Energy storage lithium battery cabinet supporting capacity expansion

Abstract

The invention discloses an energy storage lithium battery cabinet supporting capacity expansion, and relates to the technical field of energy storage cabinets, the energy storage lithium battery cabinet comprises a cabinet body, an electric telescopic rod, a solution cavity and a battery supporting plate, the electric telescopic rod is fixedly connected with the cabinet body, the solution cavity is fixedly connected to the upper end of the electric telescopic rod, the battery supporting plate is vertically and slidably connected to the solution cavity, and the battery supporting plate is fixedly connected to the cabinet body. According to the invention, when the weight of the lithium battery is reduced due to over-discharge and aging of the battery, the round pipe orifice and the square through orifice are indirectly matched for use, so that the size of the overlapped circulating orifice is changed, and due to the expression form of the law of conservation of mass in fluid mechanics, the effect of mass conservation is improved. The gradually-decreased coincident circulation openings enable the flow speed of cooling liquid flowing in the transmission pipe to be increased, early warning feedback is carried out under detection of a flow speed sensor in the coincident circulation openings, and the mechanical transmission is different from a monitoring mode adopting a voltage monitoring method in the prior art through the design of a feedback mode of the water flow speed. And the monitoring completeness of the lithium battery over-discharge and battery aging is improved.

Description

Technical Field

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

[0002] In today's electronic devices, energy storage systems and power equipment applications, lithium batteries are widely used as key energy storage units. Once a lithium battery pack is over-discharged, the structure of the electrode material will be damaged, and even cause a short circuit inside the battery; when the power is excessively released, the electrode material will undergo irreversible structural changes. If it is not handled and replaced in time, voltage fluctuations and unstable output power will occur; unstable performance of lithium battery packs can lead to equipment failures and even endanger life safety.

[0003] However, the problems of over-discharge and battery aging always exist. The existing technology uses voltage monitoring method for monitoring, but the battery voltage is affected by many factors such as temperature, charge and discharge rate, battery aging degree, etc., the measurement value is inaccurate and prone to misjudgment, while mechanical monitoring methods are often ignored.

[0004] In addition, during the production and storage process, some lithium batteries are impacted by external forces such as collisions due to careless operation and fail to meet the qualified standards; the weight of the battery pack that is hit or squeezed decreases, and the actual available capacity is often lower than the normal standard, and the capacity decays faster with the increase in the number of uses; but in the existing technology, workers do not carefully inspect the lithium batteries when installing them, and even if they do, it is time-consuming and labor-intensive, increasing labor intensity.

[0005] Therefore, the present invention proposes an energy storage lithium battery cabinet that can automatically monitor whether the lithium battery is aged or over-discharged, perform safety maintenance when the lithium battery is overcharged, and automatically detect whether the lithium battery is qualified during installation and supports capacity expansion, 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 that supports capacity expansion to solve the problems existing in the prior art.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a lithium battery cabinet for energy storage supporting capacity expansion, comprising: a cabinet, an electric telescopic rod, a solution cavity, and a battery carrier 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 carrier plate is vertically slidably connected to the solution cavity, and further comprising: 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;

[0008] The first component mainly serves as a supporting premise for the second and third components;

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

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

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

[0012] Preferably, the bottom end of the movable sheet 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.

[0013] Preferably, the second component includes a flow strip opening opened at the bottom of the main body seat, a transfer tube 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 pressure piece.

[0014] Preferably, a circular pipe opening is provided on the transfer pipe, a square opening is provided on the sliding strip A, and a pump is fixedly connected inside the transfer pipe.

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

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

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

[0018] Preferably, one end of the transfer tube located inside the main body seat is designed as a semicircular ring pipe opening.

