An energy storage lithium battery cabinet supporting capacity expansion

Abstract

The present invention discloses an energy storage lithium battery cabinet supporting capacity expansion, which relates to the technical field of energy storage cabinets and includes: a cabinet body, an electric telescopic rod, a solution cavity, and a battery carrier plate. The electric telescopic rod is fixedly connected to the cabinet body, the solution cavity is fixedly connected to the upper end of the electric telescopic rod, and the battery carrier plate is vertically slidably connected to the solution cavity. When the lithium battery is over-discharged or the battery ages and its weight decreases, the present invention indirectly uses the round pipe orifice and the square through-port in cooperation to change the size of their overlapping flow ports. According to the manifestation form of the law of conservation of mass in fluid mechanics, it can be known that the gradually decreasing overlapping flow port will make the flow rate of the coolant flowing in the transfer pipe faster, and under the detection of the flow rate sensor therein, early warning feedback is carried out. This mechanical transmission, through the feedback method of water flow velocity, is designed differently from the method of using voltage monitoring in the prior art for monitoring, improving the monitoring perfection of over-discharge and aging of lithium batteries.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage cabinets, and specifically to an energy storage lithium battery cabinet supporting capacity expansion. Background Art

[0002] In the current application fields of electronic devices, energy storage systems, and power equipment, lithium batteries are widely used as key energy storage units. Once the lithium battery pack is over-discharged, the structure of the electrode material will be damaged, and even internal short circuits of the battery may be triggered; when the battery power is over-released, irreversible structural changes will occur in the electrode material. If not dealt with and replaced in time, voltage fluctuations, unstable output power, and other conditions will occur; the unstable performance of the lithium battery pack will lead to equipment failures and even endanger life safety.

[0003] However, the problems of over-discharge and battery aging always exist; in the prior art, voltage monitoring methods are used for monitoring, but the battery voltage is affected by various factors such as temperature, charge and discharge rate, and battery aging degree, and the measured value is inaccurate, which is prone to misjudgment, while mechanical monitoring means are often ignored;

[0004] In addition, in the production and storage links, some lithium batteries are accidentally impacted by external forces such as collisions and cannot meet the qualified standards; the weight of the battery pack subjected to impacts or squeezes decreases, and the actual available capacity is often lower than the normal standard, and the capacity attenuation rate is faster when the number of uses increases; however, in the prior art, workers do not carefully detect when installing lithium batteries, and even if they detect, it is time-consuming and laborious, increasing the labor intensity.

[0005] Therefore, the present invention proposes an energy storage lithium battery cabinet supporting capacity expansion, which can automatically monitor whether the lithium battery is aging or over-discharged, perform safety maintenance when the lithium battery is overcharged, and can also automatically detect whether the lithium battery is a qualified product during installation, so as to solve the above problems. Summary of the Invention

[0006] In view of this, the technical problem to be solved by the present invention is to propose an energy storage lithium battery cabinet supporting capacity expansion to solve the problems existing in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solution: An energy storage lithium battery cabinet supporting capacity expansion, comprising: a cabinet body, an electric telescopic rod, a solution cavity, and a battery carrier plate. The electric telescopic rod is fixedly connected to the cabinet body, the solution cavity is fixedly connected to the upper end of the electric telescopic rod, and the battery carrier plate is vertically slidably connected to the solution cavity. It further includes: a first component, a second component, and a third component. The first component and the third component are in the same vertical plane, and the second component is located below the third component;

[0008] The first component mainly serves as the support premise for the operation of the second component and the third component;

[0009] The second component is mainly used to detect over-discharge and battery aging of the lithium battery and assist in its replacement;

[0010] The third component is mainly used to give feedback on the qualification of the weight of the initial energy storage battery.

[0011] Preferably, the first component includes a main body seat fixedly connected in the solution cavity, a pressing member fixedly connected to the bottom surface of the battery carrier plate, and a moving piece fixedly connected to the bottom surface of the pressing member.

[0012] Preferably, a piston-type air chamber tube is fixedly connected to the bottom end of the moving piece, the piston-type air chamber tube is fixedly connected to the main body seat at the bottom end, and a spring is fixedly connected inside the piston-type air chamber tube.

[0013] Preferably, the second component includes a flow strip opening formed at the bottom of the main body seat, a transfer pipe fixedly inserted and connected at the bottom of the main body seat, a first vertical groove vertically formed on the main body seat, and a sliding strip plate A vertically inserted in the first vertical groove, and the top end of the sliding strip plate A is fixedly connected to the pressing member.

