A heat storage device

Abstract

The present invention discloses a heat storage device, which relates to the field of energy storage technology. The heat storage device includes a heat storage cylinder, a heat storage assembly, and a first drive assembly. The heat storage cylinder is formed with a through hole. The heat storage assembly includes a heat-conducting column and a plurality of heat storage bodies. The heat-conducting column is arranged in the through hole. The plurality of heat storage bodies are rotatably arranged in the through hole and fit with the outer peripheral wall of the heat-conducting column and the inner peripheral wall of the through hole. The first drive assembly drives the plurality of heat storage bodies to rotate. The technical solution provided by the present invention can ensure heat storage efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage, and in particular to a heat storage device. Background Art

[0002] Traditional heat storage devices are mainly composed of heat storage materials, containers and insulation structures. Their working principle is to convert external input energy into thermal energy with the help of heat storage materials, containers and insulation structures, and store it inside the device. During the heat storage process, thermal energy is mainly transferred to the heat storage material through three methods: heat conduction, convection and radiation, to achieve energy storage and conversion. However, in the current relevant technical field, the position where the heat storage material receives heat energy is relatively fixed, which makes the local area of ​​the heat storage material continuously receive heat energy, which in turn causes the local temperature of the heat storage material to rise sharply. As the local temperature rises, the thermal resistance characteristics of the heat storage material change significantly, and the thermal resistance gradually increases. The increase in thermal resistance directly hinders the effective transfer and storage of thermal energy, which ultimately leads to a significant decrease in the heat storage efficiency of the entire heat storage device, affecting the overall performance and application effect of the heat storage device. Summary of the Invention

[0003] The main purpose of the present invention is to provide a heat storage device to ensure heat storage efficiency.

[0004] To achieve the above-mentioned object, the heat storage device proposed in the present invention includes: a heat storage cylinder, wherein the heat storage cylinder is formed with a through hole;

[0005] a heat storage assembly, the heat storage assembly comprising a heat-conducting column and a plurality of heat storage bodies, the heat-conducting column being disposed in the through hole, the plurality of heat storage bodies being rotatably disposed in the through hole and being in contact with the outer peripheral wall of the heat-conducting column and the inner peripheral wall of the through hole; and

[0006] A first driving component drives the plurality of heat storage bodies to rotate.

[0007] In one embodiment, the first driving assembly includes a first driving motor and a first transmission assembly, and the first transmission assembly is connected to an output end of the first driving motor and the plurality of heat storage bodies.

[0008] In one embodiment, a connecting shaft is provided at one end of the heat storage body;

[0009] The first transmission assembly includes a first rotating shaft, a first gear and multiple second gears. The first rotating shaft is connected to the output end of the first drive motor. The first gear is sleeved on the first rotating shaft. Each of the second gears is sleeved on one of the connecting shafts and meshes with the first gear.

[0010] In one embodiment, the heat storage device further includes a mounting cylinder, a bottom plate, a support plate, and a second drive assembly, wherein the mounting cylinder is disposed on the bottom plate, the heat storage cylinder is rotatably disposed in the mounting cylinder, the support plate is rotatably disposed in the mounting cylinder, and the second drive assembly is disposed on the bottom plate, and the second drive assembly drives the heat storage cylinder and the support plate to rotate;

[0011] The heat storage cylinder is formed with a plurality of through holes, and the heat storage device includes a plurality of heat storage components and a plurality of first drive components. Each heat storage component is arranged in a through hole, and a plurality of first drive components are arranged on the support plate, and each first drive component is arranged corresponding to a heat storage component.

[0012] In one embodiment, the second driving assembly includes a second driving motor and a second rotating shaft, the second driving motor is disposed on the bottom plate, and the second rotating shaft is disposed at the output end of the second driving motor and connected to the support plate and the heat storage cylinder.

[0013] In one embodiment, the heat storage device further includes a fixing frame, a fixing block and a heating element, wherein the fixing frame connects the inner top wall of the mounting tube and the fixing block, the fixing block covers a plurality of the through holes, and the heating element is slidably penetrated through the mounting tube and the fixing block, and the heating element is used to provide heat for the heat-conducting column.

