CN114680647A

CN114680647A - Directional heating device and cooking equipment

Info

Publication number: CN114680647A
Application number: CN202011602081.4A
Authority: CN
Inventors: 袁智
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2022-07-01

Abstract

The application provides a directional heating device and a cooking device. The directional heating device comprises a plurality of heaters which are arranged at intervals, and each heater can radiate energy into the first area in a directional mode; wherein the heat radiation ranges of any two adjacent heaters have an overlapping region. In the technical scheme of this application, can reduce radiant energy through directional heating and scatter and disappear, can effectively improve energy utilization efficiency, reduce the box temperature, practice thrift the energy consumption to can utilize the even characteristic of heating effectively to shorten the heat time of eating the material, make and eat the material even that is heated, be favorable to shortening the preheating time that reduces cooking equipment such as oven or realize exempting from to preheat, it is convenient to use, is favorable to improving the culinary art and experiences.

Description

Directional heating device and cooking equipment

Technical Field

The application relates to the technical field of cooking equipment, in particular to a directional heating device and cooking equipment.

Background

At present, cooking equipment such as an oven generally adopts a heating pipe radiation heating mode to heat food materials, but energy radiated by the heating pipe is diffused, the energy absorbed by the food materials is less, most of the energy is absorbed by a box body, and the problems of low heating efficiency, slow food material roasting, high box body temperature and the like are caused. In the prior art, a scheme of adding a reflecting layer on the inner wall of a box body or a radiant tube is integrated, but the scheme can be only used for one-dimensional arrangement in space, the energy of the radiant tube can only be transmitted in a semi-directional manner, the improvement effect on the energy utilization rate is limited, the problems still exist, and the use convenience is poor.

Disclosure of Invention

According to an embodiment of the present application, it is intended to at least improve one of technical problems existing in the prior art or the related art.

To this end, it is an object of embodiments according to the present application to provide a directional heating apparatus.

Another object according to an embodiment of the present application is to provide a cooking apparatus.

In order to achieve the above object, an embodiment according to a first aspect of the present application provides a directional heating apparatus, including: a plurality of heaters spaced apart from each other, each heater being capable of directionally radiating energy into the first region; wherein the heat radiation ranges of any two adjacent heaters have an overlapping region.

According to an embodiment of the first aspect of the present application, the directional heating device comprises a plurality of heaters. Each heater can radiate energy directionally into the first area, namely the direction and the range of the radiated energy are fixed; the heaters are arranged at intervals, overlapping areas exist in the heat radiation ranges of any two adjacent heaters, so that the radiation energy in the overlapping areas is overlapped, the synthesis of the heating power in a two-dimensional space is realized, the directional heating in the two-dimensional space is realized, and then multiple energy overlapping areas exist in the integral heating area of the directional heating device, so that the energy in the integral heating area is relatively uniform, and the uniform temperature rise of a heated object is facilitated. It can be understood that the radiation energy of a common heater can change along with the change of the radiation distance, for example, the weaker the intensity of the energy at the longer distance, the phenomenon that different parts of the heated object are heated unevenly can be generated, and the directional heating device in the scheme can effectively alleviate the defects.

When directional heating device in this scheme is applied to cooking equipment such as oven, can reduce radiant energy through directional heating and scatter and disappear on the one hand, can effectively improve energy utilization efficiency, reduce the box temperature, practice thrift the energy consumption, on the other hand can effectively shorten the hot time of eating the material, is favorable to realizing exempting from to preheat, and it is convenient to use, and eats the material and can evenly heat up, is favorable to improving culinary art and experience.

In addition, the directional heating device in the above technical solution provided in the embodiments of the present application may further have the following additional technical features:

in the above technical solution, the radiant energy of the plurality of heaters is in a spatial-like normal distribution in the first region.

In this technical scheme, the radiant energy through setting up the heater is space class normal distribution in first region, and the heat-generating body of heater is similar to the pointolite promptly, and the energy of radiation is close to normal distribution in spatial dimension to a plurality of heaters carry out corresponding arranging in two-dimensional space, and then can make the radiant energy of a plurality of heaters superpose in the target area through certain law of arranging, in order to realize directional heating function, thereby reduce the design degree of difficulty, the large-scale production of being convenient for. At the same time, it is also advantageous to provide a relatively uniform transfer of energy throughout the entire radiant area of the directional heating apparatus. It can be appreciated that if the transmission of radiant energy from each heater is relatively random, the difficulty in spatially arranging the plurality of heaters can be greatly increased.

In the above technical solution, the heater includes: a mounting seat; the infrared heating piece is connected to the mounting seat; the heat reflection structure is arranged corresponding to the infrared heating part, the reflection surface of the heat reflection structure faces the infrared heating part, and the heat reflection structure can reflect the energy radiated by the heating part to the first area.

