A modular energy storage device for high-voltage power systems

Abstract

The present invention relates to the technical field of electric energy storage and discloses a modular energy storage device for a high-voltage power system. The device comprises an energy storage box, wherein a tray with a three-dimensional restraining mechanism is installed at the bottom of the inner cavity of the energy storage box. An annular airflow channel is formed between an energy storage element located above the tray and the inner wall of the energy storage box. A plurality of windows are evenly arranged on the circumferential sidewalls of the energy storage box. A heat dissipation assembly is assembled around the periphery of each window. A retractable transmission assembly is correspondingly configured on the outside of each heat dissipation assembly. A base installed at the bottom of the energy storage box has a built-in height adjustment device, on which an adjustment member that can move vertically along the base is assembled. The adjustment member is in transmission connection with the retractable transmission assembly. The device can adaptively adjust the heat dissipation mode according to the operating temperature of the energy storage element, so as to reduce energy consumption and improve economy while ensuring safety.

Description

Technical Field

[0001] The present invention relates to the technical field of electric energy storage, and more particularly to a modular energy storage device for a high-voltage power system. Background Art

[0002] In electric energy storage systems, battery energy storage has become the mainstream energy storage method due to its controllable cost, wide application scenarios and high safety. In order to increase the output voltage of the energy storage element, multiple battery cells are usually required to work in series. However, this method will generate a lot of heat when running under load. If the heat dissipation is insufficient, the battery temperature will rise, seriously affecting its safety and service life. For example, the invention patent with announcement number CN119208824B discloses a modular energy storage device, which fixes the battery module by setting a limit frame in the energy storage box, and adopts a closed circulation system composed of a liquid storage box and a bellows, using insulating oil for heat conduction and cooling. Specifically, the solution includes: a limit frame is provided on the inner wall of the energy storage box to fix the modular energy storage element; liquid storage boxes are installed on the five sides and the door of the box, and the interior is filled with insulating oil; adjacent liquid storage boxes are connected by bellows to form a circulation path; scrapers and rubber pads are provided in the liquid storage box to enhance contact heat conduction;

[0003] This solution has the following drawbacks:

[0004] Single heat dissipation mode: Relying solely on the physical heat conduction of insulating oil, it is unable to dynamically adjust the heat dissipation intensity (heat dissipation mode) according to the actual operating temperature of the battery, resulting in high energy consumption; Lack of adaptability: When the battery is running at low load, the heat dissipation system still operates in a fixed mode, resulting in energy waste and poor economic efficiency.

[0005] Therefore, there is an urgent need for an efficient energy storage system that can adaptively adjust the heat dissipation mode according to the operating temperature of the energy storage element, so as to reduce energy consumption and improve economy while ensuring safety. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular energy storage device for a high-voltage power system, which solves the problems of insufficient safety and excessive energy consumption caused by the single heat dissipation mode and inability to dynamically adjust the existing energy storage elements, thereby achieving a balance between efficient heat dissipation and energy-saving operation.

[0007] The present invention provides the following technical solution: a modular energy storage device for a high-voltage power system, comprising an energy storage box, wherein a tray with a three-dimensional restraining mechanism is mounted at the bottom of the inner cavity of the energy storage box, an annular airflow channel is formed between an energy storage element located above the tray and the inner wall of the energy storage box, a plurality of windows are evenly distributed along the circumferential sidewalls of the energy storage box, a heat dissipation assembly is mounted on the periphery of each window, and a retractable transmission assembly is correspondingly configured on the outside of each heat dissipation assembly, a base mounted at the bottom of the energy storage box has a built-in height adjustment device, on which an adjustment member that can move vertically along the base is assembled, the adjustment member being in transmission connection with the retractable transmission assembly; a fan is disposed within the base below the height adjustment device;

[0008] The heat dissipation assembly includes an outer frame, which is installed on the outside of the circumferential window of the energy storage box. The inner cavity of the outer frame is arranged in sequence from the outside to the inside. The two are fixedly assembled and only contact the outer frame surface. The piston-type propulsion member configured on the outside of the outer frame is integrally formed by a pressure plate and a double connecting rod. The double connecting rod is movable through the outer frame and is rigidly connected to the reciprocating plate. The surface of the double connecting rod is wrapped with a spring located between the pressure plate and the outer frame.

