A fast-replaceable lithium battery charge and discharge detection device

Abstract

The present invention discloses a quick-change type lithium battery charge and discharge detection device. The present invention drives the mounting plate and multiple detection plates below by an electric telescopic plate, realizing the synchronous progress of charge and discharge detection and bulging detection for each battery in the blade battery pack, improving the detection efficiency and reducing the time waste in the detection process. The detection rods on each detection plate adopt a sliding connection structure of a sleeve and a sliding cylinder, and cooperate with a return spring to provide flexible support for the surface of the blade battery. The detection rods also integrate a cold air discharge function. Through the opening mechanism of the guide rod, ventilation holes and baffles, the bulging part can be immediately cooled when bulging is detected, effectively preventing the explosion risk caused by too high temperature. The design of the soft capsule cylinder and the color display liquid makes the color display liquid overflow from the communication groove to the liquid collection groove when the detection rod is stressed, and the staff can intuitively judge which blade battery has bulged, facilitating the quick positioning and handling of the problematic battery.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery detection, and more specifically, to a quick-replacement lithium battery charge and discharge detection device. Background Art

[0002] A lithium battery charge and discharge detection device is a device used to monitor and test the performance of a lithium battery during the charging and discharging processes. It precisely measures key parameters such as the battery's voltage, current, and temperature, and real-time monitors the battery's charging state, discharge efficiency, and operating temperature to ensure that the battery operates within a safe range. This device usually has a high-precision control system that can simulate different working loads and environmental conditions to help researchers and engineers evaluate the battery's performance, lifespan, and safety. It is particularly important in battery development, quality control, and maintenance management.

[0003] The lithium battery charge and discharge detection device can also provide detailed battery charge and discharge curves, analyzing key indicators such as energy loss and efficiency changes during different charge and discharge processes. Through these data, users can comprehensively evaluate the health status of the battery, promptly discover potential problems in the battery, and take necessary maintenance measures in advance, thereby extending the battery's service life. This device is widely used in fields such as electric vehicles, power energy storage systems, and consumer electronics products, and is crucial for ensuring the efficient and safe operation of the battery system.

[0004] When the existing lithium battery charge and discharge detection device detects a lithium battery, since the battery may bulge during the charging and discharging processes, and the existing detection device cannot detect the bulge. At the same time, the temperature in the bulging area is relatively high. If not dealt with in a timely manner, there may be an explosion risk.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a quick-replacement lithium battery charge and discharge detection device. Summary of the Invention

[0006] The purpose of the present invention is to provide a quick-replacement lithium battery charge and discharge detection device to solve the above problems.

[0007] To achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows:

[0008] A fast-replaceable lithium battery charge and discharge detection device, comprising a support frame, a detection component and a plurality of detection plates. Both left and right ends above the support frame are fixedly connected with pressing components. A cylinder is installed at the lower end of the pressing component. One end of a pair of pressing components close to each other is fixedly connected with a probe component. A blade battery pack is arranged at the upper end of the support frame, and the blade battery pack is located between a pair of probe components. The blade battery pack is composed of a plurality of blade batteries. The detection component is arranged above the blade battery pack. The detection component includes an electric telescopic plate. The electric telescopic plate is fixedly connected to the upper end of the support frame. An installation plate is fixedly connected to the upper end of the electric telescopic plate, and the installation plate is located above the blade battery pack. A plurality of detection plates are fixedly connected to the lower end of the installation plate, and the plurality of detection plates correspond to the blade battery pack. Through the integrated setting, the charge and discharge detection and the bulging detection are carried out synchronously, improving the detection efficiency and reducing the time waste in the detection process. The setting of the support frame and the pressing component ensures the stable positioning of the blade battery pack, providing a reliable basis for the subsequent charge and discharge and bulging detection.

[0009] As a further improvement of the present invention, the detection plate includes a carrier plate. The carrier plate is fixedly connected to the lower end of the installation plate. A plurality of detection rods are fixedly connected to the outer end of the carrier plate, and the plurality of detection rods are all in contact with the blade battery. The setting of the detection plate enables the plurality of detection rods to be in contact with the blade battery simultaneously, realizing the parallel detection of a plurality of batteries and further improving the detection efficiency. The fixed connection of the carrier plate also ensures the stability of the detection rods during the detection process.

