CN212211440U

CN212211440U - Heating device

Info

Publication number: CN212211440U
Application number: CN202020220746.4U
Authority: CN
Inventors: 韩志强; 王铭; 李鹏; 李春阳; 姬立胜
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-12-22
Anticipated expiration: 2030-02-27

Abstract

The utility model provides a heating device. The heating device comprises a cylinder body for placing the object to be treated and an electromagnetic wave generating system for generating electromagnetic waves in the cylinder body to heat the object to be treated. The electromagnetic wave generating system includes a plurality of radiating elements for radiating electromagnetic waves and a phase shifter for adjusting directions of the electromagnetic waves radiated from the plurality of radiating elements. The utility model discloses a heating device is provided with a plurality of radiating element and is used for adjusting the looks ware that moves of a plurality of radiating element's electromagnetic wave radiation direction, can make pointed references and carry out accurate heating respectively to each part of pending thing, has alleviateed the local overheated bad phenomenon of ripe even of pending thing, has reduced nutrient composition's loss, has improved the quality of the edible material after unfreezing.

Description

Heating device

Technical Field

The utility model relates to a food processing field especially relates to an electromagnetic wave heating device.

Background

During the freezing process, the quality of the food is maintained, however, the frozen food needs to be thawed before processing or consumption. In order to facilitate the user to thaw the food, the food is generally thawed by the electromagnetic wave heating device.

The electromagnetic wave heating device is used for unfreezing the food, so that the speed is high, the efficiency is high, and the loss of nutritional ingredients of the food is low. However, since the penetration and absorption of water and ice by microwaves are different, and the distribution of the substance in the food is not uniform, the energy absorbed by the melted region is large, and problems such as uneven thawing and local overheating (for example, fat portion of streaky pork, chicken claw portion of chicken, tail portion of fish, etc.) are liable to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome at least one technical defect of prior art, provide an electromagnetic wave heating device.

The utility model discloses a further purpose improves the temperature homogeneity of pending thing.

In particular, the utility model provides a heating device, its characterized in that includes:

a barrel defining a heating chamber for placing an object to be processed; and

an electromagnetic wave generating system including a plurality of radiation units for radiating electromagnetic waves to heat the object to be treated within the heating chamber; and the electromagnetic wave generating system further comprises:

a phase shifter configured to adjust a direction of the electromagnetic waves radiated from the plurality of radiation units.

Optionally, the heating device further comprises:

the temperature sensing device is configured to sense the temperature of the object to be processed corresponding to the plurality of sensing points of the plurality of radiation units; and is

The phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the corresponding radiation unit according to the temperatures of the plurality of sensing points.

Optionally, the phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift to a corresponding region of an adjacent radiation unit having a largest temperature difference when there is a temperature corresponding to the radiation unit that is greater than a temperature corresponding to the adjacent radiation unit and the temperature difference is greater than or equal to a first temperature threshold.

Optionally, the plurality of radiation units include a first radiation unit, a second radiation unit and a third radiation unit which are sequentially arranged; wherein

The phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the second radiation unit to shift to a corresponding region of the third radiation unit when the temperature corresponding to the second radiation unit is greater than the temperature corresponding to the first radiation unit and further greater than the temperature corresponding to the third radiation unit, and the maximum temperature difference is greater than or equal to the first temperature threshold;

when the temperature difference between the temperatures corresponding to the second radiation unit and the third radiation unit is smaller than a second temperature threshold, the phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the second radiation unit to shift to the corresponding region of the first radiation unit when the temperature corresponding to the second radiation unit is larger than the temperature corresponding to the first radiation unit and the temperature difference is larger than or equal to the second temperature threshold; when the temperature corresponding to the second radiation unit is less than or equal to the temperature corresponding to the first radiation unit or the temperature difference is less than the second temperature threshold value, adjusting the direction of the electromagnetic waves radiated by the second radiation unit to radiate to the corresponding area; wherein

The second temperature threshold is less than the first temperature threshold.

Optionally, the temperature sensing device comprises a plurality of temperature sensors and is arranged at the top of the heating chamber; and is

The plurality of radiation units are arranged at the bottom of the heating chamber.

Optionally, the phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift toward a direction close to the object to be processed in a case where there is no object to be processed in the corresponding region of the radiation unit.

The phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the first radiation unit to shift to the corresponding region of the second radiation unit when the corresponding region of the first radiation unit is free of the object to be processed and the temperature difference between the temperature corresponding to the second radiation unit and the temperature corresponding to the third radiation unit is less than a first temperature threshold value.

The phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the first radiation unit to shift to the corresponding region of the second radiation unit and adjust the direction of the electromagnetic wave radiated by the second radiation unit to shift to the corresponding region of the third radiation unit when the corresponding region of the first radiation unit is free of the object to be processed and the temperature difference between the temperature corresponding to the second radiation unit and the temperature corresponding to the third radiation unit is greater than or equal to a first temperature threshold value and less than a third temperature threshold value; and is

The phase shifter is configured to adjust electromagnetic waves radiated by the first radiation unit and the second radiation unit to radiate to corresponding areas of the first radiation unit and the second radiation unit respectively when no object to be processed exists in the corresponding areas and the temperature difference between the temperature corresponding to the second radiation unit and the temperature corresponding to the third radiation unit is larger than or equal to a third temperature threshold value.

Optionally, a plurality of radiation units are arranged linearly within the heating chamber.

Alternatively, the heating chamber is divided into a plurality of imaginary spaces having equal volumes, each of the imaginary spaces being provided with one of the radiation units.

The utility model discloses a heating device is provided with a plurality of radiating element and is used for adjusting the looks ware that moves of a plurality of radiating element's electromagnetic wave radiation direction, can make pointed references and carry out accurate heating respectively to each part of pending thing, has alleviateed the local overheated bad phenomenon of ripe even of pending thing, has reduced nutrient composition's loss, has improved the quality of the edible material after unfreezing.

