CN213414941U - Solar-powered radiation heat transfer insulation box applied to short-distance distribution of canteens - Google Patents

Abstract

A radiation heat transfer insulation box powered by solar energy and applied to short-distance distribution in a canteen belongs to the field of food storage and transportation. This patent uses the box that covers insulation material as the carrier, and the internal installation radiation water pipe of box utilizes radiation heat transfer technique to solve the student and returns the unable heat retaining problem in dormitory from dining room packing food. The main components comprise an outer heat insulation box body, an inner box body, a resistance wire, a radiation water pipe, a thermocouple piece and a solar panel. Before use, the resistance wire wound on the radiation water pipe is electrified by absorbing the heat of sunlight through the solar panel to heat the water pipe; when in use, the water heated in the radiation water pipe conducts radiation heat transfer on the food. The heat-insulating pot effectively solves the problem that the meal cannot be heat-insulated by fully utilizing a radiation heat exchange mode; and the solar energy is utilized to replace a storage battery, so that the environment is protected, the energy is saved, the weight is reduced, and the food safety is ensured.

Description

Solar-powered radiation heat transfer insulation box applied to short-distance distribution of canteens

Technical Field

The patent relates to a radiation heat transfer insulation can of being applied to dining room short distance delivery of solar energy power supply belongs to the food and stores the transportation field.

Background

Research and study show that in cold winter, college students often pack meals from school canteens to get back to dormitories due to busy academic business, but sometimes the way is far away, the currently-used plastic packing boxes cannot keep the temperature of the meals, food in the midway often becomes cold, and whether the students can eat hot meals becomes a big problem, so that the physical health of the students is damaged in the past.

At present, various types of heat preservation lunch boxes are available on the market, for example, patent cn201710434973.x proposes a heat preservation box which comprises a plurality of laminated plates and a bottom plate, wherein the laminated plates and the bottom plate with lower ends opened are made of heat preservation and insulation materials, and heat preservation of a plurality of dishes is realized simultaneously through the laminated plates which are laminated layer by layer. Although the life of people is facilitated, the temperature can not be kept constant and can not be kept continuously only by simply utilizing heat-insulating materials. Patent CN201821558729.0 has proposed an utilize cold-storage body to carry out heat retaining utility model insulation can, and this insulation can includes insulation can body and shutoff piece, and insulation can body includes box and case lid, and when changing the cold-storage body, the shutoff piece separates goods and ambient air, can greatly reduce contact and heat exchange between the two, and then also can change the cold-storage body at normal atmospheric temperature, but the cold-storage body of just needing in time to be changed equally for the use of this insulation can is comparatively inconvenient. Patent CN201811398026.0 has proposed a heat preservation hamper, including hamper body and lid, keeps warm food through the thermal-insulated mode in vacuum on the one hand, and on the other hand adopts the mode of electrical heating to heat the heat preservation to the food in the hamper, nevertheless contains the lithium cell in this patent product, if with the liquid contact in the food, can produce the danger of electric leakage electric shock.

Thermal radiation is one of the basic ways of heat transfer, and all objects in nature constantly emit radiation energy, and constantly absorb radiation energy from other objects and convert the radiation energy into heat energy. Heat transfer between objects by thermal radiation becomes radiative heat transfer. Compared with convection heat transfer, the radiation heat transfer has low requirement on a medium and high heat transfer efficiency. This patent application radiation heat transfer technique combines with current thermal-insulated insulation material, consumes a small amount of electric energy, through the radiant water pipe of the internal installation of heating cabinet, through the radiation heat dissipation characteristic of water, reaches for food heat retaining effect. The storage battery is not integrated, and the damage of electric shock and electric leakage is avoided; the solar panel is arranged on the box cover, and the radiation water pipe can be heated by charging with sunlight under the allowable condition, so that the continuous constant temperature is realized, and the service life is long after charging; water is used as a medium, so that the food is nontoxic and harmless, and cross contamination is avoided; meanwhile, the solar energy is applied to utilize natural energy to the maximum extent to save electric energy, so that the solar energy-saving solar energy water heater is environment-friendly and energy-saving. The problem that the students can not keep warm from the dining room packaged food to the dormitory can be solved, the students can eat hot meal, and the life quality of the students is powerfully guaranteed.