[0014] In one embodiment, the heat storage device also includes a screw rod, a moving block, a fixed column, a circular ring plate and a connecting plate, the screw rod is connected to the second drive assembly, the moving block is threadedly sleeved on the screw rod, the fixed column is arranged on the top of the moving block, the circular ring plate is sleeved on the fixed column, the top end of the fixed column is slidably passed through the connecting plate, one end of the connecting plate is slidably connected to the fixed frame, and the other end of the connecting plate is fixedly connected to the heating element.

[0015] In one embodiment, the heating element includes a movable column and a heating column, the movable column is fixedly connected to the connecting plate, the movable column is provided with a lifting slot and a telescopic slot, the heating column is slidably arranged in the lifting slot, and a block located in the lifting slot is provided on the circumference of the heating column;

[0016] The heat storage device also includes a telescopic ring plate, a first spring, a connecting rope and a lifting ring plate. The telescopic ring plate is arranged in the telescopic groove. The first spring is arranged between the telescopic ring plate and the inner top wall of the telescopic groove. The connecting rope connects the telescopic ring plate and the lifting ring plate. The lifting ring plate is slidably sleeved on the heating column and is located in the lifting groove.

[0017] In one embodiment, the heat storage device also includes a storage block, two shielding blocks and two second springs. The storage block is arranged between the movable column and the heat storage cylinder. The storage block is formed with a shielding groove. The two shielding blocks are slidably arranged in the shielding groove. The heating column is located between the two shielding blocks. The shielding block is formed with a guide surface near the top of the heating column. Each of the second springs connects a side of the shielding block facing away from the heating column and the storage block.

[0018] In one embodiment, the heat storage device further includes a third spring, and the third spring is disposed between the lifting ring plate and the inner top wall of the lifting slot.

[0019] In the technical solution of the present invention, multiple heat storage bodies are driven to rotate by the first driving component, so that different positions of the heat storage bodies can contact the heat-conducting columns, so that the heat storage bodies can be heated evenly, ensuring the heat storage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of an embodiment of a heat storage device provided by the present invention;

[0022] Figure 2 A cross-sectional view of an embodiment of a heat storage device provided by the present invention;

[0023] Figure 3 for Figure 2 A partial enlarged view of point A in the middle;

[0024] Figure 4 for Figure 2 A partial enlarged view of point B in the middle;

[0025] Figure 5 A schematic structural diagram of another embodiment of the heat storage device provided by the present invention;

[0026] Figure 6 A schematic structural diagram of another embodiment of the heat storage device provided by the present invention;

[0027] Figure 7 A schematic structural diagram of another embodiment of the heat storage device provided by the present invention;

[0028] Figure 8 for Figure 7A partial enlarged view of point C in the middle.

[0029] Description of Figure Numbers:

[0030] 1. Mounting cylinder; 2. Bottom plate; 3. Heat storage cylinder; 4. Heat storage body; 5. Heat-conducting column; 6. Fixed block; 7. Second gear; 8. Connecting shaft; 9. First gear; 10. Second drive motor; 11. Second rotating shaft; 12. First rotating shaft; 13. First drive motor; 14. Moving column; 15. Heating column; 16. Connecting rope; 17. Connecting plate; 18. First spring; 19. Telescopic groove; 20. Telescopic ring plate; 21. Through hole; 22. Heat-conducting block; 23. Blocking block; 24. Second spring; 25. Blocking groove; 26. Storage block; 27. Blocking block; 28. Third spring; 29. ​​Lifting groove; 30. Rotating groove; 31. Fixed frame; 32. Screw rod; 33. Moving block; 34. Circular ring plate; 35. Fixed column; 36. Lifting ring plate; 37. Support plate.

[0031] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] The present invention provides a heat storage device.

[0036] See also Figure 1 、 Figure 2 and Figure 5 In one embodiment of the present invention, the heat storage device includes a heat storage cylinder 3, a heat storage assembly, and a first driving assembly; the heat storage cylinder 3 is formed with a through hole 21; the heat storage assembly includes a heat-conducting column 5 and a plurality of heat storage bodies 4, the heat-conducting column 5 is arranged in the through hole 21, and the plurality of heat storage bodies 4 are rotatably arranged in the through hole 21 and are in contact with the outer peripheral wall of the heat-conducting column 5 and the inner peripheral wall of the through hole 21; the first driving assembly drives the plurality of heat storage bodies 4 to rotate.

