Battery cell heat-conducting glue dosage verification tool and verification method

Abstract

The invention relates to a battery cell heat-conducting glue dosage verification tool and verification method, and the tool comprises a tool body, two ends of which are fixedly connected with a butt joint end used for butt joint with a battery pack box body cross beam; the verification plate is connected to the bottom of the tool body and is movably arranged in a first direction close to or far away from the tool body, and the area of the plate surface, far away from the tool body, of the verification plate is consistent with the bottom area of the battery cell; the driving assembly is connected to the tool body and comprises a driving part and a transmission part, and the driving part is in transmission connection with the verification plate through the transmission part so as to drive the verification plate to be close to or away from the tool body in the first direction through the driving part; and the identification piece is arranged on the tool body and is used for displaying the size of the distance between the verification plate and the tool body. When the tool body is placed in the battery pack box body, the driving assembly is used for adjusting the size of the gap between the verification plate and the cold plate in the battery pack box body, so that the accuracy of glue amount verification through glue coating is ensured, and finally the verification method is ensured to be carried out smoothly.

Description

Technical Field

[0001] The invention relates to the field of battery cell imitation tooling, and in particular to a battery cell thermal conductive adhesive dosage verification tool and a verification method. Background Art

[0002] As the core component of electric vehicles, the temperature and temperature difference of the battery cell affect the life of the battery pack, the endurance and safety of the whole vehicle. At present, the battery cells are mainly divided into square shell cells, soft pack cells and cylindrical cells. Square shell cells mainly use cold plates at the bottom of the battery box for heat dissipation and temperature equalization, and fill the space between the two with thermal conductive glue to reduce thermal resistance.

[0003] When the filling rate of thermal conductive adhesive is too low, there are more adhesive-free areas between the square shell battery cell and the cold plate, and the thermal resistance increases significantly, which affects the heat dissipation in this area, causing the temperature of the square shell battery cell to rise. As the number of charge and discharge cycles increases, the consistency of the square shell battery cells deteriorates, and the battery pack capacity and cycle life decrease. In severe cases, the square shell battery cell will overheat and there will be a risk of thermal runaway, and then heat diffusion will cause combustion and explosion. Using a large amount of thermal conductive adhesive can ensure the filling effect, but it will increase the weight and cost of the battery pack, and reduce the energy density and market competitiveness. Therefore, before packaging the square shell battery cells, it is necessary to use a simulated battery tooling to verify the glue coating process.

[0004] However, after the cold plate is integrated into the box, its contour fluctuates. Since the gap between the bottom of the tooling and the cold plate cannot be adjusted, the tooling may not be able to effectively press against the cold plate when the glue coating verification is performed directly with the tooling, and thus the appropriate amount of glue cannot be successfully verified. Summary of the invention

[0005] The present application provides a battery core thermal conductive adhesive dosage verification tool and verification method to solve the technical problems existing in the above-mentioned related technologies.

[0006] In a first aspect, the present application provides a tool for verifying the amount of thermal conductive adhesive used in a battery cell, which adopts the following technical solution:

[0007] A battery core thermal conductive adhesive dosage verification tool, comprising:

[0008] The tooling body has two ends fixedly connected with docking ends for docking with the crossbeams of the battery pack box;

[0009] A verification board, which is connected to the bottom of the tool body and is movably arranged in a first direction close to or away from the tool body, and the board area away from the tool body is consistent with the bottom area of ​​the battery cell;

[0010] a driving assembly connected to the tool body, comprising a driving part and a transmission part, wherein the driving part is connected to the verification plate through the transmission part, so as to drive the verification plate to approach or move away from the tool body in the first direction through the driving part;

[0011] An identification piece is arranged on the tool body to display the distance between the verification plate and the tool body.

[0012] In combination with the first aspect, in one embodiment, the transmission part includes a distance adjusting plate, the distance adjusting plate is connected to the tooling body and is movably arranged to slide and translate in the first direction, and the distance adjusting plate is fixedly connected to the verification plate;

[0013] The driving part includes a rotating shaft rotatably arranged on the tool body, and an end of the rotating shaft is threadedly connected with the distance adjusting plate, so that when the rotating shaft rotates, the distance adjusting plate is driven to move forward and backward in the first direction.

