A temperature inspection control system and method for battery coil production

Abstract

The present invention belongs to the technical field of lithium batteries and discloses a temperature inspection control system and method for battery coil production. The system includes a constant temperature room and a stretching device, a temperature control device, a control terminal, a station temperature detector group, a variable temperature detector group and a coil temperature detector group arranged in the constant temperature room. It also includes an inspection display arranged outside the constant temperature room; the control terminal establishes respectively according to the acquired data: the corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the temperature control device; the corresponding relationship between the ambient temperature at the stretching station and the internal temperature of the coil in the stretched state; the inspection display displays the two corresponding relationship information established by the control terminal. By constructing the corresponding relationship between the stretching station and each temperature variable in the constant temperature room through the control system, the relevant temperature variables can be timely adjusted to maintain the uniformity of the ambient temperature at the stretching station when the temperature is abnormal. This is convenient for quickly obtaining the cause of the temperature abnormality during inspection and is also conducive to automatic adjustment of the system.

Description

Technical Field

[0001] The present invention belongs to the technical field of lithium batteries, and in particular relates to a temperature inspection control system and method for battery coil production. Background Art

[0002] Lithium-ion batteries are the epitome of modern high-performance batteries, consisting of four main components: positive electrode material, negative electrode material, coil, and electrolyte. The coil, also known as the separator, is a thin film with a microporous structure and a key internal component with the greatest technical barriers in the lithium-ion battery industry. It serves two purposes in lithium-ion batteries: separating the positive and negative electrodes to prevent short circuits and allowing lithium ions to pass through the micropores to form a charge-discharge circuit.

[0003] During coil production, the cast sheet must be stretched under a specific temperature to create a thin film structure. Temperature uniformity can affect the uniformity of the voids in the stretched film structure. Severe temperature imbalances can also cause the film to soften and tear at excessively high temperatures, or become brittle and shatter at excessively low temperatures. Therefore, the temperature requirements during coil production lie not only in controlling the temperature value but also in maintaining regional temperature stability.

[0004] When producing large quantities of coils, using small or medium-sized stretching equipment that can be equipped with a constant temperature chamber results in cumbersome operation. Furthermore, the inspection of each individual stretching unit's temperature control is laborious, energy-intensive, and detrimental to cost control. Using larger stretching equipment also increases the space required for temperature control. This increased space also increases the number of factors that interfere with temperature control. Existing technologies cannot address the problem of temperature control within such a large space, nor do they offer a method for timely monitoring the temperature control status of the coil stretching process's working area through inspections. Summary of the Invention

[0005] The purpose of the present invention is to provide a temperature inspection and control system for battery coil production to solve the problem that the existing technology cannot conduct targeted inspection and control of the temperature uniformity of the stretching station in a large space.

[0006] The present invention is achieved through the following technical solutions:

[0007] A temperature inspection and control system for battery coil production, comprising a constant temperature chamber and a stretching device, a temperature control device, a control terminal, a station temperature detector group, a variable temperature detector group, and a coil temperature detector group, all of which are arranged in the constant temperature chamber, and also comprising an inspection display arranged outside the constant temperature chamber;

[0008] The control terminal is respectively connected to the stretching device, the temperature control device, the station temperature detector group, the variable temperature detector group, the coil temperature detector group and the inspection display;

[0009] The station temperature detector group is provided corresponding to the stretching station area of ​​the stretching device, and is used to detect the ambient temperature data of the stretching station of the stretching device and upload the data to the control terminal;

[0010] The variable temperature detector group is correspondingly arranged at the temperature control device, for detecting the ambient temperature data at the temperature control device and uploading the data to the control terminal;

[0011] The coil temperature detector group is used to detect the internal temperature data of the coil in the stretched state in the stretching device and upload it to the control terminal;

[0012] The control terminals respectively establish, based on the acquired data:

[0013] The corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the temperature control device;

[0014] The corresponding relationship between the ambient temperature at the stretching station and the internal temperature of the coil in the stretched state;

[0015] The inspection display displays two types of corresponding relationship information established by the control terminal.

[0016] Preferably, the workstation temperature detector group includes several workstation temperature detectors, which are evenly arranged above the stretching stations of the stretching device to detect the ambient temperature data at the stretching stations and upload them to the control terminal. The control terminal establishes a temperature distribution map of the stretching stations by obtaining the temperature data uploaded by the several workstation temperature detectors, and displays it through the inspection display.

