Battery formation fixture

Abstract

The utility model relates to battery formation technical field especially, it relates to a kind of battery formation clamp.It includes support assembly and clamping assembly, wherein clamping assembly is installed to support assembly to be supported by support assembly, clamping assembly includes multiple clamping plates, temperature detection piece and temperature regulating piece, temperature regulating piece is used to adjust clamping plate temperature, each clamping plate is provided with at least two detection holes, and detection hole is evenly arranged in clamping plate, temperature detection piece is used to detect the temperature in detection hole, temperature regulating piece is used to adjust the temperature of clamping plate.Due to detection hole evenly arranged on clamping plate, so temperature detection piece can detect the temperature everywhere of clamping plate, to determine whether the temperature everywhere of clamping plate is consistent, temperature regulating piece is used to adjust the temperature of clamping plate, temperature regulating piece and temperature detection piece both work together to make the temperature everywhere of battery consistent in formation process, improve the performance and quality of battery after formation.

Description

Technical Field

[0001] This utility model relates to the field of battery formation technology, and in particular to a battery formation fixture. Background Technology

[0002] In the field of lithium battery manufacturing, formation is the process of charging a battery with a small current after it has been filled with electrolyte. It includes two stages: pre-formation and main formation. Its purpose is to transform the lithium-ion battery from a "collection of materials" into a stable "electrochemical system," allowing the active materials in the battery to be converted into substances with normal electrochemical function through the first charge, and forming an effective passivation film on the electrodes (mainly the negative electrode). Battery formation is an indispensable process for new energy batteries. The battery needs to be heated during the formation process, resulting in high-temperature formation. However, during the formation process, the electrolyte inside the battery generates a large amount of heat, and the amount of heat generated by the electrolyte varies from cell to cell. This results in different overall battery temperatures, and therefore different formation temperatures. The different formation temperatures of each cell directly lead to different performance characteristics after formation, resulting in variations in the performance and quality of each battery pack after formation.

[0003] Therefore, there is an urgent need for a battery formation fixture to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a battery formation fixture that can keep the temperature consistent on all parts of either side of the battery.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A battery formation fixture is provided, comprising:

[0007] Support components;

[0008] A clamping assembly is installed on the support assembly. The clamping assembly includes multiple clamping plates, a temperature regulating component, and a temperature sensing component. The temperature regulating component is used to adjust the temperature of the clamping plates. Each clamping plate is provided with at least two detection holes, and the detection holes are evenly arranged on the clamping plates. The temperature sensing component is used to detect the temperature inside the detection holes. The temperature regulating component is used to adjust the temperature of the clamping plates.

[0009] This utility model has at least the following beneficial effects:

[0010] The temperature detection element provided in this embodiment is located in each detection hole provided on the clamping plate. Since the detection holes are evenly arranged on the clamping plate, the temperature detection element can detect the temperature at various points on the clamping plate to determine whether the temperature at various points on the clamping plate is consistent. The temperature regulating element is used to regulate the temperature of the clamping plate. The temperature regulating element and the temperature detection element work together to ensure that the temperature at various points on the battery is consistent during the formation process, thereby improving the performance and quality of the battery after formation. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0012] Figure 1 A first sectional view of the clamping plate provided in an embodiment of this utility model;

[0013] Figure 2 A second sectional view of the clamping plate provided in an embodiment of this utility model;

[0014] Figure 3 A third sectional view of the clamping plate provided in an embodiment of this utility model;

[0015] Figure 4 A fourth sectional view of the clamping plate provided in an embodiment of this utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the battery formation fixture provided in an embodiment of the present utility model;

[0017] Figure 6 This is a schematic diagram showing the connection between the clamping plate and the support member provided in an embodiment of the present utility model;

[0018] In the picture:

[0019] 1. Support assembly; 11. Drive component; 12. First guide rod; 13. Extrusion plate; 14. Support frame; 15. Second guide rod; 2. Clamping assembly; 21. Clamping plate; 211. Detection hole; 212. Limiting groove; 213. First guide hole; 214. Temperature regulating channel; 22. Support component; 221. First limiting hole; 23. Limiting pin; 24. Pressure plate; 241. Second limiting hole; 3. Temperature regulating medium circulation pipeline; 31. Inlet pipe; 32. Outlet pipe; 4. Temperature regulating component. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0021] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0024] This invention provides a battery formation fixture capable of temperature regulation, ensuring consistent temperature across all parts of the battery on any side, thereby improving the formation effect.

