Thick film heating device and stove

Abstract

The present application provides a thick film heating device, comprising: a thick film heating assembly, comprising a plurality of thick film heating units, each of the thick film heating units being used to heat a corresponding working area; a detection mechanism, being used to detect whether there is an object to be heated in the working area of ​​each thick film heating unit, and outputting a detection signal according to the detection result; a control mechanism, being connected to the thick film heating assembly and the detection mechanism; being used to receive the detection signal of the detection mechanism, and controlling the opening and closing of each thick film heating unit according to the detection signal. The thick film heating device provided by the present application can control the opening and closing of each thick film heating unit according to whether there is an object to be heated in the working area of ​​each thick film heating unit, and can adjust the number and position of the opened thick film heating units according to the size and position of the pot, thereby realizing adaptive adaptation to pots of various sizes.

Description

Technical Field

[0001] The present application relates to the field of heating equipment, and in particular to a thick film heating device and a stove. Background Art

[0002] A cooking device uses electricity, gas, or other energy sources to convert heat into food. To simultaneously use multiple cooking devices, such as multiple pots, a multi-burner stove can be used. These stoves utilize gas, ceramic, or induction cooktops for heating. However, these stoves require corresponding pots, and gas heating systems are complex. Ceramic cooktops heat up slowly, and induction cooktops heat up slowly and unevenly. Summary of the Invention

[0003] In view of this, embodiments of the present application provide a thick film heating device and a stove to solve the technical problem of improving compatibility with cookware.

[0004] To achieve the above objectives, the technical solution of the embodiment of the present application is implemented as follows:

[0005] An embodiment of the present application provides a thick film heating device, comprising: a thick film heating assembly, comprising a plurality of thick film heating units, each of the thick film heating units being used to heat a corresponding working area; a detection mechanism, for detecting whether there is an object to be heated within the working area of ​​each of the thick film heating units, and outputting a detection signal based on the detection result; a control mechanism, connected to the thick film heating assembly and the detection mechanism; and for receiving the detection signal from the detection mechanism, and controlling the opening and closing of each of the thick film heating units respectively according to the detection signal.

[0006] Furthermore, the plurality of thick film heating units are arranged in an array, and predetermined gaps are provided between adjacent thick film heating units.

[0007] Furthermore, the thick film heating unit includes a first heating unit having a first heating power and a second heating unit having a second heating power; in each row and column of the array, the first heating unit and the second heating unit are alternately arranged.

[0008] Furthermore, the detection mechanism includes a plurality of detection units, and the detection units correspond one-to-one to the thick film heating units.

[0009] Furthermore, the detection unit includes a first sensor for detecting whether there is an object to be heated in the corresponding working area of ​​the thick film heating unit.

[0010] Furthermore, the first sensor includes a pressure sensor, and the detection signal is a pressure signal of the corresponding working area of ​​the thick film heating unit.

[0011] Furthermore, the thick film heating device further comprises: a base; a plurality of support members, each support member connecting the base and the thick film heating unit; and the support members corresponding to the thick film heating units on a one-to-one basis.

[0012] Furthermore, the thick film heating device further comprises: an elastic member, which is arranged around the support member, one end of the elastic member is connected to the pressure sensor and the other end is connected to the corresponding thick film heating unit.

[0013] Furthermore, the first sensor comprises a light-sensing sensor, and the detection signal is a light signal corresponding to the working area of ​​the thick film heating unit.

[0014] Furthermore, the thick film heating unit is a transparent thick film unit, and the light sensing sensor is arranged adjacent to the thick film heating unit.

[0015] Furthermore, the thick film heating unit is a non-transparent thick film unit with a through hole, and the light sensor is used to sense light passing through the through hole.

[0016] Furthermore, the thick film heating device further includes: a base; a plurality of support members, each of the support members being connected to the base and the light sensing sensor; and the support members corresponding to the light sensing sensors on a one-to-one basis.

[0017] Furthermore, the first sensor includes a metal sensor, and the detection signal is a metal detection signal of the corresponding working area of ​​the thick film heating unit.

[0018] An embodiment of the present application further provides a stove, which includes any of the thick film heating devices described above.