Disclosure of Invention

The purpose of this patent is to provide a radiation heat transfer insulation can and working method that is applied to dining room short distance distribution of solar energy power supply.

The incubator consists of a carrying handle 1, a box cover 2, a right first radiation water pipe 3, a right second radiation water pipe 4, a right third radiation water pipe 5, a bottom first radiation water pipe 6, a bottom second radiation water pipe 7, a bottom third radiation water pipe 8, a bottom fourth radiation water pipe 9, a bottom fifth radiation water pipe 10, a bottom sixth radiation water pipe 11, a left first radiation water pipe 12, a left second radiation water pipe 13, a left third radiation water pipe 14, an outer heat insulation box body 15, a lead 16, an inner box body 17, a right first resistance wire 18, a right second resistance wire 19, a right third resistance wire 20, a bottom first resistance wire 21, a bottom second resistance wire 22, a bottom third resistance wire 23, a bottom fourth resistance wire 24, a bottom fifth resistance wire 25, a bottom sixth resistance wire 26, a left first resistance wire 27, a left second resistance wire 28, a left third resistance wire 29, The thermocouple comprises a left thermocouple piece 30, a right thermocouple piece 31, an indicator lamp 32, a battery 33, box body heat insulation cotton 34, box cover heat insulation cotton 35, a hard plastic shell 36 and a solar panel 37;

the outer layer heat insulation box body 15 is a hollow cuboid without a cover, and the inner layer box body 17 is a hollow cuboid without a cover with a smaller size and a geometric similarity with the outer layer heat insulation box body 15; the box cover 2 is contacted with the outer layer heat insulation box body 15 and is assembled in a sealing way; the right first radiation water pipe 3, the right second radiation water pipe 4, the right third radiation water pipe 5, the bottom first radiation water pipe 6, the bottom second radiation water pipe 7, the bottom third radiation water pipe 8, the bottom fourth radiation water pipe 9, the bottom fifth radiation water pipe 10, the bottom sixth radiation water pipe 11, the left first radiation water pipe 12, the left second radiation water pipe 13 and the left third radiation water pipe 14 are hollow cylinders with the same shape and size; the box body heat insulation cotton 34 and the box cover heat insulation cotton 35 are made of the same material;

the device connection mode is as follows: the inner box body 17 is arranged in the outer heat insulation box body 15, the openings of the two box bodies are flush, the vertical shafts are overlapped, and the upper parts of the two box bodies are connected by the same material; box body heat preservation cotton 34 is uniformly filled in an interlayer formed by the outer layer heat insulation box body 15 and the inner layer box body 17, and box cover heat preservation cotton 35 is uniformly filled in the box cover 2; the box cover 2 with the upper top part provided with the carrying handle 1 is positioned above the outer layer heat insulation box body 15 and is connected with the outer layer heat insulation box body 15 by a hinge; the hard plastic shell 36 is wrapped outside the outer heat insulation box body 15; indicator lights 32 are mounted on the hard plastic outer shell 36 at positions to the right of the upper surface; the right first radiation water pipe 3, the right second radiation water pipe 4 and the right third radiation water pipe 5 are uniformly and horizontally buried on a vertical axis of the interlayer of the right heat-preservation cotton 34 from top to bottom; a first bottom radiation water pipe 6, a second bottom radiation water pipe 7, a third bottom radiation water pipe 8, a fourth bottom radiation water pipe 9, a fifth bottom radiation water pipe 10 and a sixth bottom radiation water pipe 11 are uniformly and horizontally buried in the interlayer of the bottom heat-preservation cotton 34 from right to left; the left first radiation water pipe 12, the left second radiation water pipe 13 and the left third radiation water pipe 14 are uniformly and horizontally buried on a vertical axis of the interlayer of the left heat-preservation cotton 34 from bottom to top; a right first resistance wire 18, a right second resistance wire 19, a right third resistance wire 20, a bottom first resistance wire 21, a bottom second resistance wire 22, a bottom third resistance wire 23, a bottom fourth resistance wire 24, a bottom fifth resistance wire 25, a bottom sixth resistance wire 26, a left first resistance wire 27, a left second resistance wire 28 and a left third resistance wire 29 are respectively wound on the right first radiation water pipe 3, the right second radiation water pipe 4, the right third radiation water pipe 5, the bottom first radiation water pipe 6, the bottom second radiation water pipe 7, the bottom third radiation water pipe 8, the bottom fourth radiation water pipe 9, the bottom fifth radiation water pipe 10, the bottom sixth radiation water pipe 11, the left first radiation water pipe 12, the left second radiation water pipe 13 and the left third radiation water pipe 14 in a spiral manner in a one-to-one correspondence manner; the battery 33 is arranged at the center of the interlayer of the heat insulation cotton 34 of the box cover 2; the left thermocouple piece 30 and the right thermocouple piece 31 are symmetrically distributed on the left side and the right side by taking a battery 33 as a center, the left thermocouple piece 30 and the right thermocouple piece 31 are connected with an indicator lamp 32 and the battery 33 through leads, and the battery 33 is only responsible for providing electricity for the indicator lamp 32; the solar panel 37 is packaged at the top of the box cover 2, and the solar panel 37, the right first resistance wire 18, the right second resistance wire 19, the right third resistance wire 20, the bottom first resistance wire 21, the bottom second resistance wire 22, the bottom third resistance wire 23, the bottom fourth resistance wire 24, the bottom fifth resistance wire 25, the bottom sixth resistance wire 26, the left first resistance wire 27, the left second resistance wire 28 and the left third resistance wire 29 are connected together by the conducting wires 16 to form a circuit loop.