In the technical scheme, the heater comprises a mounting seat, an infrared heating piece and a heat reflection structure. The infrared heating piece is connected to the mounting seat so as to be fixed, and meanwhile, the infrared heating piece can be connected with a corresponding circuit through the mounting seat. The infrared heating device comprises a heat reflection structure, wherein the heat reflection structure is arranged corresponding to the infrared heating part, and the reflection surface of the heat reflection structure faces the infrared heating part, so that when the infrared heating part works, the reflection surface of the heat reflection structure reflects energy radiated to the heat reflection structure to a first area, directional heating is realized, radiation energy loss is reduced, energy in the first area is enhanced, energy utilization efficiency is improved, and heating time is shortened.

In the above technical solution, the heat reflection structure is a paraboloid rotating body, and the inner surface of the heat reflection structure is a specular reflection surface; wherein, at least part of the infrared heating element is arranged in the heat reflection structure.

In the technical scheme, the heat reflecting structure is a paraboloid rotating body, and the inner surface of the heat reflecting structure is a mirror reflecting surface. The infrared heating part is located in the heat reflection structure at least partially through setting up to make the inner surface of heat reflection structure form the encirclement to infrared heating part, thereby can be reflected to first region to the energy that will radiate to the heat reflection structure inner surface, and is the normal distribution in space by the transmission orbit of reflected energy, so that carry out two-dimentional arranging to a plurality of heaters.

In the above technical scheme, the heating element of the infrared heating element is a rotating body, and the heating element and the heat reflection structure are coaxially arranged.

In the technical scheme, the heating body of the infrared heating element is a rotating body, such as a cylinder, so that the heating body is similar to a point light source, and the transmission path of the radiation energy is relatively regular and uniform. The heating body and the heat reflection structure are coaxial, namely the central axis of the heating body coincides with the central axis of the heat reflection structure, so that the heating body and the heat reflection structure can be matched with each other, the focusing degree of the heater can be adjusted by adjusting the size and the relative position of the heat reflection structure and the heating body, directional focusing heating is realized, further promotion of heating efficiency is facilitated, and heating uniformity is enhanced.

In the above technical solution, the plurality of heaters are arranged in a plurality of rows, and the plurality of heaters in each row are arranged at equal intervals.

In the technical scheme, the heaters are arranged in multiple rows, so that the heaters are arranged on a two-dimensional space, and the radiant energy of the heaters can be directionally transmitted to the target area. The heaters in each row are arranged at equal intervals, so that the intervals between any two adjacent heaters are the same, and the difficulty of the arrangement mode is reduced.

In the above technical solution, a connecting line between the center points of any two adjacent heaters in the same row and the center point of one heater in the adjacent row forms a regular triangle.

In the technical scheme, the central points of any two adjacent heaters in the same row and one heater in the adjacent row are sequentially connected, the formed shape is a regular triangle, so that the row spacing between the two adjacent rows of heaters is equal, and the spacing between the two adjacent heaters in different rows is the same as the spacing between the two adjacent heaters in the same row, so that the multiple rows of heaters form an array which is uniformly distributed as a whole, on one hand, the energy transmission of the whole radiation area of the directional heating device is favorably improved, on the other hand, the distribution mode of the multiple heaters can be further simplified, and the processing and the assembly are convenient. The space between two adjacent heaters can be set according to specific heating requirements.

In the above technical solution, a connection line between the central point of any two adjacent heaters in the same row and the central point of one heater in the adjacent row forms an isosceles right triangle, and the central points of two adjacent heaters in the same row are located on the oblique side of the isosceles right triangle.

In this technical scheme, two heaters that arbitrary adjacent in same row and a heater in the adjacent row, the respective central point of above-mentioned three heater is the line in proper order, the shape that forms is isosceles right triangle, and wherein lie in two heaters of same row and be located isosceles right triangle's bevel edge respectively, it is the same to make two rows of adjacent heaters's row interval, and the size of row interval equals half of the interval between two adjacent heaters in same row, thereby multirow heater can form the array of a whole relative even arrangement, and arrange comparatively compactly, can set up the heater of more quantity in limited space, be favorable to improving radiant energy's intensity. Wherein, the space size between two adjacent heaters in the same row can be set according to the specific heating requirement.

In the technical scheme, the heaters are divided into a plurality of groups, and the heat radiation ranges of the heaters in the same group correspond to the same heating area; wherein the operating states of the heaters in different groups are independent of each other.

In the technical scheme, the plurality of heaters are divided into a plurality of groups, and the radiation ranges of the plurality of heaters in the same group correspond to the same heating area, so that the heaters in different groups can respectively perform directional heating on different heating areas, and the target area can be subdivided into a plurality of different heating areas to respectively perform heating treatment. The operation states of the heaters in different groups are set to be independent from each other, that is, the heaters in different groups can be controlled independently, for example, only some groups of heaters can be operated, and the heaters in the other groups can be turned off, or multiple groups of heaters can be operated simultaneously, but the heating parameters (such as heating power and heating time duration) of each group are different. When directional heating device is applied to cooking equipment such as oven, can heat different types of edible material simultaneously, perhaps heat respectively the different regions of same edible material to satisfy different heating demands, realize the subregion heating, further improved heating efficiency, it is more convenient to use.

