CN209966067U - Cooking utensil - Google Patents
Cooking utensil Download PDFInfo
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- CN209966067U CN209966067U CN201822244718.1U CN201822244718U CN209966067U CN 209966067 U CN209966067 U CN 209966067U CN 201822244718 U CN201822244718 U CN 201822244718U CN 209966067 U CN209966067 U CN 209966067U
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Abstract
The utility model provides a cooking appliance, which comprises a water tank, a water tank and a cooking water tank, wherein the water tank is used for storing cooking water; the elastic element is used for supporting the water tank, and the water tank can move along the deformation direction of the elastic element; a detection circuit for acquiring a detection signal related to deformation of the elastic element; a control unit that determines a weight of the water tank according to the detection signal. According to the utility model discloses a cooking utensil passes through elastic element and supports the water tank, therefore elastic element's deformation is relevant with the weight of water tank, consequently accessible detection circuitry acquire with the relevant detected signal of elastic element's deformation can confirm the weight of water tank according to this detected signal, and then can confirm water yield or water level in the water tank according to the weight of water tank.
Description
Technical Field
The utility model relates to the technical field of household appliances, more specifically, the utility model relates to a cooking utensil.
Background
With the improvement of living standards, cooking appliances such as electric cookers are increasingly used, and the degree of automation and intelligence of the cooking appliances is also increasing. An automatic cooking utensil has appeared on the existing market, and automatic cooking utensil is provided with the water tank device, has water piping connection between automatic cooking utensil's culinary art cavity (the pot in promptly) and the water tank, and main control chip adds water in from the water tank to cooking utensil's the culinary art cavity through the control water pump, realizes adding water automatically, no longer needs the consumer to add water in toward cooking utensil to cooking utensil's degree of automation has been improved.
However, such automatic cooking appliances generally do not have a water level detection function, and thus the level (or number of water levels) of the water in the water tank is not known, that is, the amount of water in the water tank is not known. If the current water yield in the water tank is not enough to cook the cooking function selected by the consumer, and the main control chip of the automatic cooking appliance cannot know the conditions, the prompt message that the water yield in the water tank is not enough can not be sent to the consumer, so that the experience of the consumer is reduced.
Therefore, there is a need for a cooking appliance that at least partially solves the problems of the prior art.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a cooking utensil, its weight through the weight that detects the water tank confirms the weight of the water in the water tank to whether can confirm the water yield in the water tank and satisfy the culinary art demand and confirm the volume of adding water according to the change of water weight.
The utility model provides a cooking utensil, cooking utensil includes: a water tank for storing cooking water; the elastic element is used for supporting the water tank, and the water tank can move along the deformation direction of the elastic element; a detection circuit for acquiring a detection signal related to deformation of the elastic element; a control unit that determines a weight of the water tank according to the detection signal.
According to the utility model discloses a cooking utensil passes through elastic element and supports the water tank, therefore elastic element's deformation is relevant with the weight of water tank, consequently accessible detection circuitry acquire with the relevant detected signal of elastic element's deformation can confirm the weight of water tank according to this detected signal, and then can confirm water yield or water level in the water tank according to the weight of water tank.
The utility model discloses an embodiment, detection circuitry includes series connection's variable resistor and fixed resistor, the gleitbretter of variable resistor with the water tank is connected and is made the resistance of variable resistor is followed the weight change of water tank, be provided with the check point between variable resistor and the fixed resistor. In this way, the position of the variable resistor slide is determined by detecting the resistance value of the variable resistor, so that the deformation amount of the elastic element is determined according to the position of the variable resistor slide, then the weight of the water tank can be determined according to the deformation amount of the elastic element, and the water quantity or the water level in the water tank can be determined according to the weight of the water tank.
In an embodiment of the present invention, the variable resistor is disposed along a deformation direction of the elastic element so that the slider slides along the deformation direction of the elastic element. Arranged in this way, the amount of deformation of the resilient element, and hence the weight of the water tank and the weight of the water in the tank, can be determined by determining the resistance of the variable resistor.
