Lifting drive system for energy storage and delivery system

Abstract

A hoist drive system for an energy storage and delivery system includes an electric motor that rotates a driven shaft. A steel band is disposed at least partially around and in contact with the driven shaft, wherein rotation of the driven shaft by the electric motor causes linear motion of the steel band. The steel band can be connected to a lift cage assembly at one end and to a counterweight at an opposite end. The steel band can extend from the driven shaft and contact a first roller and a second roller. The first roller can maintain the steel band in a vertical orientation, and the second roller is positioned relative to the driven shaft to increase an angle of wrap of the steel band on the driven shaft.

Description

[0001] Cross-references to related applications

[0002] Any and all applications that identify foreign or domestic priority claims in the application data sheet filed with this application are hereby incorporated by reference pursuant to 37 CR 1.57 and shall be considered part of this specification. Technical Field

[0003] The present invention relates to an energy storage and transmission system, and more specifically, to a lifting drive system for an energy storage and transmission system, which stores and releases energy via the vertical movement of a block or brick. Background Technology

[0004] Electricity generation from renewable energy sources (e.g., solar, wind, hydro, biomass, etc.) continues to grow. However, many of these renewable energy sources (e.g., solar, wind) are intermittent and unpredictable, limiting the amount of electricity that can be delivered to the grid from these intermittent renewable sources. Summary of the Invention

[0005] Therefore, there is a need to improve systems to capture electricity generated from renewable energy sources so that it can be delivered to the power grid in a predictable manner. As used in this paper, the power grid is an interconnected network used to deliver electricity from producers to consumers and spans a wide geographical area including cities, states, and / or countries.

[0006] According to one aspect of this disclosure, an energy storage and delivery system is provided. An example energy storage and delivery system includes a crane or elevator and a plurality of blocks, wherein the crane or elevator is operable to move one or more blocks from a lower height to a higher height to store energy (e.g., potential energy of the blocks at the higher height), and is operable to move one or more blocks from the higher height to a lower height to generate electricity (e.g., kinetic energy of the blocks as they move to the lower height).

[0007] According to another aspect of this disclosure, in one example, the energy storage and transmission system can store solar energy to generate electricity during off-peak hours. The energy storage and transmission system can move multiple blocks from a lower altitude to a higher altitude to store solar energy as potential energy in the blocks during daytime hours when solar power is abundant. The energy storage system can then operate during nighttime to move the blocks from a higher altitude to a lower altitude to drive a generator to produce electricity for transmission to the power grid.

[0008] According to another aspect of this disclosure, a lifting drive system for an energy storage and transmission system is provided. The system includes an electric motor having an output shaft, a clutch coupled to the output shaft, and a driven shaft coupled to the clutch. The system also includes a steel belt disposed at least partially around and in contact with the driven shaft, rotation of the driven shaft causing translation of the steel belt. The system further includes a braking assembly operatively coupled to the driven shaft and selectively operable to brake rotation of the driven shaft. When the clutch is engaged, rotation of the output shaft causes rotation of the driven shaft in a first direction to translate the steel belt, and when the clutch is disengaged, rotation of the output shaft does not cause rotation of the driven shaft, and the braking assembly is engaged to maintain the position of the driven shaft and the steel belt.

[0009] According to another aspect of this disclosure, a lifting drive system for an energy storage and transmission system is provided. The system includes one or more lifting drive units. Each unit includes: an electric motor coupled to and operable to rotate the driven shaft; a steel belt at least partially surrounding and in contact with the driven shaft, the rotation of the driven shaft causing translation of the steel belt; a braking assembly operably coupled to and selectively operable to brake rotation of the driven shaft; a clutch coupled to the driven shaft, the braking assembly disposed between the clutch and the electric motor; and a roller coupled to a clutch roller, the clutch disposed between the braking assembly and the roller, the electric motor, braking assembly, clutch, and roller arranged in a straight line. The system further includes: a drive shaft offset from the roller and coupled to the roller via a belt, such that rotation of the drive shaft causes rotation of the roller in the same direction via the belt; and a second electric motor coupled to and operable to rotate the drive shaft. When the clutch is engaged, the brake assembly is disengaged, and the electric motor is turned off, the rotation of the drive shaft caused by the second electric motor causes the rollers and driven shaft to rotate in the first direction to translate the steel belt. When the clutch is disengaged, the rotation of the drive shaft does not cause the driven shaft to rotate, and the brake assembly is engaged to maintain the position of the driven shaft and the steel belt.

[0010] According to another aspect of this disclosure, a lifting drive system for an energy storage and transmission system is provided. The system includes one or more lifting drive units. Each lifting drive unit includes: an electric motor coupled to a driven shaft; a frequency converter operatively coupled to the electric motor; a steel belt at least partially surrounding and in contact with the driven shaft, wherein rotation of the driven shaft caused by the electric motor translates the steel belt; and a braking assembly operatively coupled to the driven shaft and selectively operable to brake rotation of the driven shaft. When the braking assembly is disengaged, rotation of the driven shaft caused by the electric motor in a first direction causes linear movement of the steel belt in one direction, and wherein rotation of the driven shaft caused by the electric motor in a second direction opposite to the first direction causes linear movement of the steel belt in the opposite direction, and wherein, when the braking assembly is engaged, the positions of the driven shaft and the steel belt remain unchanged.

[0011] According to another aspect of this disclosure, a system for an energy storage and transmission system is provided. The system may include a tower or frame. The system may also include a lifting drive unit. The lifting drive unit may include an electric motor coupled to a driven shaft, the electric motor being operable to rotate the driven shaft. The lifting drive unit may include a braking assembly operably coupled to the driven shaft and selectively operable to brake rotation of the driven shaft. The lifting drive unit may include a clutch coupled to the driven shaft. The braking assembly may be disposed between the clutch and the electric motor. The lifting drive unit may include a first roller and a second roller radially spaced from the driven shaft. A steel strip may be partially wound around the driven shaft and frictionally engaged with the driven shaft. The steel strip may have a first portion and a second portion each wound around the driven shaft. The first portion may extend from the driven shaft and contact the first roller. The second portion may extend from the driven shaft and contact the second roller. The first roller may hold the first portion of the steel strip in a vertical orientation. The second roller may angle the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft. A compartment may be coupled to the first portion of the steel strip. The counterweight can be attached to a second section of the steel belt. Rotation of the driven shaft can translate the steel belt, thereby moving the compartment and the counterweight. The first and second rollers can rotate in the opposite direction to the driven shaft.

[0012] According to another aspect of this disclosure, a system for an energy storage and transmission system is provided. The system may include a tower or frame. The system may also include a lifting drive unit. The lifting drive unit may include an electric motor coupled to and operable to rotate the driven shaft. The lifting drive unit may include a first roller and a second roller radially spaced apart from the driven shaft. The lifting drive unit may include a steel strip partially wound around and frictionally engaged with the driven shaft. The steel strip may have a first portion and a second portion each wound around the driven shaft. The first portion extends from the driven shaft and can contact the first roller. The second portion extends from the driven shaft and can contact the second roller. The first roller can hold the first portion of the steel strip in a vertical orientation. The second roller can angle the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft. A compartment may be coupled to the first portion. A counterweight may be coupled to the second portion. Rotation of the driven shaft can cause the steel strip to translate in a first direction to lift the compartment and lower the counterweight. The first and second rollers may rotate in the opposite direction to the driven shaft.

[0013] According to another aspect of this disclosure, a lifting drive system for an energy storage and transmission system is provided. The lifting drive system may include an electric motor coupled to and operable to rotate the driven shaft. The lifting drive system may include a steel strip partially wound around and frictionally engaged with the driven shaft. The steel strip may have a first portion and a second portion, each wound around the driven shaft. The first portion extends from the driven shaft and can contact a first roller. The second portion extends from the driven shaft and can contact a second roller. The first roller can hold the first portion of the steel strip in a vertical orientation. The second roller can angle the second portion of the steel strip to increase the winding angle of the steel strip. The first and second rollers can rotate in a direction opposite to the driven shaft.

