Multi-charging energy storage warmer compatible with sunlight, heat energy and electric energy
By combining light-absorbing, heat-conducting, and electrical-conducting ohmic heating components with phase change materials, the problems of reusability, temperature control, and multi-functional compatibility of hand warmers have been solved, achieving safe, low-cost, and environmentally friendly thermal energy storage.
Patent Information
- Application Number
- CN202310267229.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-03-20
- Publication Date
- 2026-03-03
AI Technical Summary
Existing hand warmers have problems such as not being reusable, poor temperature control, poor safety, and incompatibility with solar, thermal, and electrical energy storage, resulting in environmental pollution and high usage costs.
By combining a light-absorbing, heat-conducting, and electrical ohmic heating component, a phase change material with a specific phase change temperature, a thermal insulation wrapping component with a specific surface area, and a thermally conductive component with a specific surface area, multiple energy storage of sunlight, heat, and electricity can be achieved, and controllable heating can be achieved by controlling the temperature of the phase change material.
This invention enables reusable, safe, and temperature-controllable hand warmers, reducing waste emissions, lowering usage costs, and improving heat utilization.
Smart Images
Figure CN121587907A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of heating devices, specifically relating to a hand warmer that is compatible with sunlight, heat energy, and electrical energy and can be recharged and stored. Background Technology
[0002] With China's rapid economic development and the characteristics of its climate change, people in northern regions have begun to use heat packs to keep warm in winter, especially for women during menstruation, lower back pain, and feet exposed to cold. Heat packs are inexpensive and convenient to use. However, they also have some problems. First, the temperature is sometimes difficult to control, sometimes causing burns. Second, because they are disposable, a large number of used heat packs are generated in winter, harming the environment and wasting materials. Current hand warmers have the following problems: they are not reusable, causing environmental problems due to waste discharge; safety is difficult to control; temperature is difficult to control, posing a risk of burns; they cannot store heat through sunlight, heating, or electricity; multiple uses result in high costs; and current hand warmers cannot be recharged, nor can they be heated by sunlight, radiators, or electricity. Their insulation is also inadequate, resulting in significant heat loss into the air. Electric blankets can only be used with electricity, which is unsafe while sleeping, and they cannot store heat. Hot water bottles can store heat, but require boiling water, have initially very high temperatures that are difficult to control, and cannot store heat through sunlight. They also require frequent refills of hot water, wasting water resources, and their insulation is poor, leading to heat loss. Air conditioners can regulate temperature, but they cannot be carried around for heating. Therefore, there is currently a lack of reusable, temperature-controlled hand warmers that can simultaneously store heat through sunlight, radiators, and electricity. To solve the above problems, it is necessary to propose a hand warmer that is compatible with sunlight, heat energy, and electrical energy and can be charged and stored in multiple ways. Summary of the Invention
[0003] To achieve the above objectives, the technical solution of the present invention is as follows: a hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple charges and energy storage, the hand warmer comprising a light-absorbing, heat-conducting, and electrical ohmic heating component, a phase change material with a specific phase change temperature, a heat-insulating wrapping component with a specific surface area, and a heat-conducting component with a specific surface area. The light-absorbing, heat-conducting, and electrical ohmic heating component is located on the outer surface of the phase change material with the specific phase change temperature, and the light-absorbing, heat-conducting, and electrical ohmic heating component and the phase change material with the specific phase change temperature are located inside the outer surfaces of the heat-insulating wrapping component and the heat-conducting component with the specific surface area.
[0004] As an improvement of the present invention, the light-absorbing, heat-conducting, and electrical-conducting ohmic heating component is made of a dark-colored conductive metallic material and / or a non-polar non-metallic material.
[0005] As an improvement of this invention, the dark-colored conductive non-metallic material is light-absorbing graphene, carbon nanotubes, or graphite. Thicker graphene films have a deeper color strain and higher light absorption efficiency, while thinner films are almost transparent and absorb very little light. The dark-colored conductive metallic material is a copper or iron film containing micron-sized copper or iron powder; or a copper or iron film containing nano-sized copper or iron powder.