Embodiments of a second aspect of the present application provide a cooking apparatus comprising: a box body, wherein an accommodating chamber is formed in the box body; at least one directional heating device of the above-mentioned embodiment of the first aspect is disposed in the case for radiating energy into the accommodation chamber.

According to an embodiment of the second aspect of the present application, a cooking apparatus comprises a cabinet and at least one directional heating device of any one of the embodiments of the first aspect described above. An accommodating chamber is formed in the box body and used for accommodating food materials. The directional heating device is arranged in the box body to directionally heat the food materials. The cooking device includes, but is not limited to, an oven, and may also be other devices that need to be heated for cooking. The number of the directional heating devices can be one or more; the installation position of the directional heating apparatus is not limited to the top or the side of the receiving chamber.

The cooking equipment in the scheme can realize directional heating, so that the radiation energy loss is reduced, the energy utilization efficiency is improved, the box body temperature is reduced, the energy consumption is saved, meanwhile, the cooking equipment can also effectively shorten the heating time of food materials, the preheating-free operation is favorably realized, and the use is convenient; in addition, when the cooking equipment heats the food materials, the temperature of the food materials can be uniformly increased, and the cooking experience can be improved.

In addition, the cooking apparatus in this aspect further has all the advantages of the directional heating device in any one of the embodiments of the first aspect, and details are not repeated here.

Additional aspects and advantages of the embodiments of the application will be set forth in part in the description which follows or may be learned by practice of the application.

Drawings

The above and/or additional aspects and advantages of embodiments of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 shows a schematic view of a directional heating apparatus according to one embodiment of the present application;

FIG. 2 shows a schematic of an energy distribution of a heater according to an embodiment of the present application;

FIG. 3 shows a power spatial composition diagram of a directional heating apparatus according to an embodiment of the present application;

FIG. 4 illustrates a partial cross-sectional view of a heater according to one embodiment of the present application;

FIG. 5 shows a schematic view of a heater according to an embodiment of the present application;

FIG. 6 shows a schematic diagram of a partial structure of a heater according to an embodiment of the present application;

FIG. 7 shows a schematic view of a directional heating apparatus according to an embodiment of the present application;

FIG. 8 shows a schematic view of a directional heating apparatus according to one embodiment of the present application;

FIG. 9 shows a schematic view of a directional heating apparatus according to an embodiment of the present application;

FIG. 10 shows a schematic view of a directional heating apparatus according to one embodiment of the present application;

FIG. 11 shows a schematic diagram of a cooking apparatus according to an embodiment of the present application;

FIG. 12 shows an exploded schematic view of a cooking apparatus according to an embodiment of the present application;

fig. 13 illustrates a perspective view of a cooking apparatus according to an embodiment of the present application.

Wherein, the correspondence between the reference numbers and the names of the components in fig. 1 to 13 is as follows:

the heating device comprises a directional heating device 1, a heater 11, a 111 mounting seat, an infrared heating element 112, a 1121 heating element, a 113 heat reflection structure, cooking equipment 2, a 21 box body, a 211 accommodating chamber, a 212 top plate, a 22 storage rack, a 231 first heating area and a 232 second heating area.

Detailed Description

In order that the above objects, features and advantages of the embodiments according to the present application may be more clearly understood, embodiments according to the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth to provide a thorough understanding of embodiments according to the present application, however, embodiments according to the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

Directional heating apparatuses and cooking apparatuses according to some embodiments of the present application are described below with reference to fig. 1 to 13.

Example one

In the present embodiment, a directional heating apparatus 1 is provided, and the directional heating apparatus 1 includes a plurality of heaters 11.

As shown in fig. 1, a plurality of heaters 11 are provided at intervals from one another; each heater 11 has a fixed heat radiation area, i.e., a first area into which the heater 11 can directionally radiate energy to heat an object within the first area. Among them, in a plurality of heaters 11, the heat radiation range of any two adjacent heaters 11 has an overlapping region, so that the radiation energy in the overlapping region is overlapped, and the synthesis of the heating power on the two-dimensional space is realized, so that a plurality of energy overlapping regions appear in the overall heating region of the directional heating device 1 by the combined action of the plurality of heaters 11, and thus the directional heating of the object in the region is realized.

It can be understood that the radiation energy of the general heater 11 is weakened as the radiation distance is longer, and the phenomenon of uneven heating of different parts of the heated object is easily generated, and the directional heating device 1 in the present embodiment can directionally heat the object in the heating area, so that the energy in the whole heating area is relatively uniformly transmitted to the heated object, which is beneficial to promoting the uniform temperature rise of the heated object.

Especially, when directional heating device 1 in this embodiment is applied to cooking equipment such as oven, can reduce radiant energy through directional heating and scatter and disappear, can effectively improve energy utilization efficiency, reduce the box temperature, practice thrift the energy consumption to can utilize the even characteristic of heating effectively to shorten the heating time of eating the material, make to eat the material and be heated evenly, be favorable to reducing the preheating time of oven or realize exempting from to preheat, it is convenient to use, is favorable to improving cooking experience.

Example two

The embodiment provides a directional heating device 1, which is further improved on the basis of the first embodiment.