Further, the utility model discloses a move looks ware and correspond the electromagnetic wave radiation direction that corresponds the radiating element according to the difference in temperature regulation of the regional temperature of a plurality of radiating element correspondence for the distribution of electromagnetic wave is more reasonable at the part that the absorption electromagnetic wave ability of pending thing is strong and the poor part of absorption electromagnetic wave ability, has equalized the heating efficiency of the different parts of pending thing, has further improved the temperature homogeneity of pending thing.

Further, the utility model discloses when there is not pending thing in the corresponding region of radiating element, with the direction skew of this radiating element radiation-out electromagnetic wave to being close to pending thing, on the basis of the temperature homogeneity of guaranteeing pending thing, further improved heating efficiency, avoided the energy of unexpected extravagant.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a heating apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic block diagram of the controller of FIG. 1;

fig. 3 is a schematic layout of a plurality of radiating elements according to an embodiment of the present invention;

fig. 4 is a schematic layout of a plurality of radiating elements according to another embodiment of the present invention;

fig. 5 is a schematic flow chart of a control method for a heating apparatus according to an embodiment of the present invention;

fig. 6 is a schematic flow chart of a control method according to an embodiment of the present invention based on the layout shown in fig. 3;

fig. 7 is a schematic flow chart of a control method based on the layout shown in fig. 4 according to an embodiment of the present invention.

Detailed Description

Fig. 1 is a schematic structural view of a heating apparatus 100 according to an embodiment of the present invention. Referring to fig. 1, the heating apparatus 100 may include a drum 110, a door body, an electromagnetic wave generating system, and a controller 130.

The drum 110 may define a heating chamber for placing the object 170 to be processed, and a front wall thereof may be opened with an access opening for accessing the object 170 to be processed.

The door body may be mounted to the barrel 110 by any suitable means, such as a sliding rail, a hinge, etc., for opening and closing the access opening.

The electromagnetic wave generating system may be at least partially disposed in the cylinder 110 or reach the cylinder 110 to generate electromagnetic waves in the heating chamber to heat the object 170.

The cylinder 110 and the door body can be respectively provided with electromagnetic shielding characteristics, so that the door body is in conductive connection with the cylinder 110 in a closed state to prevent electromagnetic leakage.

The electromagnetic wave generation system may include an electromagnetic wave generation module 120, a power supply module, at least one radiation group, a phase shifter 160, and a switching device 150.

The electromagnetic wave generation module 120 may be configured to generate an electromagnetic wave signal. The power supply module may be electrically connected to the electromagnetic wave generating module 120 to provide electric energy for the electromagnetic wave generating module 120, so that the electromagnetic wave generating module 120 generates an electromagnetic wave signal.

At least one radiation group can be disposed in the cylinder 110 and electrically connected to the electromagnetic wave generating module 120 to generate electromagnetic waves with corresponding frequencies according to the electromagnetic wave signals to heat the object 170 to be processed in the heating chamber.

Each radiation group may include a plurality of radiation units to improve the distribution uniformity of electromagnetic waves in the heating chamber.

In some embodiments, the cylinder 110 may be made of metal to act as a receiver for at least one radiating group. In this embodiment, the barrel 110 itself is the electromagnetic shielding feature of the barrel 110.

In other embodiments, the electromagnetic wave generating system further includes one or more receiving plates disposed opposite the plurality of radiating elements of at least one radiating group and electrically connected to the electromagnetic wave generating module 120. In this embodiment, the inner wall of the cylinder 110 may be coated with a metal coating or attached with a metal mesh or the like as an electromagnetic shielding feature of the cylinder 110.

The phase shifter 160 is configured to independently adjust the directions of the electromagnetic waves radiated from the plurality of radiation units of at least one radiation group, so that the distribution of the electromagnetic waves in the heating chamber is more reasonable, and the heating efficiency and the temperature uniformity of the object 170 to be processed are improved.

The phase shifter 160 may include a plurality of independently controlled phase shifting units respectively connected in series between the electromagnetic wave generating module 120 and the plurality of radiating units of at least one radiating group, and adjust the direction of the electromagnetic wave radiated from the corresponding radiating unit by adjusting the phase of the electromagnetic wave signal.

The switching device 150 is configured to independently switch the plurality of radiating elements of at least one radiating group to avoid undesirable waste of energy.

Fig. 2 is a schematic block diagram of the controller 130 of fig. 1. Referring to fig. 2, the controller 130 may include a processing unit 131 and a storage unit 132. Wherein the storage unit 132 stores a computer program 133, and the computer program 133 is used for implementing the control method of the embodiment of the present invention when being executed by the processing unit 131.

The heating apparatus 100 may further include a temperature sensing device for sensing temperatures of a plurality of sensing points of the object to be processed 170, wherein the plurality of sensing points correspond to the plurality of radiation units of the at least one radiation group. The temperature sensing device may include a plurality of temperature sensors 180.

At least one radiation group may be disposed at the bottom of the heating chamber, and a plurality of temperature sensors 180 may be disposed at the top of the heating chamber to improve accuracy of the temperature of the sensing point detected by the temperature sensors 180 while uniformly heating the object 170 to be processed.

The heating chamber may be divided into a plurality of imaginary spaces having equal volumes, and each of the imaginary spaces may be provided with one radiation unit to further improve the temperature uniformity of the object 170 to be processed.

