CN217565750U - Heat preservation device - Google Patents

Abstract

The application relates to a heat preservation device, which comprises a chopping board, at least one heating part arranged in the chopping board, a detection part arranged on the chopping board and a controller. The supporting surface of the chopping board for supporting the dinner plate forms at least one heating area, and the heating part is used for heating the dinner plate on the heating area. The detection means is arranged to obtain a first characteristic indicative of the extent to which each dish is to be placed on each heating zone. The controller is in control connection with the detection part and each heating part and is used for controlling the heating range of the heating part in the corresponding heating area to be heated and matched with the range occupied by the current dinner plate according to the acquired first characteristic. At the moment, the user only needs to place the dinner plate on the chopping board to realize automatic heating and heat preservation of the dinner plate, and the operation of the user is convenient. Meanwhile, the heating range with corresponding size can be heated according to the size of the dinner plate, thereby being beneficial to energy conservation.

Description

Heat preservation device

Technical Field

The application relates to the technical field of household appliances, in particular to a heat preservation device.

Background

Along with the improvement of living standard of people, more and more people pay attention to diet taste and health, especially in winter, the fried dish is often cooled before eating, the taste is influenced, and the health is not beneficial. And the heat preservation device can preserve heat and heat the fried dish, and the problem of cool dish is solved. However, the existing heat preservation device can perform the function of heating dishes only after being operated by a user, and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

This application has proposed a heat preservation device to the above-mentioned problem that the heat preservation device exists, and this heat preservation device can be according to the corresponding heat-generating body of dinner plate size automatic start, has the convenient and energy-conserving technological effect of use.

An insulation device comprising:

a chopping board, wherein the supporting surface for supporting the dinner plate forms at least one heating area;

the dinner plate is arranged on the heating area of the chopping board and is used for heating the dinner plate on the heating area;

the detection part is arranged on the chopping board and used for acquiring first characteristics representing the occupied range of each dinner plate placed on each heating area;

and the controller is in control connection with the detection part and each heating part and is used for controlling the heating range which is matched with the range occupied by the dinner plate and is heated by the heating part in the corresponding heating area according to the acquired first characteristic.

In one embodiment, each of the heat generating units includes a plurality of heat generating bodies capable of generating heat independently, and the controller is in control connection with each of the heat generating bodies;

the controller is used for controlling all heating bodies which are located in the heating area and are currently within the range occupied by the dinner plate to heat according to the acquired first characteristic.

In one embodiment, all the heat generating bodies of each of the heat generating parts are arranged around the geometric center of the corresponding heating area at intervals in the orthographic projection of the supporting surface.

In one embodiment, the detection part comprises at least one detection part, at least one detection part is arranged in one-to-one correspondence with the heating zones, and each detection part is used for acquiring a first characteristic representing the range of the dinner plate placed on the corresponding heating zone occupied by the corresponding heating zone.

In one embodiment, each detection part comprises a driving part and a detection part, the detection part is used for sensing whether the dinner plate exists on the heating area, the driving part is in transmission connection with the detection part and can drive the detection part to move away from or close to the initial position of the detection part along a set direction, and the controller is in communication connection with the detection part and the driving part;

wherein, when the detecting element in the initial position senses that the dinner plate is present on the heating area, the controller is used for controlling the driving element to drive the detecting element away from the initial position until the detecting element moves to a boundary position where the dinner plate is not sensed any more, so that the detecting element acquires the first characteristic including the position information of the boundary position.

In one embodiment, in an orthographic projection on the supporting surface, the driving member of each detecting member is arranged at a geometric center of the outer contour of the corresponding heat generating portion, and the initial position of the detecting member is arranged close to the geometric center of the outer contour of the heat generating portion.

In one embodiment, the driving member comprises a rotation driving part and an expansion bracket, and the expansion bracket is connected with the detection member and the rotation driving part; the rotation driving part drives the telescopic frame to stretch and retract during rotation so as to drive the detection piece to be far away from or close to the initial position of the detection piece along the set direction.