[0009] The retraction and extension transmission assembly consists of a guide inclination arm, a cross-wall fixed beam, a sliding rod and a retreat arm, wherein the two ends of the cross-wall fixed beam extend across the outer frame and are fixedly connected to the side wall of the energy storage box; the guide inclination arm is formed as one piece of the guide section and the inward inclination section, and the intersection of the two sections forms a corner node, which is rotatably connected to the outward-extending shaft end of the cross-wall fixed beam; the side wall of the guide section is symmetrically provided with a track, and the sliding rod can be slidably set in the track, and its shaft end is hinged to the retreat arm, while the other end of the retreat arm is rigidly connected to the pressure plate of the piston-type propulsion member.

[0010] Furthermore, the diversion and heat dissipation part includes a heat exchange cabin, a heat conductive layer, a transmission cabin, a screw, a micro motor and a lifting oiler; wherein the transmission cabin is fixedly connected to the bottom of the heat exchange cabin, and the two are jointly installed on the inner side of the push plate; a screw is provided for rotation at the center of the heat exchange cabin, and its bottom end is coaxially assembled with the micro motor in the transmission cabin; the lifting oiler movable in the inner cavity of the heat exchange cabin is connected to the screw; a heat conductive layer is provided on one side wall of the heat exchange cabin away from the push plate.

[0011] Furthermore, the lifting oiler includes a U-shaped frame, an oiling cylinder and spoiler beads, wherein the U-shaped frame is threadedly connected to the screw, the U-shaped frame is rotatably connected to the inside of the oiling cylinder, the oiling cylinder is attached to the inner surface of the heat conductive layer, and the oiling cylinder is filled with irregularly distributed spoiler beads; wherein the oiling cylinder and the spoiler beads are both hollow porous structures.

[0012] Furthermore, a matching nested corrugated tube is used inside the connecting tube installed on the side wall of the outer frame, one end of which is sealed with the connecting tube, and the other end passes through the recursive plate and is fixedly connected with the heat exchange chamber.

[0013] Furthermore, the adjusting member is provided with an integrally formed radial wing plate on its circumference, which extends radially and passes through a vertical guide opening preset on the side wall of the base, and a groove is provided at the end of the wing plate; the inwardly inclined section of the guide inclination arm passes through the vertical guide opening of the base and extends into its inner cavity; the groove at the end of the wing plate of the adjusting member forms a contact-type limiting fit with the inwardly inclined section of the guide inclination arm.

[0014] Furthermore, the height adjustment device adopts a telescopic cylinder, the telescopic end of which needs to be accurately inserted into the central positioning hole of the adjustment member and rigidly connected and assembled therewith, and the base of the telescopic cylinder is rigidly connected to the inner wall of the base through the mounting bracket.

[0015] Furthermore, the guide portion arranged on the periphery of the energy storage box is located on the lower side of the heat dissipation assembly, and is connected in series with the heat dissipation assembly of the circumferential array through the guide portion and the fluid drive assembly installed on the outer side of the base.

[0016] Furthermore, the guide part and the fluid drive assembly form a fluid communication system, and the fluid drive assembly is composed of a circulation pump, a refrigerator and a delivery pipe; the circulation pump is fixedly installed on the outer surface of the base, and its pumping end and discharge end are respectively connected to the refrigerator through delivery pipes; at the same time, the refrigerator is connected to the guide part through another set of delivery pipes, thereby forming a stable one-way cold flow circulation path inside the guide part, and the guide part is connected to the guide and heat dissipation part.

[0017] Furthermore, an auxiliary adjustment assembly is installed above the guide tilt arms arranged oppositely on the left and right sides or the front and rear sides. The auxiliary adjustment assembly includes a tension rod, a cabin plate and a traction rope, wherein the tension rod is fixedly connected to the top of the guide tilt arm, the cabin plate is hinged at the hatch of the energy storage box, and the tension rod and the cabin plate are connected by a traction rope.

[0018] Furthermore, a positioning detection system consisting of a signal transmitter and a signal receiver is provided inside the base; the signal transmitter is fixedly mounted on the telescopic motion end of the telescopic cylinder, and the signal receiver is arranged at a corner position of the inner wall of the base.