[0019] The thick film heating device provided in the embodiment of the present application includes a thick film heating assembly, a detection mechanism, and a control mechanism. The thick film heating assembly includes a plurality of thick film heating units, each of which is used to heat a corresponding working area. The detection mechanism is used to detect whether there is an object to be heated within the working area of ​​each thick film heating unit and output a detection signal based on the detection result. The control mechanism is used to receive the detection signal and control the opening and closing of each thick film heating unit based on the detection signal. By dividing the thick film heating assembly into a plurality of thick film heating units, detecting whether there is an object to be heated within the working area of ​​each thick film heating unit to control the opening and closing of each thick film heating unit, so that the thick film heating units with the object to be heated within the working area are turned on, and the thick film heating units without the object to be heated within the working area are turned off. Thus, the thick film heating device can heat cookware of various materials quickly and with good heating uniformity. The number and position of the thick film heating units turned on can be adjusted according to the size and position of the cookware, thereby realizing adaptive heating of various cookware of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of a thick film heating device provided in an embodiment of the present application;

[0021] Figure 2 A cross-sectional view of a thick film heating device provided in an embodiment of the present application;

[0022] Figure 3 A diagram showing an arrangement of thick film heating units provided in an embodiment of the present application;

[0023] Figure 4 A diagram showing another arrangement of the thick film heating unit provided in an embodiment of the present application;

[0024] Figure 5 A schematic diagram of the partial structure of a first thick film heating device provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the partial structure of a second thick film heating device provided in an embodiment of the present application;

[0026] Figure 7 A schematic diagram of the overall structure of a second thick film heating device provided in an embodiment of the present application;

[0027] Figure 8 A schematic diagram of the partial structure of a third thick film heating device provided in an embodiment of the present application;

[0028] Figure 9 A schematic diagram of the overall structure of a third thick film heating device provided in an embodiment of the present application;

[0029] Figure 10 This is a schematic diagram of the partial structure of the fourth thick film heating device provided in an embodiment of the present application.

[0030] Description of Reference Numerals

[0031] 100-thick film heating device; 110-thick film heating assembly; 111-thick film heating unit; 112-first heating unit; 113-second heating unit; 114-through hole; 120-detection mechanism; 121-pressure sensor; 122-light sensor; 123-metal sensor; 130-control mechanism; 140-base; 150-support member; 160-elastic member. DETAILED DESCRIPTION

[0032] The various specific technical features in the various embodiments described in the specific implementation methods can be combined in various ways without contradiction. For example, different implementation methods can be formed by combining different specific technical features. In order to avoid unnecessary repetition, the various possible combinations of the specific technical features in this application will not be described separately.

[0033] In the examples of this application, it should be noted that, unless otherwise specified and limited, the term "connection" should be understood in a broad sense. For example, it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] It should be noted that the terms "first\second" involved in the embodiments of the present application are merely used to distinguish similar objects and do not represent a specific order for the objects. It is understandable that "first\second" can be interchanged with a specific order or sequence where permitted. It should be understood that the objects distinguished by "first\second" can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. The terms "upper", "lower", "horizontal", "vertical" and other words indicating orientation involved in the embodiments of the present application refer to the normal working state of the thick film heating device.

[0035] Thick film is a film layer of a certain thickness created by screen-printing insulating dielectrics, resistors, conductors, protective glazes, and other materials onto a substrate. The film is then sintered at high temperatures. This layer generates heat when energized, thus providing heating. Thick film heating offers advantages such as fast heating speed, uniform heating temperature field, long life, and energy conservation and environmental protection.

[0036] like Figure 1 and Figure 2 As shown, an embodiment of the present application provides a thick film heating device 100 , which includes: a thick film heating component 110 , a detection mechanism 120 and a control mechanism 130 .