[0014] Preferably, a round pipe opening is formed on the transfer pipe, a square through opening is formed on the sliding strip plate A, and a pump is fixedly connected inside the transfer pipe.

[0015] Preferably, the third component includes a second vertical groove formed on the main body seat, a sliding strip plate B vertically inserted in the second vertical groove, a guide rail member fixedly connected in the second vertical groove, and a driving screw fixedly connected to the inner wall of the second vertical groove.

[0016] Preferably, a sliding member is threadedly connected to the driving screw, the sliding member is slidably fitted in the guide rail member, a support rod is fixedly connected to the sliding member, a telescopic sleeve rod is rotatably connected to the bottom end of the sliding strip plate B, and a magnetic attraction sleeve sliding column is sleeved on the telescopic sleeve rod, and the magnetic attraction sleeve sliding column is rotatably connected to the upper end of the support rod.

[0017] Preferably, a main contact piece is fixedly connected to one end of the telescopic sleeve rod far away from the hinge of the sliding strip plate B, and an electric contact strip group is fixedly connected to the bottom side wall of the sliding strip plate B.

[0018] Preferably, one end of the transfer pipe located inside the main body seat is designed as a semi-circular pipe opening.

[0019] Preferably, the telescopic sleeve rod includes two hollow tubes with different diameters and a spring body.

[0020] Compared with the prior art, the present invention provides a lithium battery cabinet that supports capacity expansion and has the following beneficial effects:

[0021] 1. The present invention can effectively perform mechanical monitoring and feedback when the lithium battery is over-discharged or aged through the design of the second component; specifically, when the lithium battery is over-discharged or aged and the weight decreases, the circular tube opening is indirectly used in conjunction with the square opening to change the size of the overlapping flow openings. Due to the manifestation of the law of conservation of mass in fluid mechanics, it can be seen that the gradually smaller overlapping flow openings will increase the flow rate of the coolant flowing in the transfer pipe, and provide early warning feedback under the detection of the flow rate sensor therein. At the same time, the relevant personnel can also make judgments by observing the flow rate of the coolant in the transfer pipe. This mechanical transmission is different from the voltage monitoring method used in the prior art for monitoring through the feedback design of the water flow rate. Since the battery voltage is affected by multiple factors such as temperature, charge and discharge rate, and battery aging degree, the measured value is inaccurate and it is easy to make misjudgments, thereby improving the monitoring perfection of lithium battery over-discharge and battery aging.

[0022] 2. The present invention achieves multiple beneficial effects through the provision of a coolant. On the one hand, it can use the change in the coolant flow rate to feedback abnormal conditions of the lithium battery due to over-discharge or battery aging. On the other hand, when the lithium battery generates high temperature due to over-discharge, the coolant can play an auxiliary heat dissipation function, effectively preventing the surface temperature of the over-discharged lithium battery from being too high, thereby improving the temperature control level of the overall equipment. In this way, even if there is a risk of damage to the lithium battery due to overheating, the overall continuous and stable operation of the equipment can be guaranteed, greatly enhancing the reliability and safety of the equipment operation, extending the service life of the equipment and maintaining its efficient working state.

[0023] 3. Under normal circumstances, the temperature of lithium batteries will rise in two situations; one is the temperature rise caused by excessive discharge; the other is the temperature rise caused by the equipment being in high-load operation; among them, the design of the piston-type air cavity tube that provides the movable plate with up and down movement can not only ensure the normal operation of the first component, but also, because it contains gas inside, when the temperature of the lithium battery rises and the battery support plate absorbs heat, causing the coolant temperature to rise, the gas in the piston-type air cavity tube will expand, thereby indirectly providing a synergistic effect for increasing the coolant flow rate through the second component, and effectively performing adaptive heat dissipation for the normal temperature rise during over-discharge of non-lithium batteries, greatly increasing the overall working perfection of the equipment, ensuring that the equipment can operate stably under different working conditions, improving the reliability and durability of the equipment, and enabling the equipment to maintain an efficient and stable heat dissipation mechanism when facing complex working environments and operating conditions, thereby ensuring the safe and stable operation of each component and the overall equipment.