As shown in fig. 1 and 2, the heating element 1121 of the heater 11 is similar to a point light source, and the radiation energy of the heater 11 is in a spatial quasi-normal distribution in the first region, that is, the radiation energy of the heater 11 is close to a normal distribution in a three-dimensional space range, so that the distribution of the radiation energy of the heater 11 is relatively regular, so as to facilitate corresponding arrangement of a plurality of heaters 11 in a two-dimensional space.

Generally, the distribution of the radiation energy of the general heaters 11 is relatively scattered, the spatial arrangement of the heaters 11 is irregular, and the effect of the stacked radiation energy of the heaters 11 has great uncertainty, thereby increasing the difficulty of design and arrangement. The directional heating device 1 in this embodiment can reasonably arrange the heaters 11 according to the energy distribution form of the heaters 11, as shown in fig. 3, the radiation energy of the heaters 11 is reasonably superposed in the overall heating area, so that the finally formed heating power in the power synthesis area is relatively uniform, the directional heating function is realized, the design difficulty is reduced, and the large-scale production is facilitated.

EXAMPLE III

The embodiment provides a directional heating device 1, and is further improved on the basis of the second embodiment.

As shown in fig. 1 and 4, the heater 11 specifically includes a mounting seat 111, an infrared heating element 112, and a heat reflecting structure 113. The infrared heating element 112 is connected to the mounting base 111 to fix the infrared heating element 112 through the mounting base 111, and meanwhile, the infrared heating element 112 is connected to a corresponding line through the mounting base 111 to provide electric energy required by the operation of the infrared heating element 112. The heat reflection structure 113 is disposed corresponding to the infrared heating element 112, and a reflection surface of the heat reflection structure 113 faces the infrared heating element 112.

When the infrared heating element 112 works, the energy radiated to the heat reflecting structure 113 can be reflected to the first area by the reflecting surface of the heat reflecting structure 113, and the energy in the first area is in the similar normal distribution, so that the energy radiated by the heaters 11 is mutually superposed, the heating power is synthesized, and further the directional heating is realized. Meanwhile, the heat reflection structure 113 can reduce the dissipation of radiation energy, thereby improving the energy utilization efficiency and shortening the heating time.

Example four

The embodiment provides a directional heating device 1, which is further improved on the basis of the third embodiment.

As shown in fig. 4 and 5, the heat reflection structure 113 is a paraboloidal rotating body, such as a reflecting cover, wherein the inner surface of the heat reflection structure 113 is a specular reflection surface for reflecting radiant energy. At least part of the infrared heating element 112 is located in the heat reflection structure 113, so that the inner surface of the heat reflection structure 113 forms an enclosure for at least part of the structure of the infrared heating element 112, so as to reflect the radiation energy of the infrared heating element 112 through the specular reflection of the inner surface, and transmit the radiation energy to the first area, so that the radiation energy of the heaters 11 is in a spatial normal distribution, and the heaters 11 are two-dimensionally arranged. When the heating element 1121 of the infrared heating element 112 is entirely located in the heat reflecting structure 113, the energy dissipation can be further reduced.

Further, as shown in fig. 5 and 6, the heating element 1121 of the infrared heating element 112 is a rotating body, such as a cylinder, so that the heating element 1121 is similar to a point light source, and the transmission path of the radiant energy is relatively regular and uniform. The heat-generating body 1121 and the heat-reflecting structure 113 are coaxially arranged, that is, the central axis of the heat-generating body 1121 coincides with the central axis of the heat-reflecting structure 113, so that the heat-generating body 1121 and the heat-reflecting structure 113 can be matched with each other to realize focusing, the focusing degree of the heater 11 can be adjusted by adjusting the sizes and relative positions of the heat-reflecting structure 113 and the heat-generating body 1121, directional focusing heating is realized, the heating efficiency is further promoted, and the heating uniformity is enhanced. The infrared heating element 112 may be an infrared bulb, and a tungsten wire, a halogen wire, or a carbon fiber wire may be wound to form a spring-like structure as the heating element 1121.

EXAMPLE five

The plurality of heaters 11 of the directional heating apparatus 1 are arranged in a plurality of rows such that the plurality of heaters 11 are arranged in a two-dimensional space to enable the radiation energy of the plurality of heaters 11 to be directionally transmitted to the heating region. The heaters 11 in each row are arranged at equal intervals, that is, the intervals between any two adjacent heaters 11 are the same, so that the difficulty of the arrangement mode is reduced.

Specifically, in an arrangement of the present embodiment, as shown in fig. 7, the central points of any two adjacent heaters 11 in the same row and one heater 11 in the adjacent row are sequentially connected, and the formed shape is an equilateral triangle, that is, the side lengths of three sides of the equilateral triangle are all a, and the lengths are equal. In the multiple rows of heaters 11, the row spacing between two adjacent rows of heaters 11 is equal, and the spacing between two adjacent heaters 11 in different rows is the same as the spacing between two adjacent heaters 11 in the same row, so that the multiple rows of heaters 11 of the formed directional heating device 1 form an array which is uniformly arranged as a whole, which is beneficial to improving the uniformity of energy of the whole radiation area of the directional heating device 1, and meanwhile, the arrangement mode of the multiple heaters 11 can be further simplified, so that the processing and the assembly are convenient. The distance between two adjacent heaters 11 can be set according to specific heating requirements, and the side length a of the regular triangle corresponds to the distance.