[0014] Further details of the energy storage system and method can be found in U.S. Application No. 17 / 304,980 (Attorney’s File No. ENVLT.009A1), filed June 29, 2021, the entire contents of which are incorporated herein by reference and shall be considered a part of this specification. Attached Figure Description

[0015] Figure 1 This is a schematic perspective view of a lift drive system for an energy storage and transmission system used to store energy and generate electricity on demand.

[0016] Figure 2 This is a schematic side view of part of the boost drive system.

[0017] Figure 3This is a schematic perspective view of part of the boost drive system.

[0018] Figure 4 This is a schematic side view of part of the boost drive system.

[0019] Figure 5 This is a schematic perspective view of an example crane system implementing a lifting drive system.

[0020] Figure 6 This is a schematic perspective view of part of the boost drive system.

[0021] Figure 6A This is a schematic diagram of the boost drive system.

[0022] Figure 7 This is a schematic side view of part of the boost drive system.

[0023] Figure 8 This is a schematic side view of a lifting drive system on a tower, which is operable to lift blocks in an adjacent elevator shaft.

[0024] Figure 9 It is a schematic perspective view of a tower or frame with a lifting drive system that is operable to move blocks between different heights on the tower.

[0025] Figure 10 It has Figure 9 A schematic side view of the tower or frame of the lifting drive system.

[0026] Figure 11 yes Figure 9 The end view of the upper part of the tower shows a portion of the lifting drive system.

[0027] Figure 12 yes Figure 10 A schematic side view of the upper part of the tower, showing Figure 11 It is part of the enhancement drive system.

[0028] Figure 13 yes Figure 9 A schematic perspective view of the upper part of the tower, showing Figure 11 It is part of the enhancement drive system.

[0029] Figure 14 yes Figure 9 A schematic perspective view of the lower part of the tower, showing Figure 11 It is part of the enhancement drive system.

[0030] Figure 15 yes Figure 9A schematic perspective view of the lower portion of the tower, showing its use in conjunction with the tower. Figure 11 It is part of a multi-enhancement drive system.

[0031] Figure 15A yes Figure 15 A magnified view of the boost drive system.

[0032] Figure 16A yes Figures 11-15 A schematic side view of the lifting drive system in an operating position.

[0033] Figure 16B yes Figures 11-15 A schematic side view of the lifting drive system in another operating position.

[0034] Figure 17 It is a schematic side view of a tower or frame with a lifting drive system.

[0035] Figure 18A yes Figure 17 A schematic side view of the upper part of a tower or frame, in which the elevator assembly is in one position.

[0036] Figure 18B yes Figure 17 A schematic side view of the upper portion of a tower or frame, with the elevator assembly in another location.

[0037] Figure 19 It is used for towers or frames. Figure 17 A schematic top view of a portion of the boost drive system.

[0038] Figure 20A This is a schematic side view of part of the boost drive system.

[0039] Figure 20B This is a schematic diagram of a lifting drive system positioned along a frame or tower. Detailed Implementation

[0040] The following discloses a lift drive system for an energy storage and transmission system, which is operable to convert electrical energy into potential energy and generate electricity from the potential energy when electricity is needed. The energy storage and transmission system can be operably coupled to a power grid for stabilizing the grid and delivering electricity to residential, commercial, and / or industrial consumers.

[0041] Figures 1-4A portion of a lifting drive system 2000 for use in a tower system (e.g., tower 1100 of U.S. Patent No. 17 / 304,980, incorporated herein by reference) is shown. System 2000 includes an electric motor 2100 having an output shaft 2110 (e.g., a drive shaft) attached to a clutch 2200. A shaft 2300 (e.g., a driven shaft) is coupled to the opposite end of the clutch 2200 such that the clutch 2200 is located between the motor 2100 and the shaft 2300. Shaft 2300 has a first portion 2310 and a second portion 2320. In one embodiment, a braking assembly 2400 is coupled to shaft 2300. For example, the braking assembly 2400 may be at least partially disposed between the first portion 2310 and the second portion 2320 of shaft 2300. In one embodiment, the braking assembly 2400 includes a brake disc 2410 and a brake pad mechanism 2420. The brake disc is mounted around a shaft 2300 between a first portion 2310 and a second portion 2320. The brake pad mechanism is disposed on both sides of the disc 2410 and is operable to selectively engage the disc 2410, thereby frictionally engaging the disc 2410 to suppress (e.g., prevent) rotation of the disc 2410 and thus prevent rotation of the shaft 2300, and to selectively disengage from the disc 2410 to allow rotation of the disc 2410 and thus unimpeded rotation of the shaft 2300. Reference Figure 4 The end 2330 of shaft 2300 can be connected to electric motor 2500, as described further below. In one embodiment, electric motor 2500 can be a 50 kW motor and can be an asynchronous motor. In one embodiment, electric motor 2100 can be an 800 kW to 1000 kW motor and can be a synchronous motor. Although Figures 1-7 A lifting drive system 2000 disposed at the bottom of the tower and a steel strip extending upward from the bottom of the tower are shown; however, one skilled in the art will recognize that the lifting drive system 2000 may be mounted on the top of the tower (e.g., tower 1100 of U.S. Patent Application No. 17 / 304,980) and the steel strip may extend downward from the top of the tower.

[0042] like Figure 3As shown, the strip 1520 may extend around the shaft 2300, for example, around a first portion 2310 of the shaft 2300 (e.g., the strip 1520 may directly contact the shaft 2300). In one embodiment, the shaft 2300 (e.g., the first portion 2310 and the second portion 2320) has a coating (e.g., polyurethane) that provides a good coefficient of friction for engagement with the strip 1520. The strip 1520 is not coated (e.g., not embedded in polyurethane). Although not shown, the strip 1520 may also extend around a second portion 2320 of the shaft 2300. The strip 1520 may be made of metal (e.g., steel). In one embodiment, the strip 1520 may be made of steel and have a thickness of approximately 0.3 mm and a width of approximately 200-500 mm. The strip 1520 may directly engage the shaft 2300 (e.g., engage the first portion 2310 and / or the second shaft portion 2320). Optionally, the first portion 2310 and the second portion 2320 of the shaft 2300 are coated with polyurethane and provide suitable frictional engagement (e.g., a suitable coefficient of friction) with the strip 1520. The strip 1520 may be flat (e.g., having a generally rectangular cross-section) when linearly positioned.

[0043] Figure 5 An example tower 2700 including a lifting drive system 2000 is shown. One or more strips 1520 extend between a shaft 2300 (e.g., extending around at least a portion of a first portion 2310 and / or a second portion 2320) and a roller assembly 2800 located at the top of the tower 2700. Continuing to refer to Figure 5 and Figure 6 A strip 1520 (e.g., a steel strip) may be attached to the roller assembly 2800 at end 2820 and extend to the compartment 2900 or counterweight 2920 (e.g., extending around an axis of the compartment 2900 or counterweight 2920), and return to at least a portion of the rollers 2810 of the roller assembly 2800 and extend over at least a portion of the rollers of the roller assembly. Thereafter, the strip 1520 may return in another direction and extend to and around an axis 2300 (e.g., around a first portion 2310). Although Figure 6 Only a strip 1520 extending around a set (Group A) of rollers 2810 is shown, but one skilled in the art will recognize that the strip 1520 may also extend around... Figure 6Another set (Group B) of rollers 2810 extends, and in a similar manner to that described above, such that at least a portion of the strip 1520 extends about the shaft 2300 (e.g., about a second portion 2320). Both sets of strips 1520 can be used to attach to the compartment 2900 and the counterweight 2920. For example, in relation to U.S. Patent Application No. 17 / 304980 (which is incorporated herein by reference), Figure 13 Two sets of strips 1520 can extend around at least a portion of the proximal beam 1430' of the elevator cage 1400' to support the weight of the elevator cage 1400'.

