An industrial and commercial energy storage lithium battery module with automatic power-off function in case of overload

Abstract

The present invention discloses an industrial and commercial energy storage lithium battery module with an overload automatic power-off function, and particularly relates to the technical field of lithium battery modules. It comprises a cabinet body, the cabinet body is hinged with a mirror-image cabinet door, the cabinet body is fixed with a mirror-image first connecting frame distributed in a rectangular array, the adjacent and mirror-image first connecting frames are commonly fixed with a fixed frame, the fixed frame is fixed with four first L-shaped frames, and lithium batteries are arranged between the four first L-shaped frames. The present invention adopts a method of replacing the existing circuit breaker, adding a "new electrical connection mechanism" between the lithium battery and the external device, so that the lithium battery and the external device can maintain "electrical connection" and achieve the effect of "circuit breaking", thereby replacing the existing circuit breaker and further avoiding a series of problems caused by the process of replacing the circuit breaker, achieving the effect of disconnecting the electrical connection of the existing circuit breaker while also being reusable.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery modules, and in particular to an industrial and commercial energy storage lithium battery module with an overload automatic power-off function. Background Art

[0002] Industrial and commercial energy storage lithium battery modules are high-efficiency, high-reliability energy storage units designed specifically for industrial and commercial applications. These modules are typically composed of multiple lithium-ion batteries connected in series and parallel. They are primarily used to store electricity generated from renewable energy sources (such as solar photovoltaic panels and wind turbines) or grid electricity, and release it when needed, thereby achieving the purpose of "peak shaving and valley filling" or completely off-grid power supply.

[0003] During the use of lithium batteries in existing industrial and commercial energy storage lithium battery modules, when the energy consumption of external equipment connected to the industrial and commercial energy storage lithium battery module exceeds the maximum safe output current of the lithium batteries in the industrial and commercial energy storage lithium battery module, the circuit breaker in the industrial and commercial energy storage lithium battery module will disconnect the electrical connection between the lithium batteries in the industrial and commercial energy storage lithium battery module and the external equipment. However, after the circuit breaker disconnects the electrical connection between the two, if the staff wants to reconnect the two electrically, they need to remove the circuit breaker that has completed its function and install a new circuit breaker to the required work position.

[0004] When dismantling an old circuit breaker or installing a new one, improper operation by workers may cause mechanical damage, such as damage to cable contacts, damage to other electrical components, or physical damage to the circuit breaker itself. These accidents not only increase the maintenance time of workers, but also threaten their safety. Summary of the Invention

[0005] In order to solve the problem that after the circuit breaker in the industrial and commercial energy storage lithium battery module is activated, accidents may occur during the maintenance and replacement of the circuit breaker by the staff, which will increase the maintenance time of the staff. An industrial and commercial energy storage lithium battery module with an overload automatic power-off function is provided.

[0006] The technical solution of the present invention is: an industrial and commercial energy storage lithium battery module with an overload automatic power-off function, comprising a cabinet body, the cabinet body is hinged with a mirror-image cabinet door, the cabinet body is fixed with a mirror-image first connecting frame distributed in a rectangular array, the adjacent and mirror-image first connecting frames are commonly fixed with a fixed frame, the fixed frame is fixed with four first L-shaped frames, lithium batteries are arranged between the four first L-shaped frames, the lithium batteries are provided with mirror-image distribution terminals, an L-shaped rod is fixed to one side of the fixed frame, a second connecting frame is fixed to one side of the L-shaped rod, and the second connecting frame is fixed to the other side. A mirror-image distributed protective shell is connected to the protective shell, and a mirror-image distributed connecting wire is fixed to the protective shell. A safety component is arranged in the protective shell, and the safety component consists of a heating component and a thermal expansion component. The heating component in the safety component is electrically connected to the two adjacent connecting wires, and the connecting wire away from the protective shell is electrically connected to a conductive ring electrically connected to the adjacent terminal. A circuit breaker assembly, a limit assembly and an unlocking assembly are arranged on the L-shaped rod. The circuit breaker assembly is used to disconnect the electrical connection of the lithium battery, the limit assembly is used to limit the position of the conductive ring, and the unlocking assembly is used to release the limit on the conductive ring.

[0007] Furthermore, the circuit breaker assembly includes a first elastic telescopic rod, which is fixed to the adjacent L-shaped rod, and the telescopic end of the first elastic telescopic rod is fixed to a first U-shaped frame, and a T-shaped frame is fixed between the two adjacent conductive rings. The side of the T-shaped frame away from the adjacent wiring terminals is fixed with two fixed rods of different lengths, and the side of the L-shaped rod away from the adjacent fixed frame is provided with two sliding grooves, and the fixed rods slide in conjunction with the adjacent sliding grooves. The first U-shaped frame is provided with a through groove on the side away from the telescopic end of the adjacent first elastic telescopic rod, and the fixed rod on the T-shaped frame close to the adjacent conductive ring slides in conjunction with the through groove on the adjacent first U-shaped frame.

[0008] Furthermore, the limiting assembly includes a first fixing frame, which is fixed to the side of the adjacent L-shaped rod facing away from the adjacent lithium battery, and the first fixing frame is slidably connected to a limiting piece, and the limiting piece is limitedly cooperated with the adjacent first U-shaped frame, and the side of the first fixing frame facing away from the adjacent L-shaped rod is fixed with a second elastic telescopic rod, and the telescopic end of the second elastic telescopic rod is fixed to the adjacent limiting piece.