In particular, the processing unit 131 may be configured to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the corresponding radiation unit according to the temperatures of the plurality of sensing points, so as to more reasonably distribute the electromagnetic wave at a portion of the object 170 to be processed having a strong ability to absorb the electromagnetic wave and a portion of the object 170 having a poor ability to absorb the electromagnetic wave, to equalize the heating efficiency of different portions of the object 170 to be processed, and to improve the temperature uniformity of the object 170 to be processed. The utility model discloses in, the default is every radiating element initial to the regional radiation electromagnetic wave that itself corresponds in every heating cycle.

Specifically, the processing unit 131 may be configured to determine that the temperature of the radiation unit corresponding (sensing point) is higher than the temperature of the adjacent radiation unit, and the temperature difference is greater than or equal to the first temperature threshold value W₁During the adjustment, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift to the corresponding region of the adjacent radiation unit with the largest temperature difference within the adjustable range, so as to reduce the adjustment times and further improve the temperature uniformity of the object 170 to be processed. Wherein the first temperature threshold value W₁Can be 1.5 to 3 ℃, for example, 1.5 ℃, 2 ℃, or 3 ℃.

The processing unit 131 may be further configured to determine the temperature difference between the adjacent radiation with the maximum temperature differenceThe temperature corresponding to the injection unit is less than a second temperature threshold value W₂At this time, the phase shifter 160 is controlled to adjust the electromagnetic wave radiated from the radiation unit to stop shifting to the corresponding region of the aforementioned "adjacent radiation unit having the largest temperature difference" so as to prevent the radiation direction of the electromagnetic wave from being frequently adjusted. Wherein the second temperature threshold value W₂May be less than a first temperature threshold value W₁. Second temperature threshold value W₂Can be at 0.75-1.5 deg.C, such as 0.75 deg.C, 1 deg.C or 1.5 deg.C.

The processing unit 131 may also be configured to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift toward the direction close to the object to be processed 170 or control the switching device 150 to stop the radiation of the electromagnetic wave by the radiation unit in the case where there is no object to be processed 170 in the corresponding region of the radiation unit, so as to avoid an undesirable waste of energy on the basis of ensuring the temperature uniformity of the object to be processed 170.

Fig. 3 is a schematic layout diagram of a plurality of radiating elements according to an embodiment of the present invention. Referring to fig. 3, in some embodiments, the number of radiating groups may be one. The plurality of radiation units of the radiation group can be linearly arranged in the heating chamber, and the heating device 100 with the large aspect ratio of the installation plane of the radiation group is suitable for the radiation group, for example, the aspect ratio is larger than 3/2.

The adjustable direction of the electromagnetic waves radiated by the plurality of radiation units can be the same as the arrangement direction of the electromagnetic waves, so that the distribution of the electromagnetic waves can be adjusted. In the illustrated embodiment, the plurality of radiation units are arranged in the longitudinal direction, and the direction of the electromagnetic waves radiated from the plurality of radiation units is adjustable in the longitudinal direction.

In some further exemplary embodiments, the plurality of radiation units may include a first radiation unit 141, a second radiation unit 142, and a third radiation unit 143 that are sequentially arranged, i.e., the first radiation unit 141, the second radiation unit 142, and the third radiation unit 143 are adjacently disposed, and the second radiation unit 142 is disposed between the first radiation unit 141 and the third radiation unit 143.

The processing unit 131 can be configured to be at the corresponding temperature T of the second radiation unit 142₂Is greater than the corresponding temperature T of the first radiation unit 141₁And is further greater than the temperature T corresponding to the third radiation unit 143₃And the maximum temperature difference is greater than or equal to a first temperature threshold value W₁In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated from the second radiation unit 142 to be shifted toward the corresponding region of the third radiation unit 143, so as to improve the heating efficiency of the corresponding region of the third radiation unit 143 and reduce the temperature difference between the sensing points of the second radiation unit 142 and the third radiation unit 143.

The temperature difference between the corresponding temperatures of the second radiation unit 142 and the third radiation unit 143 is less than the second temperature threshold value W₂Meanwhile, the processing unit 131 may be further configured to be at the temperature T corresponding to the second radiation unit 142₂Is greater than the corresponding temperature T of the first radiation unit 141₁And the temperature difference is more than or equal to a second temperature threshold value W₂In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated from the second radiation unit 142 to be shifted toward the corresponding region of the first radiation unit 141, so as to reduce the temperature difference between the second radiation unit 142 and the sensing point corresponding to the first radiation unit 141; corresponding temperature T of the second radiation unit 142₂Less than or equal to the temperature T corresponding to the first radiation unit 141₁Or the temperature difference is less than the second temperature threshold value W₂In this case, the direction of the electromagnetic wave radiated from the second radiation unit 142 is adjusted to be radiated to its own corresponding region, so as to ensure the temperature uniformity of the object to be processed 170.

In the case that the corresponding region of one or more radiation units of the radiation group is free of the object to be processed 170, the processing unit 131 may be further configured to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the one or more radiation units to be shifted toward the direction close to the object to be processed 170, so as to improve the heating efficiency.

The following describes the technical solution of the embodiment of the present invention shown in fig. 3 in detail by taking only the corresponding region of the first radiation unit 141 without the object 170 to be processed as an example.

The processing unit 131 may be configured to first control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the first radiation unit 141 to be shifted toward the corresponding region of the second radiation unit 142 after determining that the corresponding region of the first radiation unit 141 is free of the object 170 to be processed, so as to improve the heating efficiency.

If the temperature T of the second radiation unit 142 corresponds to₂Temperature T corresponding to third radiation unit 143₃Is less than a first temperature threshold value W₁The processing unit 131 may continue to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the first radiation unit 141 to be shifted toward the corresponding region of the second radiation unit 142.