[0044] Figure 6A A schematic diagram shows the arrangement of a strip (e.g., a steel strip) 1520 around a first portion 2310 and a second portion 2320 of a shaft 2300, rollers 2810, and proximal beams 1430', 1430'' for the compartment 2900 and the counterweight 2920, respectively, the strip terminating at end 2820. As discussed in more detail below, the shaft 2300 will be positioned only in one direction (e.g., Figure 6A The shaft 2300 rotates clockwise, as the motor 2100 can be a synchronous motor that operates continuously by means of electricity from the power grid. The rotation of the shaft 2300 causes the belt 1520 to move to the left, thereby raising the compartment 2900 and lowering the counterweight 2920. Figure 6A The system 2000 has a motor 2100 and a shaft 2300 located on the ground and an end 2820 located at an upper height (e.g., top) of the tower or frame. However, one skilled in the art will recognize that the lifting drive system 2000 can be implemented with a motor 2100 located at the top of the tower or frame, as further described below; in such an embodiment, a belt 1520 extends on opposite sides of the shaft 2300 such that the belt 1520 on one side is connected to the compartment, while the belt 1520 on the opposite side is connected to the counterweight. In one embodiment, the weight of the compartment 2900 can be approximately the same as the weight of the counterweight 2920. For example, the weight of the compartment 2900 and the counterweight 2920 can each be approximately 10 tons. In one embodiment, the weight of each block that can be lifted by the compartment 2900 can be greater than the weight of the compartment 2900. For example, the weight of the block can be approximately 30 tons.

[0045] In one embodiment, a fine-tuning mechanism (e.g., a hydraulic system) may be attached to the end 2820 of the strip 1520 and may provide fine-tuning of the position of the elevator cage assembly 1400, for example, by adjusting the position of the end 2820 of the strip 1520. For example, such a fine-tuning mechanism may be used to compensate for elongation of the steel strip 1520 during use, or to compensate for misalignment between the elevator cage assembly 1400 and a floor or level of the tower or frame from which blocks are picked up or transported.

[0046] Figure 7 An embodiment of the boost drive system 2000 is shown, and Figure 8 It shows Figure 7 The lifting drive system is located on top of the tower or frame 3100. (Reference) Figure 7 The electric motor 2100 has two output shafts (not shown) connected to two clutches 2200A and 2200B located on opposite sides of the motor 2100. These clutches are connected to shafts 2300A and 2300B having first shaft portions 2310A and 2310B and second shaft portions 2320A and 2320B, respectively. Braking assemblies 2400A and 2400B are located between the first shaft portions 2310A and 2310B and the second shaft portions 2320A and 2320B. Shafts 2300A and 2300B have end portions 2330A and 2330B. Although not shown, an electric motor similar to the electric motor 2500 can be operatively connected to each of the end portions 2330A and 2330B.

[0047] refer to Figure 8 Steel strip 1520A may extend at least partially around first portion 2310A and second portion 2320A, and is operatively coupled to a compartment 1400A traveling within the elevator shaft 3130A of the frame or tower 3100. Steel strip 1520B may extend at least partially around first portion 2310B and second portion 2320B, and is operatively coupled to a compartment 1400B traveling within the elevator shaft 3130B of the frame or tower 3100. Although not shown, portions of strips 1520A and 1520B extending on the first shaft portions 2310A and 2310B and the second shaft portions 2320A and 2320B are designed to... Figure 5 They are connected to the counterweight in a similar way to the counterweight 2920.

[0048] refer to Figures 7-8 In operation, the electric motor 2100 can be connected to the power grid and operate continuously relying on grid power. The shaft 2110 of the motor 2100 rotates in only one direction. Figure 8The diagram shows a compartment 1400B at a lower height on tower 3100 and a compartment 1400A at a higher height on tower 3100. The compartment 1400B is held at a lower height (e.g., to pick up a block and move it to a higher height) by disengaging clutch 2200B from motor 2100 and engaging brake 2400B to maintain the compartment 1400B in a vertical position. Once the compartment 1400B is ready to be lifted, clutch 2200B is gradually engaged and brake 2400B is gradually disengaged until clutch 2200B is fully engaged (e.g., disengaged), allowing rotation of shaft 2110 of motor 2100 to rotate shaft 2300B, thereby lifting compartment 1400B (e.g., by pulling up steel belt 1520B and dragging it across first section 2310B and second section 2320B). As compartment 1400B is raised, a counterweight (not shown) operably coupled to the other side of steel belt 1520B is lowered. Once compartment 1400B reaches the desired higher height of tower 3100, clutch 2200B disengages and brake 2400B engages, allowing the block to be removed from compartment 1400B. Once the block is removed from compartment 1400B and compartment 1400B is ready to be lowered, the compartment can be lowered in the same manner as described below for lowering compartment 1400A.

[0049] Continue to refer to Figure 8 When compartment 1400B is ready to be raised, compartment 1400A is at a higher height, ready to be lowered. At this higher position, clutch 2200A is disengaged, and brake 2400A is engaged to allow the block to be removed from compartment 1400A. Once compartment 1400A is unloaded, brake 2400A disengages, and clutch 2200A remains disengaged. Motor 2500, attached to end 2330A of shaft 2300A, rotates shaft 2300A in the opposite direction to rapidly lower compartment 1400A to a lower height to pick up another block. Motor 2500 can operate in conjunction with a variable frequency drive to accurately position compartment 1400A during lowering. Once a block is loaded onto compartment 1400A and compartment 1400A is ready to be raised, the compartment can be raised in the same manner as described above for raising compartment 1400B.

[0050] In this manner, one of clutches 2200A and 2200B is always engaged, and the other of clutches 2200B and 2200A is always disengaged, while one of compartments 1400A and 1400B is raised, and the other of compartments 1400B and 1400A is lowered. Therefore, electrical continuity is achieved by releasing one clutch (e.g., once the block is raised and its compartment is ready to be lowered) and engaging the other clutch (e.g., once the block is loaded onto the compartment and ready to be raised). Advantageously, motor 2100 operates continuously using grid power and does not use a gearbox or power electronics, thereby making the lifting system 2000 less complex and less costly. Furthermore, while motor 2100 operates continuously using grid power, the cost of electricity is relatively low when the motor is not lifting a load.

[0051] To lower the block from a higher height on tower 3100 to a lower height for generating and transmitting electricity, a modified version of the process described above for lowering compartment 1400A is used. The circuit of asynchronous motor 2500 is disconnected, brake 2400A is released, and motor 2500 is allowed to rotate in the opposite direction, allowing the generated electricity to be transmitted to the power grid. Once compartment 1400A reaches the lower height, brake 2400A is engaged.

[0052] Figures 9-10 An embodiment of an energy storage and delivery system 1000 is illustrated, which is used to move a block 1300 (e.g., in the Z direction or vertical direction) between different rows or layers 1140 of a frame or tower 1100 of the system 1000 using a lift cage assembly 1400'. The frame or tower 1100 has multiple modules (e.g., 3 modules, 12 modules, etc.) in the depth (or Y) direction. Each module may have multiple columns and rows or layers 1140.

[0053] In the illustrated embodiment, the trolley 3000 is positioned on top of the frame or tower 1100 and can be selectively moved laterally (e.g., in the X direction or horizontal direction) along guide rails or tracks located on top of the frame or tower 1100 by an actuator (e.g., a linear actuator). The lift cage assembly 1400' is connected to one or more cables or strips 1520 (e.g., one or more steel strips) extending from the lift cage assembly 1400', along rollers 3050, 3060 of the trolley 3000, and toward the lifting drive system 2000'.

[0054] Cables or strips 1520 extend on one or more rollers or pulleys of the lifting drive system 2000', extend toward and on roller R located at the top of tower 1100, and then extend downward to counterweight CW. Cables or strips 1520 used with the lifting drive system 2000' can be used with the aforementioned... Figures 1-8 The same cable or ribbon used with the lifting drive system 2000 is as described in the example. Figures 9-10 As shown, the lifting drive system 2000' is located at the bottom portion of the frame or tower 1100 (e.g., at or below the bottom row or layer 1140).

[0055] Upgrade the drive system 2000' similar to Figures 1-4 and Figure 7 The lifting drive system 2000 in the figure (e.g., having the same components). Therefore, the reference numerals used to represent the various components of the lifting drive system 2000' are the same as those used to identify... Figures 1-4 and Figure 7 The reference numerals for corresponding components in the lift drive system 2000 are the same, except that an apostrophe (') has been added to the reference numerals. Therefore, in addition to the descriptions below, the structure and description of the various features of the lift drive system 2000, and how it operates and is controlled, are also understood to apply to... Figures 9-10 The corresponding features of the boost drive system 2000' in the middle.