[0014] In combination with the first aspect, in one embodiment, the transmission part further includes a connecting column, and both ends of the connecting column are respectively fixedly connected to the distance adjusting plate and the verification plate, so as to achieve synchronous movement of the verification plate and the distance adjusting plate in the first direction.

[0015] In combination with the first aspect, in one embodiment, the transmission part also includes a fixed plate and an adjustment plate, and the fixed plate and the adjustment plate are fixedly connected to the bottom surface of the distance adjustment plate in sequence in the first direction, and a step hole is opened on the plate surface of the adjustment plate facing the fixed plate, and the connecting column is a stepped shaft structure that matches the step hole and is fixedly connected to the verification plate after passing through the step hole and the adjustment plate.

[0016] In combination with the first aspect, in one embodiment, the distance adjustment plate and the verification plate are respectively located on opposite sides of the tool body, and an axial hole for the connecting column to pass through along the first direction is opened on the tool body.

[0017] In combination with the first aspect, in one implementation, projections of the drive assembly and the tooling body on the verification plate do not exceed the verification plate.

[0018] In combination with the first aspect, in one embodiment, the identification member is a ruler fixedly connected to one side of the tool body, and the ruler extends along the first direction and extends to one side of the distance adjusting plate to reflect the position of the distance adjusting plate in the first direction.

[0019] In combination with the first aspect, in one embodiment, a connecting beam is provided on a side of the tooling body away from the verification plate, a guide column is fixedly connected to the distance adjustment plate, and the guide column extends along a first direction and slides through the connecting beam.

[0020] In combination with the first aspect, in one embodiment, a docking hole is formed through the docking end, and the docking end is bolted and fixed to a cross beam of the battery pack body through the docking hole.

[0021] In a second aspect, the embodiment of the present application provides a method for verifying the amount of thermal conductive adhesive used in a battery cell, using the following technical solution:

[0022] A method for verifying the amount of thermal conductive adhesive used in a battery cell, comprising the following steps:

[0023] Determine the thickness tolerance of the thermal conductive adhesive based on the structural information of the battery pack and the battery cell;

[0024] Determining the maximum thickness of the thermally conductive adhesive according to the thickness tolerance;

[0025] Determine the amount of thermal conductive adhesive used according to the maximum adhesive thickness;

[0026] Adjust the distance between the verification plate of the battery core thermal conductive adhesive dosage verification tool as described above and the cold plate at the bottom of the battery pack box to the maximum adhesive thickness;

[0027] Apply glue to the battery pack box according to the amount of thermal conductive glue;

[0028] The battery core thermal conductive adhesive dosage verification tool is fixedly assembled on the battery pack box and placed until the thermal conductive adhesive is completely cured;

[0029] Calculate the thermal conductive adhesive filling rate after the thermal conductive adhesive is fully cured;

[0030] If the filling rate of the thermal conductive adhesive does not reach the set filling rate, the battery pack body is re-coated with adhesive after adjusting the amount of the thermal conductive adhesive until the filling rate of the thermal conductive adhesive reaches the set filling rate.

[0031] The beneficial effects brought by the technical solution provided in the embodiments of the present application include:

[0032] By installing a verification plate that can move in a first direction on the tooling body and controlling the position of the verification plate in the first direction through a driving component, when the tooling body is placed in the battery pack case, the driving component can be used to adjust the gap between the verification plate and the cold plate in the battery pack case, thereby ensuring the accuracy of the glue amount for glue coating verification. Finally, when the verification tooling is used to execute the verification method, the verification method can be carried out smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0034] Figure 1 This is a schematic diagram of the structure of the battery core thermal conductive adhesive dosage verification tool provided in this application before being placed in the battery pack box;

[0035] Figure 2 This is a schematic diagram of the structure of the battery core thermal conductive adhesive dosage verification tool provided in this application;

[0036] Figure 3 This is a front view of the battery core thermal conductive adhesive dosage verification tool provided in this application;

[0037] Figure 4 for Figure 3 Schematic diagram of the cross section along line AA.

[0038] In the figure:

[0039] 1. Tool body; 10. Butt end; 100. Butt hole; 11. Connecting beam; 110. Second bolt;

[0040] 2. Verification board;

[0041] 30, distance adjustment plate; 300, third bolt; 31, rotating shaft; 310, first bolt; 32, connecting column; 33, fixing plate; 330, fourth bolt; 34, adjusting plate; 340, step hole; 35, guide column;

[0042] 4. Identification piece; 40. Mounting screws;

[0043] 5. Battery pack box; 50. Cold plate; 51. Box crossbeam; 52. Docking bolts. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] Reference Figure 1-Figure 4 , is a battery core thermal conductive adhesive dosage verification tool, which includes a tool body 1, a verification board 2, a drive component and an identification part 4.