[0017] Preferably, the distance data between several workstation temperature detectors and the temperature control device are measured respectively, and a correspondence is established between the temperature data of the corresponding position of the stretching station obtained by any workstation temperature detector, the distance data between the workstation temperature detector and the temperature control device, and the ambient temperature data at the temperature control device.

[0018] Preferably, the distance data between several station temperature detectors and the coil are measured respectively, and a correspondence is established between the temperature data of the corresponding position of the stretching station obtained by any station temperature detector, the distance data between the station temperature detector and the coil, and the internal temperature data of the coil in the stretched state.

[0019] Preferably, it also includes an equipment temperature detector group, which is arranged at the heat dissipation part of the stretching device, and is used to detect the ambient temperature data of the heat dissipation part of the stretching device, and upload it to the control terminal; the control terminal establishes a corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the heat dissipation part of the stretching device, and displays it through the inspection display.

[0020] Preferably, the distance data between several workstation temperature detectors and the heat dissipation part of the stretching device are measured respectively, and a correspondence is established between the temperature data of the corresponding position of the stretching station obtained by any workstation temperature detector, the distance data between the workstation temperature detector and the heat dissipation part of the stretching device, and the ambient temperature data of the heat dissipation part of the stretching device.

[0021] Preferably, the coil temperature detector group includes a coil size detector and a microprocessor, wherein the microprocessor stores a temperature conversion program, and the temperature conversion program is used to convert the change of the coil size into the internal temperature data of the coil in the stretched state.

[0022] Preferably, the temperature control device includes a heating mechanism and a cooling mechanism; the heating mechanism and the cooling mechanism are respectively connected to the control terminal for communication.

[0023] Preferably, the stretching device includes a heat dissipation mechanism, which includes a sealed shell and a ventilation duct. The sealed shell is wrapped around the heat dissipation part of the stretching device, one end of the ventilation duct is connected to the sealed shell, and the other end is connected to the outside of the constant temperature chamber; an electric air pump is provided on the ventilation duct, and the electric air pump is communicatively connected to the control terminal.

[0024] The purpose of the present invention is to provide a temperature inspection and control method for battery coil production to solve the problems that the existing technology cannot timely grasp the temperature control status of the coil stretching station through inspection, and cannot quickly index the cause of temperature abnormality.

[0025] The present invention is achieved through the following technical solutions:

[0026] A battery coil production temperature inspection control method, applicable to the battery coil production temperature inspection control system described in any one of the above solutions, comprises the following steps:

[0027] Step 1: Obtain the actual temperature data of the stretching station by checking the information displayed on the inspection display, and check whether the difference between the actual temperature data of the stretching station and the standard temperature data is within a reasonable error range;

[0028] Step 2: If the actual temperature data of the stretching station is within a reasonable error range, the temperature control processing information of the control terminal is checked through the inspection display and abnormal information is recorded;

[0029] Step 3: If the actual temperature data of the stretching station is not within a reasonable error range, query the ambient temperature data of the temperature control device corresponding to the ambient temperature at the stretching station and the internal temperature data of the coil in the stretched state through the inspection display to find out the cause of the temperature abnormality, and send instructions to the control terminal through the inspection display for manual adjustment.

[0030] The beneficial effects of the present invention are:

[0031] The battery coil production temperature inspection control system and method of the present invention establishes a corresponding relationship between the stretching station and each temperature variable in the constant temperature room through the control system, and can timely adjust the relevant temperature variables to maintain the uniformity of the ambient temperature at the stretching station when a temperature anomaly occurs. In particular, by establishing a temperature distribution map at the stretching station, a corresponding relationship is established between the temperature of each temperature detection point and each temperature variable, solving the problem that it is difficult to individually adjust the temperature of a local area when the temperature distribution is uneven. It is convenient for quickly obtaining the cause of the temperature anomaly during inspections and is also conducive to automatic adjustment of the system. The control method of the present invention can quickly discover the cause of the temperature anomaly and perform manual adjustments during the inspection process through the corresponding relationship between the temperature at the stretching station and each temperature variable, and can also obtain the operating status of each device based on the underlying information records automatically regulated by the system to check for hidden dangers. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of a temperature inspection control system for battery coil production provided in one embodiment of the present invention.

[0033] Figure 2 This is a flowchart of a temperature inspection control system for battery coil production provided in one embodiment of the present invention.