[0009] Furthermore, the unlocking assembly includes a second fixing bracket, the second fixing bracket is fixedly connected to a side of the adjacent L-shaped rod close to the adjacent first fixing bracket, the second fixing bracket is fixedly connected to a first oil reservoir on a side away from the adjacent L-shaped rod, hydraulic oil is stored in the first oil reservoir, a first piston rod is slidably connected in the first oil reservoir, a spring is provided between the first piston rod and the adjacent first oil reservoir, a first connecting plate is fixedly connected to a side of the first piston rod away from the adjacent first oil reservoir, a guide member is fixedly connected to a side of the first oil reservoir, a connecting rope that slides with the adjacent guide member is fixedly connected to the side of the first connecting plate away from the adjacent first piston rod, and the connecting rope is far away from the adjacent first piston rod. One end of the adjacent first connecting plate is fixedly connected to the adjacent limiting part, and extrusion parts distributed in a ring array are provided in the protective shell, and the opposite sides of the extrusion parts distributed in the ring array are in contact with the outer sides of the adjacent safety parts. The part inside the protective shell is fixedly connected to the second oil storage parts distributed in a ring array, and the second oil storage parts slide with the adjacent extrusion parts. A spring is provided between the extrusion part and the adjacent second oil storage parts, and an oil storage cavity is provided in the protective shell. The oil storage cavity is connected to the adjacent second oil storage parts distributed in a ring array, and hydraulic oil is stored in the second oil storage part and the oil storage cavity. A connecting pipe is provided between the oil storage cavity and the adjacent first oil storage part.

[0010] Furthermore, the fixed frame is fixedly connected to four third oil storage parts, and hydraulic oil is stored in the third oil storage parts. The opposite sides of the four adjacent third oil storage parts are slidably connected with a second piston rod, and a spring is provided between the second piston rod and the adjacent third oil storage parts. The opposite sides of the four adjacent second piston rods are fixedly connected with a sliding plate that contacts and cooperates with the adjacent lithium batteries. The cabinet body is fixedly connected to fourth oil storage parts, the number of which is the same as the number of lithium batteries, and hydraulic oil is stored in the fourth oil storage part. The side of the fourth oil storage part facing the adjacent lithium battery is connected to the back sides of the four adjacent third oil storage parts through four connecting pipes, and the third piston rod is slidably connected in the fourth oil storage part.

[0011] Furthermore, a third fixing frame is fixedly connected to one side of the fourth oil storage member, a wire sleeve is fixedly connected to the third fixing frame, a wire core is slidably connected inside the wire sleeve, a second connecting plate is fixedly connected to the side of the third piston rod facing away from the adjacent fourth oil storage member, the second connecting plate is fixedly connected to a side of the adjacent wire core close to the adjacent third fixing frame, the first fixing frame is fixedly connected to the third connecting plate, a side of the wire sleeve away from the adjacent third fixing frame is fixedly connected to the adjacent third connecting plate, and a side of the wire core close to the adjacent third connecting plate is fixedly connected to the adjacent limiting member.

[0012] Furthermore, it also includes spring distance sensors with the same number as the fourth oil storage parts, the spring distance sensors are fixedly connected to the adjacent fourth oil storage parts, the fourth oil storage parts are squeezed and fitted with the adjacent third piston rod, and an electric slide rail is fixedly connected to one side of the fixed frame, and the electric slide rail is fixedly connected to a pushing member that is squeezed and fitted with the adjacent lithium battery through the electric slider therein.

[0013] Furthermore, the cabinet door is fixed with a guide frame distributed in a linear array, the number of the guide frames is consistent with the number of the fixed frames, a storage bag is fixed to the side of the guide frame away from the cabinet body, and a fixed shell is fixed to the side of the storage bag away from the adjacent guide frame, and the mirror-distributed cabinet doors are all fixed with a second U-shaped frame distributed in a linear array, the number of the second U-shaped frames is consistent with the number of the guide frames, the second U-shaped frame is rotatably connected to a swing seat, a torsion spring is provided between the swing seat and the adjacent second U-shaped frame, and a third elastic telescopic rod is fixed to the side of the swing seat away from the adjacent second U-shaped frame, and the telescopic part of the third elastic telescopic rod is fixed to a second L-shaped frame fixed to the adjacent fixed shell.

[0014] Furthermore, an airbag is fixedly connected in the fixed shell, and the airbag is squeezed and matched with the adjacent lithium battery, and the airbag is used to cushion the lithium battery.

[0015] Furthermore, the guide frame is fixed with a mirror-distributed seal, and adjacent sides of the mirror-distributed seal are fixed with sliding rods that slide with the adjacent guide frames. The guide frame is fixed with a fourth elastic telescopic rod that is mirror-distributed and distributed in a linear array, and the telescopic end of the fourth elastic telescopic rod is fixed with the adjacent sliding rod, and the fourth elastic telescopic rod is connected to the adjacent airbag through a connecting tube.

[0016] Compared with the prior art, the present invention has the following advantages: The present invention replaces existing circuit breakers by adding a "new electrical connection mechanism" between the lithium battery and the external device, enabling the lithium battery and the external device to maintain both an "electrical connection" and a "circuit breaker" effect. This replaces existing circuit breakers and further avoids a series of problems caused by replacing circuit breakers. While achieving the electrical disconnection effect of existing circuit breakers, it can also be reused. When the lithium battery casing expands, the electrical connection between the lithium battery and the external device is promptly disconnected to prevent the continuous output of current within the lithium battery, which would cause the lithium battery to continue to expand. When the expansion of any lithium battery in the cabinet exceeds the operating limit, the electrical connection between the lithium battery and the external device is disconnected and the expanded lithium battery is "removed". The adjacent seals on the guide frames are moved toward each other to close the rear side of the adjacent guide frames, thereby disconnecting the guide frames from the external environment. The lithium battery in an unexpected situation is then contained in a closed environment, preventing the lithium battery from expanding and causing its own explosion, which could threaten the safety of the surrounding environment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a sectional view of the three-dimensional structure of the cabinet of the present invention;

[0019] Figure 3 A top view of the three-dimensional structure of the lithium battery of the present invention;

[0020] Figure 4 Schematic diagram of the three-dimensional structure of the L-shaped rod of the present invention;

[0021] Figure 5 It is a three-dimensional structural cross-sectional view of the T-shaped frame of the present invention;

[0022] Figure 6 This is a sectional view of the three-dimensional structure of the protective shell of the present invention;

[0023] Figure 7 A bottom view of the three-dimensional structure of the L-shaped rod of the present invention;

[0024] Figure 8 This is a sectional view of the three-dimensional structure of the first oil storage component of the present invention;

[0025] Figure 9 A partial schematic diagram of the three-dimensional structure of the lithium battery of the present invention;

[0026] Figure 10 is a sectional view of the three-dimensional structure of the fourth oil storage component of the present invention;

[0027] Figure 11It is a partial schematic diagram of the three-dimensional structure of the cabinet door of the present invention;

[0028] Figure 12 This is a sectional view of the three-dimensional structure of the cabinet door of the present invention;

[0029] Figure 13 A sectional view of the three-dimensional structure of the guide frame of the present invention;

[0030] Figure 14 It is a partial schematic diagram of the three-dimensional structure of the airbag of the present invention.