[0037] like Figure 2 As shown, the thick film heating assembly 110 includes a plurality of thick film heating units 111, and each thick film heating unit 111 is used to heat the corresponding working area. The working area refers to the heating surface of each thick film heating unit 111 used to fit the object to be heated to heat the object to be heated (for example, the upper surface of each thick film unit) and the space within a preset height above the heating surface. The preset height can be 0 to 10 mm (for example, 1 mm); the preset height can also be 0 mm, in which case the working area refers to the heating surface. The heating surfaces of all thick film heating units 111 can form the same working surface, which can be a flat surface to accommodate flat-bottomed pots such as frying pans and soup pots; or a curved surface to accommodate pots such as woks. The object to be heated includes pots of various materials, shapes and sizes.

[0038] Two adjacent thick film heating units 111 may be in contact or separated by a preset distance, which may be 0 to 50 mm (for example, 5 mm). When two adjacent thick film heating units 111 are separated by a preset distance, the distances between all adjacent thick film heating units 111 may be the same, for example, 5 mm; or they may be different, for example, the distance between some adjacent thick film heating units 111 is 5 mm, and the distance between other adjacent thick film heating units 111 is 10 mm. It is also possible that some adjacent thick film heating units 111 are adjacent, and other adjacent thick film heating units 111 are separated by a preset distance. When two adjacent thick film heating units 111 are connected, two adjacent working areas may be adjacent; when two adjacent thick film heating units 111 are separated by a preset distance, two adjacent working areas may also be separated by a preset distance.

[0039] The detection mechanism 120 is used to detect whether there is an object to be heated within the working area corresponding to each thick-film heating unit 111 and output a detection signal based on the detection result. The detection signal can be two types: one is "yes" and the other is "no". If the object to be heated is detected within the working area of ​​the corresponding thick-film heating unit 111, the detection signal output is "yes"; if the object to be heated is not detected within the working area of ​​the corresponding thick-film heating unit 111, the detection signal output is "no".

[0040] The control mechanism 130 is connected to the detection mechanism 120 and the thick-film heating assembly 110, and is used to receive detection signals from the detection mechanism 120 and control the opening and closing of each thick-film heating unit 111 based on the detection signals. The control mechanism 130 and the detection mechanism 120 can be connected via wires via electrical signals, via light via optical signals, or wirelessly without a physical medium, as long as they can receive the detection signals from the detection mechanism 120. The control mechanism 130 and the thick-film heating assembly 110 can be connected via wires via electrical signals, via light via optical signals, or wirelessly without a physical medium, as long as they can transmit instructions to the thick-film heating assembly 110 to control the opening and closing of the thick-film heating assembly 110.

[0041] The thick film heating device provided in the embodiment of the present application includes a thick film heating assembly, a detection mechanism, and a control mechanism. The thick film heating assembly includes a plurality of thick film heating units, each of which is used to heat a corresponding working area. The detection mechanism is used to detect whether there is an object to be heated within the working area of ​​each thick film heating unit and output a detection signal based on the detection result. The control mechanism is used to receive the detection signal and control the opening and closing of each thick film heating unit based on the detection signal. By dividing the thick film heating assembly into a plurality of thick film heating units, detecting whether there is an object to be heated within the working area of ​​each thick film heating unit to control the opening and closing of each thick film heating unit, so that the thick film heating units with the object to be heated within the working area are turned on, and the thick film heating units without the object to be heated within the working area are turned off. Thus, the thick film heating device can heat cookware of various materials quickly and with good heating uniformity. The number and position of the thick film heating units turned on can be adjusted according to the size and position of the cookware, thereby realizing adaptive heating of various cookware of different sizes.

