Collecting plate, battery module and battery pack

Abstract

The utility model discloses a kind of collection plate, battery module and battery pack, wherein, collection plate, comprising: bottom supporting plate, is equipped with a plurality of for battery pole post's through hole;Multiple first series connection plate, multiple first series connection plate are respectively equipped with observation hole, each first series connection plate is connected on bottom supporting plate by fastener, and each observation hole is located above corresponding through hole, fastener includes locking state and unlocking state;Wherein, under locking state, fastener and first series connection plate are fixed relative to bottom supporting plate position, under unlocking state, along bottom supporting plate length direction, fastener and first series connection plate can be moved relative to bottom supporting plate, fastener is configured as allowing it to slide on bottom supporting plate and lock in target position. Thus, the misplacement problem of observation hole and positioning hole caused by installation error or production deviation can be effectively eliminated, the welding quality risk caused thereby is avoided, so as to significantly improve production yield, guarantee the safety of product.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a data acquisition board, a battery module, and a battery pack. Background Technology

[0002] Currently, in the assembly process of square aluminum-cased power battery modules, after stacking multiple individual cells, series plates are typically welded onto the battery terminals to achieve electrical connections between the cells. To facilitate welding positioning and quality inspection, positioning holes are pre-set on the terminals, while observation holes are specifically provided at corresponding positions on the series plates. To further improve integration and assembly efficiency, the industry commonly adopts a method of integrating multiple series plates, data acquisition lines, and structural components into a single unit, forming a CCS (Cells Contact System) assembly. This assembly is installed on top of the battery stack, relying on a pre-positioning structure to achieve initial precise alignment between the series plates and the terminals.

[0003] However, thickness manufacturing tolerances are unavoidable during the production of individual cells; and cumulative assembly errors are inevitably introduced during module stacking and CCS installation. The combined effect of these factors causes a significant misalignment between the observation holes on the CCS and the positioning holes on the battery terminals at the actual welding station. This misalignment can, at best, interfere with welding positioning and affect welding accuracy; at worst, it can cause the positioning holes to completely deviate from the field of view of the observation holes, making normal and effective welding impossible.

[0004] The resulting welding quality risks are significant, easily leading to a series of serious defects such as burn-through, incomplete welds, and weld leaks. These defects not only directly affect the electrical conductivity and mechanical strength of the module, but more seriously, they also harbor safety risks such as thermal runaway, greatly restricting the improvement of production yield and the guarantee of product safety. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, one objective of this utility model is to provide a data acquisition board, battery module, and battery pack that can effectively eliminate the misalignment problem between the observation hole and the positioning hole caused by installation errors or production deviations, avoid the welding quality risks caused by this, thereby significantly improving production yield and ensuring product safety.

[0007] To achieve the above objectives, the first aspect of this utility model provides a data acquisition plate, comprising: a bottom support plate having multiple through holes for battery terminals to pass through; multiple first series plates, each having an observation hole, each first series plate being connected to the bottom support plate by a fastener, and each observation hole being located above the corresponding through hole; the fastener having a locked state and an unlocked state; wherein, in the locked state, the fastener and the first series plates are fixed in position relative to the bottom support plate; in the unlocked state, the fastener and the first series plates are movable relative to the bottom support plate along the length direction of the bottom support plate; the fastener is configured to allow it to slide on the bottom support plate and lock at a target position.

[0008] In addition, the acquisition board proposed in the application may also have the following additional technical features: Specifically, the bottom support plate is provided with a plurality of adjustment holes, and the first series plate is provided with at least two light holes, the adjustment holes extending along the length direction of the bottom support plate; One end of the fastener passes through the light hole and the corresponding adjustment hole in sequence, and is detachably connected to the bottom support plate.

