Energy-saving external heating tube
By combining the adjustment mechanism and temperature control equipment with a composite insulation layer and a high thermal conductivity heating wire, the problem of traditional heating tubes being unable to intelligently adjust heat has been solved, realizing intelligent dynamic power adjustment of the heating tube and improving heat utilization and safety.
Patent Information
- Application Number
- CN202511530718.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-24
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional heating elements cannot intelligently adjust the heat, resulting in overheating and waste at close range and insufficient heat at distant range. They cannot meet the heating needs of different groups of people and pose energy waste and safety hazards.
By coordinating the adjustment mechanism and temperature control equipment, the height and heat of the heating element can be flexibly adjusted. Combined with a composite insulation layer and a high thermal conductivity heating wire, the heating wire is made of nano-scale graphene and alloy materials. Temperature and displacement sensors are used for precise temperature control and dynamic power adjustment.
It achieves intelligent dynamic power adjustment of the heating element, improves heat utilization, enhances safety and adaptability, and reduces energy waste and safety hazards.
Smart Images
Figure CN121876499A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of heating element technology, and in particular relates to an energy-saving external heating element. Background Technology
[0002] External heating elements are widely used in industrial heating, civil heating, and heating equipment. In terms of heating, from electric heaters and baseboard heaters used in homes to heated tables in offices and heating equipment in large public spaces, external heating elements, as the core heating component, play an important role in converting electrical energy into heat energy and providing heat to the environment.
[0003] When the heating element is close to the human body, traditional heating elements still heat at a fixed power, resulting in excessively high local temperatures. This not only wastes energy but may also cause discomfort or even burns to the user. When the heating element is far from the human body, its heat cannot rise in time, making it difficult to effectively transfer heat to the body, greatly reducing the heating effect while continuously increasing energy consumption. In a home environment, when children and adults use the same heating device, their height difference leads to different distances from the heating element. A fixed-height heating element cannot ensure that both can obtain a comfortable and efficient heating experience. Traditional heating elements lack efficient heat reflection and insulation structures, causing a large amount of heat to dissipate into the surrounding environment. This not only wastes energy but also causes unused heat to accumulate locally, leading to increased temperatures in surrounding equipment and the environment, posing a safety hazard.
[0004] To address these issues, we provide an energy-saving external heating element. Summary of the Invention
[0005] The purpose of this invention is to provide an energy-saving external heating element. By coordinating the adjustment mechanism, the heating element body, and the temperature control device, it solves the problems in the prior art where most heating elements are fixedly installed, and even if they have height adjustment functions, their range and accuracy are limited, making it impossible to intelligently adjust the heat according to distance, resulting in difficulty in heating up at close range and waste of heat at long distance.
[0006] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution.
[0007] This invention relates to an energy-saving external heating element, comprising a base shell, an adjustment mechanism fixedly connected to one side of the top of the base shell, a heating element body disposed on the top of the base shell, a temperature control device fixedly connected to one side of the heating element body, and a heat reflection device disposed at the bottom of the heating element body. The adjustment mechanism includes a first mounting bracket disposed on one side of the top of the base shell, a first limiting groove formed on one side of the first mounting bracket, a positioning post disposed within the inner cavity of the first limiting groove, a first limiting seat fixedly connected to one side of the positioning post, a screw threaded through the top of the positioning post, the top of the screw threaded through the inner cavity of the first limiting groove and extending to the outside of the first limiting groove, the bottom of the screw threadedly connected to the first limiting groove via a bearing, a first spring sleeved on the surface of the screw threadedly connected to the bottom of the screw threadedly connected to the positioning post, and the heating element body comprising a composite insulation layer, a vacuum insulation layer fixedly connected to the inner wall of the composite insulation layer. A high thermal conductivity heating wire is fixedly connected to the inner wall of the heating layer. By rotating the screw, the positioning column moves up and down in the first limiting groove. The first spring acts as a buffer and reset, thereby realizing flexible height adjustment of the heating tube body to adapt to different usage scenarios and heat dissipation needs. The composite insulation layer is composed of an outer layer of high-temperature resistant ceramic fiber insulation cotton and an inner layer of aerogel felt. The high-temperature resistant ceramic fiber insulation cotton has excellent high-temperature resistance and heat insulation effect, and can withstand high temperatures without melting. The aerogel felt has an extremely low thermal conductivity, which can effectively prevent heat loss. A vacuum insulation layer is fixedly connected to the inner wall of the composite insulation layer. The vacuum insulation layer forms a sealed vacuum cavity through a vacuuming process, eliminating air convection heat conduction and further improving the insulation performance. A high thermal conductivity heating wire is fixedly connected to the inner wall of the vacuum insulation layer. The high thermal conductivity heating wire is made of nano-scale graphene and alloy materials, which has the characteristics of high conductivity and low resistance. After being energized, it can heat up quickly and efficiently, and the heating is uniform and stable.