[0034] legend:

[0035] 1 Constant temperature room; 2 Stretching device; 3 Temperature control device; 4 Control terminal; 5 Work station temperature detector group; 6 Variable temperature detector group; 7 Coil temperature detector group; 8 Inspection display; 9 Equipment temperature detector group;

[0036] 21 sealed housing; 22 ventilation duct; 23 electric air pump;

[0037] 31 heating mechanism; 32 cooling mechanism. DETAILED DESCRIPTION

[0038] The present invention will be further described below with reference to the accompanying drawings and examples.

[0039] like Figure 1 and Figure 2 As shown, one embodiment of the present invention provides a battery coil production temperature inspection and control system, including a constant temperature chamber 1, an inspection display 8 arranged outside the constant temperature chamber 1, and a stretching device 2, a temperature control device 3, a control terminal 4, a workstation temperature detector group 5, a variable temperature detector group 6 and a coil temperature detector group 7 arranged in the constant temperature chamber 1.

[0040] The control terminal 4 is connected to the stretching device 2, temperature control device 3, station temperature detector group 5, variable temperature detector group 6, coil temperature detector group 7, and inspection display 8. The station temperature detector group 5, variable temperature detector group 6, and coil temperature detector group 7 are input modules for detecting temperature data at each location. The stretching device 2 and temperature control device 3 are execution modules that perform the stretching process and temperature control functions. The inspection display 8 is the display module. The control terminal 4 is the central processing module. The data acquired by the input module is uploaded to the central processing module, which sends instructions to the execution module and simultaneously sends information to the display module for display.

[0041] The station temperature detector group 5 is provided corresponding to the stretching station of the stretching device 2 , and is used to detect the ambient temperature data at the stretching station and upload the data to the control terminal 4 .

[0042] The variable temperature detector group 6 is arranged at a position corresponding to the temperature control device 3 , and is used to detect the ambient temperature data at the temperature control device 3 and upload the data to the control terminal 4 .

[0043] The coil temperature detector group 7 is arranged at the stretching station, and is used to detect the internal temperature data of the coil in the stretched state and upload the data to the control terminal 4.

[0044] After receiving the three temperature data items, the control terminal 4 establishes a corresponding relationship between the ambient temperature at the temperature control device 3 and the ambient temperature at the stretching station, reflecting the temperature changes at the stretching station when the temperature at the temperature control device 3 changes. It also establishes a corresponding relationship between the internal temperature of the stretched coil and the ambient temperature at the stretching station, reflecting the impact of temperature changes during the stretching process on the ambient temperature at the stretching station.

[0045] By using these two corresponding relationships, when the ambient temperature at the stretching station becomes abnormal, it is possible to quickly determine whether the cause of the temperature anomaly lies with the temperature control device 3 or the stretched web. After determining the cause, the control terminal 4 can send a command to the temperature control device 3 to adjust its temperature. Following this corresponding relationship, the temperature fluctuation range of the temperature control device 3 can be precisely controlled to restore the temperature at the stretching station to a normal range.

[0046] At the same time, the above-mentioned temperature correspondence and the control function of the control terminal 4 are displayed on the inspection display 8, so that the inspection personnel can obtain the temperature status of the stretching station through the inspection display 8 without entering the constant temperature room 1, and can quickly index the cause of the temperature abnormality when the temperature of the stretching station is abnormal, and perform targeted regulation or maintenance.

[0047] In order to monitor the temperature conditions across the entire stretching station, in one embodiment, the station temperature detector group 5 includes several station temperature detectors. These are evenly arranged according to the shape of the stretching station, so that the array distribution area formed by the several station temperature detectors covers the area of ​​the stretching station. The stretching station area is divided into several small areas, each of which corresponds to a station temperature detector for temperature measurement. All station temperature detectors upload the detected temperature data to the control terminal 4, which summarizes the temperature data and, based on the positions of each station temperature detector, can draw an ambient temperature distribution map covering the stretching station. This ambient temperature distribution map is then displayed on the inspection display 8, allowing for intuitive comparison of whether the ambient temperature at the stretching station is uniform. Areas with abnormal temperatures can be promptly detected and temperature control can be performed in these areas to ensure the uniformity of the ambient temperature at the stretching station. This makes the gaps during the coil stretching process more uniform, significantly improves the quality of the finished coil, and significantly reduces the defective product rate.

