Oil stain detection circuit for oil collection box on integrated cooker
Through capacitive sensing technology, the oil stain position in the oil collecting box is automatically identified in the integrated stove and reminded the user, which solves the problem that users need to bend down to judge the difficulty of cleaning the oil collecting box, realizes automatic identification and reminding of oil stains, and improves the accuracy of judgment and initiative, with simple structure and low cost.
Patent Information
- Application Number
- CN202323526467.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-22
AI Technical Summary
In the integrated stove, the user needs to bend down to determine whether the oil collector box needs to be cleaned, which leads to difficulty in judgment.
Capacitive sensing technology is adopted to automatically identify the oil stain position in the oil collection box through the induction module, and transmit the induction value to the back-end electronic control system through the I2C communication interface to realize automatic identification and reminding of oil stains.
It realizes automatic identification and reminder of oil stains in the oil collection box, reduces the difficulty of user judgment, improves the initiative and accuracy of judgment, and has low structural requirements, is easy to install, and is low in cost.
Smart Images
Figure CN222187050U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an oil pollution detection circuit for an oil collecting box on an integrated stove, belonging to the technical field of integrated stoves. Background Art
[0002] In the integrated stove product category, the oil collection box is often located at the bottom of the entire machine structure. Compared with traditional range hood products (placed on the top for easy observation), users need to bend down and pull out the oil collection box to determine whether it needs to be cleaned, so it is not easy to judge. Utility Model Content
[0003] In order to solve the above technical problems existing in the prior art, the utility model provides a rotor that reduces the noise of a DC variable frequency brushless motor. In order to solve this industry pain point, the utility model adopts capacitive sensing technology to automatically identify the location of oil stains in the oil collection box and remind the user. Compared with other weighing, infrared technology and other solutions, it has low structural requirements and is easy to install; and compared with similar solutions, the circuit can transmit more detailed oil stain sensing values to the back-end main control system for judgment, thereby improving the initiative and accuracy of its judgment.
[0004] The technical solution adopted by the utility model is:
[0005] An oil detection circuit for an oil collecting box on an integrated stove, characterized in that it comprises a sensing module and a rear-end electric control system, wherein the rear-end electric control system is connected to the sensing module by signal; the sensing module comprises a sensing disk SENSOR_PAD1, a capacitive sensing chip U1, an interface circuit J1 and a status indicator circuit LED1, and the sensing disk SENSOR_PAD1 is fixedly arranged at a position on the outer wall of the oil collecting box where an oil reminder is required;
[0006] The induction disk SENSOR_PAD1 is connected to the SENSOR1 interface of the capacitive sensing chip U1 through a resistor R4; one end of the status indicator circuit LED1 is connected to VCC, and the other end is connected to the IO interface of the capacitive sensing chip U1 through a resistor R3; the interface circuit J1 includes a power line VCC, a ground line GND, a data communication line SDA and a data communication line SCL, and the data communication line SDA and the data communication line SCL are connected to the I 2C interface; the power line VCC of the interface circuit J1 is connected to VCC through a diode D1; the ground line GND of the interface circuit J1 is grounded; the data communication line SDA of the interface circuit J1 is connected to the SDA interface of the capacitive sensing chip U1 through a resistor R1, and the data communication line SCL of the interface circuit J1 is connected to the SCL interface of the capacitive sensing chip U1 through a resistor R2; the VDD interface of the capacitive sensing chip U1 is connected to the VSS interface of the capacitive sensing chip U1 through a capacitor C1, one end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC end.
[0007] Furthermore, the rear-end electric control system includes a key display panel and a power supply panel, the key display panel and the power supply panel communicate with each other, and the power supply panel communicates with each other through I 2 The C interface is connected to the sensing module and provides power for the sensing module.
[0008] Compared with the prior art, the beneficial effects of the utility model are:
[0009] 1. The back-end electronic control system of the utility model mainly handles the communication with the sensing module, the real-time judgment of the capacitance value and executes the corresponding reminder function.
[0010] 2. The utility model easily realizes the liquid level capacitance sensing and LED status indication in the oil collecting box and transmits the data to the back-end electronic control system for analysis and judgment, so that it can generate the reminder function of oil fullness in time and notify the user to clean it.
[0011] 3. The utility model can automatically identify the oil level in the oil collecting box without manual judgment.
[0012] 4. Compared with other weighing and infrared tube technology solutions, the utility model has low structural requirements. It only needs to fix the induction plate to the induction position of the outer wall of the oil collecting box. It is easy to install, simple in circuit and low in cost.
[0013] 5. Compared with similar solutions, this utility model adopts I 2 C communication interface mode can transmit the real-time sensing capacitance value to the back-end electronic control system for judgment, which is more accurate and can also judge whether it is water or oil and other stains based on the difference in capacitance value.
[0014] 6. The status indicator light of the utility model not only indicates whether the circuit itself is working normally or abnormally, but also has an alarm reminder function to indicate that the oil box is full of oil by periodically flashing the indicator light. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a circuit schematic diagram of the induction module of the utility model.