[0009] Specifically, the fastener includes a mandrel and a rivet body, wherein; One end of the rivet body is provided with a brim, and the brim is provided with a through hole that passes through the rivet body along the axial direction of the rivet body; the other end of the rivet body is provided with a plurality of limiting parts that can open and close along the radial direction of the rivet body; the mandrel is inserted into the through hole and can move axially relative to the through hole. In the locked state, one end of the mandrel abuts against the brim, and the other end of the mandrel is exposed in the through hole. The brim abuts against the first connecting plate, and the rivet body is supported and restrained by the mandrel against the bottom support plate. In the unlocked state, one end of the mandrel is away from the brim, and the other end of the mandrel is located above the limiting part. The limiting part is away from the bottom support plate, and the rivet body can move along the adjustment hole.

[0010] Specifically, the plurality of first series plates are arranged in two rows, and the plurality of first series plates in one row are staggered with the plurality of first series plates in the other row in the width direction of the bottom support plate.

[0011] Specifically, it also includes two second series plates, which are arranged in a row and are arranged side by side with the corresponding first series plates. The observation holes are opened on the second series plates, and the observation holes are all located above the corresponding through holes. The second series plates are fixed on the bottom support plate. The second series plate is located at or near the middle position of a plurality of first series plates arranged in a single row.

[0012] Specifically, the bottom support plate has multiple fixing holes, and the second series plate has multiple optical holes. The diameter of the fixing holes is adapted to the diameter of the rivet body. One end of the fastener passes through the optical holes and the corresponding fixing holes in sequence, and is detachably fixed to the bottom support plate.

[0013] Specifically, both the first and second series plates are provided with buffer bends.

[0014] Specifically, the first series plate has multiple pressure relief holes.

[0015] The second aspect of this utility model provides a battery module, including the acquisition board described in the first aspect and a plurality of batteries, wherein the terminals of the plurality of batteries are respectively inserted through the corresponding through holes and connected to the first series plate and the second series plate, and the terminals are provided with positioning holes, and the positioning holes and the corresponding observation holes are located on the same axis.

[0016] The third aspect of this utility model provides a battery pack, including the battery module described in the second aspect.

[0017] The technical solution provided by this utility model embodiment has the following advantages compared with the prior art: (1) The fastener is in the unlocked state. In this state, both the fastener and the first series plate can move freely along the length of the bottom support plate, thereby changing the position of the observation hole. Continue to adjust until the position of the observation hole coincides with the position of the positioning hole, and then control the fastener to lock at the target position, thereby ensuring that the position of the observation hole relative to the positioning hole is locked. This precise position adjustment creates good conditions for the subsequent welding operation of the first series plate and the battery terminal, effectively eliminating the problem of misalignment between the observation hole and the positioning hole caused by installation errors or production deviations, avoiding the welding quality risks caused by this, thereby significantly improving the production yield and ensuring the safety of the product.

[0018] (2) A second series plate is set as a reference positioning plate, located in the middle or near the middle of the single row of first series plates, so that the first series plates can be arranged in an orderly manner on both sides with the second series plate as the central reference. Compared with the existing technology of arranging and distributing from one end, this layout method has significant advantages, which can greatly reduce the cumulative error, achieve the accuracy effect of halving the error, and further improve the efficiency of welding the first and second series plates with the pole post.

[0019] (3) The structure of this utility model is compact and does not require additional complex mechanisms. By optimizing the bottom tray hole design and selecting specific fasteners, it can achieve the integrated function of the acquisition board while improving the production yield. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a data acquisition board according to an embodiment of the present invention; Figure 2 According to one embodiment of the present utility model Figure 1 An enlarged structural diagram of region A in the middle; Figure 3 This is a schematic diagram of the structure of the bottom support plate according to an embodiment of the present invention; Figure 4 According to one embodiment of the present utility model Figure 2 An enlarged structural diagram of region B in the middle; Figure 5 This is a schematic diagram of the structure of a fastener according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the fastener connection of the first tandem plate on the bottom support plate according to an embodiment of the present invention; Figure 7 This is a top view of a fastener and adjustment hole according to an embodiment of the present invention; Figure 8 This is a schematic diagram of a battery module without a data acquisition board according to an embodiment of the present invention.

