Along with the continuous improvement of people's living condition, people more and more pay attention to healthy diet, turn cool gradually at weather, and day and night temperature is large, night cold air weight.Due to a lot of people because the food causing family to stay evening of going home is cool, or like food limit, limit to chat when a lot of people has dinner, make the meal time long food that makes cool, edible cold dish can make people injure one's stomach the impairment of the spleen.If repeatedly heated, not only taste bad but also nutrition leak, be unfavorable for health.
At present, food heat-preservation plate common on the market, is made up of the parts such as toughened glass panel, metal edge frame and base plate, heat generating component, handle, foot pad, switch, power line, temperature controller.Only need by power line socket power during use, switch is allocated to open position, within tens seconds, namely rear board starts heating, significantly can feel that temperature is raising very soon, the effect of food insulation just can be reached after two or three minutes, do not closed by switch before dining terminates, food heat-preservation plate can be caused like this can not to continue as food provides heat needed for insulation.But, because power line has certain length, separately connect if removed from the length that terminal plate also needs power line to design more than 2 meters, like this, also need plug power line again in use or mobile food heat-preservation plate, very inconvenience, in addition, when Meal at the Table, the child especially in family likes running, power line of easily stumbling in running causes food heat-preservation plate and is placed on dish food heat-preservation plate filling vegetable soup dropping, and therefore socket power has certain risk.
Utility model content
Technical problem to be solved in the utility model is the food thermal insulator providing a kind of wireless power, be intended to solve in prior art, existing food heat-preservation plate is connected with power supply by power line, exist use inconvenience and easily because of people be stumble after drop the defect causing damaging.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of food thermal insulator of wireless power, and it comprises wireless power supply for sending electric power and electric heat-emitting board; Described wireless power supply comprises a transmitting coil; Described electric heat-emitting board comprises an open-topped housing and the panel for placing disc, described panel cover is located at the opening part of described housing, be provided with heater element in described housing, for receiving the electromagnetic receiving coil that sent by described transmitting coil and this electromagnetic wave being converted to electric current with first change-over panel of powering to described heater element, the electrical connection of described receiving coil, described first change-over panel and described heater element order.
Further, described housing comprises center and is connected to the base plate of this center bottom surface, and the bottom edge of described panel is supported on the sidewall top end face of described center, and the edge of described panel stretches out and exceeds the outer surface of described center.
Further, the outer wall of described center is formed with multiple radiating fin for the heat of described enclosure interior being exported to this hull outside.
Further, the side of described housing is provided with a plugs and sockets be electrically connected with described first change-over panel, and described housing is removably connected with an electric power connection line in this plugs and sockets position.
Further, described wireless power supply also comprises the controller for connecting external power source, and controller comprises controller face-piece, the controller drain pan be connected with described controller face-piece and electric current converted to the second change-over panel that electromagnetic wave sends for described transmitting coil.
Further, the area of described transmitting coil is greater than the projected area of described electric heat-emitting board on horizontal plane.
Further, described panel is toughened glass panel, microcrystal face plate or stainless steel faceplate.
Further, described heater element is metal electric heated filament, and described metal electric heated filament is arranged in described housing in roundabout shape of wriggling.
Further, be provided with the Temperature sampler that can select to open or close described heater element within the scope of predetermined temperature value in described housing, described Temperature sampler is electrically connected with described first change-over panel.
Further, described predetermined temperature value scope is between 60 °-90 °.
Be compared with the prior art, the food thermal insulator of the wireless power that the utility model provides, adopt the wireless power supply and the electric heat-emitting board that are built-in with transmitting coil, electromagnetic wave is converted to power supply by the receiving coil of electric heat-emitting board and the first change-over panel to power to heater element and to make it generate heat, when being energized, electric heat-emitting board can generate heat and carry out heating and thermal insulation with the disc filling food to being placed on it, like this, need not power supply inserting line in addition, it is very convenient to carry and store, and avoid because artificial is stumbled and break, therefore adaptability and security are obtained for lifting.
Detailed description of the invention
In order to make technical problem to be solved in the utility model, technical scheme and beneficial effect clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with concrete accompanying drawing, realization of the present utility model is described in detail.
As shown in Figure 1 to Figure 3, be a preferred embodiment that the utility model provides.
