CN105852370B - Lunch box - Google Patents

Abstract

The invention discloses a kind of lunch boxes, it is described including pedestal and inner box, the pedestal includes the first bottom and the first side wall, first bottom and the first side wall surround the first accommodating space, the inner box is removably installed in first bottom, and it is contained in the pedestal, the inner box is provided with the first heater close to the position of first bottom, accumulator group is provided in the pedestal, the accumulator group is electrically connected with first heater, first heater in the form of sheets, and includes the material with consistent heat generation characteristic.The lunch box can promote the degree of being heated evenly of food, and health environment-friendly, be also convenient for using outdoors or under particular surroundings.

Description

Lunch box

Technical field

The present invention relates to table ware field more particularly to a kind of heatable lunch boxes.

Background technology

With the raising increased and working clan requires quality of the life of city population from other places, more and more people custom from Family band food goes to work or goes out.For the sake of for health and promoting mouthfeel, institute's band food needs to heat before consumption.However, it uses Lunch box of the prior art, is typically heated using micro-wave oven, and existing lunch box is heated in micro-wave oven and is usually heated It is uneven so that part food is very hot and part food is cool, influences mouthfeel, in addition, microwave stove heat is easily destroyed food The molecular structure of itself, so as to which the nutritional ingredient of food easily be made to disappear, it could even be possible to generating harmful substance.

In addition, lunch box of the prior art outdoors or under particular surroundings (such as taxi driver), is not easy to find heating and set Standby, so as to cause being inconvenient to heat food, therefore, lunch box of the prior art is difficult to meet the needs of this part population.

Invention content

The technical problems to be solved by the invention are, provide a kind of lunch box, and the lunch box can promote the heated of food The uniformity, and health environment-friendly are also convenient for using outdoors or under particular surroundings.

In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：

The present invention provides a kind of lunch box, and the lunch box includes pedestal and inner box, and the pedestal includes the first bottom and first Side wall, first bottom and the first side wall surround the first accommodating space, and the inner box is removably installed in first bottom Portion, and the pedestal is contained in, the inner box is provided with the first heater, the pedestal close to the position of first bottom Inside be provided with accumulator group, the accumulator group is electrically connected with first heater, first heater in the form of sheets, and Include the material with consistent heat generation characteristic.

Wherein, the material of first heater be graphene, nichrome, ferrochrome, albronze, carbon fiber and At least one of ceramics.

Wherein, first heater includes one or more sheet-shaped heating elements.

Wherein, the inner box further includes inner box shell and liner, and the inner box shell includes the second bottom and second sidewall, Second bottom and the second sidewall form the second accommodating space, and the liner is contained in the inner box shell, and described the One heater is set between the liner and the inner box shell.

Wherein, first heater extends along second bottom, and is covered with second bottom.

Wherein, the surface of the direction pedestal of second bottom is provided with multiple inner support feet, multiple interior branch It is contacted between spike with gapping interval, the inner box by the inner support foot with first bottom of the pedestal.

Wherein, the inner box further includes the second heater, and second heater is located at the liner and the second side Between wall, first heater is between the liner and second bottom.

Wherein, second heater includes one or more sheet-shaped heating elements.

Wherein, the liner has one or more food placed cavities, for accommodating food.

Wherein, it when the number of the food placed cavity is multiple, is set between food placed cavity described in each two State the second heater.

Wherein, the inner box further includes the first temperature sensor, first temperature sensor be set to the liner and Between the inner box shell, the pedestal further includes control circuit, button and wireless communication module, the control circuit include with The central processing unit that first temperature sensor is electrically connected, the central processing unit and the button and described wireless Communication module is electrically connected, to handle the instruction from the button or the wireless communication module, the central processing unit It is electrically connected with first temperature sensor, and first fever is controlled according to the temperature of first temperature sensor Body and second heater are heated or not heated the liner.

Wherein, the APP of the wireless communication module and exterior terminal connections so that the central processing unit with it is described APP is into row data communication.

Wherein, the first heater described in the central processing unit controls and second heater are by preengaging heated mould Formula, quick heating mode or ramped heating schedule pattern are heated to being loaded on the liner food.

Wherein, first temperature sensor, first heater and second heater are respectively by with bullet The hard contact connector of property is electrically connected to the control circuit.

Wherein, the control circuit further includes the power outlet being electrically connected successively, electric power management circuit and heating management Circuit, the heating management circuit are electrically connected with the central processing unit, the electric power management circuit and the accumulator Group is electrically connected, and external electric energy is defeated by the electric power management circuit by the power outlet, and the electric power management circuit detects institute It states the electricity of accumulator group and decides whether to charge for the accumulator group, the accumulator group is the heating management electricity Road provides electric energy or the electric power management circuit and external electric energy directly is conveyed to the heating management circuit, the heating tube Electric energy is transferred to first heater and second heater by reason circuit, makes first heater and second hair Hot body fever.

Wherein, the pedestal includes opposite the first inner casing and the first shell, and first shell is accommodated in described first Shell, and third accommodating space is formed between first shell and first inner casing, first inner casing is located at close to described The side of inner box, towards external environment, the position that first bottom is corresponded on first shell is set first shell Be equipped with heat sink, the storage battery is placed on the heat sink, first shell have a slot, the heat sink from The slot exposes, to radiate for the accumulator group.

