Energy storage power supply attenuation monitoring equipment

Abstract

The invention relates to the technical field of energy storage power supplies, in particular to energy storage power supply attenuation monitoring equipment, which comprises a base, a bottom groove is formed in the base, a plurality of groups of first push rods are mounted in the bottom groove, the top ends of the first push rods are connected with a power supply main body, mounting frames are fixedly arranged on two side walls of the base, and the mounting frames are connected with an adjustable scanning mechanism. And a cooling mechanism for cooling the power supply main body is arranged on the upper surface of the base. By arranging a monitoring module, an analysis module and a recognition module, the influence of active substances on the battery capacity in the power supply cyclic charging and discharging process is fully considered, the electrochemical performance detection result is corrected according to the change of the mass and spatial distribution of the active substances, and quantitative description of structural form parameters on battery capacity fading is realized. Under the condition that the battery is not damaged, the actual capacity attenuation amount of the battery is accurately, quickly and nondestructively judged from the nature of capacity attenuation.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power supplies, and in particular to an energy storage power supply attenuation monitoring device. Background Art

[0002] An energy storage power supply is a device that can store electrical energy, usually with a large battery capacity and charge and discharge current. It can store electrical energy and release it when needed for use by various devices. Energy storage power supplies are widely used in outdoor camping, new energy vehicle battery charging and other scenarios, mainly used to deal with various emergency situations. The energy storage power supply is mainly composed of a power conversion unit, a power management unit, a power storage unit and a power supply unit. The power conversion unit is responsible for converting external electrical energy into a form of electrical energy suitable for storage; the power management unit is responsible for controlling the storage and release of electrical energy; the power storage unit uses batteries or other energy storage devices to store electrical energy; and the power supply unit provides electrical energy output for use by various devices.

[0003] With the use of energy storage power supply, the capacity of the power supply will decay, which will affect the use of the power supply. In order to ensure the normal operation of production or life, a device that can monitor the energy storage power supply is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide an energy storage power supply attenuation monitoring device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a storage power supply attenuation monitoring device, comprising a base, a bottom groove is arranged on the base, an array of first push rods are installed in the bottom groove, the top of the first push rods is connected to the power supply body, mounting frames are fixedly arranged on the two side walls of the base, the mounting frames are connected to an adjustable scanning mechanism, and a cooling mechanism for cooling the power supply body is arranged on the upper surface of the base.

[0006] Preferably, a docking block is provided at the top of the power supply body.

[0007] Preferably, the scanning mechanism comprises a movable frame, the movable frame is a semicircular arc structure arranged vertically, an upper movable groove is arranged on the inner wall of the movable frame, an arc-shaped rack is arranged on the inner side wall of the upper movable groove, and a limited position sliding groove is arranged on the outer side wall of the movable frame; The scanning mechanism further includes a longitudinal slide rail. A connecting block is provided on one side wall of the longitudinal slide rail. The connecting block extends into the upper movable slot. A clamping block is arranged outside the connecting block. The clamping block is in a "C" shape and covers the movable frame. A limiting slider is arranged on each of the inner walls on both sides of the clamping block. The limiting slider is slidably inserted into the limiting chute. A third adjustment motor is installed inside the connecting block. The output end of the third adjustment motor is connected with a connecting gear. The connecting gear is meshed and connected with the arc-shaped rack. When the third adjustment motor is controlled to start and drive the connecting gear to rotate, the connecting gear rolls on the arc-shaped rack, causing the connecting block to move on the movable frame. A first slider is movably arranged inside the longitudinal slide rail. A first adjustment motor is installed on the top surface of the longitudinal slide rail. The output end of the first adjustment motor is connected with a first lead screw. The first lead screw penetrates through the first slider and is in threaded connection with the threaded hole in the middle of the first slider. Controlling the first adjustment motor to start and drive the first lead screw to rotate can make the first slider move up and down inside the longitudinal slide rail. A transverse slide rail is fixedly connected to one side wall of the first slider. A second slider is slidably arranged inside the transverse slide rail. A second adjustment motor is installed on one end side wall of the transverse slide rail. The output end of the second adjustment motor is connected with a second lead screw. The second lead screw penetrates through the second slider and is in threaded connection with the threaded hole in the middle of the second slider. Controlling the second adjustment motor to start and drive the second lead screw to rotate can make the second slider move horizontally inside the transverse slide rail. A second push rod is arranged on the surface of the second slider. The end of the second push rod is connected with a scanning device.