[0042] like Figure 3 As shown, in some embodiments of the present application, multiple thick film heating units 111 are arranged in an array to further improve the uniformity of heating on the object to be heated during the heating process. Array arrangement refers to a regular arrangement (for example, forming a regular geometric pattern) in two or more directions, so that the distribution of the thick film heating units 111 has regularity, which can further improve the uniformity of heating on the object to be heated on the multiple thick film heating units 111. Specifically, the multiple thick film heating units 111 can be arranged in a rectangular array, that is, the multiple thick film heating units 111 are arranged in a first direction (such as Figure 3 In the X direction (as in the X direction), the thick film heating units 111 are sequentially connected or spaced apart by a preset distance to form a row of thick film heating units 111. The rows of thick film heating units 111 are arranged in a second direction (as in the X direction). Figure 3The thick film heating units 111 are sequentially connected or spaced by a preset distance in the Y direction to form a rectangular array arrangement, and the first direction and the second direction are at right angles; or they can be arranged in a parallelogram array, that is, the plurality of thick film heating units 111 are arranged in a first direction (such as Figure 3 In the X direction (as in the X direction), the thick film heating units 111 are sequentially connected or sequentially spaced by a preset distance to form a row of thick film heating units 111. The rows of thick film heating units 111 are arranged in a second direction (as in the X direction). Figure 3 The arrays are sequentially connected or sequentially spaced by a preset distance in the Y direction to form a parallelogram array arrangement, and the first direction and the second direction form an acute angle; they can also be arranged in a circular array (such as Figure 4 As shown, multiple thick film heating units 111 are sequentially connected or spaced apart by a preset distance in the circumferential direction of the circle to form a circle of thick film heating units 111. Multiple circles of thick film heating units 111 are sequentially connected or spaced apart by a preset distance in the axial direction of the circle to form a circular array arrangement. Optionally, the heating surface area and shape of each thick film heating unit are the same, that is, each thick film heating unit can be identical in terms of geometry and size.

[0043] like Figure 2 As shown, in some embodiments of the present application, a predetermined gap is provided between adjacent thick film heating units 111. The predetermined gap can be 0 to 50 mm, for example, 5 mm. That is, the spacing between adjacent thick film heating units 111 is the same, which can further ensure uniform heating of the object to be heated during the heating process.

[0044] like Figure 3 As shown, in some embodiments of the present application, the thick film heating unit 111 includes a first heating unit 112 having a first heating power and a second heating unit 113 having a second heating power. The first power and the second power can be the same or different. When the first power and the second power are the same, the overall heating power can be set to a lower power by turning on only the first heating unit 112 or only the second heating unit 113, or the overall heating power can be set to a higher power by turning on both the first heating unit 112 and the second heating unit 113. When the first power is lower than the second power, the overall heating power can be set to a lower power by turning on only the first heating unit 112, or to a medium power by turning on only the second heating unit 113, or to a higher power by turning on both the first heating unit 112 and the second heating unit 113. This allows adjustment of the overall heating power.

[0045] Specifically, which power of the heating unit to be turned on can be determined based on the detection signal control structure 130. For example, the control structure 130 can be a control circuit provided on a circuit board, and the circuit board is provided inside the thick film heating device. The detection signal can be directly (the detection signal is an electrical signal) or indirectly (the detection signal is a non-electrical signal such as an optical signal, a pressure signal, etc.) connected to the control circuit, thereby controlling the opening and closing of the circuit. Specifically, a thick film heating unit is connected to the control circuit. Then, when the detection signal controls the control circuit to be closed, the thick film heating unit is in a working state and performs heating; when the detection signal controls the control circuit not to be closed, the thick film heating unit is in a non-working state and does not perform heating. Specifically, the control circuit may include a plurality of parallel sub-circuits, each sub-circuit being connected to a thick film heating unit of different heating power. Then the detection signal may also include information on the connected sub-circuits, so that when the control circuit is closed, the control signal can be used to select which sub-circuit is connected to the closed control circuit to determine the corresponding heating power. Figure 3 As shown, in some embodiments of the present application, in each row of the array formed by all thick film heating units 111 (i.e., the thick film heating units 111 arranged along the first direction X), the first heating units 112 and the second heating units 113 are arranged alternately. In the case where only the first heating units 112 are turned on in each row, there will be a first heating unit 112 turned on for every second heating unit 113 in the middle, which can ensure that the object to be heated is heated evenly in this state. Similarly, in the case where only the second heating units 113 are turned on in each row, there will be a second heating unit 113 turned on for every first heating unit 112 in the middle, which can ensure that the object to be heated is heated evenly in this state.

[0046] like Figure 3 As shown, in some embodiments of the present application, in each column of the array formed by all thick film heating units 111 (i.e., the thick film heating units 111 arranged along the second direction Y), the first heating units 112 and the second heating units 113 are arranged alternately. In the case where only the first heating units 112 are turned on in each column, there will be a first heating unit 112 in the turned-on state for every second heating unit 113 in the middle, which can ensure that the object to be heated is heated evenly in this state. Similarly, in the case where only the second heating units 113 are turned on in each column, there will be a second heating unit 113 in the turned-on state for every first heating unit 112 in the middle, which can ensure that the object to be heated is heated evenly in this state.

