A pot identification structure for cooking equipment and a coupling device for cooking equipment

Abstract

The present invention relates to a pot identification structure and coupling device for cooking equipment. The pot identification structure comprises: a pot identification pin disposed on the pot, the pot identification pins having different lengths on different pots, or an insulating rubber sleeve with different positions or lengths on the pot identification pins; a pot signal detection channel disposed on the base of the cooking equipment, the pot signal detection channel having at least two detection elements at different positions; the pot identification pins on different pots being inserted into the pot signal detection channel, so that detection signals can be detected by detection elements at different positions within the pot signal detection channel; and a detection signal processing module electrically connected to all detection elements, the detection signal processing module being configured to determine different pot types based on detection signals detected by detection elements at different positions. Compared with the prior art, the present invention has the advantages of low cost and simple implementation.

Description

Technical Field

[0001] The invention relates to a pot body identification structure and a coupling device of cooking equipment. Background Art

[0002] As the functions of multi-functional cooking equipment become more and more numerous and sophisticated, a multi-functional cooking equipment is usually equipped with multiple pots, such as a frying pan for stir-frying, a kneading pan for kneading dough, a special cooking pot for crushing food, and a special frying pan for frying food.

[0003] Currently, multifunctional cooking devices typically identify different pots by installing a magnet and a Hall effect sensor on the base and one of the pots, respectively. When the Hall effect sensor detects the magnet's signal, it identifies the pot as one with a magnet. However, implementing this with a Hall effect sensor is expensive and carries the risk of failure. Some recognition mechanisms also employ a protrusion on the pot and a trigger switch on the base. When the pot is placed on the base, the protrusion presses against the trigger switch, enabling pot recognition. However, this pot recognition solution affects the pot's appearance and is not very reliable. Summary of the Invention

[0004] The first technical problem to be solved by the present invention is to provide a pot identification structure for a cooking device with low cost and capable of detecting a variety of different types of pots in response to the above-mentioned prior art.

[0005] The second technical problem to be solved by the present invention is to provide a coupling device for cooking equipment that can realize detection of multiple different types of pots in response to the above-mentioned prior art.

[0006] The technical solution adopted by the present invention to solve the first technical problem is: a pot body identification structure of a cooking device, characterized by comprising:

[0007] The pot identification pins are provided on the pot body, and the lengths of the pot identification pins on different pot bodies are different, or the pot identification pins on different pot bodies are provided with insulating rubber sleeves of different positions or lengths;

[0008] A pot body signal detection channel is provided on the base of the cooking device, and at least two detection elements are provided in different positions in the pot body signal detection channel; when pot body identification pins on different pots are inserted into the pot body signal detection channel, the detection elements at different positions in the pot body signal detection channel can detect the detection signal accordingly;

[0009] A detection signal processing module is electrically connected to all detection elements, and the detection signal processing module is configured to: determine different pot types based on detection signals detected by detection elements at different positions.

[0010] As an improvement, the detection element is one of a plug spring or a micro switch or any combination thereof, for example, it can be two plug springs, or three plug springs, or two plug springs plus a micro switch, or three plug springs plus a micro switch, or two micro switches plus a plug spring, etc.

[0011] In one preferred embodiment, the detection element is a plug spring, and a first plug spring and a second plug spring are provided at different depths in the pot signal detection channel. The detection signal processing module can detect a maximum of the following three pot types based on the detection signals of the first plug spring and the second plug spring:

[0012] The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only make the first plug spring conductive and thus detect the detection signal, but cannot make the second plug spring detect the detection signal;

[0013] The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can both turn on the first plug spring to detect the detection signal and turn on the second plug spring to detect the detection signal;

[0014] The third type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the second plug spring conductive and thus detect the detection signal, but cannot make the first plug spring detect the detection signal.

[0015] As another preferred embodiment, the detection element is a plug spring, and a first plug spring, a second plug spring, and a third plug spring are provided at different depths in the pot signal detection channel. The detection signal processing module can detect a maximum of the following five pot types based on the detection signals of the first plug spring, the second plug spring, and the third plug spring:

[0016] The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only make the first plug spring conductive and thus detect the detection signal, but cannot make the second and third plug springs detect the detection signal;

[0017] The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can connect the first and second plug springs to detect the detection signal, but cannot enable the third plug spring to detect the detection signal;

[0018] The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can simultaneously connect the first plug spring, the second plug spring and the third plug spring to detect the detection signal;

[0019] The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the second plug spring to detect the detection signal, but cannot cause the first plug spring and the third plug spring to detect the detection signal;

[0020] Type 5: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the third plug spring to detect the detection signal, but cannot cause the first plug spring and the second plug spring to detect the detection signal;

[0021] Type 6: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only connect the second and third plug springs to detect the detection signal, but cannot cause the first plug spring to detect the detection signal;

[0022] The seventh type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the first plug spring and the third plug spring conductive to detect the detection signal, but cannot make the second plug spring detect the detection signal.