[0008] Preferably, the movable frame is a horizontally placed circular structure.

[0009] Preferably, the cooling mechanism includes two side plates arranged on the upper surface of the base. The two side plates are respectively located on both sides of the bottom groove. An endothermic cavity is arranged inside the side plates. A coolant storage cavity is arranged inside the base. An overflow hole channel is arranged between the endothermic cavity and the coolant storage cavity for connection. Two heat dissipation slots are opened on the side plates. An air inlet is arranged on the side plates. A heat dissipation motor is arranged inside the heat dissipation slots. The output end of the heat dissipation motor is connected with a heat dissipation fan. A transmission rod is fixedly installed on the central disc of the heat dissipation fan. The transmission rod rotates through the partition between the heat dissipation slot and the endothermic cavity. The transmission rod and the partition are connected through a sealing bearing. A first connecting gear is connected to the end of the transmission rod. A vertical shaft is rotatably installed inside the endothermic cavity. A second connecting gear is arranged in the middle of the vertical shaft. The second connecting gear is meshed and connected with the first connecting gear. A spiral shaft is connected to the bottom of the vertical shaft. The spiral shaft is inserted into the overflow hole channel.

[0010] Preferably, a group of infusion tubes communicating with the coolant storage cavity are arranged on the bottom side wall of the base.

[0011] Preferably, the device is used in a monitoring system, the monitoring system comprises a central processing module, a monitoring module, an analysis module, an identification module and a communication module, the central processing module is bidirectionally connected with the monitoring module, the analysis module, the identification module and the communication module; The monitoring module is used to simulate the charging and discharging conditions of the power supply in real conditions, and obtain the electrochemical parameters and tomographic images of the power supply under test in real time and online; The analysis module is used for analyzing and processing the tomographic images of the battery, including background separation of the tomographic images, target scale change and sub-pixel interpolation, extraction and measurement preprocessing of the characteristic images of the active substances, and quantitative acquisition of the tomographic images representing the physical morphology of the tomographic structure morphology target of the measured battery, i.e., the target tomographic structure image; The identification module is used to combine the electrochemical performance parameters of the power source with the structural morphology parameters in the tomographic image, import a power source capacity attenuation detection model based on the power source structural morphology, and accurately identify the current power source capacity.

[0012] Preferably, the monitoring module includes an image acquisition unit, a chemical property detection unit and a charge and discharge control unit; the image acquisition unit includes a scanning device for obtaining a three-dimensional tomographic image of the power supply under test, i.e., a power analysis image, in real time and non-destructively; the chemical property detection unit is based on an electrochemical analysis method, and obtains the capacity of the power supply under test, the internal resistance of the power supply, and the electrochemical performance parameters of the charge and discharge cyclic voltammetric performance by measuring the voltage and current during the charge and discharge process of the power supply; the charge and discharge control unit is designed based on a single-chip microcomputer, and is used to simulate the charge and discharge conditions of the power supply under real conditions, and accurately and reliably obtain the electrochemical performance parameters and tomographic image information of the power supply by controlling the charge and discharge state of the power supply under test.

[0013] Preferably, the analysis module includes an image processing unit and a structure processing unit. The image processing unit is used to perform target image and background separation, scale change and sub-pixel interpolation image preprocessing on the tomographic image to extract the information contained in the tomographic image; the structure processing unit is used to combine the electrochemical performance parameters with the working principle of the power supply, and through the active substance identification program, perform binarization processing on the preprocessed target image to perform multi-target tomographic structure extraction, thereby obtaining tomographic images of different physical structural forms of the target power supply, namely, target tomographic images, which are used for the structural morphological analysis operation of the identification module.