In one embodiment, each of the detecting parts includes two detecting members, each of the two detecting members is connected to the driving part in a transmission manner and can move synchronously under the driving of the driving part, and the projections of the two detecting members in the set direction are arranged in a staggered manner.

In one embodiment, the chopping board comprises a main body and a heat conducting panel, the main body and the heat conducting panel jointly define an accommodating space, and the heating part and the detection part are both positioned in the accommodating space and attached to the heat conducting panel.

In one embodiment, the thermally conductive panel is made of a light transmissive material.

Above-mentioned heat preservation device, when the dinner plate was placed on the chopping board, the first characteristic of dinner plate can be obtained to the detection part, and the shared scope of dinner plate in the zone of heating is judged according to the first characteristic of obtaining to the controller to the heating range that the control heat-generating body heating and this scope match, thereby keep warm to the dinner plate heating. At the moment, the user only needs to place the dinner plate on the chopping board to automatically heat and preserve the temperature of the dinner plate, and the operation of the user is convenient. Meanwhile, the heating range with the corresponding size can be heated according to the size of the dinner plate, and energy conservation is facilitated.

Drawings

FIG. 1 is a schematic view of an embodiment of an insulation assembly of the present application;

FIG. 2 is a schematic view of a portion of an insulation unit according to some embodiments of the present disclosure;

FIG. 3 is a schematic view of the connection between the detecting member and the driving member in the structure shown in FIG. 2;

FIG. 4 is a flow chart of the operation of the insulating apparatus in some embodiments of the present application.

Description of reference numerals:

100. a heat preservation device; 110. chopping boards; 111. a main body; 112. a heat conductive panel; 120. a heat generating portion; 121. a heating element; 130. a detection section; 131. a detection member; 132. a drive member; 1321. a rotation driving section; 1322. a telescopic frame; 140. a controller; and Q, heating area.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiment in many different forms than those described herein and those skilled in the art will be able to make similar modifications without departing from the spirit of the application and therefore the application is not limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Along with the improvement of living standard of people, heat preservation devices (such as heat preservation devices, heat preservation dining tables and the like) are more and more widely applied because of being capable of preserving heat of meals. The applicant finds that the heating of the meal can be started only after the corresponding switch is manually operated by a user when the existing heat preservation device warms the meal, and the heat preservation device is not intelligent enough and is convenient for the user to use. Meanwhile, the existing heat preservation device adopts whole-area heating, which is not beneficial to energy conservation. In response to these problems with the thermal insulation device, the present application provides an insulation device, as described in detail below.

According to some embodiments of the present disclosure, referring to fig. 1 to 2, the thermal insulation device 100 provided herein includes a cutting board 110, at least one heat generating portion 120 disposed in the cutting board 110, a detecting component 130 disposed on the cutting board 110, and a controller 140. The supporting surface of the chopping board 110 for supporting the dinner plate forms at least one heating area Q, and the heating part 120 is used for heating the dinner plate on the heating area Q. The detection means 130 are intended to acquire a first characteristic representative of the range taken by each dish to be placed on each heating zone Q. The controller 140 is in control connection with the detection part 130 and each heating part 120, and is used for controlling the heating part 120 to heat a heating range matched with the range occupied by the dinner plate according to the acquired first characteristic.

The cutting board 110 may be, but is not limited to, a plate-shaped or block-shaped. The cutting board 110 may be provided independently to form the insulating device 100, may be mounted on a table leg to form an insulating table, or may be combined with other structures to form other forms of insulating devices 100. The specific form of the thermal insulation device 100 is not limited herein.

The supporting surface of the chopping board 110 for supporting the dinner plate has at least one heating zone Q for heating the dinner plate. When only one heating area Q is included, the heating area Q may be a range included in the entire supporting surface of the cutting board 110, or may be a range included in only a portion of the supporting surface. When the heating region Q includes a plurality of heating regions Q, the heating regions Q are arranged at intervals. The cutting board 110 can be provided with indicia (e.g., circles, squares, etc. printed on the cutting board 110 and enclosing all or a portion of the heating zones Q) that indicate the heating zones Q, thereby facilitating accurate placement of the tray by the user.