[0056] The lift cage assembly 1400' may have a lift cage 1410' that moves laterally relative to the base 1420' (e.g., to pick up block 1300 from floor 1140 or to transport block 1300 to floor 1140). The lift cage assembly 1400' moves up and down along the tower 1100 via a lifting drive system 2000' that moves (e.g., translates) the cable or strip 1520 (e.g., to cause the lift cage assembly 1400' to rise and the counterweight CW to fall, or to cause the lift cage assembly 1400' to fall and the counterweight CW to rise). Advantageously, the trolley 3000 is selectively moved laterally (e.g., actuated to move) via a linear actuator (e.g., a hydraulic actuator or pneumatic actuator) (e.g., moving simultaneously with the movement of the elevator cage 1410' relative to the base 1420'), such that when the elevator cage 1410' moves laterally relative to the base 1420' to pick up the block 1300 from the row or floor 1140 or to transport the block 1300 to the row or floor 1140, the cable or strip 1520 remains substantially vertical. Advantageously, this suppresses (e.g., prevents) the cable or strip 1520 from exerting an oblique force or moment on the lift cage assembly 1400' (e.g., on the lift cage 1410'), which could cause it to exert a force on the guide rails of the frame or tower 1100, thereby generating a lower load or stress on the guide rails during the operation of the lift cage assembly 1400' to pick up or transport the block 1300.

[0057] like Figure 9 As shown, the tower 1100 may have multiple modules in the Y direction or depth direction, each module having a lift cage assembly 1400' that allows the block 1300 to move between layers 1140 of the module, and each module having a trolley 3000 on which one or more cables or strips 1520 extend, and each module having a lifting drive system 2000' on which the cables or strips 1520 extend and then continue to the counterweight CW associated with the lift cage assembly 1400' for the module. Figure 10 Two lift cage assemblies 1400' in different modules are shown. Each of the two lift cage assemblies is connected to a separate associated counterweight CW, whose associated cable or strip 1520 extends on a separate associated trolley 3000 and toward the lifting drive system 2000'. Figures 9-10 The right side of system 1000 is shown. The left side of the system (not shown) may be... Figures 9-10The structure shown is mirrored such that system 1000 has another set of trolleys 3000 (e.g., one per module) and elevator cage assemblies 1400' (e.g., one per module) on the left side of tower or frame 1100 (e.g., each module has trolleys and elevator cage assemblies 1400' on both the left and right sides of tower or frame 1100).

[0058] Figures 11-15A A partial view of an energy storage and transmission system 1000' is shown, which is used to move a block 1300 (e.g., in the Z direction or vertical direction) between different rows or layers 1140' of a frame or tower 1100' via a lift drive system 2000' and a lift cage assembly 1400'. The lift drive system 2000' is similar to Figures 9-10 The lifting drive system 2000' (e.g., having the same components) is similar to the lifting drive system 2000. Therefore, the reference numerals used to represent the various components of the lifting drive system 2000' are the same as those used to identify... Figures 9-10 The corresponding components of the lifting drive system 2000' in the figure have the same reference numerals. Therefore, Figures 9-10 The structure and description of the various features of the 2000' boost drive system, as well as how it operates and is controlled, should also be understood to apply to... Figures 11-15 The corresponding features of the lifting drive system 2000' in the frame or tower 1100' are, in addition to those described below. Figures 9-10 The frame or tower 1100' is similar (e.g., identical). For clarity, a portion of the frame or tower 1100' on which the trolley 3000' moves is not included in these figures to show the components of the trolley 3000'. Reference Figures 11-13 This excludes a portion of the rollers R' attached to the frame or tower 1100' for each module M1, M2. Although only two modules M1, M2 are shown for the frame or tower 1100' as described above, the frame or tower may have multiple modules (e.g., six modules or 12 modules in the depth direction or Y direction).

[0059] The difference between system 1000' and system 1000 is that the trolley 3000' has rollers 3050' and 3060' disposed below the frame 3010' of the trolley 3000', on which cables or strips 1520 extend. In another embodiment, the rollers 3050' and 3060' may be disposed above the frame 3010'. The trolley 3000' moves laterally along the frame or tower 1100' via wheels 3020' (e.g., four wheels 3020') attached to the frame 3010' (e.g., a truss frame that rolls on rails or tracks on or above the top layer 1140' of the frame or tower 1100'). As previously mentioned, the tower or frame 1100' may have multiple modules (e.g., in the Y direction or depth direction). Figure 11 As shown, each module M1, M2 may have a separate trolley 3000' that moves on the top layer 1140' of module M1, M2 on tower 1100', and cables or strips 1520' extend on rollers 3050', 3060' of each trolley 3000' and extend to the associated elevator cage assembly 1400', and via its associated lifting drive system 2000' to the counterweight CW. Trolley 3000' also has an actuator (e.g., a linear actuator, hydraulic or pneumatic piston cylinder assembly) 3030' that is coupled to frame 3010' and can be actuated to cause trolley 3000' to move laterally on frame or tower 1100' (e.g., to keep cables or strips 1520' substantially vertical during movement of elevator cage 1410' relative to base 1420'). For example, in the case where the actuator 3030' is a piston-cylinder assembly 3030' (e.g., a hydraulic assembly), the piston can move within the cylinder of the piston-cylinder assembly 3030' to move the frame 3010', and thus cause the trolley 3000' to move along the top of the tower 1100' (e.g., in the X direction, such as...). Figure 12 (As shown).

[0060] refer to Figures 14-15A The lifting drive system 2000' for each module of tower 1100' can be located at ground level on the frame or tower 1100' (e.g., at or below the bottom layer or row 1140'). In one embodiment, the lifting drive system 2000' can be spaced apart from and separate from the ends of the frame or tower 1100'. In another embodiment, the lifting drive system 2000' can be mounted or coupled to the bottom portion of the frame or tower 1100'. Figures 14-15 (Not included). For example, Figure 15As shown, in one embodiment, the lifting drive systems 2000' of each of the modules for the frame or tower 1100' can be arranged linearly to each other. Each lifting drive system 2000' has an electric motor 2500' with an encoder 2525' that rotates a shaft 2300' (e.g., a driven shaft) on which a cable or strip 1520 extends at least partially. In one embodiment, the motor 2500' can be a 50 kW or 55 kW asynchronous motor and receives power from the power grid. When the hoist cage assembly 1400' is unloaded (e.g., when it is not carrying block 1300), the motor 2500' can be operated to rotate the shaft 2300' in one direction to lift the hoist cage assembly 1400' (e.g., from one floor 1140' to another floor 1140'), and when the hoist cage assembly is unloaded, to rotate the shaft 2300' in the opposite direction to lower the hoist cage assembly 2300' (e.g., from one floor 1140' to another floor 1140'). When the hoist cage assembly 1400' carries block 1300 (e.g., to lift or lower block 1300), the motor 2500' is not operated.

[0061] The lift drive system 2000' also includes a braking assembly 2400', which is selectively operable to brake the rotation of the shaft 2300' (e.g., to lock the position of the lift cage assembly 1400'), for example, when the block 1300 is picked up by the lift cage assembly 1400' from the row or floor 1140', or when the block 1300 is unloaded from the lift cage assembly 1400' onto the row or floor 1140'. The lift drive system 2000' also includes a clutch 2200' coupled to the shaft 2300' (e.g., via the braking assembly 2400') and rollers 2185' (e.g., gears, pulleys) coupled to the clutch 2200'. A belt 2175' connects the rollers 2185' to the drive shaft 2150' (e.g., via rollers extending therefrom the belt 2175'). Figure 15 As shown, shaft 2150' extends to electric motor 2100', such that operation of electric motor 2100' causes drive shaft 2150' to rotate, and drive shaft can transmit rotational motion to rollers 2185' via belt 1175' associated with rollers 2185' of each lifting drive system 2000' (e.g., each of the modules for the frame or tower 1100'). Figure 15As shown, the lifting drive systems 2000' of all modules located on one side (e.g., the right side) of the frame or tower 1100' (e.g., all lifting drive units) can be arranged in a straight line with each other. In one embodiment, an electric motor 2100' can also be coupled to and rotated on a drive shaft (e.g., similar to drive shaft 2150') located on the opposite side (e.g., the left side) of the frame or tower 1100', which is coupled to the lifting drive system 2000' for the modules located on the left side of the frame or tower 1100'. The electric motor 2100 can be a 6.5MW motor and can be a synchronous motor connected to the power grid.