[0048] Based on the scheme for detecting the temperature of the entire stretching station area and establishing a temperature distribution map in the above embodiment, if the temperature uniformity of the entire stretching station area is to be specifically controlled, based on the natural law that the temperature effect is smaller with greater distance and greater with closer distance, in one embodiment, it is necessary to introduce a distance parameter based on the original temperature correspondence. That is, the distance data between each station temperature detector and the temperature control device 3 is separately measured and added to the correspondence between the temperature data obtained by any station temperature detector and the ambient temperature data at the temperature control device 3. The relationship between the temperature change at the temperature control device 3 and the temperature effect caused by each temperature detection node in the stretching station is obtained. When the temperature distribution map of the stretching station shows that the temperature on the side close to the temperature control device 3 is abnormal, the control terminal 4 can send a command to the temperature control device 3, instructing the temperature control device 3 to change the temperature by a precise value according to the correspondence between temperature and distance, thereby readjusting the temperature of the stretching station to a uniform state across the entire area.

[0049] Based on the above embodiment, factors that may affect the global ambient temperature of the stretching station also include temperature changes caused by the stretched coil itself. To this end, in one embodiment, it is necessary to measure the distance data between each station temperature detector and the coil. Similarly, this distance data is added to the corresponding relationship between the ambient temperature data obtained by any station temperature detector and the temperature change data caused by the coil itself, thereby obtaining the relationship between the impact of the temperature change caused by the coil itself on the ambient temperature at the stretching station. When a temperature anomaly occurs in the area near the coil of the stretching station, the control terminal 4 can adjust the peripheral devices in a targeted manner to coordinate the global temperature uniformity of the stretching station.

[0050] Based on the above embodiment, since the stretching device 2 is entirely located within the constant temperature chamber 1, it also generates a large amount of heat energy during operation. Furthermore, due to the long operating time and heavy load during the batch production of coils, the stretching device 2 generates extremely high temperatures, which can affect the temperature of adjacent stretching stations. Therefore, the heat generated by the heat dissipation components of the stretching device 2 is also considered a factor that influences the temperature uniformity of the stretching stations. In one embodiment, the control system further includes an equipment temperature detector group 9, which includes multiple temperature detectors of various types, each installed at the energy-consuming and heat-generating structures of the stretching device. These temperature detectors are used to detect heat generated at various locations of the stretching device 2 and, combined with the room temperature, convert this heat data into ambient temperature data at each heat-generating structure of the stretching device. This ambient temperature data is uploaded to the control terminal 4, where a corresponding relationship is established between the ambient temperature at the stretching station and the ambient temperature at the heat dissipation components of the stretching device 2, reflecting the impact of the continuous heat generation of the stretching device 2 on the ambient temperature at the stretching station. This corresponding relationship is then transmitted, along with the two aforementioned corresponding relationships, to the inspection display 8 for display.

[0051] Similarly, factors that can affect the overall ambient temperature of the stretching station include the heat dissipation portion of the stretching device 2. To this end, in one embodiment, the distance between each station's temperature detector and the heat dissipation portion of the stretching device 2 is measured, and the distance data obtained from this measurement is added to the corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the heat dissipation portion of the stretching device 2 to obtain a relationship between the effect of heat dissipation from the stretching device 2 on the area of ​​the stretching station near the heat dissipation portion of the stretching device 2.

[0052] Factors that can significantly affect the ambient temperature of the stretching station in the constant temperature chamber 1 include the temperature at the temperature control device 3, the temperature change of the coiled material in the stretched state, and the temperature of the heat dissipation part of the stretching equipment. By establishing a corresponding relationship between the three and the ambient temperature of the stretching station, the cause of the temperature abnormality in the stretching station can be quickly indexed. At the same time, when the temperature of the stretching station is uneven, the corresponding relationship between the temperature and distance between each station temperature detector node and the heat source can be established by introducing a distance parameter, so that the temperature value of one side of the stretching station area can be specifically adjusted by changing the temperature of multiple heat sources, so that the entire stretching station is kept in a uniform temperature environment with a very small error range.