[0031] Wherein: 11, cabinet body, 12, cabinet door, 13, first connecting frame, 14, fixing frame, 15, first L-shaped frame, 16, lithium battery, 17, terminal block, 18, L-shaped rod, 181, second connecting frame, 182, protective shell, 183, connecting wire, 184, insurance piece, 185, conductive ring, 20, first elastic telescopic rod, 21, first U-shaped frame, 22, T-shaped frame, 23, fixing rod, 24, slide, 30, first fixing frame, 31, limiter, 32, second elastic telescopic rod, 40, second fixing frame, 41, first oil storage member, 42, first piston rod, 43, first connecting plate, 44, guide member, 45, connecting Rope, 46, extrusion part, 47, second oil storage part, 48, oil storage chamber, 50, third oil storage part, 51, second piston rod, 52, sliding plate, 53, fourth oil storage part, 54, third piston rod, 60, third fixed frame, 61, wire sleeve, 62, wire core, 63, second connecting plate, 64, third connecting plate, 7, spring distance sensor, 70, electric slide rail, 71, pusher, 80, guide frame, 81, storage bag, 82, fixed shell, 83, second U-shaped frame, 84, swing seat, 85, third elastic telescopic rod, 86, second L-shaped frame, 9, airbag, 90, seal, 91, sliding rod, 92, fourth elastic telescopic rod. DETAILED DESCRIPTION

[0032] The following is a clear and complete description of 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 making creative efforts are within the scope of protection of the present invention.

[0033] In order to solve the problem that after the circuit breaker in the industrial and commercial energy storage lithium battery module is activated, the staff may encounter unexpected situations during the process of repairing and replacing the circuit breaker, which increases the maintenance time of the staff. The present invention adopts a method of replacing the existing circuit breaker and adds a "new electrical connection mechanism" between the lithium battery and the external equipment, so that the lithium battery and the external equipment can maintain "electrical connection" and achieve the effect of "circuit breaking", fundamentally solving the existing one-time processing characteristics of the circuit breaker and avoiding a series of problems caused by the replacement process of the circuit breaker.

[0034] Example 1: An industrial and commercial energy storage lithium battery module with an overload automatic power-off function, such as Figures 1-6 As shown, it includes a cabinet body 11, and two cabinet doors 12 with left and right mirror images are hingedly connected to the front side of the cabinet body 11. First connecting frames 13 with left and right mirror images and distributed in a rectangular array are fixed in the cabinet body 11, and adjacent first connecting frames 13 with mirror images are commonly fixed to a fixing frame 14. Four first L-shaped frames 15 are fixed in the fixing frame 14, and lithium batteries 16 are arranged between the four first L-shaped frames 15. Two wiring terminals 17 with upper and lower mirror images are arranged on the front side of the lithium battery 16 (in the present invention, only the upper and lower distribution is used as an example, and the actual arrangement of the wiring terminals 17 is customized according to the specifications of different batteries), an L-shaped rod 18 is fixed to the front side of the fixing frame 14, and a second connecting frame 181 is fixed to the front side of the L-shaped rod 18. Two protective shells 18 with upper and lower mirror images are fixed to the side of the second connecting frame 181 away from the adjacent L-shaped rod 18. 2. The protective shell 182 is fixed with two connecting wires 183 that are distributed in a mirror image on the left and right. A safety component 184 is provided in the protective shell 182. The safety component 184 is composed of a heating element and a thermal expansion element (the heating element is a conductive wire, and the thermal expansion element is a shape memory alloy). The diameter of the heating element in the safety component 184 is smaller than the diameter of the thermal expansion element therein. The heating element in the safety component 184 is electrically connected to the two adjacent connecting wires 183. The adjacent and mirror image-distributed connecting wires 183 are electrically connected to a conductive ring 185 on the side away from the adjacent protective shell 182. The conductive ring 185 is electrically connected to the adjacent terminal 17. The L-shaped rod 18 is provided with a circuit breaker assembly, a limit assembly and an unlocking assembly. The circuit breaker assembly is used to disconnect the electrical connection of the lithium battery 16, the limit assembly is used to limit the position of the conductive ring 185, and the unlocking assembly is used to release the limit on the conductive ring 185.

[0035] like Figure 4 、 Figure 5 and Figure 7As shown, the circuit breaker assembly includes a first elastic telescopic rod 20, which is fixed to the lower side of the adjacent L-shaped rod 18. When the lithium battery 16 is in normal use, the telescopic portion of the first elastic telescopic rod 20 is in a stretched state. The telescopic end of the first elastic telescopic rod 20 is fixed to a first U-shaped frame 21. A T-shaped frame 22 is fixed between two adjacent conductive rings 185. Two fixing rods 23 of different lengths are fixed to the side of the T-shaped frame 22 away from the adjacent terminal 17. The length of the fixing rod 23 of the adjacent two fixing rods 23 close to the adjacent lithium battery 16 is longer than the length of the other fixing rod 23. Two fixing rods 23 are provided on the front side of the L-shaped rod 18. There are three slide grooves 24, and the distance between two adjacent slide grooves 24 is consistent. The shape of the slide groove 24 is V-shaped. The fixing rod 23 slides in cooperation with the adjacent slide groove 24. A through groove is provided on the front side of the first U-shaped frame 21. The fixing rod 23 on the T-shaped frame 22 close to the conductive ring 185 slides in cooperation with the through groove on the adjacent first U-shaped frame 21. When the telescopic part of the first elastic telescopic rod 20 contracts, the first U-shaped frame 21 drives the T-shaped frame 22 and the two adjacent conductive rings 185 to move forward through the adjacent fixing rod 23, so that the two adjacent conductive rings 185 are not electrically connected to the two adjacent terminal blocks 17, so as to realize power-off of the lithium battery 16.

