Rapid replacement type lithium battery charging and discharging detection device

Abstract

The invention discloses a rapid replacement type lithium battery charge and discharge detection device, which drives a mounting plate and a plurality of detection plates below to move through an electric telescopic plate, realizes synchronous charge and discharge detection and bump detection of each battery in a blade battery pack, improves the detection efficiency, reduces the time waste in the detection process, and improves the detection efficiency. A detection rod on each detection plate adopts a sliding connection structure of a sleeve and a sliding cylinder, and is matched with a reset spring, so that flexible support can be provided for the surface of a blade battery, the detection rods also integrate a cold air discharge function, and through a guide rod, a vent hole and an opening mechanism of a baffle, a bulge can be immediately cooled when the bulge is detected, so that the detection efficiency is improved. The explosion risk caused by too high temperature is effectively prevented, due to the design of the soft bag barrel and the developing liquid, when the detection rod is stressed, the developing liquid overflows from the communicating groove to the liquid collecting groove, a worker can visually judge which blade battery has a bulge, and the problem battery can be rapidly positioned and handled.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery detection, and more specifically to a quick-change 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 lithium batteries during the charging and discharging process. It monitors the battery's charging state, discharge efficiency, and operating temperature in real time by accurately measuring key parameters such as battery voltage, current, and temperature to ensure that the battery operates within a safe range. The device usually has a high-precision control system that can simulate different workloads and environmental conditions to help researchers and engineers evaluate the performance, life, and safety of batteries, which is especially 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, and analyze key indicators such as energy loss and efficiency changes during different charge and discharge processes. With these data, users can comprehensively evaluate the health of the battery, promptly identify potential problems with the battery, and take necessary maintenance measures in advance, thereby extending the battery life. The device is widely used in electric vehicles, power storage systems, consumer electronics and other fields, and is essential to ensure the efficient and safe operation of the battery system.

[0004] When the existing lithium battery charge and discharge detection device detects the lithium battery, the battery will bulge during the charge and discharge process, but the existing detection device cannot detect the bulging. At the same time, the temperature in the bulging area is high. If it is not handled in time, there may be a risk of explosion.

[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 object of the present invention is to provide a quick-change lithium battery charge and discharge detection device to solve the above-mentioned problems.

[0007] In order to achieve the above purpose, the technical solution provided by an embodiment of the present invention is as follows: A quick-change lithium battery charge and discharge detection device comprises a support frame, a detection assembly and a plurality of detection plates, wherein the left and right ends above the support frame are fixedly connected with a pressing assembly, a cylinder is installed at the lower end of the pressing assembly, a pair of pressing assemblies are fixedly connected with a probe assembly at one end close to each other, a blade battery pack is provided at the upper end of the support frame, and the blade battery pack is located between a pair of probe assemblies, the blade battery pack is composed of a plurality of blade batteries, the detection assembly is arranged above the blade battery pack, the detection assembly comprises an electric telescopic plate, the electric telescopic plate is fixedly connected to the upper end of the support frame, the upper end of the electric telescopic plate is fixedly connected with a mounting plate, and the mounting plate is located above the blade battery pack, a plurality of the detection plates are fixedly connected to the lower end of the mounting plate, and a plurality of the detection plates correspond to the blade battery pack, and the charging and discharging detection and the bulging detection are realized synchronously through the integrated setting, the detection efficiency is improved, and the time waste in the detection process is reduced, the setting of the support frame and the pressing assembly ensures the stable positioning of the blade battery pack, and provides a reliable basis for subsequent charging and discharging and bulging detection.

[0008] 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 mounting plate, and 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 arrangement of the detection plate enables the plurality of detection rods to be in contact with the blade battery at the same time, thereby realizing 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.

[0009] As a further improvement of the present invention, the detection rod includes a sleeve, which is fixedly connected to the outer end of the carrier plate, and the inner end of the sleeve is slidably connected to a slide cylinder, and the slide cylinder is fixedly connected to a limiting ring near one end of the carrier plate, and a reset spring is fixedly connected between the limiting ring and the carrier plate, and the reset spring is located in the middle of the sleeve. Through the sliding connection between the sleeve and the slide cylinder and the elastic action of the reset spring, flexible support can be provided to the surface of the blade battery. When the battery bulges, the slide cylinder will slide under force and compress the reset spring, thereby accurately detecting the bulging phenomenon and avoiding damage to the battery surface due to rigid contact.