[0010] As a further improvement of the present invention, the detection rod includes a sleeve. The sleeve is fixedly connected to the outer end of the carrier plate. A sliding cylinder is slidably connected to the inner end of the sleeve. A limiting ring is fixedly connected to one end of the sliding cylinder close to the carrier plate. A return spring is fixedly connected between the limiting ring and the carrier plate, and the return spring is located in the middle of the sleeve. Through the sliding connection of the sleeve and the sliding cylinder and the elastic action of the return spring, a flexible support can be provided for the surface of the blade battery. When the battery bulges, the sliding cylinder will slide under force and compress the return spring, thus accurately detecting the bulging phenomenon and avoiding damage to the battery surface caused by rigid contact.

[0011] As a further improvement of the present invention, the detection rod further includes a guide rod. The guide rod is fixedly connected to the outer end of the carrier plate and is located in the middle of the return spring. An air vent is opened in the middle of the guide rod. A pair of baffle plates are hinged to the inner wall of the sliding cylinder close to the carrier plate. A torsion spring is arranged at the hinge of the baffle plates. An air cooling pump is installed in the installation plate, and the air cooling pump is respectively connected to a plurality of air vents through hoses. Through the setting of the guide rod and the air vents, and the opening mechanism of the baffle plates, the bulging part can be immediately cooled when the bulging is detected. This instant cooling function effectively prevents the explosion risk caused by too high temperature and improves the safety of the detection process.

[0012] As a further improvement of the present invention, the detection rod further includes a soft capsule cylinder, which is fixedly connected between the limit ring and the carrier plate, and the soft capsule cylinder is located in the middle of the return spring. The guide rod is located in the middle of the soft capsule cylinder. A communication groove is formed in the middle of the carrier plate, and the communication groove is communicated with the soft capsule cylinder. The communication groove and the soft capsule cylinder are both filled with a color-developing liquid. A liquid collecting groove is formed at the upper end of the mounting plate, and the liquid collecting groove is communicated with the communication groove. Through the arrangement of the soft capsule cylinder and the color-developing liquid, when the detection rod is stressed, the color-developing liquid will overflow from the communication groove to the liquid collecting groove, and the staff can intuitively judge which blade battery has bulged, facilitating the quick positioning and handling of the problematic battery.

[0013] As a further improvement of the present invention, the detection rod further includes a plurality of air vents, and the plurality of air vents are all formed at the outer end of the sliding cylinder away from the carrier plate. Through the arrangement of the plurality of air vents, the cold air discharged into the sliding cylinder can be evenly discharged, so as to cool the bulging position more evenly.

[0014] As a further improvement of the present invention, a transparent plate is fixedly connected to the upper inner wall of the liquid collecting groove, and the transparent plate is a convex lens. The setting of the transparent plate not only plays a sealing role in the upper end of the liquid collecting groove to prevent the overflowing color-developing liquid from flowing out, but also its convex lens function can magnify the color-developing area, further improving the convenience and accuracy of observation.

[0015] As a further improvement of the present invention, a clamping plate is fixedly connected to the upper end of the probe assembly. The setting of the clamping plate facilitates the quick replacement of the probe assembly to adapt to the detection requirements of different specifications or types of blade batteries. This replaceability improves the versatility and flexibility of the detection device.

[0016] As a further improvement of the present invention, a plurality of cooling fans are fixedly connected to one end of the pressing assembly close to the blade battery pack. The arrangement of the plurality of cooling fans provides heat dissipation support for the blade battery pack during the overall detection, ensuring temperature stability during the detection process, and further improving the safety and reliability of the detection.

[0017] As a further improvement of the present invention, a plurality of L-shaped fixing blocks are fixedly connected to the upper end of the support frame, and the plurality of L-shaped fixing blocks are respectively located around the blade battery pack. The setting of the L-shaped fixing blocks precisely positions the blade battery pack, prevents docking deviation, ensures the sufficiency and accuracy of the charge and discharge detection, and also improves the overall stability and reliability of the detection device.

[0018] Compared with the prior art, the advantages of the present invention are as follows:

[0019] (1) In this solution, the electric telescopic plate drives the moving of the mounting plate and multiple detection plates below, realizing the synchronous detection of charging and discharging and bulging detection for each battery in the blade battery pack. This integrated setting improves the detection efficiency and reduces the time waste in the detection process.

[0020] (2) In this solution, the detection rod on each detection plate adopts a sliding connection structure of a sleeve and a sliding cylinder, and with the cooperation of a return spring, it can provide flexible support for the surface of the blade battery. When the battery bulges, the sliding cylinder will be forced to slide and compress the return spring, thus accurately detecting the bulging phenomenon.

