Impact-resistant protection structure of flywheel energy storage shell

Abstract

The invention relates to the technical field of flywheel energy storage equipment, in particular to a flywheel energy storage shell anti-impact protection structure which comprises a flywheel energy storage shell body, a flywheel energy storage body is installed on the inner side of the flywheel energy storage shell body, and an output connecting shaft is installed at the output end of the flywheel energy storage body. A plurality of sets of ventilation main channels are formed in the inner side of the flywheel energy storage shell body, the ventilation main channels are communicated with the interiors of the ventilation branch channels, and the flywheel energy storage body drives the output connecting shaft, the driving transmission wheel and the ventilation sealing ring to rotate in a linkage mode. An air pressure extrusion plate is driven to extrude and push air in a ventilation main channel, an extrusion plate connecting frame assists in dredging airflow in a ventilation branch channel, and a through flow channel structure of the ventilation main channel and the ventilation branch channel is matched, so that rapid circulation of air in the flywheel energy storage shell body is achieved, and heat generated by operation of the flywheel energy storage shell body is conducted out in time; thus, efficient heat dissipation is achieved, and it is guaranteed that the flywheel energy storage body stably operates at the proper temperature.

Description

Technical Field

[0001] This invention relates to the field of flywheel energy storage technology, and more specifically, to an impact-resistant protective structure for a flywheel energy storage shell. Background Technology

[0002] Flywheel energy storage is a physical energy storage technology based on mechanical energy cycling. Its core function is to achieve efficient storage and flexible release of electrical energy, solving the mismatch between power supply and demand in terms of time and power. Its working principle is that when there is a surplus of electrical energy, a motor drives a flywheel to rotate at high speed, converting electrical energy into kinetic energy for storage. When there is a power shortage, the flywheel drives a generator to generate electricity in reverse, restoring the kinetic energy back to electrical energy for output. The entire process has a fast response speed and high energy conversion efficiency. In practical applications, it can be used for grid frequency regulation and peak shaving, quickly smoothing the fluctuations of new energy power generation such as wind power and photovoltaics, and ensuring grid stability. In the industrial field, it can recover and recycle the braking energy of equipment such as cranes and elevators, reducing energy consumption. In critical locations such as data centers and hospitals, it can serve as an emergency backup power source, responding to power outages in milliseconds to avoid losses from critical system downtime. Furthermore, it has advantages such as long service life, environmental friendliness with no pollutant emissions, and low maintenance costs, making it an important energy storage support technology for the development of the new energy industry and the construction of new power systems.

[0003] A search revealed a magnetic levitation flywheel energy storage system with publication number (CN119813637B), which describes a system comprising a magnetic levitation bearing, a flywheel, and a motor arranged sequentially from top to bottom. A magnetic bearing with five degrees of freedom is located at the upper end of the flywheel rotor. The upper stator of the magnetic bearing has four upper stator teeth and four lower stator teeth. Circumferentially adjacent upper and lower stator teeth are staggered by 45 degrees, and the circumferentially adjacent upper and lower stator teeth differ in angle by 90 degrees. The upper and lower stator teeth are of equal size, with a larger pole shoe area; each upper or lower stator tooth has an axial stator tooth extending downwards from its lower surface, totaling eight axial stator teeth; each stator tooth is equipped with a control coil; an axially magnetized annular magnetic bearing permanent magnet is located between the upper and lower stators; the lower stator has an L-shaped, ring-like structure for fixing the magnetic bearing permanent magnet. This invention achieves control of five degrees of freedom of the flywheel rotor, and its structure is simple, easy to manufacture and install.

[0004] When using the above technology, the following technical problems were found in the existing technology: the existing flywheel energy storage system only focuses on the degree of freedom control of the flywheel rotor and does not design an active heat dissipation structure to match the flywheel energy storage shell. The heat generated by the high-speed operation of the flywheel can only be dissipated naturally by the shell. The heat is easy to accumulate inside, which will interfere with the stability of the flywheel operation and reduce the efficiency of energy conversion. At the same time, the heat dissipation channel of the existing structure lacks a reasonable airflow guidance design. The air circulation efficiency inside the shell is low, and it is not possible to quickly dissipate the heat generated by the core heat-generating components. Long-term use will accelerate the aging of the internal components.