The heating portions 120 include at least one heating portion, each heating portion 120 is disposed on a heating area Q of the cutting board 110, a user can place a dish on the heating area Q, and the heating portion 120 corresponding to the heating area Q can heat and keep warm the dish in the heating area Q when the dish is heated. The heat generating portion 120 corresponds to the heating area Q, which means an orthographic projection on the supporting surface, and the heat generating portion 120 is located within the range of the heating area Q.

The first characteristic obtained by the detection component 130 is used to characterize the extent to which each dish is placed on the heating zone Q. One detecting part 130 may be provided for one heating area Q, or only one detecting part 130 may be provided to obtain the first characteristic of the dinner plate on all the heating areas Q, which is not limited in particular.

In particular, the detection component 130 may comprise a visual sensor, and the first feature acquired by the detection component 130 may be that the visual sensor is capable of acquiring image information including the range occupied by the meal tray in the heating zone Q. The detecting part 130 may further include a plurality of pressure sensors, and the first characteristic obtained by the detecting part 130 may be position information of all the pressure sensors that can sense the dinner plate. The detecting component 130 can further include a plurality of photoelectric sensors (e.g., infrared sensors), the first characteristic obtained by the detecting component 130 can be position information of the photoelectric sensors that can sense the dish, and of course, the detecting component 130 can also take other ways to obtain the first characteristic that can represent the range occupied by the dish in the heating area Q.

The heating range of the heating part 120 is matched with the occupied range of the dinner plate. The heating region Q of the plate is different for different sizes of plates, and the heating region 120 is different for different heating ranges. The heating range of the heating portion 120 is matched with the range occupied by the dinner plate, the heating range of the heating portion 120 is equivalent to the range occupied by the dinner plate, or the heating range of the heating portion 120 is determined based on the preset heating rule and the range occupied by the dinner plate in the heating area Q where the dinner plate is located. For example, the heating rule is that the heating range of the heating part 120 is 1/2 of the occupied range of the dinner plate, only the middle area of the dinner plate is heated, or the heating rule is that the heating range of the heating part 120 is the whole area of the occupied range of the dinner plate, and the dinner plate can be heated comprehensively.

According to the heat preservation device 100, when the dinner plate is placed on the chopping board 110, the detection part 130 can obtain the first characteristic of the dinner plate, the controller 140 judges the range occupied by the dinner plate in the heating area Q according to the obtained first characteristic, and controls the heating element 121 to heat the heating range matched with the range, so that the dinner plate is heated and preserved. At this time, the user only needs to place the dinner plate on the chopping board 110 to realize automatic heating and heat preservation of the dinner plate, and the user operation is convenient. Meanwhile, the heating range with corresponding size can be heated according to the size of the dinner plate, thereby being beneficial to energy conservation.

In some embodiments, each heat generating unit 120 includes a plurality of heat generating units 121 capable of generating heat independently, and the controller 140 is in control connection with each heat generating unit 121, and the controller 140 is configured to control all heat generating units 121 in the corresponding heating area Q within the range occupied by the dinner plate to generate heat according to the obtained first characteristic.

The heating element 121 may be, but not limited to, a heating wire, a heating rod, a heating block, a heating ring, a heating sheet, and the like, and specifically, may be an infrared heating element 121, a resistive heating element 121, an electromagnetic heating element 121, and the like, and the heating element 121 may be any heating element as long as it can generate heat, and the specific form is not limited in the present application.

The controller 140 and the heating element 121 may be electrically connected or communicatively connected, and is not limited to a specific form of the heating element 121. For example, the heating element 121 may be a heating wire, and the controller 140 may be electrically connected to each heating wire to control whether each heating wire generates heat by controlling the on/off of the heating wire and the power supply. The heating element 121 may also be a heating wire integrated with a circuit breaker, at this time, the heating element 121 is in communication connection with the controller 140 through the circuit breaker, and the controller 140 controls the circuit breaker to switch on and off the heating wire and the power supply by sending a control instruction to the circuit breaker.