If the temperature T of the second radiation unit 142 corresponds to₂Temperature T corresponding to third radiation unit 143₃Is greater than or equal to a first temperature threshold value W₁And is less than a third temperature threshold value W₃The processing unit 131 may be configured to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the first radiation unit 141 to be shifted toward the corresponding region of the second radiation unit 142, and to adjust the direction of the electromagnetic wave radiated by the second radiation unit 142 to be shifted toward the corresponding region of the third radiation unit 143, so as to improve the temperature uniformity of the object to be processed 170. Third temperature threshold value W₃It may be 4 to 6 ℃ such as 4 ℃, 5 ℃ or 6 ℃.

If the temperature T of the second radiation unit 142 corresponds to₂Temperature T corresponding to third radiation unit 143₃Is greater than or equal to a third temperature threshold value W₃The processing unit 131 may be configured to control the phase shifter 160 to adjust the electromagnetic waves radiated by the first radiation unit 141 and the second radiation unit 142 to be radiated to their own corresponding regions, respectively, so as to avoid local overheating of the object 170 to be processed.

Fig. 4 is a schematic layout diagram of a plurality of radiating elements according to another embodiment of the present invention. Referring to fig. 4, in other embodiments, the number of radiating groups may be multiple. The adjustable directions of the electromagnetic waves radiated by the radiation units of each radiation group can be the same, so that the control flow is simplified.

The plurality of radiation units of the plurality of radiation groups may be distributed in a matrix form to further improve the temperature uniformity of the object 170 to be processed.

In the illustrated embodiment, each radiation group may include a first radiation unit, a second radiation unit, and a third radiation unit sequentially arranged in the longitudinal direction. Specifically, one longitudinal radiation group may include a first radiation unit 141a, a second radiation unit 142a, and a third radiation unit 143 a. Another longitudinal radiation group may include a first radiation unit 141b, a second radiation unit 142b, and a third radiation unit 143 b. The lateral radiation group may include a first radiation unit 141c, a second radiation unit 142c, and a third radiation unit 143 c.

In some further exemplary embodiments, the plurality of radiation groups may include two longitudinal radiation groups that are disposed at intervals and that can adjust a direction in which the electromagnetic wave is radiated in a longitudinal direction, and one lateral radiation group that is disposed between the two longitudinal radiation groups and that adjusts a direction in which the electromagnetic wave is radiated in a lateral direction, so as to achieve sufficient adjustment of electromagnetic wave distribution within the heating chamber. That is, the arrangement direction of the plurality of radiation units of the longitudinal radiation group is the same as the adjustable direction of the electromagnetic wave radiated by the plurality of radiation units, and the arrangement direction of the plurality of radiation units of the transverse radiation group is perpendicular to the adjustable direction of the electromagnetic wave radiated by the plurality of radiation units.

The processing unit 131 may be configured to determine the temperature T corresponding to the radiation unit in which the lateral radiation group exists_cGreater than the temperature T corresponding to the radiation units of its two adjacent longitudinal radiation groups_a、T_bAnd the maximum temperature difference is more than or equal to a first temperature threshold value W₁In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated by the radiation unit of the transverse radiation group to be shifted to the corresponding region of the radiation unit of the longitudinal radiation group having the largest temperature difference, so as to improve the heating efficiency of the corresponding region of the radiation unit of the longitudinal radiation group having the largest temperature difference and reduce the temperature difference.

For example, at the temperature T corresponding to the radiation unit 141c_c1Greater than the corresponding temperature T of the radiation unit 141a_a1And is further greater than the corresponding temperature T of the radiation unit 141b_b1And the maximum temperature difference is more than or equal to a first temperature threshold value W₁In this case, the processing unit 131 may control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the radiation unit 141c to be shifted toward the region corresponding to the radiation unit 141 b.

The temperature difference between the radiation unit 141c and the radiation unit 141b is less than the second temperature threshold value W₂The processing unit 131 may be further configured to controlThe temperature T of the phase shifter 160 corresponding to the radiation unit 141c_c1Greater than the corresponding temperature T of the radiation unit 141a_a1And the temperature difference is more than or equal to a second temperature threshold value W₂In this case, the direction of the electromagnetic wave radiated by the radiation unit 141c is adjusted to be shifted to the corresponding region of the radiation unit 141a, so as to reduce the temperature difference between the radiation unit 141c and the corresponding sensing point of the radiation unit 141 a; at a temperature T corresponding to the radiation unit 141c_c1Less than the corresponding temperature T of the radiation unit 141a_a1And the temperature difference is less than a second temperature threshold value W₂In the case of (3), the direction of the electromagnetic wave radiated by the radiation unit 141c is adjusted so that the electromagnetic wave is radiated to a region corresponding to itself, thereby ensuring the temperature uniformity of the object to be processed 170.

In some further exemplary embodiments, for longitudinal radiation groups, the processing unit 131 may be configured to operate at a corresponding temperature T of the radiation unit 142a_a2Temperature T greater than radiation element 141a and further greater than radiation element 143a_a3And the maximum temperature difference is more than or equal to a first temperature threshold value W₁In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated from the radiation unit 142a to be shifted toward the corresponding region of the radiation unit 143a, so as to improve the heating efficiency of the corresponding region of the radiation unit 143a and reduce the temperature difference.

The temperature difference between the corresponding temperatures of the radiation unit 142a and the radiation unit 143a is less than the second temperature threshold value W₂The processing unit 131 may be further configured to control the phase shifter 160 at the temperature T corresponding to the radiation unit 142a_a2Greater than the corresponding temperature T of the radiation unit 141a_a1And the temperature difference is more than or equal to a second temperature threshold value W₂In this case, the direction of the electromagnetic wave radiated by the radiation unit 142a is adjusted to be shifted toward the corresponding region of the radiation unit 141a to reduce the temperature difference between the radiation unit 142a and the corresponding sensing point of the radiation unit 141 a; temperature T corresponding to the radiation unit 142a_a2Temperature T of the radiation unit 141a or less_a1Or the temperature difference is less than a second temperature threshold value W₂In this case, the direction of the electromagnetic wave radiated from the radiation unit 142a is adjusted to be radiated to its own corresponding area, so as to ensure the temperature uniformity of the object to be processed 170.