[0010] As a further improvement of the present invention, the detection rod also includes a guide rod, which is fixedly connected to the outer end of the carrier plate and is located in the middle of the reset spring. A vent hole is opened in the middle of the guide rod. A pair of baffles are hinged on the inner wall of the slide cylinder close to the carrier plate. A torsion spring is provided at the hinge of the baffle. An air pump is installed in the mounting plate, and the air pump is connected to multiple air holes through hoses. Through the setting of the guide rod and the air holes, and the opening mechanism of the baffle, the bulge can be cooled immediately when the bulge is detected. This instant cooling function effectively prevents the risk of explosion caused by excessive temperature and improves the safety of the detection process.

[0011] As a further improvement of the present invention, the detection rod also includes a soft capsule tube, which is fixedly connected between the limit ring and the carrier plate, and the soft capsule tube is located in the middle of the reset spring, the guide rod is located in the middle of the soft capsule tube, a connecting groove is opened in the middle of the carrier plate, and the connecting groove is connected with the soft capsule tube, the connecting groove and the soft capsule tube are filled with color developing liquid, and a liquid collecting groove is opened at the upper end of the mounting plate, and the liquid collecting groove is connected with the connecting groove. Through the arrangement of the soft capsule tube and the color developing liquid, when the detection rod is subjected to force, the color developing liquid will overflow from the connecting groove to the liquid collecting groove, and the staff can intuitively judge which blade battery has a bulge, which is convenient for quickly locating and handling the problem battery.

[0012] As a further improvement of the present invention, the detection rod also includes a plurality of air outlet holes, and the plurality of air outlet holes are all opened at the outer end of the slide tube away from the carrier plate. Through the setting of the plurality of air outlet holes, the cold air discharged into the slide tube can be discharged evenly, thereby cooling the bulge position more evenly.

[0013] As a further improvement of the present invention, a transparent plate is fixedly connected to the inner wall of the liquid collecting tank, and the transparent plate is a convex lens. The setting of the transparent plate not only seals the upper end of the liquid collecting tank to prevent the overflow of the color-developing liquid from flowing out, but its convex lens function can also magnify the color-developing area, further improving the convenience and accuracy of observation.

[0014] As a further improvement of the present invention, a card plate is fixedly connected to the upper end of the probe assembly, and the provision of the card plate facilitates the rapid replacement of the probe assembly to meet the requirements of blade battery detection of different specifications or types. This replaceability improves the versatility and flexibility of the detection device.

[0015] As a further improvement of the present invention, the pressing assembly is fixedly connected to a plurality of cooling fans near one end of the blade battery pack. The arrangement of the plurality of cooling fans provides heat dissipation support for the blade battery pack during overall detection, ensures temperature stability during the detection process, and further improves the safety and reliability of the detection.

[0016] 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 accurately positions the blade battery pack, prevents docking deviation, ensures the adequacy and accuracy of charge and discharge detection, and also improves the overall stability and reliability of the detection device.

[0017] Compared with the prior art, the advantages of the present invention are: (1) This solution uses an electric telescopic plate to drive the installation plate and multiple detection plates below to move, thereby realizing the simultaneous charging and discharging detection and bulge detection of each battery in the blade battery pack. This integrated setting improves the detection efficiency and reduces the time waste in the detection process.

[0018] (2) In this solution, the detection rod on each detection plate adopts a sliding connection structure of a sleeve and a slide cylinder, and cooperates with a reset spring to provide flexible support for the surface of the blade battery. When the battery bulges, the slide cylinder will slide under force and compress the reset spring, thereby accurately detecting the bulge.

[0019] (3) In this solution, the detection rod also integrates a cold air discharge function. Through the setting of the guide rod and the vent hole, as well as the opening mechanism of the baffle, the bulge can be cooled immediately when the bulge is detected, effectively preventing the risk of explosion caused by excessive temperature.

[0020] (4) The arrangement of the soft capsule tube and the color-developing liquid in this scheme enables the color-developing liquid to overflow from the connecting groove into the liquid collecting groove when the detection rod is subjected to force. The staff can visually determine where the blade battery has a bulge, which facilitates the rapid location and treatment of the problematic battery. The transparent plate serves as a sealing cover for the liquid collecting groove and also has the function of a convex lens, which magnifies the color-developing area and further improves the convenience and accuracy of observation.