[0023] As another preferred embodiment, the detection element includes a first plug spring and a second plug spring disposed at different depths within the detection channel, and a micro switch disposed at the bottom of the detection channel. The detection signal processing module can detect a maximum of the following five pot types based on the detection signals of the first plug spring, the second plug spring, and the micro switch:

[0024] The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and cannot trigger the detection signal of the micro switch;

[0025] The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can both turn on the first plug spring to detect the detection signal and the second plug spring to detect the detection signal, but cannot trigger the detection signal of the micro switch;

[0026] The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can simultaneously connect the first and second plug springs to detect the detection signal, and can also trigger the detection signal of the micro switch;

[0027] The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and can also trigger the detection signal of the micro switch;

[0028] The fifth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the second plug spring conductive and thus detect the detection signal, but cannot make the first plug spring detect the detection signal, and at the same time can also trigger the detection signal of the micro switch.

[0029] Of course, other pot body identification detection schemes can be expanded according to the number of detection elements in the pot body signal detection channel, the length of the pot body identification pin on the pot body, and the position of the insulating rubber sleeve.

[0030] As a better implementation method, the pot body identification pin on the pot body is integrated on the upper coupler assembly fixed on the pot body; the pot body signal detection channel and detection element are integrated on the lower coupler assembly fixed on the machine base.

[0031] The present invention solves the above-mentioned second technical problem by adopting the following technical solution: a coupler device of a cooking device, comprising an upper coupler assembly fixed on a pot body, and a lower coupler assembly arranged on a machine base of the cooking device; when the pot body is placed on the machine base, the upper coupler assembly is plugged into and connected with the lower coupler assembly, and its characteristics are as follows: the upper coupler assembly is provided with a pot body identification pin, the pot body identification pins on different pot bodies have different lengths, or the pot body identification pins on different pot bodies are provided with insulating rubber sleeves of different positions or lengths; the lower coupler assembly is correspondingly provided with a pot body signal detection channel, and at least two detection elements at different positions are provided in the pot body signal detection channel; after the pot body identification pins on different pot bodies are inserted into the pot body signal detection channel, the detection elements at different positions in the pot body signal detection channel can detect the detection signal accordingly.

[0032] As an improvement, in addition to the pot body identification pin, the upper coupler assembly is also provided with five pins, two of which are respectively connected to the two ends of the heating element arranged on the pot body, one of which is used for grounding, and the other two pins are respectively connected to the two ends of the temperature detection element arranged on the pot body; correspondingly, in addition to the pot body signal detection channel, the lower coupler assembly is also provided with five detection channels, and each of the five detection channels is provided with a plug spring.

[0033] Compared with the prior art, the advantages of the present invention are: by arranging a pot body identification pin on the pot body, a pot body signal detection channel on the machine base, at least two detection elements in different positions are provided in the pot body signal detection channel, and the length of the pot body identification pin is utilized or insulating rubber sleeves of different positions or lengths are arranged outside the pot body identification pin to trigger the detection signals of the detection elements in different positions, thereby performing pot body type identification, with low cost and simple implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the pot structure in Example 1 of the present invention.

[0035] Figure 2 Schematic diagram of the internal structure of the pot signal detection channel in embodiment 1 of the present invention.

[0036] Figure 3 This is an exploded view of the lower coupler assembly in Example 1 of the present invention.

[0037] Figure 4 This is a structural diagram of the pot body identification pin on the pot body and the pot body signal detection channel after being plugged in according to the first embodiment of the present invention.

[0038] Figure 5 for Figure 4 Enlarged view of part I in the middle.

[0039] Figure 6This is a schematic diagram of the pot structure in Example 2 of the present invention.

[0040] Figure 7 This is a structural diagram of the pot body identification pin on the pot body and the pot body signal detection channel after being plugged in according to the second embodiment of the present invention.

[0041] Figure 8 for Figure 7 Enlarged view of part I in the middle.