[0023] As shown in the figure: 1. Bottom support plate; 10. Through hole; 11. Adjustment hole; 12. Fixing hole; 13. Pressure relief hole; 2. First series plate; 20. Observation hole; 21. Buffer bend; 22. Positive series plate; 23. Negative series plate; 3. Fastener; 30. Mandrel; 31. Rivet body; 310. Limiting part; 311. Cap brim; 4. Second series plate; 5. Data acquisition harness; 50. Voltage acquisition point; 51. Temperature acquisition point; 6. Low-voltage connectors; 100. Data Acquisition Board; 1000, Battery module; 1001, Positioning hole; 1002, Pressure relief valve. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0026] The acquisition board, battery module, and battery pack of this utility model embodiment are described below with reference to the accompanying drawings.

[0027] like Figures 1-7 As shown, the acquisition board 100 of the first aspect embodiment of the present invention may include a bottom support plate 1, a plurality of first serial plates 2 and a plurality of fasteners 3.

[0028] The bottom support plate 1 has multiple through holes 10 for the battery terminals to pass through, so that the battery terminals can pass through the through holes 10 and contact the first series plate 2, thereby facilitating subsequent connection by welding. The bottom support plate 1, as a load-bearing component, is made of non-metallic material to ensure electrical safety and insulation. It can be an injection molded part, a sheet such as epoxy board or nylon board, or a thin sheet such as PP (Polypropylene) sheet, PC (Polycarbonate) sheet, PI (Polyimide) sheet, etc. Based on comprehensive considerations such as insulation performance, cost and lightweight, this embodiment uses a 0.5mm thick PC sheet.

[0029] Multiple first series plates 2 are provided with observation holes 20. Each first series plate 2 is connected to the bottom support plate 1 by fasteners 3, and each observation hole 20 is located above the corresponding through hole 10. It can be understood that since the observation hole 20 is located on the through hole 10, it means that the observation hole 20 is located above the battery terminal. The observation hole 20 is used to observe the position of the positioning hole 1001 on the terminal when the first series plate 2 is welded to the battery terminal, to confirm the size and position before welding. Welding is allowed only when the observation hole 20 coincides with the positioning hole 1001 of the terminal.

[0030] It should be noted that the first series plate 2 has a positive series plate 22 and a negative series plate 23, and the positive series plate 22 and the negative series plate 23 are located on both sides of the bottom support plate 1 and are not in the same row, so as to facilitate the output voltage after welding with the battery terminals. In addition, the first series plate 2 is made of aluminum alloy.

[0031] The fastener 3 includes a locked state and an unlocked state. In the locked state, the fastener 3 and the first series plate 2 are fixed relative to the bottom support plate 1. In the unlocked state, the fastener 3 and the first series plate 2 can move relative to the bottom support plate 1 along the length direction of the bottom support plate 1. The fastener 3 is configured to allow it to slide on the bottom support plate 1 and lock at a target position, where the target position is the position where the observation hole 20 coincides with the positioning hole 1001.

[0032] Specifically, the operation steps for establishing a connection between the acquisition board and the battery terminals are as follows: First, arrange the battery terminals in a predetermined order and ensure that they pass precisely through the corresponding through holes 10; then, accurately lay multiple first series plates 2 at the corresponding positions preset on the bottom support plate 1, and then use fasteners 3 to firmly fix the first series plates 2 to the bottom support plate 1.

