CN115736612A - Cooking appliance and detection method - Google Patents

Abstract

The application discloses a cooking appliance and a detection method. The cooking appliance comprises a shell, a bottom plate, a light source and a temperature sensor, wherein the shell and the bottom plate enclose a cooking space, the light source and the temperature sensor are arranged in the cooking space, and the light source emits indicating light rays to a preset cooking area in the cooking space; the temperature sensor is used for collecting temperature information, and a first view field range of the temperature sensor is overlapped with a second view field range of the light source. The light source which is coincided with the first view field range of the temperature sensor through the second view field range emits the indicating light to indicate the position of the object to be cooked which is actually to be placed, and the object to be cooked is located in the first view field range of the temperature sensor only by ensuring that the indicating light covers the surface of the object to be cooked, so that the temperature measuring accuracy of the temperature sensor on the object to be cooked is ensured, and the cooking effect is ensured.

Description

Cooking appliance and detection method

Technical Field

The application relates to the technical field of household appliances, in particular to a cooking appliance and a detection method.

Background

At present, cooking apparatus is like the oven, the steam ager, microwave oven etc, the user is when putting into cooking utensil with eating the material, generally can put in advance through the culinary art area of sign line mark in the cooking utensil in, and generally can set up temperature measuring device on cooking utensil's lateral wall, but set up the actual effectual temperature measurement visual field scope of temperature measuring device at cooking utensil's lateral wall, and the culinary art area of sign line mark does not match completely, even eat the material and put into the culinary art area, it is possible that only the part is located effectual temperature measurement visual field scope also to have, lead to the temperature measurement accuracy reduction to eating the material, and then influence the culinary art effect.

Disclosure of Invention

The embodiment of the application provides a detection method of an electric appliance, a control device of the electric appliance, the electric appliance and a computer readable storage medium.

The cooking electric appliance comprises a shell, a bottom plate, a light source and a temperature sensor, wherein a cooking space is defined by the shell and the bottom plate, the light source and the temperature sensor are arranged in the cooking space, and the light source emits indicating light rays to a preset cooking area in the cooking space; the temperature sensor is used for collecting temperature information, and a first view field range of the temperature sensor is overlapped with a second view field range of the light source.

The detection method is applied to a cooking appliance, the cooking appliance comprises a shell, a bottom plate, a light source and a temperature sensor, a cooking space is defined by the shell and the bottom plate, and the light source and the temperature sensor are arranged in the cooking space; the temperature sensor is used for collecting temperature information, a first view field range of the temperature sensor is coincided with a second view field range of the light source, and the detection method comprises the following steps: controlling the light source to emit indicating light to a preset cooking area in the cooking space; and acquiring the temperature information acquired by the temperature sensor.

In the cooking appliance and the detection method, the light source which is overlapped with the first view field range of the temperature sensor through the second view field range emits the indicating light to indicate the position where the object to be cooked should be actually placed, the indicating light is not directly placed in the preset cooking area, when the object to be cooked is placed according to the indicating light, the surface of the object to be cooked only needs to be covered by the indicating light, the object to be cooked can be located in the first view field range of the temperature sensor, the temperature sensor can acquire all infrared light emitted by the object to be cooked to acquire temperature information, the temperature measurement accuracy of the temperature sensor on the object to be cooked is ensured, and the cooking effect is further ensured.

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

Drawings

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

fig. 1 is a schematic plan view of a cooking appliance according to some embodiments of the present application.

Fig. 2 and 3 are schematic views of scenes of a cooking appliance cooking an object to be cooked according to some embodiments of the present application.

FIG. 4 is a schematic diagram of a reflector cup, a light source, and a temperature sensor according to one embodiment of the present application.

Fig. 5 is a schematic view of a reflector cup, a light source, and a temperature sensor according to another embodiment of the present disclosure.

FIG. 6 is a schematic diagram of a light source, a temperature sensor, and an optical filter according to an embodiment of the present application.