Wherein, the surface of the direction pedestal of second bottom is provided with multiple inner support feet, multiple interior branch There are gapping intervals, first inner casing between spike to be provided with ventilating duct, the ventilating duct at the inner box side The gapping interval and external environment are penetrated through, to for the heat dissipations such as the circuit, accumulator group.

Wherein, the position by proximal edge of first shell is provided with multiple outer support feet, in the outer support foot Weight sensor is provided with, to weigh the weight that food is filled in the liner, the weight sensor and the centre Unit is managed to be electrically connected.

Wherein, the outside setting of the first side wall of the pedestal is there are two fatty sensor, for measuring person under test Fat content, fat sensor and the central processing unit are electrically connected.

Wherein, the liner, which includes metal layer and the coating being set on the metal layer, the coating, makes the food Placed cavity is readily cleaned cleaning, has the effects that sterilize to the food for being positioned over the food placed cavity and fresh-keeping.

Wherein, the coating is one or more using the materials such as Tao Jing, nano silver and Teflon and technique.

Wherein, the surface of the direction liner of the inner box shell is provided with insulating layer.

Wherein, be provided on the inner box with the matched inner cover of food placed cavity, placed with sealing the food The food of intracavitary.

Wherein, interior cover is provided with venthole, and the venthole is used to balance the inside of inner box in heating process Air pressure and external pressure.

Wherein, the inner surface of the inner cover is provided with silver nanowire coating, to sterilization fresh-keeping.

Wherein, the lunch box further includes outer cover, and the outer cover is used to cover one of the pedestal far from first bottom End, makes the inner box be closed in the first accommodating space of the pedestal, the edge of the outer cover is provided with magnetic absorption member and/or button Part, the magnetic absorption member and/or the fastener are used to the outer cover being fixed on the first side wall of the pedestal.

Wherein, one end of the close outer cover of the first side wall is provided with tableware placing groove.

Wherein, the material of second heater is identical with the material of first heater.

Compared with prior art, technical scheme of the present invention at least has the advantages that：

In technical scheme of the present invention, the lunch box includes pedestal and inner box, and the pedestal includes the first bottom and first Side wall, first bottom and the first side wall surround the first accommodating space, and the inner box is removably installed in first bottom Portion, and the pedestal is contained in, the inner box is provided with the first heater, the pedestal close to the position of first bottom Inside be provided with accumulator group, the accumulator group is electrically connected with first heater, first heater in the form of sheets, and Include the material with consistent heat generation characteristic.Due to being provided with accumulator group in the pedestal of the lunch box, can charge, and due to The inner box is provided with first heater, and first heater has the function of fever, can use the accumulator The stored electric energy of group is heated outdoors or under particular surroundings, health environment-friendly and conveniently；Again due to first heater In the form of sheets, and comprising the material with consistent heat generation characteristic, heating area is big, and it is uniform to generate heat, and belongs to plane glow mode, because This, can be heated evenly the food in the food in heating the lunch box, promote mouthfeel.

Description of the drawings

In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with Other attached drawings are obtained according to these attached drawings.

Fig. 1 a are schematic top plan views when lunch box is without outer cover in first embodiment of the invention；

Fig. 1 b are the schematic cross-sections along cutting line A-A of Fig. 1 a；

Fig. 1 c are the structure diagrams after lunch box dismounting in first embodiment of the invention；

Fig. 2 a are the schematic cross-sections of the pedestal of lunch box in first embodiment of the invention；

Fig. 2 b are the elevational schematic views of the pedestal of lunch box in first embodiment of the invention；

Fig. 2 c are the schematic side views of the pedestal of lunch box in first embodiment of the invention；

Fig. 3 is the electrical block diagram of lunch box in first embodiment of the invention；

Fig. 4 a are the front views of the inner box of lunch box in first embodiment of the invention；

Fig. 4 b are the schematic top plan views of the inner box of lunch box in first embodiment of the invention；

Fig. 4 c are that the inner box of lunch box is looked up regarding schematic diagram in first embodiment of the invention；

Fig. 4 d are the left view schematic diagrams of lunch box in Fig. 4 a；

Fig. 5 is the structure diagram of the inner box of lunch box in second embodiment of the invention；And

Fig. 6 is the electrical block diagram of lunch box in second embodiment of the invention.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment shall fall within the protection scope of the present invention.

In addition, the explanation of following embodiment is with reference to additional diagram, the spy implemented the present invention to be illustrated to can be used to Determine embodiment.Direction term mentioned in the present invention, for example, " on ", " under ", "front", "rear", "left", "right", " interior ", " outer ", " side " etc. are only the directions with reference to annexed drawings, and therefore, the direction term used is to more preferably, more clearly say It is bright and understand the present invention rather than instruction or imply signified device or element must have specific orientation, with specific side Position construction and operation, therefore be not considered as limiting the invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or detachably connected or integrally connect It connects；It can be mechanical connection；It can be directly connected, can also be indirectly connected by intermediary, can be in two elements The connection in portion.For the ordinary skill in the art, the tool of above-mentioned term in the present invention can be understood with concrete condition Body meaning.