[0014] Preferably, the identification module includes an analysis and operation unit and an intelligent detection unit. The analysis and operation unit is used to analyze the target image and obtain the structural morphological parameters in the target image as characteristic information for the system to calculate the actual capacity attenuation of the battery; the intelligent detection unit is used to analyze the characteristic parameters provided by the structure processing unit and bring the characteristic values ​​of the power supply capacity attenuation into a preset capacity attenuation detection function, thereby obtaining the actual capacity attenuation information of the power supply from the power supply capacity attenuation characteristic information.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes an energy storage power attenuation monitoring device, which fully considers the influence of active substances on battery capacity during the power cycle charge and discharge process by setting a monitoring module, an analysis module and an identification module, and corrects the results of electrochemical performance detection according to the changes in the mass and spatial distribution of the active substances, so as to achieve a quantitative description of the battery capacity attenuation by structural morphological parameters. Without destroying the battery itself, the actual capacity attenuation of the battery can be accurately, quickly and non-destructively determined based on the essence of capacity attenuation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the device of the present invention.

[0017] Figure 2 This is another perspective view of the device structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the base structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the structure of the movable frame of the present invention.

[0020] Figure 5 This is a schematic diagram of the movable frame structure of the second embodiment of the present invention.

[0021] Figure 6 This is a structural diagram of the scanning device of the present invention.

[0022] Figure 7 Figure 6 Another perspective of the structure.

[0023] Figure 8 It is a schematic diagram of the side panel structure of the present invention.

[0024] Fig. 9 This is a structural connection diagram of the heat dissipation fan of the present invention.

[0025] Fig.10 This is a structural diagram of the connection between the side panel and the base of the present invention.

[0026] Fig.11 This is a structural diagram of the monitoring system of the present invention.

[0027] Fig.12 This is the structure diagram of the monitoring module.

[0028] Fig.13 This is the structural diagram of the analysis module.

[0029] Fig.14 This is the structural diagram of the identification module.

[0030] In the figure: base 1, bottom groove 2, first push rod 3, power supply body 4, docking block 401, mounting frame 5, movable frame 6, upper movable groove 601, arc rack 602, limit slide groove 603, longitudinal slide rail 7, first slider 8, first adjusting motor 9, first screw rod 10, transverse slide rail 11, second slider 12, second adjusting motor 13, second screw rod 14, second push rod 15, scanning device 16, connecting block 17, clamping block 18, limit slide block 19, third adjusting motor 20, connecting gear 21, side plate 22, heat dissipation groove 23, air inlet 24, heat dissipation motor 25, heat dissipation fan 26, transmission rod 27, first connecting gear 28, heat absorption chamber 29, vertical shaft 30, second connecting gear 31, spiral shaft 32, coolant storage chamber 33, flow channel 34, infusion tube 35. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 14, the present invention provides a technical solution: a storage power attenuation monitoring device, which includes a base 1. A bottom groove 2 is provided on the base 1, and an array of first push rods 3 is installed in the bottom groove 2. The top end of the first push rod 3 is connected to a power supply main body 4. A docking block 401 is provided at the top end of the power supply main body 4. A wiring plug is provided on the docking block 401 for power connection. A device for measuring electrochemical performance parameters is provided in the docking block 401. Mounting brackets 5 are fixedly provided on both side walls of the base 1. The mounting brackets 5 are connected to an adjustable scanning mechanism. The scanning mechanism includes a movable frame 6. The movable frame 6 is a vertically arranged semi-circular arc structure. An upper movable groove 601 is provided on the inner wall of the movable frame 6. An arc-shaped rack 602 is provided on the inner side wall of the upper movable groove 601. A limiting sliding groove 603 is opened on the outer side wall of the movable frame 6; the scanning mechanism further includes a longitudinal sliding rail 7. A connecting block 17 is provided on one side wall of the longitudinal sliding rail 7. The connecting block 17 extends into the upper movable groove 601. A clamping block 18 is provided outside the connecting block 17. The clamping block 18 is in a "C" shape. The clamping block 18 covers the movable frame 6. A limiting sliding block 19 is provided on each of the two inner side walls of the clamping block 18. The limiting sliding block 19 is slidably embedded in the limiting sliding groove 603. Structures such as balls can be provided on the limiting sliding block 19 to reduce the friction during sliding, so that the clamping block 18 moves more smoothly on the movable frame 6. A third adjusting motor 20 is installed inside the connecting block 17. The output end of the third adjusting motor 20 is connected to a connecting gear 21. The connecting gear 21 is meshed and connected with the arc-shaped rack 602. When the third adjusting motor 20 is controlled to start and drive the connecting gear 21 to rotate, the connecting gear 21 rolls on the arc-shaped rack 602, causing the connecting block 17 to move on the movable frame 6; a first sliding block 8 is movably arranged inside the longitudinal sliding rail 7. A first adjusting motor 9 is installed on the top surface of the longitudinal sliding rail 7. The output end of the first adjusting motor 9 is connected to a first lead screw 10. The first lead screw 10 passes through the first sliding block 8 and is in threaded connection with the threaded hole in the middle of the first sliding block 8. Controlling the first adjusting motor 9 to start and drive the first lead screw 10 to rotate can make the first sliding block 8 move up and down inside the longitudinal sliding rail 7. A transverse sliding rail 11 is fixedly connected to one side wall of the first sliding block 8. A second sliding block 12 is slidably arranged inside the transverse sliding rail 11. A second adjusting motor 13 is installed on one end side wall of the transverse sliding rail 11. The output end of the second adjusting motor 13 is connected to a second lead screw 14. The second lead screw 14 passes through the second sliding block 12 and is in threaded connection with the threaded hole in the middle of the second sliding block 12. Controlling the second adjusting motor 13 to start and drive the second lead screw 14 to rotate can make the second sliding block 12 move horizontally inside the transverse sliding rail 11. A second push rod 15 is provided on the surface of the second sliding block 12. The end of the second push rod 15 is connected to a scanning device 16. The scanning device 16 is used to scan the power supply main body 4, such as an X-ray scanning device, etc.