FIG. 7 is a schematic diagram of a light source, a temperature sensor, and an optical filter according to another embodiment of the present application.

FIG. 8 is a schematic flow chart of a detection method according to some embodiments of the present disclosure.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

Referring to fig. 1, a cooking appliance 100 of the present application includes a housing 10, a base plate 20, a light source 30, and a temperature sensor 40, wherein the temperature sensor 40 and the light source 30 are located in a cooking space 50. The housing 10 and the base plate 20 together enclose a cooking space 50. The light source 30 emits an indication light to a preset cooking area S in the cooking space 50; the temperature sensor 40 is used to collect temperature information, and the first field of view range 41 of the temperature sensor 40 and the second field of view range 31 of the light source 30 coincide.

In the cooking appliance 100 and the detection method in the embodiment of the application, the light source 30 coinciding with the first view field range 41 of the temperature sensor 40 through the second view field range 31 emits the indicating light to indicate the position where the object to be cooked 200 should be actually placed, instead of being directly placed in the preset cooking area S, when the object to be cooked 200 is placed according to the indicating light, only the indicating light is required to cover the surface of the object to be cooked 200, the object to be cooked 200 can be located in the first view field range 41, the temperature sensor 40 can acquire all infrared light emitted by the object to be cooked 200, so as to acquire temperature information, thereby ensuring the temperature measurement accuracy of the temperature sensor 40 on the object to be cooked 200, and further ensuring the cooking effect.

Referring again to fig. 1, the cooking appliance 100 is further described below:

the cooking appliance 100 includes a housing 10, a base plate 20, a light source 30, a temperature sensor 40, a heater 60, and a controller 70. The housing 10 and the base plate 20 together enclose a cooking space 50. The light source 30 and the temperature sensor 40 are located in the cooking space 50.

The cooking appliance 100 may be a microwave oven, an oven, a steam box, or the like. In the present application, the cooking appliance 100 is taken as an example for explanation, and the principle when the cooking appliance 100 is another type of appliance is basically similar, and is not described herein again.

The housing 10 includes a top wall 11 and a side wall 12, the top wall 11 and a bottom plate 20 being disposed opposite to each other, and the side wall 12 being disposed on the bottom plate 20.

The housing 10 is opened with a door 13 (not shown). In one example, the side wall 12 is provided with a door body 13 to form a side opening door; in another example, the top wall 11 is opened with a door 13 to form an upward opening door, and the door 13 can be opened and closed to open or close the cooking space 50. The user can put the object to be cooked 200 (such as a food material, an appliance carrying the food material, etc.) into the cooking space 50 by opening the door 13.

The side wall 12 is further opened with an installation groove 121, and the light source 30 and the temperature sensor 40 are both disposed in the installation groove 121.

Alternatively, in the case where the user puts the object to be cooked 200 into the cooking space 50, the description may start cooking, and the controller 70 may turn off the light source 30 instructing the user to put the object to be cooked 200, avoiding unnecessary power consumption.

The housing 10 is further provided with a control component 14 such as a knob, the control component 14 can set a cooking temperature and transmit the cooking temperature to the controller 70, and the controller 70 controls the heater 60 to stop heating when the heater 60 heats the object 200 to be cooked until the temperature sensor 40 detects that the temperature of the object 200 to be cooked reaches the cooking temperature, so as to realize constant temperature heating and improve the cooking effect. When the control module 14 sets the cooking temperature to 0, which means that heating is no longer performed, the controller 70 may immediately control the heater 60 to stop heating, so as to control cooking.

The bottom plate 20 is arranged opposite to the top wall 11 of the housing 10, the bottom plate 20 is used for bearing an object 200 to be cooked, a preset cooking area S surrounded by an identification line is formed on the bottom plate 20, and the preset cooking area S can be a range covered by the first view field range 41 of the temperature sensor 40 on the bottom plate 20, or the preset cooking area S can be a range covered by the second view field range 31 of the light source 30 on the bottom plate 20; or the preset cooking area S may be a range covered by the first viewing range 41 and the second viewing range 31 on the bottom plate 20, i.e. the overlapping area M of the two ranges.