[0047] In some other embodiments, it is also possible to consider setting up heating units with more than two powers. For example, there are three types of heating units A, B, and C. The three heating units can be arranged in an array according to preset rules. The specific rules can be determined based on the shape and area size of the array, thereby achieving more heating power adjustments.

[0048] like Figure 2 As shown, in some embodiments of the present application, the detection mechanism 120 includes a plurality of detection units, and the detection units can correspond one to one with the thick film heating units 111, that is, each detection unit corresponds to only one thick film heating unit 111, and each thick film heating unit 111 also corresponds to only one detection unit. When the detection signal output by the detection unit is "yes", it can be considered that there is an object to be heated above the corresponding thick film heating unit 111. At this time, the control mechanism 130 sends an instruction to the thick film heating unit 111 to control the thick film heating unit 111 to turn on. When the detection signal output by the detection unit is "no", it can be considered that there is no object to be heated above the corresponding thick film heating unit 111. At this time, the control mechanism 130 sends an instruction to the thick film heating unit 111 to control the thick film heating unit 111 to turn off.

[0049] In other embodiments of the present application, one detection unit may correspond to multiple (e.g., 2 to 5) thick film heating units, and the multiple thick film heating units only correspond to the one detection unit. When the detection signal output by the detection unit is "yes", it can be determined that there are objects to be heated above the corresponding multiple thick film heating units. In this case, the control mechanism sends instructions to the multiple thick film heating units to control the multiple thick film heating units to be turned on together. When the detection signal output by the detection unit is "no", it can be determined that there are no objects to be heated above the corresponding multiple thick film heating units. In this case, the control mechanism sends instructions to the multiple thick film heating units to control the multiple thick film heating units to be turned off together.

[0050] In other embodiments of the present application, multiple (for example, 2 to 5) detection units may correspond to one thick film heating unit, and the one thick film heating unit only corresponds to the multiple detection units. When some (for example, more than half of the number) or all of the detection units output a "yes" detection signal, it can be determined that there is an object to be heated above the corresponding thick film heating unit, and the control mechanism sends an instruction to the thick film heating unit to control the thick film heating unit to turn on. When some (for example, more than half of the number) or all of the detection units output a "no" detection signal, it can be determined that there is no object to be heated above the corresponding thick film heating unit, and the control mechanism sends an instruction to the thick film heating unit to control the thick film heating unit to turn on.

[0051] In some embodiments of the present application, the detection unit includes a first sensor configured to detect whether an object to be heated is approaching the thick-film heating unit, specifically, whether an object to be heated is located within the working area of ​​the thick-film heating unit. Specifically, when the object to be heated is within the working area of ​​the thick-film heating unit, the first sensor senses the presence of the object within the working area and outputs a "yes" detection signal. The following examples illustrate specific types of the first sensor. Those skilled in the art should understand that the following examples are illustrative and not exhaustive.

[0052] like Figure 5 As shown, in some embodiments of the present application, the first sensor may include a pressure sensor 121. In this case, the detection signal is a pressure signal of the working area of ​​the corresponding thick film heating unit 111. Specifically, the pressure sensor 121 may be disposed below the thick film heating unit 111. When an object to be heated is placed above the thick film heating unit 111, the object to be heated will generate pressure on the thick film heating unit 111 under the action of gravity. When the pressure sensor 121 senses that the pressure has increased beyond a preset range, it will output a "yes" detection signal. When the object to be heated is removed from above the thick film heating unit 111, the pressure sensed by the pressure sensor 121 returns to within the preset range, and it will output a "no" detection signal.

