CN201814033U

CN201814033U - Lunch box heated by utilizing solar energy

Info

Publication number: CN201814033U
Application number: CN2009201259291U
Authority: CN
Inventors: 莫春平
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-12-16
Filing date: 2009-12-16
Publication date: 2011-05-04
Anticipated expiration: 2019-12-16

Abstract

The utility model discloses a lunch box heated by utilizing solar energy, which can take solar energy as a heat source. The lunch box heated by utilizing solar energy mainly comprises components such as a cover cap, a safety valve, a box cover, an anti-blocking device, a box body, a base and the like, wherein the box cover is rotationally connected with the box body through screw threads; the box cover and the box body are sealed with each other through a sealing ring; the anti-blocking device is in threaded connection with the bottom of the box cover; the safety valve is arranged on an exhaust pipe of the box cover by dead weight; the cover cap is rotationally connected with the box cover through screw threads; the base is bonded at the bottom of the box body; an outer glass pipe and an inner glass pipe in the box body are concentrically cylindrical; a space between the inner glass pipe and the outer glass pipe is vacuumized; a getter is arranged in a vacuum layer; and a selective adsorption coating is deposited on the outer surface of the inner glass pipe. The box body obtains heat energy from sunlight by using the heat collecting principle of a vacuum glass pipe, is a main body for generating and storing heat in the lunch box and is also a shell for accommodating food containers; and the containers are food accommodating containers which can be arranged in the inner glass pipe in the box body in a layered way and obtain the heat from the sunlight through the vacuum box body, so that the aim of heating foods is fulfilled.

Description

The solar energy heating lunch box

Affiliated technical field

The utility model relates to a kind of lunch box device of vacuum tube thermal-arrest, especially can utilize solar illuminating and the lunch box that can heat automatically.

Background technology

At present, the just simple food container of containing of known lunch box also just is designed to have the function of insulation at most, and incubation canteen temperature retention time on the market is not long, can only be incubated at short notice, and the time, long slightly food will turn cold, and made troubles to life.In China, owing to the custom of diet and the character of work, the crowd who carries the lunch box working also has a lot, and the lunch box that can directly heat automatically with sunshine bring great convenience to people.

Summary of the invention

Not long in order to overcome existing lunch box temperature retention time, the deficiency that can not heat automatically again, the utility model provides a kind of solar energy heating lunch box, and this lunch box can not only be incubated, and does not need other any methods, as long as just can heat lunch box under sunshine.

The technical scheme that its technical problem that solves the utility model adopts is: this lunch box is to utilize the design of glass tube with vacuum thermal-arrest principle, during use, sunshine at first passes its glass outer wall and vacuum interlayer, the heat that sunlight is brought into can be scribbled the inwall absorption of coating for selective absorption by outer surface, because heat can't be gone back and can only accumulate at internal layer by conduction, so the internal layer temperature can constantly raise, up to food being heated to satisfied degree.This lunch box is made cylindrical shape, mainly is made up of parts such as block, safety valve, lid, bridge breaker, box body, bases.The effect of block is that safety valve is fixed on certain scope of activities, is provided with aperture around the block, is convenient to the gases at high pressure in the logical lunch box, and four cap muscle are convenient to rotation and are used, and block is connected with screw thread rotation with lid.Safety valve is in order to guarantee lunch box safety, temperature in box body raises, pressure plays the pressure release effect when surpassing certain value, relief valve design is a dead-weight, circle centre position is provided with a stifled awl in the top of safety valve, when pressure increases safety valve jack-up is up moved, exhaust channel is opened and is got final product pressure release, the safety valve closed exhaust channel that falls when pressure is low, to guarantee that box body has suitable temperature and pressure, even four apertures that distribute are convenient to logical gases at high pressure around the safety valve, and safety valve places on the lid by deadweight.Lid is the hermetic unit of lunch box, and lid is connected with screw thread rotation with box body, and the end face contact position of lid and box body is provided with sealing ring, has good sealing function; Lid is provided with bridge breaker, is connected the bottom of lid with screw, is mainly used to prevent that the bulky grain thing from stopping up blast pipe and potential safety hazard takes place.Box body is the heat absorption working portion of lunch box, material can be selected Pyrex 3.3 or other transparent compound glass material manufacturings for use, box body is by outer glass pipe, inner glass tube, coating for selective absorption, the glass evacuated body that getter etc. are formed, interior outer glass pipe is concentric pipe, between interior outer glass pipe, be evacuated, the space of being pumped into vacuum forms a heat-insulation layer, outwards conduction is lost for the heat that pipe obtains in the assurance box body, on the outer surface of pipe, coating mainly absorbed from the solar energy of outer glass pipe and is stored in the inner glass tube in solar selective absorbing coating was deposited on; Getter is arranged at the bottom between interior outer glass pipe, and it is used to absorb the gas that vacuum heat collection pipe produces after evapotranspiring, and plays vacuum in the holding tube; Box body utilizes glass tube with vacuum thermal-arrest principle to obtain heat by solar irradiation, is to produce in the lunch box and the main body of store heat, and also be the housing that is installed in the food container.Base is bonded in the bottom of box body outer glass pipe, vacuumizes the exhaust nozzle of rear enclosed and whole box body bottom to avoid bump with protection; Container is a container of containing food, generally make by stainless steel or light-weight environment-friendly heat proof material, but layering be placed in the box body inner glass tube, obtain heat by vacuum box body solar irradiation, reach purpose to food heating.