[0019] The technical effects and advantages of the present invention are as follows:

[0020] When the adjusting part is driven downward by the telescopic cylinder of the present invention, the groove of the wing plate continuously presses the lower half of the guide tilt angle arm to generate an outward thrust, so that the guide tilt angle arm deflects centripetally with the cross-wall fixed beam as the axis, drives the sliding rod to slide up along the track and pushes the retreat arm to maintain horizontal force transmission; after the thrust overcomes the spring resistance through the piston-type propulsion member, it drives the recursive plate and the guide and heat dissipation part to move centripetally, so that the four groups of guide and heat dissipation parts are tightly fitted to the side wall of the component, realizing stepless switching of the heat dissipation mode; during the whole process, the guide tilt angle arm synchronously completes the compound movement of bottom expansion and top aggregation, ensuring the accuracy and reliability of the adaptive adjustment of the heat dissipation mechanism.

[0021] The present invention automatically determines that the shape change is completed and switches the mode through the positioning detection system; the controller synchronously controls the fluid drive assembly and the diversion and heat dissipation part to start the composite heat dissipation mechanism: the insulating oil in the diversion part is forced to circulate and cool through the circulating pump-refrigerator closed-loop cooling circuit, and at the same time, the micro-motor drives the screw to drive the lifting oiler to move back and forth in the heat exchange chamber. Its porous structure oiling cylinder and spoiler beads continuously ooze insulating oil during rotation, forming a dynamic micro-circulation coating, which not only realizes uniform coverage of the surface of the heat conductive layer, but also significantly improves the heat dissipation efficiency through the synergistic effect of oil circuit circulation and mechanical movement, and finally achieves efficient composite heat dissipation of the energy storage element.

[0022] The present invention drives the tension rod to tilt centripetally through the guide tilt arm, and completes the hatch closure through the linkage of the cabin plate with the traction rope, thereby realizing high temperature warning and component locking; at the same time, the cooling air flow of the fan is discharged downward through the gaps in the four corners, maintaining efficient heat dissipation while ensuring that the cabin plate is closed, thereby realizing the coordinated operation of protection and cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the overall structure of the present invention and its partial cross-section.

[0025] Figure 3 For the present invention Figure 2 The diagram of the remaining structure without the auxiliary adjustment assembly, fan, fluid drive assembly and controller.

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the elevation angle of the medium structure.

[0027] Figure 5 It is a schematic diagram of the connection structure of the heat dissipation assembly, retractable transmission component, adjustment member and guide part of the present invention.

[0028] Figure 6 For the present invention Figure 5 Schematic diagram of the structure at point A in the middle.

[0029] Figure 7 It is a structural schematic diagram of the diversion and heat dissipation part of the present invention.

[0030] Figure 8 For the present invention Figure 7 Schematic diagram of the structure at point B.

[0031] Figure 9 It is a structural schematic diagram of the lifting oiler of the present invention.

[0032] Figure 10 For the present invention Figure 9 Schematic diagram of the structure at point C in the middle.

[0033] Figure 11 It is a schematic diagram of the connection structure of the energy storage box, tray, heat dissipation assembly, retractable transmission assembly and auxiliary adjustment assembly of the present invention.

[0034] Figure 12 It is a schematic diagram of the connection structure of the base, telescopic cylinder, adjustment member, fan and alignment detection system of the present invention.

[0035] Figure 13 It is a schematic diagram of the connection structure between the guide part and the fluid drive assembly of the present invention.

[0036] The accompanying drawings are marked as follows: 1. energy storage box; 2. tray; 3. heat dissipation assembly; 301. outer frame; 302. recursive plate; 303. heat dissipation part; 3031. heat exchange chamber; 3032. heat conductive layer; 3033. transmission chamber; 3034. screw; 3035. micro motor; 3036. lifting oiler; 30361. U-shaped frame; 30362. oiling cylinder; 30363. spoiler; 304. piston propulsion member; 305. connecting pipe; 306. bellows; 307. spring; 4. retractable transmission Components; 401, guide inclination arm; 402, cross-wall fixed beam; 403, sliding rod; 404, retreat arm; 5, adjustment member; 6, guide part; 601, main pipeline; 602, branch pipe; 7, auxiliary adjustment assembly; 701, tension rod; 702, cabin plate; 703, traction rope; 8, telescopic cylinder; 9, base; 10, fan; 11, fluid drive assembly; 1101, circulation pump; 1102, refrigerator; 1103, delivery pipe; 12, controller; 13, signal transmitter; 14, signal receiver. DETAILED DESCRIPTION

[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The modular energy storage device of a high-voltage power system involved in the present invention is not limited to the various structures described in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative efforts fall within the scope of protection of the present invention.