In an embodiment of the present invention, the sliding piece of the variable resistor is connected to a working power supply, one end of the fixed resistor is grounded, and the other end is connected to the variable resistor.
In an embodiment of the present invention, the sliding piece of the variable resistor is grounded, one end of the fixed resistor is connected to the working power supply, and the other end of the fixed resistor is connected to the variable resistor.
In an embodiment of the present invention, one end of the elastic member abuts against the bottom or the side of the water tank.
In an embodiment of the present invention, the water tank is connected to the sliding piece of the variable resistor through a connecting rod. The displacement of the water tank is related to the displacement of the sliding piece, so that the displacement of the water tank can be determined according to the position of the sliding piece, and the weight of the water tank can be determined according to the displacement of the water tank.
In an embodiment of the present invention, the control unit is further configured to determine an amount of water added at the time of cooking according to a change in the weight of the water tank. With the arrangement, the water adding amount can be simply and conveniently determined, so that the user experience of the automatic water adding function of the cooking appliance can be improved.
In an embodiment of the present invention, the present invention further includes: the prompting unit is used for prompting cooking information to a user;
the control unit is further configured to determine whether the amount of water in the water tank meets a cooking requirement and instruct the prompting unit to prompt a user to add water into the water tank when it is determined that the amount of water in the water tank does not meet the cooking requirement. With this kind of mode setting, can indicate the user to add water in the water tank when the water in the water tank is not full of the culinary art demand to user's use experience has been improved.
In an embodiment of the present invention, the control unit is further configured to determine whether the weight of the water tank is changed in the cooking process and indicate when the weight of the water tank is not changed in the cooking process to prompt the user that there is an abnormal situation. With this kind of mode setting, can judge cooking utensil's automatic function of adding water whether to store unusually simply and conveniently to indicate the user when the abnormal conditions, improved user's use experience.
The utility model relates to an embodiment, unusual condition includes that the motor is unusual, water freezes in the water tank.
Drawings
The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions of the invention, which are used to explain the principles and devices of the invention. In the drawings, there is shown in the drawings,
fig. 1 is a schematic structural view of a cooking appliance according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a cooking appliance according to an embodiment of the present invention;
fig. 3A is a circuit diagram of a detection circuit according to an embodiment of the present invention;
fig. 3B is another circuit schematic of a detection circuit according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a connection between a water tank and a detection circuit of a cooking appliance according to an embodiment of the present invention; and
fig. 5 is a schematic flowchart of a control method of a cooking appliance according to an embodiment of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the present invention.
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It is apparent that the practice of the invention is not limited to the specific details known to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
The utility model provides a cooking utensil. The cooking appliance may be an electric rice cooker, an electric pressure cooker or other electric heating appliance. In addition, the cooking appliance may have other functions such as cooking porridge and cooking soup in addition to the function of cooking rice.
Fig. 1 is a schematic structural view of a cooking appliance according to an embodiment of the present invention.
As shown in fig. 1, the cooking appliance 100 includes a pot body 110. The pot body 110 may have a generally rounded rectangular parallelepiped shape, a generally cylindrical shape, or any other suitable shape. The pot body 110 has a cooking cavity 120 formed therein. As an example, the cooking cavity 120 may be formed of an inner pot (not shown) provided inside the pot body 110 and a cover (not shown) provided on the pot body 110. Illustratively, the inner pot is generally cylindrical in shape or any other suitable shape. The inner pot can be freely put into or taken out of the inner pot receiving part of the pot body 110 to facilitate the cleaning of the inner pot. The inner pot is used for storing food to be cooked, such as rice, soup, etc. The top of the inner pot is provided with a top opening. The user can store food to be cooked in the inner pot through the top opening or take cooked food out of the inner pot through the top opening. Illustratively, the shape of the cover substantially corresponds to the shape of the pot body 110. For example, the cover may have a rounded rectangular parallelepiped shape. The lid body is provided on the pot body 110 in an openable and closable manner, and is used to cover the entire top of the pot body or at least the inner pot of the pot body 110. Specifically, in the present embodiment, the lid body may be pivotably provided above the pot body 110 between the maximum open position and the closed position by, for example, a hinge. When the cover body is covered on the pot body, the cooking cavity is formed between the cover body and the pot body 110 (specifically, the inner pot of the pot body 110). Furthermore, the cover body is also provided with an exhaust port communicated with the cooking space, and redundant steam in the cooking space can be exhausted through the exhaust port, so that the pressure in the cooking cavity is maintained in a required range.