Understandably, the heating range in which the heat generating body 120 is heated is determined according to the number and the position of the activated heat generating bodies 121. In this embodiment, the controller 140 controls all the heating elements 121 located in the region occupied by the dish in the heating zone Q to heat the whole heating element 120 in a heating range matching the region occupied by the dish.

In this case, the heat generating elements 121 can generate heat independently, and the heating range of the heat generating portion 120 is realized by controlling all the heat generating elements 121 located in the range occupied by the dish, so that the heat generating portion 120 has a simple structure and is easy to control.

Of course, the manner of generating different heating ranges by the heat generating portion 120 is not limited thereto, and other manners may be adopted in other embodiments. For example, in the above embodiment, each heating element 121 is independently connected to a power supply, and in another embodiment, the circuit of each heating element 121 may be connected to or disconnected from the power supply by electrically connecting or disconnecting one of the heating elements 121 connected to the power supply. When the heat generating element 121 needs to generate heat, it is electrically connected to the heat generating element 121 to which the power supply is connected, and when the heat generating element 121 does not need to generate heat, it is disconnected from the heat generating element 121 to which the power supply is connected.

In some embodiments, referring to fig. 2, optionally, in the orthographic projection of the supporting surface, all the heat generating bodies 121 of each heat generating portion 120 are arranged at intervals around the geometric center of the corresponding heating area Q. The two meanings are that each heating element 121 is arranged around the geometric center of the heating area Q, each heating element 121 can be a heating ring at this time, and each heating element 121 is arranged at intervals, each heating element 121 can be a plurality of concentric rings at this time, and the farther from the geometric center of the heating area Q, the larger the radius of the heating element 121 is.

Since the dish is usually placed in the middle of the heating area Q, the center of the dish is substantially aligned with the center of each heating element 121, and the annular heating elements 121 can uniformly heat the annular position of the dish, which is beneficial to uniform heating of the dish.

Of course, in other embodiments, the arrangement and configuration of the heat generating bodies 121 may be other manners, for example, the heat generating bodies 121 are heat generating sheets, and each heat generating sheet is arranged in a matrix corresponding to the heating area Q.

In some embodiments, the detection components 130 comprise at least one, at least one detection component 130 being arranged in a one-to-one correspondence with the heating zones Q, each detection component 130 being configured to acquire a first characteristic characterizing the extent occupied by a dish placed on a corresponding heating zone Q in the corresponding heating zone Q.

At this time, a detecting part 130 is arranged corresponding to each heating area Q, and each detecting part 130 only obtains the first characteristic of the dinner plate on one heating area Q, so that the obtaining of the first characteristic of the dinner plate on each heating area Q is more convenient.

In some embodiments, referring to fig. 2 and fig. 3, each of the detecting members 130 includes a driving member 132 and a detecting member 131, the detecting member 131 is used for sensing whether the dinner plate exists on the heating area Q, the driving member 132 is drivingly connected to the detecting member 131 and can drive the detecting member 131 to move away from or close to an initial position of the detecting member 131 along a set direction, and the controller 140 is communicatively connected to both the detecting member 131 and the driving member 132, wherein the controller 140 is used for controlling the driving member 132 to drive the detecting member 131 away from the initial position until the detecting member 131 moves to a boundary position where the dinner plate is no longer sensed when the detecting member 131 at the initial position senses that the dinner plate exists on the heating area Q, so that the detecting member 131 obtains a first feature including position information of the boundary position.