[0025] like Figure 1 and Figure 5As shown, the battery formation fixture includes a support assembly 1 and a clamping assembly 2, wherein the clamping assembly 2 is mounted on the support assembly 1 and supported by the support assembly 1. The clamping assembly 2 includes multiple clamping plates 21, a temperature regulating component, and a temperature sensing component. The temperature regulating component is used to regulate the temperature of the clamping plates 21. Each clamping plate 21 is provided with at least two detection holes 211, and the detection holes 211 are evenly arranged on the clamping plate 21. The temperature sensing component is used to detect the temperature inside the detection holes 211.

[0026] The temperature detection element provided in this embodiment of the utility model is located in each detection hole 211 provided on the clamping plate 21. Since the detection holes 211 are evenly arranged on the clamping plate 21, the temperature detection element can detect the temperature at various points on the clamping plate 21 to determine whether the temperature at various points on the clamping plate 21 is consistent. The temperature regulating element is used to regulate the temperature of the clamping plate 21. The temperature regulating element and the temperature detection element work together to ensure that the temperature at various points on the battery 100 is consistent during the formation process, thereby improving the performance and quality of the battery 100 after formation.

[0027] It should be noted that after obtaining the temperature inside the detection hole 211 through the temperature detection component, the temperature adjustment component is adjusted according to the temperature of each detection hole 211, thereby changing the temperature of each part of the clamping plate 21.

[0028] It should be understood that the battery formation fixture also includes a controller, which is electrically connected to the temperature regulator and temperature sensor.

[0029] A controller is a control device that can process input signals and output control signals.

[0030] The controller can be, but is not limited to, a programmable logic controller (PLC), a single-chip microcomputer, a microcontroller unit (MCU), or a timer program controller (such as a TPC-type timer program controller).

[0031] The temperature regulator and the temperature sensor can be connected by a controller, or they can be directly connected. The temperature of each part of the clamping plate 21 obtained by the temperature sensor can determine whether the temperature of each part of the battery 100 is the same during the battery 100 formation process. The temperature regulator is activated according to the temperature detected by the temperature sensor to raise or lower the temperature of each part of the battery 100.

[0032] The temperature sensing element can be, but is not limited to, a temperature gauge or temperature sensor. The temperature sensing element can detect the temperature of the clamping plate 21. The temperature regulating element can be adjusted based on the detection results of the temperature sensing element.

[0033] The temperature sensor can be fixedly installed in the detection hole 211 to adjust the temperature within the detection hole 211. Alternatively, the temperature sensor can be installed independently of the clamping plate 21, meaning that when temperature detection is required in the detection hole 211, the temperature sensor can be directly inserted into the detection hole 211 for detection.

[0034] The temperature detection device includes multiple temperature detection probes, with one temperature detection probe corresponding to each detection hole 211, thereby enabling multiple detection holes 211 to be detected at the same time, thus improving detection accuracy.

[0035] In some embodiments, the detection hole 211 is a blind hole with one end open and the other end closed, that is, the detection hole 211 is open at one end and closed at the other end. This can prevent air from flowing in the detection hole 211, avoid fluctuations in the data detected by the temperature detection device, reduce external interference when detecting temperature, and improve detection accuracy.

[0036] like Figure 1 As shown, in some embodiments, the depth of the detection hole 211 is h, the detection hole 211 extends along a first direction, and the length of the clamping plate 21 in the first direction is H, wherein h ≥ 80% * H.

[0037] It is understood that the first direction can be the height direction of the clamping plate 21 or the length direction of the clamping plate 21. That is, the detection hole 211 can be set along the length direction of the clamping plate 21 or along the width direction of the clamping plate 21. When the detection hole 211 is set along the length direction of the clamping plate 21, the detection hole 211 is opened on the two smaller side walls of the clamping plate 21. When the detection hole 211 is set along the height direction of the clamping plate 21, the detection hole 211 is set on the top wall of the clamping plate 21.