It can be understood that, since the temperature sensor 40 is disposed on the sidewall 12, the first field of view range 41 does not completely cover the preset cooking area S, but obliquely covers the preset cooking area S (as shown in fig. 1), therefore, in the case where the height of the object to be cooked 200 is high, as shown in fig. 2, even if the object to be cooked 200 is placed in the preset cooking area S, most of the object to be cooked 200 may be located outside the second field of view range 31, and the object to be cooked 200 is located only laterally within the first field of view range 41, while the food contained in the object to be cooked 200 is generally disposed in the center of the object to be cooked 200, and thus, the temperature detected by the temperature sensor 40 at this time is quite inaccurate.

Therefore, at this time, when the user places the object to be cooked 200 according to the indication light so that the surface of the object to be cooked 200 is irradiated by the indication light as much as possible, as shown in fig. 3, the central region of the upper surface of the object to be cooked 200 is located within the first field range 41, and the temperature sensor 40 can more accurately detect the temperature information of the food material placed in the central region of the upper surface of the object to be cooked 200, thereby improving the temperature measurement accuracy.

The light source 30 is disposed in the mounting groove 121 formed in the sidewall 12, and a light emitting surface of the light source 30 faces the cooking space to emit an indicating light to the cooking space.

The temperature sensor 40 is disposed in the mounting groove 121 formed in the side wall 12, and a light receiving surface of the temperature sensor 40 faces the cooking space 50 to receive the infrared light in the first field range 41, which is understood to be invisible light.

The first field of view range 41 of the temperature sensor 40 may coincide with the second field of view range 31 of the light source 30, including the first field of view range 41 of the temperature sensor 40 may partially or completely coincide with the second field of view range 31 of the light source 30.

Referring to fig. 1, in one embodiment, the temperature sensor 40 and the light source 30 can be arranged side by side, the first field of view range 41 can at least partially overlap the second field of view range 31, and the smaller the distance between the light source 30 and the temperature sensor 40, the larger the overlapping area M. The predetermined cooking area S is located in the overlapping area M, for example, the predetermined cooking area S is a range covered by the bottom plate 20.

In this embodiment, light source 30 and temperature sensor 40 meet and set up side by side, thereby maximize ground promotes the coincidence zone M of first visual field scope 41 and second visual field scope 31, when the user places according to the pilot light and treats cooking object 200, only need guarantee to treat that cooking object 200 is covered by the pilot light completely, perhaps cover the central zone of upper surface as far as possible, just can guarantee that the infrared light that treats cooking object 200 and send can basically be received by temperature sensor 40, thereby guarantee that temperature sensor 40 treats cooking object 200's temperature detection accuracy.

Referring to fig. 4, optionally, the cooking appliance 100 may further include a reflective cup 80. The reflector cup 80 is disposed on the side wall 12, and an opening 81 of the reflector cup 80 faces the predetermined cooking area S. The light source 30 and the temperature sensor 40 are both disposed at the bottom of the light reflecting cup 80. The reflector cup 80 is used to adjust the first field of view range 41 of the temperature sensor 40 and the second field of view range 31 of the light source 30 to further improve the overlapping area M of the first field of view range 41 and the second field of view range 31.