In addition, in the description of the present invention, unless otherwise indicated, " multiple " are meant that two or more.If this Occur the term of " process " in specification, refer not only to independent process, when can not clearly be distinguished with other process, as long as It can realize that the effect desired by the process is then also included in this term.In addition, the numberical range represented in this specification with "-" Refer to the range that the numerical value recorded before and after using "-" is included as minimum value and maximum value.In the accompanying drawings, structure is similar Or identical unit is indicated by the same numeral.

It is bowing when lunch box is without outer cover in first embodiment of the invention also referring to Fig. 1 a, Fig. 1 b and Fig. 1 c, Fig. 1 a Depending on schematic diagram, Fig. 1 b are the schematic cross-sections along cutting line A-A of Fig. 1 a, and Fig. 1 c are that lunch box dismounts in first embodiment of the invention Structure diagram afterwards.In the first embodiment of the present invention, the lunch box includes pedestal 100 and inner box 200, to be heated or wait to eat Food is loaded in the inner box 200.The pedestal 100 includes the first bottom 110 and the first side wall 120, first bottom Portion 110 and the first side wall 120 surround the first accommodating space 130, to accommodate the inner box 200.The inner box 200 is removably pacified The first bottom 110 loaded on the pedestal 100, and be contained in the pedestal 110, i.e., described inner box 200 is located at described first and holds 130 between emptying.Tableware placing groove 122 is provided in the first side wall 120, to place tableware, such as spoon, chopsticks etc.. The inner box 200 is provided with the first heater 210 close to the position of first bottom 110, and first heater 210 is used Food in the heating lunch box.It is provided with accumulator group 140 in the pedestal 100, the accumulator group 140 and described the One heater 210 is electrically connected, and first heater 210 in the form of sheets, and includes the material with consistent heat generation characteristic.It is described Accumulator group 140 provides electric energy for first heater 210, and the first heater 210 is made to generate heat.First heater 210 Material can be graphene, nichrome, ferrochrome, albronze, carbon fiber and ceramics at least one of, also I.e.：First heater 210 is either the hairs such as graphene, nichrome, ferrochrome, albronze, carbon fiber, ceramics Any one in hot material or the hairs such as graphene, nichrome, ferrochrome, albronze, carbon fiber, ceramics Two or more of arbitrary combinations among hot material.

Due to being provided with accumulator group in the pedestal of the lunch box, can charge, and described in the inner box is provided with First heater, first heater have the function of fever, can use the electric energy that the accumulator group is stored at family It is heated under outer or particular surroundings, health environment-friendly and conveniently；Again due to first heater in the form of sheets, and comprising with equal The material of even heat generation characteristic, heating area is big, and it is uniform to generate heat, and belongs to plane glow mode, therefore, in the lunch box is heated Food when can be heated evenly the food, promoted mouthfeel.

For example, when first heater 210 is grapheme material, since the grapheme material thermal conversion rate is high, only Needing the power supply of more than 3V can drive graphene layer to generate heat, therefore, the electricity that the accumulator group 140 can be used to be stored completely The food in the lunch box can be heated outdoors or under particular surroundings, convenient and efficient and health environment-friendly；Again due to graphite The glow mode of alkene is plane glow mode, has the characteristics that fever is uniform, therefore, the energy in the food in heating the lunch box The food is heated evenly, promotes mouthfeel.

One end opposite with the tableware placing groove 122 of the first side wall 120 of the pedestal 100 is provided with display screen 124, the display screen 124 is for showing various parameters, operating process, current state etc., for example, heating parameters, food weight And the relevant parameter of other operations.

Since the inner box 200 is removably installed in the first bottom 110 of the pedestal 100, inner box 200 can To be independent box body taking-up, in the case of reuse, in office when fixed-sites use the lunch box, user Without pedestal 100 is taken home daily, and inner box need to only be taken home and contain food, and pedestal is stayed in the office and is remained Next day heats.In this way, inner box is made to be convenient for carrying and convenient for cleaning.

The lunch box further includes outer cover 300, for closing the pedestal 100 and being contained in the inner box of the pedestal 100 200, it is conducive to while being convenient for carrying fresh-keeping.The edge of the outer cover 300 is provided with magnetic absorption member 320 and/or fastener 320, uses The outer cover to be fixed on to the first side wall 120 of the pedestal 100.Specifically, the outer cover 300 is used to cover the pedestal 100 one end far from first bottom 110, makes the inner box 200 be limited in the first accommodating space of the pedestal 100 In 130.The material of outer cover 300 can be high molecular material or polymer composite, such as PP materials, outer cover 300 it is transparent Degree and color can be adjusted in production, so as to which the display content of the display screen 124 on pedestal 100 be allow to penetrate outer cover 300, it is watched convenient for user.

Preferably, first heater 210 can be in planar, so as to which the food in the inner box 200 be made to be heated more Uniformly, heating speed is faster.