In some further exemplary embodiments, the

radiation units

143a, 143b, and 143c may be located at the edge of the heating chamber.

Among the

radiation units

143a and 143b located at the edge, there are radiation units whose temperatures corresponding to the radiation unit 142c are respectively the highest and the lowest and whose temperature difference is equal to or greater than a first temperature threshold value W₁In this case, the processing unit 131 may be configured to control whether or not the radiation unit having the highest corresponding temperature radiates the electromagnetic wave and a radiation direction of the electromagnetic wave when the electromagnetic wave is radiated, according to a temperature of a second radiation unit adjacent to the radiation unit having the highest corresponding temperature.

Taking the example that the temperatures corresponding to the radiation unit 143b and the radiation unit 142c are respectively the highest and the lowest, the temperature difference between the temperatures corresponding to the radiation unit 143b and the radiation unit 142c is equal to or larger than the first temperature threshold value W₁In this case, the processing unit 131 may be configured such that the temperature difference between the radiation unit 142b and the radiation unit 142c adjacent to the radiation unit 143b is equal to or greater than the first temperature threshold value W₁When the temperature difference between the radiation unit 143b and the sensing point corresponding to the radiation unit 142c is smaller, the switch device 150 is controlled to stop the radiation unit 143b from radiating the electromagnetic wave, and the phase shifter 160 is controlled to adjust the deviation of the direction of the electromagnetic wave radiated by the radiation unit 142b to the corresponding area of the radiation unit 141 b; the temperature difference between the radiation unit 142b and the radiation unit 142c is less than the first temperature threshold value W₁Meanwhile, the phase shifter 160 is controlled to adjust the deviation of the direction of the electromagnetic wave radiated by the radiation unit 143b to the corresponding region of the radiation unit 142b, so as to improve the heating efficiency and reduce the temperature difference between the radiation unit 143b and the radiation unit 142c corresponding to the sensing point.

In the case that the object 170 to be processed does not exist in the corresponding region of the partial radiation unit of one longitudinal radiation group, the processing unit 131 may be configured to control the phase shifter 160 to adjust the direction of the electromagnetic wave radiated by the partial radiation unit to be shifted toward the corresponding region of the other radiation unit of the longitudinal radiation group, so as to improve the heating efficiency while ensuring the temperature uniformity of the object 170 to be processed.

For example, the corresponding area of the radiation unit 141b is free of the object 170 and radiates the sheetThe object 170 to be treated exists in the corresponding regions of the element 142b and the radiation unit 143b, and the treatment unit 131 may be configured to be at the corresponding temperature T of the radiation unit 142b_b2Temperature T corresponding to radiation unit 143b_b3Is less than a first temperature threshold value W₁In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated from the radiation unit 141b to be shifted toward the corresponding region of the radiation unit 142b, so as to improve the heating efficiency while ensuring the temperature uniformity of the object to be processed 170.

The processing unit 131 can also be configured to correspond to the temperature T of the radiation unit 142b_b2Temperature T corresponding to radiation unit 143b_b3Is greater than or equal to a first temperature threshold value W₁And is less than a third temperature threshold value W₃In this case, the phase shifter 160 is controlled to adjust the direction of the electromagnetic wave radiated from the radiation unit 142b to be shifted toward the corresponding region of the radiation unit 143b, so as to improve the heating efficiency while ensuring the temperature uniformity of the object to be processed 170.

The processing unit 131 can also be configured to correspond to the temperature T of the radiation unit 142b_b2Temperature T corresponding to radiation unit 143b_b3Is greater than or equal to a third temperature threshold value W₃In the case of (3), the phase shifter 160 is controlled to radiate the directions of the electromagnetic waves radiated from the

radiation units

141b, 142b, and 143b to their own corresponding regions, respectively, so as to ensure the temperature uniformity of the object to be processed 170.

In the case that there is no object 170 to be processed in the corresponding region of the plurality of radiation units of one longitudinal radiation group, the processing unit 131 may be configured to control the phase shifter 160 to make the directions of the electromagnetic waves radiated by the plurality of radiation units of the longitudinal radiation group respectively radiate to the corresponding region thereof, so as to ensure the temperature uniformity of the object 170 to be processed.

In the case that there is no object 170 to be processed in the corresponding region of one or more radiation units of the lateral radiation group, the processing unit 131 may be configured to control the phase shifter 160 to enable the directions of the electromagnetic waves radiated by the one or more radiation units to be radiated to the corresponding regions thereof, respectively, so as to ensure the temperature uniformity of the object 170 to be processed.

The processing unit 131 may also be configured to control the switching device 150 to stop the radiation unit corresponding to the area without the object 170 to be processed from radiating the electromagnetic waves, so as to save energy.

In some embodiments, if a plurality of radiation units and adjacent radiation units simultaneously generate temperature difference of temperature for each temperature, the temperature difference is greater than or equal to the first temperature threshold value W₁In this case, the processing unit 131 may be configured to determine an adjustment order of the radiation directions of the radiation units according to the magnitude of the temperature difference, and adjust the radiation direction of the radiation unit having the largest temperature difference first, so that the adjustment times may be reduced, the heating efficiency may be improved, and the temperature uniformity of the object to be processed 170 may be further improved, compared to adjusting the radiation directions of a plurality of radiation units at the same time.

Fig. 5 is a schematic flow chart of a control method for the heating apparatus 100 according to an embodiment of the present invention. Referring to fig. 5, the control method for the heating apparatus 100 according to the present invention executed by the controller 130 of any of the above embodiments may include the following steps:

step S502: the temperature of a plurality of sensing points of the object to be processed 170 is sensed, wherein the plurality of sensing points correspond to the plurality of radiation units of the at least one radiation group.