[0024] 4. Through the design of the third component, the present invention can efficiently provide feedback on the weight compliance of the initial energy storage battery. Specifically, the weight of the lithium battery is ingeniously converted into the distance that the sliding strip plate B moves downward. Then, by means of the lever principle, precise feedback on the weight compliance of the lithium battery is achieved through the contact between the main contact piece and different contact strips in the electric contact strip group. This design can effectively avoid the situation where the lithium battery fails to meet the standard due to external impacts such as collisions during production and storage. It can effectively prevent problems such as the weight of the battery pack decreasing and the actual available capacity being lower than the normal standard due to impacts or squeezes, ensuring that the capacity attenuation rate of the lithium battery is within a stable and reasonable range. Moreover, it can also successfully avoid the situation in the prior art where workers are not careful during the installation of lithium batteries, and the detection is time-consuming, laborious, and increases the labor intensity, greatly improving the efficiency and accuracy of product quality control.

[0025] 5. The present invention adopts a design scheme of adjusting the position of the magnetically sleeved sliding column on the telescopic sleeve rod. Among them, the telescopic sleeve rod plays the role of a lever. When the magnetically sleeved sliding column moves on the telescopic sleeve rod, it is like changing the fulcrum of the lever. In this way, the distance that the right end moves upward due to the downward pressure on the left end of the lever can be indirectly changed. That is to say, even if the weight of the battery decreases slightly, through the adjustment of the lever fulcrum, this tiny weight change can be accurately feedback. This design significantly improves the perfection of the initial weight detection of the battery, making the detection mechanism more sensitive and accurate. It can capture relevant information under extremely small weight difference changes, enhancing the reliability of battery quality control, helping to promptly discover batteries with abnormal weights due to external impacts and other factors, thereby improving the quality level of the overall battery product and ensuring the safety and stability of the subsequent use link. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is the main structure diagram of the present invention;

[0027] Figure 2 is the related structure diagram of the electric telescopic rod, solution cavity, and battery carrier plate in the present invention;

[0028] Figure 3 is the related structure diagram of the solution cavity and battery carrier plate in the present invention;

[0029] Figure 4 is the related structure diagram of the main body seat, circulation strip opening, and transfer pipe in the present invention;

[0030] Figure 5 is the related structure diagram after the main body seat of the present invention is sectioned;

[0031] Figure 6 is the present invention Figure 5 enlarged view of the structure at A in;

[0032] Figure 7 For the present invention Figure 5 Enlarged view of the structure at position B in the present invention;

[0033] Figure 8 Structural diagram related to the operation of the second component in the present invention;

[0034] Figure 9 Structural diagram related to the first component and the second component in the present invention;

[0035] Figure 10 Disassembly diagram of the main structure of the present invention;

[0036] Figure 11 Structural diagram related to the third component in the present invention;

[0037] Figure 12 External view of the main structure of the present invention.

[0038] In the figure:

[0039] 1. Cabinet body;

[0040] 201. Electric telescopic rod; 202. Solution cavity; 203. Battery carrier board;

[0041] 3. First component; 301. Main body seat; 302. Pressing part; 303. Moving piece; 304. Piston type air cavity tube; 305. Spring;

[0042] 4. Second component; 401. Flow strip opening; 402. Transfer pipe; 403. First vertical groove; 404. Sliding strip plate A; 405. Round pipe opening; 406. Square through opening; 407. Pump;

[0043] 5. Third component; 501. Second vertical groove; 502. Sliding strip plate B; 503. Guide rail part; 504. Driving screw; 505. Sliding part; 506. Support rod; 507. Telescopic sleeve rod; 508. Magnetic adsorption sleeve sliding column; 509. Main contact piece; 510. Electric contact strip group. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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.

[0045] Next, the present invention will be further described in detail according to the drawings and embodiments.

[0046] Embodiment

[0047] Please refer toFigures 1 to 3 , Figure 5 、 Figure 9 、 Figure 12 as shown in:

[0048] To solve the problems mentioned in the technical solution, an embodiment of the present application provides an energy storage lithium battery cabinet supporting capacity expansion, including: a cabinet body 1, an electric telescopic rod 201, a solution cavity 202, and a battery carrier plate 203. The electric telescopic rod 201 is fixedly connected to the cabinet body 1, the solution cavity 202 is fixedly connected to the upper end of the electric telescopic rod 201, and the battery carrier plate 203 is vertically slidably connected to the solution cavity 202. It further includes: a first component 3, a second component 4, and a third component 5. The first component 3 and the third component 5 are in the same vertical plane, and the second component 4 is located below the third component 5;