Further, the inner box 200 further includes inner box shell 220 and liner 230, and the liner 230 is sheathed on described In inner box shell 220.The inner box shell 220 includes the second bottom 221 and second sidewall 222, second bottom 221 and institute It states second sidewall 222 to be mutually linked to form the second accommodating space (not indicating number in figure), the liner 230 is contained in described Box shell 220, i.e., described liner 230 are located at second accommodating space.First heater 210 is set to the liner Between 230 and the inner box shell 220, and first heater 210 is set to the liner 230 and the inner box shell Between 220 the second bottom 221.Preferably, first heater 210 is close to the liner 230 to improve heating efficiency. In a kind of embodiment, first heater can be extended along second bottom 221, and be covered with second bottom 221.Preferably, the first heater can set multiple sheet-shaped heating elements along second bottom 221, and be covered with described second Bottom 221.

The liner 230 has one or more food placed cavities 231, for accommodating food, for example, the liner can be with 1~21 food placed cavity 231 is provided with, is separated between each food placed cavity 231 by partition wall (not indicating number in figure), with It prevents from mixing the two kinds of different foods that should not be admixed together.Each food placed cavity 231 and described second of the liner 230 One first heater 210 is respectively provided between bottom 221.Preferably, first heater 210 is in flat planar, with institute It states food placed cavity 231 to be closely affixed, and first heater 210 can be covered with the bottom surface of entire food placed cavity 231, institute The bottom surface for stating food placed cavity 231 refers to the surface of the direction of food placed cavity 231 second bottom 221.

The inner box 200 further includes the first temperature sensor 250, and first temperature sensor 250 is set in described Between courage 230 and the inner box shell 220, to sense the temperature of the temperature in inner box 200, especially liner 230.Described One temperature sensor 250 can set one or more, can between described 230 two food placed cavities of liner, so as to Make the temperature that first temperature sensor 250 is sensed closer to the temperature of food in liner 230.The food placed cavity It can be square, is round, oval or other shapes.

Please refer to Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 3, Fig. 3 are that the circuit structure of lunch box in first embodiment of the invention shows It is intended to.The pedestal 100 further includes control circuit 150, button 123 and wireless communication module 170.Preferably, the control electricity Road 150 and button 123 are set in the first side wall 120 of the pedestal 100.The control circuit 150 includes and described first The central processing unit 151 that temperature sensor 250 is electrically connected, the central processing unit 151 and the button 123 and described Wireless communication module 170 is electrically connected, described to handle the instruction from the button 120 or the wireless communication module 170 Central processing unit 151 is electrically connected with first temperature sensor 250, and according to 250 institute of the first temperature sensor The temperature of feedback controls first heater 210 to be heated or not heated the liner.

The control circuit 150 further includes the power outlet 152 being electrically connected successively, electric power management circuit 153 and heating Manage circuit 154.The heating management circuit 154 is electrically connected with the central processing unit 151, the electric power management circuit 153 are electrically connected with the accumulator group 140.External electric energy is conveyed to the electric power management circuit by the power outlet 152 153, the electric power management circuit 153 detect the electricity of the accumulator group 140 and decide whether for the accumulator group 140 into If row charging without charging, directly conveys external electric energy to the heating management circuit 154.In the situation of no external power supply, The accumulator group 140 manages circuit 154 for the heating and provides electric energy, and in the case where there is external power supply, the power supply is inserted After external electric energy is conveyed to the electric power management circuit 153 by seat 152, the electric power management circuit 153 is directly by external electric energy The heating management circuit 154 is conveyed to, electric energy is transferred to first heater 210, made by the heating management circuit 154 First heater 210 generates heat, so as to be the heat foods in the food placed cavity 231.

For example, using the external power supply of alternating current 110V~220V, external electric energy is inputted or by external power adapter Input dc power after (not shown) conversion, the voltage of direct current is 5V~32V, and internal circuit is adaptive.Power management electricity External electric energy can be supplied to accumulator group 140 to charge by road 153, be directly output to heating management circuit 154 so that the first fever Body 240 generates heat.

The accumulator group 140 can be using multiple rechargeable batteries, connected by way of connecting and/or is in parallel and It is formed.The protection circuit of battery can be provided in the accumulator group 140, plays overheating protection, overcurrent protection, short-circuit protection Effect and there is battery series connection equalizing circuit etc..The preferred 3V of input and output voltage of the accumulator group 140~ In the range of 36V.

Electric power management circuit 153 when there is external power supply input, by detect the accumulator group 140 electricity determine be It is no to charge for the accumulator group 140, after the accumulator group 140 is fully charged, charge closing.

The central processing unit 151 controls first heater 210 by preengaging heating mode, quick heating mode Or ramped heating schedule pattern heats the food being loaded in the food placed cavity 231.

Bluetooth, the wireless communication techniques such as WIFI, mobile network may be used in the wireless communication module 170.

The wireless communication module 170 is connect with the APP (not shown)s of exterior terminal (for example, mobile phone), so that institute The central processing unit 151 and APP is stated into row data communication.It can be real with the APP by the central processing unit 151 Existing multiple functions.For example, the central processing unit 151 by radio communication the APP of module 170 and mobile phone, cloud database, after Platform equipment etc. carries out wireless communication, and receives the instruction and data from cell phone application, also, the central processing unit 151 also may be used Transfer data to mobile phone app, cloud database, background devices etc..