The beneficial effects of the utility model are, not only can utilize natural sunshine that Sheng food is heated, and the insulation of can also delaying time is simple in structure safe and reliable.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified.

Fig. 1 is the front view and the vertical view of capping structure.

1. block thread grooves among the figure, 2. cap muscle, 3. block steam vent.

Fig. 2 is the front view and the vertical view of safety valve structure.

4. safety valve steam vents among the figure, 5. stifled awl.

Fig. 3 is front view, vertical view and the side view of bridge breaker structure.

6. air gaps among the figure, 7. main exhaust, 8. bridge breaker steam vent.

Fig. 4 is the front view and the vertical view of lid structure.

9. lid steam vents among the figure, 10. seal groove, 11. lid thread grooves.

Fig. 5 is the front view and the vertical view of box body structure.

12. outer glass pipes among the figure, 13. inner glass tubes, 14. vacuum layer, 15. coating for selective absorption, 16. getters.

Fig. 6 is the front view and the vertical view of container structure.

17. containers among the figure.

Fig. 7 is that the solar energy heating lunch box totally assembles schematic diagram.

18. blocks among the figure, 19. safety valves, 20. lids, 21. sealing rings, 22. bridge breakers, 23. box bodys, 17. containers, 24. bases.

The specific embodiment

In Fig. 1, the block thread groove (1) in the block (18) is threaded with lid (20), and with fixing block (18) position, cap muscle (2) is a convenient rotation block (18), and block steam vent (3) is the passage of discharging box body (23) pressure.

In Fig. 2, the safety valve steam vent (4) in the safety valve (19) is the passage of discharging box body (23) pressure, and the effect of stifled awl (5) is that lid steam vent (9) is carried out gravity is airtight.

In Fig. 3, the air gap (6) in the bridge breaker (22) is the passage of circulation gases at high pressure, and gases at high pressure lead to main exhaust (7) from bridge breaker steam vent (8) again, and the switching of process safety valve (19) is to regulate the pressure in the box body (23).

Lid steam vent (9) is the passage that gases at high pressure are flowed through in Fig. 4, and seal groove (10) is the filling position of sealing ring (21), and lid thread groove (11) is connected with the screw thread rotation of box body (23), reaches the effect of sealing with fixing lid (20).

Outer glass pipe in Fig. 5 (12) and inner glass tube (13) are the concentric circles tubular, space between outer glass pipe (12) and the inner glass tube (13) is evacuated to form vacuum layer (14), coating for selective absorption (15) is deposited on the outer surface of inner glass tube (13), and getter (16) is placed on the bottom of vacuum layer (14) between outer glass pipe (12) and the inner glass tube (13).

In Fig. 6, container (17) is a cylindrical shape, but layering is placed in the box body (23).

In Fig. 7, block (18) is rotatably connected with lid (20) with screw thread in the top of solar energy heating lunch box, is provided with safety valve (19) between block (18) and lid (20), and what safety valve (19) can be limited moves up and down, so that open with closed; Lid (20) is rotatably connected with box body (23) with screw thread; the sealing ring (21) of lid (20) lining and the port screwing hermetic of box body (23); bridge breaker (22) is to be threaded in the bottom of lid (20); box body (23) is a double-glass evacuated tube; it is the heat sink of this lunch box; container (17) can be placed in the box body (23) in layering, is bonded with base (24) in the bottom of box body (23), avoids bump with protection box body (23).

Claims

1. solar energy heating lunch box, be connected in sequence by block, safety valve, lid, box body, base, it is characterized in that: block is connected with screw thread rotation with lid, safety valve places on the lid by deadweight, lid is connected with screw thread rotation with box body, and the end face contact position of lid and box body is provided with sealing ring, and bridge breaker is threadedly connected to the bottom of lid, base is bonded in the bottom of box body outer glass pipe, but the container layering is placed in the box body inner glass tube.

2. solar energy heating lunch box according to claim 1, it is characterized in that: outer glass pipe in the box body and inner glass tube are the concentric circles tubular, space between inside and outside glass tube is evacuated, lays getter in vacuum layer, coating for selective absorption is deposited on the outer surface of inner glass tube.

3. solar energy heating lunch box according to claim 1 is characterized in that: circle centre position is provided with a stifled awl in the top of safety valve, and four apertures evenly distribute around the safety valve.