[0008] The invention is further configured such that the temperature control device includes a second limiting seat, which is disposed on the other side of the top of the bottom shell. A protective shell is fixedly connected to the top of the second limiting seat. The inner cavity of the protective shell integrates a temperature sensor, a controller, a frequency converter, and a displacement sensor. The output end of the temperature sensor is unidirectionally electrically connected to the input end of the controller, the output end of the controller is unidirectionally electrically connected to the input end of the frequency converter, and the output end of the displacement sensor is unidirectionally electrically connected to the input end of the controller. The temperature sensor monitors the temperature of the heating element in real time and transmits the data to the controller. The controller controls the frequency converter to adjust the power supply, thereby achieving precise temperature control and energy saving. The displacement sensor monitors the position of the device in real time. Once it detects a change in the height of the heating element, it immediately feeds back the signal to the controller. In conjunction with the temperature sensor, the controller can more quickly and accurately determine the distance change, and then control the frequency converter with a more precise adjustment range, realizing intelligent dynamic power adjustment under dual monitoring, ensuring stable operation of the device and improving safety.
[0009] The invention is further configured such that a second fixing frame is fixedly connected to the other side of the top of the bottom shell, a second limiting groove is provided on one side of the second fixing frame, a sliding rod is movably connected to the inner cavity of the second limiting groove, a second spring is slidably connected to the surface of the sliding rod, a moving column is slidably connected to the surface of the sliding rod, and one side of the moving column is fixedly connected to the second limiting seat. The structure composed of the second fixing frame, the second limiting groove, the sliding rod, the second spring, and the moving column is connected to the second limiting seat. This elastic structure can adaptively fine-tune the position of the second limiting seat during installation, which facilitates installation with the heating element body. During operation, it can absorb the stress generated by the thermal expansion and contraction and displacement of the heating element, ensuring the connection stability between the temperature control device and the heating element body, preventing component damage due to stress concentration, and further enhancing the overall reliability of the equipment.
[0010] The present invention is further configured such that a slot is provided on one side of the first limiting seat and one side of the second limiting seat, and both sides of the heating tube body extend into the inner cavity of the slot. The slot cooperates with both sides of the heating tube body to form a "plug and play" connection method, which simplifies the installation process of the heating tube body, reduces labor costs and assembly time. The lateral limiting function provided by the slot can effectively resist vibration, external force and other factors, and prevent the heating tube from falling off during operation.
[0011] The present invention is further configured such that a connector is fixedly connected to the surface of the second limiting seat, and a joint is fixedly connected to the inner cavity of the connector. The connector and the internal joint enable a fast and reliable electrical connection between the heating element and an external power supply or control system.
[0012] The invention is further configured such that a fixing plate is fixedly connected to both sides of the top of the bottom shell, a protective cover is provided on the top of the fixing plate, a through groove is provided on the top of the protective cover, a first mounting hole is provided on both sides of the top of the protective cover, and a second mounting hole is provided on both sides of the top of the fixing plate to cooperate with the first mounting hole. The protective cover can prevent personnel from accidentally touching and getting burned and prevent foreign objects from entering, thus ensuring the safety of equipment and personnel.