The central processing unit 151 receives the order of button 123 or wireless communication module 170, for example, be immediately heated, Timing heated etc. is proceeded by, and according to order setting relevant parameter and working condition, for example, the target temperature of heating, various Temperatur-timel curve data of heating mode etc., display working condition, such as etc. countdown to be heated, timing heated, adding Heat, heating completion etc..

The central processing unit 151 controls first heater 210 by preengaging heating mode, quick heating mode Or ramped heating schedule pattern heats the food being loaded in the liner 230.Central processing unit 151 is in heating work During state, it will open heating management circuit 154 according to corresponding heating mode, electrical heating is supplied to first heater 210, In each period of heating, central processing unit 151 is by reading the Current Temperatures number of first temperature sensor 250 More whether value, reach target temperature value, if being less than target temperature value, continue to heat, if met or exceeded, stops adding Heat, and monitor temperature change always, Current Temperatures drop to the threshold values (during as less than 3 DEG C of target temperature) of setting, again plus Heat.The data of specific heating mode can be extracted, and be transferred to the centre of lunch box by App in the database of systemic presupposition Manage unit 151.Different heating modes can be according to specific food, and it is more preferable to heat out taste, more nutritious food.

The reservation heating mode that is, by the display screen 124 and button 123 or passes through 151 institute of central processing unit Some specific time of App settings of connection has a meal, and App calculates the count down time for starting heating, and count down time is transmitted to Central processing unit 151, central processing unit 151 is according to the time data, after countdown, starts to start heating, and By heat foods to the temperature preset before the mealtime set by user.

After the quick heating mode, that is, central processing unit 151 starts heating, total power is powered to heater, Total power is generated heat, rapid heating of foods.

Described program heating heating mode, refers to that entire heating process (time) is divided into several periods by system, just Start, when temperature is relatively low, heated using bigger power, temperature raising is very fast；Subsequent time period, among temperature Value, heating can be carried out with middle power, and heating is moderate；Be heated to the later stage, temperature is higher, heating using intermittent mode into Row, makes food heat up at a slow speed, food is made to heat up completely uniformly, in good taste, nutrition is kept, and food can also be avoided burnt.Tool Body, each period sets different target temperature values, the target temperature of that last period is also set by user Food temperature when being heated, in the specific period, is only heated to the target of period setting by dining target temperature Temperature.For example, heating temperature is heated to 55 DEG C from 15 DEG C, 55 DEG C of final dining temperature for user's setting, it is contemplated that it is entire plus The hot time is 30 minutes, this heating mode is set as three periods, and each period is 10 minutes, the mesh of first period Mark temperature is set as 35 DEG C, and the target temperature of second period is set as 50 DEG C, and the target temperature of third period is set as 55 DEG C. It, only can by the target temperature value that heat foods are set to the period in each period.So as to make food often to It is all fully heated in period, it is unlikely to that a certain part of the food has been pasted and target temperature has not yet been reached in another part food, makes food Object is heated evenly and healthier deliciousness.

Further, it is the bottom of lunch box in first embodiment of the invention please refer to Fig. 2 a, Fig. 2 b and Fig. 2 c, Fig. 2 a The schematic cross-section of seat, Fig. 2 b are the elevational schematic views of the pedestal of lunch box in first embodiment of the invention, and Fig. 2 c are the present invention the The schematic side view of the pedestal of lunch box in one embodiment.The pedestal 100 includes opposite the first inner casing 111 and the first shell 112, first shell 112 accommodates first inner casing 111, and the extension shape of first inner casing 111 is close to described first The extension shape of shell 112, and third accommodating space is formed between first shell 112 and first inner casing 111 (in figure Number is not indicated).First inner casing 111 is located at close to the side of the inner box 200, and first shell 112 is towards outside Environment, i.e., described first shell 112 are exposed to the external world.

The control circuit 150 and the wireless communication module 170 are set to the third accommodating space, the button 123 and display screen 124 be set to first shell 112.

Position on first shell 112 corresponding to first bottom 110 is provided with heat sink 113, the electric power storage Pond group 140 is set on the heat sink 113, and first shell 112 has a slot (not shown), the heat sink 113 expose from the slot external environment, to radiate for the accumulator group 140.

The side of first inner casing 111 by setting some grooves, forms ventilating duct 160, the ventilating duct 160 will Gapping interval between second bottom of the inner box 200 and the pedestal 100 is penetrated through with external environment, makes first fever The heat that body 210 and the accumulator group 140 give out is spaced, and can be radiated by the ventilating duct.The accumulator Second temperature sensor 141 (see Fig. 3) is provided in group 140 or close to the position of the accumulator group 140, it is described to monitor The temperature of accumulator group 140 ensures safety.

The position by proximal edge of first shell 112 is provided with multiple outer support feet 180, it is preferable that the outer branch The number of spike can be 4.Weight sensor is both provided in the outer support foot 180, to weigh in the liner 230 The weight of filled food, the weight sensor are electrically connected with the central processing unit 151.The weight sensor can be with It is that resistance change is led to by the deformation of built-in metal item, to measure weight, the measured weight of all outer support feet 180 Amount integrates the total weight for being exactly lunch box and its filled food.By the variation of total weight, the weight change for filling food is calculated Change.