[0038] Optionally, the depth of the detection hole 211 can be 80%*H, 81%*H, 82%*H, 83%*H, 84%*H, 85%*H, 86%*H, 87%*H, 88%*H, 89%*H, 90%*H, 91%*H, 92%*H, 93%*H, 94%*H, or 95%*H, and is not specifically limited in this embodiment. When the depth of the detection hole 211 is 80%*H, the temperature sensing element extends into the detection hole 211, enabling temperature detection at various points within the detection hole 211. When the depth of the detection hole 211 is 95%*H, the temperature sensing element extends into the detection hole 211, increasing the area of ​​the clamping plate 21 where the temperature is detected and improving detection accuracy.

[0039] like Figure 1 As shown, the first direction is the height direction of the clamping plate 21, and the bottom of the detection hole 211 is set higher than the bottom surface of the clamping plate 21.

[0040] It can be understood that the length extension direction of the detection holes 211 is the same as the height direction of the clamping plate 21, and the detection holes 211 are arranged at intervals in sequence along the second direction, and the second direction is the length direction of the clamping plate 21. The bottom of the detection holes 211 does not penetrate the bottom surface of the clamping plate 21, so as to prevent the air at the bottom of the clamping plate 21 from entering the detection holes 211 to cool the detection holes 211 and affect the temperature control of the clamping plate 21, resulting in the temperature at the bottom of the clamping plate 21 being lower than the temperature in the middle of the clamping plate 21 and causing uneven temperature at各处 of the clamping plate 21.

[0041] Through the above solution, the temperature detection component is detected in each of the detection holes 211 provided in the clamping plate 21. Since the detection holes 211 are evenly arranged on the clamping plate 21 and the bottom of the detection holes 211 does not penetrate the clamping plate 21, there is no air flow from bottom to top in the detection holes 211 during detection, thereby avoiding temperature fluctuations at各处 of the clamping plate 21, making the temperature detected by the temperature detection component more accurate. In this way, the temperature adjustment component can adjust the temperature of the clamping plate 21 based on the temperatures detected at各处, so that the temperatures at各处 of the battery 100 are kept consistent during the formation process, improving the performance and quality of the battery 100 after formation.

[0042] In some embodiments, the temperature adjustment component 4 includes a temperature adjustment medium circulation pipeline, and each clamping plate 21 has a temperature adjustment flow channel 214, and the temperature adjustment flow channel 214 is communicated with the temperature adjustment medium circulation pipeline.

[0043] It can be understood that the temperature adjustment component 44 cools or heats up the clamping plate 21 through the flowing medium. For example, the temperature adjustment medium can be water or ethylene glycol. When it is necessary to cool the clamping plate 21, the clamping plate 21 is cooled by reducing the temperature of the temperature adjustment medium. When it is necessary to heat up the clamping plate 21, the clamping plate 21 is heated up by increasing the temperature of the temperature adjustment medium, thereby playing a role in adjusting the temperature of the clamping plate 21.

[0044] Each clamping plate 21 has a temperature adjustment flow channel 214. When setting the temperature adjustment flow channel 214, it should be avoided to cross with the detection holes 211 to avoid the detection holes 211 and prevent the temperature adjustment flow channel 214 and the detection holes 211 from being communicated, which may affect the circulating flow of the temperature adjustment medium.

[0045] As Figure 2 shown, optionally, the temperature adjustment flow channel 214 is arranged between two adjacent detection holes 211, and the temperature adjustment flow channel 214 is arranged in a "J" shape. In this way, while avoiding the detection holes 211, the temperature adjustment flow channel 214 can also cover the clamping plate 21, so as to improve the accuracy and efficiency of temperature adjustment of the clamping plate 21.

[0046] Of course, in other embodiments, as Figure 3As shown, the temperature regulating channel 214 and the detection hole 211 are arranged at intervals, and the temperature regulating channel 214 is a blind hole. The opening of the temperature regulating channel 214 and the opening of the detection hole 211 are respectively arranged on two mutually opposite side walls.

[0047] Specifically, such as Figure 2 and Figure 3 As shown, the temperature regulating medium circulation pipeline 3 includes an inlet pipe 31 and an outlet pipe 32. One end of the temperature regulating channel 214 is connected to the inlet pipe 31, and the other end of the temperature regulating channel 214 is connected to the outlet pipe 32. The inlet pipe 31 is used to connect to the outlet of an external temperature regulating medium source, and the outlet pipe 32 is used to connect to the inlet of the temperature regulating medium source. One of the two ports of the temperature regulating channel 214 serves as the inlet of the temperature regulating medium, and the other serves as the outlet of the temperature regulating medium. The temperature regulating medium achieves heat transfer within the temperature regulating channel 214, thereby regulating the temperature of the clamping plate 21 to regulate the temperature of the battery 100.