[0005] Based on this, the present invention discloses an impact-resistant protective structure for a flywheel energy storage shell. Summary of the Invention

[0006] To address the issues raised in the background art, existing flywheel energy storage systems only focus on the control of the flywheel rotor's degrees of freedom, neglecting to design an active heat dissipation structure to match the flywheel energy storage shell. The heat generated by the high-speed rotation of the flywheel relies solely on natural dissipation through the shell, leading to heat accumulation internally, which interferes with the flywheel's operational stability and reduces energy conversion efficiency. Furthermore, existing heat dissipation channels lack a reasonable airflow guidance design, resulting in low airflow efficiency within the shell and an inability to quickly dissipate heat generated by the core heat-generating components, accelerating the aging of internal components over long-term use. This invention provides a flywheel energy storage shell impact-resistant protection structure, including a flywheel energy storage shell body, with a flywheel energy storage body installed on the inner side of the shell body. The flywheel energy storage body has an output connecting shaft installed at its output end. Multiple main ventilation channels and multiple branch ventilation channels are opened on the inner side of the flywheel energy storage housing. The main ventilation channels and branch ventilation channels are interconnected. End mounting seats are symmetrically fixed at both ends of the flywheel energy storage housing. Multiple protective frame connecting ears are fixed to the outer side of the end mounting seats. A vertical air intake frame is provided between two protective frame connecting ears. The two ends of the vertical air intake frame are fixedly connected to the two protective frame connecting ears respectively. The vertical air intake frame is fixedly connected to the flywheel energy storage housing. A protective mechanism is provided between every two vertical air intake frames. A ventilation mechanism is provided on the inner side of the flywheel energy storage housing.

[0007] As a further improvement to this technical solution, the ventilation mechanism includes an active drive wheel, a ventilation sealing ring, a pneumatic extrusion plate, and an extrusion plate connecting frame. The active drive wheel is fixedly connected to the outer side of the output connecting shaft. The ventilation sealing ring is rotatably connected to the inner side of the upper end of the flywheel energy storage shell. The ventilation sealing ring is fixedly connected to the active drive wheel. Multiple sets of pneumatic extrusion plates are fixedly connected to the lower end of the ventilation sealing ring. An extrusion plate connecting frame is fixedly connected between every two pneumatic extrusion plates. The pneumatic extrusion plates are located inside the main ventilation channel, and the extrusion plate connecting frame is located inside the branch ventilation channel.

[0008] As a further improvement to this technical solution, the protective mechanism includes a protective buffer groove, a protective spring sheet, and a protective moving block. Multiple sets of protective buffer grooves are opened on the inner side of the vertical air inlet frame. Multiple sets of protective spring sheets are fixedly connected to the end of the vertical air inlet frame. A protective moving block is slidably connected to the inner side of the protective buffer groove. The protective moving block is fixedly connected to the protective spring sheet. A reset component is provided on the inner side of the protective buffer groove.

[0009] As a further improvement to this technical solution, the reset assembly includes a reset guide rod and a reset spring. The reset guide rod is fixedly connected to the inner side of the protective buffer groove. The reset guide rod is located inside the protective moving block and is slidably connected to the protective moving block. A reset spring is provided on the outer side of the reset guide rod. The two ends of the reset spring are fixedly connected to the protective moving block and the vertical air inlet frame, respectively.

[0010] As a further improvement to this technical solution, an air intake gravel filter screen is installed between the vertical air intake frame and the flywheel energy storage outer shell.

[0011] As a further improvement to this technical solution, multiple sets of filter cleaning support frames are fixedly connected to the outer side of the end mounting base. The filter cleaning support frames are fixedly connected to the vertical air inlet frame. A reciprocating threaded screw is rotatably connected between two of the filter cleaning support frames. A threaded sleeve is threadedly connected to the outer side of the reciprocating threaded screw. A cleaning moving block is fixedly connected to the outer side of the threaded sleeve. A limit component is provided between the filter cleaning support frame and the cleaning moving block. A cleaning component is provided at the end of the cleaning moving block.