[0046] Among them, refer to Figure 2 The tooling body 1 is a rectangular block structure, and the two ends thereof are fixedly provided with docking ends 10 for docking with the cross beam of the battery pack box 5; specifically, the docking ends 10 are arranged at the two ends of the tooling body 1 in an integrated manner, so that after the tooling body 1 is placed in the battery pack box 5, the docking ends 10 at both ends can be placed on the cross beam of the battery pack box 5. At the same time, in order to enable the tooling body 1 to have a stable assembly relationship with the battery pack box 5 in the subsequent verification method, a docking hole 100 penetrating the docking end 10 is opened on the docking end 10, so that the docking end 10 can be bolted and fixed to the cross beam of the battery pack box 5 through the docking hole 100 and the docking bolt 52 passing through the docking end 10; after the tooling body 1 is assembled in the battery pack box 5 through the docking end 10, a spacing space for the movement of the verification plate 2 is formed between its bottom and the cold plate 50 of the battery box.

[0047] The verification plate 2 is connected to the bottom of the tooling body 1 and is movably arranged in the first direction close to or away from the tooling body 1. At the same time, the plate surface area away from the tooling body 1 is consistent with the bottom area of ​​the battery cell; when the tooling body 1 is placed in the battery pack box 5 through the docking end 10, the verification plate 2 located at the bottom of the tooling body 1 will leave a gap for the thermal conductive adhesive to be applied between the cold plate 50 in the battery pack box 5, and because the verification plate 2 is movably arranged in the first direction, it can form a gap of different spacing with the cold plate 50 when it moves in the first direction. It is worth noting that in different embodiments, the movable arrangement of the verification plate 2 on the tooling body 1 can be different, and this application does not limit it here.

[0048] The driving assembly is connected to the tooling body 1, and includes a driving part and a transmission part. The driving part is connected to the verification plate 2 through the transmission part, so as to drive the verification plate 2 to move closer to or away from the tooling body 1 in the first direction through the driving part; in different embodiments, the driving part and the transmission part can take different forms of structures. For example, in some embodiments, the driving assembly can be composed of a hydraulic cylinder and a transmission rod body connecting the output end of the hydraulic cylinder and the verification plate 2, so that the verification plate 2 is driven by the hydraulic cylinder to move in the first direction; in other embodiments, the driving part in the driving assembly can also be a spiral screw structure, and the transmission part is a connecting rod that cooperates with the spiral screw thread, and the transmission part and the verification plate 2 are driven to move in the first direction by rotating the spiral screw. This application is not limited here.

[0049] The identification member 4 is provided on the tool body 1 to display the distance between the verification plate 2 and the tool body 1. In different embodiments, the identification member 4 may also take different forms. For example, in some embodiments, the identification member 4 may be a photoelectric detection device for detecting the distance between the verification plate 2 and the tool body 1, or a reference object for physical comparison with a scale.

[0050] In this way, by installing a verification plate 2 that can move in a first direction on the tooling body 1, and controlling the position of the verification plate 2 in the first direction through a driving component, when the tooling body 1 is placed in the battery pack case 5, the driving component can be used to adjust the gap size between the verification plate 2 and the cold plate 50 in the battery pack case 5, thereby ensuring the accuracy of the glue amount for glue coating verification, and finally, when the verification tooling is used to execute the verification method, the verification method can be carried out smoothly.

[0051] Further, in some preferred embodiments, referring to Figure 2 The transmission part includes a distance-adjusting plate 30, which is connected to the tooling body 1 and is movable in sliding and translating in the first direction, and the distance-adjusting plate 30 is fixedly connected to the verification plate 2;

[0052] The driving part includes a rotating shaft 31 rotatably arranged on the tool body 1 , and an end of the rotating shaft 31 is threadedly connected with the distance adjusting plate 30 so that when the rotating shaft 31 rotates, the distance adjusting plate 30 is driven to move forward and backward in the first direction.