[0038] Reference Figures 1-13The present invention provides a modular energy storage device for a high-voltage power system, comprising an energy storage box 1, wherein a tray 2 with a three-dimensional constraint mechanism is installed at the bottom of the inner cavity of the energy storage box 1, and the three-dimensional constraint mechanism arranged on the top wall thereof can accurately wrap the bottom end of the energy storage element; an annular airflow channel is formed between the energy storage element located above the tray 2 and the inner wall of the energy storage box 1; a plurality of windows are evenly arranged on the circumferential side wall of the energy storage box 1, and a heat dissipation assembly 3 is assembled on the periphery of each window; a retractable transmission assembly 4 is correspondingly configured on the outside of each heat dissipation assembly 3, a height adjustment device is built in the base 9 installed at the bottom of the energy storage box 1, and an adjustment member 5 that can move vertically along the base 9 is assembled on the base 9, and the adjustment member 5 is transmission-connected to the retractable transmission assembly 4; a fan 10 arranged inside the base 9 is located directly below the height adjustment device; a guide portion 6 arranged on the outer periphery of the energy storage box 1 is located on the lower side of the heat dissipation assembly 3, and is connected in series with the fluid drive assembly 11 installed on the outer side of the base 9 through the guide portion 6 and the heat dissipation assembly 3 of the circumferential array, thereby forming a closed-loop cooling circuit system.

[0039] In this embodiment, it should be specifically explained that the tray 2 is configured in a grid pattern, with its four corners precisely machined to fit snugly with the inner corners of the energy storage box 1, and rigidly connected using high-strength bolts. The three-dimensional constraint mechanism provided on the upper surface of the tray 2 is composed of four sets of vertical angle plates. When the energy storage element is placed inside the energy storage box 1, the three-dimensional constraint mechanism of the tray 2 can achieve all-round positioning and locking of the element, effectively suppressing displacement or shaking caused by external forces such as vibration and impact during transportation or operation. The installation position of the tray 2 must ensure that it is located below the window on the side wall of the energy storage box 1, and its arrangement must not interfere with the centripetal convergent motion trajectory of the multiple heat dissipation assemblies 3 distributed along the circumferential array.

[0040] The height adjustment device can be replaced by a telescopic cylinder 8 or other devices with equivalent height adjustment functions. The specific implementation of the telescopic cylinder 8 includes but is not limited to a pneumatic cylinder, a hydraulic cylinder or an electric push rod. The telescopic end of the telescopic cylinder 8 must be accurately inserted into the central positioning hole of the adjustment member 5 and rigidly connected and assembled therewith. The base of the telescopic cylinder 8 is rigidly connected to the inner wall of the base 9 through a mounting bracket.

[0041] The adjusting member 5 is provided with an integrally formed radial wing plate on its circumference. The wing plate extends radially and passes through a vertical guide opening preset on the side wall of the base 9. A groove is provided at the end of the wing plate.

[0042] In this article, all the positional relationships we discuss about front, back, left, and right are based on Figure 1-Figure 3These directions are defined by the perspective presented. They have no actual geographical or physical meaning. They are merely a reference framework to help readers understand the content of the article more intuitively. In this way, we can more clearly show the relative position relationship between the various parts, making the entire discussion process easier to understand and follow. Please note that this custom direction identification is only for internal use in this article and does not represent any absolute direction or position in the real world.

[0043] Reference Figure 2-Figure 10 The heat dissipation assembly 3 consists of an outer frame 301, a recursive plate 302, a guide and heat dissipation part 303, a piston-type propulsion member 304, a connecting pipe 305, a bellows 306 and a spring 307, wherein the outer frame 301 is installed on the outside of the circumferential window of the energy storage box 1, and the recursive plate 302 and the guide and heat dissipation part 303 are arranged in sequence in its inner cavity from the outside to the inside, and the two are fixedly assembled and only in surface contact with the outer frame 301; the piston-type propulsion member 304 configured on the outside of the outer frame 301 is integrally formed by a pressure plate and a double connecting rod, and the double connecting rod is movably passed through the outer frame 301 and rigidly connected to the recursive plate 302, and the surface of the double connecting rod is wound with a spring 307 located between the pressure plate and the outer frame 301; a matching nested bellows 306 is used inside the connecting pipe 305 installed on the side wall of the outer frame 301, one end of which is sealed with the connecting pipe 305, and the other end is connected to the guide and heat dissipation part 303;