[0037] The heat-conducting column 5 is made of a metal material with high thermal conductivity, such as copper or aluminum, to achieve efficient heat conduction. Its shape is cylindrical and matches the through hole 21, making it easy to contact with the external heat source and receive external heat energy. Figure 4 A plurality of heat-conducting blocks 22 are also provided on the peripheral side of the heat-conducting column 5 , and the heat of the heat-conducting column 5 is conducted to the heat storage body 4 through the heat-conducting blocks 22 .

[0038] The heat storage body 4 is made of a phase change heat storage material with a suitable phase change temperature, such as paraffin or fatty acid phase change materials, which can absorb or release a large amount of heat energy during the phase change process. The heat storage body 4 is also cylindrical.

[0039] In the technical solution of the present invention, multiple heat storage bodies 4 are driven to rotate by the first driving component, so that different positions of the heat storage bodies 4 can contact the heat-conducting columns 5, so that the heat storage bodies 4 can be heated evenly, ensuring the heat storage efficiency.

[0040] Further, in one embodiment of the present invention, please refer to Figure 2The first drive assembly includes a first drive motor 13 and a first transmission assembly. The first transmission assembly connects the output of the first drive motor 13 to the plurality of heat storage elements 4. The first drive motor 13 is an AC motor with a rated power appropriately configured based on the power required to rotate the heat storage elements 4. It has forward and reverse rotation control capabilities to accommodate the different rotation directions of the heat storage elements 4.

[0041] Specifically, in one embodiment of the present invention, please refer to Figure 2 and Figure 6 , a connecting shaft 8 is provided at one end of the heat storage body 4, and the first transmission assembly includes a first rotating shaft 12, a first gear 9 and a plurality of second gears 7. The first rotating shaft 12 is connected to the output end of the first driving motor 13, and the first gear 9 is sleeved on the first rotating shaft 12. Each second gear 7 is sleeved on a connecting shaft 8 and meshes with the first gear 9. The first driving assembly drives the first rotating shaft 12 to rotate, the first rotating shaft 12 drives the first gear 9 to rotate, the first gear 9 drives the plurality of second gears 7 to rotate, and the plurality of second gears 7 drive the plurality of connecting shafts 8 to rotate, and finally drives the plurality of heat storage bodies 4 to rotate. During the rotation of the heat storage body 4, different parts thereof contact the heat conducting column 5 in turn and receive heat energy, so as to achieve uniform heating of the heat storage material, avoid excessive local temperature causing an increase in thermal resistance, and thus improve the heat storage efficiency. At the same time, the phase change heat storage material undergoes a phase change when absorbing heat energy, and efficiently stores the heat energy in the form of latent heat.

[0042] In order to improve the heat storage efficiency, in one embodiment of the present invention, please refer to Figure 1 and Figure 2 The heat storage device also includes a mounting tube 1, a base plate 2, a support plate 37, and a second drive assembly. The mounting tube 1 is mounted on the base plate 2, the heat storage tube 3 is rotatably mounted in the mounting tube 1, the support plate 37 is rotatably mounted in the mounting tube 1, and the second drive assembly is mounted on the base plate 2. The second drive assembly drives the heat storage tube 3 and the support plate 37 to rotate. The heat storage tube 3 is formed with multiple through holes 21. The heat storage device includes multiple heat storage components and multiple first drive assemblies. Each heat storage component is mounted in a through hole 21. Multiple first drive assemblies are mounted on the support plate 37, and each first drive assembly is configured for a corresponding heat storage component. The heat storage tube 3 is provided with multiple through holes 21, corresponding to multiple heat storage components. In this way, after one heat storage component completes heat storage, the second drive assembly can drive the support plate 37 and the heat storage tube 3 to rotate in the mounting tube 1, thereby causing another heat storage component to rotate to the heating position to receive heat energy for heat storage, which is beneficial for increasing the heat storage capacity of the heat storage device. The support plate 37 is correspondingly formed with a plurality of rotation slots 30 , and the plurality of second gears 7 of each first driving assembly are located in a rotation slot 30 .