[0021] (5) In this solution, the probe assembly is fixed by a clamping plate and a countersunk screw, which facilitates the rapid replacement of probes of different models to meet the detection requirements of blade batteries of different specifications or types. 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 to prevent docking deviation, thereby ensuring the adequacy and accuracy of charge and discharge detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the pressing assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the probe assembly of the present invention; Figure 4 It is a schematic diagram of the card board structure of the present invention; Figure 5 It is a schematic diagram of the structure of the detection component of the present invention; Figure 6 It is a schematic diagram of the structure of the detection board of the present invention; Figure 7 It is a schematic diagram of the side cross-sectional structure of the detection board of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0023] Description of the numbers in the figure: 1. Support frame; 2. Press-fit assembly; 3. Probe assembly; 4. Electric telescopic plate; 5. Mounting plate; 6. Detection plate; 61. Carrier plate; 62. Detection rod; 621. Sleeve; 622. Slide; 623. Limit ring; 624. Reset spring; 625. Guide rod; 626. Vent; 627. Baffle; 628. Soft capsule tube; 629. Vent; 7. Card plate; 8. Cooling fan; 9. Liquid collecting tank; 10. Transparent plate; 11. L-shaped fixing block; 12. Blade battery pack. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1-8 A quick-change lithium battery charge and discharge detection device comprises a support frame 1, a detection assembly and a plurality of detection plates 6. A pressing assembly 2 is fixedly connected to both left and right ends of the upper side of the support frame 1. 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. The blade battery pack 12 is composed of a plurality of blade batteries. The detection assembly is arranged above the blade battery pack 12. The detection assembly comprises an electric telescopic plate 4, which is fixedly connected to 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, and multiple detection plates 6 are fixedly connected to the lower end of the mounting plate 5, and the multiple detection plates 6 correspond to the blade battery pack 12. The cylinder drives the pressing assembly 2 to move the probe assembly 3 to dock with the blade battery pack 12 for charging and discharging detection. At the same time, the electric telescopic plate 4 drives the mounting plate 5 to move downward to move the multiple detection plates 6 to the position of the blade battery pack 12 and insert them between the multiple blade batteries for bulging detection and cooling, thereby effectively preventing the explosion caused by excessive bulging and excessive temperature.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The detection rod 62 also includes a soft capsule tube 628, which is fixedly connected between the limit ring 623 and the carrier plate 61, and the soft capsule tube 628 is located in the middle of the reset spring 624, and the guide rod 625 is located in the middle of the soft capsule tube 628. A connecting groove is opened in the middle of the carrier plate 61, and the connecting groove is connected with the soft capsule tube 628. The connecting groove and the soft capsule tube 628 are filled with color developing liquid. A liquid collecting groove 9 is opened at the upper end of the mounting plate 5, and the liquid collecting groove 9 is connected with the connecting groove. The limit ring 623 is pushed by the slide 622 to compress the reset spring 624, and the soft capsule tube 628 is squeezed, so that the color developing liquid in the soft capsule tube 628 enters the connecting groove and overflows from the liquid collecting groove 9. The staff can intuitively judge that the blade battery has a bulge at a certain place, thereby facilitating the treatment of the bulge of the blade battery.

[0031] The detection rod 62 also includes a plurality of air outlet holes 629, which are all opened at the outer end of the slide 622 away from the carrier plate 61. The cold air discharged into the slide 622 can be evenly discharged through the plurality of air outlet holes 629, so that the cold air can evenly cool the bulge position.

[0032] 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. The upper end of the liquid collecting tank 9 is sealed by the transparent plate 10 to prevent the overflow of the color developing liquid from flowing out. At the same time, the setting of the convex lens can enlarge the color developing area, thereby facilitating observation by the staff.

[0033] A clamping plate 7 is fixedly connected to the upper end of the probe assembly 3. The assembly of the probe assembly 3 is completed by clamping the clamping plate 7 on the upper end of the probe assembly 3 and locking it with a countersunk screw. When the probe assembly 3 is replaced, the screw is screwed in to replace the probe assembly 3 and then tightened, thereby facilitating the replacement of the model of the probe assembly 3.

[0034] A plurality of heat dissipation fans 8 are fixedly connected to one end of the pressing assembly 2 close to the blade battery pack 12 , and the plurality of heat dissipation fans 8 can be used to dissipate heat during the overall inspection of the blade battery pack 12 .

[0035] 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. The blade battery pack 12 can be positioned by the plurality of L-shaped fixing blocks 11 to prevent deviation when the blade battery pack 12 is docked with the probe assembly 3, thereby causing insufficient charge and discharge detection.