[0036] like Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown, the limiting assembly includes a first fixing frame 30, which is fixed to the side of the adjacent L-shaped rod 18 facing away from the adjacent lithium battery 16. The first fixing frame 30 is slidingly connected to the limiting piece 31. A limiting groove is provided on the rear side of the first U-shaped frame 21. The limiting piece 31 is slidingly matched with the limiting groove on the rear side of the adjacent first U-shaped frame 21. When the limiting piece 31 is inserted into the limiting groove on the rear side of the adjacent first U-shaped frame 21, the adjacent first U-shaped frame 21 is limited. A second elastic telescopic rod 32 is fixed to the side of the first fixing frame 30 facing away from the adjacent L-shaped rod 18. The telescopic end of the second elastic telescopic rod 32 is fixed to the adjacent limiting piece 31. The telescopic part of the second elastic telescopic rod 32 is in a retracted state, which is used to drive the adjacent limiting piece 31 to limit the adjacent first U-shaped frame 21.

[0037] like Figure 4 and Figure 6-Figure 8As shown, the unlocking assembly includes a second fixing frame 40, the second fixing frame 40 is fixed to the side of the adjacent L-shaped rod 18 close to the adjacent first fixing frame 30, and the second fixing frame 40 is fixed to the side away from the adjacent L-shaped rod 18 with a first oil storage part 41, and hydraulic oil is stored in the first oil storage part 41. A first piston rod 42 is sealed and slidably connected in the first oil storage part 41, and the front side of the first piston rod 42 is not sealed with the front side of the adjacent first oil storage part 41. A spring is provided between the first piston rod 42 and the adjacent first oil storage part 41. This spring is used to drive the adjacent first piston rod 42 to reset and slide. The front side of the first piston rod 42 is fixed with a first connecting plate 43, and the rear side of the first oil storage part 41 is fixed with a guide part 44. The first connecting plate 43 is away from the adjacent A connecting rope 45 is fixedly connected to one side of the first piston rod 42, and the connecting rope 45 and the guide member 44 are slidably matched. When the connecting rope 45 is dragged, it slides along the adjacent guide member 44, and the end of the connecting rope 45 away from the adjacent first connecting plate 43 is fixedly connected to the adjacent limiting member 31. When the connecting rope 45 drags the adjacent limiting member 31, the limiting member 31 no longer limits the adjacent first U-shaped frame 21. An extrusion member 46 distributed in an annular array is provided in the protective shell 182. The extrusion member 46 consists of a piston rod and an arc plate. The opposite sides of the extrusion members 46 distributed in the annular array are in contact with the outer side of the adjacent safety member 184. Part of the protective shell 182 is fixedly connected to a second oil storage member 47 distributed in an annular array. The second oil storage member 47 is limited and tightly closed to the adjacent extrusion member 46. The seal is slidingly matched, and the side with a larger diameter in the annular array distribution extrusion member 46 is respectively fitted with the side of the adjacent second oil storage member 47 facing the central axis of the adjacent protective shell 182, so that the annular array extrusion member 46 can only slide back to back. A spring is provided between the extrusion member 46 and the adjacent second oil storage member 47. This spring is used to provide the adjacent extrusion member 46 with a supporting force for the adjacent insurance member 184. An oil storage chamber 48 is provided in the protective shell 182. The oil storage chamber 48 is connected to the adjacent second oil storage member 47 distributed in an annular array. Hydraulic oil is stored in all second oil storage members 47 and adjacent oil storage chambers 48. A connecting pipe is connected between the oil storage chamber 48 and the adjacent first oil storage member 41. When the voltage of the current flowing through the heating element in the insurance member 184 exceeds its own When the load range is within the load range, the heating element in the safety member 184 emits a large amount of heat to the surroundings. After the heat expansion element in the safety member 184 expands, it squeezes the adjacent extrusion members 46 distributed in a ring array, so that the extrusion members 46 distributed in the ring array are separated from each other, so that the extrusion member 46 squeezes the hydraulic oil in the adjacent second oil storage member 47 and the adjacent oil storage cavity 48 into the adjacent first oil storage member 41, thereby completing the transmission of the deformation of the safety member 184. The hydraulic oil entering the first oil storage member 41 causes the first oil storage member 41 to indirectly pull the connecting rope 45, so that the limiting member 31 releases the limit on the adjacent first U-shaped frame 21. Under the action of the tension provided by the adjacent first elastic telescopic rod 20, the first U-shaped frame 21 prevents the conductive ring 185 from contacting the adjacent terminal 17.The connection terminal 17 on the lithium battery 16 no longer transmits current to the adjacent connecting wire 183 through the adjacent conductive ring 185, thereby achieving automatic power off of the lithium battery 16 when it is overloaded.

[0038] like Figure 2 、 Figure 9 and Figure 10 As shown, the fixed frame 14 is fixed with four third oil storage parts 50, and hydraulic oil is stored in the third oil storage parts 50. The opposite sides of the adjacent four third oil storage parts 50 are sealed and slidably connected with the second piston rod 51. The side of the second piston rod 51 facing the adjacent lithium battery 16 is not sealed with the adjacent third oil storage part 50. A spring is provided between the second piston rod 51 and the adjacent third oil storage part 50. This spring is used to provide support force for the adjacent second piston rod 51. The opposite sides of the adjacent four second piston rods 51 are fixed with sliding plates 52 that contact and cooperate with the adjacent lithium batteries 16. The cabinet body 11 is fixed with the same number of lithium batteries 16. The fourth oil storage part 53 stores hydraulic oil. The fourth oil storage part 53 is connected to the back sides of the four adjacent third oil storage parts 50 through four connecting pipes on the side facing the adjacent lithium battery 16. After the outer shell of the lithium battery 16 expands, the outer shell of the lithium battery 16 squeezes the adjacent sliding plate 52, so that the sliding plate 52 drives the adjacent second piston rod 51 to slide, squeezing the hydraulic oil in the adjacent third oil storage part 50, thereby completing the transfer of the expansion degree of the lithium battery 16 outer shell. The third piston rod 54 is sealed and slidably connected in the fourth oil storage part 53, and the rear side of the third piston rod 54 is not sealed and matched with the adjacent fourth oil storage part 53.