[0043] Specifically, in one embodiment of the present invention, please refer to Figure 2The second drive assembly includes a second drive motor 10 and a second rotating shaft 11. The second drive motor 10 is mounted on the bottom plate 2. The second rotating shaft 11 is located at the output end of the second drive motor 10 and is connected to the support plate 37 and the heat storage cylinder 3. The second drive motor 10 drives the second rotating shaft 11 to rotate, thereby driving the support plate 37 and the heat storage cylinder 3 to rotate. The second rotating shaft 11 passes through the axis of the support plate 37 and the heat storage cylinder 3, allowing the support plate 37 and the heat storage cylinder 3 to rotate smoothly.

[0044] Further, in one embodiment of the present invention, please refer to Figure 2 、 Figure 3 and Figure 7 The heat storage device also includes a fixing frame 31, a fixing block 6, and a heating element. The fixing frame 31 connects the inner top wall of the mounting tube 1 and the fixing block 6. The fixing block 6 shields multiple through-holes 21. The heating element slides through the mounting tube 1 and the fixing block 6 and is used to provide heat to the heat-conducting column 5. The fixing block 6 shields multiple through-holes 21, thereby shielding multiple heat storage components. At the same time, the end of the heat storage component facing away from the fixing block 6 is shielded by the bottom plate 2. This reduces heat loss from the heat storage component and reduces energy consumption. The heating element is slidably provided in the mounting tube 1 and the fixed block 6. The position of the heating element is the heating position. The heat storage tube 3 can be driven to rotate by the second driving component so that one of the heat storage components is located below the heating element. That is, the heat storage component can be supplied with heat by the heating element. After one heat storage component completes heat storage, the heat storage tube 3 can be driven to rotate in the mounting tube 1 by the second driving component, so that the heat storage component that has completed heat storage can be moved to the bottom of the fixed block 6, and at the same time, the other heat storage component is rotated to the heating position to receive heat energy for heat storage, which is beneficial to increase the heat storage capacity of the heat storage device and reduce heat loss.

[0045] In order to drive the heating element to slide, in one embodiment of the present invention, see Figure 3 and Figure 4The heat storage device also includes a screw rod 32, a moving block 33, a fixed column 35, a circular plate 34 and a connecting plate 17. The screw rod 32 is connected to the second driving assembly, the moving block 33 is threadedly sleeved on the screw rod 32, the fixed column 35 is arranged on the top of the moving block 33, the circular plate 34 is sleeved on the fixed column 35, and the top end of the fixed column 35 is slidably penetrated into the connecting plate 17. One end of the connecting plate 17 is slidably connected to the fixed frame 31, and the other end of the connecting plate 17 is fixedly connected to the heating element. Specifically, the screw rod 32 is connected to the second rotating shaft 11 of the second drive assembly. The second driving motor 10 of the second driving assembly drives the second rotating shaft 11 to rotate. The second rotating shaft 11 drives the screw rod 32 to rotate. The rotation of the screw rod 32 causes the moving block 33 to perform a lifting movement. When the moving block 33 rises, it will drive the fixed column 35 and the annular plate 34 to rise. The fixed column 35 slides relative to the connecting plate 17. After rising to a certain position, the annular plate 34 can contact the connecting plate 17, and then drive the connecting plate 17 to rise, and finally the connecting plate 17 drives the heating element to rise.

[0046] Further, in one embodiment of the present invention, please refer to Figure 4 The heating element includes a movable column 14 and a heating column 15. The movable column 14 is fixedly connected to the connecting plate 17. The movable column 14 is provided with a lifting groove 29 and a telescopic groove 19. The heating column 15 is slidably inserted into the lifting groove 29. The surrounding side of the heating column 15 is provided with a block 27 located in the lifting groove 29; the heat storage device also includes a telescopic ring plate 20, a first spring 18, a connecting rope 16 and a lifting ring plate 36. The telescopic ring plate 20 is arranged in the telescopic groove 19, the first spring 18 is arranged between the telescopic ring plate 20 and the inner top wall of the telescopic groove 19, the connecting rope 16 connects the telescopic ring plate 20 and the lifting ring plate 36, and the lifting ring plate 36 is slidably sleeved on the heating column 15 and located in the lifting groove 29. Among them, when the heating column 15 and the heat-conducting column 5 are in contact, the first spring 18 is in a compressed state, so that the rising of the connecting plate 17 can drive the movable column 14 to rise. At this time, under the action of the first spring 18, the telescopic ring plate 20 will remain stationary, so that the connecting rope 16 can pull the lifting ring plate 36 to rise. After the lifting ring plate 36 rises to a certain height, it can contact the block 27 on the heating column 15, and drive the heating column 15 to rise through the block 27, so that the heating column 15 is retracted into the movable column 14 and separated from the heat-conducting column 5.