[0012] As a further improvement to this technical solution, the upper end of the reciprocating threaded screw passes through the filter cleaning support frame and is fixedly connected to a driven gear.

[0013] As a further improvement to this technical solution, the limiting component includes equal-row serrated grooves and equal-row serrated columns. The two filter cleaning support frames are fixedly connected with equal-row serrated columns. The inner side of the cleaning moving block is provided with equal-row serrated grooves. The equal-row serrated columns are located inside the equal-row serrated grooves and are slidably connected to the equal-row serrated grooves.

[0014] As a further improvement to this technical solution, the cleaning component includes cleaning brushes, and multiple sets of cleaning brushes are installed at the end of the cleaning moving block away from the threaded sleeve.

[0015] As a further improvement to this technical solution, a ventilation transmission wheel is fixedly connected to the outer side of the ventilation sealing ring, and a linkage transmission gear ring is fixedly connected to the outer side of the ventilation transmission wheel. The linkage transmission gear ring meshes with the driven gear.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this flywheel energy storage shell impact protection structure, the flywheel energy storage body drives the output connecting shaft, the active transmission wheel and the ventilation sealing ring to rotate in linkage. This drives the air pressure extrusion plate to extrude and push air in the main ventilation channel. The extrusion plate connecting frame assists in guiding the airflow in the branch ventilation channel. With the through flow channel structure of the main ventilation channel and the branch ventilation channel, the rapid air circulation inside the flywheel energy storage shell body is realized, and the heat generated by the operation of the flywheel energy storage body is timely discharged, thereby achieving efficient heat dissipation and ensuring that the flywheel energy storage body operates stably at a suitable temperature.

[0017] 2. In this flywheel energy storage shell impact protection structure, the protective spring sheet absorbs the external impact force and drives the protective moving block to slide along the protective buffer groove. The protective moving block squeezes the reset spring on the outside of the reset guide rod to produce elastic deformation, thus achieving initial buffering of the impact force. At the same time, the bending deformation of the protective spring sheet itself further disperses the remaining impact force. After the impact force disappears, the elastic restoring force of the reset spring and the protective spring sheet drives the protective moving block to accurately reset. This achieves graded buffering and dispersion of the external impact force, preventing the impact force from being directly transmitted to the flywheel energy storage shell body and the internal flywheel energy storage body, protecting the safety of the core components. Moreover, the protective mechanism can quickly restore the initial protective state, continuously providing a stable protective buffering effect for the device.

[0018] 3. In this flywheel energy storage shell impact protection structure, the ventilation transmission wheel and the linkage transmission gear ring are driven to rotate by the ventilation sealing ring. The meshing transmission of the linkage transmission gear ring and the driven gear drives the reciprocating threaded screw to rotate. With the limiting effect of the equal row of sawtooth grooves and equal row of sawtooth columns, the threaded sleeve drives the cleaning moving block to reciprocate linearly along the axis of the reciprocating threaded screw. This drives the cleaning brush to reciprocate and sweep along the surface of the air intake gravel filter screen, realizing the automatic cleaning of impurities in the air intake gravel filter screen. This avoids the filter screen clogging from affecting the ventilation and heat dissipation efficiency of the device. It eliminates the need for frequent manual disassembly and cleaning. At the same time, the air intake gravel filter screen can effectively block large external particles from entering the device, protecting the normal operation of the internal transmission and heat dissipation components, and further improving the stability and service life of the device. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the vertical air intake frame of the present invention; Figure 3 This is a schematic diagram of the structure of the pneumatic extrusion plate and the extrusion plate connecting frame of the present invention; Figure 4 This is a cross-sectional structural schematic diagram of the flywheel energy storage housing body of the present invention; Figure 5 This is a schematic diagram of the main ventilation channel and the branch ventilation channels of the present invention; Figure 6 This is a schematic diagram of the end mounting base of the present invention; Figure 7 This is a schematic diagram of the structure of the protective movable block of the present invention; Figure 8 This is a schematic diagram of the cleaning component of the present invention; Figure 9 This is a schematic diagram of the equidistant sawtooth groove structure of the present invention.