The food thermal insulator of the wireless power that the present embodiment provides, it comprises wireless power supply 100 for sending electric power and electric heat-emitting board 1.A transmitting coil 101 is provided with in wireless power supply 100.Electric heat-emitting board 1 comprises an open-topped housing 2 and panel 3, panel 3 lid is located at the opening part of housing 2, panel 3 can put the disc filling food and heating and thermal insulation is carried out to this disc, be provided with heater element 4 in housing 2, for receiving the electromagnetic receiving coil 5 that sent by transmitting coil 101 and this electromagnetic wave being converted to electric current with first change-over panel 6 of powering to heater element 4, receiving coil 5, first change-over panel 6 and the electrical connection of heater element 4 order.
The food thermal insulator of above-mentioned wireless power, adopt the wireless power supply 100 and the electric heat-emitting board 1 that are built-in with transmitting coil 101, electromagnetic wave is converted to power supply by the receiving coil 5 of electric heat-emitting board 1 and the first change-over panel 6 to power to heater element 4 and to make it generate heat, when being energized, electric heat-emitting board 1 can generate heat and carry out heating and thermal insulation with the disc filling food to being placed on it, like this, need not power supply inserting line in addition, it is very convenient to carry and store, and avoid because artificial is stumbled and break, therefore adaptability and security are obtained for lifting.
For sake of convenience, hereinafter alleged " left side " " right side " " on " D score to consistent, but do not play restriction effect to structure of the present utility model with left and right, the upper and lower of accompanying drawing itself.
In the present embodiment, see Fig. 1 and Fig. 2, the food thermal insulator of wireless power comprises wireless power supply 100 and electric heat-emitting board 1.Wireless power supply 100, quantity can be multiple, below the table top that can be arranged on dining table or tea table, also can be cabinet in kitchen table top below.
Wireless power supply 100, as generating main body, this wireless power supply 100 connects civil power.As can be seen from Figure 2, wireless power supply 100 comprises transmitting coil 101 and the control box 102 of electric connection, and control box 102 is for being connected with outside mains supply.Control box 102 is mutually enclosed by control box face-piece 103 and control box drain pan 104 and is formed, and is provided with one for foreign current being converted to the second change-over panel 105 that electromagnetic wave sends for transmitting coil 101 between this control box face-piece 103 and control box drain pan 104.It should be noted that, this second change-over panel 6 can be all circuit boards in prior art with electromagnetic conversion function, can normally work for making electric heat-emitting board 1, because electric heat-emitting board 1 is for needing the equipment using large voltage, large power supply, therefore the second change-over panel 6 to be debugged and being respectively 220V and 220W with the input voltage that can realize electric heat-emitting board 1, power.
For the ease of powering to it after electric heat-emitting board 1 is placed, the area of transmitting coil 101 at least covers electric heat-emitting board 1 projected area in the horizontal plane, that is when electric heat-emitting board 1 keeps flat, its shade in the horizontal plane falls in the region that transmitting coil 101 wraps up, as can be seen from Fig. 1 and Fig. 2, the area of transmitting coil 101 is much larger than electric heat-emitting board 1, like this, the effective coverage of electric heat-emitting board 1 and wireless power supply 100 conducting can be increased, when above electric heat-emitting board 1 is placed on transmitting coil 101 and fall into this transmitting coil 101 parcel region in, then electric heat-emitting board 1 conducting, need not align, more convenient to use.
Electric heat-emitting board 1, comprises housing 2 and panel 3.See Fig. 1 to Fig. 3, in housing 2, be provided with receiving coil 5, first change-over panel 6 and the heater element 4 of order electrical connection.Receiving coil 5, the electromagnetic wave that the transmitting coil 101 that can receive wireless power supply 100 sends, receiving coil 5 can utilize the appropriate location be adhesive in bottom housing 2, also can make the wire casing suitable with responding to electricity taking coil bottom housing 2, and above-mentioned induction electricity taking coil is inlayed within it.First change-over panel 6, is arranged on above receiving coil 5, and can convert this electromagnetic wave to electric current and power heater element 4 is generated heat to heater element 4, this first change-over panel 6 can be all circuit boards in prior art with magnetoelectricity translation function.
