A fully automatic cooking machine
By introducing a three-stage temperature control device into the cooking machine, and using thermistors and thermal fuses in conjunction with the main control PCB board to achieve real-time monitoring and control of the pot temperature, the problem of excessive temperature is solved, ensuring the safety and reliability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN COOLKE INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-23
AI Technical Summary
The temperature control of existing cooking machines is difficult to be precise. When the temperature sensor malfunctions, it can easily cause the pot to overheat, which may damage the equipment.
A three-stage temperature control device is adopted, including a first thermistor, a second thermistor, and a thermal fuse. Combined with the main control PCB board and the electromagnetic heating PCB board, it realizes real-time monitoring and control of the pot body temperature, and automatically melts to stop heating when the temperature is too high.
It achieves precise control of the pot temperature, avoiding equipment damage caused by excessive temperature and improving the safety and reliability of the cooking machine.
Smart Images

Figure CN224387190U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic cooking technology, specifically a fully automatic stir-fry machine. Background Technology
[0002] With the continuous improvement of living standards, automatic cooking machines, as intelligent home appliances, are gradually entering the public eye. Existing automatic cooking machines can achieve automatic heating, automatic stir-frying and automatic ingredient feeding, thus realizing the automatic cooking of dishes. For example, the patent with publication number CN217987278U, entitled "Automatic Cooking Machine", discloses that the stirring blade rotates in the wok under the drive of the motor, realizing the automatic stir-frying of raw materials.
[0003] For example, the patent with publication number CN218960537U, entitled "An Automatic Film Removal Mechanism for Automatic Cooking Machine", discloses an automatic film removal mechanism, which includes a motor, a clutch gear set and a film removal rod. The motor drives the film removal rod to rotate through the clutch gear set to achieve film removal.
[0004] For example, the patent with publication number CN220308942U, entitled "An Automatic Cooking Machine with a Detachable Top Cover Mechanism," discloses an automatic cooking machine body and a top cover. The automatic cooking machine body is provided with a fixing block, and the bottom of the top cover has a first groove corresponding to the fixing block. A rotating shaft is provided inside the fixing block, and both ends of the rotating shaft pass through the fixing block. The bottom of the top cover has a second groove corresponding to the rotating shaft at both ends of the first groove. Notches are also provided at both ends of the fixing block. Arc-shaped slides communicating with the notches are provided below the notches at both ends of the fixing block. Limiting protrusions are provided at both ends of the first groove of the top cover. The limiting protrusions can enter the arc-shaped slides through the notches and slide within the arc-shaped slides. By providing notches, rotating shafts, and arc-shaped slides on the fixing block, and cooperating with the limiting protrusions and grooves on the top cover, the top cover can be detachably installed.
[0005] For example, the patent with publication number CN217938014U, entitled "Automatic Cooking Machine, Vegetable Box and Top Lid Food Dispensing Device," discloses a box body and a box film. The box film covers the opening of the box body, and the box body has multiple rows of ingredient areas. Each row of ingredient areas has multiple ingredient slots. Corresponding grooves are provided at the opening of the box body and on one side of each row of ingredient areas. The vegetable box has through holes that interact with the automatic film-removing device to improve the film-removing efficiency. It can be seen that most cooking machines in the prior art use a primary temperature control device, that is, a temperature sensor to detect the temperature and send it back to the control system to control the heating temperature. However, if the temperature sensor malfunctions, it is difficult to collect and control the heating temperature, which will cause the pot body to be heated too high, and in severe cases, it will cause damage to the entire device. Utility Model Content
[0006] In order to solve the technical problem of the difficulty in controlling the excessively high temperature of cooking machines in the prior art, this utility model provides a fully automatic cooking machine.
[0007] The technical solution adopted by this utility model to achieve the above-mentioned objectives is as follows: a fully automatic cooking machine, including a body and a top cover, wherein the body and the top cover are detachably connected, the body is provided with a pot and a first motor, a stirring claw is rotatably provided at the center of the pot, the output end of the first motor is provided with a drive shaft, the drive shaft passes through the pot and is connected to the stirring claw, the top cover is provided with a vegetable box and an automatic film tearing device, and the body is also provided with a three-level temperature control device, which is located below the pot.
[0008] Preferably, the device also includes a main control PCB board. The three-stage temperature control device includes a heating plate, on which a first thermistor, a second thermistor, a thermal fuse, and an electromagnetic heating PCB board are provided. The first thermistor, the second thermistor, and the thermal fuse are all in contact with the bottom of the pot body. The first thermistor is electrically connected to the main control PCB board, the main control PCB board is electrically connected to the electromagnetic heating PCB board, the second thermistor is electrically connected to the electromagnetic heating PCB board, the electromagnetic heating PCB board is electrically connected to the heating plate, and the thermal fuse is disposed between the electromagnetic heating PCB board and the heating plate.
