlock the above-mentioned cantilever beam 12 and the above-mentioned sliding rod 11.

[0058] In this embodiment, the adjustment buttons 122 located on both sides of the cantilever beam 12 are used to fix and adjust the position of the cantilever beam 12 on the sliding rod 11.

[0059] Preferably, the above-mentioned adjustment button 122 is a push rod with a spring. When pressed, the spring will be compressed and the locking mechanism will be released.

[0060] Optionally, the locking mechanism is a rack and pawl system. Among them, the rack is fixed on the sliding rod 11. When the adjustment button is pressed, the pawl is pushed to disengage from the teeth of the rack. At this time, the position of the cantilever beam can be adjusted as needed. Subsequently, when the adjustment button is released, the pawl returns to the teeth of the rack under the action of the spring force to lock the cantilever beam and prevent it from sliding.

[0061] In other embodiments, the above-mentioned locking mechanism can also be other mutually cooperating unlockable locking mechanisms, which are not limited herein.

[0062] Further, in one embodiment, at least one of the opposite ends of the two above-mentioned cantilever beams 12 is provided with opposite positioning holes 123 for installing a positioning rod.

[0063] In this embodiment, in order to ensure that the signal emission port of the emitter and the signal reception port of the receiver are at the same height, positioning holes 123 are provided on the cantilever beam 12. When a positioning rod is successfully installed in the two opposite positioning holes 123, the emitter and the receiver can be ensured to be at the same height.

[0064] Preferably, the two opposite ends of the two cantilever beams 12 are correspondingly provided with positioning holes 123 to further ensure the horizontality of the cantilever beam 12.

[0065] Further, in one embodiment, a level 124 is provided on the above-mentioned cantilever beam 12.

[0066] In this embodiment, to improve the correction accuracy of the stack pressing, the signal emission port of the transmitter and the signal reception port of the receiver should be in a horizontal state. By installing a level on the cantilever beam 12 where the transmitter and the receiver are installed, it is ensured that the transmitter and the receiver are in a horizontal state through calibration.

[0067] Preferably, a level 124 is provided on the end face of one cantilever beam 12 away from the other cantilever beam 12, so that after the stack 2 is positioned, the level 124 can be observed better.

[0068] Further, in one embodiment, scales are provided on both the above-mentioned cantilever beam 12 and the sliding rod 11.

[0069] Among them, the scale on the sliding rod 11 can be set from bottom to top, and the scale on the cantilever beam 12 can be set from one side to the other along its length direction.

[0070] In this embodiment, by providing a scale on the cantilever beam 12, it is ensured that the horizontal positions of the transmitter and the receiver are flush. By providing a scale on the sliding rod 11, it is convenient to adjust the height of the cantilever beam so that the transmitter and the receiver on it are aligned.

[0071] Further, in one embodiment, the above-mentioned sliding rod 11 is a telescopic rod.

[0072] In this embodiment, to adapt to different stack heights, not only the position of the cantilever beam 12 on the sliding rod 11 is adjustable, but also the length of the sliding rod 11 itself is adjustable.

[0073] Optionally, a scale can also be provided on the above-mentioned sliding rod 11 to assist in ensuring that the horizontal positions of the transmitter and the receiver are flush.

[0074] In this embodiment, the above-mentioned sliding rod 11 includes a sleeve and a telescopic tube sleeved inside the sleeve. One end of the sleeve away from the telescopic tube is connected to the support base, and the cantilever beam 12 is sleeved on the telescopic tube. Optionally, a scale can be provided on the telescopic tube.

[0075] Further, in one embodiment, the above-mentioned indicating mechanism further includes a horn connected to the above-mentioned receiver 4. When the above-mentioned receiver 4 receives the light emitted by the above-mentioned transmitter 3, the above-mentioned horn is used to give a non-warping prompt.

[0076] Preferably, the above-mentioned indicating mechanism further includes an indicator light connected to the above-mentioned receiver 4. When the above-mentioned receiver 4 receives the light emitted by the above-mentioned transmitter 3, the above-mentioned indicator light lights up to give a non-warping prompt.

[0077] In this embodiment, by providing a horn and an indicator light, a sound prompt and a light prompt can be given after the correction is in place, reminding the operator that the correction is over to prevent overcorrection.

[0078] Such asFigure 3 As shown, preferably, the above-mentioned stack pressing and straightening auxiliary device includes two brackets 1 and a set of indicating mechanisms. Each bracket 1 includes a support base, two sliding rods 11 and a cantilever beam 12. The indicating mechanism includes a transmitter 3 for emitting signals and a receiver 4 for receiving signals.

[0079] When using the above device, first place the stack 2 at the end of the pressing process in the middle of the two support bases equipped with sliding rods. Install two movable cantilever beams on the four sliding rods respectively, adjust the direction of the stack so that the long axis direction of the stack is perpendicular to the connection line of the two cantilever beams. Install the signal transmitter on one of the cantilever beams and the signal receiver on the other cantilever beam. The straightening process is carried out on a horizontal ground or tabletop. Adjust the position of the cantilever beam on the sliding rod so that the signal emission port of the signal transmitter on the cantilever beam is facing and parallel to the end plate surface of the adjacent stack 2. Adjust the position of the other cantilever beam so that the signal receiving port of the signal receiver on the cantilever beam is facing and parallel to the end plate surface of the adjacent stack 2. Fix the position of the signal receiver on the cantilever beam and check the position of the signal receiver so that the signal emission port and the signal receiving port are facing each other.