[0044] The retractable transmission assembly 4 consists of a guide tilt arm 401, a cross-wall fixed beam 402, a sliding rod 403 and a retreat arm 404, wherein both ends of the cross-wall fixed beam 402 extend across the outer frame 301 and are fixedly connected to the side wall of the energy storage box 1; the guide tilt arm 401 is formed by integrally forming a guide section and an inward-inclined section, and the intersection of the two sections forms a corner node, which is rotatably connected to the outward-extending axial end of the cross-wall fixed beam 402; the side wall of the guide section is symmetrically provided with a track, and the sliding rod 403 is slidably arranged in the track, and its axial end is hinged to the retreat arm 404, while the other end of the retreat arm 404 is rigidly connected to the pressure plate of the piston-type propulsion member 304; the inward-inclined section of the guide tilt arm 401 passes through the vertical guide opening of the base 9 and extends into its inner cavity; the groove at the end of the wing plate of the adjusting member 5 forms a contact-type limit fit with the inward-inclined section of the guide tilt arm 401;

[0045] In this embodiment, it should be specifically explained that the heat dissipation portion 303 includes a heat exchange chamber 3031, a heat conductive layer 3032, a transmission chamber 3033, a screw 3034, a micro motor 3035 and a lifting oiler 3036; wherein the transmission chamber 3033 is fixedly connected to the bottom of the heat exchange chamber 3031, and the two are installed together on the inner side of the reciprocating plate 302; a screw 3034 is provided for rotation at the center of the heat exchange chamber 3031, and its bottom end is coaxially assembled with the micro motor 3035 in the transmission chamber 3033; the lifting oiler 3036 that moves in the inner cavity of the heat exchange chamber 3031 is transmission-connected to the screw 3034; a heat conductive layer 3032 is provided on one side wall of the heat exchange chamber 3031 away from the reciprocating plate 302;

[0046] The lifting lubricator 3036 can move vertically along the interior of the heat exchange chamber 3031. The lifting lubricator 3036 includes a U-shaped frame 30361, an oiling cylinder 30362, and spoiler beads 30363. The U-shaped frame 30361 is threadedly connected to the screw 3034. The U-shaped frame 30361 has an oiling cylinder 30362 rotatably connected thereto. The oiling cylinder 30362 is attached to the inner surface of the heat conductive layer 3032 and is filled with a plurality of irregularly distributed spoiler beads 30363. Both the oiling cylinder 30362 and the spoiler beads 30363 have a hollow, porous structure. The liquid level in the heat exchange chamber 3031 only needs to be above the initial position of the lifting lubricator 3036.

[0047] The bellows 306 passes through the reciprocating plate 302 and is fixedly connected to the heat exchange chamber 3031. The connection structure has dynamic adaptability; that is, the bellows 306 can produce elastic deformation with the relative movement of the reciprocating plate 302 and the heat dissipation part 303, while maintaining the integrity of the oil channel and the flow performance unaffected.

[0048] Reference Figure 2-Figure 6 and Figure 13 The flow guide 6 is composed of a main pipe 601 and a branch pipe 602. The main pipe 601 passes through the cross-wall fixed beam 402 to achieve axial positioning, and a number of branch pipes 602 are evenly distributed circumferentially on the top of the main pipe 601. Each branch pipe 602 is fixedly connected to the main pipe 601. At the same time, the other end of the branch pipe 602 is connected to the connecting pipe 305, thereby forming a complete communication path.

[0049] The guide part 6 and the fluid drive assembly 11 form a fluid communication system, and the fluid drive assembly 11 is composed of a circulation pump 1101, a refrigerator 1102 and a delivery pipe 1103; the circulation pump 1101 is fixedly installed on the outer surface of the base 9, and its pump end and discharge end are respectively connected to the refrigerator 1102 through the delivery pipe 1103; at the same time, the refrigerator 1102 is connected to the main pipeline 601 through another set of delivery pipes 1103, thereby forming a stable unidirectional cold flow circulation path inside the guide part 6.

[0050] Reference Figure 11 An auxiliary adjustment assembly 7 can be installed above the guide tilt arms 401 arranged opposite to each other on the left and right sides or the front and rear sides. The auxiliary adjustment assembly 7 includes a tension rod 701, a cabin plate 702 and a traction rope 703, wherein the tension rod 701 is fixedly connected to the top of the guide tilt arm 401, the cabin plate 702 is hinged at the hatch of the energy storage box 1, and the tension rod 701 and the cabin plate 702 are connected by a traction rope 703; when the guide tilt arm 401 maintains a neutral position, the tension rod 701 applies a constant tension to the cabin plate 702 through the traction rope 703, so that the cabin plate 702 maintains a preset half-open angle state.