[0062] Continue to refer to Figure 14-15A System 1000' can operate in charging or discharging mode. When operating in charging mode, motor 2100' rotates drive shaft 2150' in a certain direction such that when clutch 2200' is engaged and brake 2400' is disengaged, the motor rotates shaft 2300' (e.g., via belt 2175' and roller 2185'), causing the lift cage assembly 1400' to be lifted (e.g., when transporting block 1300 from a lower row or floor 1140' to a higher row or floor 1140'). Clutch 2200' selectively disengages to disconnect drive shaft 2150' from rotation of shaft 2300' in the lifting drive system 2000' (e.g., the lifting drive system of a specific module of the frame or tower 1100') (e.g., to allow motor 2500' to move the lift cage assembly 1400' between floors 1140' when the lift cage assembly 1400' is unloaded).

[0063] refer to Figure 15 When system 1000' operates in charging mode (e.g., in the morning, at noon), clutch 2200' of the lifting drive system 2000' for different modules of the frame or tower 1100' in the depth direction (e.g., the Y direction) can be operated to stagger the movement (e.g., lifting) of the different modules of the lift cage assembly 1400' via motor 2100' for a predetermined time period (e.g., four seconds). In one example, the lifting drive system 2000' of the first module of the frame or tower 1100' can engage clutch 2200' to allow rotation of drive shaft 2150' via motor 2100', thereby lifting its associated lift cage assembly 1400' (e.g., load-bearing block 1300) to a higher height. Four seconds later, at this point, the first elevator cage assembly 1400' has reached its destination at floor 1140', and the clutch 2200' of the lifting drive system 2000' for the next module (e.g., an adjacent module) can be engaged to allow its associated elevator cage assembly 1400' to be lifted, and so on.

[0064] When system 1000' operates in discharge mode, the phase of electric motor 2100' is switched, causing drive shaft 2150' to rotate in the opposite direction, and clutches 2200' of the lifting drive system 2000' for the various modules of tower or frame 1100' can also be selectively actuated to stagger the movement (e.g., lowering) of the hoist cage assembly 1400' of different modules by motor 2100' for a predetermined time period (e.g., four seconds). The same example described above for operating clutch 2200' of lifting drive system 2000' to raise the hoist cage assembly 1400' of the module can be applied to lowering hoist cage assembly 1400' (e.g., when carrying block 1300). When hoist cage assembly 1400' is lowered, electric motor 2100' generates electricity (e.g., by slowing the rate at which hoist cage assembly 1400' is lowered so that the hoist cage assembly is not in free fall) and delivers the electricity to the power grid.

[0065] As described above, the frame or tower 1100' of system 1000' may have a lift cage assembly 1400' on the left and right sides of each module of the frame or tower 1100', each having an associated trolley 3000' and a lifting drive system 2000'. Just as the operation of the lifting drive system 2000' can be staggered on one side (as described above), the operation of the lifting drive system 2000 / on the opposite side of the frame or tower 1100' can also be staggered. Furthermore, for each module, the operation of the lifting drive system 2000' and the associated lift cage assembly 1400' on one side of the frame or tower 1100' can be opposite to or in the opposite direction to the operation on the other side of the frame or tower 1100'. For example, for each module of the frame or tower 1100, when the elevator cage 1400' on one side reaches the upper level (e.g., unloaded to pick up a block, or loaded with a block to unload a block), the elevator cage 1400' on the other side reaches the lower level (e.g., unloaded to pick up a block, or loaded with a block to unload a block).

[0066] Figures 16A-16B A schematic diagram is shown of a lifting drive system 2000' and a trolley 3000' in two different locations for a module of the frame or tower used in system 1000'. (See diagram for reference.) Figure 16AAs shown, a cable or strip 1520' extends from the counterweight CW, upward toward and on the roller R', downward toward and around the lifting drive system 2000' (e.g., around the shaft 2300' of the lifting drive system 2000'). The cable or strip 1520' then extends upward toward the trolley 3000' and at least partially on rollers 1350' and 1360', after which it extends downward to the lift cage assembly 1400' (e.g., to the lift cage 1410' of the lift cage assembly 1400'). Figure 16A In this configuration, the elevator cage assembly 1400' is in a retracted position (e.g., the elevator cage 1410' is above the base 1420'), such as when moving up and down between floors 1140' (e.g., unloaded or when on the load-bearing block 1300). Figure 16B In this configuration, the elevator cage assembly 1400' is in an extended position (e.g., the elevator cage 1410' extends relative to the base 1420'), such as when the elevator cage 1410' moves toward the row or floor 1140' to pick up or drop the block 1300. As the elevator cage 1410' moves relative to the base 1420', the trolley 3000' is actuated (e.g., by a linear actuator 3030') to move laterally (in the X direction), thereby keeping the cable or strip between the roller 1360' and the elevator cage assembly 1400' vertical (e.g., to advantageously suppress or prevent the cable or strip 1520' from exerting an oblique force or moment on the elevator cage assembly 1400', which could cause it to exert a force on the guide rails of the frame or tower).

[0067] Figures 17-19 An energy storage and delivery system 1000'' is shown, which is used to move a block 1300 (e.g., in the Z direction or vertical direction) between different rows or layers 1140'' of a frame or tower 1100'' using a lifting drive system 2000'' via a trolley 3000'' and a lift cage assembly 1400''. The system 1000'', frame or tower 1100'', trolley 3000'', lift cage assembly 1400'', and lifting drive system 2000'' are similar to those described above for... Figures 9-16B The system 1000, 1000', frame or tower 1100, 1100', trolley 3000, 3000', elevator cage assembly 1400', and lifting drive system 2000' are described. Therefore, the reference numerals used to represent the various components of system 1000'', frame or tower 1100'', trolley 3000'', elevator cage assembly 1400'', and lifting drive system 2000'' are consistent with... Figures 11-16BThe reference numerals used to identify the corresponding components, frames or towers 1100, 1100', trolleys 3000, 3000', elevator cage assembly 1400'', and lifting drive device 2000' of systems 1000, 1000' are the same, except that the reference numerals end with "". Therefore, Figures 11-16B The structure and description of the various features of systems 1000, 1000', frame or tower 1100, 1100', trolley 3000, 3000', elevator cage assembly 1400'', and lifting drive system 2000', as well as how they operate and are controlled, should also be understood to apply to... Figures 17-19 The corresponding features of the system 1000'', frame or tower 1100'', trolley 3000'', elevator cage assembly 1400'' and lifting drive system 2000'', in addition to those described below.

[0068] The difference between trolley 3000'' and trolley 3000' is that the rollers 3050'' and 3060'' extending from the cable or strip 1520'' are positioned above (not below) the frame 3010'' of trolley 3000''. The difference between elevator cage assembly 1400'' and elevator cage assembly 1400'' is that it has an elevator cage 1410'' that can simultaneously pick up, transport (e.g., up or down on the frame or tower 1100'') and deliver to two adjacent vertical rows or layers 1140'' (e.g., within the same module of the frame or tower 1100''). The base 1420'' of elevator cage assembly 1400'' can be two bases, such as... Figure 18A , Figure 18B As shown, the elevator cage 1410'' can move laterally relative to these two bases (e.g., towards or away from the ends of the row or floor 1140''). As described above, although the trolley 3000'', elevator cage assembly 1400'', and lifting drive system 2000'' are only shown on the right side of the system 1000'', the frame or tower 1100'' of the system 1000'' can also have elevator cage assemblies 1400'' on the left side for each module of the frame or tower 1100'', each having an associated trolley 3000'' and lifting drive system 2000''. The structure on the left side of the frame or tower 1100'' can be Figure 17 A mirror image of the structure shown.