[0039] like Figure 7-10 As shown, one side of the fourth oil storage part 53 is fixedly connected to the third fixing frame 60, the third fixing frame 60 is fixedly connected to the wire sleeve 61, the wire sleeve 61 is internally limited and slidably connected to the wire core 62, the rear side of the third piston rod 54 is fixedly connected to the second connecting plate 63, the second connecting plate 63 is fixedly connected to the rear side of the adjacent wire core 62, the first fixing frame 30 is fixedly connected to the third connecting plate 64, the front side of the wire sleeve 61 is fixedly connected to the adjacent third connecting plate 64, and the front side of the wire core 62 is fixedly connected to the adjacent limiting part 31.

[0040] When the device is needed to provide power to an external device, the staff installs the device at the required location, and then connects all the connecting wires 183 on the device away from the side of the cabinet 11 to the required location (for example: external device, for example only).

[0041] When the external device connected to the connecting line 183 suddenly requires a large amount of electricity (such as using high-power electrical appliances, starting motors, etc.), the current flowing through the connecting line 183 exceeds the voltage required for operation, which will generate additional resistance loss on the connecting line 183. The electrical energy will be consumed in the form of heat energy, thereby causing heating. When the heat generated by the heating element in the fuse 184 is higher than the heat generated when the current is transmitted, the heating element in the fuse 184 dissipates heat to the surroundings.

[0042] When the heat expansion member in the safety member 184 absorbs the heat generated by the thermal expansion of the heating element in the safety member 184, the heat expansion member in the safety member 184 expands due to the heat and squeezes the surrounding extrusion members 46. During the movement of the extrusion member 46, the hydraulic oil in the adjacent second oil storage member 47 is squeezed into the adjacent oil storage chamber 48 (the extrusion member 46 squeezes the adjacent spring during the movement). The hydraulic oil in the oil storage chamber 48 then enters the adjacent first oil storage member 41 through the adjacent connecting pipe. After the hydraulic oil pressure in the first oil storage member 41 increases, it drives the first piston rod 42 therein to slide, and the first piston rod 42 drives the adjacent first connecting member 47 to slide. During the sliding process of the connecting plate 43, the adjacent connecting rope 45 is pulled (the adjacent spring is squeezed during the sliding process of the first piston rod 42), so that the connecting rope 45 slides along the adjacent guide member 44 and drives the adjacent limiting member 31 to slide toward the side away from the adjacent first fixing frame 30. During the sliding process of the limiting member 31, the telescopic portion of the adjacent second elastic telescopic rod 32 is stretched. During the sliding process of the limiting member 31, the limiting member 31 gradually disengages from the restriction on the adjacent first U-shaped frame 21. After the limiting member 31 is no longer in contact with the adjacent first U-shaped frame 21, the first U-shaped frame 21 slides forward under the action of the pulling force provided by the adjacent first elastic telescopic rod 20.

[0043] When the first U-shaped frame 21 slides forward, the adjacent fixing rod 23 drives the T-shaped frame 22 and its attached parts to slide forward. When the T-shaped frame 22 and the two fixing rods 23 slide, the two fixing rods 23 drive the adjacent T-shaped frame 22 and the two conductive rings 185 to slide forward, and the two conductive rings 185 are no longer electrically connected to the adjacent terminal blocks 17.

[0044] When the two fixing rods 23 drive the adjacent T-shaped frames 22 to move to the corner position of the fixing rods 23 where the adjacent chute 24 is located (the corner position is the middle of the chute 24), the sliding direction of the two fixing rods 23 and the adjacent T-shaped frames 22 is switched from straight sliding toward the front side to oblique sliding, so that the two fixing rods 23 and the adjacent T-shaped frames 22 slide until they no longer block the adjacent lithium batteries 16, thereby facilitating the staff to inspect and replace the lithium batteries 16 later.

[0045] When the two fixing rods 23 drive the adjacent T-shaped frames 22 to move to the front side of the inclined portion of the adjacent chute 24 where the fixing rods 23 are located, the T-shaped frames 22 and the L-shaped rod 18 and their attached parts stop moving.

[0046] When the accidental lithium battery 16 is no longer powered by external equipment, the staff opens the cabinet door 12 and takes out the accidental lithium battery 16 from the cabinet body 11. The process of taking out the accidental lithium battery 16 is as follows: the staff drags the accidental lithium battery 16 to the front side, and the accidental lithium battery 16 slides outward along the four adjacent first L-shaped frames 15 until it slides out of the four first L-shaped frames 15, thereby completing the removal of the accidental lithium battery 16.

[0047] When the lithium battery 16 is accidentally removed, the thermal expansion member in the safety member 184 no longer expands, and the extrusion member 46 slides in the direction of the adjacent safety member 184 toward the second oil storage member 47 under the action of the adjacent spring and fits into the outer side. During the sliding process of the extrusion member 46, the pressure of the hydraulic oil in the adjacent oil storage chamber 48 is reduced. Under the action of the adjacent spring of the first piston rod 42, the first piston rod 42 drives the adjacent first connecting plate 43 to reset and slide, thereby losing the drag on the adjacent connecting rope 45, so that the connecting rope 45 no longer drags the limit member 31, and the limit member 31 slides in the direction of the adjacent first fixing frame 30 under the action of the tension provided by the adjacent second elastic telescopic rod 32.

[0048] When the heat expansion member in the safety member 184 cools down and no longer expands, the staff puts the new lithium battery 16 into the position required for the work. After the new lithium battery 16 slides to the position required for the work along the four first L-shaped frames 15, the staff pushes the first U-shaped frame 21 backward (the telescopic part of the adjacent first elastic telescopic rod 20 is stretched during the movement of the first U-shaped frame 21 toward the backward). The first U-shaped frame 21 drives the adjacent T-shaped frame 22 to slide backward through the adjacent fixed rod 23. During the sliding process of the T-shaped frame 22, the two adjacent fixed rods 23 are respectively reset and slid along the adjacent slide grooves 24. In the process of the two fixed rods 23 driving the adjacent T-shaped frames 22 to move to the non-inclined part of the fixed rod 23 and the adjacent slide groove 24, the two adjacent conductive rings 185 on the T-shaped frame 22 are respectively moved to fit with the adjacent terminal blocks 17.