[0051] Reference Figure 12 A positioning detection system consisting of a signal transmitter 13 and a signal receiver 14 is provided inside the base 9; the signal transmitter 13 is fixedly mounted on the telescopic motion end of the telescopic cylinder 8, and the signal receiver 14 is arranged at the corner position of the inner wall of the base 9; when the signal receiver 14 completes spatial alignment with the signal transmitter 13 and successfully receives the positioning signal emitted by it, it can output the corresponding position determination signal to the controller 12 serving as the control unit; the controller 12 synchronously outputs control instructions for the fluid drive assembly 11 and the diversion and heat dissipation part 303 based on the signal.

[0052] Working principle of the present invention:

[0053] A temperature threshold (35°C) is set for the operating temperature of the energy storage element, dividing it into a normal temperature operating mode and a high temperature operating mode. The energy storage element has a built-in temperature monitoring system (such as a temperature sensor) to detect the operating temperature in real time and determine the current mode, while outputting a control signal corresponding to the temperature mode to the controller 12.

[0054] When the components are in normal temperature operation mode, the fan 10 is controlled to vertically blow air to the energy storage components stored on the tray 2 and located in the energy storage box 1, causing natural airflow to flow vertically upward along the tray 2. A convection heat exchange channel is formed through the circumferential gap between the energy storage components and the energy storage box 1. After the airflow completes heat exchange with the energy storage components, it carries the heat and is discharged from the open hatch at the top of the energy storage box 1, achieving continuous heat dissipation. At this time, the hatch 702 is in a half-open state, indicating that the energy storage components are at normal temperature and can be safely removed.

[0055] When the element is in high-temperature operation mode, the telescopic end of the telescopic cylinder 8 is controlled to drive the adjusting member 5 assembled with it to move downward in the vertical direction. At this time, the grooves at the ends of the wing plates around the adjusting member 5 continuously press the lower half of the inward-inclined section of the guiding tilt angle arm 401, generating a radial outward thrust during the downward movement, forcing the guiding tilt angle arm 401 to deflect from the outside to the inside with the axial end of the cross-wall fixed beam 402 as the rotation center; this deflection action causes the upper half of the guiding section of the guiding tilt angle arm 401 to move closer to the energy storage box 1, triggering the circumferentially arranged guiding tilt angle arms 401 to synchronously complete the composite movement of radial expansion of the bottom end and centripetal convergence of the top end; during the inward buckling process of the guiding section of the guiding tilt angle arm 401, the sliding rod 403 slides up along the front and rear side wall tracks of the guiding section, and at the same time, the arm 404 adaptively adjusts its posture through the rotation connection structure with the sliding rod 403, always maintains a horizontal force state and transmits the thrust of the guide tilt arm 401 to the piston-type propulsion member 304; after the thrust overcomes the elastic resistance of the spring 307, the double-link drive of the piston-type propulsion member 304 drives the pusher plate 302 to move, and then drives the pusher plate 302 and the diversion and heat dissipation part 303 to perform centripetal displacement, and finally makes the four groups of diversion and heat dissipation parts 303 evenly distributed around the circumference fit tightly against the side wall of the energy storage element, completing the free switching of the heat dissipation mode; when the telescopic end of the telescopic cylinder 8 drives the assembled signal transmitter 13 to move downward and align with the signal receiver 14 at the corner of the inner wall of the base 9, the signal receiver 14 receives the signal emitted by the signal transmitter 13 The signal restores the communication connection, thereby determining that the shape-changing action is completed and the mode switching is realized; the signal receiver 14 then sends a determination signal to the controller 12, and the controller 12 synchronously outputs control instructions for the fluid drive assembly 11 and the diversion and heat dissipation part 303 according to the signal: first, the circulation pump 1101 and the refrigerator 1102 are started, and the two are connected in series through the delivery pipe 1103 to form a closed-loop cold circuit. The cold circuit connects the two ends of the main pipeline 601 to generate a unidirectional cold flow inside the guide part 6, forcing the insulating oil in the multiple heat exchange chambers 3031 to be sucked into the cold circuit through the guide part 6 for cooling, and then re-injected into the heat exchange chamber 3031 to realize active cooling; the micro motor 3035 is synchronously started to drive the screw rod 3034 connected to it to perform periodic forward and reverse rotation. The threaded lifting oiler 3036 is driven to perform reciprocating axial movement along the inner cavity of the heat exchange chamber 3031. During this process, the lifting oiler 3036 not only applies insulating oil to the attached heat conductive layer 3032, but also achieves enhanced efficiency through its hollow porous oiling barrel 30362 and built-in flow disturbance beads 30363. As the oiling barrel 30362 moves along the surface of the heat conductive layer 3032, its continuous rotation causes the insulating oil to continuously seep out from the holes on the surface of the oiling barrel 30362 and the flow disturbance beads 30363, forming a dynamic microcirculation coating mechanism. This significantly improves the uniformity of the insulating oil coverage on the surface of the heat conductive layer 3032 and the heat dissipation efficiency, ultimately achieving composite enhanced heat dissipation of the energy storage element.