[0069] The difference between the lifting drive system 2000'' and the lifting drive systems 2000, 2000'' is that the lifting drive systems 2000'' (or lifting drive units) for adjacent modules M1, M2 are offset from each other in the X direction (i.e., not in a straight line). The lifting drive system 2000'' (for each module in the frame or tower 1100'') does not include a clutch and has a motor 2100'' that is operated using a variable frequency drive 2125'' to raise or lower the associated lift cage assembly 1400'' (whether the lift cage assembly is unloaded or carrying block 1300) between rows or floors 1140'' of the frame or tower 1100'' (e.g., by rotating the driven shaft 2300''). Therefore, a motor 2100'' is used in the lifting drive system 2000'' to lift or lower the associated lift cage assembly 1400'' (e.g., by switching the rotation direction of the motor 2100''' shaft via cable or strip 1520''), regardless of whether the lift cage assembly is unloaded or carrying block 1300. When the lift cage assembly 1400'' carrying block 1300 is lowered from a higher level 1140'' of the frame or tower 1100'' to a lower level 1140'', the motor 2100'' generates electricity (which can be transmitted to the power grid) in the same manner as discussed above for motor 2100' (e.g., by slowing the descent of the lift cage assembly 1400'' so that it is not in freefall). In one embodiment, motor 2100'' may be a 1 MW electric motor generator.

[0070] Figures 20A-20B An energy storage and delivery system 1000''' is shown for moving a block 1300 (e.g., in the Z or vertical direction) along a frame or tower 1100''' using a lifting drive system 2000''' via a lift cage assembly 1400'''. Some of the features of the system 1000''', the frame or tower 1100''', the lift cage assembly 1400''', and the lifting drive system 2000''' are similar to those described above. Figures 1-19 The system 1000, 1000', 1000'', frame or tower 1100, 1100', 1100'', elevator cage assembly 1400A, 1400B, 1400', 1400'', and lifting drive system 2000, 2000''' are described. Therefore, the reference numerals used to identify the various components of system 1000''', frame or tower 1100''', elevator cage assembly 1400''', and lifting drive system 2000''' are consistent with... Figures 1-19The reference numerals used to identify the corresponding components of systems 1000, 1000', 1000'', frames or towers 1100, 1100', 1100''', elevator cage assemblies 1400A, 1400B, 1400', 1400'', and lifting drive systems 2000, 2000'' are the same, except that the reference numerals end with "'''". Therefore, the structure and description of the various features of systems 1000''', frames or towers 1100''', elevator cage assemblies 1400''', and lifting drive systems 2000''' are consistent with those of systems 1000''', frames or towers 1100''', elevator cage assemblies 1400''', and lifting drive systems 2000'''. Figures 1-19 The corresponding components, frames, or towers 1100, 1100, 1100''', elevator cage assemblies 1400A, 1400B, 1400', 1400'', and lifting drive systems 2000, 2000''' used for identification systems 1000, 1000', 1000'' have the same structure and description, and their operation and control are also understood to apply to them. Figures 20A-20B The corresponding features of system 1000''', frame or tower 1100''', elevator cage assembly 1400''' and lifting drive system 2000'''.

[0071] Figures 20A-20B An energy storage and transmission system 1000''' is shown, which includes a lifting drive system 2000''' positioned on a frame or tower 1100'''. The lifting drive system 2000''' may include a shaft 2300'''. Cables or strips 1520''' may extend around and contact the shaft 2300'''. Cables or strips 1520''' may extend vertically along the frame or tower 1100''' (e.g., along the Z-axis). Additionally, the lifting drive system 2000''' may be positioned at the bottom portion of the frame or tower 1100'''. The frame or tower 1100''' may be multiple modules (e.g., 3 modules, 12 modules, etc.) in the depth (or Y) direction. Each module may have multiple columns and rows or layers.

[0072] Cables or strips 1520''' may extend on one or more rollers or pulleys 2810''' positioned at the top portion of the frame or tower 1100'''. Cables or strips 1520''' used with the lifting drive system 2000''' may be related to the above-mentioned... Figures 1-19The cables or strips 1520, 1520', 1520'' used in conjunction with the lifting drive systems 2000, 2000', 2000'' are the same. The cables or strips 1520''' may be attached to and extend from the lifting cage assembly 1400''', and may extend vertically upward and around one or more rollers or pulleys 2810''' positioned at the top of the frame or tower 1100'''. One or more cables or strips 1520''' may extend vertically downward along the frame or tower 1100''', around the axis 2300''', and vertically upward along the frame or tower 1100'''. The cables or strips 1520''' may extend around additional rollers or pulleys 2810''' located at the top of the frame or tower 1100''', and extend to the counterweight CW. Rotation of shaft 2300''' in the first direction causes the belt 1520''' to move the hoist cage assembly 1400''' downward and the counterweight CW upward. Rotation of shaft 2300''' in the second direction (opposite to the first direction) causes the belt 1520''' to move the hoist cage assembly 1400''' upward and the counterweight CW downward. The cable or belt 1520''' frictionally engages shaft 2300'''.

[0073] The lifting drive system 2000 may further include a first roller 2720 and a second roller 2740. The first roller 2720 may be positioned upward from, spaced apart from and close to, the shaft 2300. The outer surface of the first roller 2720 may be aligned with the outer surface of the shaft 2300 along a tangential plane extending along a vertical axis (e.g., the Z-axis). The first roller 2720 may be larger than the shaft 2300 (e.g., having a larger diameter). The first roller 2720 may contact a portion of the cable or strip 1520 extending vertically from the shaft 2300 toward the lift cage assembly 1400 (e.g., the first cable portion 1522). The second roller 2740''' (e.g., the center of the second roller 2740''') can be positioned upward and radially outward from the shaft 2300''' (e.g., from the center of the shaft 2300'''). The shaft 2300''' can be sized as small as possible to maintain contact between the shaft 2300''' and the cable or strip 1520'''. The second roller 2740''' can be larger than the shaft 2300''' (e.g., having a larger diameter). A portion of the second roller 2740''' can intersect a portion of the shaft 2300''' along a vertical axis (e.g., the Z-axis). That is, a vertical plane tangent to the outer surface of the second roller 2740''' intersects the shaft 2300''', and a vertical plane tangent to the outer surface of the shaft 2300''' intersects the second roller 2740'''. The second roller 2740''' may contact a portion of the cable or strip 1520''' extending vertically toward the counterweight CW (e.g., the second cable portion 1524''') such that the cable or strip 1520''' is angled between the shaft 2300''' and the second roller 2740''' (e.g., an angled strip segment 1540''' relative to the vertical direction). When the shaft 2300''' rotates to translate the cable or strip 1520''', the first roller 2720''' and the second roller 2740''' may rotate in opposite directions to the rotation of the shaft 2300''' (e.g., the first roller 2740''' and the second roller 2740''' are counter-rotating rollers).

[0074] The first roller 2720''' is positioned above and tangentially to the shaft 2300''' to maintain the vertical orientation of the cable or strip 1520''' extending from the shaft 2300''' and along the frame or tower 1100''' (e.g., forming a vertically extending strip segment 1530''' between the shaft 2300''' and the first roller 2720'''). The first roller 2720''' may have a first contact area 1532''' on the cable or strip 1520''' to maintain the vertical orientation of the cable or strip 1520''' along the frame or tower 1100'''. Advantageously, because the elevator cage assembly 1400''' is very heavy (e.g., heavier than the counterweight CW), the first roller 2720''' can prevent excessive loads (e.g., tension) from being applied to the cable or strip 1520''' along the first cable portion 1522'''. The first contact area 1532''' can be very small (e.g., the contact between the cable or strip 1520''' and the first roller 2720''' is 1 mm). When the elevator cage assembly 1400''' moves up and down, the first roller 2720''' can minimize vibration of the cable or strip 1520 (e.g., the first contact area 1532''' prevents the cable or strip 1520''' from vibrating before it contacts the shaft 2300'''). When the vertically extending strip segment 1530''' (e.g., due to the cable or strip 1520''' contact with the first roller 2720''') contacts the shaft 2300''', the vertically extending strip segment 1530''' does not vibrate, and there is no air (or air gap) interfering with the contact area between the shaft 2300''' and the cable or strip 1520'''. Advantageously, the first roller 2720''' maintains frictional contact between the shaft 2300''' and the cable or strip 1520''' (e.g., by suppressing or minimizing vibration in the strip segment 1530''').