[0033] In another embodiment, the movable frame 6 is a horizontally placed circular structure. The specific structure can be selected by technicians in this field. When it is circular, two sets of equipment for scanning can be provided. For example, when using X-rays, the other end is used to install the corresponding receiving device.

[0034] The scanning device 16 is used to obtain a tomographic image of the power source. During scanning, the first push rod 3 is extended to lift the power source body 4 to Figure 1 At the middle height, the second push rod 15 is extended and attached to the side wall of the power supply body 4 to scan the scanning device 16. The scanning device 16 is moved up and down by controlling the first adjusting motor 9 to start, and the scanning device 16 is moved horizontally by controlling the second adjusting motor 13 to start, thereby performing a comprehensive scan of the side wall of the power supply body 4. When the scanning of one side is completed, the second push rod 15 retracts, and the connecting gear 21 is driven to rotate by controlling the third adjusting motor 20 to move the clamp 18 on the movable frame 6 until the scanning device 16 is flipped to the other side of the power supply body 4 to scan the other side. The scanning is more comprehensive, highly automated, and more convenient.

[0035] The upper surface of the base 1 is provided with a cooling mechanism for cooling the power supply body 4, and the cooling mechanism includes two side panels 22 arranged on the upper surface of the base 1, and the two side panels 22 are respectively located on both sides of the bottom groove 2, and a heat absorption chamber 29 is arranged in the side panel 22, and a coolant storage chamber 33 is arranged inside the base 1, and a flow channel 34 is arranged between the heat absorption chamber 29 and the coolant storage chamber 33 for communication, and two heat dissipation grooves 23 are opened on the side panel 22, and an air inlet 24 is arranged on the side panel 22, and a heat dissipation motor 25 is arranged in the heat dissipation groove 23, and the output end of the heat dissipation motor 25 is connected to a heat dissipation fan 26, and the heat dissipation fan 26 A transmission rod 27 is fixedly installed on the central disc. The transmission rod 27 rotates through the partition between the heat dissipation groove 23 and the heat absorption chamber 29. The transmission rod 27 and the partition are connected by a sealed bearing. A first connecting gear 28 is connected to the end of the transmission rod 27. A vertical shaft 30 is rotatably installed inside the heat absorption chamber 29. A second connecting gear 31 is arranged in the middle of the vertical shaft 30. The second connecting gear 31 is meshed and connected with the first connecting gear 28. A spiral shaft 32 is connected to the bottom of the vertical shaft 30. The spiral shaft 32 is inserted into the flow channel 34. A group of infusion tubes 35 connected to the coolant storage chamber 33 are arranged on the side wall of the bottom end of the base 1.