[0053] like Figure 2 and Figure 5 As shown, in some embodiments of the present application, the thick film heating device 100 may further include: a base 140 and a plurality of support members 150. The upper surface of the base 140 is used to connect to the support member 150, and each support member 150 is fixedly connected to the thick film heating unit 111, that is, the thick film heating unit 111 is connected to the base 140 through the support member 150. The support member 150 and the thick film heating unit 111 can be fixedly connected by structures such as screws and snaps, or can be fixedly connected by welding, bonding, etc. The support member 150 and the thick film heating unit 111 can correspond one to one, that is, each support member 150 corresponds to a thick film heating unit 111, and each thick film heating unit 111 corresponds to a support member 150. This ensures that each thick film heating unit 111 can be restricted to a preset position.

[0054] In other embodiments of the present application, multiple support members may correspond to one thick film heating unit, and one thick film heating unit may correspond to multiple support members. By using multiple support members to define the position of one thick film heating unit, it is possible to ensure that the thick film heating unit is firmly confined within a preset range.

[0055] In other embodiments of the present application, a single support member may correspond to multiple thick film heating units, and the multiple thick film heating units may correspond to the single support member. Using a single support member to simultaneously support multiple thick film heating units can confine the multiple thick film heating units within a predetermined range, and the overall structure is simple and easy to install.

[0056] like Figure 5 As shown, in some embodiments of the present application, the thick film heating device 100 may further include an elastic member 160, which may be a spring. The elastic member 160 is wound around the outside of the support member 150, that is, the support member 150 at least partially extends into the cavity formed by the elastic member 160. The elastic force exerted on the support member 150 by the elastic member 160 in all directions is approximately the same, which can prevent the support member 150 from deflecting and tilting. In addition, one end (e.g., the bottom end) of the elastic member 160 is connected to the pressure sensor 121, and the other end (e.g., the top end) is connected to the corresponding thick film heating unit 111. The pressure sensor 121 can be fixedly mounted on the base 140. When the object to be heated is placed above the thick film heating unit 111, gravity will generate pressure on the thick film heating unit 111, and the spring will be squeezed under this pressure. The squeezing force acts on the pressure sensor 121, and the pressure sensor 121 can sense the change in pressure; when the object to be heated is removed, the elastic part can return to its original installation state, and the pressure sensor 121 can sense the change in pressure. The change in pressure can be used to determine whether there is an object to be heated in the working area of ​​the thick film heating unit 111.

[0057] like Figure 6 As shown, in some other embodiments of the present application, the first sensor may also include a light sensor 122, and the light sensor 122 may be arranged below the thick film heating unit 111. In this case, the detection signal is a light signal of the working area of ​​the corresponding thick film heating unit 111. Specifically, when the object to be heated is placed above the thick film heating unit 111, the light above the thick film heating unit 111 will be blocked from passing through the thick film heating unit 111. The light sensor 122 located below the thick film heating unit 111 can sense the change in light intensity. When the light intensity sensed by the light sensor 122 is less than a preset range, a detection signal of "yes" may be output; when the object to be heated is moved out of the thick film heating unit 111, the light intensity sensed by the light sensor 122 returns to the preset range, and a detection signal of "no" may be output.

[0058] like Figure 6 and Figure 7As shown, specifically, the thick-film heating unit 111 can be a transparent thick-film unit, and light can pass through the transparent thick-film heating unit 111 and enter the light sensor 122, without the need to provide a through hole in the transparent thick-film heating unit 111 for light to pass through. The corresponding thick-film heating unit has a simple structure and is easy to manufacture. The light sensor 122 is arranged adjacent to the thick-film heating unit 111, that is, the light sensor 122 can be attached to the lower surface of the thick-film heating unit 111, or there can be a space of a preset height between the light sensor 122 and the lower surface of the thick-film heating unit 111, and no other structure exists in the space, so as to ensure that the light sensor 122 can effectively sense light that passes through the thick-film heating unit 111 from above and enters the space.

[0059] like Figure 8 and Figure 9 As shown, in other embodiments of the present application, the thick film heating unit 111 may also be a non-transparent thick film unit, and the thick film heating unit 111 is provided with a through hole 114. The through hole 114 allows light to pass through the thick film heating unit 111 from above and enter the sensing range of the light sensor. The light sensor 122 is disposed adjacent to the through hole 114, that is, the light sensor 122 may be attached to the lower surface of the through hole 114, or may have a space of a predetermined height between it and the lower surface of the thick film heating unit 111, and no other structures exist in the space, to ensure that the light sensor 122 can effectively sense the light that enters the space from above the thick film heating unit 111 through the through hole 114.