[0006] As an improvement of the present invention, the specific temperature of the phase change material with a specific phase change temperature is less than or equal to 60 degrees.
[0007] As an improvement of the present invention, the specific surface area of the heat insulation wrapping component is the outer surface of the heat pack that does not come into contact with the human body or clothing.
[0008] As an improvement of the present invention, the specific surface area of the heat-conducting component is the surface area in contact with the human body.
[0009] By setting insulated positions, heat is transferred to the human body instead of being transferred to the air, thus avoiding heat loss and improving heat utilization.
[0010] As an improvement of the present invention, the thermal insulation wrapping component with a specific surface area is foam or an organic material containing air bubbles, and its thermal conductivity is less than 0.2 W / (m*K).
[0011] As an improvement of the present invention, the thermally conductive component with a specific surface area is a metal, semiconductor, or crystal, and its thermal conductivity is greater than 1.W / (m*K).
[0012] As an improvement of the present invention, the light-absorbing, heat-conducting, and electrical-conducting ohmic heating component and the phase change material with a specific phase change temperature are both in a planar or layered form, and the two are in surface contact with each other.
[0013] As an improvement of the present invention, the light-absorbing, heat-conducting, and electrical-ohmic heating component and the phase change material with a specific phase change temperature are flexible and foldable.
[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: The hand warmer of this invention is compatible with sunlight, heat energy, and electrical energy and can be recharged and stored multiple times. It uses a light-absorbing, heat-conducting, and electrical ohm heating component to charge the potential energy of the phase change material with sunlight or electricity. It guides heat to the human body surface through a heat-insulating wrapping component with a specific surface area and a heat-conducting component with a specific surface area. It can be charged with potential energy by sunlight, radiators, or electricity. It can be reused, and there are no environmental problems caused by waste discharge. It is safe and easy to control. The temperature is easy to control and it is not easy to burn. It can store heat through sunlight, heating, or electricity. The cost is relatively high for multiple uses. It has a wide range of applications and can be widely promoted, with a huge application market. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of the hand warmer in this embodiment, which is compatible with sunlight, heat energy, and electrical energy and can be recharged and stored multiple times.
[0016] List of symbols in the attached diagram: 1. Light-absorbing, heat-conducting, and electrical-conducting ohmic heating component; 2. Phase change material with a specific phase change temperature; 3. Insulating wrapping component with a specific surface area; 4. Heat-conducting component with a specific surface area. Implementation
[0017] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.
[0018] Example: See Figure 1This embodiment describes a hand warmer compatible with sunlight, heat, and electrical energy, capable of multiple charges and energy storage. The hand warmer includes a light-absorbing, heat-conducting, and electrical-conducting ohmic heating element 1, a phase change material 2 with a specific phase change temperature, a heat-insulating wrapping element 3 with a specific surface area, and a heat-conducting element 4 with a specific surface area. The light-absorbing, heat-conducting, and electrical-conducting ohmic heating element 1 is located on the outer surface of the phase change material 2, while the light-absorbing, heat-conducting, and electrical-conducting ohmic heating element 1 and the phase change material 2 are located inside the outer surfaces of the heat-insulating wrapping element 3 and the heat-conducting element 4. The light-absorbing, heat-conducting, and electrical-conducting ohmic heating element 1 is made of a dark-colored conductive metallic material and / or a non-polar non-metallic material. The dark-colored, conductive, non-metallic material is light-absorbing graphene, carbon nanotubes, or graphite; the dark-colored, conductive metallic material is a copper or iron film with micron-sized copper or iron powder; or the dark-colored, conductive metallic material is a copper or iron film with nano-sized copper or iron powder. The phase change material 2 has a specific phase change temperature of less than or equal to 60 degrees Celsius. The specific surface area of the heat-insulating wrapping component 3 is the outer surface of a hand warmer that does not come into contact with the human body or clothing. The specific surface area of the heat-conducting component 4 is the surface area that comes into contact with the human body. The specific surface area of the heat-insulating wrapping component 3 is foam or organic material containing bubbles, and its thermal conductivity is less than 0.2 W / (m*K). The specific surface area of the heat-conducting component 4 is metal, semiconductor, or crystal, and its thermal conductivity is greater than 1 W / (m*K). The light-absorbing, heat-conducting, and electrical-conducting ohmic heating component 1 and the phase change material 2 with a specific phase change temperature are both planar or layered, and they are in surface contact with each other. The light-absorbing, heat-conducting, and electrical-conducting ohmic heating component 1 and the phase change material 2 with a specific phase change temperature are both flexible and foldable.