[0053] Based on the above embodiment, in order to regulate the temperature of heat dissipated by the stretching mechanism, in one embodiment, the stretching device 2 includes a heat dissipation mechanism comprising a sealed housing 21 and a ventilation duct 22. The sealed housing 21 surrounds the primary heat-generating structure of the stretching device 2, forming a sealed space. The sealed housing 21 is connected to the exterior of the constant-temperature chamber 1 via the ventilation duct 22, allowing a portion of the heat generated by the stretching device 2 during operation to be released to the exterior of the constant-temperature chamber 1 through the heat dissipation mechanism. To achieve intelligent control of the heat dissipation mechanism, an electric air pump 23 is also installed on the ventilation duct 22 and is communicatively connected to the control terminal 4. The control terminal 4 controls the start and stop of the electric air pump 23, thereby precisely adjusting the effect of the temperature at the heat dissipation point of the stretching device 2 on the ambient temperature at the stretching station when regulating the temperature of the stretching station.

[0054] Since the temperature generated within the stretched coil cannot be measured using a simple temperature measuring device, in one embodiment, the coil temperature detector assembly 7 includes a coil size detector and a microprocessor. The coil size detector optically detects the dimensional changes of the coil during the stretching process. The temperature conversion program stored in the microprocessor then converts the dimensional changes of the coil into internal temperature changes, thereby obtaining internal coil temperature data in the stretched state. Because the process of stretching the cast sheet into a coil requires multiple stretching stages, each stretching stage has a different degree of stretching, and coils with different stretching degrees release different amounts of heat. Therefore, in order to maintain uniform temperature across the stretching station, it is necessary to specifically detect the internal coil temperature data in the stretched state, understand the impact of this temperature data on the ambient temperature at the stretching station, and adapt and control the surrounding devices based on the established corresponding relationships to maintain temperature uniformity across the stretching station.

[0055] Since the temperature control device 3 is the primary output structure for macro-controlling the temperature value within the constant temperature chamber 1, and the temperature within the constant temperature chamber 1 requires the function of adjusting the temperature up and down, in one embodiment, the temperature control device 3 includes a heating mechanism 31 and a cooling mechanism 32, and both the heating mechanism 31 and the cooling mechanism 32 are communicatively connected to the control terminal 4. The control terminal 4 can send instructions to the heating mechanism 31 or the cooling mechanism 32 to increase the output of the heating mechanism 31 to raise the indoor temperature, or to increase the output of the cooling mechanism 32 to lower the indoor temperature. Correspondingly, the variable temperature detector group 6 also includes two temperature detectors, which are respectively matched to the heating mechanism 31 and the cooling mechanism 32. The two temperature detectors detect the ambient temperature at the output ends of the heating mechanism 31 and the cooling mechanism 32, respectively, and upload the detected ambient temperature to the control terminal 4, so that the control terminal 4 can adjust the output power of the heating mechanism 31 or the cooling mechanism 32 through the established corresponding relationship.

[0056] In another embodiment, the present invention further provides a battery coil production temperature inspection control method, which is applicable to the battery coil production temperature inspection control system of any one of the above embodiments, and includes the following steps:

[0057] Step 1: Obtain the actual temperature data of the stretching station by consulting the information displayed on the inspection display 8, and check whether the difference between the actual temperature data of the stretching station and the standard temperature data is within a reasonable error range;

[0058] Step 2: If the actual temperature data of the stretching station is within a reasonable error range, the temperature control processing information of the control terminal 4 is checked through the inspection display 8, and abnormal information is recorded;

[0059] Step 3: If the actual temperature data of the stretching station is not within a reasonable error range, query the ambient temperature data at the temperature control device 3 corresponding to the ambient temperature at the stretching station and the internal temperature data of the coil in the stretched state through the inspection display 8 to find out the cause of the temperature abnormality, and send instructions to the control terminal 4 through the inspection display 8 for manual control.

[0060] The various technical features in the above embodiments can be combined arbitrarily as long as there is no conflict or contradiction between the combinations of features. However, due to space limitations, they are not described one by one.

[0061] The present invention is not limited to the above-mentioned embodiments. If various changes or modifications of the present invention do not depart from the spirit and scope of the present invention, and if these changes and modifications fall within the scope of the claims and equivalent technologies of the present invention, the present invention is also intended to include these changes and modifications.