[0056] As the guide section of the guide tilt arm 401 buckles inward, the tension rods 701 connected to its left and right top ends simultaneously tilt centripetally, driving the cabin panels 702 suspended by the traction ropes 703 to descend toward the hatch of the energy storage box 1. Ultimately, the symmetrically arranged cabin panels 702 complete the hatch top closing action, forming a high-temperature warning sign and restricting the removal of the energy storage element. At this time, the vertical blast airflow generated by the fan 10 returns downward through the circuitous channel formed by the gaps between the energy storage element and the four corners of the energy storage box 1, achieving compatible operation of the cabin panels 702 and the cooling system of the fan 10 while maintaining air circulation, so that the heat exchange airflow is discharged from the bottom.

[0057] When the temperature of the energy storage element drops to the normal temperature operation threshold, the telescopic end of the telescopic cylinder 8 drives the adjustment member 5 to perform a reverse reset action, and restores the components of the system to the initial standby state through the reverse motion trajectory.

[0058] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or modifications within the technical scope disclosed by the present invention; according to the technical plan and its improved conception of the present invention, these should be included under the protection of the present invention.

Claims

1. A modular energy storage device for a high-voltage power system, comprising an energy storage box (1), wherein a tray (2) with a three-dimensional restraining mechanism is installed at the bottom of the inner cavity of the energy storage box (1), an annular airflow channel is formed between an energy storage element located above the tray (2) and the inner wall of the energy storage box (1), a plurality of windows are evenly provided on the circumferential side wall of the energy storage box (1), and a heat dissipation assembly (3) is installed on the periphery of each window, characterized in that: Each heat dissipation assembly (3) is externally provided with a corresponding retractable transmission assembly (4); a base (9) installed at the bottom of the energy storage box (1) has a built-in height adjustment device, on which an adjustment member (5) that can move vertically along the base (9) is assembled, and the adjustment member (5) is connected to the retractable transmission assembly (4) in a transmission manner; a fan (10) is provided inside the base (9) and is located below the height adjustment device; The heat dissipation assembly (3) includes an outer frame (301), which is installed on the outer side of the circumferential window of the energy storage box (1), and the inner cavity of the outer frame (301) is sequentially arranged with a recursive plate (302) and a diversion and heat dissipation portion (303) from the outside to the inside, and the two are fixedly assembled and only contact the surface of the outer frame (301); the piston-type propulsion member (304) configured on the outer side of the outer frame (301) is integrally formed by a pressure plate and a double connecting rod, and the double connecting rod is movably passed through the outer frame (301) and is rigidly connected to the recursive plate (302), and a spring (307) located between the pressure plate and the outer frame (301) is wound around the surface of the double connecting rod; The retractable transmission assembly (4) is composed of a guide tilt arm (401), a cross-wall fixed beam (402), a sliding rod (403) and a retreat arm (404), wherein both ends of the cross-wall fixed beam (402) extend across the outer frame (301) and are fixedly connected to the side wall of the energy storage box (1); the guide tilt arm (401) is formed by integrally forming a guide section and an inward tilt section, and a corner node is formed at the intersection of the two sections, and the corner node is rotatably connected to the outward-extending shaft end of the cross-wall fixed beam (402); the side wall of the guide section is symmetrically provided with a track, and the sliding rod (403) is slidably arranged in the track, and its shaft end is hinged to the retreat arm (404), and the other end of the retreat arm (404) is rigidly connected to the pressure plate of the piston-type propulsion member (304); The adjusting member (5) is provided with an integrally formed radial wing plate on its circumference, the wing plate extending radially and penetrating a vertical guide opening preset on the side wall of the base (9), and a groove is provided at the end of the wing plate; the inwardly inclined section of the guide tilt angle arm (401) penetrates the vertical guide opening of the base (9) and extends into its inner cavity; the groove at the end of the wing plate of the adjusting member (5) forms a contact-type limiting fit with the inwardly inclined section of the guide tilt angle arm (401); An auxiliary adjustment assembly (7) is installed above the left and right or front and rear oppositely arranged guide tilt arms (401), the auxiliary adjustment assembly (7) comprising a tension rod (701), a cabin plate (702) and a traction rope (703), wherein the tension rod (701) is fixedly connected to the top of the guide tilt arm (401), the cabin plate (702) is hinged to the hatch of the energy storage box (1), and the tension rod (701) and the cabin plate (702) are connected via a traction rope (703).