The working method of the incubator comprises the following steps:

when sunlight irradiates, sunlight irradiates on a semiconductor p-n junction of a solar panel 37 to form a new hole-electron pair, under the action of a p-n junction electric field, a hole flows from a p region to an n region, electrons flow from the n region to the p region, current is formed after a circuit is switched on, the current flows through a lead 16 to electrically heat a right first resistance wire 18, a right second resistance wire 19, a right third resistance wire 20, a bottom first resistance wire 21, a bottom second resistance wire 22, a bottom third resistance wire 23, a bottom fourth resistance wire 24, a bottom fifth resistance wire 25, a bottom sixth resistance wire 26, a left first resistance wire 27, a left second resistance wire 28 and a left third resistance wire 29, and the joule effect of the current flowing through the conductor is utilized to generate heat energy, so that the right first resistance wire 18, the right second resistance wire 19, the right third resistance wire 20, the left first resistance wire 27, the left second resistance wire 28 and, The water in the bottom first resistance wire 21, the bottom second resistance wire 22, the bottom third resistance wire 23, the bottom fourth resistance wire 24, the bottom fifth resistance wire 25, the bottom sixth resistance wire 26, the left first resistance wire 27, the left second resistance wire 28 and the left third resistance wire 29 is firstly heated, and then the generated heat indirectly heats the water in the right first radiation water pipe 3, the right second radiation water pipe 4, the right third radiation water pipe 5, the bottom first radiation water pipe 6, the bottom second radiation water pipe 7, the bottom third radiation water pipe 8, the bottom fourth radiation water pipe 9, the bottom fifth radiation water pipe 10, the bottom sixth radiation water pipe 11, the left first radiation water pipe 12, the left second radiation water pipe 13 and the left third radiation water pipe 14 in the forms of thermal conduction and thermal radiation;

after heating, the water absorbs heat and radiates infrared rays through the inner layer box body 17 to heat food in a radiation mode, and meanwhile, a small part of residual heat energy is transferred through the inner layer box body 17 in a heat conduction mode; after the water temperature drops, the left thermocouple piece 30 and the right thermocouple piece 31 detect the temperature change of the water, when the water temperature is lower than 30 ℃, the indicator lamp 21 is lightened to remind of charging, and a user can use the water repeatedly through charging.

The top of the thermal insulation box is connected with a solar panel 37.

The left thermocouple piece 30 and the right thermocouple piece 31 are used for detecting water temperature change, and when the temperature is lower than 30 ℃, the indicator lamp 32 is lightened to give out a prompt.

The medium in the right first radiation water pipe 3, the right second radiation water pipe 4, the right third radiation water pipe 5, the bottom first radiation water pipe 6, the bottom second radiation water pipe 7, the bottom third radiation water pipe 8, the bottom fourth radiation water pipe 9, the bottom fifth radiation water pipe 10, the bottom sixth radiation water pipe 11, the left first radiation water pipe 12, the left second radiation water pipe 13 and the left third radiation water pipe 14 is water.

