An assembled strain energy heat conversion warmer

Abstract

The application discloses an assembled strain energy heat conversion warmer, which comprises a handle, the end of the handle is fixedly connected with a hand wheel, the hand wheel is connected with a speed reducer, the speed reducer is internally distributed with intermeshing gears, the two gears are distributed with an input shaft and an output shaft, the output shaft is connected with a connecting rod, the connecting rod is connected with a compression device, the top end of the compression device is provided with an upper heat insulation cover, the lower end of the upper heat insulation cover is provided with a bolt, the inner cavity of the compression device is distributed with a gravity heat pipe, the gravity heat pipe is connected with a hot water bag, the inside of a lower heat conduction base is provided with four driving slide rods, the center of the driving slide rods is provided with Cu-Al-Ni memory alloy, the lower end surface of the Cu-Al-Ni memory alloy is provided with an integrated conduction sheet, and the front end of the driving slide rods is provided with an L-shaped track piece. The heating function of the warmer as a whole adopts a phase change heat generation energy supply mode, efficient conversion and release of energy are realized in the phase change process of the Cu-Al-Ni memory alloy, so that stable heat energy is provided for the warmer.

Description

Technical Field

[0001] This invention belongs to the field of thermal energy device technology, specifically relating to a novel heater based on phase change heat generation. Its core technology lies in utilizing Cu-Al-Ni shape memory alloy, which can trigger a rapid and controllable phase transition process under mechanical deformation such as compression and tension, thereby efficiently converting its latent chemical energy into a continuous and stable heat output. The "assembled strain energy conversion heater" described in this patent has good potential for industrialization. The product can be positioned in niche markets such as outdoor emergency and home auxiliary safe heating. It utilizes the phase change heat generation principle of Cu-Al-Ni shape memory alloy to replace traditional resistance heating, eliminating electrical fire hazards and saving energy, which constitutes a clear product differentiation advantage. From an industrialization perspective, although its structure involves components such as a gearbox, connecting rod, and heat pipe, all are mature mechanical and heat transfer technologies, facilitating modular design and standardized production. Furthermore, the gear set inside the gearbox adopts a pre-assembled structure, having been debugged before leaving the factory. Users / factories do not need to disassemble it during assembly; only installation and fixing are required. Background Technology

[0002] Electric heaters are widely used in daily life due to their convenience and ease of operation, bringing many benefits. However, while providing warmth and comfort, electric heaters also cause numerous fires due to improper use and prolonged operation. During the heating process, the ignition point of clothing is much lower than the surface temperature of the electric heater, which can reach 600-700 degrees Celsius. Therefore, once clothing reaches its ignition point, it can ignite and spread to nearby flammable materials, creating a fire. It is therefore necessary to address this technical problem. Summary of the Invention

[0003] The purpose of this invention is to provide an assembled strain energy heat transfer heater to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: An assembled strain energy heat transfer heater includes a handwheel connected to an input shaft inside a gearbox. The input shaft drives a pinion gear that meshes with a large gear. The large gear transmits force through an output shaft to drive a connecting rod. The connecting rod is connected to four drive slide rods, each of which holds a Cu-Al-Ni shape memory alloy.

[0005] Several sets of integrated conductive sheets are arranged side by side below the Cu-Al-Ni shape memory alloy, and the integrated conductive sheets are supported by the inner surface of the compression device.

[0006] To improve heat transfer and storage, the gravity heat pipe technology is used to rapidly transfer large amounts of heat, with integrated conductive plates adjacent to the Cu-Al-Ni shape memory alloy.

[0007] To address the issue of low single-pass heat conversion efficiency, three sets of gravity heat pipes are arranged in parallel to enhance the heat transfer capacity per unit area. Each pass has an integrated conductive plate that can carry and efficiently transfer more heat.

[0008] To prevent the Cu-Al-Ni shape memory alloy from falling off due to shaking and to improve its stability, the Cu-Al-Ni shape memory alloy is located in the gap at the center of the drive slide rod, and the groove specified by the L-shaped track component limits the stroke of the drive slide rod.

[0009] To prevent gearbox failure and improve gear life, the tapered roller bearings on the shaft section need to undergo life calculations.

[0010] To prevent the end cap of the compression device from detaching and to improve its stability, both the base of the compression device and the end cap are provided with multiple threaded holes, and connecting bolts are installed in the threaded holes.

[0011] The beneficial effects of this invention are as follows: Unlike existing heaters, this invention provides an assembled strain energy heat transfer heater.

[0012] The parameters of this invention are designed as follows: the arm force is about 300N, and the effective length is 400mm. The Cu-Al-Ni shape memory alloy can meet the requirements of this device in terms of energy consumption and self-resetting performance.