[0060] like Figure 6 As shown in FIG8 , in other embodiments of the present application, one end (e.g., the top end) of the support member 150 can be fixedly connected to the light sensor 122, and the light sensor 122 can be fixedly connected to the thick film heating unit 111, that is, the support member 150 is fixedly connected to the thick film heating unit 111 via the light sensor 122. The other end (e.g., the bottom end) of the support member 150 can be fixedly connected to the base 140 to fix the position of the thick film heating unit 111.

[0061] like Figure 10As shown, in some other embodiments of the present application, the first sensor may also include a metal sensor 123, and the metal sensor 123 may be provided on the upper surface of the thick film heating unit 111. In this case, the detection signal is a metal signal of the working area of ​​the corresponding thick film heating unit 111. Specifically, when the object to be heated is metal (such as a metal pot) and is placed above the thick film heating unit 111, the metal sensor 123 can determine whether the object to be heated in contact with it is metal or non-metal. When the metal signal sensed by the metal sensor 123 is greater than a preset range, a detection signal of "yes" may be output; when the object to be heated is metal and is moved out of the thick film heating unit 111, the metal signal sensed by the metal sensor 123 returns to the preset range, and a detection signal of "no" may be output.

[0062] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A thick film heating device, characterized in that: include: A thick film heating assembly comprising a plurality of thick film heating units arranged in a rectangular array, each of the thick film heating units being configured to heat a corresponding working area, with predetermined gaps being provided between adjacent thick film heating units; the thick film heating units comprising a first heating unit having a first heating power and a second heating unit having a second heating power, the first power being less than the second power; the first heating units and the second heating units being alternately arranged in each row and column of the array; a detection mechanism for detecting whether there is an object to be heated in the working area of ​​each thick film heating unit and outputting a detection signal according to the detection result; a control mechanism connected to the thick film heating assembly and the detection mechanism; It is used to receive the detection signal from the detection mechanism and control the opening and closing of each thick film heating unit according to the detection signal.

2. The thick film heating device according to claim 1, wherein The detection mechanism includes a plurality of detection units, and the detection units correspond to the thick film heating units one by one.

3. The thick film heating device according to claim 2, characterized in that The detection unit includes a first sensor for detecting whether there is an object to be heated in the corresponding working area of ​​the thick film heating unit.

4. The thick film heating device according to claim 3, wherein: The first sensor includes a pressure sensor, and the detection signal is a pressure signal of the corresponding working area of ​​the thick film heating unit.

5. The thick film heating device according to claim 4, characterized in that The thick film heating device further comprises: base; A plurality of support members are provided, each support member being connected to the base and the thick film heating unit; and the support members are in one-to-one correspondence with the thick film heating units.

6. The thick film heating device according to claim 5, characterized in that The thick film heating device further comprises: An elastic member is arranged around the supporting member, one end of the elastic member is connected to the pressure sensor and the other end is connected to the corresponding thick film heating unit.

7. The thick film heating device according to claim 3, wherein: The first sensor comprises a light-sensing sensor, and the detection signal is a light signal corresponding to the working area of ​​the thick film heating unit.

8. The thick film heating device according to claim 7, wherein: The thick film heating unit is a transparent thick film unit, and the light sensing sensor is arranged adjacent to the thick film heating unit.

9. The thick film heating device according to claim 7, wherein: The thick film heating unit is a non-transparent thick film unit with a through hole, and the light sensor is used to sense light passing through the through hole.

10. The thick film heating device according to any one of claims 7 to 9, characterized in that: The thick film heating device further comprises: base; A plurality of support members, each of the support members is connected to the base and the thick film heating unit; the support members correspond to the thick film heating units one by one.

11. The thick film heating device according to claim 3, wherein: The first sensor comprises a metal sensor, and the detection signal is a metal detection signal corresponding to the working area of ​​the thick film heating unit.

12. A stove, characterized in that: The stove comprises the thick film heating device according to any one of claims 1 to 11.

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