[0013] The invention is further configured such that an air inlet is provided at the bottom of the bottom shell, and the air inlets are symmetrically arranged. The symmetrically arranged air inlets at the bottom of the bottom shell can guide external cold air to flow in from below, and after flowing through the heating tube, the hot air is discharged from above, forming natural convection or forced heat dissipation in conjunction with a fan, which effectively helps the heating tube dissipate heat and avoids the equipment performance and service life being affected by excessive temperature.
[0014] The present invention is further configured such that a heat-conducting sleeve is fixedly connected to the surface of the heating tube body, and a heat sink is fixedly connected to the surface of the heat-conducting sleeve. The heat sink is equidistantly arranged. The cooperation between the heat-conducting sleeve and the heat sink can dissipate the heat generated by the heating tube body in a timely manner, thereby achieving the purpose of efficient heat dissipation.
[0015] The invention is further configured such that a knob is fixedly connected to the top of the screw, and the surface of the knob is provided with anti-slip texture, so that the operator can manually rotate the screw to adjust the height of the heating element body.
[0016] The invention is further configured such that the heat reflection device includes a reflector plate disposed below the heating tube body. One side of the reflector plate is movably connected to a second limiting seat via a bearing, and a rotating rod is fixedly connected to the other side of the reflector plate. One side of the rotating rod extends through the inner cavity of the first limiting seat, and a sector gear is fixedly connected to the surface of the rotating rod. A motor is fixedly connected to the inner cavity of the second limiting seat, and a circular gear is fixedly connected to the output end of the motor. The circular gear meshes with the sector gear, and the motor drives the circular gear to rotate the sector gear and the rotating rod. By adjusting the angle of the reflector plate, the direction and range of heat reflection can be adjusted according to actual needs, concentrating heat towards the target area, reducing heat loss, and improving heat utilization. This flexible adjustment feature makes the device suitable for different heating demand scenarios, enhancing the practicality and adaptability of the device.
[0017] The present invention has the following beneficial effects.
[0018] 1. This invention achieves precise fine-tuning of the height of the heating element body through the threaded engagement of the screw and the positioning post, combined with the elastic buffer of the first spring. The displacement sensor can monitor the changes in the height of the heating element body in real time and accurately, and feed the data back to the controller with extremely high sensitivity. Together with the temperature sensor in the temperature control device, the two work together to build a dual monitoring system. When the distance between the heating element and the human body or the heated object changes, the controller can more quickly and accurately determine the distance change based on the displacement data of the displacement sensor and the temperature signal of the temperature sensor, and then control the frequency converter to adjust the input power with a more precise adjustment range. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below.
[0020] Figure 1 This is a 3D diagram of an energy-saving external heating element.
[0021] Figure 2 This is a bottom-view perspective view of an energy-saving external heating element.
[0022] Figure 3 This is a three-dimensional view of the bottom shell of an energy-saving external heating element.
[0023] Figure 4 This is a perspective view of the first limiting seat and its connection structure in an energy-saving external heating tube.
[0024] Figure 5 This is a three-dimensional view of a heat reflection device in an energy-saving external heating tube.
[0025] Figure 6 This is a cross-sectional view of the first limiting seat in an energy-saving external heating tube.
[0026] Figure 7 For an energy-saving external heating element Figure 7 Enlarged view of point A.
[0027] Figure 8 This is a structural diagram of the main body of an energy-saving external heating element.
[0028] Figure 9 This is a system schematic diagram of a temperature control device in an energy-saving external heating element.
[0029] In the attached diagram: 1. Bottom shell; 2. Adjustment mechanism; 21. First mounting bracket; 22. First limiting groove; 23. Positioning post; 24. First limiting seat; 25. Screw; 26. First spring; 3. Heating element body; 31. Composite insulation layer; 32. Vacuum insulation layer; 33. High thermal conductivity heating wire; 4. Temperature control device; 41. Second limiting seat; 42. Protective shell; 43. Temperature sensor; 44. Controller; 45. Variable frequency power regulator; 46. Displacement. 5. Sensor; 6. Heat reflection device; 7. Reflector plate; 8. Rotating rod; 9. Sector gear; 10. Motor; 11. Circular gear; 12. Second fixing frame; 13. Second limiting groove; 14. Slide rod; 15. Second spring; 16. Moving column; 17. Slot; 18. Connector; 19. Fixing plate; 20. Protective cover; 11. Through groove; 12. First mounting hole; 13. Second mounting hole; 14. Air inlet; 15. Heat-conducting sleeve; 26. Heat sink. Detailed Implementation
[0030] The technical solutions of the present invention will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present invention, and not all embodiments.