[0042] Figure 9 This is a schematic diagram of the pot body structure in Example 3 of the present invention.

[0043] Figure 10 This is a structural diagram of the pot body identification pin on the pot body and the pot body signal detection channel after being plugged in in the third embodiment of the present invention.

[0044] Figure 11 for Figure 10 Enlarged view of part I in the middle.

[0045] Figure 12 Schematic diagram of the internal structure of the pot signal detection channel in the fourth embodiment of the present invention.

[0046] Figure 13 Schematic diagram of the internal structure of the pot signal detection channel in the fifth embodiment of the present invention. DETAILED DESCRIPTION

[0047] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments. Example 1

[0048] The pot identification structure of the cooking device in this embodiment includes:

[0049] The pot identification pin 21 is provided on the pot body 1. The pot identification pin 21 is made of a conductive material. The length of the pot identification pin on different pots is different, or the pot identification pin on different pots is provided with an insulating rubber sleeve of different position or length.

[0050] A pot signal detection channel 31 is provided on the base of the cooking device, and at least two detection elements are provided in different positions within the pot signal detection channel 31. When pot identification pins on different pots are inserted into the pot signal detection channel, the detection elements at different positions within the pot signal detection channel can detect detection signals accordingly.

[0051] A detection signal processing module is electrically connected to all detection elements, and the detection signal processing module is configured to: determine different pot types based on detection signals detected by detection elements at different positions.

[0052] In this embodiment, the pot body identification pin 21 is integrated with the upper coupler assembly 2 fixed on the pot body 1. Figure 1 As shown; the pot body signal detection channel and the detection element are integrated on the lower coupler assembly 3 fixed on the machine base. When the pot body is placed on the machine base, the upper coupler assembly is plugged into the lower coupler assembly. In addition to the pot body identification pin 21, the upper coupler assembly is also provided with five pins 22, 23, 24, 25, and 26, of which two pins 22 and 23 are respectively connected to the two ends of the heating element 9 provided on the pot body 1, one pin 24 is used for grounding, and the other two pins 25 and 26 are respectively connected to the two ends of the temperature detection element 10 provided on the pot body 1; correspondingly, in addition to the pot body signal detection channel 31, the lower coupler assembly is also provided with five detection channels, and these five detection channels 32, 33, 34, 35, and 36 are respectively provided with plug springs 5, participating in Figure 2 、 3 Two detection elements are provided at different positions along the depth direction in the pot body signal detection channel 31. Both detection elements are plug springs, namely the first plug spring 6 and the second plug spring 7. The pot body identification pin 21 on the pot body 1 is relatively short. When the pot body 1 is placed on the machine base and the pot body identification pin 21 is inserted into the pot body signal detection channel 31, the pot body identification pin 21 only contacts the first plug spring 6, causing the first plug spring 6 to conduct and thus detect the detection signal. The pot body identification pin 21 is too long to contact the second plug spring 7. At this time, the second plug spring 7 cannot conduct and no detection signal is detected. Figure 4 、 5 shown.

[0053] By integrating the pot identification pin 21 into the upper coupler assembly fixed to the pot body, and integrating the pot signal detection channel 31 and the detection element into the lower coupler assembly 3 fixed to the base, multiple cup body types can be detected without additional cost, making the process simple and convenient, and facilitating processing and application. The detection signal processing module can be provided separately or integrated into the control board inside the cooking device base. Example 2

[0054] The difference from the first embodiment is that the pot identification pin 21 on the pot body 1 is longer and is wrapped with an insulating rubber sleeve 211. Figure 6As shown, the length of the pot identification pin 21 on the pot body and the position of the insulating rubber sleeve 211 meet the following requirements: when the pot body is placed on the machine base and the pot identification pin 21 is inserted into the pot body signal detection channel 31, the pot body identification pin 21 can contact both the first plug spring 6 and the second plug spring, but the outer cover of the portion of the pot body identification pin 21 that contacts the first plug spring 6 is provided with the insulating rubber sleeve 211. At this time, the pot body identification pin 21 can only make the second plug spring 7 conductive and thus detect the detection signal, but cannot make the first plug spring 6 conductive and detect the detection signal. Figure 7 、 8 shown. Example 3