Optionally, the light source 30 and the temperature sensor 40 are disposed in the reflector cup 80, and are disposed side by side at an end of the reflector cup 80 away from the opening 81 (i.e., at the bottom of the reflector cup 80). The light receiving surface of the temperature sensor 40 and the light emitting surface of the light source 30 both face the opening 81 of the reflector cup 80, and the size of the opening 81 of the reflector cup 80 can be determined according to the overlapping area M of the first field range 41 and the second field range 31, where the range covered by the opening 81 of the reflector cup 80 of the first field range 41 and the second field range 31 is the overlapping area M, that is, the light rays outside the overlapping area M in the second field range 31 of the light source 30 are all reflected into the overlapping area M by the reflector cup 80, and the light rays outside the overlapping area M in the first field range 41 of the temperature sensor 40 cannot be incident into the reflector cup 80, so that the actual field range of the light source 30 and the actual field range of the temperature sensor 40 are almost completely overlapped, that are both the overlapping area M, and the indicating effect of the indicating light rays on the cooking object 200 is ensured to the greatest extent.

Referring to fig. 5, optionally, the reflector cup 80 includes a first reflector surface 82 and a second reflector surface 83. The first light reflecting surface 82 and the second light reflecting surface 83 are oppositely arranged, and the first light reflecting surface 82 is oppositely arranged with respect to the light source 30 to reflect the indicating light emitted by the light source 30 to form the second field range 31. The second reflective surface 83 is opposite to the temperature sensor 40, and the infrared light (specifically, the infrared light within the first field range 41) is reflected by the second reflective surface 83 and then converges to the temperature sensor 40. The reflective cup 80 is further provided with a fixing frame 84, and the fixing frame 84 is positioned at the bottom of the reflective cup 80. The light source 30 and the temperature sensor 40 are respectively disposed on two opposite sides of the fixing frame 84, so that the light source 30 emits an indication light toward the first light reflecting surface 82, and the temperature sensor 40 faces the second light reflecting surface 83 to receive the infrared light reflected by the second light reflecting surface 83.

The radian of the first reflecting surface 82, the radian of the second reflecting surface 83, the angle of the light emitting surface relative to the first reflecting surface 82 and the angle of the light receiving surface relative to the second reflecting surface 83 can be adjusted to adjust the overlapping area M of the first view field range 41 and the second view field range 31, so that the overlapping area M of the first view field range 41 and the second view field range 31 is as large as possible, and the indicating effect of the indicating light on the object to be cooked 200 is ensured to the greatest extent.

Referring to fig. 5, optionally, the cooking appliance 100 may further include a lens 91, the lens 91 may transmit not only infrared light but also indication light, and the lens 91 is disposed at the opening 81 of the reflective cup 80 to seal the reflective cup 80, so as to prevent gas generated by heating the object 200 to be cooked in the cooking space 50 from affecting the light source 30 and the temperature sensor 40 in the reflective cup 80, and ensure the service life and accuracy of the light source 30 and the temperature sensor 40.

Optionally, the lens 91 may also seal the opening of the mounting groove 121 formed in the side wall 12, so as to ensure that the light source 30 and the temperature sensor 40 in the mounting groove 121 are not affected by the gas and the like generated by heating the object to be cooked 200 in the cooking space 50, and ensure the service life and accuracy of the light source 30 and the temperature sensor 40.

Optionally, referring to fig. 6, the cooking appliance 100 may further include an optical filter 92. The filter 92 may be disposed in the mounting groove 121 formed in the sidewall 12, and the filter 92 is a half-mirror member capable of transmitting infrared light and reflecting indication light. The filter 92 may be disposed in the first field of view range 41, and infrared light in the first field of view range 41 is transmitted through the filter 92 to be received by the temperature sensor 40; the light emitted from the light source 30 is reflected by the filter 92 to form the second field of view 31.

In this manner, the second viewing field range 31 of the light source 30 is adjusted while the filter 92 is disposed in the first viewing field range 41 to transmit infrared rays, so that the overlapping area M is as large as possible.

Alternatively, referring to fig. 7, the filter 92 is a transflective device, and the filter 92 can not only transmit the indication light but also reflect the infrared light. The filter 92 is disposed in the second field of view 31, the light emitted from the light source 30 passes through the filter 92 to form the second field of view 31, and the infrared light in the first field of view 41 is reflected by the filter 92 to be received by the temperature sensor 40.