[0048] The temperature-regulating medium circulation pipeline 3 is a component used to transport the temperature-regulating medium. In particular, the interior of the temperature-regulating medium circulation pipeline 3 can guide the flow of the temperature-regulating medium. The temperature-regulating medium circulation pipeline 3 is connected to the temperature regulating flow channel and to an external temperature-regulating medium source. The external temperature-regulating medium source can be, but is not limited to, a fluid pump, a liquid storage tank, etc. The driving force that drives the temperature-regulating medium to flow in the temperature-regulating medium circulation pipeline 3 can come from an external temperature-regulating medium source such as a fluid pump.

[0049] By adopting the above scheme, during the battery 100 formation process, after the temperature of various points on the clamping plate 21 is detected by the temperature detection device, the temperature regulating device 4 can quickly, automatically, and controllably adjust the flow rate of the temperature regulating medium transmitted by the temperature regulating medium circulation pipeline 3. This allows for rapid, reliable, automatic, and controllable adjustment of the temperature of the clamping plate 21, thereby ensuring and improving the temperature control effect of the formation system on the battery 100 during the formation process. This, in turn, improves the formation effect, formation yield, and formation consistency, saves time in the formation process, reduces the formation rework rate, and improves the performance of the battery 100.

[0050] Specifically, the inlet pipe 31 is connected to the outlet of the external temperature-regulating medium source through the first connecting joint, and the outlet pipe 32 is connected to the inlet of the external temperature-regulating medium source through the second connecting joint. Both ends of the first connecting joint are equipped with seals to prevent leakage of the temperature-regulating medium, and both ends of the second connecting joint are equipped with seals to prevent leakage of the temperature-regulating medium.

[0051] In some embodiments, each temperature regulating channel 214 is connected in parallel to the temperature regulating medium circulation pipeline.

[0052] It should be noted that the various temperature regulating channels 214 are arranged in parallel and are all connected to the temperature regulating medium circulation pipeline. Specifically, the temperature regulating medium circulation pipeline includes a main pipeline and multiple first branch pipelines. Each first branch pipeline is connected in parallel to the main pipeline, and each first branch pipeline is connected to each temperature regulating channel 214 in a one-to-one correspondence.

[0053] By adopting the above scheme, each temperature regulating channel 214 can be connected in parallel to the temperature regulating medium circulation pipeline, so that the temperature regulating medium circulation pipeline can simultaneously fill each temperature regulating channel 214 with temperature regulating medium, making the total amount of temperature regulating medium in the temperature regulating channel 214 consistent. Based on this, the consistency of temperature regulation of each clamping plate 21 by the battery 100 tray can be guaranteed and improved, thereby improving the performance of the battery 100.

[0054] In some embodiments, each temperature regulating channel 214 is connected in series to the temperature regulating medium circulation pipeline.

[0055] It should be noted that each temperature regulating channel 214 is connected in series and ultimately connected to the circulating pipeline for the temperature regulating medium. Specifically, the circulating pipeline for the temperature regulating medium includes a main pipeline and multiple second branch pipelines. Adjacent clamping plates 21 are connected through the second branch pipelines, and one clamping plate 21 at the beginning or end of the series connection is connected to the main pipeline through the second branch pipeline.

[0056] By adopting the above scheme, each clamping plate 21 can be connected in series to the temperature regulating medium circulation pipeline, so that the temperature regulating medium circulation pipeline can provide temperature regulating medium to the temperature regulating flow channel 214 of each clamping plate 21, so that the temperature of each clamping plate 21 is consistent, thereby ensuring and improving the formation consistency of each battery 100 on the battery 100 tray, and improving the performance of the battery 100.

[0057] Of course, in other possible implementations, each clamping plate 21 can be connected in a mixed manner to the temperature regulating medium circulation pipeline, where mixed connection means that there are both series and parallel connections.

[0058] like Figure 4 As shown, in some embodiments, the temperature regulating element 4 includes a heating resistor disposed within the clamping plate, and the heating resistor does not contact the detection hole.