The detecting member 131 can move under the driving of the driving member 132, and can sense the dinner plate continuously in the moving process until the dinner plate is beyond the edge position of the dinner plate. The initial position of the detecting element 131 is configured to be sensed by the detecting element 131 in the initial position as long as the dish is placed on the heating area Q, and is not limited by the size of the dish. The boundary position of the detecting member 131 is the position where the detecting member 131 cannot sense the dinner plate for the first time, and both the boundary position and the initial position are in the set direction. Understandably, the boundary position of the detecting element 131 is different when sensing dinner plates with different sizes, and the boundary position of the detecting element 131 is farther away from the initial position when the dinner plate is bigger. The sensing member 131 may be an infrared sensor, a pressure sensor, or the like. When the light emitted by the infrared sensor is reflected back by the dinner plate, the infrared sensor senses the dinner plate. The pressure sensor senses the plate when it is subjected to the pressure exerted by the plate.

The first feature includes position information of the boundary position of the detecting member 131, and after obtaining the position information of the boundary position of the detecting member 131, the occupied range of the dinner plate on the heating area Q can be judged according to the distance from the boundary position to the set reference position. Wherein, the reference position may be a position of a geometric center of the heating region Q, and when the initial position of the detecting member 131 is located at the geometric center of the heating region Q, the reference position may be the initial position of the detecting member 131.

Specifically, the distance from the boundary position to the set reference position is a first distance, and the range occupied by the dinner plate on the heating area Q may be a circular area with the reference position as a circle and the first distance as a radius, or a rectangular area with the reference position as a center and the first distance as 1/2 of the side length, and the specific determination form is not limited.

After determining the range of the plate occupied on the heating area Q, the controller 140 controls the heating unit 120 to generate a heating range corresponding to the range. Specifically, the controller 140 controls all the heat-generating bodies 121 located within the range to generate heat.

In practice, when the dish is sensed by the detecting part 130 located at the initial position, the controller 140 controls the driving part 132 to drive the detecting part 131 to move in the set direction until the detecting part 130 moves to the boundary position where the dish is no longer sensed. The controller 140 then determines the extent to which the dish occupies the heating zone Q based on the boundary position and controls the heat generating portion 120 to generate a heating range adapted to that extent.

Of course, after the sensing member 131 moves to the boundary position, the driving member 132 may drive the sensing member 131 to move reversely in the set direction and return to the initial position under the control of the controller 140.

At this time, the controller 140 acquires the edge position of the dinner plate by controlling the driving member 132 to drive the detection part 130 to move, and it is not necessary to arrange the detection part 130 at a plurality of positions of the heating area Q of the heat generating part 120 to detect the edge positions of the dinner plates of various sizes, which can reduce the cost of the heat retaining device 100.

Of course, the acquisition of the edge position of the meal tray is not limited to the above manner. In other embodiments, a plurality of detecting members 131 may be disposed in the heating zone Q, and the edge position of the dinner plate may be determined according to the position of the detecting member 131 located at the outermost periphery among the detecting members 131 that can sense the dinner plate. For example, when the detecting member 130 is a pressure sensor, the 1 st to nth pressure sensors may be sequentially arranged at intervals in a certain direction (e.g., a radial direction of the circular heating region Q) from a geometric center position thereof within the heating region Q. When the 1 st to the N-1 st pressure sensors can sense the dinner plate and the Nth pressure sensor can not sense the dinner plate, the edge position of the dinner plate can be determined to be between the position of the N-1 st pressure sensor and the position of the Nth pressure sensor. Understandably, the pressure sensor senses the plate when subjected to the pressure exerted on itself by the plate.

In some embodiments, referring to fig. 2, optionally, in an orthographic projection on the supporting surface, the driving element 132 of each detecting element 130 is disposed at a geometric center of an outer contour of the corresponding heat generating portion 120, and the initial position of the detecting element 131 is disposed near the geometric center of the outer contour of the heat generating portion 120.

At this time, the driving member 132 is disposed in the middle region of the heat generating portion 120, while the initial position of the detecting member 131 is close to the geometric center of the outer contour of the heat generating portion 120, and when the detecting member 131 is located at the initial position, the distance between it and the driving member 132 is short, so that the occupied space of the detecting member 130 is small.