In another arrangement of the present embodiment, as shown in fig. 8, the central points of any two adjacent heaters 11 in the same row and one heater 11 in the adjacent row are sequentially connected to form an isosceles right triangle, and the two heaters 11 in the same row are respectively located on the oblique sides of the isosceles right triangle. The side length of the hypotenuse of the isosceles right triangle is b, and the side lengths of the two right-angle sides are c. The row spacing of two adjacent rows of heaters 11 is the same, and the size of row spacing equals half of the spacing between two adjacent heaters 11 in the same row, namely b/2, so that the multi-row heaters 11 of the formed directional heating device 1 can form an array which is relatively uniformly arranged integrally, the arrangement is compact, a larger number of heaters 11 can be arranged in a limited space, and the improvement of the intensity of radiant energy is facilitated. The distance between two adjacent heaters 11 in the same row can be set according to specific heating requirements, and the side lengths b and c of the isosceles right triangle correspond to the distance.

The arrangement of the heaters is not limited to the two arrangements in the embodiment, and may be arranged according to other arrangements.

A specific embodiment of the above-described directional heating apparatus 1 is provided below:

as shown in fig. 4, 5 and 9, the directional heating apparatus 1 includes 13 heaters 11, and each heater 11 has the same structure. Wherein, in order to obtain uniform heating power, the heating power of the 8 heating units on the outer ring is 1.2 times to 1.5 times that of the 5 heating units on the inner ring.

The heater 11 includes a heat reflection structure 113, an infrared heating element 112 and a mounting base 111, wherein the heat reflection structure 113 is a reflective cover, and the infrared heating element 112 is an infrared bulb. The inner surface of the reflection cover has a mirror reflection characteristic, and the structure should match with the size of the heating element 1121 inside the infrared bulb. To facilitate installation of the infrared bulb, the infrared bulb connector takes the form of a standard interface of IEC (International Electrotechnical Commission). The infrared bulb joint is made into a standard form of G6.35mm, and the mounting seat 111 also adopts a standard mounting seat 111 of G6.35mm.

As shown in fig. 5, the reflection housing includes two parts, an upper part is a parabolic rotation body, a lower part is a cylinder, and the upper part and the lower part are coaxially arranged. The upper part paraboloid rotary body is relied on to realize the directional reflection of the radiant energy of the heating body 1121. The heating element 1121 of the infrared bulb is a spring body around which a heating wire is wound, and can be regarded as a cylindrical heating element 1121 approximately. The radius of the heating element 1121 is r, and the parabolic equation of the upper half part of the reflector is 2py ═ (x-r)²Wherein p/2 is the parabolic focal length. The central plane of the bulb heating element 1121 coincides with the focal plane of the upper half parabolic rotating body. The cylinder size of the lower half part of the reflecting cover corresponds to the size of the lamp holder and the size of the bulb, and the lamp holder and the bulb can be placed into the reflecting cover.

The arrangement of the heaters 11 of the directional heating device 1 is shown in fig. 9, wherein the central points of any two adjacent heaters 11 in the same row and one heater 11 in the adjacent row are sequentially connected to form an isosceles right triangle, and the two heaters 11 in the same row are respectively located on the oblique sides of the isosceles right triangle. The side length of the hypotenuse of the isosceles right triangle is b, the side lengths of the two right-angle sides are c, and specifically, b is 100 mm. The two adjacent rows of heaters 11 have the same row spacing, and the row spacing is equal to half of the spacing between two adjacent heaters 11 in the same row, i.e. b/2 is 50mm, so that the multiple rows of heaters 11 of the formed directional heating device 1 can form an array with relatively uniform arrangement as a whole.

EXAMPLE six

The plurality of heaters 11 of the directional heating apparatus 1 are divided into a plurality of groups. Specifically, as shown in fig. 10, the total number of heaters 11 is sixteen, divided into two groups: a first group and a second group, each group including eight heaters 11 and being distributed in two rows. The radiation ranges of the heaters 11 in the same group correspond to the same heating area, the first group of heaters 11 jointly acts on the first heating area 231, and the second group of heaters 11 jointly acts on the second heating area 232, so that the first heating area 231 and the second heating area 232 are respectively subjected to directional heating, and the partition heating treatment is realized.

The operation states of the heaters 11 in the different groups are independent of each other, and the first group of heaters 11 and the second group of heaters 11 may be controlled separately, for example, the second group of heaters 11 is turned off when the first group of heaters 11 is operated, or the first group of heaters 11 and the second group of heaters 11 may be operated simultaneously, but the respective heating parameters (such as heating power and heating time duration) are different.

Of course, the number of groups of heaters 11 in the present embodiment may be other number than two.