[0009] Preferably, the main control PCB board includes a first AD converter module and a first MCU microcontroller unit. A first thermistor is electrically connected to the first AD converter module, and the first AD converter module is connected to the first MCU microcontroller unit. The electromagnetic heating PCB board includes a second AD converter module, a second MCU microcontroller unit, and a power control module. The second thermistor is connected to the second AD converter module, the second AD converter module is connected to the second MCU microcontroller unit, the second MCU microcontroller unit is connected to the power control module, and the power control module is connected to the heating plate.
[0010] Preferably, a camera is provided on the outer surface of the machine body.
[0011] Preferably, the drive shaft and the stirring claw are connected by a cross-shaped snap fastener.
[0012] Preferably, both the first thermistor and the second thermistor are NTC type thermistors.
[0013] Compared with the prior art, the advantages of this utility model are as follows: by setting a three-level temperature control device, the first and second thermistors can realize real-time monitoring and feedback of the pot body temperature. The main control PCB board and the electromagnetic heating PCB board can control the heating plate and adjust the temperature in time to avoid the pot body temperature from being too high. At the same time, a thermal fuse is set. When the pot body temperature exceeds the set temperature of the thermal fuse, the thermal fuse will automatically melt and the heating plate will stop heating. The first thermistor, the second thermistor, and the thermal fuse can provide triple protection for the pot body temperature and improve the pot body temperature control capability. An automatic film tearing device is set on the top cover to realize automatic feeding. Attached Figure Description
[0014] Figure 1 This is a diagram showing the usage status of a fully automatic cooking machine according to this utility model.
[0015] Figure 2 This is an exploded view of a fully automatic cooking machine according to this utility model.
[0016] Figure 3 This is a front view of a fully automatic cooking machine according to this utility model.
[0017] Figure 4 This is a cross-sectional view of the internal structure of a fully automatic cooking machine according to this utility model.
[0018] Figure 5 This is a schematic diagram of the structure of a three-stage temperature control device for a fully automatic cooking machine according to this utility model.
[0019] Figure 6 This is a schematic diagram of the main control PCB board and electromagnetic heating PCB board internal modules of a fully automatic cooking machine according to this utility model.
[0020] Figure 7 This is a top view of a three-stage temperature control device for a fully automatic cooking machine according to this utility model.
[0021] In the diagram: 1. Main body; 2. Top cover; 3. Pot body; 4. Stirring claw; 5. Automatic film-tearing device; 6. Three-stage temperature control device; 601. Thermal fuse; 602. Second thermistor; 603. First thermistor; 604. Electromagnetic heating PCB board; 605. Heating plate; 7. Vegetable box; 8. Camera; 9. First motor; 10. Drive shaft; 11. Main control PCB board. Detailed Implementation
[0022] The specific implementation of this utility model of a fully automatic stir-fry machine is as follows: Figures 1 to 6As shown, the device includes a body 1 and a top cover 2, which are detachably connected. Inside the body 1, there is a pot body 3 and a first motor 9. A stirring claw 4 is rotatably mounted at the center of the pot body 3. The output end of the first motor 9 is provided with a drive shaft 10, which passes through the pot body 3 and is connected to the stirring claw 4. The top cover 2 is provided with a food container 7 and an automatic film-tearing device 5. The body 1 is also provided with a three-stage temperature control device 6, which is located below the pot body 3. The device also includes a main control PCB board 11. The three-stage temperature control device 6 includes a heating plate 605, which is located between the first motor 9 and the pot body 3. The drive shaft of the first motor 9 passes through the heating plate 605 and the pot body 3 and is connected to the stirring claw 4. The drive shaft 10 and the stirring claw 4 are connected by a cross-shaped buckle.
[0023] The heating plate 605 is equipped with a first thermistor 603, a second thermistor 602, a thermal fuse 601, and an electromagnetic heating PCB board 604. The first thermistor 603, the second thermistor 602, and the thermal fuse 601 are all in contact with the bottom of the pot body 3. The main control PCB board 11 includes a first AD converter module and a first MCU microcontroller unit. The first thermistor 603 is electrically connected to the first AD converter module, and the first AD converter module is electrically connected to the first MCU microcontroller unit. The electromagnetic heating PCB board 604 includes a second AD converter module... The second MCU microcontroller unit and the power control module are connected. The first MCU microcontroller unit and the second AD converter module are connected via a serial port. The second thermistor 602 is connected to the second AD converter module. The second AD converter module is connected to the second MCU microcontroller unit. The second MCU microcontroller unit is connected to the power control module. The power control module is connected to the heating plate 605. The thermal fuse 601 is electrically connected between the electromagnetic heating PCB board 604 and the heating plate 605. The first thermistor 603 and the second thermistor 602 are both NTC type thermistors.