[0019] Preferably, the telescopic sleeve comprises 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. The present invention can efficiently provide feedback on the weight eligibility of the initial energy storage battery through the design of the third component; specifically, the weight of the lithium battery is cleverly converted into the distance that the sliding strip B moves downward, and then with the help of the lever principle, accurate feedback on the weight eligibility of the lithium battery is achieved under the contact between the main contact piece and different contact strips in the electric contact strip group; this design can effectively avoid the situation in which the lithium battery fails to meet the standards due to external forces such as collisions caused by improper operation during production and storage; it can effectively prevent the problems of battery pack weight reduction and actual available capacity being lower than normal standards due to collisions or extrusions, thereby ensuring that the capacity decay rate of the lithium battery is in a stable and reasonable range; and it can also successfully avoid the situation in the prior art where workers are not careful when installing lithium batteries, and the inspection is time-consuming and labor-intensive, increasing labor intensity, thereby greatly improving the efficiency and accuracy of product quality control.

[0025] 5. The present invention adopts a design scheme for adjusting the position of the magnetic sleeve slide column on the telescopic sleeve rod; wherein, the telescopic sleeve rod plays the role of a lever, and when the magnetic sleeve slide 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 of the lever moves upward due to the downward pressure on the left end of the lever can be indirectly changed; that is, even if the battery weight decreases slightly, with the help of adjusting the fulcrum of the lever, this tiny weight change can be accurately fed back; this design significantly improves the perfection of the initial weight detection of the battery, making the detection mechanism more sensitive and accurate; relevant information can be captured under extremely small weight difference changes, thereby enhancing the reliability of battery quality control, and helping to promptly discover batteries with abnormal weight due to external force impact and other factors, thereby improving the quality level of the overall battery product and ensuring the safety and stability of subsequent use links. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0027] Figure 2 This is a structural diagram of the electric telescopic rod, solution cavity, and battery support plate in the present invention;

[0028] Figure 3 It is a structural diagram related to the solution cavity and the battery support plate in the present invention;

[0029] Figure 4 This is a structural diagram of the main body seat, flow strip port, and transfer tube of the present invention;

[0030] Figure 5 This is a relevant structural diagram after the main body seat of the present invention is cut;

[0031] Figure 6 For the present invention Figure 5 A magnified view of the structure at center;

[0032] Figure 7 For the present invention Figure 5 A magnified view of the structure at B in the middle;

[0033] Figure 8 This is a related structural diagram when the second component of the present invention is working;

[0034] Fig. 9 It is a related structural diagram of the first component and the second component in the present invention;

[0035] Fig.10 This is a disassembled diagram of the main structure of the present invention;

[0036] Fig.11 This is a structural diagram related to the third component of the present invention;

[0037] Fig.12 This is an appearance diagram of the main structure of the present invention.

[0038] In the figure:

[0039] 1. Cabinet;

[0040] 201, electric telescopic rod; 202, solution chamber; 203, battery support plate;

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

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

[0043] 5. The third component; 501. The second vertical groove; 502. The sliding strip B; 503. The guide rail; 504. The driving screw; 505. The sliding member; 506. The supporting rod; 507. The retractable sleeve rod; 508. The magnetic sleeve sliding column; 509. The main contact piece; 510. The electric contact strip group. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] The present invention is further described in detail below based on the accompanying drawings and embodiments.

[0046] Example

[0047] Please refer to Figures 1 to 3 , Figure 5 , Fig. 9 , Fig.12 As shown:

[0048] In order to solve the problems mentioned in the technical solution, the embodiment of the present application provides a lithium battery storage cabinet supporting capacity expansion, including: a cabinet 1, an electric telescopic rod 201, a solution cavity 202, and a battery support plate 203, the electric telescopic rod 201 is fixedly connected to the cabinet 1, the solution cavity 202 is fixedly connected to the upper end of the electric telescopic rod 201, and the battery support plate 203 is vertically slidably connected to the solution cavity 202, and also 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 supporting premise for the operation of the second component 4 and the third component 5; the first component 3 includes a main seat 301 fixedly connected in the solution cavity 202, a pressing piece 302 is fixedly connected to the bottom surface of the battery support plate 203, a moving piece 303 is fixedly connected to the bottom surface of the pressing piece 302, a piston-type air cavity tube 304 is fixedly connected to the bottom end of the moving piece 303, the bottom end of the piston-type air cavity tube 304 is fixedly connected to the main seat 301, and a spring 305 is fixedly connected inside the piston-type air cavity tube 304.

