CN204600157U - A kind of electric cooker - Google Patents

Abstract

The utility model relates to an electric rice cooker. The electric rice cooker includes a cooker body, a cooker cover and an inner tank, and is also provided with a weighing device connected electrically with a single-chip electromechanical device, a cover-opening state detection device, a temperature detection device and an operation panel. The single-chip computer is also electrically connected with a reminder device. Connection; when the rice cooker is in use, it can first carry out automatic reminder control, and then judge whether the user puts in the food, the state of the rice cooker closed, the temperature state of the food and the user's operation state, confirm the situation of the food cooked by the rice cooker, and let the user confirm the rice cooker again. When the usage status meets the requirements, a reminder message can also be sent to prompt the user to start. The scheme design idea of the utility model is ingenious, and the design scheme is simple and reliable.

Description

a rice cooker

technical field

The utility model relates to an electric rice cooker, in particular to an electric rice cooker capable of automatic reminder.

Background technique

In the market research of rice cooker products, it is found that with the development trend of China's aging population and the increasingly fast-paced social life, it is easy to cause people to have habitual or occasional amnesia symptoms. The common feature is that they are more likely to forget things. What you remember to do in one moment is forgotten in the next moment. It is possible to wash the ingredients and put them in the rice cooker one minute before, and then forget to start the cooking function and walk away the next minute. As a result, when you want to eat at the expected time, you will find that the rice cooker has not been heated at all. There may also be situations such as not putting in ingredients, forgetting to close the lid, or putting in ingredients that have been cooked, which brings a lot of inconvenience to the use of the electric rice cooker.

Utility model content

The technical problem to be solved by the utility model is to provide an electric rice cooker that can automatically remind. It can judge whether the user's operation is reasonable by detecting various parameters of the electric cooker, and can also judge whether the user forgets to start the rice cooker by identifying the user's operating state. Work.

The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an electric rice cooker, comprising a hollow pot body with an open upper end, an inner pot arranged in the pot body, and a pot cover arranged at the opening of the upper end of the pot body and connected with the pot body , the body of the pot is provided with a weighing device for detecting the weight of the ingredients put into the inner container, and the lid of the pot is provided with a detection device for detecting whether the lid and the body of the pot are closed, and the body of the pot is Or the pot cover is provided with a temperature detection device for detecting the temperature of the food material placed in the inner container, a reminder device and a single-chip microcomputer that can send a reminder message, the single-chip microcomputer is provided with a data storage module and a timer, and the pot cover is provided with an operation The panel, the weighing device, the detection device for opening the cover, the temperature detection device and the operation panel are all electrically connected to the single-chip microcomputer, and the single-chip microcomputer is also electrically connected to the reminder device.

The single-chip microcomputer collects the detection information of the weighing device, the cover opening state detection device, the temperature detection device and the timer and performs logical processing, and finally outputs a feedback signal to the reminder device to perform relevant reminder operations. When the rice cooker is in use, it can perform automatic reminder control first, and then judge whether the user puts in ingredients, the state of the lid of the rice cooker, the temperature state of the ingredients, and the user's operation state in order to confirm the situation of the ingredients cooked by the rice cooker, allowing the user to confirm the use of the rice cooker again status, and when the requirements are met, a reminder message can be issued to prompt the user to start.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the weighing device is a load cell, located below the inner container.

The beneficial effect of adopting the above-mentioned further scheme is that a weighing sensor is placed under the inner pot inside the cooker body to detect the weight of the ingredients placed in the inner pot, which is to prevent the rice cooker from being started without putting in the ingredients.

Further, the temperature detection device is a thermistor.

The beneficial effect of adopting the above-mentioned further scheme is that the typical characteristic of the thermistor is sensitive to temperature, and exhibits different resistance values at different temperatures. Because of the thermistor, the structure of the rice cooker can be simpler and the cost is lower.

Further, the detection device for the opening state is an angle switch, a magnetic reed switch, a position proximity sensor or a micro switch.

Further, when the lid-opening state detection device is an angle switch, it detects whether the angle switch is in a conduction state, if so, judges that the pot lid is in an open state, and if not, judges that the pot lid is in a closed state; When the lid state detection device is a magnetic reed switch, a position proximity sensor or a micro switch, it detects whether the magnetic reed switch, the position proximity sensor or the micro switch is in a conduction state. If so, it is judged that the lid is closed. If not, Then it is judged that the lid of the pot is opened.