In this manner, the first visual field range 41 of the temperature sensor 40 is adjusted while the filter 92 is provided in the second visual field range 31 to transmit the indicator light, so that the overlapping area M is made as large as possible.

Referring to fig. 1 again, the housing 10 further includes a bottom wall 15, the bottom wall 15 is disposed opposite to the bottom plate 20, the side wall 12 is disposed on the bottom wall 15, the side wall 12 and the bottom plate 20 enclose an installation space 16, and the heater 60 is disposed in the installation space 16.

The heater 60 may include a microwave antenna 61 and a magnetron 62, and a microwave signal is generated by the magnetron 62 and then microwaves are emitted from the microwave antenna 61 to achieve heating of the object to be cooked 200.

The controller 70 is used to control cooking, and after the user sets the cooking temperature through the control assembly 14, the controller 70 acquires the temperature detected by the temperature sensor 40 in real time, and then determines whether the temperature detected by the temperature sensor 40 reaches the cooking temperature. When the temperature detected by the temperature sensor 40 reaches a preset temperature (i.e. a cooking temperature set by a user), the heater 60 is controlled to stop heating, and when the temperature detected by the temperature sensor 40 is lower than a preset temperature (if the preset temperature is equal to the cooking temperature minus 5 ℃), the controller 70 controls the heater 60 to heat again, and the steps are repeated in this way to realize constant-temperature heating; for different food materials, the cooking time is different, so that the user can set the cooking time through the control assembly 14, and control the heater 60 to stop heating when the heating time reaches a preset time (i.e. the cooking time set by the user).

Referring to fig. 1 and 8, the detection method according to the embodiment of the present application is applied to the cooking appliance 100, and the detection method includes the following steps:

011: controlling the light source 30 to emit an indication light to a preset cooking area S within the cooking space 50;

012: temperature information collected by the temperature sensor 40 is acquired.

Specifically, during cooking, a user firstly opens the door 13 of the housing 10, and at this time, it can be determined that the user wants to place the object to be cooked 200, the controller 70 can control the light source 30 to emit an indication light toward the preset cooking area S, and the user places the object to be cooked 200 according to the indication light, so that the object to be cooked 200 (or at least the central area of the upper surface of the object to be cooked 200) is covered by the indication light, that is, the surface of the object to be cooked 200 is irradiated by the indication light, which means that the temperature sensor 40 can receive all infrared light of the object to be cooked 200, so that the temperature information of the object to be cooked 200 can be accurately acquired, and thus cooking control is facilitated.

By acquiring the temperature information of the object to be cooked 200, when the temperature of the object to be cooked 200 reaches the cooking temperature set by the user, the heating is stopped, and after the temperature of the object to be cooked 200 is reduced, the object to be cooked is heated again, so that the constant temperature heating is realized. And when the heating time reaches the cooking time set by the user, the cooking is determined to be completed, and at this time, the heater 60 is controlled to stop heating, so that the cooking of the object to be cooked 200 is completed.

In one embodiment, the object to be cooked 200 is a chicken leg placed on a dinner plate, the user first sets the cooking temperature and the cooking time period through the control assembly 14, and the controller 70 can obtain the cooking temperature and the cooking time period set by the user. After the cooking temperature and the cooking time are set, the user opens the door 13 (not shown) of the cooking appliance 100, at this time, after the controller 70 receives the information that the door 13 is opened, the user can confirm that the user needs to cook, at this time, the light source 30 is controlled to emit the indicating light, the user moves the object to be cooked 200 according to the indicating light until the indicating light covers the chicken legs on the dinner plate, that is, the object to be cooked is determined to have been placed, and at this time, the user closes the door 13. After the controller 70 receives the information that the door 13 is closed, it can be determined that cooking can be started, at this time, the controller 70 controls the heater 60 to start heating, and obtains the temperature detected by the temperature sensor 40 in real time, when the temperature reaches the cooking temperature, the heater 60 is controlled to stop heating, and when the temperature is reduced to a predetermined temperature (for example, the cooking temperature is reduced by 5 degrees), the controller 70 controls the heater 60 to heat again, and the above steps are repeated in a circulating manner, so that the temperature of the object to be cooked 200 is always substantially equal to the cooking temperature, and constant-temperature cooking is realized. After the heating time period reaches the set cooking time period, the controller 70 determines that the cooking is completed and controls the heater 60 to stop heating, thereby completing the entire cooking process.