[0020] The meanings of the labels in the diagram are as follows: 101. Flywheel energy storage body; 102. Flywheel energy storage outer shell; 103. Output connecting shaft; 104. Main ventilation channel; 105. Branch ventilation channel; 106. End mounting base; 107. Protective frame connecting ear; 108. Vertical air inlet frame; 201. Drive drive wheel; 202. Ventilation sealing ring; 203. Air pressure extrusion plate; 204. Extrusion plate connecting frame; 301. Protective buffer groove; 302. Protective spring plate; 303. Protective moving block; 401. Reset guide rod; 402. Reset spring; 501. Air inlet gravel filter screen; 601. Filter screen cleaning support frame; 602. Reciprocating threaded screw; 603. Threaded sleeve; 604. Cleaning moving block; 701. Driven gear; 801. Equal row serrated groove; 802. Equal row serrated column; 901. Cleaning brush; 951. Ventilation drive wheel; 952. Linkage drive gear ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0022] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the embodiments of the present invention can be combined with each other.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] Example 1 like Figures 1-6 As shown, the device includes a flywheel energy storage housing body 102, on the inner side of which a flywheel energy storage body 101 is installed. An output connecting shaft 103 is installed at the output end of the flywheel energy storage body 101 for heat dissipation and ventilation. Multiple sets of main ventilation channels 104 and multiple sets of branch ventilation channels 105 are formed on the inner side of the flywheel energy storage housing body 102. The main ventilation channels 104 and branch ventilation channels 105 are internally interconnected, forming a complete ventilation flow channel. The two ends of the shell body 102 are symmetrically fixed with end mounting seats 106. Multiple sets of protective frame connecting ears 107 are fixed on the outer side of the end mounting seats 106. A vertical air intake frame 108 is provided between two of the protective frame connecting ears 107. The two ends of the vertical air intake frame 108 are fixedly connected to the two protective frame connecting ears 107 respectively. The vertical air intake frame 108 is fixedly connected to the flywheel energy storage shell body 102. A protective mechanism is provided between every two vertical air intake frames 108. A ventilation mechanism is provided on the inner side of the flywheel energy storage shell body 102.

[0025] The ventilation mechanism includes a drive wheel 201, a ventilation sealing ring 202, a pneumatic extrusion plate 203, and an extrusion plate connecting frame 204. The drive wheel 201 is fixedly connected to the outer side of the output connecting shaft 103. The ventilation sealing ring 202 is rotatably connected to the inner side of the upper end of the flywheel energy storage housing 102. The ventilation sealing ring 202 is fixedly connected to the drive wheel 201. Multiple sets of pneumatic extrusion plates 203 are fixedly connected to the lower end of the ventilation sealing ring 202. An extrusion plate connecting frame 204 is fixedly connected between every two pneumatic extrusion plates 203. The pneumatic extrusion plates 203 are located inside the main ventilation channel 104, and the extrusion plate connecting frame 204 is located inside the branch ventilation channel 105. During assembly, the pneumatic extrusion plates 203 are embedded into the inner side of the main ventilation channel 104, and the extrusion plate connecting frame 204 is located inside the branch ventilation channel 105.