[0049] Before the two adjacent conductive rings 185 are completely moved to fit with the terminal 17, the staff pulls the limit piece 31. When the first U-shaped frame 21 moves to the point where the adjacent limit piece 31 is sufficient to be inserted into the limit groove on the rear side of the adjacent first U-shaped frame 21, the staff releases the limit piece 31, and the limit piece 31 resets and moves to insert into the rear side of the adjacent first U-shaped frame 21 to achieve the limitation of the first U-shaped frame 21 and its accessories. If the lithium battery 16 is overloaded subsequently, the above action can be repeated.

[0050] When a short circuit occurs in one of the lithium batteries 16, causing its shell to expand (the short circuit is only an example and does not limit the triggering situation of the shell expansion), taking the expansion process of any side of the lithium battery 16 as an example, after the lithium battery 16 expands, it squeezes the sliding plate 52 on the adjacent side, and the sliding plate 52 drives the adjacent second piston rod 51 to move to the side away from the adjacent lithium battery 16 and squeezes the spring adjacent to the second piston rod 51. During the movement of the second piston rod 51, the hydraulic oil in the adjacent third oil storage part 50 is squeezed into the adjacent fourth oil storage part 53 through the adjacent connecting pipe. After the hydraulic oil in the fourth oil storage part 53 increases, it squeezes the adjacent third piston rod 54. The third piston rod 54 drives the adjacent second connecting plate 63 to slide and drags the rear end of the adjacent wire core 62. After being dragged, the wire core 62 slides along the adjacent wire sleeve 61 and drives the adjacent limit member 31 to move to the side away from the adjacent first fixing frame 30.

[0051] During the sliding process of the limiting member 31, the limit on the adjacent first U-shaped frame 21 is released, and the first U-shaped frame 21 drives the T-shaped frame 22 and its attached parts to move forward through the adjacent fixing rod 23 (the movement process of the T-shaped frame 22 and its attached parts can be repeated as described above). During the process of the T-shaped frame 22 driving the two conductive rings 185 to slide forward, the electrical connection with the adjacent terminal 17 is lost, so that after a short circuit occurs in the lithium battery 16, the lithium battery 16 is no longer electrically connected to the external device through the adjacent connecting line 183. The replacement process of the short-circuited lithium battery 16 can be repeated as described above.

[0052] In order to solve the problem that a short circuit in a lithium battery causes its outer shell to swell, which may lead to the explosion or deflagration of the lithium battery, thereby affecting the surrounding environment, the present invention adopts a targeted treatment method. When one of the lithium batteries swells, the electrical connection of the lithium battery is disconnected and the swollen lithium battery is "moved out" so that the swollen lithium battery no longer contacts the remaining lithium batteries.

[0053] Example 2: Based on Example 1, Figure 2 、 Figure 9 and Figure 10 As shown, it also includes spring distance sensors 7 with the same number as the fourth oil storage parts 53. The spring distance sensors 7 are fixedly connected to the adjacent fourth oil storage parts 53. The spring portion on the fourth oil storage part 53 is squeezed and matched with the adjacent third piston rod 54. When the spring portion on the fourth oil storage part 53 is squeezed by the adjacent third piston rod 54, it proves that the lithium battery 16 has expanded. An electric slide rail 70 is fixedly connected to one side of the fixed frame 14. The electric slide rail 70 is fixedly connected to a pusher 71 that is squeezed and matched with the adjacent lithium battery 16 through the electric slider therein. The pusher 71 is used to "push out" the adjacent lithium battery 16.

[0054] like Figure 1 and Figure 11-13As shown, the cabinet door 12 is fixedly connected to a guide frame 80 distributed in a vertical linear array, and the number of the guide frames 80 is consistent with the number of the fixed frames 14. The front side of the guide frame 80 is fixedly connected to a storage bag 81 in a contracted state (when the cabinet door 12 is closed), and the front side of the storage bag 81 is fixedly connected to a fixed shell 82 (when the cabinet door 12 is closed). The cabinet doors 12 distributed in the left and right mirror images are fixedly connected to a second U-shaped frame 83 distributed in a vertical linear array, and the number of the second U-shaped frames 83 is consistent with the number of the guide frames 80. The front side of the second U-shaped frame 83 is limited and rotatably connected to a swing seat 84, and a torsion spring is provided between the swing seat 84 and the adjacent second U-shaped frame 83. This torsion spring is provided between the swing seat 84 and the adjacent second U-shaped frame 83. The spring is used to provide buffering for the adjacent swing seat 84. The front side of the swing seat 84 is fixed with a third elastic telescopic rod 85 (when the cabinet door 12 is closed). The telescopic part of the third elastic telescopic rod 85 (the telescopic part of the third elastic telescopic rod 85 has not popped out at this time) is fixed with a second L-shaped frame 86 fixed to the adjacent fixed shell 82 (when the cabinet door 12 is closed). An airbag 9 is fixed inside the fixed shell 82. The airbag 9 is squeezed and fitted with the adjacent lithium battery 16. The airbag 9 is used to buffer the lithium battery 16 to prevent the lithium battery 16 from falling too fast and causing damage to the lithium battery 16. The fixed shell 82, storage bag 81 and guide frame 80 are all made of fireproof material.

[0055] like Figure 12-14 As shown, the guide frame 80 is fixed with two seals 90 distributed in an upper and lower mirror image. When the airbag 9 adjacent to the guide frame 80 is not squeezed, the seal 90 is in a contracted state. The seal 90 is made of fireproof material. The adjacent sides of the two seals 90 distributed in an upper and lower mirror image are fixed with sliding rods 91. The sliding rods 91 slide with the adjacent guide frames 80. The guide frame 80 is fixed with fourth elastic telescopic rods 92 distributed in an upper and lower mirror image and in a horizontal linear array. The fourth elastic telescopic rod 92 is a multi-stage telescopic rod. The telescopic end of the fourth elastic telescopic rod 92 is aligned with the corresponding The adjacent sliding rod 91 is fixedly connected, and when the lithium battery 16 adjacent to the fourth elastic telescopic rod 92 is in normal use, the fourth elastic telescopic rod 92 is in a contracted state, and the airbag 9 is connected to the adjacent fourth elastic telescopic rod 92 through four connecting tubes. After the airbag 9 is squeezed, the gas therein enters the adjacent fourth elastic telescopic rod 92 through the four connecting tubes, causing the telescopic portion of the fourth elastic telescopic rod 92 to extend, thereby pushing the adjacent sealing member 90. The rear side of the guide frame 80 is blocked by the relative movement of the two adjacent sealing members 90.