[0031] Example 1
[0032] Please see Figure 1-9 This invention relates to an energy-saving external heating element, comprising a base shell 1, an adjustment mechanism 2 fixedly connected to one side of the top of the base shell 1, a heating element body 3 disposed on the top of the base shell 1, a temperature control device 4 fixedly connected to one side of the heating element body 3, and a heat reflection device 5 disposed at the bottom of the heating element body 3. The adjustment mechanism 2 includes a first mounting bracket 21 disposed on one side of the top of the base shell 1, a first limiting groove 22 formed on one side of the first mounting bracket 21, a positioning post 23 disposed within the inner cavity of the first limiting groove 22, and a fixed connection on one side of the positioning post 23. The device includes a first limiting seat 24, a screw 25 that passes through the top of the positioning post 23, the top of the screw 25 that passes through the inner cavity of the first limiting groove 22 and extends to the outside of the first limiting groove 22, the bottom of the screw 25 that is movably connected to the first limiting groove 22 through a bearing, a first spring 26 that is sleeved on the surface of the screw 25, and the bottom of the screw 25 that is threadedly connected to the positioning post 23. The heating tube body 3 includes a composite insulation layer 31, a vacuum insulation layer 32 that is fixedly connected to the inner wall of the composite insulation layer 31, and a high thermal conductivity heating wire 33 that is fixedly connected to the inner wall of the vacuum insulation layer 32.
[0033] Specifically: By rotating the screw 25, the positioning column 23 is driven to move up and down within the first limiting groove 22. The first spring 26 plays a buffering and resetting role, thereby realizing flexible height adjustment of the heating tube body 3 to adapt to different usage scenarios and heat dissipation requirements. The composite insulation layer 31 is composed of an outer layer of high-temperature resistant ceramic fiber insulation cotton and an inner layer of aerogel felt. The high-temperature resistant ceramic fiber insulation cotton has excellent high-temperature resistance and heat insulation effect, and can withstand high temperatures without melting. The aerogel felt has an extremely low thermal conductivity, which can effectively prevent heat loss. A vacuum insulation layer 32 is fixedly connected to the inner wall of the composite insulation layer 31. The vacuum insulation layer 32 forms a sealed vacuum cavity through a vacuuming process, eliminating air convection heat conduction and further improving the heat insulation performance. A high thermal conductivity heating wire 33 is fixedly connected to the inner wall of the vacuum insulation layer 32. The high thermal conductivity heating wire 33 is made of nano-scale graphene and alloy materials, which has the characteristics of high conductivity and low resistance. After being energized, it can heat up quickly and efficiently, and the heating is uniform and stable.
[0034] Example 2
[0035] Please see Figure 1-9Based on Embodiment 1, the temperature control device 4 includes a second limiting seat 41, which is located on the other side of the top of the bottom shell 1. A protective shell 42 is fixedly connected to the top of the second limiting seat 41. The inner cavity of the protective shell 42 integrates a temperature sensor 43, a controller 44, a frequency converter 45, and a displacement sensor 46. The output end of the temperature sensor 43 is unidirectionally electrically connected to the input end of the controller 44, the output end of the controller 44 is unidirectionally electrically connected to the input end of the frequency converter 45, and the output end of the displacement sensor 46 is unidirectionally electrically connected to the input end of the controller 44. A second fixing frame 6 is fixedly connected to the other side of the top of the bottom shell 1. A second limiting groove 7 is opened on one side of the second fixing frame 6. A sliding rod 8 is movably connected to the inner cavity of the second limiting groove 7. A second spring 9 is slidably connected to the surface of the sliding rod 8, and a moving column 10 is slidably connected to the surface of the sliding rod 8. One side of the moving column 10 is fixedly connected to the second limiting seat 41. The heating tube body 3 is fixedly connected to the first limiting seat 24 and the second limiting seat 41, and both sides of the first limiting seat 24 and the second limiting seat 41 are provided with slots 11. Both sides of the heating tube body 3 extend into the inner cavity of the slots 11. The surface of the second limiting seat 41 is fixedly connected to a connector 12, and the inner cavity of the connector 12 is fixedly connected to a joint. The top of the bottom shell 1 is fixedly connected to both sides of the top of the bottom shell 1. The top of the fixed plate 13 is provided with a protective cover 14. The top of the protective cover 14 is provided with a through groove 15. The top of the protective cover 14 is provided with a first mounting hole 16 on both sides of the top of the protective cover 14. The top of the fixed plate 13 is provided with a second mounting hole 17 that cooperates with the first mounting hole 16. The bottom of the bottom shell 1 is provided with an air inlet 18, which is symmetrically arranged. The surface of the heating tube body 3 is fixedly connected to a heat-conducting sleeve 19, and the surface of the heat-conducting sleeve 19 is fixedly connected to a heat sink 20, which is equidistantly arranged. The top of the screw 25 is fixedly connected to a knob, and the surface of the knob is provided with anti-slip texture.