[0033] When the position of the first series plate 2 may need to be adjusted later, the fastener 3 can be unlocked. In this state, both the fastener 3 and the first series plate 2 can move freely along the length of the bottom support plate 1, thereby changing the position of the observation hole 20. This adjustment continues until the position of the observation hole 20 coincides with the position of the positioning hole 1001. Then, the fastener 3 is locked at the target position, ensuring that the observation hole 20 is locked relative to the positioning hole 1001. This precise position adjustment creates favorable conditions for the subsequent welding operation of the first series plate 2 and the battery terminal, effectively eliminating the misalignment problem between the observation hole 20 and the positioning hole 1001 caused by installation errors or production deviations, avoiding welding quality risks, significantly improving production yield, and ensuring product safety. To ensure the stability of the first series plate 2 during the welding process and prevent rotation due to a single fastener 3, at least two fasteners 3 are used.

[0034] In addition, it should be noted that, referring to Figure 1The acquisition board 100 is fixed with an acquisition harness 5 by cable ties. The acquisition harness 5 is connected to a low-voltage plug-in 6, multiple voltage acquisition points 50 and multiple temperature acquisition points 51. The voltage acquisition points 50 and temperature acquisition points 51 are respectively connected to the first series board 2 at the corresponding positions to acquire the voltage and temperature data of the battery. The information is transmitted to the low-voltage plug-in 6 through the acquisition harness 5. The low-voltage plug-in 6 is used to output information to the outside. This part is existing technology and will not be described in detail here.

[0035] In one embodiment of this utility model, such as Figure 2 , Figure 3 and Figure 4 As shown, the bottom support plate 1 has multiple adjustment holes 11, and the first series plate 2 has at least two light holes (not shown in the figure). The adjustment holes 11 extend along the length direction of the bottom support plate 1. One end of the fastener 3 passes through the light hole and the corresponding adjustment hole 11 in sequence and is detachably connected to the bottom support plate 1. The adjustment hole 11 can be a rectangular hole or an oblong hole, preferably an oblong hole. The length of the adjustment hole 11 is greater than the diameter of the fastener 3, and its width can be adapted to the diameter of the fastener 3 so that the fastener 3 can move along the direction of the adjustment hole 11.

[0036] Specifically, when fixing the first connecting plate 2 to the bottom support plate 1, the operator needs to precisely pass one end of the fastener 3 through the light hole on the first connecting plate 2 and the corresponding adjustment hole 11 on the bottom support plate 1. Then, the fastener 3 is locked, in which case the first connecting plate 2 can be securely fixed to the bottom support plate 1. This fixing method is simple and convenient. When the position of the first connecting plate 2 needs to be adjusted due to actual requirements, the fastener 3 only needs to be adjusted to the unlocked state. At this time, the fastener 3 can move freely in the length direction of the adjustment hole 11, thereby realizing the flexible adjustment of the position of the first connecting plate 2, and thus realizing the adjustment of the position of the observation hole 20 relative to the positioning hole 1001.

[0037] In one embodiment of this utility model, such as Figure 2 , Figure 5 , Figure 6 and Figure 7As shown, the fastener 3 includes a mandrel 30 and a rivet body 31. One end of the rivet body 31 is provided with a cap 311, and the cap 311 has a through hole (not shown in the figure) that passes through the rivet body 31 along the axial direction of the rivet body 31. The other end of the rivet body 31 is provided with a plurality of limiting parts 310 that can open and close radially along the rivet body 31. The mandrel 30 is inserted into the through hole and can move axially relative to the through hole. In the locked state, one end of the mandrel 30 abuts against the cap 311, and the other end of the mandrel 30 is exposed in the through hole. The cap 311 abuts against the first connecting plate 2. The rivet body 31 is opened by the mandrel 30 and abuts against and restricts against the bottom support plate 1. In the unlocked state, one end of the mandrel 30 is away from the cap 311, and the other end of the mandrel 30 is located above the limiting part 310. The limiting part 310 is away from the bottom support plate 1, and the rivet body 31 can move along the adjustment hole 11.

[0038] It should be noted that fastener 3 is made of plastic material with excellent toughness, such as polyethylene and polypropylene. This type of material gives fastener 3 unique performance advantages: it is not easy to break when subjected to repeated bending; at the same time, it also has a certain degree of elastic recovery, which allows it to return to its original shape after being deformed by force.