[0080] In this embodiment, due to the warping in the central area of the stack, the two sides of the stack end plate are low and the middle is high, that is, the end face surfaces at both ends of the stack are regarded as being in the same plane. Therefore, the signal emitted by the signal transmitter is blocked by the warping in the central area of the stack, and the signal receiver cannot receive the signal emitted by the signal transmitter. At this time, the signal emission port of the signal transmitter can emit a light beam to indicate the position where the stack end plate is warped. By adjusting the bolts near the position indicated in the central area of the stack, the central area will be gradually recompressed, the warping in the central area will gradually disappear, and the stack end plate surface will gradually become a plane. At this time, the signal emitted by the signal transmitter will no longer be blocked due to the warping in the central area, and the signal receiver will receive the signal, and the straightening after the stack pressing is completed.

[0081] As Figure 4 shown, the straightening process of this embodiment specifically includes:

[0082] S1. Place the pressed stack 2 in the straightening auxiliary device; the entire straightening process is carried out on a horizontal tabletop or ground; the two brackets are respectively located at both ends of the long axis direction of the stack;

[0083] S2. Hold the adjustment buttons on both sides of one cantilever beam and adjust the height of the cantilever beam on the sliding rod so that the signal emission hole of the transmitter on the cantilever beam is tangent to the upper end plate surface of the stack;

[0084] S3. Adjust the height of the other cantilever beam on the sliding rod so that the signal receiving port of the receiver on the cantilever beam is tangent to the upper end plate surface of the stack;

[0085] S4. Check the level on the sides of the two cantilever beams to ensure that the cantilever beams are in a horizontal state, so as to ensure that the signal emission port of the transmitter and the signal reception port of the receiver are both horizontally tangent to the adjacent end face, thereby improving the correction accuracy. To ensure that the two cantilever beams are at the same height and horizontal, positioning rods can also be installed in the positioning holes on both sides of the cantilever beams.

[0086] S5. Move the transmitter to the exact middle in the short-axis direction of the stack, check and adjust its state, and adjust the position according to the scale on the cantilever beam so that the signal emission port of the transmitter and the signal reception port of the receiver are in a facing state.

[0087] Among them, only one method is shown here. The transmitter can correct the stack at any position in the short-axis direction of the stack, including the left side, right side, or exact middle in the short-axis direction of the stack, and the receiver adjusts accordingly following the position of the transmitter.

[0088] S6. According to the warping position indicated by the transmitter, adjust the nuts at the corresponding positions so that the warping in the central area of the stack gradually becomes horizontal until the signal emitted by the signal transmitter is received by the signal receiver. At this time, the signal receiver will emit a sound to indicate the end of this correction.

[0089] Preferably, to improve the correction progress, the above steps S5 - S6 can be repeated by modifying the position of the transmitter on the cantilever beam to perform multi-point horizontal correction on the end face of the stack, ensuring that the entire end face of the stack is in a horizontal state, ensuring that the membrane electrode in the stack is in the designed compression amount or force control state, thereby ensuring the efficient, stable, and continuous operation of the stack under the designed stack compression amount or force control state, and improving the overall performance and reliability.

[0090] The device of this embodiment can effectively solve the problem that the central area of the stack warps due to the springback in the central area after the stack is press-fitted, and further ensure that the central area of the stack can complete the press-fitting strictly in accordance with the designed compression amount or force control standard.

[0091] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" 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 mechanical connection, or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0092] It should be noted that in the present application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0093] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A stack press-fit correction auxiliary device, characterized in that: The device comprises: Two brackets (1) are symmetrical in structure and can move relative to each other to position the battery stack (2); At least one group of indicating mechanisms, each group of indicating mechanisms comprising a transmitter (3) and a receiver (4) movably arranged on two brackets (1), the transmitter (3) and the receiver (4) being arranged in alignment, and the transmitter (3) being tangent to the upper end surface of the adjacent battery stack (2); The emitter (3) is used to emit light to indicate the warping position when warping occurs on the upper end surface of the battery stack (2).

2. The battery stack press-assembly correction auxiliary device according to claim 1, characterized in that: Each of the brackets (1) comprises: Support base; Two sliding rods (11) are provided, and the two sliding rods (11) are respectively vertically connected to two ends of the support base; The two ends of the cantilever beam (12) are respectively sleeved on a sliding rod (11) and can slide up and down along the sliding rod (11); the transmitter (3) or the receiver (4) is movably mounted on the cantilever beam (12).

3. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: Each of the supporting bases comprises a base body (13) and two connecting plates (14) respectively connected to two ends of the base body (13), and a clamping angle for clamping on the battery stack (2) is formed between each connecting plate (14) and the base body (13).

4. The battery stack press-assembly correction auxiliary device according to claim 3, characterized in that: The connecting plate (14) is a trapezoidal plate or a triangular plate, and the clamping angle is a right-angle clamping angle.

5. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: The upper end surface of the cantilever beam (12) is provided with a slide rail (121), the transmitter (3) and the receiver (4) are respectively arranged on a slide block, and each slide block is slidably arranged on a corresponding slide rail (121).

6. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: The cantilever beam (12) is provided with an adjustment button (122) at each position corresponding to the two sliding rods (11); when the adjustment button (122) is pressed, the cantilever beam (12) can slide up and down along the sliding rod (11).

7. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: At least one of the opposite ends of the two cantilever beams (12) is provided with opposite positioning holes (123), and the two opposite positioning holes (123) are used for installing positioning rods.

8. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: The cantilever beam (12) is provided with a level (124), and both the cantilever beam (12) and the sliding rod (11) are provided with scales.

9. The battery stack press-assembly correction auxiliary device according to claim 2, characterized in that: The sliding rod (11) is a telescopic rod.

10. The battery stack press-assembly correction auxiliary device according to claim 1, characterized in that: The indicating mechanism further comprises a speaker connected to the receiver (4), and the speaker is used to issue a non-warping prompt when the receiver (4) receives the light emitted by the transmitter (3).

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