The working principle of the angle switch is that when the angle switch rotates at a certain angle to trigger its conduction, the Pout signal is at high level, and when the angle switch rotates at a certain angle to trigger its disconnection, the Pout signal is at low level, and the Pout signal is collected The I/O port of the single-chip microcomputer; the specific embodiment is that an angle switch is set in the lid of the electric cooker, and when the lid was in the open state (inclined position), the angle switch trigger was a conduction state; when the lid was in the closed state (horizontal position) position), the angle switch is triggered in the off state, and the opening and closing state of the rice cooker lid can be monitored through the state of the angle switch.

The embodiment of the magnetic reed switch: a magnetic reed switch is set in the rice cooker body or lid, and a magnet is set at the corresponding position of the lid or body. When the lid is closed, the magnetic spring will The switch is in the conduction state. When the lid is in the open state, the magnetic force of the magnet cancels the magnetic reed switch and returns to the disconnected state. The opening and closing state of the rice cooker lid can be monitored by detecting the conduction state of the reed switch through the corresponding circuit.

The specific implementations of the position proximity sensor and the micro switch are similar to the magnetic reed switch, and they all monitor the opening and closing state of the rice cooker lid by detecting the conduction state of the switch.

Further, the reminder information sent by the reminder device is a voice reminder signal, an alarm signal or a status information display.

The beneficial effect of adopting the above-mentioned further solution is that the reminder information can be a language prompt manually broadcast, or an alarm sound such as a buzzer or an alarm, or display information or flash red light on the control panel.

The beneficial effects of the utility model are: the utility model has the advantage of comprehensively analyzing the signal states of the three detection devices to identify the user's actual use scene, identify the user's misoperation status and give a feedback reminder to prevent the user from If you are distracted and do not put ingredients in, forget to close the lid, put in ingredients that have already been cooked, forget to start the product and soak the ingredients in the product for a long time, etc., you can return to let the customer confirm the ingredients cooked by the rice cooker , and a reminder message can also be sent to allow the user to reconfirm the use status of the rice cooker. The scheme design idea of the utility model is ingenious, and the design scheme is simple and reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model electric cooker;

Fig. 2 is the circuit connection schematic diagram of electric cooker of the present utility model;

Fig. 3 is a flowchart of the automatic reminder control of the rice cooker of the present invention.

In the accompanying drawings, the list of parts represented by each label is as follows:

1. Pot body, 2. Inner pot, 3. Cover, 4. Weighing device, 5. Cover opening state detection device, 6. Temperature detection device, 7. Single-chip microcomputer, 8. Operation panel.

Detailed ways

The principles and features of the present utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

As shown in Figure 1, an electric rice cooker comprises a hollow pot body 1 with an open upper end, an inner container 2 arranged in the pot body 1, and a pot cover arranged at the opening of the upper end of the pot body 1 and connected with the pot body 1 3. The pot body 1 is provided with a weighing device 4 for detecting the weight of the ingredients put into the inner pot 2, and the pot cover 3 is provided with an opening cover for detecting whether the pot cover 3 and the pot body 1 are closed A state detection device 5, the pot body 1 or the pot cover 3 are provided with a temperature detection device 6 for detecting the temperature of food materials placed in the inner container 2, a reminder device and a single-chip microcomputer 7 that can send reminder information, and the single-chip microcomputer 7 is provided with A data storage module and a timer, an operation panel 8 is arranged on the lid of the pot. As shown in Figure 2, the weighing device 4, the lid-opening state detection device 5, the temperature detection device 6 and the operation panel 8 are all electrically connected to the single-chip microcomputer 7, and the single-chip microcomputer 7 is also connected to the single-chip microcomputer 7. The reminder device is electrically connected.

The single-chip microcomputer 7 collects the detection information of the weighing device 4, the opening state detection device 5, the temperature detection device 6 and the timer and performs logical processing, and finally outputs a feedback signal to the reminder device to perform relevant reminder operations. When the rice cooker is in use, it can perform automatic reminder control first, and then judge whether the user puts in ingredients, the state of the lid of the rice cooker, the temperature state of the ingredients, and the user's operation state in order to confirm the situation of the ingredients cooked by the rice cooker, allowing the user to confirm the use of the rice cooker again status, and when the requirements are met, a reminder message can be issued to prompt the user to start.

Preferably, the weighing device 4 is a load cell, located below the inner container 2 . A weighing sensor is placed under the inner container 2 inside the cooking pot body 1 to detect the weight of the ingredients placed in the inner container 2, which is to prevent the electric rice cooker from being started without putting in the ingredients.