[0036] When the power supply body 4 is working, a large amount of heat will be generated, which needs to be dissipated in time. First, the power supply body 4 is pulled down by the first push rod 3, so that the inner wall of the side plate 22 is attached to the surface of the power supply body 4. The side wall of the side plate 22 has good thermal conductivity and can absorb the heat generated by the power supply body 4. By starting the heat dissipation motor 25 to drive the heat dissipation fan 26, the air flow rate in the heat dissipation groove 23 is increased, and the heat dissipation can be accelerated. The transmission rod 27 rotates to drive the first connecting gear 28, and then drives the vertical shaft 30 to rotate through the second connecting gear 31, and the spiral shaft 32 rotates accordingly. The two spiral shafts 32 on each side have different directions, which can make the coolant in the heat absorption chamber 29 and the coolant storage chamber 33 circulate, so as to quickly cool down the power supply body 4. When it is necessary to increase the cooling efficiency, the coolant can be directly circulated from the infusion tube 35 to the outside.

[0037] The device is used in a monitoring system, which includes a central processing module, a monitoring module, an analysis module, an identification module and a communication module. The central processing module is bidirectionally connected with the monitoring module, the analysis module, the identification module and the communication module. The monitoring module is used to simulate the actual charging and discharging conditions of the power supply, and obtain the electrochemical parameters and tomographic images of the power supply under test in real time and online. The analysis module is used for tomographic image analysis and processing of the battery, including background separation of the tomographic image, target scale change and sub-pixel interpolation, extraction and measurement preprocessing of the characteristic image of the active substance, and quantitative acquisition of the tomographic image representing the physical morphology of the tomographic structure morphology target of the battery under test, that is, the target tomographic structure image. The identification module is used to combine the electrochemical performance parameters of the power supply with the structural morphology parameters in the tomographic image, import the power capacity attenuation detection model based on the power structure morphology, and accurately identify the current power capacity.

[0038] The monitoring module includes an image acquisition unit, a chemical performance detection unit and a charge and discharge control unit; the image acquisition unit includes a scanning device for obtaining a three-dimensional tomographic image of the power supply under test, i.e., a power supply tomographic image, in real time and non-destructively; the chemical performance detection unit is based on an electrochemical analysis method, and obtains the capacity of the power supply under test, the internal resistance of the power supply, and the electrochemical performance parameters of the charge and discharge cyclic voltammetric performance by measuring the voltage and current during the charge and discharge process of the power supply; the charge and discharge control unit is based on a single-chip microcomputer design, and is used to simulate the real charge and discharge conditions of the power supply, and accurately and reliably obtain the electrochemical performance parameters and tomographic image information of the power supply by controlling the charge and discharge state of the power supply under test.

[0039] The analysis module includes an image processing unit and a structure processing unit. The image processing unit is used to perform target image and background separation, scale change and sub-pixel interpolation image preprocessing on the tomographic image to extract the information contained in the tomographic image; the structure processing unit is used to combine the electrochemical performance parameters with the working principle of the power supply, and through the active substance identification program, the preprocessed target image is binarized to perform multi-target tomographic structure extraction, and then to obtain tomographic images of different physical structural forms of the target power supply, namely, the target tomographic image, which is used for the structural morphological analysis operation of the identification module.

[0040] The recognition module includes an analysis and operation unit and an intelligent detection unit. The analysis and operation unit is used to analyze the target image and obtain the structural morphological parameters in the target image as characteristic information for the system to calculate the actual capacity attenuation of the battery; the intelligent detection unit is used to analyze the characteristic parameters provided by the structure processing unit, and bring the characteristic values ​​of the power supply capacity attenuation into the preset capacity attenuation detection function, so as to obtain the actual capacity attenuation information of the power supply from the power supply capacity attenuation characteristic information.