Claims

1. A battery coil production temperature inspection and control system, characterized by: It includes a constant temperature chamber and a stretching device, a temperature control device, a control terminal, a station temperature detector group, a variable temperature detector group and a coil temperature detector group arranged in the constant temperature chamber, and also includes an inspection display arranged outside the constant temperature chamber; The control terminal is respectively connected to the stretching device, the temperature control device, the station temperature detector group, the variable temperature detector group, the coil temperature detector group and the inspection display; The station temperature detector group is provided corresponding to the stretching station area of ​​the stretching device, and is used to detect the ambient temperature data of the stretching station of the stretching device and upload the data to the control terminal; The variable temperature detector group is correspondingly arranged at the temperature control device, for detecting the ambient temperature data at the temperature control device and uploading the data to the control terminal; The coil temperature detector group is used to detect the internal temperature data of the coil in the stretched state in the stretching device and upload it to the control terminal; The control terminals respectively establish, based on the acquired data: The corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the temperature control device; The corresponding relationship between the ambient temperature at the stretching station and the internal temperature of the coil in the stretched state; The inspection display displays two types of corresponding relationship information established by the control terminal.

2. The battery coil production temperature inspection and control system according to claim 1, characterized in that: The workstation temperature detector group includes several workstation temperature detectors, which are evenly arranged above the stretching stations of the stretching device to detect the ambient temperature data at the stretching stations and upload the data to the control terminal. The control terminal establishes a temperature distribution map of the stretching stations by obtaining the temperature data uploaded by the several workstation temperature detectors and displays it through the inspection display.

3. The battery coil production temperature inspection and control system according to claim 2, characterized in that: The distance data between several workstation temperature detectors and the temperature control device are measured respectively, and a corresponding relationship is established between the temperature data of the corresponding position of the stretching workstation obtained by any workstation temperature detector, the distance data between the workstation temperature detector and the temperature control device, and the ambient temperature data at the temperature control device.

4. The battery coil production temperature inspection and control system according to claim 3, characterized in that: The distance data between several station temperature detectors and the coil are measured respectively, and a corresponding relationship is established between the temperature data of the corresponding position of the stretching station obtained by any station temperature detector, the distance data between the station temperature detector and the coil, and the internal temperature data of the coil in the stretched state.

5. The battery coil production temperature inspection and control system according to claim 4, characterized in that: It also includes an equipment temperature detector group, which is arranged at the heat dissipation part of the stretching device, and is used to detect the ambient temperature data of the heat dissipation part of the stretching device and upload it to the control terminal; the control terminal establishes a corresponding relationship between the ambient temperature at the stretching station and the ambient temperature at the heat dissipation part of the stretching device, and displays it through the inspection display.

6. The battery coil production temperature inspection and control system according to claim 5, characterized in that: The distance data between several workstation temperature detectors and the heat dissipation part of the stretching device are measured respectively, and a correspondence is established between the temperature data of the corresponding position of the stretching station obtained by any workstation temperature detector, the distance data between the workstation temperature detector and the heat dissipation part of the stretching device, and the ambient temperature data of the heat dissipation part of the stretching device.

7. The battery coil production temperature inspection and control system according to claim 1, characterized in that: The coil temperature detector group includes a coil size detector and a microprocessor. The microprocessor stores a temperature conversion program. The temperature conversion program is used to convert changes in coil size into internal temperature data of the coil in a stretched state.

8. The battery coil production temperature inspection and control system according to claim 1, characterized in that: The temperature control device includes a heating mechanism and a cooling mechanism; the heating mechanism and the cooling mechanism are respectively connected to the control terminal for communication.

9. The battery coil production temperature inspection and control system according to claim 1, characterized in that: The stretching device includes a heat dissipation mechanism, which includes a sealed shell and a ventilation duct. The sealed shell is wrapped around the heat dissipation part of the stretching device. One end of the ventilation duct is connected to the sealed shell, and the other end is connected to the outside of the constant temperature chamber. An electric air pump is provided on the ventilation duct, and the electric air pump is communicatively connected to the control terminal.

10. A battery coil production temperature inspection control method, applicable to the battery coil production temperature inspection control system according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Obtain the actual temperature data of the stretching station by checking the information displayed on the inspection display, and check whether the difference between the actual temperature data of the stretching station and the standard temperature data is within a reasonable error range; Step 2: If the actual temperature data of the stretching station is within a reasonable error range, the temperature control processing information of the control terminal is checked through the inspection display and abnormal information is recorded; Step 3: If the actual temperature data of the stretching station is not within a reasonable error range, query the ambient temperature data of the temperature control device corresponding to the ambient temperature at the stretching station and the internal temperature data of the coil in the stretched state through the inspection display to find out the cause of the temperature abnormality, and send instructions to the control terminal through the inspection display for manual adjustment.

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