Preferably, the temperature detection device 5 is a thermistor. A typical feature of a thermistor is that it is sensitive to temperature and exhibits different resistance values at different temperatures. It can detect the temperature of the ingredients placed in the inner tank 2 and transmit the temperature information to the single-chip microcomputer 7 through the circuit.

Preferably, the lid opening state detection device 5 is an angle switch, a magnetic reed switch, a position proximity sensor or a micro switch. The utility model solution is preferably an angle switch.

Preferably, when the lid-opening state detection device 5 is an angle switch, it detects whether the angle switch is in a conduction state, if so, judges that the pot lid 3 is in an open state, and if not, then judges that the pot lid 3 is in a closed state; When described uncapped state detecting device 5 is magnetic reed switch, position proximity sensor or microswitch, detect whether magnetic reed switch, position proximity sensor or microswitch are conduction state, if so, then judge that pot lid 3 is closing Upper state, if not, then judge that pot cover 3 is open state.

The working principle of the angle switch is that when the angle switch rotates at a certain angle to trigger its conduction, the Pout signal is at high level, and when the angle switch rotates at a certain angle to trigger its disconnection, the Pout signal is at low level, and the Pout signal is collected The I/O port of the single-chip microcomputer; the specific embodiment is that an angle switch is set in the lid 3 of the electric cooker, and when the lid 3 of the pot was in an open state (tilted position), the trigger of the angle switch was a conduction state; when the lid 3 was closed state (horizontal position), the angle switch is triggered to be in an off state, and the opening and closing state of the lid 3 of the electric rice cooker can be monitored by the state of the angle switch.

The implementation of the magnetic reed switch: a magnetic reed switch is set in the rice cooker body 1 or the lid 3, and a magnet is set at the corresponding position of the lid 3 or the body 1. When the lid 3 is closed, the magnetic force of the magnet Under the action of the reed switch, the reed switch is in the conduction state. When the lid 3 is in the open state, the magnetic force of the magnet cancels the reed switch and returns to the disconnected state. The rice cooker can be monitored by detecting the conduction state of the reed switch through the corresponding circuit. The opening and closing state of the cover 3.

The specific implementations of the position proximity sensor and the micro switch are similar to the magnetic reed switch, and the opening and closing state of the lid 3 of the electric cooker is monitored by detecting the conduction state of the switch.

Preferably, the reminder information sent by the reminder device is a voice reminder signal, an alarm signal or a status information display. The reminding information can be the language prompt of artificial broadcasting, also can be the alarm sound such as buzzer, alarm, or, display information or flashing red light on the control panel 8.

As shown in Figure 3, the practical electric rice cooker has the function of automatic reminder control, which specifically includes the following steps:

Step S0, start;

Step S1, detect the weight m of the ingredients put into the inner pot 2 of the rice cooker and compare it with the preset minimum cooking weight m ₁ of the rice cooker, if m≥m ₁ , it is judged that the user puts ingredients into the inner pot 2 , execute step S2, if m<m ₁ , then it is judged that no ingredients are put into the inner pot 2, and step S0 is executed again; ; until the inner pot 2 puts ingredients exceeding the minimum cooking weight of the rice cooker, proceed to the subsequent steps;

Step S2, detect whether the real-time state of the lid 3 and the body 1 of the rice cooker is in the lid-closed state; if it is in the lid-closed state, that is, the user has closed the lid 3 of the rice cooker, then perform step S3, if it is in the lid-open state, Indicates that the lid 3 is not closed, then re-execute step S0; until the food material exceeding the minimum cooking weight of the rice cooker is placed in the inner pot 2 and the lid 3 is closed, then proceed to the subsequent steps;

Step S3, detecting the temperature T of the ingredients in the inner pot 2 of the rice cooker and comparing it with the preset temperature preset value T ₁ , if T>T ₁ , it is determined that the ingredients in the inner pot 2 have been cooked The ingredients do not need to be steamed, execute step S5, end the operation, take out the ingredients, if T≤T ₁ , then determine that the ingredients placed in the inner pot 2 are ingredients that need to be cooked, and execute step S4;

Step S4, on the basis of confirming in step S3 that the inner pot 2 of the rice cooker is the food material that needs to be cooked, detect the time t when no user operation signal is collected and compare it with the preset user from closing the lid to operating the product The working delay time t ₁ is compared, if t>t ₁ , a feedback signal is issued and a reminder message is sent to remind the user to start the product to work, if t≤t ₁ , then execute step S5;

Step S5, end.