[0041] The system fully considers the influence of active substances on battery capacity during the power cycle charge and discharge process by setting up monitoring modules, analysis modules and identification modules. According to the changes in the mass and spatial distribution of active substances, the system corrects the results of electrochemical performance detection, and realizes the quantitative description of battery capacity decay by structural morphological parameters. Without destroying the battery itself, the system accurately, quickly and non-destructively judges the actual capacity decay of the battery based on the nature of capacity decay.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy storage power supply attenuation monitoring device, comprising a base (1), characterized in that: A base (1) is provided with a bottom groove (2). An array of first push rods (3) is installed in the bottom groove (2). The top end of the first push rod (3) is connected to a power supply main body (4). Mounting frames (5) are fixedly arranged on both side walls of the base (1). The mounting frames (5) are connected with an adjustable scanning mechanism. A cooling mechanism for cooling the power supply main body (4) is arranged on the upper surface of the base (1).

2. The energy storage power supply attenuation monitoring device according to claim (1) is characterized in that: A docking block (401) is arranged at the top end of the power supply main body (4).

3. The energy storage power supply attenuation monitoring device according to claim 1, characterized in that: The scanning mechanism includes a movable frame (6). The movable frame (6) is a vertically arranged semi-circular arc structure. An upper movable groove (601) is arranged on the inner wall of the movable frame (6). An arc-shaped rack (602) is arranged on the inner side wall of the upper movable groove (601). A limiting sliding groove (603) is formed on the outer side wall of the movable frame (6). The scanning mechanism further includes a longitudinal sliding rail (7). A connecting block (17) is arranged on one side wall of the longitudinal sliding rail (7). The connecting block (17) extends into the upper movable groove (601). A clamping block (18) is arranged outside the connecting block (17). The clamping block (18) is in a "C" shape and covers the movable frame (6). A limiting sliding block (19) is arranged on each of the two inner side walls of the clamping block (18). The limiting sliding block (19) is slidably embedded in the limiting sliding groove (603). A third adjusting motor (20) is installed inside the connecting block (17). The output end of the third adjusting motor (20) is connected to a connecting gear (21). The connecting gear (21) is meshed and connected with the arc-shaped rack (602). When the third adjusting motor (20) is controlled to start and drive the connecting gear (21) to rotate, the connecting gear (21) rolls on the arc-shaped rack (602) so that the connecting block (17) moves on the movable frame (6). A first slider (8) is movably arranged inside the longitudinal sliding rail (7). A first adjusting motor (9) is installed on the top surface of the longitudinal sliding rail (7). The output end of the first adjusting motor (9) is connected to a first lead screw (10). The first lead screw (10) penetrates through the first slider (8) and is in threaded connection with the threaded hole in the middle of the first slider (8). Controlling the first adjusting motor (9) to start and drive the first lead screw (10) to rotate can make the first slider (8) move up and down inside the longitudinal sliding rail (7). A transverse sliding rail (11) is fixedly connected to one side wall of the first slider (8). A second slider (12) is slidably arranged inside the transverse sliding rail (11). A second adjusting motor (13) is installed on one end side wall of the transverse sliding rail (11). The output end of the second adjusting motor (13) is connected to a second lead screw (14). The second lead screw (14) penetrates through the second slider (12) and is in threaded connection with the threaded hole in the middle of the second slider (12). Controlling the second adjusting motor (13) to start and drive the second lead screw (14) to rotate can make the second slider (12) move horizontally inside the transverse sliding rail (11). A second push rod (15) is arranged on the surface of the second slider (12). The end of the second push rod (15) is connected to a scanning device (16).

4. The energy storage power supply attenuation monitoring device according to claim 3 is characterized in that: The movable frame (6) is a circular structure placed horizontally.