[0019] In this embodiment, the light-absorbing graphene or carbon nanotubes in the hand warmer can store heat through sunlight. The phase change material (PCM) then comes into layered contact with the graphene and carbon nanotubes. The latter has a high thermal conductivity and a large unfolded area, enabling heat storage similar to that of a radiator. The graphene and carbon nanotubes are also electrically conductive, allowing for electrical heat storage. Temperature control is achieved through the PCM, and reusability is achieved through the heat storage and release mechanisms of the PCM. Low cost and reduced waste emissions are achieved through repeated phase change energy storage and release. Safety is ensured by controlling the phase change temperature of the PCM. Therefore, our component design enables a reusable, temperature-controlled hand warmer that can simultaneously store heat through sunlight, radiators, and electricity.
[0020] It should be noted that the above content merely illustrates the technical concept of the present invention and should not be construed as limiting the scope of protection of the present invention. For those skilled in the art, various improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.
Claims
1. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple charges and energy storage, characterized in that: The hand warmer includes a light-absorbing, heat-conducting, and electrical-conducting ohmic heating component, a phase change material with a specific phase change temperature, a heat-insulating wrapping component with a specific surface area, and a heat-conducting component with a specific surface area. The light-absorbing, heat-conducting, and electrical-conducting ohmic heating component is located on the outer surface of the phase change material with the specific phase change temperature, while the light-absorbing, heat-conducting, and electrical-conducting ohmic heating component and the phase change material with the specific phase change temperature are located inside the outer surfaces of the heat-insulating wrapping component and the heat-conducting component with the specific surface area.
2. The hand warmer that is compatible with sunlight, heat energy, and electrical energy and can be recharged and stored multiple times, as described in claim 1, is characterized in that... The light-absorbing, heat-conducting, and electrical-conducting ohmic heating element is made of a dark-colored conductive metallic material and / or a non-polar non-metallic material.
3. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 2, is characterized in that... The dark-colored conductive non-metallic material is light-absorbing graphene, carbon nanotubes, or graphite; the dark-colored conductive metallic material is a copper film or iron film with micron-sized copper or iron powder; or the dark-colored conductive metallic material is a copper film or iron film with nano-sized copper or iron powder.
4. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... A phase change material with a specific phase change temperature is less than or equal to 60 degrees Celsius.
5. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... The specific surface area of the heat insulation wrapping component is the outer surface of the heat pack that does not come into contact with the human body or clothing.
6. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... A thermally conductive component with a specific surface area is the surface area that comes into contact with the human body.
7. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... The thermal insulation wrapping component with a specific surface area is made of foam or organic material containing air bubbles, and its thermal conductivity is less than 0.2 W / (m*K).
8. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... A thermally conductive component with a specific surface area is made of metal, semiconductor, or crystal, and its thermal conductivity is greater than 1.0 W / (m*K).
9. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... The light-absorbing, heat-conducting, and electrical-conducting ohmic heating components and the phase change materials with specific phase change temperatures are both in planar or layered form, and the two are in surface contact with each other.
10. A hand warmer compatible with sunlight, heat energy, and electrical energy, capable of multiple recharges and energy storage, as described in claim 1, characterized in that... The light-absorbing, heat-conducting, and electrical-conducting ohmic heating component and the phase change material with a specific phase change temperature are flexible and foldable.