Several dishes, meal etc. are sequentially added, by recording weight change, system accounting calculates each dish, the weight of meal.

For example, user, before food is added, the gravimetric value of system record is G1, after adding in first dish, system record Gravimetric value is G2, and after adding in second dish, the gravimetric value of system record is G3, after being eventually adding rice, the weight of system record It is worth weight=G2-G1 for G4, then first dish, weight=G3-G2 of second dish, weight=G4-G3 of rice.

The weight sensor can also use other senser elements, such as quartz crystal, and quartz crystal is by pressure When, frequency of oscillation can change, so as to can be exchanged into the weight that lunch box is carried.

Fig. 2 c are please referred to, Fig. 2 c are the schematic side views of the pedestal of lunch box in first embodiment of the invention.The pedestal 100 The first side wall 120 outside setting there are two fatty sensor 121, for measuring the fat content of person under test, the fat Sensor 121 is electrically connected with the central processing unit 151.The thumb of both hands is pressed on fatty sensor by user respectively On 121, system can read the resistance value between two fatty sensors 121, and calculate the fat content percentage of human body Ratio, so as to which user be allowed to understand relevant health status.

It is that the inner box of lunch box is faced in first embodiment of the invention to please refer to Fig. 4 a, Fig. 4 b, Fig. 4 c and Fig. 4 d, Fig. 4 a Figure, Fig. 4 b are the schematic top plan views of the inner box of lunch box in first embodiment of the invention, and Fig. 4 c are first embodiment of the invention lunches The inner box of box is looked up regarding schematic diagram, and Fig. 4 d are the left view schematic diagrams of lunch box in Fig. 4 a.In the inner box 200 of the lunch box further includes Lid 233, the inner cover 233 are matched with the food placed cavity 231, to seal the food in the food placed cavity 231, often One inner cover 233 corresponds to a food placed cavity 231 respectively.The inner cover 233 includes multiple inner cover sides and detains 2332, by described The inner cover is fixed in the second sidewall 222 of the inner box 200 by inner cover side button 2332.The material of the inner cover 233 can be with It is high molecular material or polymer composite, such as PP materials, the transparency and color of inner cover 233 can be carried out in production It adjusts, therefore, user is through outer cover 300 and inner cover 233, moreover it is possible to it is fuzzy to see internal food, there are beautiful, increase people Appetite effect.

The inner surface of the inner cover 233 is provided with stenlizing layer (not shown), and the stenlizing layer can be silver nanowire Material, to sterilization fresh-keeping.

There is a mobilizable vent cap 2331 in the centre of each inner cover 233, and the vent cap 2331 is not broken When opening, inner cover 233 forms sealing state with the liner 230 to the food placed cavity, if necessary, can be by the ventilation Port lid 2331 is broken into two with one's hands or is unscrewed, such as can break into two with one's hands or unscrew in the case of wanting that heating temperature is higher and generating steam and is described logical Air-vent cap 2331, so that the air pressure balance inside and outside food placed cavity 231.

The surface of the direction pedestal 100 of second bottom 221 of the inner box 200 is provided with multiple inner support feet 223, the inner support foot 223 and the bottom are passed through with gapping interval, the inner box 200 between multiple inner support feet 223 First bottom 110 of seat 100 contacts.So as to further be isolated with the pedestal 100, and pass through ventilating duct 160 and outside Environment penetrates through, and the heat that first heater 210 is distributed will not conduct the accumulator group 140 to pedestal, so as to more pacify Entirely.

The 200 of inner box further include insulating layer (not shown), and the insulating layer is set to the inner surface of inner box shell 220 On, the insulating layer is tightly pasted on the inner surface of inner box shell 220, can make food in food placed cavity 231 radiate compared with Slowly, the fever for also making first heater 210 is more effective, energy conservation and environmental protection.In addition, also prevent the heat of the first heater 210 Pass to the accumulator group 140 of pedestal 100.

Flexible hard contact connector 260 is provided in the second sidewall 222 of the inner box 200, that is, described First temperature sensor 250, first heater 210 are electrically connected respectively by flexible hard contact connector 260 It is connected to the control circuit 150 of pedestal 100.

Further, the liner of the inner box 200 includes metal layer (not shown) and is set to the metal layer On coating (not shown), the coating make lunch box cleaning it is more convenient, to being positioned over the food of the food placed cavity With sterilization and preservation.The coating includes nano silver and Teflon or Tao Jing.Specifically, metal conjunction may be used in liner Golden material, such as stainless steel, aluminium alloy etc. have the characteristics that heat transmission is excellent, and surface is using materials such as Teflon, pottery crystal coatings Expect, the material (such as nano silver) with restraining and sterilizing bacteria is added in Teflon, Tao Jing materials, forms composite material.

These coatings additionally aid the cleaning of lunch box, if the liner of a stainless steel material, in washing, Surface and oil contaminant etc. is difficult to clean up.