[0013] In operation, rotating the handwheel causes the gearbox to output torque, which in turn drives the connecting rod in a reciprocating linear motion. The drive slide connected to the connecting rod periodically stretches and compresses the Cu-Al-Ni shape memory alloy, utilizing the phase change heat generation and mechanical dissipation of the Cu-Al-Ni shape memory alloy for heating. When the drive slide stretches the alloy, its structure contracts radially, compressing the internal phase change heat storage unit. This volume change breaks the supercooled state, rapidly releasing the phase change heat energy. Simultaneously, the mechanical heat generated by the alloy deformation also replenishes the phase change unit. The heat energy is transferred to the evaporation section of the gravity heat pipe through the integrated heat pipe conductive plate. The water inside the gravity heat pipe vaporizes upon heating and rises along the core to the condensation section, releasing the heat energy into the hot water bag. When the drive slide retracts, the alloy returns to its initial shape, detaches from the integrated heat pipe conductive plate, and finally stops the heat transfer. This structure saves a significant amount of electricity and avoids the safety hazards associated with traditional electric heaters, improving overall practicality. Attached Figure Description

[0014] Figure 1 A frontal view of the assembled strain energy heat transfer heater; Figure 2 This is a schematic diagram of the assembled strain energy transfer heater from the left side. Figure 3 This is a diagram showing the internal structure of the gearbox in an assembled strain energy heat transfer heater. Figure 4 This is a diagram of the internal structure of the compression device in an assembled strain energy heat transfer heater. Figure 5 This is a structural diagram of an assembled strain energy transfer heater.

[0015] Explanation of icon numbers: 1. Handle; 2. Handwheel; 3. Gearbox; 4. Input shaft; 5. Output shaft; 6. Connecting rod; 7. Compression device; 8. Cu-Al-Ni shape memory alloy; 9. Gravity heat pipe; 10. Lower heat-conducting base; 11. L-shaped track component; 12. Integrated conductive plate; 13. Drive slide rod; 14. Upper heat insulation cover; 15. Bolt; 16. Hot water bag; 17. Gear. Detailed Implementation

[0016] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1-4 As shown, the assembled strain energy heat transfer heater provided by the present invention includes a compression device 7, the compression device 7 is provided with a mechanical heating component inside, and a vent is provided at the top of the heater compression device 7.

[0020] The mechanical heating assembly includes an upper heat insulation cover 14 mounted on the compression device 7. Gravity heat pipes 9 are distributed inside the compression device 7, with both ends of the gravity heat pipes 9 penetrating the hot water bag 16. The lower end of the upper heat insulation cover 14 is connected to a lower heat-conducting base 10. Four driving slide rods 13 are arranged in a circumferential annular array on the inner surface of the lower heat-conducting base 10. The center of each driving slide rod 13 is clamped to a Cu-Al-Ni shape memory alloy 8, and its lower surface is adjacent to an integrated conductive plate 12. The end of the integrated conductive plate 12 is connected to the end of the gravity heat pipe 9. An annular phase change heat storage unit is also provided inside the Cu-Al-Ni shape memory alloy 8. The two are fixed together with a high-temperature resistant adhesive. The phase change heat storage unit is filled with a NaAc·3H2O-based composite material, and its heating temperature is approximately 45-50℃, which can match the heating requirements of the hot water bag. When the Cu-Al-Ni shape memory alloy 8 is directly wrapped around the outside of the phase change heat storage unit, the radial contraction and expansion of its structure directly compresses the phase change heat storage unit when the alloy is stretched and compressed, causing the material to break the thermodynamic equilibrium due to volume change and rapidly release heat energy. This heat energy is transferred to the integrated conductive plate 12 through the container wall, further enhancing the heat transfer efficiency. During use, the drive slide 13 is adjacent to the integrated conductive plate 12. The heat generated by the deformation of the Cu-Al-Ni shape memory alloy 8 is conducted through contact with the conductive plate 12 to supplement the gravity heat pipe 9. The heat energy generated by the Cu-Al-Ni shape memory alloy 8 is transferred to the pre-embedded gravity heat pipe 9, and the integrated conductive plate 12 also transfers heat to the gravity heat pipe 9. Then, the gravity heat pipe 9 heats the water in the hot water bag 16. When the drive slide 13 slides away from the conductive plate 12, the Cu-Al-Ni shape memory alloy 8 completely separates from the conductive plate 12, completely blocking subsequent heat transfer. In the compression device 7, a certain space is reserved for placing the gravity heat pipe and the integrated conductive plate. The generated heat is transferred to the hot water bag through the gravity heat pipe. Compared with the heating structure of traditional heaters, this structure achieves high heat transfer efficiency and low heat loss; it can also save a lot of electricity, avoid the safety hazards of traditional electric heaters, and improve the environmental friendliness of life.

[0021] In daily use, the Cu-Al-Ni shape memory alloy 8 is located in the gap between the four drive slide rods 13, and the Cu-Al-Ni shape memory alloy 8 is prone to falling off due to external shaking. In this invention, an L-shaped track component 11 is fixed on the drive slide rod 13. Because the drive slide rod 13 moves back and forth, the stroke of the Cu-Al-Ni shape memory alloy 8 is inconsistent with each movement. The drive slide rod 13 moves within the slot of the L-shaped track component 11, and the slider connecting rod 13 is combined with the L-shaped track component 11, which limits the stroke of each movement, thus preventing the Cu-Al-Ni shape memory alloy 8 from loosening due to shaking and improving the firmness of the Cu-Al-Ni shape memory alloy 8.