[0047] Specifically, in one embodiment of the present invention, please refer to Figure 4 The heat storage device also includes a third spring 28, which is arranged between the lifting ring plate 36 and the inner top wall of the lifting groove 29.

[0048] Further, in one embodiment of the present invention, please refer to Figure 4 and Figure 8The heat storage device also includes a storage block 26, two blocking blocks 23, and two second springs 24. The storage block 26 is located between the movable column 14 and the heat storage cylinder 3. The storage block 26 is formed with a blocking groove 25. The two blocking blocks 23 are slidably located within the blocking groove 25. The heating column 15 is located between the two blocking blocks 23. The blocking blocks 23 are formed with a guide surface near the top of the heating column 15. Each second spring 24 connects the side of a blocking block 23 facing away from the heating column 15 and the storage block 26. When the heating column 15 is located between the two blocking blocks 23, the second spring 24 is in a compressed state. Therefore, after the heating column 15 is retracted into the movable column 14, the two blocking blocks 23 can approach each other under the action of the second spring 24 to block the bottom of the movable block 33. The blocking blocks 23 are formed with a guide surface. When the heating column 15 moves downward, the two blocking blocks 23 can be easily pushed to slide by the guide surface.

[0049] In an embodiment of the present invention, heat energy is conducted to the heat-conducting column 5 through the heating column 15 by an external device, and the heat-conducting column 5 conducts the heat to the heat storage body 4 through the heat-conducting block 22, so that the heat-conducting block 22 conducts the heat energy evenly to the heat storage body 4, which is conducive to uniformly transferring the heat energy to the heat storage body 4, thereby improving the heat storage speed of the device. The first drive motor 13 is started, and the first drive motor 13 drives the first shaft 12 to rotate, the first shaft 12 drives the first gear 9 to rotate, the first gear 9 drives the second gear 7 to rotate, and the second gear 7 drives the connecting shaft 8 The connecting shaft 8 drives the heat storage body 4 to rotate, so that the contact surface between the heat storage body 4 and the heat conducting block 22 is constantly changing, so that the high-temperature heat conducting column 5 is constantly in contact with the low-temperature surface on the heat storage body 4, which is conducive to the rapid conduction of heat energy and storage in the heat storage body 4, maintaining the heat energy conduction speed of the device, and further improving the heat storage speed of the device. The second drive motor 10 is started, and the second drive motor 10 drives the second rotating shaft 11 to rotate. The second rotating shaft 11 drives the support plate 37 and the heat storage cylinder 3 to rotate, and the heat storage cylinder 3 drives the heat storage body 4 to rotate, so that the previous heat storage After the heat storage body 4 is completed, it is transferred to the inside of the device and replaced with the next batch of heat storage bodies 4 for heat storage, which is beneficial to expanding the heat storage capacity of the device. The second rotating shaft 11 drives the screw rod 32 to rotate, the screw rod 32 drives the moving block 33 to move, the moving block 33 drives the fixed column 35 to move, and the fixed column 35 drives the annular plate 34 to move. When the second rotating shaft 11 drives multiple batches of heat storage bodies 4 to complete heat storage, the annular plate 34 moves to the bottom of the connecting plate 17, so that the second rotating shaft 11 drives the heat storage body 4 to continue to rotate a certain angle, the annular plate 34 drives the connecting plate 17 to move, and the connecting plate 17 with The movable column 14 moves, causing the connecting rope 16 to move, and the connecting rope 16 drives the lifting circular plate to move, and the lifting circular plate drives the card block 27 to move, and the card block 27 drives the heating column 15 to be retracted into the movable column 14, which is conducive to detaching the heating column 15 after the heat storage body 4 in the device completes heat storage, and moving the heat storage body 4 to the bottom of the fixed block 6 to prevent the loss of heat stored in the device and reduce energy loss. The second spring 24 pushes the blocking block 23 to block the bottom of the movable column 14, which is conducive to further reducing the loss of heat stored in the device and reducing energy loss.