[0036] Specifically: Temperature sensor 43 monitors the temperature of the heating element in real time and transmits the data to controller 44. Controller 44 controls frequency converter 45 to adjust the power supply, achieving precise temperature control and energy saving. Displacement sensor 46 monitors the equipment position in real time. Once a change in the height of the heating element body 3 is detected, it immediately feeds the signal back to controller 44. Working in conjunction with temperature sensor 43, controller 44 can more quickly and accurately determine the distance change, and then control frequency converter 45 with a more precise adjustment range. This achieves intelligent dynamic power adjustment under dual monitoring, ensuring stable equipment operation and improving safety. The structure consisting of second fixed frame 6, second limiting groove 7, sliding rod 8, second spring 9, and moving column 10 is connected to second limiting seat 41. This elastic structure can adaptively fine-tune the position of second limiting seat 41 during installation, facilitating installation with the heating element body 3. During operation, it can absorb the stress generated by thermal expansion and contraction and displacement of the heating element, ensuring the connection stability between temperature control device 4 and heating element body 3, and preventing component damage due to stress concentration. To further enhance the overall reliability of the equipment, the slot 11 and the two sides of the heating tube body 3 cooperate to form a "plug and play" connection, simplifying the installation process of the heating tube body 3, reducing labor costs and assembly time. The lateral limiting function provided by the slot 11 can effectively resist vibration, external force and other factors, and prevent the heating tube from falling off during operation. The connector 12 and internal joints realize a fast and reliable electrical connection between the heating tube and the external power supply or control system. The protective cover 14 can prevent personnel from accidentally touching and burning and foreign objects from entering, ensuring the safety of the equipment and personnel. The air inlets 18 symmetrically arranged at the bottom of the bottom shell 1 can guide external cold air to flow in from below, and after flowing through the heating tube, hot air is discharged from above, forming natural convection or forced cooling with the fan, effectively helping the heating tube to dissipate heat and avoiding the impact of excessive temperature on equipment performance and service life. The cooperation of the heat-conducting sleeve 19 and the heat sink 20 can timely discharge the heat generated by the heating tube body 3 to achieve efficient heat dissipation. The knob allows the operator to manually rotate the screw 25 to adjust the height of the heating tube body 3.
[0037] Example 3
[0038] Please see Figure 1-9 Based on Embodiment 1, the heat reflection device 5 includes a reflector plate 51, which is disposed below the heating tube body 3. One side of the reflector plate 51 is movably connected to the second limiting seat 41 via a bearing, and the other side of the reflector plate 51 is fixedly connected to a rotating rod 52. One side of the rotating rod 52 extends through the inner cavity of the first limiting seat 24, and a sector gear 53 is fixedly connected to the surface of the rotating rod 52. A motor 54 is fixedly connected to the inner cavity of the second limiting seat 41, and a circular gear 55 is fixedly connected to the output end of the motor 54. The circular gear 55 meshes with the sector gear 53.