The first radiation water pipe 3 in right side, the second radiation water pipe 4 in right side, the third radiation water pipe 5 in right side, the first radiation water pipe 6 in bottom, the second radiation water pipe 7 in bottom, the third radiation water pipe 8 in bottom, the fourth radiation water pipe 9 in bottom, the fifth radiation water pipe 10 in bottom, the sixth radiation water pipe 11 in bottom, the first radiation water pipe 12 in left side, the second radiation water pipe 13 in left side, the arrangement mode that the third radiation water pipe 14 in left side adopted is U type level surrounding type, the radiation water pipe is buried evenly and horizontally in the intermediate layer left and right sides and the bottom of inlayer box 17 and outer thermal-insulated box 15 promptly.

The box body heat preservation cotton 34 is uniformly filled in the interlayer of the inner layer box body 17 and the outer layer heat insulation box body 15; the box cover heat preservation cotton 35 is evenly filled in the box cover 2.

The battery 33 is a No. 7 battery which is light and small in size and is only used for supplying power to the indicator lamp 32.

Drawings

Fig. 1 is a front view of the patent.

Number designations in figure 1: 1. the portable electric heating wire comprises a portable handle, 2. a box cover, 3. a right first radiation water pipe, 4. a right second radiation water pipe, 5. a right third radiation water pipe, 6. a bottom first radiation water pipe, 7. a bottom second radiation water pipe, 8. a bottom third radiation water pipe, 9. a bottom fourth radiation water pipe, 10. a bottom fifth radiation water pipe, 11. a bottom sixth radiation water pipe, 12. a left first radiation water pipe, 13. a left second radiation water pipe, 14. a left third radiation water pipe, 15. an outer heat insulation box body, 16. a conducting wire, 17. an inner box body, 18. a right first resistance wire, 19. a right second resistance wire, 20. a right third resistance wire, 21. a bottom first resistance wire, 22. a bottom second resistance wire, 23. a bottom third resistance wire, 24. a bottom fourth resistance wire, 25. a bottom fifth resistance wire, 26. a bottom sixth resistance wire, 27. The solar energy collector comprises a left first resistance wire, 28, a left second resistance wire, 29, a left third resistance wire, 30, a left thermocouple piece, 31, a right thermocouple piece, 32, an indicator light, 33, a battery, 34, a box filling layer, 35, an upper cover filling layer, 36, a hard plastic shell and 37, and a solar panel.

Fig. 2 is a side view of the patent.

Number designations in figure 2: 1. the solar water heater comprises a carrying handle, 2. a box cover, 11. a bottom sixth radiation water pipe, 12. a left first radiation water pipe, 13. a left second radiation water pipe, 14. a left third radiation water pipe, 15. an outer heat insulation box body, 16. a lead, 17. an inner box body, 26. a bottom sixth resistance wire, 27. a left first resistance wire, 28. a left second resistance wire, 29. a left third resistance wire, 30. a left thermocouple piece, 32. an indicator light, 33. a battery, 34. a box body filling layer, 35. an upper cover filling layer, 36. a hard plastic shell, 37. a solar panel.

Fig. 3 is a top view of the patent.

Number designations in figure 3: 1. the solar water heater comprises a carrying handle, 2. a box cover, 3. a right side first radiation water pipe, 6. a bottom first radiation water pipe, 7. a bottom second radiation water pipe, 8. a bottom third radiation water pipe, 9. a bottom fourth radiation water pipe, 10. a bottom fifth radiation water pipe, 11. a bottom sixth radiation water pipe, 14. a left side third radiation water pipe, 15. an outer heat insulation box body, 17. an inner layer box body, 18. a right side first resistance wire, 21. a bottom first resistance wire, 22. a bottom second resistance wire, 23. a bottom third resistance wire, 24. a bottom fourth resistance wire, 25. a bottom fifth resistance wire, 29. a left side third resistance wire, 30. a left side thermocouple sheet, 31. a right side thermocouple sheet, 32. an indicator light, 33. a battery, 34. a box body filling layer, 35. an upper cover filling layer, 36. a hard plastic shell and 37. a solar panel.