[0059] Optionally, the heating resistor is set between two adjacent detection holes 211, and the heating resistor is set in a "U" shape. In this way, the heating resistor can cover the clamping plate 21 while avoiding the detection holes 211, so as to improve the accuracy and efficiency of temperature regulation of the clamping plate 21.

[0060] Of course, in other embodiments, the heating resistors and detection holes are staggered and spaced apart, and the clamping plate 21 is provided with mounting holes for mounting the heating resistors. The openings of the mounting holes and the openings of the detection holes are respectively provided on two mutually opposite sidewalls.

[0061] Furthermore, the resistance of the heating resistor located in the middle of the clamping plate 21 is less than the resistance of the heating resistor located at the edge of the clamping plate 21. Since the heat dissipation effect at both sides of the clamping plate 21 is better than that at the middle position of the clamping plate 21, the temperature at the two edge positions of the clamping plate 21 in the second direction is lower than the temperature at the middle position of the clamping plate 21 in the second direction. Therefore, the resistance of the heating resistor located in the middle of the clamping plate 21 is less than the resistance of the heating resistor at the edge of the clamping plate 21, which can adaptively increase the temperature at the middle position of the clamping plate 21 in the second direction, thereby improving the overall temperature uniformity of the clamping plate 21.

[0062] Continue to refer to Figures 1 to 4 In some embodiments, the clamping plate 21 is provided with a limiting groove 212, which is an elongated groove. The bottom of the limiting groove 212 is provided with a detection hole 211. The end of the support member 22 is provided with a plurality of first limiting holes 221. The clamping assembly 2 also includes a limiting pin 23, the limiting part of which is located in the first limiting hole 221 and the limiting groove 212.

[0063] Understandably, the limiting pin 23 is used to fix the support member 22 on the clamping plate 21. The limiting pin 23 is inserted into the first limiting hole 221 and the limiting groove 212 and stays in the first limiting hole 221 and the limiting groove 212, thereby preventing the support member 22 from slipping off the clamping plate 21 and playing the role of limiting, supporting and fixing the support member 22.

[0064] A single elongated groove can correspond to multiple first limiting holes 221, which makes it easier for the limiting pin 23 to be directly inserted into the first limiting hole 221 and then into the elongated groove, thereby improving the efficiency of assembling the support 22 onto the clamping plate 21.

[0065] It should be noted that there are more than two elongated grooves, so that the groove walls can limit the stroke of the limit pin 23 and prevent the limit pin 23 from sliding along the elongated groove.

[0066] In some embodiments, the limiting pin 23 has at least two limiting portions. It is understood that the two limiting portions are inserted into different first limiting holes 221, thereby fixing the support member 22 at multiple points and preventing the support member 22 from rotating relative to each other under the action of a single limiting portion.

[0067] like Figure 5 and Figure 6 As shown, in some embodiments, the clamping assembly 2 further includes a plurality of support members 22, with a support member 22 provided between each of two adjacent clamping plates 21, and the two ends of the support member 22 being fixedly connected to the two adjacent clamping plates 21 respectively. The support member 22 is used to support the battery 100.

[0068] Understandably, the support member 22 provides support for the battery 100, and both ends of the support member 22 are fixedly connected to the clamping plate 21 to prevent the support member 22 and the clamping plate 21 from separating from each other.

[0069] Optionally, the support member 22 includes a support portion and a connecting portion. The support portion is provided with connecting portions on both sides. The connecting portions are connected to the clamping plate 21. The support portion is used to support the battery 100 and provide support for the battery 100, while the connecting portions are used to connect the support member 22 as a whole to the clamping plate 21.

[0070] For example, the support member 22 includes a support paper, which is folded to obtain a support part and a connecting part, that is, the support member 22 is an integrally formed structure.

[0071] In some embodiments, the clamping assembly 2 further includes a pressure plate 24, which is located on top of the clamping plate 21 to press the end of the support member 22. The pressure plate 24 has a second limiting hole 241, and a first limiting hole 221 is provided in a one-to-one correspondence with the second limiting hole 241. A limiting pin 23 is located in the second limiting hole 241, the first limiting hole 221, and the limiting groove 212.

[0072] Understandably, the pressure plate 24 is used to press and fix the support 22 to prevent the support 22 from slipping off the clamping plate 21. The setting of the pressure plate 24 can increase the contact area between the support 22 and the clamping plate 21 and improve the friction between them, so that the support 22 is more stably fixed to the clamping plate 21.