When being powered to the lunch box, on pedestal 100, the button 123 is normally pressed, lunch box will be according to the ginseng set Number, food is heated, in heating process, normally presses the button 123, will pause heating, then it is subnormal press this by Key 123 as continues to heat.

Fig. 5 and Fig. 6 are please referred to, Fig. 5 is the structure diagram of the inner box of lunch box in second embodiment of the invention, and Fig. 6 is this The electrical block diagram of lunch box in invention second embodiment.The structure and first of lunch box in the present embodiment (second embodiment) The structure of lunch box described in embodiment is essentially identical, the difference lies in：The inner box 200 of lunch box described in the present embodiment further includes Multiple second heaters 240, second heater 240 is between the liner and the second sidewall, first hair Hot body 210 is between the liner 230 and second bottom 221；Second heater 240 can also be set to adjacent Between two food placed cavities 240；First heater 210 and second heater 240 are managed with the heating Circuit 154 connects.

Preferably, the material of first heater 210 can be identical with the material of second heater 240, for example, First heater 210 and the second heater 240 can be graphene, nichrome, ferrochrome, albronze, carbon fiber At least one of and ceramics, for example, the first heater 210 and the second heater 240 are pure graphene or main packet Graphene-containing.

External electric energy is defeated by the electric power management circuit 153, the electric power management circuit 153 by the power outlet 152 It detects the electricity of the accumulator group 140 and decides whether to charge for the accumulator group 140, the accumulator group 140 Electric energy or the electric power management circuit 153 are provided for the heating management circuit 154, and external electric energy is directly conveyed to described add Electric energy is transferred to the first heater 210 and second heater by thermal management circuit 154, the heating management circuit 154 240, first heater 210 and second heater 240 is made to generate heat, so as to the food in the food placed cavity 231 Object is heated.

The central processing unit 151 controls first heater 210 and second heater 240 to add by reservation Heat pattern, quick heating mode or ramped heating schedule pattern are heated to being loaded on the liner food.

The inner box 200 is electrically connected to the control circuit 150 by flexible hard contact connector 260, I.e. described first temperature sensor 250, first heater 210 and second heater 240 are respectively by having elasticity Hard contact connector 260 be electrically connected to the control circuit 150.

In the present embodiment, since inner box 200 further includes multiple second heaters 240, i.e., it is provided with the first hair in inner box 200 Hot body 210 and second heater 240, second heater 240 is between the liner and the second sidewall, institute The first heater 210 is stated between the liner 230 and second bottom 221, second heater 240 can also be set It is placed between the two neighboring food placed cavity 240, so as to make the graphene that can be generated heat by the food in the liner 230 Placed cavity 231 surrounds, and is further heated evenly food placed cavity 231, efficiency of heating surface higher.

In the present embodiment, preferably, the second heater 240 can include one or more sheet-shaped heating elements, point It is not set to the side of each food placed cavity 231.Multiple temperature sensor (diagram does not mark) can also be set, pacified respectively Mounted in the side of food placed cavity 231, so as to accurately control the temperature of each food placed cavity 231, make heating food Tastier, nutrition preserves more preferable.

In the description of this specification, reference term " one embodiment ", " example ", " is specifically shown " some embodiments " The description of example " or " some examples " etc. means to combine the embodiment or example particular features, structures, materials, or characteristics described It is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms differ Surely identical embodiment or example are referred to.Moreover, the particular features, structures, materials, or characteristics of description can be any one It is combined in an appropriate manner in a or multiple embodiments or example.

Embodiments described above does not form the restriction to the technical solution protection domain.It is any in above-mentioned implementation Modifications, equivalent substitutions and improvements made within the spirit and principle of mode etc., should be included in the protection model of the technical solution Within enclosing.

Claims (24)

1. a kind of lunch box, which is characterized in that including pedestal and inner box, the pedestal includes the first bottom and the first side wall, described First bottom and the first side wall surround the first accommodating space, and the inner box is removably installed in first bottom, and accommodates In being provided with the first heater on the pedestal, the inner box, first heater is close to first bottom, the pedestal Inside be provided with accumulator group, the accumulator group is electrically connected with first heater, first heater in the form of sheets, and Comprising the material with consistent heat generation characteristic, the inner box further includes inner box shell and liner, and the inner box shell includes second Bottom and second sidewall, second bottom and the second sidewall form the second accommodating space, and the liner is contained in described Inner box shell, the surface of the direction pedestal of second bottom are provided with multiple inner support feet, multiple inner support feet Between contacted with gapping interval, the inner box by the inner support foot with first bottom of the pedestal, the pedestal It is additionally provided with groove at towards the second sidewall of the inner box, forms ventilating duct, the ventilating duct is by the gap and external rings Border penetrates through, and makes first heater and heat that the accumulator group gives out is spaced, and can pass through the ventilating duct Heat dissipation, the pedestal include the first shell, and first shell corresponds to described the towards external environment, on first shell The position of one bottom is provided with heat sink, and the storage battery is placed on the heat sink, and first shell has a slot Hole, the heat sink expose from the slot, to radiate for the accumulator group.