Detailed Description

The novel electric water heater comprises a portable handle 1, a box cover 2, a right first radiation water pipe 3, a right second radiation water pipe 4, a right third radiation water pipe 5, a bottom first radiation water pipe 6, a bottom second radiation water pipe 7, a bottom third radiation water pipe 8, a bottom fourth radiation water pipe 9, a bottom fifth radiation water pipe 10, a bottom sixth radiation water pipe 11, a left first radiation water pipe 12, a left second radiation water pipe 13, a left third radiation water pipe 14, an outer heat insulation box body 15, a lead 16, an inner box body 17, a right first resistance wire 18, a right second resistance wire 19, a right third resistance wire 20, a bottom first resistance wire 21, a bottom second resistance wire 22, a bottom third resistance wire 23, a bottom fourth resistance wire 24, a bottom fifth resistance wire 25, a bottom sixth resistance wire 26, a left first resistance wire 27, a left second resistance wire 28, a left third resistance wire 29, The thermocouple comprises a left thermocouple piece 30, a right thermocouple piece 31, an indicator lamp 32, a battery 33, a box filling layer 34, an upper cover filling layer 35, a hard plastic shell 36 and a solar panel 37;

twelve radiant water pipes are buried on the side wall and the bottom of the box body, wherein a right first radiant water pipe 3, a right second radiant water pipe 4 and a right third radiant water pipe 5 are positioned on the right side wall between the outer heat insulation box body 15 and the inner box body 17, a left first radiant water pipe 12, a left second radiant water pipe 13 and a left third radiant water pipe 14 are positioned on the left side wall between the outer heat insulation box body 15 and the inner box body 17, and a bottom first radiant water pipe 6, a bottom second radiant water pipe 7, a bottom third radiant water pipe 8, a bottom fourth radiant water pipe 9, a bottom fifth radiant water pipe 10 and a bottom sixth radiant water pipe 11 are positioned at the bottom of the box body; each radiant water pipe is wound with a resistance wire with the same heating capacity, and the radiant water pipe and the resistance wire are main elements for heating and insulating food. The left thermocouple piece 30, the right thermocouple piece 31, the indicator light 32 and the battery 33 are arranged in the box cover 2, the solar panel 37 is paved on the box cover 2, the left thermocouple piece 30, the right thermocouple piece 31, the indicator light 32 and the battery 33 are connected through leads, the battery 33 is only responsible for providing electricity for the indicator light 32, the elements form a detection reminding circuit in the box cover 2, the temperature change of the radiation water pipe can be detected, and when the water temperature is lower than 30 ℃, a user is reminded to charge in time.

Outer thermal-insulated box 15 and case lid 2 adopt thermal insulation material to make, inlayer box 17 is then made by the material of the heat of easily conducting, be equipped with box filling layer 34 around the radiant tube, there is upper cover filling layer 35 in the case lid 2 equally, the filling layer comprises the heat preservation cotton, the main objective is to avoid the heat energy that the radiant tube was preserved to external loss, lock heat energy inside the box, with this persistence and the validity of guaranteeing system work, be equipped with the fixed box structure of hard plastic shell 36 help in the outside of outer thermal-insulated box 15, with this guarantee that the insulation can not warp easily, increase its life.

Before use, the solar energy is converted into electric energy through the conducting wire 16 and the solar panel 37, and the resistance wire wound on the radiation water pipe is charged and heated. During charging, heat energy generated by joule effect of current flowing through a conductor is utilized to electrically heat a right first resistance wire 18, a right second resistance wire 19, a right third resistance wire 20, a bottom first resistance wire 21, a bottom second resistance wire 22, a bottom third resistance wire 23, a bottom fourth resistance wire 24, a bottom fifth resistance wire 25, a bottom sixth resistance wire 26, a left first resistance wire 27, a left second resistance wire 28 and a left third resistance wire 29, the transmitted electric energy is directly converted into heat energy of the resistance wires, the heat energy is transmitted into the right first radiation water pipe 3, the right second radiation water pipe 4, the right third radiation water pipe 5, the bottom first radiation water pipe 6, the bottom second radiation water pipe 7, the bottom third radiation water pipe 8, the bottom fourth radiation water pipe 9, the bottom fifth radiation water pipe 10, the bottom sixth radiation water pipe 11, the left first radiation water pipe 12, the bottom first radiation water pipe 7, the bottom second radiation water pipe 7, the bottom third, The water sealed in the left second radiation water pipe 13 and the left third radiation water pipe 14 (the specific heat capacity of the heating medium water is large, so that a large amount of heat energy can be accommodated.) absorbs the heat energy, then the water penetrates through the inner-layer box body 17 to perform radiation heating on the food, and meanwhile, a small part of residual heat energy is transmitted through the inner-layer box body in a heat conduction mode. When the temperature of water is reduced and the left thermocouple piece 30 and the right thermocouple piece 31 detect the temperature change of water, the current of the detection circuit is changed, and the indicator lamp 32 is lightened to remind charging. The user can realize the reuse of the incubator by placing the solar panel 37 under the sunlight to generate current to electrically heat the first right resistance wire 18, the second right resistance wire 19, the third right resistance wire 20, the first bottom resistance wire 21, the second bottom resistance wire 22, the third bottom resistance wire 23, the fourth bottom resistance wire 24, the fifth bottom resistance wire 25, the sixth bottom resistance wire 26, the first left resistance wire 27, the second left resistance wire 28 and the third left resistance wire 29.