The pot body 110 is further provided therein with a heating means for heating the cooking cavity/inner pot. The heating means may heat the cooking cavity/inner pot at the bottom and/or side of the cooking cavity/inner pot. The heating device may be an electrically heated tube or may be an induction heating device such as a solenoid coil. The cooker body 110 is further provided with a temperature measuring device for measuring the temperature of the cooking cavity/inner pot. The temperature measuring device can be various temperature sensors, and can measure the temperature of the cooking cavity/inner pot, so that the temperature can be conveniently controlled according to the temperature heating device of the cooking cavity/inner pot. Exemplarily, in this embodiment, the temperature measuring device is arranged at the bottom of the cooking cavity/inner pot. However, it should be understood that in other embodiments the temperature measuring device may be arranged at other locations, for example at the side of the cooking cavity/inner pot, or at both the bottom and the side of the cooking cavity/inner pot.
Referring again to fig. 1, the cooking appliance 100 further includes a water tank 130 disposed on the pot body 110, and the water tank 130 has a generally cylindrical shape or any other suitable shape. The water tank 130 is for storing cooking water, and the water tank 130 may be provided at the rear end of the pot body 110 or any other suitable position. The water tank 130 is mounted and secured in place using suitable electromechanical structures. The water tank 130 communicates with the cooking chamber through a water inlet line 140. The water inlet line 140 has a water inlet in communication with the water tank 130 and a water outlet in communication with the cooking chamber 120. The water inlet pipe 140 may be provided in the pot body 110 or in the lid, or a portion thereof is located in the pot body 110 and a portion thereof is located in the lid. As an example, the water inlet is provided in the pot body 110, and the water outlet is provided in the lid or the pot body.
Further, a water pump is further arranged in the cooker body 110, water can be automatically added into the cooking cavity 120 of the cooking appliance 100 from the water tank 130 by controlling the water pump, a consumer is not required to add water into the cooking cavity, and the automation degree of the cooking appliance is improved.
Fig. 2 is a schematic block diagram of a cooking appliance according to an embodiment of the present invention. As shown in fig. 2, the cooking appliance 100 further includes a detection circuit 150, a control unit 160, and a prompt unit 170.
The detection circuit 150 is used to detect a detection signal related to the weight of the water tank 130. Illustratively, in the present embodiment, the sensing circuit 150 includes a variable resistor R1 and a fixed resistor R2 connected in series, and a slider of the variable resistor R1 is connected to the water tank 130 such that the resistance value of the variable resistor R1 varies with the weight of the water tank 130. The detection signal is a voltage signal between the variable resistor R1 and the fixed resistor R2. In one connection mode of the detection circuit 150, as shown in fig. 3A, the slider of the variable resistor R1 is connected to the operating power VCC, one end of the fixed resistor R2 is grounded GND, and the other end is connected to the variable resistor R1. In another connection mode of the detection circuit 150, as shown in fig. 3B, the slider of the variable resistor R1 is grounded GND, one end of the fixed resistor R2 is connected to the operating power VCC, and the other end is connected to the variable resistor R1. Illustratively, the variable resistor R1 is, for example, a sliding varistor.
The control unit 160 may employ various controllers, such as various suitable Microcontrollers (MCUs) or other types of controllers or processors.