[0075] The second roller 2740''' is positioned to increase the winding angle 1600''' of the cable or strip 1520''' around the shaft 2300'''. For example, the second roller 2740''' can be positioned above and offset from the shaft 2300''', such that the cable or strip 1520''' has a winding angle 1600''' of approximately 210-220 degrees around the shaft 2300''' (the cable or strip 1520''' contacts the shaft 2300''' at this winding angle). The winding angle 1600''' can be determined (e.g., optimized) based on the dimensions (e.g., weight) of the elevator cage assembly 1400''' and / or the counterweight CW. To change the winding angle 1600''', the dimensions of the second roller 2740''' can be changed. The second roller 2740''' may have a second contact area 1542''' on the cable or strip 1520''', so that the cable or strip 1520''' is angled from the vertical orientation along the frame or tower 1100''' (e.g., forming an angled strip segment 1540'''). Advantageously, by increasing the winding angle 1600''' (e.g., forming an angled strip segment 1540'''), the frictional engagement between the cable or strip 1520''' and the shaft 2300''' increases, and the force (e.g., tension) along the cable or strip 1540''' can be higher, which can make the lift cage assembly 1400''' heavier. In addition, increasing the winding angle 1600''' can improve the safety margin of the system 1000''' and can achieve a lighter counterweight CW. The force (e.g., tension) along the vertically extending strip segment 1530''' can be greater than the force along the angled strip segment 1540'''.

[0076] Additional Examples

[0077] In embodiments of the present invention, a lift drive system for an energy storage system and a method for operating the lift drive system may meet any of the following conditions:

[0078] Clause 1. A system for an energy storage and transmission system, comprising: a tower or frame; a lifting drive unit including: an electric motor coupled to and operable to rotate the driven shaft; a braking assembly operably coupled to the driven shaft and selectively operable to brake the rotation of the driven shaft; a clutch coupled to the driven shaft, the braking assembly disposed between the clutch and the electric motor; a first roller and a second roller radially spaced apart from the driven shaft; and a steel strip partially wound around the driven shaft and frictionally engaging the driven shaft, the steel strip having a first portion and a second portion respectively wound around the driven shaft. The strip consists of two parts: a first part extending from the driven shaft and contacting the first roller; a second part extending from the driven shaft and contacting the second roller; wherein the first roller holds the first part of the steel strip in a vertical orientation; wherein the second roller angles the second part of the steel strip to increase the winding angle of the steel strip on the driven shaft; a compartment connected to the first part of the steel strip; and a counterweight connected to the second part of the steel strip; wherein rotation of the driven shaft causes the steel strip to translate, thereby moving the compartment and the counterweight; and wherein the first roller and the second roller rotate in a direction opposite to the driven shaft.

[0079] Clause 2. The system according to Clause 1, wherein the tower or frame includes one or more roller assemblies positioned at the top portion of the tower.

[0080] Clause 3. The system according to Clause 2, wherein the one or more roller assemblies include a first set of rollers and a second set of rollers, wherein the steel strip extends from the driven shaft and extends around a portion of the first set of rollers and the second set of rollers.

[0081] Clause 4. The system according to Clause 1, wherein the winding angle is 210 degrees.

[0082] Clause 5. The system according to Clause 1, wherein the lifting drive unit is disposed at the bottom portion of the tower or frame.

[0083] Clause 6. The system according to Clause 1, wherein the tension along a first portion of the steel strip is greater than the tension along a second portion of the steel strip.

[0084] Clause 7. The system according to Clause 6, wherein the outer diameter of the second roller is greater than the outer diameter of the driven shaft.

[0085] Article 8. The system according to Article 1, wherein the driven shaft has a first section and a second section, wherein the braking assembly is disposed between the first section and the second section, the first section and the second section being respectively configured to engage the steel strip.

[0086] Clause 9. The system according to Clause 1, wherein the lifting drive unit is a plurality of lifting drive units arranged in a straight line with each other.

[0087] Clause 10. The system according to Clause 1, wherein the compartment is an elevator cage, wherein the elevator cage is configured to move relative to the base, and wherein the elevator cage is operable to pick up or transport blocks to one or more rows positioned along the tower or frame.

[0088] Item 11. A system for energy storage and transmission includes: a tower or frame; a lifting drive unit comprising: an electric motor coupled to and operable to rotate the driven shaft; a first roller and a second roller radially spaced apart from the driven shaft; and a steel strip partially wound around and frictionally engaged with the driven shaft, the steel strip having a first portion and a second portion wound around the driven shaft, the first portion extending from the driven shaft and contacting the first roller, the second portion extending from the driven shaft and contacting the second roller, wherein the first roller holds the first portion of the steel strip in a vertical orientation, and wherein the second roller angles the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft; a compartment coupled to the first portion; and a counterweight coupled to the second portion; wherein rotation of the driven shaft causes the steel strip to translate in a first direction to lift the compartment and lower the counterweight, and wherein the first roller and the second roller rotate in a direction opposite to the driven shaft.

[0089] Clause 12. The system according to Clause 11, wherein the tower or frame includes one or more roller assemblies positioned at the top portion of the tower.

[0090] Clause 13. The system according to Clause 11, wherein the first roller is configured to minimize vibration of the steel strip as the driven shaft rotates to translate the steel strip.

[0091] Clause 14. The system according to Clause 11, wherein the winding angle is 210 degrees.

[0092] Clause 15. The system according to Clause 11, wherein the lifting drive unit is disposed at the bottom portion of the tower or frame.

[0093] Clause 16. The system according to Clause 11, wherein the outer diameter of the second roller is greater than the outer diameter of the driven shaft.

[0094] Clause 17. The system according to Clause 11, wherein the driven shaft has a first section and a second section, and a braking assembly is disposed between the first section and the second section, the first section and the second section being respectively configured to engage the steel strip.

[0095] Clause 18. A lifting drive system for an energy storage and transmission system, the lifting drive system comprising: an electric motor coupled to and operable to rotate the driven shaft; and a steel strip partially wound around the driven shaft and frictionally engaging the driven shaft, the steel strip having a first portion and a second portion respectively wound around the driven shaft, the first portion extending from the driven shaft and contacting a first roller, the second portion extending from the driven shaft and contacting a second roller, wherein the first roller holds the first portion of the steel strip in a vertical orientation, wherein the second roller angles the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft, and wherein the first roller and the second roller rotate in a direction opposite to the driven shaft.

[0096] Clause 19. The lifting drive system according to Clause 18, wherein the outer diameter of the second roller is greater than the outer diameter of the driven shaft, wherein the second roller is positioned upward and radially outward from the driven shaft, and wherein the outer surface of the second roller and the outer surface of the driven shaft intersect along a vertical plane.

[0097] Clause 20. The lifting drive system according to Clause 18, wherein the first roller is positioned upward from and close to the driven shaft, wherein the outer surface of the first roller is tangent to the outer surface of the driven shaft.

[0098] While certain embodiments of the invention have been described, these embodiments are presented by way of example only and are not intended to limit the scope of this disclosure. In fact, the novel methods and systems described herein can be embodied in a variety of other forms. Furthermore, various omissions, substitutions, and changes can be made to the systems and methods described herein without departing from the spirit of this disclosure. The appended claims and their equivalents are intended to cover such forms or modifications that fall within the scope and spirit of this disclosure. Therefore, the scope of the invention is defined only by reference to the appended claims.

[0099] Features, materials, characteristics, or groups described in connection with a particular aspect, embodiment, or example should be understood to be applicable to any other aspect, embodiment, or example described in this section or elsewhere in this specification, unless incompatible with it. All features disclosed in this specification (including any appended claims, abstract, and drawings) and / or all steps of any method or process so disclosed may be combined in any combination, except that at least some of such features and / or steps are mutually exclusive combinations. This protection is not limited to the details of any of the foregoing embodiments. This protection extends to any novel feature or any novel combination of features disclosed in this specification (including any appended claims, abstract, and drawings), or to any novel step or any novel combination of steps in any method or process so disclosed.

[0100] Furthermore, certain features described in this disclosure in the context of individual embodiments may also be implemented in combination in a single embodiment. Conversely, various features described in the context of a single embodiment may also be implemented individually or in any suitable sub-combination in multiple embodiments. Moreover, although features may be described above as functioning in certain combinations, in some cases, one or more features from a claimed combination may be removed from that combination, and that combination may be claimed as a sub-combination or a variation thereof.