[0049] The first component 3 mainly serves as a support prerequisite for the operation of the second component 4 and the third component 5. The first component 3 includes a main body seat 301 fixedly connected to the solution cavity 202. A pressing member 302 is fixedly connected to the bottom surface of the battery carrier plate 203. A moving piece 303 is fixedly connected to the bottom surface of the pressing member 302. A piston-type air chamber tube 304 is fixedly connected to the bottom end of the moving piece 303. The bottom end of the piston-type air chamber tube 304 is fixedly connected to the main body seat 301. A spring 305 is fixedly connected inside the piston-type air chamber tube 304.

[0050] Among them:

[0051] The electric telescopic rod 201 can adjust the height between adjacent solution cavities 202 according to the number of lithium batteries and usage conditions.

[0052] A coolant is provided in the solution cavity 202, and the coolant can be driven by a pump 407 to flow between the solution cavity 202 and the transfer pipe 402 at a certain speed.

[0053] The battery carrier plate 203 is mainly used for placing lithium batteries.

[0054] The first component 3 mainly serves as a support prerequisite for the operation of the second component 4 and the third component 5.

[0055] For a further embodiment: Please refer to Figure 4 、 Figure 5 、 Figures 7 to 10 as shown in:

[0056] The second component 4 is mainly used to detect over-discharge and battery aging of a lithium battery and assist in its replacement; the second component 4 includes a flow bar opening 401 formed at the bottom of the main body seat 301, a transfer pipe 402 is fixedly connected by insertion at the bottom of the main body seat 301, a first vertical groove 403 is vertically formed on the main body seat 301, a sliding strip plate A404 is vertically inserted into the first vertical groove 403, the top end of the sliding strip plate A404 is fixedly connected to the pressing member 302, a circular pipe opening 405 is formed on the transfer pipe 402, a square through opening 406 is formed on the sliding strip plate A404, and a pump 407 is fixedly connected inside the transfer pipe 402.

[0057] Among them:

[0058] The second component 4 is mainly used to detect over-discharge and battery aging of a lithium battery and assist in its replacement.

[0059] One end of the transfer pipe 402 located inside the main body seat 301 has only half of the pipe opening, which is mainly used for the coolant to enter the main body seat 301 from the flow bar opening 401 and finally enter the transfer pipe 402 through this half of the pipe opening.

[0060] A flow rate sensor is provided in the transfer pipe 402, which is mainly used to monitor the flow rate of the coolant.

[0061] The sliding strip plate A404 is adapted to the first vertical groove 403. The bottom of the sliding strip plate A404 is mainly used to block the circular pipe opening 405, and the middle part of it is mainly used to prevent the coolant from flowing upward and affecting the flow rate of the pump 407 for driving the coolant.

[0062] The circular pipe opening 405 and the square through opening 406 are used in combination to change the size of their overlapping flow openings.

[0063] The pump 407 is mainly used to drive the coolant in the solution cavity 202 and the transfer pipe 402 so that it flows.

[0064] It should be noted that:

[0065] Continuity equation:

[0066] The continuity equation is the manifestation form of the law of conservation of mass in fluid mechanics. For an incompressible fluid, when the pump speed of the water pump is constant, that is, the volume of the fluid flowing through per unit time is constant. If the pipe opening becomes smaller and the cross-sectional area decreases, according to the continuity equation, the flow rate must increase to ensure that the volume of the fluid flowing through per unit time remains unchanged.

[0067] In the present invention, the water pumping speed of the pump 407 remains unchanged. When changing the size of the overlapping flow ports by the cooperation of the circular pipe orifice 405 and the square through port 406, the smaller the connected pipe orifice, the faster the flow rate will be. That is, the decrease in weight causes the overlapping flow ports to become smaller, and the flow rate of the coolant driven by the pump 407 will increase.