[0039] Specifically, the fastener 3 has two states: a locked state and an unlocked state. During installation, the operator must first pass the rivet 31 through the light hole on the first connecting plate 2 and the corresponding adjustment hole 11 on the bottom support plate 1.

[0040] When the locking state is required, the mandrel 30 is precisely inserted into the through hole of the rivet 31, and then the mandrel 30 is pressed smoothly towards the bottom support plate 1. At this time, the mandrel 30 moves axially within the through hole and gradually expands the multiple limiting parts 310. Under the force of the mandrel 30, these limiting parts 310 fold towards the bottom support plate 1 until one end of the mandrel 30 is tightly against the cap 311, while the other end of the mandrel 30 protrudes outside the through hole. At the same time, the cap 311 is tightly against the first connecting plate 2, and the rivet 31 is fully expanded by the mandrel 30, thus firmly abutting and restricting itself against the lower surface of the bottom support plate 1. At this point, the fastener 3 is in the locked state.

[0041] When it is necessary to adjust the fastener 3 to the unlocked state, it can be operated flexibly in the following two ways. First, by inserting a rocker arm under the spindle 30, the spindle 30 is slowly tilted away from the first connecting plate 2 using the lever principle, at least to a position above the limiting part 310. At this time, the restriction on the opening of the limiting part 310 is released, and the multiple limiting parts 310 spring back and retract towards each other under their own elasticity, and the locking force disappears. In this state, the first connecting plate 2 can move freely along the length direction of the adjusting hole 11 to the target position.

[0042] Secondly, by pressing down smoothly on the rivet 31 and the first series plate 2 locked by it, the bottom end of the mandrel 30 is brought against a fixed reference surface (e.g., the upper surface of the battery). During this process, as the rivet 31 moves downward and the mandrel 30 remains relatively fixed, the mandrel 30 will move upward relative to the downward-moving rivet 31. This movement causes the expansion portion at the bottom of the rivet 31 to contract, and the locking force is released. At this time, the first series plate 2 can also move freely along the length direction of the adjustment hole 11 to the desired position.

[0043] After all adjustments are completed, press the top of the mandrel 30 again to quickly return the fastener 3 to the locked state, firmly fixing the position of the first series plate 2. It is worth mentioning that the fastener 3 not only possesses the aforementioned excellent working performance, but also has many advantages such as light weight, low cost, convenient installation, excellent insulation performance, and corrosion resistance. Furthermore, the structure of this utility model is compact, requiring no additional complex mechanisms. By optimizing the bottom support plate hole design and selecting specific fasteners, it achieves integrated acquisition board functionality while simultaneously improving production yield.

[0044] In one embodiment of this utility model, such as Figure 1 and Figure 4 As shown, multiple first series plates 2 are arranged in two rows. The multiple first series plates 2 in one row and the multiple first series plates 2 in the other row are staggered in the width direction of the bottom support plate 1. It can be understood that since the first series plates 2 are used for electrical connection between batteries, the staggered arrangement of the first series plates 2 in the two rows connects multiple batteries arranged side by side to form a series circuit with no breaks and good contact.

[0045] In one embodiment of this utility model, such as Figure 1 As shown, the acquisition plate 100 of this utility model also includes two second series plates 4, which are arranged in a row and side by side with the corresponding first series plates 2. Each second series plate 4 has an observation hole 20, which is located above the corresponding through hole 10. The second series plates 4 are fixed to the bottom support plate 1. It should be noted that the first series plates 2 and the second series plates 4 are completely identical in terms of structure, dimensions, and function. Specifically, the second series plates 4 are positioned in the middle or near the middle of a single row of multiple first series plates 2. Specifically, when the number of first series plates 2 is even, the second series plate 4 is positioned in the exact middle of the first series plates 2; when the number of first series plates 2 is odd, denoted as M, the second series plate 4 is positioned at the (M+1) / 2th first series plate 2, that is, near the middle.