[0022] If the gearbox 3 is sealed with conventional plastic material, its sealing performance will be insufficient, making it easy for external impurities to enter the gearbox and affect the operation of internal parts. Therefore, the gearbox 3 is usually sealed with oil-resistant rubber gaskets with excellent sealing performance. This not only effectively prevents internal lubricant leakage and maintains transmission efficiency, but also significantly reduces damage to the gearbox under high-temperature conditions, thereby maximizing its service life and improving overall practicality.

[0023] Coating the surface of Cu-Al-Ni shape memory alloy with a carbon nanotube composite coating (thermal conductivity > 1500 W / m·K) reduces contact thermal resistance and significantly improves the heat transfer efficiency from phase change heat generation to the integrated conductive sheet.

[0024] The Gravity Heat Pipe 9 is a complete, enclosed metal tube made of stainless steel, carbon steel, or other high-pressure resistant metals. It contains a small amount of gaseous or liquid working medium and is completely isolated from air and other foreign matter, creating a very pure and stable environment. The Gravity Heat Pipe 9 is a closed system; the integrated heat pipe conductive fins and the evaporation section of the heat pipe are integrally formed using vacuum brazing.

[0025] The hot water bag 16 is filled with multi-level material (PCM), and paraffin-based PCM with different melting points is encapsulated in layers. The low-temperature layer (40℃) absorbs heat quickly, and the high-temperature layer (60℃) extends the heat preservation time, solving the problem of "sudden temperature drop during unloading".

[0026] The working principle of this invention is: Before use, ensure your hands are dry. This invention is for manual operation. The entire system is driven by rotating handle 1. Handwheel 2 rotates with handle 1, and input shaft 4 rotates synchronously, driving gear 17 in reducer 3 to rotate. Torque is output through output shaft 5. Four drive slide rods 13 are connected to connecting rod 6. The drive slide rods 13 hold Cu-Al-Ni shape memory alloy 8 and move within the groove of the specified L-shaped track 11. Cu-Al-Ni shape memory alloy 8 deforms and generates heat. The drive slide rods 13 are adjacent to the integrated conductive plate 12 and collect the heat generated by Cu-Al-Ni shape memory alloy 8. The heat is transferred through gravity heat pipe 9 and finally input into hot water bag 16. When the water temperature reaches the predetermined value, the drive handle 6 is stopped.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An assembled strain energy heat transfer heater, comprising a compression device 7, wherein a mechanical heating component is provided inside the compression device 7, a vent is provided at the top of the compression device 7, a gravity heat pipe 9 is fixed inside the compression device 7, the gravity heat pipe 9 passes through a hot water bag 16, a drive slide rod 13 holds a Cu-Al-Ni shape memory alloy 8, the drive slide rod 13 is adjacent to an integrated conductive plate 12, the integrated conductive plate 12 is connected to the gravity heat pipe 9, the compression device 7 is connected to a reduction gearbox 3, the reduction gearbox 3 is driven by a manually rotated handle 1, the handle 1 is combined with a handwheel 2.

2. The gearbox 3 according to claim 1, characterized in that... The handwheel is connected to an input shaft 4, the output shaft 4 has a gear 17, the gear 17 has an output shaft 5, the output shaft 5 is connected to a connecting rod 6, the connecting rod 6 receives torque output, and drives the drive slide rod 13 to move.

3. The assembled strain energy heat transfer heater according to claim 1, characterized in that: The Cu-Al-Ni shape memory alloy 8 is located in the gap of the drive slide rod 13, and the drive slide rod 13 moves within the groove specified by the L-shaped track component 11.

4. The assembled strain energy heat transfer heater according to claim 1, characterized in that: The heater's heating function utilizes a Cu-Al-Ni shape memory alloy phase change heat generation method to increase the temperature of the water in the hot water bag 16.

5. The Cu-Al-Ni shape memory alloy 8 according to claim 1 is coated with a nano-thermal conductive coating to improve the heat transfer efficiency to the gravity heat pipe 9.

6. The assembled strain energy heat transfer heater according to claim 1, characterized in that: The drive slide 13 is adjacent to the integrated conductive plate 12. The heat generated by the alloy is absorbed by the integrated conductive plate 12. The integrated conductive plate 12 is connected to a gravity heat pipe 9, which transfers the heat to the hot water bag 16.

7. The assembled strain energy heat transfer heater according to claim 1, characterized in that: The gearbox 3 adopts a modular box structure. The lower heat-conducting base 10 is provided with threaded holes and can be detachably fixed to the upper heat insulation cover 14 by cross screws. The threaded holes are provided with connecting bolts 15.

8. The hot water bag 16 according to claim 1 is filled with multi-level materials and encapsulated in layers with different melting points of paraffin base, the low-temperature layer absorbs heat quickly and the high-temperature layer prolongs the heat preservation time.

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