In the present embodiment, the control unit 160 is configured to determine the weight of the water tank 130 according to the detection signal, and thus the amount of water in the water tank 130 according to the weight of the water tank 130. Specifically, a detection point is disposed between the variable resistor R1 and the fixed resistor R2, and the control unit 160 is connected to the detection point, and determines the resistance value of the variable resistor R1 according to a detection signal of the detection point, and further determines the weight of the water tank 130 according to the resistance value of the variable resistor R1. It should be noted that, in this context, unless otherwise specified, the weight of the water tank 130 refers to the weight of the water tank itself plus the weight of the water in the water tank.
The principle of determining the weight of the water tank 130 in the present embodiment will be described below with reference to fig. 4.
As shown in fig. 4, the cooking appliance 100 in the present embodiment further includes an elastic member 131 for supporting the water tank 130. Exemplarily, in the present embodiment, the elastic member 131 is disposed at the bottom of the water tank 130. Of course, in other embodiments, the elastic member 131 may be disposed at a side portion of the water tank 130. Illustratively, the elastic element 131 is a spring.
The deformation of the elastic member 131 varies with the weight of the water tank 130. The water tank 130 is connected to the slider 10 of the variable resistor R1 through a link 132, and the variable resistor R1 is disposed along the deformation direction of the elastic member 131 so that the slider 10 slides along the deformation direction of the elastic member 131. In this embodiment, the height of the elastic element 131 is flush with the top of the winding of the variable resistor R1 when the elastic element is not deformed.
Different weights of the water tank 130 may cause different amounts of deformation of the elastic element 131. The elastic force F of the elastic element 131 is obtained according to the deformation X and the formula F × K, and the elastic force F is equal to the gravity of the water tank 130, and the balance forces in opposite directions, i.e. the weight of the water tank 130 is also K × X. Further, the water tank 130 may cause the elastic member 131 to be deformed downward or upward due to the change in weight, causing the water tank 130 to move up and down, since the water tank 130 is fixedly connected to the slider 10 of the variable resistor R1 through the connecting rod 132, therefore, the sliding piece 10 of the variable resistor R1 will slide upwards or downwards, the resistance value of the sliding piece 10 of the variable resistor R1 to one end will change, further, the voltage at the detection point between the variable resistor R1 and the fixed resistor R2 is changed, the control unit 160 measures the voltage at the detection point through the AD port, and then the resistance value of the variable resistor R1 at this time can be calculated according to the voltage change at the point, and the position of the slide 10 can be calculated, so that the deformation amount x of the elastic element 131 can be calculated, then, the weight of the water outlet tank 130 can be calculated according to the elastic coefficient of the elastic element 131 and the displacement of the elastic element 131, so that the change of the water amount in the water outlet tank 130 can be calculated in real time.
Illustratively, the specific process of calculating the amount of water in the water tank 130 is as follows: when the voltage V0 at the detecting point is calculated through the AD port of the control unit 160, and then the detecting circuit 150 is connected as shown in fig. 3A, the formula for calculating R1 is that V0 is R2 VCC/(R1+ R2), and then R1 is R2 (VCC-V0)/V0, and R2 is a fixed known resistance value, and the specific resistance value Rx of R1 can be calculated according to the company. When the detection circuit 150 is connected as shown in fig. 3B, the formula for calculating R1 is represented by V0 ═ R1 × VCC/(R1+ R2) to obtain R1 ═ V0 × R2 (VCC-V0), and R2 is a fixed known resistance value, and the specific resistance value Rx of R1 can be calculated according to the formula. Then, assuming that the maximum resistance value of the variable resistor R1 is Rmax and the total length of the winding of the variable resistor R1 is L, the height Lx of the position where the slider 10 is located is L Rx/Rmax, the deformation amount of the elastic element 131 is L-Lx, the weight of water added into the water tank 130 is (L-Lx) K, the weight of the water tank 130 is a fixed known weight M, and the weight of water is (L-Lx) K-M, where K is the elastic coefficient of the elastic element 131.