5. The energy storage power supply attenuation monitoring device according to claim 1 is characterized in that: The cooling mechanism comprises two side panels (22) arranged on the upper surface of the base (1), the two side panels (22) are respectively located on both sides of the bottom groove (2), a heat absorption chamber (29) is arranged in the side panels (22), a cooling liquid storage chamber (33) is arranged inside the base (1), a flow channel (34) is arranged between the heat absorption chamber (29) and the cooling liquid storage chamber (33) for communication, two heat dissipation grooves (23) are provided on the side panels (22), an air inlet (24) is provided on the side panels (22), a heat dissipation motor (25) is arranged in the heat dissipation groove (23), an output end of the heat dissipation motor (25) is connected to a heat dissipation fan (26), and a heat dissipation fan (26) is arranged on the output end of the heat dissipation motor (25). A transmission rod (27) is fixedly mounted on the central disk of the heat-absorbing fan (26). The transmission rod (27) rotates and passes through a partition between the heat dissipation groove (23) and the heat absorption chamber (29). The transmission rod (27) and the partition are connected via a sealed bearing. A first connecting gear (28) is connected to the end of the transmission rod (27). A vertical shaft (30) is rotatably mounted inside the heat absorption chamber (29). A second connecting gear (31) is disposed in the middle of the vertical shaft (30). The second connecting gear (31) is meshingly connected to the first connecting gear (28). A spiral shaft (32) is connected to the bottom of the vertical shaft (30). The spiral shaft (32) is inserted into the flow passage (34).

6. The energy storage power supply attenuation monitoring device according to claim 1, characterized in that: A group of liquid infusion tubes (35) connected to the cooling liquid storage cavity (33) are arranged on the side wall at the bottom end of the base (1).

7. The energy storage power supply attenuation monitoring device according to claim 1 is applied to a monitoring system, characterized in that: The monitoring system comprises a central processing module, a monitoring module, an analysis module, an identification module and a communication module, wherein the central processing module is bidirectionally connected with the monitoring module, the analysis module, the identification module and the communication module; The monitoring module is used to simulate the charging and discharging conditions of the power supply in real conditions, and obtain the electrochemical parameters and tomographic images of the tested power supply in real time and online; The analysis module is used for analyzing and processing the tomographic images of the battery, including background separation of the tomographic images, target scale change and sub-pixel interpolation, extraction and measurement preprocessing of the characteristic images of the active substances, and quantitative acquisition of the tomographic images representing the physical morphology of the tomographic structure morphology target of the measured battery, i.e., the target tomographic structure image; The identification module is used to combine the electrochemical performance parameters of the power source with the structural morphology parameters in the tomographic image, import a power source capacity attenuation detection model based on the power source structural morphology, and accurately identify the current power source capacity.

8. The energy storage power supply attenuation monitoring device according to claim 7 is characterized in that: The monitoring module includes an image acquisition unit, a chemical property detection unit and a charge and discharge control unit; the image acquisition unit includes a scanning device for obtaining a three-dimensional tomographic image of the power supply under test, i.e., a power supply tomographic image, in real time and non-destructively; the chemical property detection unit is based on an electrochemical analysis method, and obtains the capacity of the power supply under test, the internal resistance of the power supply, and the electrochemical performance parameters of the charge and discharge cyclic voltammetric performance by measuring the voltage and current during the charge and discharge process of the power supply; the charge and discharge control unit is based on a single-chip microcomputer design, and is used to simulate the charge and discharge conditions of the power supply under real conditions, and accurately and reliably obtain the electrochemical performance parameters and tomographic image information of the power supply by controlling the charge and discharge state of the power supply under test.

9. The energy storage power supply attenuation monitoring device according to claim 7, characterized in that: The analysis module includes an image processing unit and a structure processing unit. The image processing unit is used to perform target image and background separation, scale change and sub-pixel interpolation image preprocessing on the tomographic image to extract the information contained in the tomographic image; the structure processing unit is used to combine the electrochemical performance parameters with the working principle of the power supply, and through the active substance identification program, perform binarization processing on the preprocessed target image to perform multi-target tomographic structure extraction, thereby obtaining tomographic images of different physical structural forms of the target power supply, namely, target tomographic images, which are used for the structural morphological analysis operation of the identification module.

10. The energy storage power supply attenuation monitoring device according to claim 7, characterized in that: The identification module includes an analysis and operation unit and an intelligent detection unit. The analysis and operation unit is used to analyze the target image and obtain the structural morphological parameters in the target image as characteristic information for the system to calculate the actual capacity attenuation of the battery; the intelligent detection unit is used to analyze the characteristic parameters provided by the structure processing unit, and bring the characteristic values ​​of the power supply capacity attenuation into a preset capacity attenuation detection function, so as to obtain the actual capacity attenuation information of the power supply from the power supply capacity attenuation characteristic information.

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