When directional heating device 1 in this embodiment is applied to cooking equipment such as oven, can heat different types of edible material simultaneously, perhaps heat respectively the different regions of same edible material to satisfy different heating demands, realize the subregion heating, further improved heating efficiency, it is more convenient to use.

EXAMPLE seven

In the present embodiment, a cooking apparatus 2 is provided, as shown in fig. 11 and 12, the cooking apparatus 2 includes a box 21 and at least one directional heating device 1 in any one of the above embodiments.

A receiving chamber 211 is formed in the case 21 to receive food materials. The directional heating device 1 is arranged in the box body 21 to directionally heat the food materials. Specifically, the directional heating apparatus 1 is provided on the ceiling 212 of the case 21. When the cooking equipment 2 works, the directional heating can be realized through the directional heating device 1, so that the radiation energy loss is reduced, the energy utilization efficiency is improved, the temperature of the box body 21 is reduced, the energy consumption is saved, meanwhile, the cooking equipment 2 can also effectively shorten the heating time of food materials, the preheating-free operation is favorably realized, and the use is convenient; in addition, when cooking device 2 heats the food material, can make the even intensification of food material, be favorable to improving the culinary art and experience.

Wherein, cooking device 2 is an oven, and further, cooking device 2 can be provided with a plurality of directional heating devices 1 at the same time.

The cooking device 2 is not limited to the oven in the present embodiment, and may be other devices that need heating and cooking. The installation position of the directional heating apparatus 1 is not limited to the top of the accommodation chamber 211, and may be provided on a side plate or other position of the cabinet 21.

In addition, the cooking apparatus 2 in this embodiment has all the advantages of the directional heating device 1 in any one of the above embodiments, and will not be described herein again.

A specific embodiment of a cooking apparatus 2 is provided below:

as shown in fig. 11 to 13, the cooking apparatus 2 is embodied as an oven, and includes a box 21 and the directional heating device 1 in any of the above embodiments. An accommodating chamber 211 is formed in the box body 21, and a shelf 22 is disposed in the accommodating chamber 211 and used for holding food materials. The directional heating device 1 is provided on the top plate 212 of the box 21 to directionally heat the food material.

As shown in fig. 1, the directional heating apparatus 1 includes a plurality of heaters 11. The plurality of heaters 11 are arranged at intervals; each heater 11 has a fixed heat radiating area, i.e., a first area into which the heater 11 is capable of directionally radiating energy to heat an object within the first area. Among them, in a plurality of heaters 11, the heat radiation range of any two adjacent heaters 11 has an overlapping region, so that the radiation energy in the overlapping region is overlapped, and the synthesis of the heating power on the two-dimensional space is realized, so that a plurality of energy overlapping regions appear in the overall heating region of the directional heating device 1 by the combined action of the plurality of heaters 11, and thus the directional heating of the object in the region is realized.

As shown in fig. 4, the heater 11 specifically includes a mounting seat 111, an infrared heat generating member 112, and a heat reflecting structure 113. The infrared heating element 112 is connected to the mounting base 111 to fix the infrared heating element 112 through the mounting base 111, and meanwhile, the infrared heating element 112 is connected to a corresponding line through the mounting base 111 to provide electric energy required by the operation of the infrared heating element 112. The heat reflection structure 113 is disposed corresponding to the infrared heating element 112, and a reflection surface of the heat reflection structure 113 faces the infrared heating element 112. When the infrared heating element 112 works, the energy radiated to the heat reflecting structure 113 can be reflected to the first area by the reflecting surface of the heat reflecting structure 113, and the energy in the first area is in the similar normal distribution, so that the energy radiated by the plurality of heaters 11 is mutually superposed, the heating power is synthesized, and the directional heating is realized. Meanwhile, the heat reflection structure 113 can reduce the dissipation of radiation energy, thereby improving the energy utilization efficiency and shortening the heating time.

As shown in fig. 4 and 5, the heat reflection structure 113 is a paraboloidal rotating body, such as a reflecting cover, wherein the inner surface of the heat reflection structure 113 is a specular reflection surface for reflecting radiant energy. The infrared heating element 112 is located in the heat reflection structure 113, so that the inner surface of the heat reflection structure 113 forms an enclosure for at least part of the structure of the infrared heating element 112, so as to reflect the radiation energy of the infrared heating element 112 through the specular reflection surface of the inner surface, and transmit the radiation energy to the first area, so that the radiation energy of the heaters 11 is in a spatial normal distribution, and the heaters 11 are two-dimensionally arranged.

Further, as shown in fig. 5 and 6, the infrared heating element 112 is an infrared bulb, the heating element 1121 is a spring-like structure wound by a tungsten wire, a halogen wire or a carbon fiber wire, and the heating element 1121 is a cylinder, so that the heating element 1121 is similar to a point light source, and the transmission path of the radiation energy is relatively regular and uniform. The heat-generating body 1121 and the heat-reflecting structure 113 are coaxially arranged, that is, the central axis of the heat-generating body 1121 coincides with the central axis of the heat-reflecting structure 113, so that the heat-generating body 1121 and the heat-reflecting structure 113 can be matched with each other to realize focusing, the focusing degree of the heater 11 can be adjusted by adjusting the sizes and relative positions of the heat-reflecting structure 113 and the heat-generating body 1121, directional focusing heating is realized, the heating efficiency is further promoted, and the heating uniformity is enhanced.