[0053] Specifically, the rotating shaft 31 is preferably a ball pitch-adjusting screw in this embodiment, and its bottom end is bolted and fixed to the pitch-adjusting plate 30 by a plurality of first bolts 310. In order to enable the pitch-adjusting plate 30 to slide and translate in the first direction when installed on the tooling body 1, a connecting beam 11 is provided on the side of the tooling body 1 away from the verification plate 2, and the pitch-adjusting plate 30 is installed between the connecting beam 11 and the tooling body 1. The two ends of the connecting beam 11 are fixedly connected to the tooling body 1 by second bolts 110. In addition, a guide column 35 is fixedly connected to the pitch-adjusting plate 30, and the guide column 35 extends along the first direction and slides through the connecting beam 11. The movable setting of the pitch-adjusting plate 30 between the connecting beam 11 and the tooling body 1 is realized by the cooperation between the guide column 35 and the connecting beam 11.

[0054] In this arrangement, the driving principle of the spiral screw in the linear direction is utilized to drive the verification plate 2 to move in the first direction. Since the linear motion and the circumferential rotation are proportionally transmitted through the threaded combination during the transmission process, that is, the circumferential rotation of the linear motion corresponding to the rotating shaft 31 is amplified, the movement progress of the verification plate 2 in the linear direction, that is, the movement accuracy of the verification plate 2 in the first direction can be further guaranteed by effectively controlling the accuracy of the rotation angle of the rotating shaft 31, thereby avoiding the problem of difficult to control accuracy when the verification plate 2 is directly driven in the first direction.

[0055] In some embodiments, reference Figure 3 and Figure 4 The transmission part also includes a connecting column 32, and both ends of the connecting column 32 are fixedly connected to the distance adjusting plate 30 and the verification plate 2 respectively, so as to realize the synchronous movement of the verification plate 2 and the distance adjusting plate 30 in the first direction.

[0056] Specifically, refer to Figure 2 and Figure 4 In order to achieve fixed connection between the two ends of the connecting column 32 and the pitch-adjusting plate 30 and the verification plate 2, the transmission part in this embodiment further includes a fixing plate 33 and an adjusting plate 34, and the fixing plate 33 and the adjusting plate 34 are sequentially fixedly connected to the bottom surface of the pitch-adjusting plate 30 in the first direction. The fixing plate 33 and the pitch-adjusting plate 30 are bolted and fixed by a third bolt 300, and the fixing plate 33 and the adjusting plate 34 are bolted and fixed in the first direction by a fourth bolt 330 passing through the two.

[0057] Reference Figure 4 The adjusting plate 34 has a stepped hole 340 on its surface facing the fixed plate 33, and the connecting column 32 is a stepped shaft structure matching the stepped hole 340 and is fixedly connected to the verification plate 2 after passing through the adjusting plate 34 through the stepped hole 340. Finally, when the spacing adjusting plate 30 moves in the first direction, it will drive the fixed plate 33, the adjusting plate 34, the connecting column 32 and the verification plate 2 to move synchronously.

[0058] Furthermore, in some embodiments, the distance-adjusting plate 30 and the verification plate 2 are respectively located on opposite sides of the tool body 1, and the tool body 1 is provided with an axial hole for the connecting column 32 to pass through along the first direction. Moreover, the projections of the driving assembly and the tool body 1 on the verification plate 2 do not exceed the verification plate 2. In this embodiment, the widths of the fixed plate 33, the adjustment plate 34 and the verification plate 2 are consistent and aligned on both sides, and the distance-adjusting plate 30 above the fixed plate 33 is installed within the plate surface of the fixed plate 33.

[0059] This arrangement enables the projection of related structures outside the verification plate 2 in the first direction to be within the verification plate 2, so that when the entire verification tool is placed into the battery pack box 5, the entire tool can be smoothly placed and the position of the verification plate 2 can be adjusted.

[0060] Furthermore, in some embodiments, the identification member 4 is a ruler fixedly connected to one side of the tooling body 1 , and the ruler extends along the first direction and extends to one side of the distance adjusting plate 30 to reflect the position of the distance adjusting plate 30 in the first direction.