[0055] The difference from the first embodiment is that the pot identification pin 21 on the pot body 1 is longer and is wrapped with an insulating rubber sleeve 211. Figure 9 As shown, the length of the pot identification pin 21 on the pot body and the position of the insulating rubber sleeve 211 meet the following requirements: when the pot body is placed on the machine base and the pot identification pin 21 is inserted into the pot body signal detection channel 31, the pot body identification pin 21 can contact both the first plug spring 6 and the second plug spring 7. At the same time, the insulating rubber sleeve 211 is close to the bottom of the pot body identification pin 21. At this time, the pot body identification pin 21 can not only make the first plug spring 6 conductive to detect the detection signal, but also make the second plug spring 7 conductive to detect the detection signal. Figure 10 、 11 shown. Example 4

[0056] The difference from the first embodiment is that the detection element includes a first insertion spring 6 and a second insertion spring 7 arranged at different depths in the detection channel 31, and a micro switch 8 arranged at the bottom 31 of the detection channel. Figure 12 As shown, the detection signal processing module can detect the following five types of pots at most based on the detection signals of the first plug spring, the second plug spring and the micro switch:

[0057] The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and cannot trigger the detection signal of the micro switch;

[0058] The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can both turn on the first plug spring to detect the detection signal and the second plug spring to detect the detection signal, but cannot trigger the detection signal of the micro switch;

[0059] The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can simultaneously connect the first and second plug springs to detect the detection signal, and can also trigger the detection signal of the micro switch;

[0060] The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and can also trigger the detection signal of the micro switch;

[0061] The fifth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the second plug spring conductive and thus detect the detection signal, but cannot make the first plug spring detect the detection signal, and at the same time can also trigger the detection signal of the micro switch. Example 5

[0062] The difference from the first embodiment is that the detection element includes a first insertion spring 6, a second insertion spring 7 and a third insertion spring 9 arranged at different depths in the detection channel 31. Figure 13 As shown, the detection signal processing module can detect the following five types of pots based on the detection signals of the first plug spring, the second plug spring, and the third plug spring:

[0063] The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only make the first plug spring conductive and thus detect the detection signal, but cannot make the second and third plug springs detect the detection signal;

[0064] The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can connect the first and second plug springs to detect the detection signal, but cannot enable the third plug spring to detect the detection signal;

[0065] The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can simultaneously connect the first plug spring, the second plug spring and the third plug spring to detect the detection signal;

[0066] The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the second plug spring to detect the detection signal, but cannot cause the first plug spring and the third plug spring to detect the detection signal;

[0067] Type 5: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the third plug spring to detect the detection signal, but cannot cause the first plug spring and the second plug spring to detect the detection signal;

[0068] Type 6: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only connect the second and third plug springs to detect the detection signal, but cannot cause the first plug spring to detect the detection signal;

[0069] The seventh type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the first plug spring and the third plug spring conductive to detect the detection signal, but cannot make the second plug spring detect the detection signal.

Claims

1. A pot identification structure of a cooking device, characterized in that include: The pot identification pins are provided on the pot body, and the lengths of the pot identification pins on different pot bodies are different, or the pot identification pins on different pot bodies are provided with insulating rubber sleeves of different positions or lengths; A pot body signal detection channel is provided on the base of the cooking device, and at least two detection elements are provided in different positions in the pot body signal detection channel; when pot body identification pins on different pots are inserted into the pot body signal detection channel, the detection elements at different positions in the pot body signal detection channel can detect the detection signal accordingly; a detection signal processing module electrically connected to all detection elements, the detection signal processing module being configured to: determine different pot types based on detection signals detected by detection elements at different positions; The detection element is an insertion spring, and a first insertion spring and a second insertion spring are provided at different depths in the pot body signal detection channel; or the detection element is an insertion spring, and a first insertion spring, a second insertion spring and a third insertion spring are provided at different depths in the pot body signal detection channel; or the detection element includes a first insertion spring and a second insertion spring arranged at different depths in the detection channel, and a micro switch arranged at the bottom of the detection channel.

2. The pot identification structure of the cooking device according to claim 1, characterized in that: When the detection element is a plug spring, and a first plug spring and a second plug spring are provided at different depths in the pot signal detection channel, the detection signal processing module can detect a maximum of the following three pot types based on the detection signals of the first plug spring and the second plug spring: The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only make the first plug spring conductive and thus detect the detection signal, but cannot make the second plug spring detect the detection signal; The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can both turn on the first plug spring to detect the detection signal and turn on the second plug spring to detect the detection signal; The third type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the second plug spring conductive and thus detect the detection signal, but cannot make the first plug spring detect the detection signal.