Step S504: and adjusting the direction of the electromagnetic wave radiated by each radiation unit according to the temperature of each radiation unit corresponding to the adjacent radiation unit.

The utility model discloses a control method corresponds the electromagnetic wave radiation direction of radiating element according to the temperature regulation of a plurality of radiating element corresponding sensing point for the distribution of electromagnetic wave is more reasonable at the part that pending thing 170's absorption electromagnetic wave ability is strong and the poor part of absorption electromagnetic wave ability, has equalized the heating efficiency of pending thing 170 different parts, has improved pending thing 170's temperature homogeneity.

Specifically, step S504 may further include the steps of:

judging whether the temperature corresponding to the radiation unit is larger than the temperature corresponding to the adjacent radiation unit and the temperature difference is larger than or equal to a first temperature threshold value W₁Can be 1.5 to 3 ℃, for example, 1.5 ℃, 2 ℃, or 3 ℃.

If so, the direction of the electromagnetic wave radiated by the radiation unit is adjusted to shift to the corresponding area of the adjacent radiation unit with the largest temperature difference, so as to reduce the adjustment times and further improve the temperature uniformity of the object to be processed 170.

In some further embodiments, if there are a plurality of radiation units corresponding to temperatures greater than the temperatures corresponding to their neighboring radiation units and the temperature difference is greater than or equal to the first temperature threshold, the direction of the electromagnetic wave radiated by the radiation unit corresponding to a temperature greater than the temperature corresponding to its neighboring radiation unit and the temperature difference is the largest is first adjusted, which can reduce the number of adjustments, improve the heating efficiency, and further improve the temperature uniformity of the object to be processed 170, compared with adjusting the radiation directions of the plurality of radiation units at the same time.

In some embodiments, if there is no object 170 to be processed in the corresponding region of the radiation unit, the direction of the electromagnetic wave radiated by the radiation unit is adjusted to be shifted toward the object 170 to be processed, or the radiation unit stops radiating the electromagnetic wave, so as to avoid the undesirable waste of energy while ensuring the temperature uniformity of the object 170 to be processed.

Fig. 6 is a schematic flowchart of a control method according to an embodiment of the present invention based on the layout shown in fig. 3 (in the drawings of the present invention, "Y" indicates yes, "and" N "indicates no"). Referring to fig. 6, the control method based on the layout shown in fig. 3 of the present invention may include the following steps:

step S602: it is determined whether there is no object 170 to be processed in the corresponding area of the radiation unit. If yes, go to step S604; if not, go to step S620.

Step S604: if there is no object 170 to be processed in the area corresponding to the first radiation unit 141, the direction of the electromagnetic wave radiated by the first radiation unit 141 is adjusted to be shifted toward the corresponding area of the second radiation unit 142, so as to improve the heating efficiency.

Step S606: sensing the temperature of the plurality of sensing points of the object 170 to be processed, and determining the temperature T corresponding to the second radiation unit 142₂Whether or not it is greater than the temperature T corresponding to the third radiation unit 143₃And the temperature difference is more than or equal to a first temperature threshold valueW₁. If yes, go to step S608; if not, the process returns to step S604.

Step S608: the direction of the electromagnetic wave radiated from the second radiation unit 142 is adjusted to be shifted toward the corresponding region of the third radiation unit 143 to improve the temperature uniformity of the object to be processed 170.

Step S610: sensing the temperature of the plurality of sensing points of the object 170 to be processed, and determining the temperature T corresponding to the second radiation unit 142₂Whether or not it is greater than the temperature T corresponding to the third radiation unit 143₃And the temperature difference is more than or equal to a third temperature threshold value W₃. Wherein the third temperature threshold value W₃It may be 4 to 6 ℃ such as 4 ℃, 5 ℃ or 6 ℃. If yes, go to step S612; if not, the process returns to step S606.

Step S612: the directions of the electromagnetic waves radiated from the first radiation unit 141 and the second radiation unit 142 are adjusted to be radiated to their own corresponding areas, so as to prevent the object to be processed 170 from being locally overheated. (if the radiation group further includes a fourth radiation unit disposed on a side of the third radiation unit 143 away from the second radiation unit 142, after step S608 is executed, it can be determined whether the temperature corresponding to the third radiation unit 143 is greater than or equal to the temperature corresponding to the fourth radiation unit and the temperature difference is greater than or equal to the first temperature threshold W₁If yes, the direction of the electromagnetic wave radiated by the third radiation unit 143 can be adjusted to shift to the corresponding area of the fourth radiation unit, and when there is a temperature difference between the temperatures corresponding to two adjacent radiation units greater than or equal to the third temperature threshold value W₃In the case of (3), each radiation unit is caused to radiate an electromagnetic wave to its own corresponding region. )

Step S620: sensing the temperature of the plurality of sensing points of the object 170 to be processed, and determining the temperature T corresponding to the second radiation unit 142₂Whether or not it is greater than the temperature T corresponding to the first radiation unit 141₁And is further greater than the temperature T corresponding to the third radiation unit 143₃And the maximum temperature difference is more than or equal to a first temperature threshold value W₁Namely, whether the temperature corresponding to the radiation unit positioned in the middle of the adjacent three radiation units is the highest and the maximum temperature difference between the maximum temperature corresponding to the radiation units on the two sides is more than or equal to a first temperature threshold value W is judged₁. If yes, go to step S622;if not, go to step S632.

Step S622: the direction of the electromagnetic wave radiated by the second radiation unit 142 is adjusted to be deviated to the corresponding region of the third radiation unit 143, so that the heating efficiency of the corresponding region of the third radiation unit 143 is improved, and the temperature difference between the second radiation unit 142 and the sensing point of the third radiation unit 143 is reduced.