Further, in the present embodiment, the control unit 160 is further configured to determine the amount of water added at the time of cooking according to the change in the weight of the water tank. For example, when 1KG of water is needed, the current total weight M0 of the water tank and the water is recorded before pumping water, then the pumping time is started until the total weight M0-1 KG of the water tank and the water tank is measured, the pumping is finished, and then cooking is started.
Further, after the user selects the cooking amount and the cooking type, the control unit 160 calculates the ratio of the amount of food to the amount of water and the weight of each, and then calculates whether the current amount of water in the water tank meets the cooking requirement, and if the amount of water is not enough, the user is timely reminded to add water into the water tank. That is, in the present embodiment, the control unit 160 is further configured to determine whether the amount of water in the water tank 130 satisfies the cooking requirement and instruct the prompting unit 170 to prompt the user to add water into the water tank 130 when it is determined that the amount of water in the water tank 130 cannot satisfy the cooking requirement.
Further, when the water pump starts to pump water, the water in the water tank is frozen, and the water pump motor is abnormal, so that the weight of the water in the water tank is not changed, and the user is timely reminded if the weight of the water in the water tank is not changed. In the present embodiment, the control unit 160 is further configured to determine whether there is a change in the weight of the water tank 130 during the cooking process and instruct the prompt unit 170 to prompt the user that there is an abnormal situation when it is determined that there is no change in the weight of the water tank 130 during the cooking process. The abnormal conditions comprise motor abnormality and water in the water tank freezing. In an exemplary manner, the first and second electrodes are,
the presentation unit 170 is used to present cooking information to the user. The prompt unit 170 includes an LED lamp, a four-position eight-segment nixie tube, a buzzer/speaker or other devices, and is used for displaying cooking time and status set by a user or during cooking, and prompting the cooking status of the user through buzzer or voice. In the present embodiment, the prompting unit 170 prompts the user to add water into the water tank 130 when the control unit 160 determines that the amount of water in the water tank 130 cannot satisfy the cooking requirement. The prompting unit 170 prompts the user that there is an abnormal situation when the control unit 160 determines that there is no change in the weight of the water tank 130 during cooking.
Fig. 5 is a schematic flowchart of a control method of a cooking appliance according to an embodiment of the present invention.
The control method of the cooking appliance shown in fig. 5 includes:
step 101, determining the weight and amount of water in the water tank.
The deformation of the elastic element is determined through the detection circuit, then the total weight of the water tank is determined according to the deformation of the elastic element, and the water quantity in the water tank is further determined according to the weight of the water tank.
And step S102, judging whether the quantity in the water tank meets the cooking requirement.
After the user selects the cooking amount and the cooking type, the proportion of the food amount and the water amount and the respective weight are calculated, then whether the current water amount in the water tank meets the cooking requirement is calculated, and if the water amount is not enough, the step S103 is carried out, and the user is reminded to add water into the water tank in time.
And if the current water quantity in the water tank meets the cooking requirement, the step S104 is carried out.
And step S104, starting to add water, and judging whether the weight of the water tank is changed.
When the water quantity in the current water tank meets the cooking requirement, water is added into the cooking cavity, for example, a water pump is started to pump water into the cooking cavity. And judging whether the weight of the water tank changes or not in the water adding process.
If the weight of the water tank does not change in the water adding process, the abnormal conditions exist, such as the water in the water tank is frozen, the motor is abnormal, and the like, at this time, the step S105 is carried out, and the user is prompted that the abnormal conditions exist.
If there is a change in the tank weight during the water addition, the process proceeds to step S106.
And step S106, determining the water adding amount according to the weight change of the water tank, and stopping adding water when the set amount is reached.