[0101] Furthermore, while operations may be depicted in the accompanying drawings or described in a specific order in the specification, such operations do not need to be performed in the specific order shown or in sequential order, nor is it necessary to perform all operations to achieve the desired result. Other operations not depicted or described may be incorporated into the example methods and processes. For example, one or more additional operations may be performed before, after, simultaneously with, or between any of the stated operations. Furthermore, in other embodiments, operations may be rearranged or reordered. Those skilled in the art will understand that in some embodiments, the actual steps taken in the illustrated and / or disclosed processes may differ from the steps shown in the accompanying drawings. According to embodiments, some steps described above may be removed, and other steps may be added. Furthermore, the features and properties of the specific embodiments disclosed above may be combined in different ways to form additional embodiments, all of which fall within the scope of this disclosure. Moreover, the separation of various system components in the above embodiments should not be construed as requiring such separation in all embodiments, and it should be understood that the described components and systems can generally be integrated together in a single product or packaged into multiple products.

[0102] For the purposes of this disclosure, certain aspects, advantages, and novel features have been described herein. Not all such advantages may be realized according to any particular embodiment. Therefore, for example, those skilled in the art will recognize that this disclosure may be embodied or carried out in a manner that achieves one or a set of advantages as taught herein, without necessarily achieving other advantages that may be taught or suggested herein.

[0103] Unless otherwise specifically stated or understood in the context in which they are used, conditional language such as "can," "could," "might," or "may" is generally intended to convey that certain embodiments include certain features, elements, and / or steps, while other embodiments do not include certain features, elements, and / or steps. Therefore, such conditional language is not generally intended to mean that one or more embodiments require features, elements, and / or steps in any way, nor does it mean that one or more embodiments must include logic for determining whether such features, elements, and / or steps are included in any particular embodiment or whether they will be performed in any particular embodiment, with or without user input or prompting.

[0104] Unless otherwise specifically stated, conjunctions such as “at least one of X, Y, and Z” should be understood in conjunction with the context in which items, terms, etc., can be X, Y, or Z. Therefore, such conjunctions are not generally intended to imply that some embodiments require the presence of at least one of X, at least one of Y, and at least one of Z.

[0105] The degree language used herein, such as the terms “approximately,” “about,” “roughly,” and “substantially,” indicates a value, quantity, or characteristic that is close to the stated value, quantity, or characteristic while still performing the desired function or achieving the desired result. For example, the terms “approximately,” “about,” “roughly,” and “substantially” can refer to a quantity that is less than 10%, less than 5%, less than 1%, less than 0.1%, and less than 0.01%. As another example, in some embodiments, the terms “substantially parallel” and “substantially parallel” refer to a value, quantity, or characteristic that deviates from perfect parallelism by less than or equal to 15°, 10°, 5°, 3°, 1°, or 0.1°.

[0106] The scope of this disclosure is not intended to be limited by the specific disclosure of preferred embodiments in this section or other parts of this specification, and may be defined by the claims set forth in this section or other parts of this specification, or by claims to be filed in the future. The language of the claims will be interpreted broadly based on the language used in the claims and is not limited to the examples described in this specification or during the course of the application, which will be interpreted as non-exclusive.

Claims

1. A system for energy storage and transmission, comprising: Tower or frame; The boost drive unit includes: An electric motor, which is connected to a driven shaft and is operable to rotate the driven shaft; A braking assembly operably coupled to the driven shaft and selectively operable to brake the rotation of the driven shaft; A clutch is connected to the driven shaft, and a braking assembly is disposed between the clutch and the electric motor; The first roller and the second roller are radially spaced apart from the driven shaft; and A steel strip, partially wound around and frictionally engaged with the driven shaft, the steel strip having a first portion and a second portion each wound around the driven shaft, the first portion extending from the driven shaft and contacting a first roller, the second portion extending from the driven shaft and contacting a second roller, wherein the first roller holds the first portion of the steel strip in a vertical orientation, and wherein the second roller angles the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft; The compartment, which is connected to the first portion of the steel belt; and A counterweight, which is connected to the second part of the steel strip; The rotation of the driven shaft causes the steel belt to translate, thereby moving the compartment and the counterweight, and the first roller and the second roller rotate in the opposite direction to the driven shaft.

2. The system according to claim 1, wherein, The tower or frame includes one or more roller assemblies positioned at the top portion of the tower.

3. The system according to claim 2, wherein, The one or more roller assemblies include a first set of rollers and a second set of rollers, wherein the steel strip extends from the driven shaft and extends around a portion of the first set of rollers and the second set of rollers.

4. The system according to claim 1, wherein, The winding angle is 210 degrees.

5. The system according to claim 1, wherein, The lifting drive unit is located at the bottom part of the tower or frame.

6. The system according to claim 1, wherein, The tension along the first portion of the steel strip is greater than the tension along the second portion of the steel strip.

7. The system according to claim 6, wherein, The outer diameter of the second roller is larger than the outer diameter of the driven shaft.

8. The system according to claim 1, wherein, The driven shaft has a first section and a second section, wherein the braking assembly is disposed between the first section and the second section, and the first section and the second section are each configured to engage the steel strip.

9. The system according to claim 1, wherein, The lifting drive unit consists of multiple lifting drive units arranged in a straight line with each other.

10. The system according to claim 1, wherein, The compartment is an elevator cage, wherein the elevator cage is configured to move relative to the base, and wherein the elevator cage is operable to pick up blocks or transport blocks to one or more rows positioned along the tower or frame.

11. A system for energy storage and transmission, comprising: Tower or frame; The boost drive unit includes: An electric motor, which is coupled to a driven shaft and is operable to rotate the driven shaft; and The first roller and the second roller are radially spaced apart from the driven shaft; and A steel strip, partially wound around and frictionally engaged with the driven shaft, the steel strip having a first portion and a second portion each wound around the driven shaft, the first portion extending from the driven shaft and contacting a first roller, the second portion extending from the driven shaft and contacting a second roller, wherein the first roller holds the first portion of the steel strip in a vertical orientation, and wherein the second roller angles the second portion of the steel strip to increase the winding angle of the steel strip on the driven shaft; The compartment, which is connected to the first part; and A counterweight, which is connected to the second part; The rotation of the driven shaft causes the steel belt to translate in a first direction to lift the compartment and lower the counterweight, and the first roller and the second roller rotate in the opposite direction to the driven shaft.

12. The system according to claim 11, wherein, The tower or frame includes one or more roller assemblies positioned at the top portion of the tower.

13. The system according to claim 11, wherein, The first roller is configured to minimize vibration of the steel strip as the driven shaft rotates to translate the steel strip.

14. The system according to claim 11, wherein, The winding angle is 210 degrees.

15. The system according to claim 11, wherein, The lifting drive unit is located at the bottom part of the tower or frame.

16. The system according to claim 11, wherein, The outer diameter of the second roller is larger than the outer diameter of the driven shaft.

17. The system according to claim 11, wherein, The driven shaft has a first section and a second section, and a braking assembly is disposed between the first section and the second section, the first section and the second section being respectively configured to engage the steel strip.

18. A lifting drive system for an energy storage and transmission system, the lifting drive system comprising: An electric motor is connected to a driven shaft and is operable to rotate the driven shaft; and A steel strip, which is partially wound around and frictionally engaged with the driven shaft, has a first portion and a second portion each wound around the driven shaft. The first portion extends from the driven shaft and contacts a first roller, and the second portion extends from the driven shaft and contacts a second roller. The first roller holds the first portion of the steel strip in a vertical orientation, and the second roller angles the second portion of the steel strip to increase the winding angle of the steel strip. The first roller and the second roller rotate in a direction opposite to the driven shaft.

19. The lifting drive system according to claim 18, wherein, The outer diameter of the second roller is larger than the outer diameter of the driven shaft, wherein the second roller is positioned upward and radially outward from the driven shaft, and wherein the outer surface of the second roller and the outer surface of the driven shaft intersect along a vertical plane.

20. The lifting drive system according to claim 18, wherein, The first roller is positioned upward from and close to the driven shaft, wherein the outer surface of the first roller is tangent to the outer surface of the driven shaft.

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