[0021] (3) In this solution, the detection rod also integrates a cold air discharge function. Through the settings of the guide rod and ventilation holes, and the opening mechanism of the baffle, it can immediately cool the bulging part when detecting a bulge, effectively preventing the explosion risk caused by too high temperature.

[0022] (4) In this solution, the settings of the soft capsule cylinder and the color display liquid make it so that when the detection rod is stressed, the color display liquid will overflow from the communication groove to the liquid collection groove. The staff can intuitively judge which blade battery has bulged, facilitating the quick positioning and handling of the problem battery; the transparent plate serves as the sealing cover of the liquid collection groove and also has the function of a convex lens, magnifying the color display area and further improving the convenience and accuracy of observation.

[0023] (5) In this solution, the probe assembly is fixed by the card plate and countersunk screws, which facilitates the quick replacement of probes of different models to adapt to the detection requirements of different specifications or types of blade batteries. The multiple cooling fans on the pressing assembly provide heat dissipation support for the blade battery pack during the overall detection, ensuring temperature stability during the detection process. The L-shaped fixing block on the support frame accurately positions the blade battery pack, preventing docking deviation and ensuring the sufficiency and accuracy of the charging and discharging detection. Description of the Drawings

[0024] Figure 1 is the overall structural schematic diagram of the present invention;

[0025] Figure 2 is the structural schematic diagram of the pressing assembly of the present invention;

[0026] Figure 3 is the structural schematic diagram of the probe assembly of the present invention;

[0027] Figure 4 is the structural schematic diagram of the card plate of the present invention;

[0028] Figure 5 is the structural schematic diagram of the detection assembly of the present invention;

[0029] Figure 6 is the structural schematic diagram of the detection plate of the present invention;

[0030] Figure 7 Schematic side sectional view structure of the detection board of the present invention;

[0031] Figure 8 Of the present invention Figure 7 Enlarged structure schematic diagram at position A in

[0032] Description of reference numerals in the figure:

[0033] 1. Support frame; 2. Pressing component; 3. Probe component; 4. Electric telescopic plate; 5. Mounting plate; 6. Detection board; 61. Carrier plate; 62. Detection rod; 621. Sleeve; 622. Sliding cylinder; 623. Limit ring; 624. Return spring; 625. Guide rod; 626. Vent hole; 627. Baffle; 628. Soft capsule cylinder; 629. Air outlet; 7. Clamping plate; 8. Cooling fan; 9. Liquid collecting tank; 10. Transparent plate; 11. L-shaped fixing block; 12. Blade battery pack. Specific embodiments

[0034] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figures 1-8 , a fast-replaceable lithium battery charge and discharge detection device, including a support frame 1, a detection component and a plurality of detection boards 6. Both the left and right ends above the support frame 1 are fixedly connected with pressing components 2. A cylinder is installed at the lower end of the pressing component 2. One end of a pair of pressing components 2 close to each other is fixedly connected with a probe component 3. A blade battery pack 12 is arranged at the upper end of the support frame 1, and the blade battery pack 12 is located between a pair of probe components 3. The blade battery pack 12 is composed of a plurality of blade batteries. The detection component is arranged above the blade battery pack 12. The detection component includes an electric telescopic plate 4. The electric telescopic plate 4 is fixedly connected to the upper end of the support frame 1. The upper end of the electric telescopic plate 4 is fixedly connected with a mounting plate 5, and the mounting plate 5 is located above the blade battery pack 12. A plurality of detection boards 6 are fixedly connected to the lower end of the mounting plate 5, and the plurality of detection boards 6 correspond to the blade battery pack 12. The pressing component 2 is driven by a cylinder to move the probe component 3 to dock with the blade battery pack 12 for charge and discharge detection. At the same time, the electric telescopic plate 4 is used to drive the mounting plate 5 to move downward to move the plurality of detection boards 6 to the position of the blade battery pack 12 and insert them between the plurality of blade batteries respectively for bulging detection and cooling, thereby effectively preventing the explosion phenomenon caused by excessive bulging and too high temperature.

[0037] The detection board 6 includes a carrier plate 61, which is fixedly connected to the lower end of the mounting plate 5. A plurality of detection rods 62 are fixedly connected to the outer end of the carrier plate 61, and the plurality of detection rods 62 are all abutted against the blade batteries. By inserting the carrier plate 61 between a pair of blade batteries and making the plurality of detection rods 62 abut against the surface of the blade batteries, the bulging phenomenon on the surface of the blade batteries can be detected.