For example, a change in the weight of the tank of 0.5Kg indicates that 0.5Kg of water has been added. If 1Kg of water is required, the addition of water is stopped when the weight of the water tank is reduced by 1 Kg.
In step S107, cooking is started.
When the water and food materials are added, cooking is started.
According to the utility model discloses a cooking utensil is through detecting the resistance of variable resistance, confirms the position of variable resistance gleitbretter to the deformation volume of elastic element is confirmed according to the position of variable resistance gleitbretter, then can confirm the weight of water tank according to elastic element's deformation volume, water yield or water level in can confirming the water tank according to the weight of water tank.
Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "part," "member," and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.
The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A cooking appliance, characterized in that it comprises:
a water tank for storing cooking water;
the elastic element is used for supporting the water tank, and the water tank can move along the deformation direction of the elastic element;
a detection circuit for acquiring a detection signal related to deformation of the elastic element;
a control unit that determines a weight of the water tank according to the detection signal.
2. The cooking appliance according to claim 1, wherein the detection circuit comprises a variable resistor and a fixed resistor connected in series, a slide of the variable resistor is connected with the water tank so that a resistance value of the variable resistor varies with a weight of the water tank, and a detection point is provided between the variable resistor and the fixed resistor.
3. The cooking appliance according to claim 2, wherein the variable resistor is disposed along a deformation direction of the elastic member to slide the slider in the deformation direction of the elastic member.
4. The cooking appliance according to claim 2, wherein the sliding piece of the variable resistor is connected to an operating power source, and one end of the fixed resistor is grounded and the other end is connected to the variable resistor.
5. The cooking appliance according to claim 2, wherein the sliding piece of the variable resistor is grounded, and one end of the fixed resistor is connected to an operating power supply and the other end is connected to the variable resistor.
6. The cooking appliance of claim 1, wherein one end of the elastic member abuts against a bottom or a side of the water tank.
7. The cooking appliance of claim 2, wherein the water tank is connected to the slider of the variable resistor by a linkage.
8. The cooking appliance of claim 1, wherein the control unit is further configured to determine an amount of water added while cooking based on a change in weight of the water tank.
9. The cooking appliance of claim 1, further comprising:
the prompting unit is used for prompting cooking information to a user;
the control unit is further configured to determine whether the amount of water in the water tank meets a cooking requirement and instruct the prompting unit to prompt a user to add water into the water tank when it is determined that the amount of water in the water tank does not meet the cooking requirement.
10. The cooking appliance of claim 9, wherein the control unit is further configured to determine whether there is a change in the weight of the water tank during cooking and to instruct the prompting unit to prompt the user for an abnormal condition when it is determined that there is no change in the weight of the water tank during cooking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822244718.1U CN209966067U (en) | 2018-12-28 | 2018-12-28 | Cooking utensil |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822244718.1U CN209966067U (en) | 2018-12-28 | 2018-12-28 | Cooking utensil |
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| CN209966067U true CN209966067U (en) | 2020-01-21 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113068996A (en) * | 2021-03-10 | 2021-07-06 | 华帝股份有限公司 | Mechanical weighing device applied to cooking equipment |
| CN114305073A (en) * | 2021-12-10 | 2022-04-12 | 福满门家居工贸江苏有限公司 | Automatic water-adding electric cooker capable of preventing overflow |
| WO2022105905A1 (en) * | 2020-11-23 | 2022-05-27 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, operating control method therefor, controller, and readable storage medium |
-
2018
- 2018-12-28 CN CN201822244718.1U patent/CN209966067U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022105905A1 (en) * | 2020-11-23 | 2022-05-27 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance, operating control method therefor, controller, and readable storage medium |
| CN113068996A (en) * | 2021-03-10 | 2021-07-06 | 华帝股份有限公司 | Mechanical weighing device applied to cooking equipment |
| CN114305073A (en) * | 2021-12-10 | 2022-04-12 | 福满门家居工贸江苏有限公司 | Automatic water-adding electric cooker capable of preventing overflow |
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