In addition, when the detection part 130 is installed, the detection part 130 can be positioned by the geometric center of the heating part 120, so that the detection part 130 can be positioned more accurately, the obtained boundary position is more accurate, the confirmation accuracy of the occupied range of the dinner plate on the heating area Q is further improved, the matching between the heating range generated by the heating part 120 and the actually occupied range of the dinner plate is improved, and the heating efficiency and the heating effect are improved.

In some embodiments, referring to fig. 3, optionally, the driving member 132 includes a rotation driving portion 1321 and a telescopic frame 1322, the telescopic frame 1322 connects the detecting member 131 and the rotation driving portion 1321, and the rotation driving portion 1321 drives the telescopic frame 1322 to extend and retract when rotating, so as to drive the detecting member 131 to move away from or close to its initial position along a set direction.

The rotation driving unit 1321 may be a rotating electric machine, a motor, or the like, and is not limited in particular. The expansion bracket 1322 is expandable and contractible by the driving of the rotation driving unit 1321, and drives the detector 131 to move in the set direction when expanding and contracting. Expansion bracket 1322 may be a combination of a rack and a pinion, and is not limited in particular. Specifically, the rotation driving unit 1321 may be a steering engine.

At this time, the rotation of the rotation driving part 1321 drives the expansion bracket 1322 to expand and contract to move the detecting element 131, and the structure is simple and easy to implement.

Of course, in other embodiments, the driving device may be an electric cylinder, which directly controls the movement of the detecting member 131.

In some embodiments, referring to fig. 3, each detecting component 130 includes two detecting elements 131, each detecting element 131 is connected to the driving element 132 in a transmission manner and can move synchronously under the driving of the driving element 132, and the projections of the two detecting elements 131 in the set direction are arranged in a staggered manner.

The two detection pieces 131 include a first detection piece 131 and a second detection piece 131, projections of the first detection piece 131 and the second detection piece 131 in a set direction are staggered, the first detection piece 131 and the second detection piece 131 move synchronously under the driving of the driving piece 132, when the first detection piece 131 just exceeds the edge position of the dinner plate, the dinner plate cannot be sensed, and the second detection piece 131 does not exceed the edge position of the dinner plate yet and can be sensed, which indicates that the first detection piece 131 and the second detection piece 131 reach the edge position of the dinner plate, so that the edge position can be determined according to the position of the first detection piece 131 or the second detection piece 131. Thus, the edge position of the dining plate and the boundary position of the detecting member 131 can be determined more accurately, and the accuracy of the heating range of the heating portion 120 can be ensured.

In some embodiments, the cutting board 110 includes a main body 111 and a heat conducting panel 112, the main body 111 and the heat conducting panel 112 together define a receiving space, and the heat generating portion 120 and the detecting member 130 are located in the receiving space and attached to the heat conducting panel 112.

The heat conductive panel 112 may be a ceramic panel, a metal panel, a glass panel, or the like, and is not particularly limited as long as heat conduction can be achieved.

In this case, the heat generating unit 120 and the detecting member 130 are directly attached to the heat conducting panel 112, so that the efficiency of heat transfer from the heat generating unit 120 to the heat conducting panel 112 can be improved, and the detection accuracy of the detecting member 130 can be improved by bringing the detecting member 130 closer to the dish.

Preferably, the heat conductive panel 112 is made of a light transmissive material. The transparent heat conducting panel 112 is not only easy to clean, but also transparent, and can be applied to the application of photoelectric sensors such as infrared sensors as the detecting member 131.

Referring to fig. 4, a flowchart of an operation of the heat retaining device 100 according to an embodiment of the present disclosure is shown, in which the detecting element 131 of the heat retaining device 100 is an infrared sensor. The heat preservation device 100 is a heat preservation chopping board. The working process specifically comprises the following steps: the controller receives signals sent by the infrared sensor, the infrared sensor detects whether the dinner plate is placed on the heat preservation chopping board, if the dinner plate moves, the size of the dinner plate is identified, and if the dinner plate does not move, the controller continues to detect whether the dinner plate is placed on the heat preservation chopping board. The controller receives signals of the infrared sensor and controls the number of heating turns of the heating wire according to the size of the dinner plate identified by the infrared sensor, and meanwhile, the infrared sensor returns to the original position. The infrared sensor detects whether the dinner plate leaves the heat preservation chopping board, if so, the heating wire is controlled to stop heating.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. An insulation device, comprising:

a chopping board (110) for supporting the supporting surface of the dish forming at least one heating zone (Q);

at least one heat generating part (120) arranged on the chopping board (110) and used for heating the dinner plate on the heating area (Q);

a detection element (130) provided on the chopping board (110), the detection element (130) being configured to obtain a first characteristic representative of the extent to which each of the dishes occupies on each of the heating zones (Q);

and the controller (140) is in control connection with the detection part (130) and each heating part (120) and is used for controlling the heating range, which is matched with the range occupied by the dinner plate currently, of the heating part (120) in the corresponding heating area (Q) according to the acquired first characteristic.

2. The heat retaining device according to claim 1, wherein each of the heat generating parts (120) includes a plurality of heat generating bodies (121) capable of generating heat independently, and the controller (140) is in control connection with each of the heat generating bodies (121);

the controller (140) is used for controlling all the heating bodies (121) which are positioned in the range occupied by the dinner plate in the corresponding heating area (Q) to heat according to the acquired first characteristic.

3. The heat retaining device according to claim 2, wherein all the heat generating bodies (121) of each of the heat generating portions (120) are arranged at intervals around a geometric center of the corresponding heating area (Q) in an orthographic projection of the support surface.

4. The incubation device according to claim 1, characterized in that the detection means (130) comprise at least one, at least one of the detection means (130) being arranged in a one-to-one correspondence with the heating zones (Q), each of the detection means (130) being adapted to acquire a first characteristic representative of the footprint of the dish placed in the corresponding heating zone (Q).

5. The heat-preserving device according to claim 4, wherein each detecting member (130) comprises a driving member (132) and a detecting member (131), the detecting member (131) is used for sensing whether the dinner plate exists on the heating zone (Q), the driving member (132) is in transmission connection with the detecting member (131) and can drive the detecting member (131) to move away from or close to the initial position of the driving member (131) along a set direction, and the controller (140) is in communication connection with the detecting member (131) and the driving member (132);

wherein the controller (140) is configured to control the driving member (132) to drive the detecting member (131) away from the initial position until the detecting member (131) moves to a position where the boundary of the dish is no longer sensed, when the detecting member (131) in the initial position senses the presence of the dish on the heating zone (Q), so that the detecting member (131) acquires the first characteristic comprising the positional information of the boundary position.

6. Insulation device according to claim 5, characterized in that, in an orthographic projection on the supporting surface, the drive element (132) of each detection element (130) is arranged at the geometric center of the outer contour of the corresponding heat-generating portion (120), and the initial position of the detection element (131) is arranged close to the geometric center of the outer contour of the heat-generating portion (120).

7. The incubation device according to claim 5, wherein the drive member (132) comprises a rotary drive portion (1321) and a telescopic frame (1322), the telescopic frame (1322) connecting the detection member (131) and the rotary drive portion (1321); the rotation driving part (1321) drives the expansion bracket (1322) to expand and contract when rotating so as to drive the detection piece (131) to move away from or close to the initial position of the detection piece along the set direction.

8. The heat preservation device according to claim 5, characterized in that each detection part (130) comprises two detection pieces (131), each detection piece (131) is connected with the driving piece (132) in a transmission manner and can move synchronously under the driving of the driving piece (132), and the projections of the two detection pieces (131) in the set direction are arranged in a staggered manner.

9. The heat preservation device of claim 1, wherein the chopping board (110) comprises a main body (111) and a heat conducting panel (112), the main body (111) and the heat conducting panel (112) jointly define a receiving space, and the heat generating portion (120) and the detecting member (130) are located in the receiving space and attached to the heat conducting panel (112).

10. The thermal insulation device according to claim 9, wherein the thermally conductive panel (112) is made of a light-transmissive material.

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