2. The modular energy storage device for a high-voltage power system according to claim 1, characterized in that: The heat dissipation and diversion part (303) comprises a heat exchange chamber (3031), a heat conductive layer (3032), a transmission chamber (3033), a screw (3034), a micro motor (3035) and a lifting oiler (3036); wherein the transmission chamber (3033) is fixedly connected to the bottom of the heat exchange chamber (3031), and the two are installed together on the inner side of the reciprocating plate (302); a screw (3034) is provided at the center of the heat exchange chamber (3031), and the bottom end of the screw (3034) is coaxially assembled with the micro motor (3035) in the transmission chamber (3033); the lifting oiler (3036) is movable in the inner cavity of the heat exchange chamber (3031) and is connected to the screw (3034) in a transmission manner; and a heat conductive layer (3032) is provided on a side wall of the heat exchange chamber (3031) away from the reciprocating plate (302).

3. The modular energy storage device for a high-voltage power system according to claim 2, characterized in that: The lifting oiler (3036) comprises a U-shaped frame (30361), an oiling cylinder (30362) and spoiler beads (30363), wherein the U-shaped frame (30361) is threadedly connected to the screw rod (3034), the U-shaped frame (30361) is internally rotatably connected to the oiling cylinder (30362), the oiling cylinder (30362) is attached to the inner surface of the heat-conducting layer (3032), and the oiling cylinder (30362) is filled with irregularly distributed spoiler beads (30363); wherein the oiling cylinder (30362) and the spoiler beads (30363) both have a hollow porous structure.

4. The modular energy storage device for a high-voltage power system according to claim 2, characterized in that: A matching nested bellows (306) is used inside the connecting pipe (305) installed on the side wall of the outer frame (301), one end of which is sealedly connected to the connecting pipe (305), and the other end of which passes through the recursive plate (302) and is fixedly connected to the heat exchange chamber (3031).

5. The modular energy storage device for a high-voltage power system according to claim 1 or 4, characterized in that: The height adjustment device adopts a telescopic cylinder (8), the telescopic end of which needs to be accurately inserted into the central positioning hole of the adjustment member (5) and rigidly connected and assembled therewith, and the base of the telescopic cylinder (8) is rigidly connected to the inner wall of the base (9) through a mounting frame.

6. The modular energy storage device for a high-voltage power system according to claim 1, characterized in that: The guide portion (6) arranged on the periphery of the energy storage box (1) is located on the lower side of the heat dissipation assembly (3), and the fluid drive assembly (11) installed on the outer side of the base (9) is connected in series with the heat dissipation assembly (3) of the circumferential array through the guide portion (6).

7. The modular energy storage device for a high-voltage power system according to claim 6, characterized in that: The guide portion (6) and the fluid drive assembly (11) form a fluid communication system, and the fluid drive assembly (11) is composed of a circulation pump (1101), a refrigerator (1102) and a delivery pipe (1103); wherein the circulation pump (1101) is fixedly installed on the outer surface of the base (9), and its pumping end and discharge end are respectively connected to the refrigerator (1102) through the delivery pipe (1103) pipeline; at the same time, the refrigerator (1102) is connected to the guide portion (6) through another set of delivery pipes (1103) pipelines, thereby forming a stable unidirectional cold flow circulation path inside the guide portion (6), and the guide portion (6) is connected to the guide and heat dissipation portion (303).

8. The modular energy storage device for a high-voltage power system according to claim 5, characterized in that: The base (9) is provided with a positioning detection system consisting of a signal transmitter (13) and a signal receiver (14); the signal transmitter (13) is fixedly mounted on the telescopic end of the telescopic cylinder (8), and the signal receiver (14) is arranged at a corner position of the inner wall of the base (9).

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