[0038] The detection rod 62 includes a sleeve 621, which is fixedly connected to the outer end of the carrier plate 61, and a slide 622 is slidably connected to the inner end of the sleeve 621. The slide 622 is fixedly connected to a limit ring 623 at one end close to the carrier plate 61, and a return spring 624 is fixedly connected between the limit ring 623 and the carrier plate 61, and the return spring 624 is located in the middle of the sleeve 621. The surface of the blade battery is supported by the slide 622. When a bulge occurs, the slide 622 is forced to slide into the sleeve 621 and compress the return spring 624. Under the elastic action of the return spring 624, the slide 622 can play a role of flexible support for the blade battery. At the same time, the limit ring 623 can limit the slide 622 to prevent the slide 622 from separating from the sleeve 621.

[0039] The detection rod 62 also includes a guide rod 625, which is fixedly connected to the outer end of the carrier plate 61, and the guide rod 625 is located in the middle of the reset spring 624, and a vent hole 626 is opened in the middle of the guide rod 625. A pair of baffles 627 are hinged on the inner wall of the slide tube 622 near the carrier plate 61, and a torsion spring is provided at the hinge of the baffle 627. An air pump is installed in the mounting plate 5, and the air pump is connected to a plurality of air holes 626 through a hose. When the slide tube 622 is forced to slide into the sleeve 621, the guide rod 625 is resisted. Under the action, a pair of baffles 627 are forced to rotate and open, and then the cold air discharged by the cold air pump is blown out from the guide rod 625, so that the cold air is discharged from the slide 622 to cool the bulge and prevent the explosion caused by excessive temperature. When resetting the detection plate 6, the pair of baffles 627 are blocked again by the torsion spring. The baffles 627 are used to block the inside of the slide 622. When the bulge occurs, the cold air can only be discharged through the position of the open pair of baffles 627, and will not be discharged from other slides 622.

[0040] The detection rod 62 further includes a soft capsule cylinder 628. The soft capsule cylinder 628 is fixedly connected between the limit ring 623 and the carrier plate 61, and the soft capsule cylinder 628 is located in the middle of the return spring 624. The guide rod 625 is located in the middle of the soft capsule cylinder 628. A communication groove is formed in the middle of the carrier plate 61, and the communication groove is communicated with the soft capsule cylinder 628. The communication groove and the soft capsule cylinder 628 are both filled with a color-developing liquid. A liquid collecting groove 9 is formed at the upper end of the mounting plate 5, and the liquid collecting groove 9 is communicated with the communication groove. When the sliding cylinder 622 is forced to push the limit ring 623 to compress the return spring 624, the soft capsule cylinder 628 is squeezed, so that the color-developing liquid in the soft capsule cylinder 628 enters the communication groove and overflows from the liquid collecting groove 9. The staff can intuitively judge whether a certain blade battery bulges, so as to facilitate the treatment of the bulging part of the blade battery.

[0041] The detection rod 62 further includes a plurality of air outlets 629. The plurality of air outlets 629 are all formed at the outer end of the sliding cylinder 622 away from the carrier plate 61. Through the plurality of air outlets 629, the cold air discharged into the sliding cylinder 622 can be evenly discharged, so that the cold air evenly cools the bulging position.

[0042] A transparent plate 10 is fixedly connected to the upper inner wall of the liquid collecting groove 9, and the transparent plate 10 is a convex lens. The upper end of the liquid collecting groove 9 is sealed through the transparent plate 10 to prevent the overflowing color-developing liquid from flowing out. At the same time, the setting of the convex lens can magnify the color-developing area, so as to facilitate the staff to observe.

[0043] A clamping plate 7 is fixedly connected to the upper end of the probe assembly 3. The clamping plate 7 is clamped at the upper end of the probe assembly 3 and locked with a countersunk screw to complete the assembly of the probe assembly 3. Then, when the probe assembly 3 needs to be replaced, the screw is loosened, the probe assembly 3 is replaced, and then tightened, so as to facilitate the replacement of the model of the probe assembly 3.

[0044] A plurality of radiating fans 8 are fixedly connected to one end of the pressing assembly 2 close to the blade battery pack 12. Through the plurality of radiating fans 8, heat dissipation can be carried out during the overall detection of the blade battery pack 12.