[0073] In some embodiments, the width of the pressure plate 24 is less than or equal to the thickness of the clamping plate 21.

[0074] It is understandable that the clamping plate 21 has a first limiting hole 221 at its top, and the pressure plate 24 has a second limiting hole 241 that corresponds to the first limiting hole 221. This improves the assembly efficiency of the limiting pin 23. The width of the pressure plate 24 does not exceed the thickness of the clamping plate 21, and the pressure plate 24 will not interfere with the battery 100.

[0075] Continue to refer to Figure 6 The support assembly 1 includes a drive member 11, a first guide rod 12, a pressing plate 13, and a support frame 14. The clamping plate 21 has a first guide hole 213 on each side along its length direction (i.e., the second direction). The first guide rod 12 passes through the first guide hole 213 to provide guidance for the clamping plate 21. The pressing plate 13 is disposed within the area enclosed by the support frame 14. The drive member 11 is fixed to the support frame 14 and fixedly connected to the pressing plate 13. The drive member 11 can drive the pressing plate 13 to move towards the clamping assembly 2 to apply a pressing force to the clamping assembly 2. For example, the drive member 11 is a linear motor.

[0076] In some embodiments, the support assembly 1 includes a second guide rod 15, and a second guide hole may be provided on both sides of the extrusion plate 13 along the second direction. The second guide rod 15 passes through the second guide hole to provide guidance for the extrusion plate 13, so that the extrusion plate 13 moves more stably when it moves toward the clamping plate 21.

[0077] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A battery formation fixture, characterized in that, include: Support component (1); A clamping assembly (2) is installed on the support assembly (1). The clamping assembly (2) includes multiple clamping plates (21), a temperature regulating component, and a temperature detection component. The temperature regulating component is used to regulate the temperature of the clamping plates (21). Each clamping plate (21) is provided with at least two detection holes (211), and the detection holes (211) are evenly arranged on the clamping plates (21). The temperature detection component is used to detect the temperature inside the detection holes (211). The temperature regulating component is used to regulate the temperature of the clamping plates (21).

2. The battery formation fixture according to claim 1, characterized in that, The detection hole (211) is a blind hole with one end open and the other end closed.

3. The battery formation fixture according to claim 2, characterized in that, The depth of the detection hole (211) is h, the detection hole (211) extends along the first direction, and the length of the clamping plate (21) in the first direction is H, wherein h ≥ 80% * H.

4. The battery formation fixture according to claim 3, characterized in that, The first direction is the height direction of the clamping plate (21), and the bottom of the detection hole (211) is set higher than the bottom surface of the clamping plate (21).

5. The battery formation fixture according to any one of claims 1-4, characterized in that, The temperature regulating component includes a temperature regulating medium circulation pipeline, and each clamping plate (21) has a temperature regulating flow channel, which is connected to the temperature regulating medium circulation pipeline.

6. The battery formation fixture according to claim 5, characterized in that, Each of the aforementioned temperature regulating channels is connected in parallel to the temperature regulating medium circulation pipeline; or, Each of the temperature regulating channels is connected in series to the temperature regulating medium circulation pipeline.

7. The battery formation fixture according to any one of claims 1-4, characterized in that, The temperature regulating component includes a heating resistor, which is disposed within the clamping plate.

8. The battery formation fixture according to claim 7, characterized in that, The resistance of the heating resistor located in the middle of the clamping plate is less than the resistance of the heating resistor located at the edge of the clamping plate.

9. The battery formation fixture according to any one of claims 1-4, characterized in that, The clamping assembly (2) further includes a plurality of support members (22), and a support member (22) is provided between each of the two adjacent clamping plates (21), and the two ends of the support member (22) are respectively fixedly connected to the two adjacent clamping plates (21). The support member (22) is used to support the battery (100).

10. The battery formation fixture according to claim 9, characterized in that, The clamping plate (21) is provided with a limiting groove (212), which is an elongated groove. The bottom of the limiting groove (212) is provided with the detection hole (211). The end of the support member (22) is provided with a plurality of first limiting holes (221). The clamping assembly (2) also includes a limiting pin (23), the limiting part of which is located in the first limiting hole (221) and the limiting groove (212).

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