3. The pot identification structure of the cooking device according to claim 1, characterized in that: When the detection element is a plug spring, and a first plug spring, a second plug spring, and a third plug spring are provided at different depths in the pot signal detection channel, the detection signal processing module can detect a maximum of the following five pot types based on the detection signals of the first plug spring, the second plug spring, and the third plug spring: The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only make the first plug spring conductive and thus detect the detection signal, but cannot make the second and third plug springs detect the detection signal; The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can connect the first and second plug springs to detect the detection signal, but cannot enable the third plug spring to detect the detection signal; The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can simultaneously connect the first plug spring, the second plug spring and the third plug spring to detect the detection signal; The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the second plug spring to detect the detection signal, but cannot cause the first plug spring and the third plug spring to detect the detection signal; Type 5: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the third plug spring to detect the detection signal, but cannot cause the first plug spring and the second plug spring to detect the detection signal; Type 6: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only connect the second and third plug springs to detect the detection signal, but cannot cause the first plug spring to detect the detection signal; The seventh type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the first plug spring and the third plug spring conductive to detect the detection signal, but cannot make the second plug spring detect the detection signal.

4. The pot identification structure of a cooking device according to claim 1, characterized in that: When the detection element includes a first plug spring and a second plug spring disposed at different depths within the detection channel, and a micro switch disposed at the bottom of the detection channel, the detection signal processing module can detect a maximum of the following five types of pots based on the detection signals of the first plug spring, the second plug spring, and the micro switch: The first type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and cannot trigger the detection signal of the micro switch; The second type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can both turn on the first plug spring to detect the detection signal and the second plug spring to detect the detection signal, but cannot trigger the detection signal of the micro switch; The third type: The pot identification pin on the pot body is long enough that when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can simultaneously connect the first and second plug springs to detect the detection signal, and can also trigger the detection signal of the micro switch; The fourth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin and the position of the insulating rubber sleeve on the pot body meet the following requirements: when the pot body is placed on the machine base and the pot identification pin is inserted into the pot body signal detection channel, the pot identification pin can only turn on the first plug spring to detect the detection signal, but cannot cause the second plug spring to detect the detection signal, and can also trigger the detection signal of the micro switch; The fifth type: The pot identification pin on the pot body is provided with an insulating rubber sleeve, and the length of the pot identification pin on the pot body and the position of the insulating rubber sleeve meet the following requirements: when the pot body is placed on the machine base and the pot body identification pin is inserted into the pot body signal detection channel, the pot body identification pin can only make the second plug spring conductive and thus detect the detection signal, but cannot make the first plug spring detect the detection signal, and at the same time can also trigger the detection signal of the micro switch.

5. The pot identification structure of a cooking device according to any one of claims 1 to 4, characterized in that: The pot identification pin on the pot body is integrated on the upper coupler assembly fixed on the pot body; the pot body signal detection channel and the detection element are integrated on the lower coupler assembly fixed on the machine base.

6. A coupling device for a cooking device, comprising an upper coupler assembly fixed to a pot body and a lower coupler assembly disposed on a base of the cooking device, wherein when the pot body is placed on the base, the upper coupler assembly and the lower coupler assembly are plugged into each other, characterized in that: The upper coupler assembly is provided with a pot body identification pin, and the pot body identification pins on different pot bodies have different lengths, or the pot body identification pins on different pot bodies are provided with insulating rubber sleeves of different positions or lengths; the lower coupler assembly is correspondingly provided with a pot body signal detection channel, and at least two detection elements at different positions are provided in the pot body signal detection channel; after the pot body identification pins on different pot bodies are inserted into the pot body signal detection channel, the detection elements at different positions in the pot body signal detection channel can detect the detection signal; the detection element is a plug spring, and a first plug spring and a second plug spring are provided at different depths in the pot body signal detection channel; or the detection element is a plug spring, and a first plug spring, a second plug spring and a third plug spring are provided at different depths in the pot body signal detection channel; or the detection element includes a first plug spring and a second plug spring arranged at different depths in the detection channel, and a micro switch arranged at the bottom of the detection channel.

7. The coupling device according to claim 6, characterized in that: In addition to the pot body identification pin, the upper coupler assembly is also provided with five pins, two of which are respectively connected to the two ends of the heating element arranged on the pot body, one of which is used for grounding, and the other two are respectively connected to the two ends of the temperature detection element arranged on the pot body; correspondingly, in addition to the pot body signal detection channel, the lower coupler assembly is also provided with five detection channels, and each of the five detection channels is provided with a plug spring.

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