[0050] in:

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

[0052] The solution chamber 202 is provided with a cooling liquid, which can be driven by a pump 407 to flow between the solution chamber 202 and the transfer tube 402 at a certain speed.

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

[0054] The first component 3 mainly serves as a supporting premise for the second component 4 and the third component 5 to work.

[0055] For further examples, please refer to Figure 4 , Figure 5 , Figures 7 to 10 As shown:

[0056] The second component 4 is mainly used to detect over-discharge and battery aging of lithium batteries, and assist in their replacement; the second component 4 includes a flow strip port 401 opened at the bottom of the main body seat 301, a transfer tube 402 is inserted and fixedly connected to the bottom of the main body seat 301, a first vertical groove 403 is vertically opened on the main body seat 301, a sliding strip A404 is vertically inserted in the first vertical groove 403, the top of the sliding strip A404 is fixedly connected to the lower pressure piece 302, a circular tube port 405 is opened on the transfer tube 402, a square opening 406 is opened on the sliding strip A404, and a pump 407 is fixedly connected in the transfer tube 402.

[0057] in:

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

[0059] The transfer tube 402 has only half of a tube opening at one end located inside the main seat 301 , which is mainly used for cooling liquid to enter the main seat 301 from the flow strip opening 401 and finally enter the transfer tube 402 through the half tube 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 A404 is adapted to the first vertical groove 403. The bottom of the sliding strip A404 is mainly used to block the circular pipe opening 405, and the middle is mainly used to prevent the coolant from flowing upwards and affecting the flow rate of the coolant driven by the pump 407.

[0062] The circular tube opening 405 is used in conjunction with the square opening 406 to change the size of the overlapping flow openings.

[0063] The pump 407 is mainly used to drive the coolant in the solution chamber 202 and the transfer tube 402 to make it flow.

[0064] It should be noted that:

[0065] Continuity equation:

[0066] The continuity equation is the expression of the law of conservation of mass in fluid mechanics. For incompressible fluids, when the pump speed is constant, that is, the volume of fluid flowing 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 fluid flowing per unit time remains unchanged.

[0067] In the present invention, the pumping speed of the pump 407 remains unchanged. When the size of the overlapping flow opening is changed in cooperation with the circular pipe opening 405 and the square opening 406, the smaller the connected pipe opening is, the faster the flow rate will be; that is, the weight reduction causes the overlapping flow opening to become smaller, and the flow rate of the coolant driven by the pump 407 will be accelerated.

[0068] For further examples, please refer to Figure 3 , Figure 5 , Figure 6 , Fig.10 , Fig.11 As shown:

[0069] The third component 5 is mainly used for providing qualified feedback on the weight of the initial energy storage battery. The third component 5 includes a second vertical slot 501 opened on the main seat 301, a sliding strip B502 is vertically inserted in the second vertical slot 501, a guide rail 503 is fixedly connected in the second vertical slot 501, a driving screw 504 is fixedly connected to the inner wall of the second vertical slot 501, a sliding member 505 is threadedly connected to the driving screw 504, and the sliding member 505 is slidably adapted to the guide rail 503. In the rail member 503, a support rod 506 is fixedly connected to the sliding member 505, and a retractable sleeve rod 507 is rotatably connected to the bottom end of the sliding strip B502. A magnetic sleeve sliding column 508 is sleeved on the retractable sleeve rod 507, and the magnetic sleeve sliding column 508 is rotatably connected to the upper end of the support rod 506. A main contact piece 509 is fixedly connected to the end of the retractable sleeve rod 507 away from the hinge of the sliding strip B502, and an electric contact strip group 510 is fixedly connected to the bottom side wall of the sliding strip B502.

[0070] in:

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

[0072] The sliding strip 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, and the magnetic 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 of the right end lever that is passively moved upward by the distance pressed down by the left end of the lever. That is, even if the weight of the battery drops slightly, the weight change can be fed back due to the adjustment of the fulcrum of the lever, thereby improving the perfection of the initial weight detection of the battery.