Heater element 4, metal electric heated filament, metal electric heating membrane, pvc Electric radiant Heating Film, ceramic heating plate, electrothermal tube can be adopted, in the present embodiment, preferred employing metal electric heated filament is as the heater element 4 of electric heat-emitting board 1, because the heating of metal electric heated filament is rapid, within 3 minutes, can preset temperature be reached, and not need preheating, therefore can play comparatively ideal heat insulation effect in the winter of cold.See Fig. 2, heater element 4 is arranged on above the first change-over panel 6, and in wriggling, roundabout shape is arranged in housing 2, and this spline structure is in housing 2, and heating area is comparatively large, and heat generation rate is higher.
Panel 3, square in shape (can certainly change according to housing 2 opening shape, such as circular or oval), adopt toughened glass panel, microcrystal face plate or stainless steel faceplate, preferred toughened glass panel, cost is lower, and processing is simple.
Housing 2, has opening upward, for installing receiving coil 5, first change-over panel 6, heater element 4, and support panel 3.Housing 2 adopts metal material to make, and is roughly square, and square configuration is adapted at square dining table and circular dining table uses (certainly on circular dining table, employing shape is that the housing 2 of circle is also proper).In the present embodiment, the base plate 22 that housing 2 comprises center 21 and is connected to bottom this center 21, center 21 is fixedly connected with by screw mode or welding manner with base plate 22, panel 3 lid is located on the top end face of center 21, panel 3 lid is located at the top of center 21, the bottom edge of panel 3 is supported on the sidewall top end face of center 21, the edge of panel 3 stretches out and exceeds the outer surface of center 21, can be fixedly connected with by screw mode or bonding method between panel 3 with center 21 sidewall, because panel 3 covers the opening part of whole housing 2, like this, avoid because placing on the whole and filling in the disc of food, the soup juice spilt enters in housing 2 and causes electronic device short circuit in housing 2 and damage, substantially increase the waterproof effect of electric heat-emitting board 1 and extend service life.Further, a plugs and sockets 7 be electrically connected with the first change-over panel 6 is provided with in the side of center 21, housing 2 is removably connected with an electric power connection line (scheming not shown) in this plugs and sockets 7 position, the place of wireless power supply 100 be not installed, directly can be connected with power supply by being plugged with electric power connection line, like this, owing to being dismountable connection between electric power connection line with housing 2, therefore, it is possible to improve the convenience used, wireless mode or wired mode can be adopted to open electric heat-emitting board 1 having the occasion of wireless power supply 100, this wired mode of electric power connection line is adopted to power to inside in the occasion of not installing wireless power supply 100.In addition, be also provided with a switch 8 in the side of housing 2, switch 8 is electrically connected with the first change-over panel 6, and by stirring this switch 8, be turned on or off heater element 4 and plugs and sockets 7.Center 21 is also provided with relay indicating light 9, to show heating work status information.
Certainly, when base plate 22 has certain altitude with desktop, plugs and sockets 7 also can be arranged on base plate 22.
In order to avoid the too high components and parts that cause of housing 2 internal temperature of electric heat-emitting board 1 burn, the outer wall of center 21 is formed with multiple radiating fin (scheming not shown) for the heat of housing 2 inside being exported to this hull outside, increase the outer surface of center and the contact area of extraneous air, be convenient to heat radiation.
Further, one Temperature sampler (scheming not shown) is installed in housing 2, Temperature sampler is electrically connected with the first change-over panel 6, the temperature of counter plate 3 can monitor in electric heat-emitting board 1 course of work, a predetermined temperature value scope is set in Temperature sampler, this predetermined temperature value scope between 60 °-90 °, preferably between 75 °-85 °.When the greatest measure of the temperature that Temperature sampler collects higher than this predetermined temperature value scope, first change-over panel 6 closes heater element 4, stops heating, when the minimum value of temperature lower than this predetermined temperature value scope, first change-over panel 6 starts heater element 4, reheats.Like this, for just burned food, because temperature is higher, heating is not needed time on the panel 3 being placed on this electric heat-emitting board 1, but just start heating when minimum value lower than predetermined temperature value scope of the temperature of food, and can electricity consumption be saved like this, economical and practical.
These are only preferred embodiment of the present utility model, not in order to limit the utility model, all do within spirit of the present utility model and principle any amendment, equivalent to replace or improvement etc., all should be included within protection domain of the present utility model.