Step S624: sensing the temperature of the plurality of sensing points of the object 170 to be processed, and determining the temperature T corresponding to the second radiation unit 142₂Temperature T corresponding to third radiation unit 143₃Whether the temperature difference is less than a second temperature threshold value W₂. Wherein the second temperature threshold value W₂May be less than a first temperature threshold value W₁It may be 0.75 to 1.5 ℃ such as 0.75 ℃, 1 ℃ or 1.5 ℃. If yes, go to step S626; if not, the process returns to step S622.

Step S626: sensing the temperature of the plurality of sensing points of the object 170 to be processed, and determining the temperature T corresponding to the second radiation unit 142₂Whether or not it is greater than the temperature T corresponding to the first radiation unit 141₁And the temperature difference is more than or equal to a second temperature threshold value W₂. If yes, go to step S628; if not, go to step S630.

Step S628: the direction of the electromagnetic wave radiated by the second radiation unit 142 is adjusted to be shifted toward the corresponding region of the first radiation unit 141 to reduce the temperature difference between the second radiation unit 142 and the sensing point corresponding to the first radiation unit 141. Return to step S626.

Step S630: the direction of the electromagnetic wave radiated from the second radiation unit 142 is adjusted so that the electromagnetic wave is radiated to its own corresponding region to ensure the temperature uniformity of the object 170 to be processed. Returning to step S620.

Step S632: sensing the temperature of a plurality of sensing points of the object 170 to be processed, and determining whether the temperature T corresponding to the first radiation unit 141 exists₁Is greater than the corresponding temperature T of the second radiation unit 142₂And the temperature difference is more than or equal to a first temperature threshold value W₁And/or the temperature T corresponding to the third radiation unit 143₃Is greater than the corresponding temperature T of the second radiation unit 142₂And the temperature difference is more than or equal to a first temperature threshold value W₁Is determined byWhether the corresponding temperature of the radiation unit at the edge is larger than that of the adjacent radiation unit and the temperature difference is larger than or equal to a first temperature threshold value W₁. If yes, go to step S634; if not, go to step S620.

Step S634: adjusting the temperature T of the first and

third radiation units

141 and 143 corresponding to the second radiation unit 142₂Is not less than a first temperature threshold value W₁The direction of the electromagnetic wave radiated from the radiation unit(s) is shifted toward the corresponding region of the second radiation unit 142 to reduce the temperature difference between the edge and the center of the object to be processed 170.

Step 636: the temperature of the plurality of sensing points of the object 170 to be processed is sensed, and the temperature T corresponding to the adjusted radiation unit and the second radiation unit 142 is determined₂Whether the temperature difference is less than a second temperature threshold value W₂. If yes, go to step S638; if not, go to step S634.

Step S638: the direction of the electromagnetic wave radiated by the adjusted radiation unit is adjusted again, so that the electromagnetic wave is radiated to the corresponding area of the electromagnetic wave, thereby ensuring the temperature uniformity of the object 170 to be processed. Returning to step S620.

Fig. 7 is a schematic flow chart of a control method based on the layout shown in fig. 4 according to an embodiment of the present invention. Referring to fig. 7, the control method based on the layout shown in fig. 4 of the present invention may include the following steps:

step S702: the temperature of a plurality of sensing points of the object to be processed 170 is sensed, and whether the temperature T corresponding to the radiation unit of the transverse radiation group exists or not is judged_cGreater than the temperature T corresponding to the radiation units of its two adjacent longitudinal radiation groups_a、T_bAnd the maximum temperature difference is more than or equal to a first temperature threshold value W₁The case (1). That is, it is determined whether there is a temperature T corresponding to the radiation unit of the lateral radiation group_cMaximum temperature T corresponding to the radiation unit of one adjacent longitudinal radiation group_bLess than the temperature T corresponding to the radiation unit of another adjacent longitudinal radiation group_aAnd the temperature T corresponding to the radiation unit of the transverse radiation group_cIs greater than or equal to a first temperatureThreshold value W₁The case (1). If yes, go to step S704; if not, go to step S720.

Step S704: the direction of the electromagnetic wave radiated by the radiation unit of the transverse radiation group is adjusted to deviate to the corresponding area of the radiation unit of the longitudinal radiation group with the largest temperature difference (namely the radiation unit of the adjacent longitudinal radiation group), so that the heating efficiency of the corresponding area of the radiation unit of the longitudinal radiation group with the largest temperature difference is improved, and the temperature difference is reduced.

Step S706: the temperature of a plurality of sensing points of the object 170 to be processed is sensed, and the temperature T corresponding to the radiation unit of the transverse radiation group is judged_cTemperature T of radiating element of one longitudinal radiating group adjacent to the former_bWhether the temperature difference is less than a second temperature threshold value W₂. If yes, go to step S708; if not, the process returns to step S704.

Step S708: the temperature of a plurality of sensing points of the object 170 to be processed is measured, and the temperature T corresponding to the radiation unit of the transverse radiation group is judged_cWhether or not it is greater than the temperature T of the radiating element of the aforesaid adjacent other longitudinal radiating group_aAnd the temperature difference is more than or equal to a second temperature threshold value W₂. If yes, go to step S710; if not, go to step S712.

Step S710: and adjusting the direction of the electromagnetic waves radiated by the radiation units of the transverse radiation group to deviate from the corresponding area of the radiation units of the other adjacent longitudinal radiation group so as to reduce the temperature difference between the corresponding sensing points of the radiation units of the transverse radiation group and the radiation units of the other adjacent longitudinal radiation group. Return to step S708.

Step S712: the direction of the electromagnetic wave radiated by the radiation unit of the transverse radiation group is adjusted to make the electromagnetic wave radiate to the corresponding area of the electromagnetic wave itself, so as to ensure the temperature uniformity of the object 170 to be processed. Return to step S702.