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

[0076] Everything in the above example works like this:

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

[0078] When in use, the lithium battery installer will place the lithium battery on the battery support plate 203 and effectively fix it. Under the weight of the lithium battery itself, the battery support plate 203 will move downward in the solution cavity 202. When the battery support plate 203 moves downward, the pressing piece 302 located on the bottom surface of the battery support plate 203 will slide downward in the main seat 301 with the moving sheet 303. Furthermore, the piston-type air cavity tube 304 will be pressed, and the spring 305 in the piston-type air cavity tube 304 will be gradually compressed.

[0079] Please Figures 1 to 3 , Figure 5 , Fig. 9 , Fig.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 circulation strip opening 401 opened on the main body seat 301, and the overlapping openings of the transfer tube 402 and the circular tube opening 405 and the square opening 406 opened on the sliding strip plate A404, and under the action of the pump 407, the coolant will circulate in the solution cavity 202 and the transfer tube 402, so as to perform normal heat dissipation work;

[0082] Furthermore, after the lithium battery is installed, if it is used, if the lithium battery is over-discharged or the battery is aged, the weight of the lithium battery will decrease. At this time, please refer to the attached Figure 8 To Attachment Fig.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 rise under two conditions; one is the temperature rise caused by excessive discharge problems; 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 304 that moves up and down for the movable sheet 303 can not only ensure the normal operation of the first component 3, but also, because it contains gas inside, when the temperature of the lithium battery rises and the battery support plate 203 absorbs heat, causing the coolant temperature to rise, the gas in the piston-type air cavity tube 304 will expand, thereby indirectly providing a synergistic effect for increasing the coolant flow rate through the second component 4, 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, so that the equipment can 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.

[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] For further information, please refer to the attached Figure 5 And attached Fig.11 When the lithium battery is placed on the battery support plate 203, the sliding strip B502 will also move downward like the sliding strip A404. Furthermore, the sliding strip B502 moving downward in the second vertical slot 501 will rotate with the rotatably connected retractable sleeve rod 507 using the magnetic sleeve slide column 508 as a rotation fulcrum. During the rotation, the main contact piece 509 at one end of the magnetic sleeve slide column 508 will slide on the inner wall of the sliding strip B502 to contact the electric contact strips of different heights in the electric contact strip group 510.

[0089] Furthermore, if the position of the magnetic sleeve slide post 508 on the telescopic sleeve rod 507 is to be changed, it is only necessary to control the driving screw 504 to rotate, so as to drive the support rod 506 to change its position through the movement of the sliding member 505 in the guide rail member 503. At this time, the position of the magnetic sleeve slide post 508 rotatably connected to the support rod 506 on the telescopic sleeve rod 507 will also change;

[0090] Furthermore, through the design of the third component 5, the weight compliance of the initial energy storage battery can be efficiently fed back; specifically, the weight of the lithium battery is cleverly converted into the distance that the sliding strip B502 moves downward, and then with the help of the lever principle, the main contact piece 509 and the different contact strips in the electric contact strip group 510 are in contact to achieve accurate feedback on the weight compliance of the lithium battery; this design can effectively avoid the situation in which the lithium battery fails to meet the standards due to external forces such as collisions caused by improper operation during production and storage; it can effectively prevent the problem of battery pack weight reduction and actual available capacity being lower than normal standards due to collisions or squeezing, thereby ensuring that the capacity decay rate of the lithium battery is in a stable and reasonable range; and it can also successfully avoid the situation in the prior art where workers are not careful when installing lithium batteries, and the inspection is time-consuming and labor-intensive, increasing labor intensity, thereby greatly improving the efficiency and accuracy of product quality control.

[0091] Furthermore, a design scheme is adopted for adjusting the position of the magnetic sleeve slide 508 on the telescopic sleeve rod 507; wherein, the telescopic sleeve rod 507 plays the role of a lever, and when the magnetic sleeve slide 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, even if the battery weight drops slightly, with the help of adjusting the fulcrum of the lever, this tiny weight change can be accurately fed back; 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, enhance the reliability of battery quality control, and help to promptly discover batteries with abnormal weight due to external force impact and other factors, thereby improving the quality level of the overall battery product and ensuring the safety and stability of subsequent use links.