[0046] In the above design scheme, the second series plate 4 serves as a reference positioning plate, positioned in the middle or near the middle of the single row of first series plates 2. This allows the first series plates 2 to be arranged sequentially to both sides with the second series plate 4 as the central reference. Compared with the existing technology of arranging the plates from one end, this layout has significant advantages, greatly reducing accumulated errors and achieving a precision effect of halving the error. This further improves the efficiency of welding the first series plates 2 and the second series plates 4 to the pole post.

[0047] Specifically, such as Figure 4 As shown, the bottom support plate 1 has multiple fixing holes 12, and the second series plate 4 has multiple light holes. The diameter of the fixing holes 12 is adapted to the diameter of the rivet body 31. One end of the fastener 3 passes through the light hole and the corresponding fixing hole 12 in sequence, and is detachably fixed to the bottom support plate 1. It can be understood that when installing the fastener 3, one end will pass precisely through the light hole on the second series plate 4 and the corresponding fixing hole 12 on the bottom support plate 1 in sequence. Here, the fixing hole 12 can be circular, and the diameter of the fixing hole 12 is perfectly adapted to the diameter of the rivet body 31, and the two fit tightly. After the fastener 3 is installed and the second series plate 4 is firmly fixed to the bottom support plate 1, the position of the second series plate 4 is strictly locked and cannot be adjusted. At this time, a stable and reliable reference positioning point is formed, which provides a crucial reference point for the subsequent orderly arrangement of the first series plate 2. The second series plate 4 is fixed to the bottom support plate 1 by fastening the fastener 3, and the fastening method of the fastener 3 for the first series plate 2 is exactly the same.

[0048] In one embodiment of this utility model, such as Figure 2 As shown, both the first series plate 2 and the second series plate 4 are provided with buffer bends 21. The buffer bends 21 can be U-shaped. When the battery expands, these buffer bends 21 can effectively prevent the solder joints from tearing, thus preventing adverse effects on electrical performance. Specifically, when the battery expands, the buffer bends 21 absorb the mechanical stress generated during the expansion process by utilizing their own deformation characteristics, such as bending or stretching. In this way, mechanical stress is prevented from acting directly on the solder joints, effectively preventing tearing and ensuring stable electrical performance.

[0049] In one embodiment of this utility model, such as Figure 3 As shown, the first series plate 2 has multiple pressure relief holes 13, wherein the shape of the pressure relief hole 13 is exactly the same as the shape of the pressure relief valve 1002 equipped with the individual battery, and each pressure relief hole 13 is arranged corresponding to a pressure relief valve 1002. For example, referring to... Figure 1In this embodiment, the pressure relief valve 1002 of the individual battery is elliptical, and the pressure relief holes 13 are also designed to be elliptical, with their shape and number matching those of the individual batteries. These pressure relief holes 13 are arranged in a neat row horizontally in the middle of the bottom support plate 1. With this design, when the internal pressure of the battery is too high, the pressure relief valve 1002 can release the pressure in a timely manner through the matching pressure relief holes 13, effectively preventing safety accidents such as explosions or fires caused by the accumulation of internal pressure.

[0050] like Figure 8 As shown, a battery module 1000 according to a second aspect embodiment of the present invention includes a data acquisition board 100 and multiple batteries as described in the first aspect. The terminals of the multiple batteries are respectively passed through corresponding through holes 10 and connected to the first series plate 2 and the second series plate 4. The terminals are provided with positioning holes 1001, and the positioning holes 1001 and the corresponding observation holes 20 are located on the same axis. That is, by ensuring that the positioning holes 1001 and the observation holes 20 are on the same axis, the firmness of the welding of the second series plate 4, the first series plate 2 and the battery terminals can be guaranteed, avoiding the welding quality risks caused by this, thereby significantly improving the production yield and ensuring the safety of the product.