[0039] Specifically: Motor 54 drives circular gear 55 to rotate sector gear 53 and rotating rod 52, adjusting the angle of reflector 51. The direction and range of heat reflection can be adjusted according to actual needs, concentrating heat towards the target area, reducing heat loss, and improving heat utilization. This flexible adjustment feature makes the equipment suitable for different heating needs, enhancing the practicality and adaptability of the equipment.
[0040] The working principle of this invention is as follows: Inside the heating tube body 3, a high thermal conductivity heating wire 33, made of nano-scale graphene and alloy materials, rapidly and efficiently converts electrical energy into heat energy after being energized, thanks to its high conductivity and low resistance characteristics. The heating is uniform and stable. The composite insulation layer 31 and the vacuum insulation layer 32 form a double insulation barrier. The outer layer of high-temperature resistant ceramic fiber insulation cotton resists high temperatures and does not melt. The inner layer of aerogel felt reduces heat loss due to its extremely low thermal conductivity. The vacuum insulation layer 32 eliminates air convection heat conduction through the vacuum cavity, so that the heat is concentrated inside, improving energy utilization efficiency. Temperature sensor 43 monitors the temperature of the heating element in real time and transmits the data to controller 44. Controller 44 precisely controls the power supply of frequency converter 45 based on a preset temperature threshold. When the temperature is higher than the set value, the power is reduced; when it is lower than the set value, the power is increased, achieving precise temperature control and energy saving. Displacement sensor 46 monitors the position of the equipment in real time. If the height of the heating element body 3 changes due to fine-tuning of adjustment mechanism 2 or external collision, the signal is immediately fed back to controller 44. This data, combined with that from temperature sensor 43, enables controller 44 to more quickly and accurately determine distance changes and adjust frequency converter 45 with more precise amplitude. This achieves intelligent dynamic power adjustment under dual monitoring, ensuring stable operation of the equipment. By rotating the knob on the top of the screw 25, the screw 25 engages with the positioning post 23, causing the positioning post 23 to move up and down within the first limiting groove 22. The first spring 26 provides buffering and restoring force, enabling flexible adjustment of the height of the heating tube body 3 to adapt to different usage scenarios and heat dissipation requirements. The second fixing bracket 6, the second limiting groove 7, the slide bar 8, the second spring 9, and the moving post 10 on the other side of the top of the bottom shell 1 form an elastic structure. During installation, the position of the second limiting seat 41 is adaptively and finely adjusted to facilitate engagement with the heating tube body 3. During operation, it absorbs thermal expansion and contraction and displacement stress, ensuring a stable connection between the temperature control device 4 and the heating tube body 3. In the heat reflection device 5, the motor 54 drives the circular gear 55 to rotate, which in turn drives the sector gear 53 and the rotating rod 52 to rotate, thereby adjusting the angle of the reflector 51. According to the actual heating requirements, adjusting the reflector 51 can change the direction and range of heat reflection, concentrate the heat to the target area, reduce heat loss, improve heat utilization, and enhance the practicality and adaptability of the equipment in different scenarios. The air inlets 18 symmetrically arranged at the bottom of the bottom shell 1 guide the inflow of external cold air. When the air flows through the heating tube body 3, it absorbs heat and the hot air is discharged from the top, forming natural convection heat dissipation. The heat-conducting sleeve 19 and the heat sink 20 equidistantly arranged on the surface of the heating tube body 3 further accelerate the heat conduction and dissipation, ensuring that the heating tube maintains a suitable temperature during operation and avoiding performance and service life due to overheating.
[0041] The preferred embodiments of the present invention disclosed above are only for the purpose of illustrating the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation described herein. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can better understand and utilize the present invention.