Further, as shown in fig. 5, the inner surface of the reflection cover has a mirror reflection characteristic, and the structure should match the size of the heat generating body 1121 inside the infrared bulb. To facilitate installation of the infrared bulb, the infrared bulb connector takes the form of a standard interface of IEC (International Electrotechnical Commission). The infrared bulb joint is made into a standard form of G6.35mm, and the mounting seat 111 also adopts a standard mounting seat 111 of G6.35mm. The reflector comprises two parts, wherein the upper part is a paraboloid rotating body, the lower part is a cylinder, and the upper part and the lower part are coaxially arranged. The directional reflection of the radiant energy of the heating body 1121 is realized by means of the upper part of the paraboloidal rotary body. The heating element 1121 of the infrared bulb is a spring body wound by a heating wire, and can be regarded as a cylindrical heating element 1121. The radius of the heating element 1121 is r, and the parabolic equation of the upper half part of the reflector is 2py ═ (x-r)²Wherein p/2 is the parabolic focal length. The central plane of the bulb heater 1121 coincides with the focal plane of the upper half parabolic rotation body. The cylinder size of the lower half part of the reflecting cover corresponds to the size of the lamp holder and the size of the bulb, and the lamp holder and the bulb can be placed into the reflecting cover.

As shown in fig. 2, the radiant energy of the heater 11 is in a spatial-like normal distribution in the first region, that is, the radiant energy of the heater 11 is approximately in a normal distribution in the three-dimensional space range, so that the distribution of the radiant energy of the heater 11 is relatively regular, so as to facilitate corresponding arrangement of the plurality of heaters 11 in the two-dimensional space. The directional heating device 1 in this embodiment can reasonably arrange the heaters 11 according to the energy distribution form of the heaters 11, as shown in fig. 3, the radiation energy of the heaters 11 is reasonably superposed in the whole heating area, so that the heating power in the finally formed power synthesis area is relatively uniform, the directional heating function is realized, the design difficulty is reduced, and the large-scale production is facilitated.

Specifically, as shown in fig. 9, the directional heating apparatus 1 includes 13 heaters 11, and each heater 11 has the same structure. Wherein, in order to obtain uniform heating power, the heating power of the 8 heating units on the outer ring is 1.2 times to 1.5 times that of the 5 heating units on the inner ring. Two heaters 11 adjacent to each other in the same row and one heater 11 in the adjacent row, the central points of the three heaters 11 are connected in sequence to form an isosceles right triangle, and the two heaters 11 in the same row are respectively positioned on the oblique sides of the isosceles right triangle. Wherein, the length of side of the hypotenuse of isosceles right triangle is b, and the length of side of two right-angle sides is c, specifically, b equals 100 mm. The two adjacent rows of heaters 11 have the same row spacing, and the row spacing is equal to half of the spacing between two adjacent heaters 11 in the same row, i.e. b/2 is 50mm, so that the multiple rows of heaters 11 of the formed directional heating device 1 can form an array with relatively uniform arrangement as a whole.

In another arrangement of this embodiment, as shown in fig. 7, the central points of any two adjacent heaters 11 in the same row and one heater 11 in an adjacent row are sequentially connected to form a regular triangle, that is, the side lengths of three sides of the regular triangle are all a, and the lengths are equal. In the multiple rows of heaters 11, the row spacing between two adjacent rows of heaters 11 is equal, and the spacing between two adjacent heaters 11 in different rows is the same as the spacing between two adjacent heaters 11 in the same row, so that the multiple rows of heaters 11 of the formed directional heating device 1 form an array which is uniformly arranged as a whole, which is beneficial to improving the uniformity of energy of the whole radiation area of the directional heating device 1, and meanwhile, the arrangement mode of the multiple heaters 11 can be further simplified, so that the processing and the assembly are convenient. The distance between two adjacent heaters 11 can be set according to specific heating requirements, and the side length a of the regular triangle corresponds to the distance.

Further, the plurality of heaters 11 of the directional heating apparatus 1 are divided into a plurality of groups, wherein the heaters 11 in each row are arranged at equal intervals. Specifically, as shown in fig. 10, the total number of heaters 11 is sixteen, divided into two groups: a first group and a second group, each group including eight heaters 11 and being distributed in two rows. The radiation ranges of the heaters 11 in the same group correspond to the same heating area, the first group of heaters 11 jointly acts on the first heating area 231, and the second group of heaters 11 jointly acts on the second heating area 232, so that the first heating area 231 and the second heating area 232 are respectively subjected to directional heating, and the partition heating treatment is realized. The operation states of the heaters 11 in the different groups are independent of each other, and the first group of heaters 11 and the second group of heaters 11 may be controlled separately, for example, the second group of heaters 11 is turned off when the first group of heaters 11 is operated, or the first group of heaters 11 and the second group of heaters 11 may be operated simultaneously, but the respective heating parameters (such as heating power and heating time duration) are different. The food material of different types can be heated simultaneously by the above setting mode, or different regions of the same food material are heated respectively, so that different heating requirements are met, the heating in a partitioning mode is realized, the heating efficiency is further improved, and the use is more convenient.