[0045] A plurality of L-shaped fixing blocks 11 are fixedly connected to the upper end of the support frame 1, and the plurality of L-shaped fixing blocks 11 are respectively located around the blade battery pack 12. Through the plurality of L-shaped fixing blocks 11, the placement of the blade battery pack 12 can be positioned to prevent deviation when the blade battery pack 12 is butted with the probe assembly 3, resulting in insufficient detection of charge and discharge.

[0046] Working principle:

[0047] First, the blade battery pack 12 is placed at the upper end of the support frame 1 and precisely positioned by a plurality of L-shaped fixing blocks 11 to prevent docking deviation. The pressing assembly 2 is fixedly connected to the left and right ends above the support frame 1. A cylinder is installed at its lower end, and the movement of the pressing assembly 2 is driven by the telescopic movement of the cylinder, so that a pair of pressing assemblies 2 approach each other. The probe assembly 3 fixedly connected to one end of the pressing assembly 2 also moves accordingly and docks with the blade battery pack 12, thereby realizing charge and discharge detection. When bulge detection is required, the electric telescopic plate 4 drives the mounting plate 5 to move downward, so that a plurality of detection plates 6 are respectively inserted between a plurality of blade batteries. When a blade battery bulges, the bulging part will squeeze the detection rod 62, causing the sliding cylinder 622 to slide into the sleeve 621 under force and compress the return spring 624. At the same time, the ventilation holes 626 on the guide rod 625 in the detection rod 62 are connected to the cold air pump in the mounting plate 5. When the sliding cylinder 622 slides under force, a pair of baffles 627 hinged to the inner wall of the sliding cylinder 622 will be opened, so that the cold air discharged by the cold air pump enters the sliding cylinder 622 through the ventilation holes 626 and is evenly discharged through a plurality of air outlet holes 629 to cool the bulging part and prevent explosion caused by excessive temperature. When the sliding cylinder 622 pushes the limit ring 623 under force to compress the return spring 624, it will also squeeze the soft capsule cylinder 628, causing the color-developing liquid to overflow from the communication groove to the liquid collecting groove 9 at the upper end of the mounting plate 5. The upper inner wall of the liquid collecting groove 9 is fixedly connected with a transparent plate 10, and the transparent plate 10 is a convex lens, which can magnify the color-developing area, facilitating the staff to observe and directly judge which blade battery has bulged. During the detection process, a plurality of cooling fans 8 fixedly connected to the end of the pressing assembly 2 close to the blade battery pack 12 will dissipate heat from the blade battery pack 12 as a whole to ensure temperature stability during the detection process. The clamping plate 7 fixedly connected to the upper end of the probe assembly 3 facilitates the quick replacement of the probe assembly 3 to meet the detection requirements of different specifications or types of blade batteries.

[0048] It can be seen from the above technical solutions that the present invention has the following beneficial effects:

[0049] The present invention drives the mounting plate 5 and multiple detection plates 6 below it through the electric telescopic plate 4, realizing the synchronous detection of charging and discharging and bulging of each battery in the blade battery pack 12; this integrated setting improves the detection efficiency and reduces the time waste in the detection process; the detection rod 62 on each detection plate 6 adopts the sliding connection structure of the sleeve 621 and the sliding cylinder 622, and with the reset spring 624, it can provide flexible support for the surface of the blade battery; when the battery bulges, the sliding cylinder 622 will slide under force and compress the reset spring 624, thus accurately detecting the bulging phenomenon; the detection rod 62 also integrates the cold air discharge function. Through the settings of the guide rod 625 and the ventilation hole 626, and the opening mechanism of the baffle 627, it can immediately cool the bulging part when detecting the bulge, effectively preventing the explosion risk caused by excessive temperature; the settings of the soft capsule cylinder 628 and the coloring liquid make it that when the detection rod 62 is stressed, the coloring liquid will overflow from the communication groove to the liquid collecting groove 9, and the staff can intuitively judge which blade battery has bulged, facilitating the quick positioning and handling of the problematic battery; the transparent plate 10 serves as the sealing cover of the liquid collecting groove 9 and also has the function of a convex lens, magnifying the coloring area and further improving the convenience and accuracy of observation; the probe assembly 3 is fixed by the clamping plate 7 and the countersunk head screw, which is convenient for quickly replacing probes of different models to adapt to the detection requirements of different specifications or types of blade batteries; the settings of the detection assembly and the detection plate 6 consider the ease of maintenance, so that during long-term use, such as in case of damage or need for upgrade, they can be easily replaced or adjusted; the multiple heat dissipation fans 8 on the pressing assembly 2 provide heat dissipation support for the overall detection of the blade battery pack 12, ensuring the temperature stability during the detection process; the L-shaped fixing block 11 on the support frame 1 accurately positions the blade battery pack 12, preventing docking deviation and ensuring the sufficiency and accuracy of the charging and discharging detection.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation manners understandable by those skilled in the art.