[0061] Specifically, the bottom end of the scale serving as the identification member 4 is fixedly mounted on the side wall of the tooling body 1 by means of mounting screws 40, and extends toward one side of the distance adjusting plate 30 in a first direction. In this embodiment, the identification member 4 passes over the fixed plate 33 in this direction, and one side of the fixed plate 33 slides against one side of the identification member 4, and then when the rotating shaft 31 drives the distance adjusting plate 30 and other structures to move, the relative position between the fixed plate 33 and the identification member 4 can be directly reflected by the scale on the identification member 4, that is, the relative position of the verification plate 2 synchronized with the fixed plate 33 can be quickly determined, and finally the gap spacing between the verification plate 2 and the cold plate 50 in the battery pack box 5 can be grasped.

[0062] In a second aspect, the present application provides a method for verifying the amount of thermal conductive adhesive used in a battery cell.

[0063] A method for verifying the amount of thermal conductive adhesive used in a battery cell, comprising the following steps:

[0064] S100, determining a thickness tolerance of the thermal conductive adhesive according to structural information of the battery pack body and the battery cell;

[0065] Specifically, the assembly structure of the battery pack box and the square shell battery cell is analyzed, and the thickness tolerance of the thermal conductive adhesive is calculated according to the dimension chain. 2 +b 2 +c 2 +(d / 2) 2 ]

[0066] Where λ is the thickness tolerance of the thermal conductive adhesive, a is the thickness tolerance of the rivet nut on the battery pack box beam, b is the height tolerance of the battery pack box beam, c is the distance tolerance between the battery module mounting surface and the bottom battery pack box beam (covering the flatness of the bottom surface of the module), and d is the contour of the cold plate inherited from the box.

[0067] S200, determining the maximum adhesive thickness of the thermally conductive adhesive according to the thickness tolerance;

[0068] Specifically, the maximum thickness of the thermal conductive adhesive is calculated as follows: L+λ, where L is the theoretical thickness of the thermal conductive adhesive.

[0069] S300, determining the amount of thermal conductive adhesive according to the maximum adhesive thickness;

[0070] Specifically, calculate the amount of thermal conductive adhesive used: Q = S × (L + λ) × (1 + X), where Q is the amount of thermal conductive adhesive used, S is the thermal conductive adhesive filling area (the projected area of ​​the battery cell on the cold plate), and X is the amount of adhesive overflow (the amount of adhesive outside the required filling area when the cold plate collapses and deforms downward in the first direction and overflows during the fastening of the battery cell).

[0071] S400, adjusting the distance between the verification plate of the battery core thermal conductive adhesive dosage verification tool as described above and the cold plate at the bottom of the battery pack box to the maximum adhesive thickness;

[0072] S500, applying glue to the battery pack box according to the amount of thermal conductive glue used;

[0073] Specifically, glue is applied according to the calculated glue amount, and the overflow glue amount gradually increases from 0.

[0074] S600, fixing and assembling the battery core thermal conductive adhesive dosage verification tool onto the battery pack box, and leaving it in place until the thermal conductive adhesive is completely cured;

[0075] Specifically, the battery cell thermal conductive adhesive dosage verification tool is assembled on the box body, fastened with bolts and rivet nuts, and then placed until the thermal conductive adhesive is completely cured.

[0076] S700, calculating the filling rate of the thermal conductive adhesive after the thermal conductive adhesive is completely cured;

[0077] S800: If the filling rate of the thermal conductive adhesive does not reach the set filling rate, re-apply adhesive to the battery pack body after adjusting the amount of the thermal conductive adhesive until the filling rate of the thermal conductive adhesive reaches the set filling rate.

[0078] Specifically, remove the tooling to calculate the filling rate of the thermal conductive adhesive. When the filling rate is not less than the set filling rate Y, the verification is completed. When the filling rate is less than Y, gradually increase the amount of overflow glue and continue the verification until the filling rate meets the requirements. The verification is completed, where Y is determined based on the filling rate indicator required by the customer.

[0079] Where, filling rate K = actual filling area S1 / theoretical filling area S×1 0 0%

[0080] Ultimately, by linking the verification method to the product design, the accuracy of the glue amount in the glue coating verification is guaranteed, and the coverage of the thermal conductive adhesive after the square shell battery cell and the box are assembled is guaranteed, avoiding the risk of performance degradation due to insufficient glue and increased costs due to glue overflow.

[0081] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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, and therefore cannot be understood as a limitation on the present application. 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 mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the 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 the specific circumstances.