Compared with similar heat preservation products on the market, the heat preservation device gives up a heat preservation mode of heating by energy provided by a built-in battery, introduces a radiation capillary heat exchange technology in an air conditioner, and uses water as a main radiation heat transfer medium to heat and preserve heat of food; water in the radiant water pipe is heated in a solar panel photoelectric conversion mode, so that the system is more energy-saving and environment-friendly while the working endurance of the system is ensured. Meanwhile, the box body is not electrified during actual work, and water is a non-toxic and harmless medium, so that the safety of the system is ensured. The resistance wire used as the heating element has low cost, simple structure and convenient installation and maintenance.

Claims (6)

1. The utility model provides a radiation heat transfer insulation can of being applied to dining room short distance distribution of solar energy power supply which characterized in that:

the novel radiation water-cooling water tank is characterized by comprising a portable handle (1), a tank cover (2), a right first radiation water pipe (3), a right second radiation water pipe (4), a right third radiation water pipe (5), a bottom first radiation water pipe (6), a bottom second radiation water pipe (7), a bottom third radiation water pipe (8), a bottom fourth radiation water pipe (9), a bottom fifth radiation water pipe (10), a bottom sixth radiation water pipe (11), a left first radiation water pipe (12), a left second radiation water pipe (13), a left third radiation water pipe (14), an outer heat insulation tank body (15), a lead (16), an inner tank body (17), a right first resistance wire (18), a right second resistance wire (19), a right third resistance wire (20), a bottom first resistance wire (21), a bottom second resistance wire (22), a bottom third resistance wire (23), a bottom fourth resistance wire (24), The solar thermal insulation box comprises a bottom fifth resistance wire (25), a bottom sixth resistance wire (26), a left first resistance wire (27), a left second resistance wire (28), a left third resistance wire (29), a left thermocouple piece (30), a right thermocouple piece (31), an indicator light (32), a battery (33), box body thermal insulation cotton (34), box cover thermal insulation cotton (35), a hard plastic shell (36) and a solar panel (37);

the outer layer heat insulation box body (15) is a hollow cuboid without a cover, and the inner layer box body (17) is a hollow cuboid without a cover with a smaller size and a geometric similarity with the outer layer heat insulation box body (15); the box cover (2) is contacted with the outer layer heat insulation box body (15) and is assembled in a sealing way; the right first radiation water pipe (3), the right second radiation water pipe (4), the right third radiation water pipe (5), the bottom first radiation water pipe (6), the bottom second radiation water pipe (7), the bottom third radiation water pipe (8), the bottom fourth radiation water pipe (9), the bottom fifth radiation water pipe (10), the bottom sixth radiation water pipe (11), the left first radiation water pipe (12), the left second radiation water pipe (13) and the left third radiation water pipe (14) are hollow cylinders with the same shape and size; the box body heat insulation cotton (34) and the box cover heat insulation cotton (35) are made of the same material;