[0016] Figure 2 It is a framework diagram of the utility model. DETAILED DESCRIPTION
[0017] The specific implementation of the embodiment of the utility model is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model.
[0018] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with exemplary embodiments.
[0020] refer to Figure 1 and Figure 2 The utility model is an integrated stove oil collecting box oil detection circuit, characterized in that it includes a sensing module and a rear-end electric control system, the rear-end electric control system is connected to the sensing module signal; the sensing module includes a sensing plate SENSOR_PAD1, a capacitive sensing chip U1, an interface circuit J1 and a status indicator circuit LED1, the sensing plate SENSOR_PAD1 is fixedly arranged at the outer wall of the oil collecting box where the oil pollution reminder is required;
[0021] The induction disk SENSOR_PAD1 is connected to the SENSOR1 interface of the capacitive sensing chip U1 through a resistor R4; one end of the status indicator circuit LED1 is connected to VCC, and the other end is connected to the IO interface of the capacitive sensing chip U1 through a resistor R3; the interface circuit J1 includes a power line VCC, a ground line GND, a data communication line SDA and a data communication line SCL, and the data communication line SDA and the data communication line SCL are connected to the I 2 C interface; the power line VCC of the interface circuit J1 is connected to VCC through a diode D1; the ground line GND of the interface circuit J1 is grounded; the data communication line SDA of the interface circuit J1 is connected to the SDA interface of the capacitive sensing chip U1 through a resistor R1, and the data communication line SCL of the interface circuit J1 is connected to the SCL interface of the capacitive sensing chip U1 through a resistor R2; the VDD interface of the capacitive sensing chip U1 is connected to the VSS interface of the capacitive sensing chip U1 through a capacitor C1, one end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC end.
[0022] In one embodiment, the back-end electric control system includes a key display panel and a power supply panel, wherein the key display panel and the power supply panel communicate with each other, and the power supply panel communicates with each other through I 2 The C interface is connected to the sensing module and provides power for the sensing module.
[0023] The entire induction triggering process of the utility model is as follows:
[0024] The capacitive sensing chip U1 obtains the sensing capacitance in real time through the sensing pad SENSOR_PAD1, obtains a relatively stable capacitance equivalent value through the internal algorithm, and transmits the capacitance equivalent value through I 2 The back-end electronic control system will recognize the capacitance equivalent value and make a real-time judgment. When the capacitance equivalent value has reached the set reminder target value range (generally, the equivalent value is very small and close to zero before the liquid level reaches the sensor disk SENSOR_PAD1; it starts to increase when it reaches the sensor disk SENSOR_PAD1), the back-end electronic control system will use its internal buzzer and digital tube to remind the user through prompt sound and fault code display. At the same time, during the reminder period, the back-end electronic control system will use I 2 The C interface sends a reminder mark to the capacitive sensing chip U1. After receiving the reminder code, the capacitive sensing chip U1 flashes the LED status light so that the user can also know which part of the integrated stove needs to be processed.
[0025] The induction module solution in the utility model can be one induction disc, and can also be expanded to three induction discs, representing low, medium and high triggers of oil pollution respectively, so that it can be more refined to meet the needs of different users.
[0026] In addition to reminding that the oil box is full, the LED status light in the utility model can also remind faults such as communication failure between the sensing module and the back-end electronic control system.
[0027] D1 in the induction module circuit of the utility model plays a short-circuit protection role against reverse insertion.
[0028] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. An oil detection circuit for an oil collecting box on an integrated stove, characterized in that: It includes a sensing module and a rear-end electric control system, and the rear-end electric control system is connected to the sensing module by signal; the sensing module includes a sensing disk SENSOR_PAD1, a capacitive sensing chip U1, an interface circuit J1 and a status indicator circuit LED1, and the sensing disk SENSOR_PAD1 is fixedly arranged at the outer wall of the oil collecting box where the oil pollution reminder is required; The induction disk SENSOR_PAD1 is connected to the SENSOR1 interface of the capacitive sensing chip U1 through a resistor R4; one end of the status indicator circuit LED1 is connected to VCC, and the other end is connected to the IO interface of the capacitive sensing chip U1 through a resistor R3; the interface circuit J1 includes a power line VCC, a ground line GND, a data communication line SDA and a data communication line SCL, and the data communication line SDA and the data communication line SCL are connected to the I 2 C interface; the power line VCC of the interface circuit J1 is connected to VCC through a diode D1; the ground line GND of the interface circuit J1 is grounded; the data communication line SDA of the interface circuit J1 is connected to the SDA interface of the capacitive sensing chip U1 through a resistor R1, and the data communication line SCL of the interface circuit J1 is connected to the SCL interface of the capacitive sensing chip U1 through a resistor R2; the VDD interface of the capacitive sensing chip U1 is connected to the VSS interface of the capacitive sensing chip U1 through a capacitor C1, one end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC end.
2. The oil detection circuit for the oil collecting box on the integrated stove as claimed in claim 1, characterized in that: The back-end electric control system includes a key display panel and a power supply panel, wherein the key display panel and the power supply panel communicate with each other. 2 The C interface is connected to the sensing module and provides power for the sensing module.