[0068] A further embodiment: Please refer to Figure 3 、 Figure 5 、 Figure 6 、 Figure 10 、 Figure 11 as shown in

[0069] The third component 5 is mainly used to give a qualification feedback on the weight of the initial energy storage battery. The third component 5 includes a second vertical groove 501 opened on the main body seat 301. A sliding strip plate B502 is vertically inserted into the second vertical groove 501. A guide rail member 503 is fixedly connected in the second vertical groove 501. A driving screw 504 is fixedly connected to the inner wall of the second vertical groove 501. A sliding member 505 is threadedly connected to the driving screw 504. The sliding member 505 is slidably adapted to the guide rail member 503. A support rod 506 is fixedly connected to the sliding member 505. The bottom end of the sliding strip plate B502 is rotatably connected to a telescopic sleeve rod 507. A magnetic suction sleeve sliding column 508 is sleeved on the telescopic sleeve rod 507. The magnetic suction sleeve sliding column 508 is rotatably connected to the upper end of the support rod 506. One end of the telescopic sleeve rod 507 away from the hinged end of the sliding strip plate B502 is fixedly connected to a main contact piece 509. An electric contact strip group 510 is fixedly connected to the bottom side wall of the sliding strip plate B502.

[0070] Among them:

[0071] The third component 5 is mainly used to give a qualification feedback on the weight of the initial energy storage battery.

[0072] The sliding strip plate B502 is adapted to the second vertical groove 501.

[0073] The telescopic sleeve rod 507 is composed of two hollow tubes with different diameters and a spring body, and the surface of the telescopic sleeve rod 507 is made of magnetic material.

[0074] The telescopic sleeve rod 507 is equivalent to a lever. The magnetic suction sleeve sliding column 508 moves on the telescopic sleeve rod 507, which is equivalent to changing the fulcrum of the lever. Thereby, indirectly changing the distance that the right end lever moves upward passively due to the downward pressure of the left end of the lever. That is, even if the battery weight decreases slightly, due to the adjustment of the lever fulcrum, the weight change can also be fed back, thereby improving the perfection of the initial weight detection of the battery.

[0075] There is an electrical connection relationship between the main contact piece 509, the electrical contact strip group 510 and the device master control. The main contact piece 509 is mainly used in cooperation with the electrical contact strip group 510. The electrical contact strip group 510 is composed of multiple electrical contact strips. When the main contact piece 509 contacts different electrical contact strips, indirect feedback can be used to judge whether the battery weight on the battery carrier plate 203 meets the usage standard through the master control at this time.

[0076] The working principle of all the contents in the above embodiments is as follows:

[0077] The following is the working process of the first component 3:

[0078] During use, the lithium battery installer will place the lithium battery on the battery carrier plate 203 and fix it effectively. Under the action of the self-weight of the lithium battery, the battery carrier plate 203 will move downward in the solution cavity 202. During the downward movement of the battery carrier plate 203, the pressing member 302 located at the bottom surface of the battery carrier plate 203 will drive the moving piece 303 to slide downward in the main body seat 301 at this time. Further, the piston-type air chamber tube 304 will be pressed at this time, and the spring 305 in the piston-type air chamber tube 304 will be gradually compressed;

[0079] The above working process please Figures 1 to 3 , Figure 5 , Figure 9 , Figure 12 .

[0080] The following is the working process of the second component 4:

[0081] Under normal circumstances, the coolant in the solution cavity 202 will pass through the flow strip opening 401 opened on the main body seat 301, and the coincidence opening of the circular pipe opening 405 and the square through opening 406 opened on the sliding strip plate A404 through the transfer pipe 402, and under the action of the pump 407, the coolant will be circulated in the solution cavity 202 and the transfer pipe 402 to perform normal heat dissipation work;

[0082] Furthermore, after the lithium battery is installed, if the lithium battery shows over-discharge or battery aging during use, the weight of the lithium battery will decrease. At this time, reference can be made to Attachment Figure 8 to Attachment Figure 10Furthermore, when the weight of the lithium battery decreases, the previously compressed, inflated piston-type air cavity tube 304 and the spring 305 will push the lower pressure piece 302 upward through the moving sheet 303 under the effect of the lithium battery becoming lighter. At this time, during the upward movement of the lower pressure piece 302, the overlapping flow opening composed of the circular tube opening 405 and the square opening 406 will gradually become smaller. Since it is known that the pumping speed of the coolant by the pump 407 remains unchanged, the flow rate of the coolant will increase when the flow opening gradually becomes smaller. At this time, the flow rate sensor in the transfer tube 402 will monitor the flow rate change and send a signal to the main control to perform early warning. At the same time, the staff can also judge whether the lithium battery installed on the battery support plate 203 is over-discharged or battery aging by observing the flow rate in the transfer tube 402.