Claims

1. A quick-change lithium battery charge and discharge detection device, characterized in that: include: A support frame (1), wherein both left and right ends of the upper side of the support frame (1) are fixedly connected to a pressing assembly (2), a cylinder is installed at the lower end of the pressing assembly (2), a pair of pressing assemblies (2) are fixedly connected to one end close to each other with a probe assembly (3), a blade battery pack (12) is provided at the upper end of the support frame (1), and the blade battery pack (12) is located between the pair of probe assemblies (3), and the blade battery pack (12) is composed of a plurality of blade batteries; A detection component, the detection component is arranged above the blade battery pack (12), the detection component comprises an electric telescopic plate (4), the electric telescopic plate (4) is fixedly connected to the upper end of the support frame (1), the upper end of the electric telescopic plate (4) is fixedly connected to a mounting plate (5), and the mounting plate (5) is located above the blade battery pack (12); A detection board (6), wherein the number of the detection boards (6) is plural, the plurality of detection boards (6) are fixedly connected to the lower end of the mounting plate (5), and the plurality of detection boards (6) correspond to the blade battery pack (12); The detection plate (6) comprises a carrier plate (61), the carrier plate (61) is fixedly connected to the lower end of the mounting plate (5), a plurality of detection rods (62) are fixedly connected to the outer end of the carrier plate (61), and the plurality of detection rods (62) are all in contact with the blade battery; The detection rod (62) comprises a sleeve (621), the sleeve (621) is fixedly connected to the outer end of the carrier plate (61), the inner end of the sleeve (621) is slidably connected to a slide cylinder (622), one end of the slide cylinder (622) close to the carrier plate (61) is fixedly connected to a limit ring (623), a return spring (624) is fixedly connected between the limit ring (623) and the carrier plate (61), and the return spring (624) is located in the middle of the sleeve (621); The detection rod (62) further comprises a guide rod (625), wherein the guide rod (625) is fixedly connected to the outer end of the carrier plate (61), and the guide rod (625) is located in the middle of the return spring (624), and a vent hole (626) is provided in the middle of the guide rod (625), and a pair of baffles (627) are hingedly connected to the inner wall of the slide tube (622) close to the carrier plate (61), and a torsion spring is provided at the hinge of the baffle (627), and an air pump is installed in the mounting plate (5), and the air pump is connected to the plurality of air holes (626) through hoses.

2. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: The detection rod (62) further comprises a soft capsule tube (628), wherein the soft capsule tube (628) is fixedly connected between the limiting ring (623) and the carrier plate (61), and the soft capsule tube (628) is located in the middle of the return spring (624), and the guide rod (625) is located in the middle of the soft capsule tube (628), a connecting groove is provided in the middle of the carrier plate (61), and the connecting groove is connected to the soft capsule tube (628), and the connecting groove and the soft capsule tube (628) are both filled with a color developing liquid, and a liquid collecting groove (9) is provided at the upper end of the mounting plate (5), and the liquid collecting groove (9) is connected to the connecting groove.

3. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: The detection rod (62) further comprises a plurality of air outlet holes (629), and the plurality of air outlet holes (629) are all disposed at the outer end of the slide tube (622) away from the carrier plate (61).

4. A quick-change lithium battery charge and discharge detection device according to claim 2, characterized in that: A transparent plate (10) is fixedly connected to the inner wall of the liquid collecting tank (9), and the transparent plate (10) is a convex lens.

5. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: A clamping plate (7) is fixedly connected to the upper end of the probe assembly (3).

6. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: A plurality of cooling fans (8) are fixedly connected to one end of the pressing assembly (2) close to the blade battery pack (12).

7. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: A plurality of L-shaped fixing blocks (11) are fixedly connected to the upper end of the support frame (1), and the plurality of L-shaped fixing blocks (11) are respectively located around the blade battery pack (12).

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