Detecting the weight m of the ingredients put into the inner pot 2 of the rice cooker can be realized by the weighing device 4, and detecting whether the real-time state of the lid 3 and the body 1 of the rice cooker is in the lid-closed state can be realized by the detection device 5 for detecting the state of the rice cooker. The temperature T of the ingredients in the inner tank 2 can be realized by the temperature detection device 6, the detection of the time t when the user operation signal is not collected can be realized by the timer, and the feedback signal and the sending of the reminder information can be realized by the reminder device; the preset electric cooker is at least The cooking weight m ₁ , the temperature preset value T ₁ , and the user's delay time t ₁ from closing the lid to operating the product can be preset in advance through the data storage module.

Preferably, the minimum cooking weight m ₁ of the electric rice cooker is 150g. The minimum cooking weight of an electric rice cooker can be based on the minimum amount of a cup of rice, which is set at 150g in the scheme of the utility model. Do not set m1 to ₀ , because considering the system error and the aging of the product after long-term use, there may be errors when the weighing device 4 weighs, and some weight is reserved to prevent misjudgment.

Preferably, the temperature preset value T ₁ is 40°C. This temperature is mainly distinguished from the ambient temperature. Considering extreme weather conditions, the maximum ambient temperature preset value of the utility model solution is preferably 40°C. Usually, it is not the ambient temperature but the temperature of the cooked ingredients if it exceeds 40°C.

Preferably, the preset delay time _t1 from closing the lid to operating the product is 30s. A delay time of 30s is reserved to prevent accidents from interrupting the operation for a short time. If there is no operation for more than 30s, it will be judged that the user has forgotten to start the rice cooker, and a reminder message will be sent to remind the user to start it.

The advantage of the solution of the utility model is that the actual use scene of the user can be identified by comprehensively analyzing the signal states of the three detection devices, the misoperation state of the user can be identified and a feedback reminder can be given to prevent the user from not putting in the food due to a momentary distraction , Forgetting to close the lid 3. The ingredients that have been put in have already been cooked, and the ingredients have been soaked in the product for a long time because of forgetting to start the product, etc., you can return to let the customer confirm the ingredients cooked by the rice cooker, or send a reminder message. Let the user reconfirm the use status of the rice cooker. The scheme design idea of the utility model is ingenious, and the design scheme is simple and reliable.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.

Claims (6)

1. an electric cooker, comprise hollow and pot body (1) of upper end open, be arranged on the inner bag (2) in pot body (1) and be arranged on pot body (1) upper end open place and pot lid (3) be connected with body (1) closing lid of stewing, it is characterized in that, be provided with for detecting the weighing device (4) putting into the weight of food materials in inner bag (2) in described pot body (1), the uncapped state checkout gear (5) whether closed with pot body (1) for detecting pot lid (3) is provided with in described pot lid (3), be provided with for detecting the temperature-detecting device (6) placing food materials temperature in inner bag (2) in described pot body (1) or pot lid (3), alarm set and the single-chip microcomputer (7) of prompting message can be sent, described single-chip microcomputer is provided with data memory module and timer in (7), described pot lid (3) is provided with guidance panel (8), described weighing device (4), described uncapped state checkout gear (5), described temperature-detecting device (6) and described guidance panel (8) are all electrically connected with described single-chip microcomputer (7), described single-chip microcomputer (7) is also electrically connected with described alarm set.

2. a kind of electric cooker according to claim 1, it is characterized in that, described weighing device (4) is LOAD CELLS, is positioned at the below of described inner bag.

3. a kind of electric cooker according to claim 1, it is characterized in that, described temperature-detecting device (6) is thermistor.

4. a kind of electric cooker according to any one of claims 1 to 3, is characterized in that, described uncapped state checkout gear (5) is angle switch, magnetic reed switch, position proximity transducer or microswitch.

5. a kind of electric cooker according to claim 4, it is characterized in that, when described uncapped state checkout gear (5) is for angle switch, whether detection angles switch is conducting state, if, then judge that pot lid (3) is as open mode, if not, then judge that pot lid (3) is as the state of closing;

When described uncapped state checkout gear (5) be magnetic reed switch, position proximity transducer or microswitch time, detect whether magnetic reed switch, position proximity transducer or microswitch are conducting state, if, then judge that pot lid (3) is as the state of closing, if not, then judge that pot lid (3) is as open mode.

6. a kind of electric cooker according to any one of claims 1 to 3, is characterized in that, the prompting message that described alarm set sends is voice reminder signal, alarm signal or status information display.