[0082] It should be noted that, in this 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0083] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent 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 the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A battery core thermal conductive adhesive dosage verification tool, characterized in that: It includes: A tool body (1) having two ends fixedly connected with docking ends (10) for docking with a crossbeam of a battery pack box (5); A verification board (2) connected to the bottom of the tool body (1) and movably arranged in a first direction close to or away from the tool body (1), and the board surface area away from the tool body (1) is consistent with the bottom area of ​​the battery cell; a driving assembly connected to the tool body (1), comprising a driving portion and a transmission portion, wherein the driving portion is in transmission connection with the verification plate (2) via the transmission portion, so as to drive the verification plate (2) to move closer to or away from the tool body (1) in the first direction via the driving portion; An identification piece (4) is provided on the tool body (1) and is used to display the distance between the verification plate (2) and the tool body (1).

2. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 1, characterized in that: The transmission part comprises a distance adjusting plate (30), the distance adjusting plate (30) is connected to the tooling body (1) and is movably arranged to slide and translate in the first direction, and the distance adjusting plate (30) is fixedly connected to the verification plate (2); The driving part comprises a rotating shaft (31) rotatably arranged on the tool body (1), and an end of the rotating shaft (31) is threadedly connected to the distance adjusting plate (30), so that when the rotating shaft (31) rotates, it drives the distance adjusting plate (30) to move forward and backward in the first direction.

3. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 2, characterized in that: The transmission part further comprises a connecting column (32), the two ends of which are respectively fixedly connected to the distance adjusting plate (30) and the verification plate (2), so as to achieve synchronous movement of the verification plate (2) and the distance adjusting plate (30) in the first direction.

4. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 3, characterized in that: The transmission part also includes a fixed plate (33) and an adjusting plate (34), wherein the fixed plate (33) and the adjusting plate (34) are fixedly connected to the bottom surface of the distance adjusting plate (30) in sequence in the first direction, and a step hole (340) is provided on the plate surface of the adjusting plate (34) facing the fixed plate (33), and the connecting column (32) is a stepped shaft structure matching the step hole (340) and passes through the step hole (340) and then passes through the adjusting plate (34) to be fixedly connected to the verification plate (2).

5. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 3, characterized in that: The distance adjusting plate (30) and the verification plate (2) are respectively located on opposite sides of the tooling body (1), and the tooling body (1) is provided with an axial hole for the connecting column (32) to pass through along the first direction.

6. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 5, characterized in that: The projections of the drive assembly and the tool body (1) on the verification plate (2) do not extend beyond the verification plate (2).

7. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 2, characterized in that: The identification member (4) is a ruler fixedly connected to one side of the tool body (1), and the ruler extends along the first direction and extends to one side of the distance adjusting plate (30) to reflect the position of the distance adjusting plate (30) in the first direction.

8. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 2, characterized in that: A connecting crossbeam (11) is provided on a side of the tool body (1) away from the verification plate (2), and a guide column (35) is fixedly connected to the distance adjustment plate (30), and the guide column (35) extends along a first direction and slides through the connecting crossbeam (11).

9. The battery core thermal conductive adhesive dosage verification tool as claimed in claim 1, characterized in that: A docking hole (100) is formed through the docking end (10), and the docking end (10) is bolted and fixed to a crossbeam of a battery pack box (5) through the docking hole (100).

10. A method for verifying the amount of thermal conductive adhesive used in a battery cell, characterized in that: It includes the following steps: Determining the thickness tolerance of the thermal conductive adhesive according to the structural information of the battery pack box (5) and the battery core; Determining the maximum thickness of the thermally conductive adhesive according to the thickness tolerance; Determine the amount of thermal conductive adhesive used according to the maximum adhesive thickness; Adjusting the distance between the verification plate (2) of the battery core thermal conductive adhesive dosage verification tool as claimed in claim 1 and the cold plate (50) at the bottom of the battery pack box (5) to the maximum adhesive thickness; Applying glue to the battery pack box (5) according to the amount of the thermal conductive glue; The battery core thermal conductive adhesive dosage verification tool is fixedly assembled on the battery pack box (5) and left in place until the thermal conductive adhesive is completely cured; Calculate the thermal conductive adhesive filling rate after the thermal conductive adhesive is fully cured; If the filling rate of the thermal conductive adhesive does not reach the set filling rate, the battery pack box (5) is re-coated with adhesive after adjusting the amount of the thermal conductive adhesive until the filling rate of the thermal conductive adhesive reaches the set filling rate.

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