[0051] In one embodiment of this utility model, a pressure relief valve 1002 is also provided on the battery to effectively prevent safety accidents such as explosion or fire caused by the accumulation of internal pressure.

[0052] The battery module 1000 provided by this utility model, having the acquisition board 100 of the first aspect embodiment described above, thus possesses all the beneficial effects of the acquisition board 100. The acquisition board 100 has been described in detail above and will not be repeated here.

[0053] A battery pack according to a second aspect of the present invention, wherein the battery module 1000 described in the second aspect is described above.

[0054] The battery pack provided by this utility model, having the battery module 1000 of the second aspect embodiment described above, thus possesses all the beneficial effects of the battery module 1000 described above. The battery module 1000 has been described in detail above and will not be repeated here.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A data acquisition board, characterized in that, include: The bottom support plate has multiple through holes for the battery terminals to pass through. Multiple first series plates are provided, each of which has an observation hole. Each first series plate is connected to the bottom support plate by a fastener, and each observation hole is located above the corresponding through hole. The fastener has a locked state and an unlocked state. In the locked state, the fastener and the first series plate are fixed in position relative to the bottom support plate. In the unlocked state, the fastener and the first series plate are movable relative to the bottom support plate along the length direction of the bottom support plate. The fastener is configured to allow it to slide on the bottom support plate and lock at a target position.

2. The acquisition board according to claim 1, characterized in that, The bottom support plate is provided with a plurality of adjustment holes, and the first series plate is provided with at least two light holes, the adjustment holes extending along the length direction of the bottom support plate; One end of the fastener passes through the light hole and the corresponding adjustment hole in sequence, and is detachably connected to the bottom support plate.

3. The acquisition board according to claim 2, characterized in that, The fastener includes a mandrel and a rivet body, wherein; One end of the rivet body is provided with a brim, and the brim is provided with a through hole that passes through the rivet body along the axial direction of the rivet body; the other end of the rivet body is provided with a plurality of limiting parts that can open and close along the radial direction of the rivet body; the mandrel is inserted into the through hole and can move axially relative to the through hole. In the locked state, one end of the mandrel abuts against the brim, and the other end of the mandrel is exposed in the through hole. The brim abuts against the first connecting plate, and the rivet body is supported and restrained by the mandrel against the bottom support plate. In the unlocked state, one end of the mandrel is away from the brim, and the other end of the mandrel is located above the limiting part. The limiting part is away from the bottom support plate, and the rivet body can move along the adjustment hole.

4. The acquisition board according to claim 3, characterized in that, Multiple first-connected plates are arranged in two rows, with multiple first-connected plates in one row and multiple first-connected plates in the other row being staggered in the width direction of the bottom support plate.

5. The acquisition board according to claim 4, characterized in that, It also includes two second series plates, which are arranged in a row and are arranged side by side with the corresponding first series plates. The second series plates are provided with observation holes, and the observation holes are all located above the corresponding through holes. The second series plates are fixed to the bottom support plate. The second series plate is located at or near the middle position of a plurality of first series plates arranged in a single row.

6. The acquisition board according to claim 5, characterized in that, The bottom support plate has multiple fixing holes, and the second series plate has multiple optical holes. The diameter of the fixing holes is adapted to the diameter of the rivet body. One end of the fastener passes through the optical hole and the corresponding fixing hole in sequence, and is detachably fixed to the bottom support plate.

7. The acquisition board according to claim 6, characterized in that, Both the first and second series plates are provided with buffer bends.

8. The acquisition board according to claim 1, characterized in that, The first series plate has multiple pressure relief holes.

9. A battery module, characterized in that, The device includes a data acquisition board as described in any one of claims 1-8 and a plurality of batteries, wherein the terminals of the plurality of batteries are respectively inserted through the corresponding through holes and connected to the first series plate and the second series plate, and the terminals are provided with positioning holes, and the positioning holes and the corresponding observation holes are located on the same axis.

10. A battery pack, characterized in that, Includes the battery module as described in claim 9.

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