Step S720: determining whether there is a corresponding temperature T of the radiation unit in the

radiation units

143a and 143b_a3,b3Is the highest temperature in all sensing points, the corresponding temperature T of the radiating element 142c_c2Is the lowest temperature of all sensing points, and the temperature difference between the sensing points is more than or equal to the first temperatureTemperature threshold value W₁The case (1). That is, it is determined whether there is a corresponding temperature T of the radiation unit among the radiation units of the longitudinal radiation group located at the edge of the heating chamber_a3,b3The highest, middle-located radiation unit of the transverse radiation group has a corresponding temperature T of the radiation unit_c2Lowest temperature, and the temperature difference between the highest temperature and the lowest temperature is greater than or equal to a first temperature threshold value W₁. If yes, go to step S722; if not, go to step S730.

Step S722: the temperature T corresponding to the radiation unit adjacent to the radiation unit corresponding to the highest temperature (the second radiation unit of the longitudinal radiation group corresponding to the highest temperature) is judged_a2,b2Corresponding temperature T of the radiation unit 142c_c2Whether the temperature difference is greater than or equal to a first temperature threshold value W₁. If yes, go to step S724; if not, go to step S726.

Step S724: and stopping the third radiation unit of the longitudinal radiation group from radiating the electromagnetic wave, and adjusting the direction of the electromagnetic wave radiated by the second radiation unit of the longitudinal radiation group to deviate from the corresponding area of the first radiation unit of the longitudinal radiation group so as to reduce the temperature difference between the third radiation unit and the second radiation unit of the longitudinal radiation group and the sensing point corresponding to the middle radiation unit of the transverse radiation group. Return to step S702.

Step S726: and adjusting the direction of the electromagnetic wave radiated by the third radiation unit of the longitudinal radiation group to deviate from the corresponding area of the second radiation unit of the longitudinal radiation group so as to improve the heating efficiency and reduce the temperature difference between the third radiation unit of the longitudinal radiation group and the middle radiation unit of the transverse radiation group and corresponding to the sensing point. Return to step S702.

Step S730: judging whether the temperature T corresponding to the second radiation unit in the longitudinal radiation group exists or not_a2,b2Is greater than the corresponding temperature T of the first radiation unit_a1,b1And is further greater than the temperature T corresponding to the third radiation unit_a3,b3And the maximum temperature difference is more than or equal to a first temperature threshold value W₁That is, whether the maximum temperature difference between the maximum temperature corresponding to the central radiation unit and the maximum temperature corresponding to the radiation units on the two sides is larger than or equal to the maximum temperature corresponding to the central radiation unit among the three adjacent radiation units in the longitudinal radiation group is judgedAt a first temperature threshold value W₁The case (1). If yes, go to step S732; if not, the process returns to step S702.

Step S732: the direction of the electromagnetic wave radiated by the second radiation unit of the longitudinal radiation group is adjusted to deviate to the corresponding area of the third radiation unit of the radiation group, so that the heating efficiency of the corresponding area of the third radiation unit of the radiation group is improved, and the temperature difference is reduced.

Step S734: the temperature of a plurality of sensing points of the object to be processed 170 is sensed, and whether the temperature difference between the second radiation unit and the third radiation unit of the longitudinal radiation group is less than a second temperature threshold value W is judged₂. If yes, go to step S736; if not, the process returns to step S732.

Step S736: the temperature of a plurality of sensing points of the object to be processed 170 is sensed, and the temperature T corresponding to the second radiation unit of the longitudinal radiation group is judged_a2,b2Whether it is higher than the temperature T corresponding to the first radiation unit_a1,b1And the temperature difference is more than or equal to a second temperature threshold value W₂. If yes, go to step S738; if not, go to step S740.

Step S738: and adjusting the direction of the electromagnetic wave radiated by the second radiation unit of the longitudinal radiation group to deviate towards the corresponding area of the first radiation unit of the radiation group so as to reduce the temperature difference of the corresponding sensing points of the second radiation unit and the first radiation unit of the longitudinal radiation group.

Step S740: the direction of the electromagnetic wave radiated by the second radiation unit of the longitudinal radiation group is adjusted to make the electromagnetic wave radiate to the corresponding area of the electromagnetic wave itself, so as to ensure the temperature uniformity of the object to be processed 170.

In some embodiments, for the longitudinal radiation group of the embodiment of fig. 4, if there is no object 170 to be processed in the corresponding region of one or more radiation units, the phase shifter 160 and/or the switch device 150 may be controlled with reference to the control methods from step S602 to step S612, so as to improve the heating efficiency and ensure the temperature uniformity of the object 170 to be processed.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A heating device, comprising:

a barrel defining a heating chamber for placing an object to be processed; and

2. The heating device of claim 1, further comprising:

3. The heating device according to claim 2,

the phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift to the corresponding area of the adjacent radiation unit with the largest temperature difference when the temperature corresponding to the radiation unit is larger than the temperature corresponding to the adjacent radiation unit and the temperature difference is larger than or equal to a first temperature threshold value.

4. The heating device according to claim 2,

the temperature sensing device comprises a plurality of temperature sensors and is arranged at the top of the heating chamber; and is

5. The heating device according to claim 1,

the phase shifter is configured to adjust the direction of the electromagnetic wave radiated by the radiation unit to shift toward a direction close to the object to be treated, in a case where there is no object to be treated in the corresponding region of the radiation unit.

6. The heating device according to claim 1,

a plurality of radiating elements are arranged linearly within the heating chamber.

7. The heating device according to claim 1,

the heating chamber is divided into a plurality of imaginary spaces having equal volumes, and each of the imaginary spaces is provided with one of the radiation units.