[0083] Furthermore, the design of the second component 4 can effectively perform mechanical monitoring and feedback when the lithium battery is over-discharged or aged. Specifically, when the lithium battery is over-discharged or aged and the weight decreases, the circular tube opening 405 is indirectly used in conjunction with the square opening 406 to change the size of the overlapping flow openings. Due to the manifestation of the law of conservation of mass in fluid mechanics, it can be seen that the gradually smaller overlapping flow openings will increase the flow rate of the coolant flowing in the transfer pipe 402, and provide early warning feedback under the detection of the flow rate sensor therein. At the same time, the relevant personnel can also make a judgment by observing the flow rate of the coolant in the transfer pipe 402. This mechanical transmission is different from the voltage monitoring method used in the prior art for monitoring through the feedback design of the water flow rate. Since the battery voltage is affected by multiple factors such as temperature, charge and discharge rate, and battery aging degree, the measurement value is inaccurate and it is easy to make a misjudgment, thereby improving the monitoring perfection of lithium battery over-discharge and battery aging.

[0084] Furthermore, through the setting of the coolant, multiple beneficial effects are achieved; on the one hand, the change in the coolant flow rate can be used to feedback abnormal conditions of the lithium battery due to excessive discharge or battery aging; on the other hand, when the lithium battery generates high temperature due to excessive discharge, the coolant can play an auxiliary heat dissipation function, effectively preventing the surface temperature of the over-discharged lithium battery from being too high, and improving the temperature control level of the overall equipment; in this way, even if there is a risk of damage to the lithium battery due to overheating, the overall continuous and stable operation of the equipment can be guaranteed, which greatly enhances the reliability and safety of the equipment operation, extends the service life of the equipment and maintains its efficient working state.

[0085] It should be noted that under normal circumstances, the temperature of the lithium battery will increase under two conditions; firstly, the temperature rise caused by over-discharge problems; secondly, the temperature rise caused by the device running at high load; among them, the design of the piston-type air chamber tube 304 that provides up and down movement for the moving piece 303 can ensure the normal operation of the first component 3. At the same time, because it contains gas inside, when the temperature of the lithium battery rises and the battery carrier plate 203 absorbs heat, causing the temperature of the coolant to rise, the gas in the piston-type air chamber tube 304 will expand. Thus, indirectly, through the second component 4, it provides a synergistic effect to increase the coolant flow rate, effectively performing adaptive heat dissipation for the normal temperature rise during non-over-discharge of the lithium battery, greatly enhancing the overall work perfection of the device, ensuring the stable operation of the device under different working conditions, improving the reliability and durability of the device, enabling the device to maintain an efficient and stable heat dissipation mechanism when facing complex working environments and operating states, and thus ensuring the safe and stable operation of each component and the overall device.

[0086] Please refer to the above working process Figure 4 、 Figure 5 、 Figures 7 to 10 。

[0087] The following is the working process of the third component 5:

[0088] Furthermore, it can be referred to in the appendix Figure 5 and the appendix Figure 11 When the lithium battery is placed on the battery carrier plate 203, the sliding strip plate B502 will also move downward in the same way as the sliding strip plate A404. Further, the sliding strip plate B502 moving downward in the second vertical groove 501 will drive the rotatably connected telescopic rod 507 to rotate with the magnetically sleeved sliding column 508 as the rotation fulcrum. During the rotation, the main contact piece 509 at one end of the magnetically sleeved sliding column 508 will slide on the inner wall of the sliding strip plate B502 to contact the electrical contact strips at different heights in the electrical contact strip group 510;

[0089] Furthermore, if you want to change the position of the magnetically sleeved sliding column 508 on the telescopic rod 507, you only need to control the rotation of the driving screw 504, so as to drive the support rod 506 to change its position through the movement of the sliding part 505 in the guide rail part 503. At this time, the position of the magnetically sleeved sliding column 508 rotatably connected to the support rod 506 on the telescopic rod 507 will also change;

[0090] Furthermore, through the design of the third component 5, the weight qualification of the initial energy storage battery can be efficiently feedback; specifically, the weight of the lithium battery is ingeniously converted into the distance that the sliding strip plate B502 moves downward, and then by means of the lever principle, the accurate feedback on the weight qualification of the lithium battery is realized through the contact between the main contact piece 509 and different contact strips in the electric contact strip group 510; this design can effectively avoid the situation that the lithium battery fails to meet the standard due to external impacts such as collisions during production and storage; effectively prevent the problems that the battery pack weight decreases and the actual available capacity is lower than the normal standard due to being impacted or squeezed, ensuring that the capacity attenuation rate of the lithium battery is in a stable and reasonable range; and, it can also successfully avoid the situation in the prior art that workers are not careful enough in detecting when installing lithium batteries, as well as the time-consuming and laborious detection and increased labor intensity, greatly improving the efficiency and accuracy of product quality control.