[0050] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformation made by utilizing the contents of the present invention's description and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A heat storage device, characterized in that: include: A heat storage cylinder, wherein the heat storage cylinder is formed with a through hole; A heat storage component, comprising a heat-conducting column and a plurality of heat storage bodies, wherein the heat-conducting column is disposed in the through hole, and the plurality of heat storage bodies are rotatably disposed in the through hole and are in contact with the outer peripheral wall of the heat-conducting column and the inner peripheral wall of the through hole; as well as a first driving assembly, wherein the first driving assembly drives the plurality of heat storage bodies to rotate; The heat storage device further includes a mounting cylinder, a bottom plate, a support plate, and a second drive assembly, wherein the mounting cylinder is disposed on the bottom plate, the heat storage cylinder is rotatably disposed in the mounting cylinder, the support plate is rotatably disposed in the mounting cylinder, and the second drive assembly is disposed on the bottom plate, and the second drive assembly drives the heat storage cylinder and the support plate to rotate; The heat storage cylinder is formed with a plurality of through holes, and the heat storage device includes a plurality of heat storage components and a plurality of first drive components, each of the heat storage components is arranged in a through hole, and a plurality of the first drive components are arranged on the support plate, and each first drive component is arranged corresponding to a heat storage component; The second driving assembly includes a second driving motor and a second rotating shaft, the second driving motor is provided on the bottom plate, the second rotating shaft is provided at the output end of the second driving motor and is connected to the support plate and the heat storage cylinder; The heat storage device further includes a fixing frame, a fixing block, and a heating element, wherein the fixing frame connects the inner top wall of the mounting tube and the fixing block, the fixing block shields the plurality of through holes, and the heating element is slidably disposed through the mounting tube and the fixing block, and the heating element is used to provide heat to the heat-conducting column; The heat storage device further includes a screw, a moving block, a fixed column, a circular ring plate and a connecting plate, the screw being connected to the second driving assembly, the moving block being threadedly sleeved on the screw, the fixed column being arranged on the top of the moving block, the circular ring plate being sleeved on the fixed column, the top end of the fixed column being slidably passed through the connecting plate, one end of the connecting plate being slidably connected to the fixing frame, and the other end of the connecting plate being fixedly connected to the heating element; The heating element includes a movable column and a heating column, the movable column is fixedly connected to the connecting plate, the movable column is provided with a lifting slot and a telescopic slot, the heating column is slidably arranged in the lifting slot, and a block located in the lifting slot is provided on the circumference of the heating column; The heat storage device also includes a telescopic ring plate, a first spring, a connecting rope and a lifting ring plate. The telescopic ring plate is arranged in the telescopic groove. The first spring is arranged between the telescopic ring plate and the inner top wall of the telescopic groove. The connecting rope connects the telescopic ring plate and the lifting ring plate. The lifting ring plate is slidably sleeved on the heating column and is located in the lifting groove.

2. The heat storage device according to claim 1, characterized in that The first driving assembly includes a first driving motor and a first transmission assembly, and the first transmission assembly is connected to the output end of the first driving motor and the plurality of heat storage bodies.

3. The heat storage device according to claim 2, characterized in that One end of the heat storage body is provided with a connecting shaft; The first transmission assembly includes a first rotating shaft, a first gear and multiple second gears. The first rotating shaft is connected to the output end of the first drive motor. The first gear is sleeved on the first rotating shaft. Each of the second gears is sleeved on one of the connecting shafts and meshes with the first gear.

4. The heat storage device according to claim 1, wherein The heat storage device also includes a storage block, two shielding blocks and two second springs. The storage block is arranged between the movable column and the heat storage cylinder. The storage block is formed with a shielding groove. The two shielding blocks are slidably arranged in the shielding groove. The heating column is located between the two shielding blocks. The shielding block is formed with a guide surface near the top of the heating column. Each of the second springs connects a side of the shielding block facing away from the heating column and the storage block.

5. The heat storage device according to claim 1, wherein: The heat storage device further includes a third spring, which is arranged between the lifting ring plate and the inner top wall of the lifting slot.

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