[0026] During operation, the flywheel energy storage body 101 starts running and generates heat. At the same time, the flywheel energy storage body 101 drives the output connecting shaft 103 to rotate synchronously. The output connecting shaft 103 drives the outer active drive wheel 201 to rotate through a key connection. The active drive wheel 201 then drives the ventilation sealing ring 202 fixed thereto to rotate smoothly on the inner side of the upper end of the flywheel energy storage outer shell body 102. As the ventilation sealing ring 202 rotates, multiple sets of air pressure extrusion plates 203 at its lower end rotate synchronously within the main ventilation channel 104, and during the rotation, they exert a squeezing and pushing effect on the air within the main ventilation channel 104. At the same time, the extrusion plate connecting frame 204 moves synchronously within the ventilation branch channel 105 to assist in guiding airflow. With the help of the through structure of the ventilation main channel 104 and the ventilation branch channel 105, the airflow can circulate rapidly throughout the channel, timely dissipating the heat generated inside the flywheel energy storage housing 102 and the flywheel energy storage body 101, ultimately achieving efficient heat dissipation and ensuring that the flywheel energy storage body 101 operates stably at a suitable temperature.

[0027] Example 2 like Figures 1-7 As shown, the protective mechanism includes a protective buffer groove 301, a protective spring sheet 302, and a protective moving block 303. Multiple sets of protective buffer grooves 301 are opened on the inner side of the vertical air inlet frame 108. Multiple sets of protective spring sheets 302 are fixedly connected to the end of the vertical air inlet frame 108. A protective moving block 303 is slidably connected to the inner side of the protective buffer groove 301. The protective moving block 303 is fixedly connected to the protective spring sheet 302. In order to realize the reset of the protective moving block 303, a reset component is provided on the inner side of the protective buffer groove 301.

[0028] The reset assembly includes a reset guide rod 401 and a reset spring 402. The reset guide rod 401 is fixedly connected to the inner side of the protective buffer groove 301. The reset guide rod 401 is located inside the protective moving block 303 and is slidably connected to the protective moving block 303. The reset spring 402 is provided on the outer side of the reset guide rod 401. The two ends of the reset spring 402 are fixedly connected to the protective moving block 303 and the vertical air inlet frame 108, respectively.

[0029] During operation, when the device is subjected to external impact or collision with foreign objects, the impact force first acts directly on the end face of the protective spring plate 302. After the protective spring plate 302 is subjected to the force, the protective moving block 303 slides along the inner side of the protective buffer groove 301 toward the flywheel energy storage housing body 102. During the sliding process, the protective moving block 303 compresses the reset spring 402 on the outer side of the reset guide rod 401, causing the reset spring 402 to undergo elastic deformation, converting the kinetic energy generated by the impact into elastic potential energy, and achieving the initial buffering and offsetting of the impact force. At the same time, the protective spring plate 302 undergoes bending deformation. The protective spring plate 302 further disperses and buffers the remaining impact force through its own deformation, preventing the impact force from being directly transmitted to the flywheel energy storage outer shell 102 and the internal flywheel energy storage body 101, thus playing the role of protecting the core components. When the external impact force disappears, the reset spring 402, under the action of its own elastic restoring force, pushes the protective moving block 303 to slide smoothly back to its original position along the reset guide rod 401. At the same time, the protective spring plate 302 also returns to its original shape under its own elasticity, driving the protective moving block 303 to return precisely to its initial position, so that the protective mechanism returns to its initial protective state and continues to play a stable protective buffering role for the device.

[0030] Example 3 like Figures 1-9 As shown, an air intake gravel filter 501 is installed between the vertical air intake frame 108 and the flywheel energy storage housing body 102; it is used to block external gravel and large particle impurities from entering the device.

[0031] To achieve automatic cleaning of the filter screen, multiple sets of filter screen cleaning support frames 601 are fixedly connected to the outer side of the end mounting base 106. The filter screen cleaning support frame 601 is fixedly connected to the vertical air inlet frame 108. A reciprocating threaded screw 602 is rotatably connected between two of the filter screen cleaning support frames 601. A threaded sleeve 603 is threadedly connected to the outer side of the reciprocating threaded screw 602. A cleaning moving block 604 is fixedly connected to the outer side of the threaded sleeve 603. To prevent the cleaning moving block 604 from rotating with the reciprocating threaded screw 602, a limit component is provided between the filter screen cleaning support frame 601 and the cleaning moving block 604. A cleaning component is provided at the end of the cleaning moving block 604.

[0032] The upper end of the reciprocating threaded screw 602 passes through the filter cleaning support frame 601 and is fixedly connected to the driven gear 701; it is used to receive power drive.