[0056] When an unexpected situation occurs in the lithium battery 16 (for example, short circuit expansion: the lithium battery 16 has disconnected its electrical connection with the external device after expansion), the third piston rod 54 squeezes the spring part of the adjacent spring distance sensor 7, proving that one side of the lithium battery 16 has expanded. The spring distance sensor 7 transmits an electrical signal to the adjacent electric slide 70. The electric slide 70 drives the adjacent pusher 71 to slide forward through the electric slider therein. In the process of sliding forward, the pusher 71 drives the adjacent lithium battery 16 (in an unexpected situation) to slide forward, so that the lithium battery 16 in the unexpected situation is pushed out.

[0057] In the process of sliding forward in an unexpected situation, the lithium battery 16 gradually enters the adjacent guide frame 80, storage bag 81 and fixed shell 82. After the lithium battery 16 in an unexpected situation contacts the airbag 9, the lithium battery 16 drives the airbag 9 and the fixed shell 82 to move forward (the fixed shell 82 stretches the adjacent storage bag 81 and the telescopic part of the adjacent third elastic telescopic rod 85 during the process of moving forward).

[0058] When the lithium battery 16 in an unexpected situation is pushed by the adjacent pushing member 71 until the lithium battery 16 in an unexpected situation is no longer in contact with the four adjacent first L-shaped frames 15, the lithium battery 16 in an unexpected situation has fallen into the adjacent guide frame 80, storage bag 81 and fixed shell 82. Under the action of the gravity of the lithium battery 16 in an unexpected situation, the adjacent guide frame 80, storage bag 81, fixed shell 82, third elastic telescopic rod 85 and swing seat 84 swing downward along the adjacent second U-shaped frame 83. During the swinging process of the second U-shaped frame 83, the adjacent torsion spring is gradually tightened to cushion the swing of the second U-shaped frame 83 and its attached parts.

[0059] When the lithium battery 16 in an unexpected situation swings along with the adjacent swing seat 84, it changes from a flat state to a vertical state. Under the action of its own gravity, the lithium battery 16 in an unexpected situation squeezes the adjacent airbag 9, and the airbag 9 transports the gas therein to the adjacent four fourth elastic telescopic rods 92 through the adjacent four connecting pipes, so that the telescopic part of the fourth elastic telescopic rod 92 drives the adjacent sliding rod 91 to slide toward the middle of the adjacent guide frame 80, so that the sealing member 90 covers the rear side of the adjacent guide frame 80. By the relative movement of the two adjacent sealing members 90 on the guide frame 80, the rear side of the adjacent guide frame 80 is closed and covered, thereby disconnecting the connection between the guide frame 80 and the external environment, so that the lithium battery 16 in an unexpected situation is located in a closed environment, avoiding the lithium battery 16 from expanding and causing its own explosion, which threatens the surrounding environment and personnel safety.

[0060] When replacing and repairing the lithium battery 16 that has an unexpected problem, the staff can simply remove the guide frame 80 and its accessory parts and replace them with new ones.

[0061] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the scope of protection of the present invention.

Claims

1. An industrial and commercial energy storage lithium battery module with an overload automatic power-off function, comprising a cabinet (11), the cabinet (11) being hinged with a cabinet door (12) in mirror-image distribution, the cabinet (11) having first connecting frames (13) fixedly connected therein in a mirror-image distribution and in a rectangular array, adjacent first connecting frames (13) in a mirror-image distribution being fixedly connected thereto in common, a fixing frame (14), four first L-shaped frames (15) fixedly connected therein, lithium batteries (16) being arranged between the four first L-shaped frames (15), the lithium batteries (16) being provided with wiring terminals (17) in a mirror-image distribution, characterized in that: It also includes L-shaped rods (18) with the same number as the fixed frames (14), the L-shaped rods (18) are fixed to the adjacent fixed frames (14), one side of the L-shaped rods (18) is fixed to a second connecting frame (181), the second connecting frame (181) is fixed to a mirror-distributed protective shell (182), the protective shell (182) is fixed to a mirror-distributed connecting line (183), a safety member (184) is provided in the protective shell (182), the safety member (184) is composed of a heating member and a thermal expansion member, the safety member (184) is provided in the protective shell (182), the safety member (184) is provided with a heating member and a thermal expansion member, ... The heating element in the component (184) is electrically connected to two adjacent connecting wires (183), and the connecting wire (183) away from the protective shell (182) is electrically connected to a conductive ring (185) electrically connected to the adjacent terminal (17). The L-shaped rod (18) is provided with a circuit breaker component, a limit component and an unlocking component. The circuit breaker component is used to disconnect the electrical connection of the lithium battery (16), the limit component is used to limit the position of the conductive ring (185), and the unlocking component is used to release the limit on the conductive ring (185).

2. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 1, characterized in that: The circuit breaker assembly includes a first elastic telescopic rod (20), the first elastic telescopic rod (20) is fixed to the adjacent L-shaped rod (18), the telescopic end of the first elastic telescopic rod (20) is fixed to a first U-shaped frame (21), a T-shaped frame (22) is fixed between two adjacent conductive rings (185), two fixed rods (23) of different lengths are fixed to the side of the T-shaped frame (22) away from the adjacent wiring terminal (17), two sliding grooves (24) are provided on the side of the L-shaped rod (18) away from the adjacent fixed frame (14), the fixed rods (23) are slidably matched with the adjacent sliding grooves (24), a through groove is provided on the side of the first U-shaped frame (21) away from the telescopic end of the adjacent first elastic telescopic rod (20), and the fixed rod (23) on the T-shaped frame (22) close to the adjacent conductive ring (185) is slidably matched with the through groove on the adjacent first U-shaped frame (21).

3. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 2, characterized in that: The limiting assembly includes a first fixing frame (30), the first fixing frame (30) is fixed to the side of the adjacent L-shaped rod (18) facing away from the adjacent lithium battery (16), the first fixing frame (30) is slidably connected to a limiting member (31), the limiting member (31) is limitedly matched with the adjacent first U-shaped frame (21), and the first fixing frame (30) is fixed to the side facing away from the adjacent L-shaped rod (18) with a second elastic telescopic rod (32), and the telescopic end of the second elastic telescopic rod (32) is fixed to the adjacent limiting member (31).

4. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 3, characterized in that: The unlocking assembly includes a second fixing frame (40), the second fixing frame (40) is fixed to a side of the adjacent L-shaped rod (18) close to the adjacent first fixing frame (30), the second fixing frame (40) is fixed to a first oil storage member (41) on a side away from the adjacent L-shaped rod (18), the first oil storage member (41) stores hydraulic oil, the first oil storage member (41) is slidably connected to a first piston rod (42), a spring is provided between the first piston rod (42) and the adjacent first oil storage member (41), the first piston rod (42) is fixed to a first connecting plate (43) on a side away from the adjacent first oil storage member (41), the first oil storage member (41) is fixed to a guide member (44), the first connecting plate (43) is fixed to a side away from the adjacent first piston rod (42) and is slidably matched with the adjacent guide member (44), the connecting rope (45) is far away from the adjacent first piston rod (42). One end of the adjacent first connecting plate (43) is fixedly connected to the adjacent limiting member (31), and the protective shell (182) is provided with extrusion members (46) distributed in an annular array, and the opposite sides of the extrusion members (46) distributed in an annular array are in contact with the outer sides of the adjacent safety member (184). Part of the protective shell (182) is fixedly connected with a second oil storage member (47) distributed in an annular array, and the second oil storage member (47) is slidably matched with the adjacent extrusion member (46). A spring is provided between the extrusion member (46) and the adjacent second oil storage member (47). An oil storage chamber (48) is provided in the protective shell (182), and the oil storage chamber (48) is communicated with the adjacent second oil storage member (47) distributed in an annular array. Hydraulic oil is stored in the second oil storage member (47) and the oil storage chamber (48), and a connecting pipe is provided between the oil storage chamber (48) and the adjacent first oil storage member (41).

5. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 3, characterized in that: The fixed frame (14) is fixedly connected with four third oil storage parts (50), and hydraulic oil is stored in the third oil storage parts (50). The opposite sides of the four adjacent third oil storage parts (50) are slidably connected with second piston rods (51), and a spring is provided between the second piston rods (51) and the adjacent third oil storage parts (50). The opposite sides of the four adjacent second piston rods (51) are fixedly connected with sliding plates (52) that contact and cooperate with the adjacent lithium batteries (16). The cabinet (11) is fixedly connected with fourth oil storage parts (53) whose number is the same as the number of the lithium batteries (16). Hydraulic oil is stored in the fourth oil storage parts (53). The side of the fourth oil storage part (53) facing the adjacent lithium battery (16) is connected to the back sides of the four adjacent third oil storage parts (50) through four connecting pipes, and the third piston rod (54) is slidably connected to the fourth oil storage part (53).

6. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 5, characterized in that: A third fixing frame (60) is fixedly connected to one side of the fourth oil storage member (53), a wire sleeve (61) is fixedly connected to the third fixing frame (60), a wire core (62) is slidably connected inside the wire sleeve (61), a second connecting plate (63) is fixedly connected to the side of the third piston rod (54) facing away from the adjacent fourth oil storage member (53), the second connecting plate (63) is fixedly connected to the side of the adjacent wire core (62) close to the adjacent third fixing frame (60), the first fixing frame (30) is fixedly connected to the third connecting plate (64), the side of the wire sleeve (61) away from the adjacent third fixing frame (60) is fixedly connected to the adjacent third connecting plate (64), and the side of the wire core (62) close to the adjacent third connecting plate (64) is fixedly connected to the adjacent limiting member (31).

7. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 6, characterized in that: It also includes spring distance sensors (7) the same number as the fourth oil storage member (53), the spring distance sensors (7) are fixedly connected to the adjacent fourth oil storage member (53), the fourth oil storage member (53) is squeezed and matched with the adjacent third piston rod (54), and one side of the fixed frame (14) is fixedly connected to an electric slide rail (70), and the electric slide rail (70) is fixedly connected to a pusher (71) squeezed and matched with the adjacent lithium battery (16) through the electric slider therein.

8. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 7, characterized in that: The cabinet door (12) is fixedly connected to a guide frame (80) distributed in a linear array, the number of the guide frames (80) is consistent with the number of the fixed frames (14), the side of the guide frame (80) away from the cabinet body (11) is fixedly connected to a storage bag (81), the side of the storage bag (81) away from the adjacent guide frame (80) is fixedly connected to a fixed shell (82), and the mirror-distributed cabinet doors (12) are all fixedly connected to second U-shaped frames (83) distributed in a linear array, the number of the second U-shaped frames (83) is consistent with the number of the guide frames (80), the second U-shaped frames (83) are rotatably connected to a swing seat (84), a torsion spring is provided between the swing seat (84) and the adjacent second U-shaped frame (83), the side of the swing seat (84) away from the adjacent second U-shaped frame (83) is fixedly connected to a third elastic telescopic rod (85), the telescopic portion of the third elastic telescopic rod (85) is fixedly connected to a second L-shaped frame (86) fixed to the adjacent fixed shell (82).

9. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 8, characterized in that: An airbag (9) is fixedly connected inside the fixed shell (82), and the airbag (9) is squeezed and matched with the adjacent lithium battery (16). The airbag (9) is used to buffer the lithium battery (16).

10. The industrial and commercial energy storage lithium battery module with an overload automatic power-off function according to claim 9, characterized in that: The guide frame (80) is fixed with a mirror-distributed seal (90), and adjacent sides of the mirror-distributed seal (90) are fixed with sliding rods (91) that slide with the adjacent guide frame (80). The guide frame (80) is fixed with a mirror-distributed fourth elastic telescopic rod (92) that is distributed in a linear array, and the telescopic end of the fourth elastic telescopic rod (92) is fixed with the adjacent sliding rod (91). The fourth elastic telescopic rod (92) is connected to the adjacent airbag (9) through a connecting tube.

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