[0036] Working principle: First, the blade battery pack 12 is placed on the upper end of the support frame 1 and is 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 of the upper side of the support frame 1, and a cylinder is installed at its lower end. The pressing assembly 2 is driven to move by the extension of the cylinder, so that a pair of pressing assemblies 2 are close to each other, and 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, so that the slide 622 is forced to slide into the sleeve 621, and compress the reset spring 624. At the same time, the vent 626 on the guide rod 625 in the detection rod 62 is connected to the cold air pump in the mounting plate 5. When the slide 622 is forced to slide, a pair of baffles 627 hinged on the inner wall of the slide 622 will be opened, so that the cold air discharged by the cold air pump enters the slide 622 through the vent 626 and is evenly discharged through multiple air outlets 629, cooling the bulge to prevent the temperature from being too high and causing an explosion. When the slide 622 is forced to push the limit ring 623 to compress the reset spring 624, it will also squeeze the soft capsule tube 628, causing the color developing liquid to overflow from the connecting groove into the liquid collecting tank 9 at the upper end of the mounting plate 5. A transparent plate 10 is fixedly connected to the inner wall of the liquid collecting tank 9. The transparent plate 10 is a convex lens that can magnify the color developing area, making it easy for the staff to observe and intuitively determine which blade battery has a bulge. During the detection process, multiple cooling fans 8 fixedly connected to one end of the pressing assembly 2 near the blade battery pack 12 will dissipate the overall heat of the blade battery pack 12 to ensure temperature stability during the detection process, while the card plate 7 fixedly connected to the upper end of the probe assembly 3 facilitates the rapid replacement of the probe assembly 3 to adapt to the detection requirements of blade batteries of different specifications or types.

[0037] It can be seen from the above technical solutions that the present invention has the following beneficial effects: The present invention drives the mounting plate 5 and the multiple detection plates 6 below to move by the electric telescopic plate 4, thereby realizing the simultaneous charging and discharging detection and bulging detection 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 a sliding connection structure of a sleeve 621 and a slide 622, and cooperates with a reset spring 624 to provide flexible support for the surface of the blade battery; when a bulge occurs in the battery, the slide 622 will slide under force and compress the reset spring 624, thereby accurately detecting the bulging phenomenon; the detection rod 62 also integrates a cold air discharge function, through the setting of the guide rod 625 and the vent 626, and the opening mechanism of the baffle 627, the bulge can be immediately cooled when a bulge is detected, effectively preventing the risk of explosion caused by excessive temperature; the setting of the soft capsule tube 628 and the color developing liquid makes it possible for the color developing liquid to flow out from the connecting The liquid overflows from the tank to the collecting tank 9, and the staff can intuitively determine which blade battery has bulged, which is convenient for quickly locating and handling the problem battery; the transparent plate 10 serves as a sealing cover for the collecting tank 9 and also has the function of a convex lens, which amplifies the color display area and further improves the convenience and accuracy of observation; the probe assembly 3 is fixed by a clamping plate 7 and a countersunk screw, which is convenient for quickly replacing probes of different models to meet the detection needs of blade batteries of different specifications or types; the setting of the detection assembly and the detection board 6 takes into account easy maintenance, so that during long-term use, if they are damaged or need to be upgraded, they can be easily replaced or adjusted; the multiple cooling fans 8 on the pressing assembly 2 provide heat dissipation support for the blade battery pack 12 during the overall detection, ensuring temperature stability during the detection process; the L-shaped fixing block 11 on the support frame 1 accurately positions the blade battery pack 12, prevents docking deviation, and ensures the adequacy and accuracy of charge and discharge detection.

[0038] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that those skilled in the art can understand.

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 multiple, the multiple detection boards (6) are fixedly connected to the lower end of the mounting plate (5), and the multiple detection boards (6) correspond to the blade battery pack (12).

2. A quick-change lithium battery charge and discharge detection device according to claim 1, characterized in that: The detection plate (6) comprises a carrier plate (61), the carrier plate (61) being fixedly connected to the lower end of the mounting plate (5), a plurality of detection rods (62) being 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 batteries.

3. A quick-change lithium battery charge and discharge detection device according to claim 2, characterized in that: 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).

4. A quick-change lithium battery charge and discharge detection device according to claim 3, characterized in that: 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.

5. A quick-change lithium battery charge and discharge detection device according to claim 4, 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.

6. A quick-change lithium battery charge and discharge detection device according to claim 3, 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).

7. A quick-change lithium battery charge and discharge detection device according to claim 5, 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.

8. 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).

9. 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).

10. 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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