2. lunch box as described in claim 1, which is characterized in that the material of first heater be graphene, nichrome, Ferrochrome, albronze, carbon fiber and ceramics at least one of, first heater includes one or more sheets Heater.

3. lunch box as claimed in claim 1 or 2, which is characterized in that first heater is set to the liner and described Between inner box shell.

4. lunch box as claimed in claim 3, which is characterized in that first heater extends along second bottom, and cloth Full second bottom.

5. lunch box as claimed in claim 3, which is characterized in that the inner box further includes the second heater, second fever Body between the liner and the second sidewall, first heater be located at the liner and second bottom it Between, second heater includes one or more sheet-shaped heating elements.

6. lunch box as claimed in claim 5, which is characterized in that the liner has one or more food placed cavities, is used for Accommodating food.

7. lunch box as claimed in claim 6, which is characterized in that when the number of the food placed cavity is multiple, each two Second heater is provided between the food placed cavity.

8. lunch box as claimed in claim 7, which is characterized in that the inner box further includes the first temperature sensor, and described first Temperature sensor is set between the liner and the inner box shell, and the pedestal further includes control circuit, button and wireless Communication module, the control circuit include the central processing unit being electrically connected with first temperature sensor, the center Processing unit is electrically connected with the button and the wireless communication module, with processing from the button or the wireless communication The instruction of module, the central processing unit are electrically connected with first temperature sensor, and are passed according to first temperature The temperature of sensor controls first heater and second heater to be heated or not heated the liner.

9. lunch box as claimed in claim 8, which is characterized in that the APP of the wireless communication module and exterior terminal connections, with Make the central processing unit and the APP into row data communication.

10. lunch box as claimed in claim 9, which is characterized in that the first heater described in the central processing unit controls and Second heater is eaten by preengaging heating mode, quick heating mode or ramped heating schedule pattern to being loaded on the liner Object is heated.

11. lunch box as claimed in claim 8, which is characterized in that first temperature sensor, first heater and institute It states the second heater and the control circuit is electrically connected to by flexible hard contact connector respectively.

12. lunch box as claimed in claim 8, which is characterized in that the control circuit further includes the power supply being electrically connected successively Socket, electric power management circuit and heating management circuit, the heating management circuit are electrically connected with the central processing unit, institute It states electric power management circuit to be electrically connected with the accumulator group, external electric energy is defeated by the power management electricity by the power outlet Road, the electric power management circuit detect the electricity of the accumulator group and decide whether to charge for the accumulator group, institute Accumulator group is stated for the heating management circuit electric energy or the electric power management circuit to be provided external electric energy directly is conveyed to institute Heating management circuit is stated, electric energy is transferred to first heater and second heater, made by the heating management circuit First heater and second heater fever.

13. lunch box as claimed in claim 12, which is characterized in that the pedestal includes opposite with above-mentioned first shell first Inner casing, first shell accommodate first inner casing, and third is formed between first shell and first inner casing and is held Between emptying, first inner casing is located at close to the side of the inner box.

14. lunch box as claimed in claim 13, which is characterized in that the position by proximal edge of first shell is provided with more A outer support foot is both provided with weight sensor in the outer support foot, to weigh the weight that food is filled in the liner, The weight sensor is electrically connected with the central processing unit.

15. lunch box as claimed in claim 14, which is characterized in that be provided with two on the outside of the first side wall of the pedestal A fat sensor, for measuring the fat content of person under test, the fat sensor electrically connects with the central processing unit It connects.

16. such as claim 6 to 15 any one of them lunch box, which is characterized in that the liner includes metal layer and is set to Coating on the metal layer, the coating make the food placed cavity be readily cleaned cleaning, are placed to being positioned over the food The food of chamber has sterilization and preservation.

17. lunch box as claimed in claim 16, which is characterized in that the material of the coating includes Tao Jing, nano silver and Teflon It is one or more among dragon.

18. lunch box as claimed in claim 17, which is characterized in that the surface setting of the direction liner of the inner box shell There is insulating layer.

19. lunch box as claimed in claim 18, which is characterized in that be provided on the inner box and match with the food placed cavity The inner cover of conjunction, to seal the food in the food placed cavity.

20. lunch box as claimed in claim 19, which is characterized in that covered in described and be provided with venthole, the venthole is used The air pressure inside and external pressure of inner box are balanced in heating process.

21. lunch box as claimed in claim 20, which is characterized in that the inner surface of the inner cover is provided with silver nanowire coating, To sterilization fresh-keeping.

22. such as 1,2,4 to 15,17 to 21 any one of them lunch box of claim, which is characterized in that the lunch box further includes outer Lid, the outer cover make the inner box be closed in the pedestal for covering the one end of the pedestal far from first bottom In first accommodating space, the edge of the outer cover is provided with magnetic absorption member and/or fastener, and the magnetic absorption member and/or the fastener are used In the first side wall that the outer cover is fixed on to the pedestal.

23. lunch box as claimed in claim 22, which is characterized in that the first side wall is set close to one end of the outer cover There is tableware placing groove.

24. such as claim 5 to 15,17 to 21 any one of them lunch boxes, which is characterized in that the material of second heater It is identical with the material of first heater.