[0091] Furthermore, a design scheme of adjusting the position of the magnetically sleeved slide column 508 on the telescopic sleeve rod 507 is adopted; among them, the telescopic sleeve rod 507 plays the role of a lever. When the magnetically sleeved slide column 508 moves on the telescopic sleeve rod 507, it is like changing the fulcrum of the lever; in this way, the distance that the right end moves upward due to the downward pressure on the left end of the lever can be indirectly changed; that is to say, even if the battery weight decreases slightly, through the adjustment of the lever fulcrum, this tiny weight change can be accurately feedback; this design significantly improves the perfection of the initial battery weight detection, making the detection mechanism more sensitive and accurate; it can capture relevant information under extremely small weight difference changes, enhancing the reliability of battery quality control, helping to timely discover those batteries with abnormal weights due to external impacts and other factors, thereby improving the quality level of the overall battery product and ensuring the safety and stability of the subsequent use link.

[0092] Please refer to the above working process Figure 3 、 Figure 5 、 Figure 6 、 Figure 10 、 Figure 11 。

[0093] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0094] 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 lithium battery cabinet supporting capacity expansion, comprising: A cabinet, an electric telescopic rod, a solution cavity, and a battery support plate, wherein the electric telescopic rod is fixedly connected to the cabinet, the solution cavity is fixedly connected to the upper end of the electric telescopic rod, and the battery support plate is vertically slidably connected to the solution cavity, characterized in that it also includes: a first component, a second component, and a third component, wherein the first component and the third component are in the same vertical plane, and the second component is located below the third component; the first component serves as a supporting premise for the second component and the third component to work; the second component is used to detect over-discharge and battery aging of lithium batteries and assist in their replacement; the third component is used to provide qualified feedback on the weight of the initial energy storage battery; The first component includes a main body seat fixedly connected in the solution cavity, a pressing piece fixedly connected to the bottom surface of the battery support plate, and a moving sheet fixedly connected to the bottom surface of the pressing piece; The bottom end of the moving piece is fixedly connected with a piston-type air cavity tube, the bottom end of the piston-type air cavity tube is fixedly connected to the main body seat, and a spring is fixedly connected inside the piston-type air cavity tube; The second component includes a flow strip opening opened at the bottom of the main body seat, a transfer pipe is inserted and fixedly connected to the bottom of the main body seat, a first vertical groove is vertically opened on the main body seat, a sliding strip A is vertically inserted in the first vertical groove, and the top of the sliding strip A is fixedly connected to the lower pressing piece; A round pipe opening is provided on the transfer pipe, a square opening is provided on the sliding strip A, and a pump is fixedly connected in the transfer pipe; The third component includes a second vertical groove provided on the main body seat, a sliding strip B is vertically inserted into the second vertical groove, a guide rail is fixedly connected to the second vertical groove, and a driving screw is fixedly connected to the inner wall of the second vertical groove; A sliding part is threadedly connected to the driving screw rod, and the sliding part is slidably adapted in the guide rail part. A support rod is fixedly connected to the sliding part. The bottom end of the sliding strip B is rotatably connected to a telescopic sleeve rod, and a magnetic sleeve sliding column is sleeved on the telescopic sleeve rod, and the magnetic sleeve sliding column is rotatably connected to the upper end of the support rod.

2. The energy storage lithium battery cabinet supporting capacity expansion according to claim 1, wherein: One end of the telescopic sleeve rod which is away from the hinge of the sliding strip plate B is fixedly connected with a main contact piece, and the bottom side wall of the sliding strip plate B is fixedly connected with an electric contact strip group.

3. The energy storage lithium battery cabinet supporting capacity expansion according to claim 2, wherein: One end of the transfer pipe located inside the main body seat is designed as a semicircular ring pipe opening.

4. The energy storage lithium battery cabinet supporting capacity expansion according to claim 3, wherein: The telescopic sleeve rod comprises two hollow tubes with different diameters and a spring body.

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