the device connection mode is as follows: the inner box body (17) is arranged in the outer heat insulation box body (15), the openings of the two box bodies are flush, the vertical shafts are overlapped, and the upper parts of the two box bodies are connected by the same material; box body heat preservation cotton (34) is uniformly filled in an interlayer formed by the outer layer heat insulation box body (15) and the inner layer box body (17), and box cover heat preservation cotton (35) is uniformly filled in the box cover (2); the box cover (2) provided with the handle (1) at the upper top is positioned above the outer heat insulation box body (15) and is connected with the outer heat insulation box body (15) by a hinge; the hard plastic shell (36) is wrapped outside the outer layer heat insulation box body (15); the indicator lamp (32) is arranged at the position which is right on the upper surface of the hard plastic shell (36); the right first radiation water pipe (3), the right second radiation water pipe (4) and the right third radiation water pipe (5) are uniformly and horizontally buried on a vertical axis of an interlayer of the right heat-preservation cotton (34) from top to bottom; a first bottom radiation water pipe (6), a second bottom radiation water pipe (7), a third bottom radiation water pipe (8), a fourth bottom radiation water pipe (9), a fifth bottom radiation water pipe (10) and a sixth bottom radiation water pipe (11) are uniformly and horizontally buried at the interlayer of the bottom heat-preservation cotton (34) from right to left; the left first radiation water pipe (12), the left second radiation water pipe (13) and the left third radiation water pipe (14) are uniformly and horizontally buried on a vertical axis of an interlayer of the left heat-preservation cotton (34) from bottom to top; the wire winding device comprises a right first resistance wire (18), a right second resistance wire (19), a right third resistance wire (20), a bottom first resistance wire (21), a bottom second resistance wire (22), a bottom third resistance wire (23), a bottom fourth resistance wire (24), a bottom fifth resistance wire (25), a bottom sixth resistance wire (26), a left first resistance wire (27), a left second resistance wire (28), and a left third resistance wire (29) which are in one-to-one correspondence and are respectively wound on a right first radiation water pipe (3), a right second radiation water pipe (4), a right third radiation water pipe (5), a bottom first radiation water pipe (6), a bottom second radiation water pipe (7), a bottom third radiation water pipe (8), a bottom fourth radiation water pipe (9), a bottom fifth radiation water pipe (10), a bottom sixth radiation water pipe (11), a left first radiation water pipe (12), The left second radiation water pipe (13) and the left third radiation water pipe (14); the battery (33) is arranged at the center of the interlayer of the heat insulation cotton (34) of the box cover (2); the left thermocouple piece (30) and the right thermocouple piece (31) are symmetrically distributed on the left side and the right side by taking a battery (33) as a center, the left thermocouple piece (30) and the right thermocouple piece (31) are connected with an indicator light (32) and the battery (33) through leads, and the battery (33) is only responsible for providing electricity for the indicator light (32); solar panel (37) encapsulates at case lid (2) top, by wire (16) with solar panel (37) and right side first resistance wire (18), right side second resistance wire (19), right side third resistance wire (20), bottom first resistance wire (21), bottom second resistance wire (22), bottom third resistance wire (23), bottom fourth resistance wire (24), bottom fifth resistance wire (25), bottom sixth resistance wire (26), left side first resistance wire (27), left side second resistance wire (28), left side third resistance wire (29) link together and form circuit loop.

2. The solar powered radiant heat transfer and insulation box for canteen short distance distribution according to claim 1, wherein: the top of the heat preservation box is connected with a solar panel (37).

3. The solar powered radiant heat transfer and insulation box for canteen short distance distribution according to claim 1, wherein: the medium in the right first radiation water pipe (3), the right second radiation water pipe (4), the right third radiation water pipe (5), the bottom first radiation water pipe (6), the bottom second radiation water pipe (7), the bottom third radiation water pipe (8), the bottom fourth radiation water pipe (9), the bottom fifth radiation water pipe (10), the bottom sixth radiation water pipe (11), the left first radiation water pipe (12), the left second radiation water pipe (13) and the left third radiation water pipe (14) is water.

4. The solar powered radiant heat transfer and insulation box for canteen short distance distribution according to claim 1, wherein: the radiation water pipe is buried uniformly and horizontally in the left side and the right side of the interlayer and the bottom of the inner layer box body (17) and the outer layer heat insulation box body (15) respectively.

5. The solar powered radiant heat transfer and insulation box for canteen short distance distribution according to claim 1, wherein: the box body heat preservation cotton (34) is uniformly filled in the interlayer of the inner box body (17) and the outer heat insulation box body (15); the box cover heat preservation cotton (35) is uniformly filled in the box cover (2).

6. The solar powered radiant heat transfer and insulation box for canteen short distance distribution according to claim 1, wherein: the battery (33) adopts a No. 7 battery with light weight and small volume.

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