In addition, in order to ensure safety, during the cooking process (i.e. before the heating time period does not reach the cooking time period), the controller 70 controls the door 13 to be always in the locked state, and the user cannot open the door 13. Only after cooking is finished, the door 13 is unlocked, and the user can normally open the door 13 to take out the object to be cooked 200.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

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.

Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.

The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Further, the computer readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware that is related to instructions of a program, and the program may be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. The cooking appliance is characterized by comprising a shell, a bottom plate, a light source and a temperature sensor, wherein the shell and the bottom plate enclose a cooking space, the light source and the temperature sensor are arranged in the cooking space, and the light source emits indicating light rays to a preset cooking area in the cooking space; the temperature sensor is used for collecting temperature information, and a first view field range of the temperature sensor is overlapped with a second view field range of the light source.

2. The cooking appliance according to claim 1, wherein the housing is provided with a door body, the door body can open and close the cooking space, and the light source is turned off when the door body closes the cooking space.

3. The cooking appliance according to claim 1, further comprising a reflective cup, wherein the light source and the temperature sensor are disposed at a bottom of the reflective cup, the reflective cup comprises a first reflective surface and a second reflective surface opposite to the first reflective surface, the first reflective surface reflects the indication light emitted from the light source to form the second field range, and the infrared light in the first field range converges toward the temperature sensor after being reflected by the second reflective surface.

4. The electrical cooking appliance as claimed in claim 3, further comprising a lens transparent to the infrared light and the indication light, wherein the reflective cup defines an opening opposite the bottom, and the lens is disposed in the reflective cup and closes the opening.

5. The cooking appliance according to claim 3, wherein a fixing frame is further disposed at the bottom of the reflective cup, and the light source and the temperature sensor are disposed on opposite sides of the fixing frame, so that the light emitting surface of the light source faces the first reflective surface and the light receiving surface of the temperature sensor faces the second reflective surface.

6. The cooking appliance according to claim 3, wherein the housing comprises a top wall and a side wall, the top wall is opposite to the bottom plate, the side wall is provided with a mounting groove, the reflection cup is arranged in the side wall, and the opening of the reflection cup faces the preset cooking area.

7. The cooking appliance according to claim 1 or 3, wherein the light source and the temperature sensor are arranged side by side such that the first field of view range and the second field of view range at least partially coincide, the preset cooking area being located within the region of coincidence of the first field of view range and the second field of view range.

8. The cooking appliance of claim 1 further comprising an optical filter capable of transmitting infrared light and reflecting the indicator light, the optical filter being disposed within the first field of view, the infrared light within the first field of view being transmitted through the optical filter for receipt by the temperature sensor; and light rays emitted by the light source form the second field range after being reflected by the optical filter.

9. The cooking appliance according to claim 1, further comprising:

a heater for heating;

the controller is used for controlling the heater to stop working under the condition that the temperature reaches a preset temperature; and/or controlling the heater to stop working under the condition that the heating time reaches the preset time.

10. The detection method is applied to a cooking appliance, the cooking appliance comprises a shell, a bottom plate, a light source and a temperature sensor, the shell and the bottom plate enclose a cooking space, and the light source and the temperature sensor are arranged in the cooking space; the temperature sensor is used for collecting temperature information, a first view field range of the temperature sensor is coincided with a second view field range of the light source, and the detection method comprises the following steps:

controlling the light source to emit indicating light rays to a preset cooking area in the cooking space;

and acquiring the temperature information acquired by the temperature sensor.

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