The following provides a specific embodiment of an oven:

as shown in fig. 13, the oven is composed of several arrays of directional focusing heating units, which can be considered approximately as point light sources. The directional focusing heating units are spatially arranged in a two-dimensional mode, and the directional uniform heating of the baking tray area is realized through the spatial distribution synthesis of heating power. If multiple food materials are distributed on the baking tray, different food materials have different requirements on heating power, the directional radiation unit can be divided into a plurality of groups, each group corresponds to a corresponding area on the baking tray, and the independent partition temperature control heating function of different food materials is realized by adjusting the heating power of each group. The array of directional focused heating elements may be distributed only at the top of the oven. According to the shape and the heating requirement of the food materials, the bottom and the side wall of the oven can be provided with directional focusing heating unit arrays, so that the large food materials can be uniformly heated in all directions.

The directional focusing heating unit consists of an infrared bulb and a reflecting cover, the inner surface of the reflecting cover has the characteristic of mirror reflection, and the reflecting cover is a paraboloid rotating body. The infrared bulb heating element is a cylindrical heating element, and can be wound into a spring-shaped approximate simulation cylindrical heating element by using tungsten wires, halogen wires or carbon fiber wires. The cylindrical heating element is superposed with the axis of the reflector, and the focusing power of the heater is adjusted by adjusting the size of the reflector and the heating element and the position of the heating element on the axis of the reflector, so that the spatial normal distribution of the radiant energy is realized. The spatial synthesis of heating power is realized through the spatial arrangement of a plurality of directional focusing heating units, the directional uniform heating of the system is realized, the functions of quick and uniform baking are realized, the independent partition temperature control function is realized, and food materials with different characteristics can be cooked simultaneously.

Above combine the figure to explain in detail according to the technical scheme of some embodiments of this application, when directional heating device was applied to cooking equipment such as oven, can reduce radiant energy through directional heating and scatter and disappear, can effectively improve energy utilization efficiency, reduce the box temperature, practice thrift the energy consumption to can utilize the even characteristic of heating effectively to shorten the heating time of eating the material, it is even to make to eat the material, be favorable to reducing the preheating time of oven or realize exempting from to preheat, it is convenient to use, be favorable to improving culinary art and experience.

In embodiments according to the present application, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present application can be understood by those of ordinary skill in the art as the case may be.

In the description of the embodiments according to the present application, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the technical aspects of the present application.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the purpose of illustrating preferred embodiments of the present application and is not intended to limit the technical solutions of the present application, and it will be apparent to those skilled in the art that various modifications and variations can be made in the technical solutions of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the technical scheme of the application shall be included in the protection scope of the application.

Claims

1. A directional heating apparatus, comprising:

a plurality of heaters spaced apart from each other, each of the heaters being capable of directionally radiating energy into the first region;

wherein the heat radiation ranges of any two adjacent heaters have an overlapping region.

2. A directional heating apparatus according to claim 1,

the radiant energy of a plurality of the heaters is distributed in a space-like normal distribution in the first area.

3. A directional heating apparatus according to claim 1, wherein the heater comprises:

a mounting seat;

the infrared heating piece is connected to the mounting seat;

the heat reflection structure is arranged corresponding to the infrared heating piece, the reflection surface of the heat reflection structure faces the infrared heating piece, and the heat reflection structure can reflect the energy radiated by the heating piece into the first area.

4. A directional heating apparatus according to claim 3,

the heat reflection structure is a paraboloid rotating body, and the inner surface of the heat reflection structure is a mirror reflection surface;

wherein, at least part of the infrared heating piece is arranged in the heat reflection structure.

5. A directional heating apparatus according to claim 4,

the heating body of the infrared heating piece is a rotating body, and the heating body and the heat reflection structure are coaxially arranged.

6. The directional heating apparatus of claim 2,

the plurality of heaters are arranged in a plurality of rows, and the plurality of heaters in each row are arranged at equal intervals.

7. A directional heating apparatus according to claim 6,

the connecting line of the central points of any two adjacent heaters in the same row and the central point of one heater in the adjacent row forms a regular triangle.

8. A directional heating apparatus according to claim 6,

the connecting line of the central points of any two adjacent heaters in the same row and the central point of one heater in the adjacent row forms an isosceles right triangle, and the central points of two adjacent heaters in the same row are positioned on the oblique sides of the isosceles right triangle.

9. A directional heating apparatus according to claim 2,

the heaters are divided into a plurality of groups, and the heat radiation ranges of the heaters in the same group correspond to the same heating area;

wherein the operating states of the heaters in different groups are independent of each other.

10. A cooking apparatus, characterized by comprising:

a case in which an accommodation chamber is formed;

at least one directional heating apparatus as claimed in any one of claims 1 to 9, provided within the housing for radiating energy into the containment chamber.