[0033] The limiting component includes serrated grooves 801 and serrated columns 802. The serrated columns 802 are fixedly connected between the two filter cleaning support frames 601. The cleaning moving block 604 has serrated grooves 801 on its inner side. The serrated columns 802 are located inside the serrated grooves 801 and are slidably connected to the serrated grooves 801.

[0034] The cleaning assembly includes cleaning brushes 901, and multiple sets of cleaning brushes 901 are installed at the end of the cleaning moving block 604 away from the threaded sleeve 603; and the ends of the cleaning brushes 901 are in close contact with the surface of the air intake gravel filter screen 501.

[0035] To achieve power linkage, a ventilation transmission wheel 951 is fixedly connected to the outer side of the ventilation sealing ring 202, and a linkage transmission gear ring 952 is fixedly connected to the outer side of the ventilation transmission wheel 951. The linkage transmission gear ring 952 is meshed with the driven gear 701.

[0036] During operation, when the ventilation sealing ring 202 rotates, the ventilation transmission wheel 951 on its outer side rotates synchronously. The ventilation transmission wheel 951 drives the outer linkage transmission gear ring 952 to rotate synchronously. Since the linkage transmission gear ring 952 meshes with the driven gear 701, the linkage transmission gear ring 952 transmits power to the driven gear 701. The driven gear 701 rotates, and the driven gear 701 then drives the reciprocating threaded screw 602 fixed to it to rotate smoothly between the two filter cleaning support frames 601. When the reciprocating threaded screw 602 rotates, the threaded sleeve 603 on its outer side will tend to move along the axial direction of the reciprocating threaded screw 602 under the action of thread rotation. At this time, the serrated grooves 801 on the inner side of the cleaning moving block 604 slide along the serrated column 802, thereby restricting the rotation of the cleaning moving block 604, so that the threaded sleeve 603 can only drive the cleaning moving block 604 to make reciprocating linear motion along the axial direction of the reciprocating threaded screw 602. During the reciprocating motion of the cleaning moving block 604, multiple sets of cleaning brushes 901 at its end slide back and forth along the surface of the air intake gravel filter 501. Through the friction of the brush bristles, the gravel, dust and other impurities attached to the surface of the air intake gravel filter 501 are thoroughly cleaned, so as to avoid clogging of the air intake gravel filter 501 and affecting the ventilation efficiency and heat dissipation effect of the device. This structure automates filter cleaning, eliminating the need for frequent manual disassembly and cleaning. At the same time, the air intake gravel filter 501 effectively blocks large external particles from entering the device, protecting the normal operation of internal transmission and heat dissipation components, and further improving the stability and service life of the device.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flywheel energy storage housing impact protection structure, comprising a flywheel energy storage housing body (102), wherein a flywheel energy storage body (101) is installed on the inner side of the flywheel energy storage housing body (102), and an output connecting shaft (103) is installed at the output end of the flywheel energy storage body (101), characterized in that: The flywheel energy storage housing body (102) has multiple sets of main ventilation channels (104) on its inner side and multiple sets of branch ventilation channels (105) on its inner side. The main ventilation channels (104) and branch ventilation channels (105) are interconnected. The flywheel energy storage housing body (102) has end mounting seats (106) symmetrically fixed at both ends. The end mounting seats (106) have multiple sets of protective frame connecting ears (107) fixed on their outer sides. A vertical air intake frame (108) is provided between two of the protective frame connecting ears (107). The two ends of the vertical air intake frame (108) are fixedly connected to the two protective frame connecting ears (107) respectively. The vertical air intake frame (108) is fixedly connected to the flywheel energy storage housing body (102). A protective mechanism is provided between every two vertical air intake frames (108). A ventilation mechanism is provided on the inner side of the flywheel energy storage housing body (102).