[0092] Please refer to the above working process Figure 3 , Figure 5 , Figure 6 , Fig.10 , Fig.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. A lithium battery cabinet for energy storage supporting capacity expansion, comprising: A cabinet (1), an electric telescopic rod (201), a solution cavity (202), and a battery carrier plate (203), wherein the electric telescopic rod (201) is fixedly connected to the cabinet (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), and is characterized in that it also includes: a first component (3), a second component (4), and a third component (5), wherein 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); The first component (3) serves as a supporting premise for the operation of the second component (4) and the third component (5); The second component (4) is used to detect over-discharge and battery aging of the lithium battery and assist in its replacement; The third component (5) is used to provide conformity feedback on the weight of the initial energy storage battery.

2. According to claim 1, a lithium battery cabinet for energy storage supporting capacity expansion is characterized in that: The first component (3) comprises a main body seat (301) fixedly connected in the solution cavity (202), the bottom surface of the battery support plate (203) is fixedly connected with a pressing piece (302), and the bottom surface of the pressing piece (302) is fixedly connected with a moving sheet (303).

3. According to claim 2, a lithium battery cabinet for energy storage supporting capacity expansion is characterized in that: The bottom end of the movable sheet (303) is fixedly connected to a piston-type air cavity tube (304), the bottom end of the piston-type air cavity tube (304) is fixedly connected to the main body seat (301), and a spring (305) is fixedly connected inside the piston-type air cavity tube (304).

4. The energy storage lithium battery cabinet supporting capacity expansion according to claim 2 is characterized in that: The second component (4) includes a flow strip opening (401) opened at the bottom of the main body seat (301), a transfer tube (402) is inserted and fixedly connected to the bottom of the main body seat (301), a first vertical groove (403) is vertically opened on the main body seat (301), a sliding strip plate A (404) is vertically inserted in the first vertical groove (403), and the top end of the sliding strip plate A (404) is fixedly connected to the lower pressure piece (302).

5. The energy storage lithium battery cabinet supporting capacity expansion according to claim 4 is characterized in that: The transfer pipe (402) is provided with a circular pipe opening (405), the sliding strip A (404) is provided with a square opening (406), and a pump (407) is fixedly connected inside the transfer pipe (402).

6. The energy storage lithium battery cabinet supporting capacity expansion according to claim 1, characterized in that: The third component (5) includes a second vertical groove (501) provided on the main body seat (301), a sliding strip B (502) is vertically inserted into the second vertical groove (501), a guide rail member (503) is fixedly connected to the second vertical groove (501), and a driving screw (504) is fixedly connected to the inner wall of the second vertical groove (501).

7. The energy storage lithium battery cabinet supporting capacity expansion according to claim 6 is characterized in that: The driving screw rod (504) is threadedly connected with a sliding member (505), and the sliding member (505) is slidably adapted in the guide rail member (503). The sliding member (505) is fixedly connected with a support rod (506). The bottom end of the sliding strip B (502) is rotatably connected with a telescopic sleeve rod (507), and the telescopic sleeve rod (507) is sleeved with a magnetic sleeve sliding column (508), and the magnetic sleeve sliding column (508) is rotatably connected to the upper end of the support rod (506).

8. The energy storage lithium battery cabinet supporting capacity expansion according to claim 7, characterized in that: One end of the retractable sleeve rod (507) away from the hinged end of the sliding strip plate B (502) is fixedly connected to a main contact piece (509), and the bottom side wall of the sliding strip plate B (502) is fixedly connected to an electric contact strip group (510).

9. The energy storage lithium battery cabinet supporting capacity expansion according to claim 4, characterized in that: One end of the transfer tube (402) located inside the main body seat (301) is designed as a semicircular tube opening.

10. The energy storage lithium battery cabinet supporting capacity expansion according to claim 7, characterized in that: The telescopic sleeve rod (507) comprises two hollow tubes with different diameters and a spring body.

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