Claims
1. An energy-saving external heating tube comprising a bottom shell (1), characterized in that: An adjustment mechanism (2) is fixedly connected to one side of the top of the bottom shell (1), a heating tube body (3) is provided on the top of the bottom shell (1), a temperature control device (4) is fixedly connected to one side of the heating tube body (3), and a heat reflection device (5) is provided at the bottom of the heating tube body (3). The adjustment mechanism (2) includes a first mounting bracket (21), which is located on one side of the top of the bottom shell (1). A first limiting groove (22) is provided on one side of the first mounting bracket (21). A positioning post (23) is provided in the inner cavity of the first limiting groove (22). A first limiting seat (24) is fixedly connected to one side of the positioning post (23). A screw (25) is provided through the top of the positioning post (23). The top of the screw (25) passes through the inner cavity of the first limiting groove (22) and extends to the outside of the first limiting groove (22). The bottom of the screw (25) is movably connected to the first limiting groove (22) through a bearing. A first spring (26) is sleeved on the surface of the screw (25). The bottom of the screw (25) is threadedly connected to the positioning post (23). The heating tube body (3) includes a composite insulation layer (31), and a vacuum insulation layer (32) is fixedly connected to the inner wall of the composite insulation layer (31). A high thermal conductivity heating wire (33) is fixedly connected to the inner wall of the vacuum insulation layer (32).
2. The energy-saving external heat-generating tube according to claim 1, characterized in that: The temperature control device (4) includes a second limiting seat (41), which is located on the other side of the top of the bottom shell (1). A protective shell (42) is fixedly connected to the top of the second limiting seat (41). The inner cavity of the protective shell (42) integrates a temperature sensor (43), a controller (44), a frequency converter (45), and a displacement sensor (46). The output end of the temperature sensor (43) is unidirectionally electrically connected to the input end of the controller (44). The output end of the controller (44) is unidirectionally electrically connected to the input end of the frequency converter (45). The output end of the displacement sensor (46) is unidirectionally electrically connected to the input end of the controller (44).
3. The energy saving external heat generating tube according to claim 2, characterized in that: A second fixing frame (6) is fixedly connected to the other side of the top of the bottom shell (1). A second limiting groove (7) is provided on one side of the second fixing frame (6). A slide rod (8) is movably connected to the inner cavity of the second limiting groove (7). A second spring (9) is slidably connected to the surface of the slide rod (8). A moving column (10) is slidably connected to the surface of the slide rod (8). One side of the moving column (10) is fixedly connected to the second limiting seat (41).
4. The energy saving external heat generating tube according to claim 3, characterized in that: A slot (11) is provided on one side of the first limiting seat (24) and one side of the second limiting seat (41), and both sides of the heating tube body (3) extend into the inner cavity of the slot (11).
5. The energy saving external heat generating tube according to claim 2, wherein: The surface of the second limiting seat (41) is fixedly connected to a connector (12), and the inner cavity of the connector (12) is fixedly connected to a joint.
6. The energy saving external heat generating tube according to claim 1, wherein: The bottom shell (1) has a fixed plate (13) fixedly connected to both sides of the top. The fixed plate (13) has a protective cover (14) on the top. The protective cover (14) has a through groove (15) on the top. The protective cover (14) has a first mounting hole (16) on both sides of the top. The fixed plate (13) has a second mounting hole (17) on both sides of the top, which is used in conjunction with the first mounting hole (16).
7. The energy saving external heat generating tube according to claim 1, wherein: The bottom of the bottom shell (1) is provided with an air inlet (18), and the air inlets (18) are symmetrically arranged.
8. An energy-saving external heating element according to claim 1, characterized in that: A heat-conducting sleeve (19) is fixedly connected to the surface of the heating tube body (3), and a heat sink (20) is fixedly connected to the surface of the heat-conducting sleeve (19). The heat sink (20) is equidistantly arranged.
9. The energy saving external heat generating tube according to claim 1, wherein: A knob is fixedly connected to the top of the screw (25), and the surface of the knob is provided with anti-slip texture.
10. The energy saving external heat generating tube according to claim 2, wherein: The heat reflection device (5) includes a reflector plate (51), which is located below the heating tube body (3). One side of the reflector plate (51) is movably connected to the second limiting seat (41) via a bearing. The other side of the reflector plate (51) is fixedly connected to a rotating rod (52). One side of the rotating rod (52) extends into the inner cavity of the first limiting seat (24). A sector gear (53) is fixedly connected to the surface of the rotating rod (52). A motor (54) is fixedly connected to the inner cavity of the second limiting seat (41). A circular gear (55) is fixedly connected to the output end of the motor (54). The circular gear (55) meshes with the sector gear (53).