2. The flywheel energy storage shell impact-resistant protection structure according to claim 1, characterized in that: The ventilation mechanism includes an active drive wheel (201), a ventilation sealing ring (202), a pneumatic extrusion plate (203), and an extrusion plate connecting frame (204). The active drive wheel (201) is fixedly connected to the outer side of the output connecting shaft (103). The ventilation sealing ring (202) is rotatably connected to the inner side of the upper end of the flywheel energy storage shell body (102). The ventilation sealing ring (202) is fixedly connected to the active drive wheel (201). Multiple sets of pneumatic extrusion plates (203) are fixedly connected to the lower end of the ventilation sealing ring (202). An extrusion plate connecting frame (204) is fixedly connected between every two pneumatic extrusion plates (203). The pneumatic extrusion plate (203) is located inside the main ventilation channel (104), and the extrusion plate connecting frame (204) is located inside the branch ventilation channel (105).

3. The flywheel energy storage shell impact-resistant protection structure according to claim 1, characterized in that: The protective mechanism includes a protective buffer groove (301), a protective spring plate (302), and a protective moving block (303). Multiple sets of protective buffer grooves (301) are opened on the inner side of the vertical air inlet frame (108). Multiple sets of protective spring plates (302) are fixedly connected to the end of the vertical air inlet frame (108). A protective moving block (303) is slidably connected to the inner side of the protective buffer groove (301). The protective moving block (303) is fixedly connected to the protective spring plate (302). A reset component is provided on the inner side of the protective buffer groove (301).

4. The flywheel energy storage shell impact-resistant protection structure according to claim 3, characterized in that: The reset assembly includes a reset guide rod (401) and a reset spring (402). The reset guide rod (401) is fixedly connected to the inner side of the protective buffer groove (301). The reset guide rod (401) is located inside the protective moving block (303) and is slidably connected to the protective moving block (303). The reset spring (402) is provided on the outer side of the reset guide rod (401). The two ends of the reset spring (402) are fixedly connected to the protective moving block (303) and the vertical air inlet frame (108) respectively.

5. The flywheel energy storage shell impact-resistant protection structure according to claim 1, characterized in that: An air intake gravel filter (501) is installed between the vertical air intake frame (108) and the flywheel energy storage shell body (102).

6. The flywheel energy storage shell impact-resistant protection structure according to claim 2, characterized in that: Multiple sets of filter cleaning support frames (601) are fixedly connected to the outer side of the end mounting base (106). The filter cleaning support frame (601) is fixedly connected to the vertical air inlet frame (108). A reciprocating threaded screw (602) is rotatably connected between two of the filter cleaning support frames (601). A threaded sleeve (603) is threadedly connected to the outer side of the reciprocating threaded screw (602). A cleaning moving block (604) is fixedly connected to the outer side of the threaded sleeve (603). A limit component is provided between the filter cleaning support frame (601) and the cleaning moving block (604). A cleaning component is provided at the end of the cleaning moving block (604).

7. The flywheel energy storage shell impact-resistant protection structure according to claim 6, characterized in that: The upper end of the reciprocating threaded screw (602) passes through the filter cleaning support frame (601) and is fixedly connected to the driven gear (701).

8. The flywheel energy storage shell impact-resistant protection structure according to claim 6, characterized in that: The limiting component includes serrated grooves (801) and serrated columns (802). The serrated columns (802) are fixedly connected between the two filter cleaning support frames (601). The cleaning moving block (604) has serrated grooves (801) on its inner side. The serrated columns (802) are located inside the serrated grooves (801) and are slidably connected to the serrated grooves (801).

9. The flywheel energy storage shell impact-resistant protection structure according to claim 6, characterized in that: The cleaning assembly includes cleaning brushes (901), and multiple sets of cleaning brushes (901) are installed at one end of the cleaning moving block (604) away from the threaded sleeve (603).

10. The flywheel energy storage shell impact-resistant protection structure according to claim 7, characterized in that: A ventilation transmission wheel (951) is fixedly connected to the outer side of the ventilation sealing ring (202), and a linkage transmission gear ring (952) is fixedly connected to the outer side of the ventilation transmission wheel (951). The linkage transmission gear ring (952) meshes with the driven gear (701).

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