[0024] A camera 8 is provided on the outer surface of the device 1. The camera 8 is used to scan the QR code of the digital recipe used in conjunction with this device.
[0025] Working principle: The camera 8 scans the QR code of the accompanying digital recipe to obtain the recipe and activates the heating plate 605, which heats the pot body 3. Simultaneously, the automatic film-tearing device 5 tears the film, and together with the food container 7, controls the entry of different ingredients into the pot body 3. The first motor 9, via the drive shaft 10, drives the stirring claw 4 to rotate, thus achieving the stirring of the ingredients inside the pot body 3. During the heating process of the pot body 3 by the heating plate 605, the resistance value of the first thermistor 603 changes with the temperature of the pot body 3. The first AD converter module in the main control PCB board 11 collects the voltage value of the first thermistor 603, converts it into temperature data, and transmits it to the first MCU microcontroller unit. The first MCU microcontroller unit compares this with the preset temperature and transmits the signal via serial port to the second AD converter in the electromagnetic heating PCB board. The second AD converter module transmits signals to the second MCU microcontroller unit, which in turn transmits signals to the power control module. The power control module controls whether the power of the heating plate increases or decreases. If the first thermistor 603 fails, the second AD sensor module in the electromagnetic heating PCB board 604 collects the voltage of the second thermistor 602, converts it into temperature data, and transmits it to the second MCU microcontroller unit. The second MCU microcontroller unit compares the temperature with the preset temperature and transmits the control signal to the power control module. The power control module controls whether the power of the heating plate increases or decreases. If both the first thermistor 603 and the second thermistor 602 fail and the temperature exceeds the set temperature of the thermal fuse 601, the thermal fuse 601 blows, the heating plate 605 is disconnected from the electromagnetic heating PCB board, and the heating of the pot body 3 stops.
Claims
1. A full-automatic cooking machine, comprising a machine body (1) and a top cover (2), the machine body (1) and the top cover (2) are detachably connected, a pot body (3) and a first motor (9) are arranged in the machine body (1), a stirring claw (4) is rotatably arranged at the center of the pot body (3), a driving shaft (10) is arranged at the output end of the first motor (9), the driving shaft (10) penetrates the pot body (3) and is connected with the stirring claw (4), a vegetable box (7) and an automatic film tearing device (5) are arranged on the top cover (2), characterized in that, The body (1) is also equipped with a three-stage temperature control device (6), which is located below the pot body (3) and includes a main control PCB board (11). The three-stage temperature control device (6) includes a heating plate (605), on which a first thermistor (603), a second thermistor (602), a thermal fuse (601) and an electromagnetic heating PCB board (604) are provided. 01) All are in contact with the bottom of the pot body (3). The first thermistor (603) is electrically connected to the main control PCB board (11). The main control PCB board (11) is electrically connected to the electromagnetic heating PCB board (604). The second thermistor (602) is electrically connected to the electromagnetic heating PCB board (604). The electromagnetic heating PCB board (604) is electrically connected to the heating plate (605). The thermal fuse (601) is electrically connected between the electromagnetic heating PCB board (604) and the heating plate (605).
2. The full-automatic cooking machine according to claim 1, characterized in that, The main control PCB board (11) includes a first AD converter module and a first MCU microcontroller unit. A first thermistor (603) is electrically connected to the first AD converter module. The first AD converter module is connected to the first MCU microcontroller unit. The electromagnetic heating PCB board (604) includes a second AD converter module, a second MCU microcontroller unit, and a power control module. The first MCU microcontroller unit is connected to the second AD converter module via a serial port. The second thermistor (602) is connected to the second AD converter module. The second AD converter module is connected to the second MCU microcontroller unit. The second MCU microcontroller unit is connected to the power control module. The power control module is connected to the heating plate (605).
3. The full-automatic cooking machine according to claim 1, characterized in that, The outer surface of the body (1) is equipped with a camera (8).
4. The full-automatic cooking machine according to claim 1, characterized in that, The drive shaft (10) and the stirring claw (4) are connected by a cross snap fastener.
5. The full-automatic cooking machine according to claim 1, characterized in that, Both the first thermistor (603) and the second thermistor (602) are NTC type thermistors.