Oven handle detection device

Abstract

The utility model relates to the technical field of temperature detection, and discloses an oven handle detection device, the oven handle detection device comprises an MCU, the MCU is in signal connection with a power supply module, a toppling switch module and a temperature detection module, the toppling switch module is used for detecting the working state of a toppling switch in an oven handle, and the temperature detection module is used for detecting the temperature of the toppling switch. The temperature detection module is used for detecting the temperature of the oven handle. According to the oven handle, the working state of the dumping switch in the oven handle is detected through the dumping switch module, and the temperature of the oven handle is detected through the temperature detection module, so that the temperature of the oven handle is conveniently detected, a user can be reminded, and safe use of the oven handle by the user is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of temperature detection technology, and in particular to a detection device for oven handles. Background Technology

[0002] In existing technology, oven lid opening detection uses a microswitch. However, this method can only detect the oven's on / off signal and cannot measure the temperature of the oven handle. If the oven handle gets too hot, it can easily burn the user.

[0003] Therefore, how to provide a device for detecting the temperature of an oven handle has become an urgent technical problem to be solved. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an oven handle detection device for detecting the temperature of the oven handle.

[0005] Therefore, this utility model discloses an oven handle detection device, which is installed inside the oven handle. The oven handle detection device includes an MCU, and the MCU is signal-connected to a power module, a tilt switch module, and a temperature detection module. The tilt switch module is used to detect the working state of the tilt switch inside the oven handle, and the temperature detection module is used to detect the temperature of the oven handle.

[0006] The MCU is chip U1. The temperature detection module includes a first temperature detection circuit and a second temperature detection circuit. The first temperature detection circuit includes a thermistor NTC1. One end of the thermistor NTC1 is grounded, and the other end of the thermistor NTC1 is connected to resistor R20 and resistor R16 respectively. Resistor R20 is connected to pin 4 of chip U1, and resistor R16 is connected to the power module.

[0007] The second temperature detection circuit includes a thermistor NTC2. One end of the thermistor NTC2 is grounded, and the other end of the thermistor NTC2 is connected to resistors R21 and R17 respectively. Resistor R21 is connected to pin 5 of the chip U1.

[0008] The present invention is further configured such that the tilt switch module includes a tilt switch, and pin 1 of the tilt switch is connected to pin 13 of the chip U1, capacitor C18 and resistor R16 respectively, and capacitor C18 and resistor R16 are both grounded;

[0009] Pin 2 of the tilt switch is connected to one end of capacitor C17, one end of resistor R23, and the power module, respectively. Pin 3 of the tilt switch is connected to the other end of resistor R23, and resistor R23 is connected to the power module.

[0010] The present invention is further configured to include an alarm module, which includes a buzzer BUZ1 and a transistor TR4. The buzzer BUZ1 is connected in parallel with a resistor R18. The first terminal of the transistor TR4 is connected to both the buzzer BUZ1 and the resistor R18. The second terminal of the transistor TR4 is grounded and connected to one end of a resistor R27. The third terminal of the transistor TR4 is connected to the other end of the resistor R27 and one end of a resistor R24. The other end of the resistor R24 ​​is connected to pin 16 of the chip U1.

[0011] The present invention is further configured to include a display module connected to the MCU signal, the display module being used to display the working status of the tilt switch and the temperature of the oven handle.

[0012] The present invention is further configured such that the display module displays information via LEDs or a display screen.

[0013] The present invention is further configured to include a first DC-DC circuit, which is used to step down the power input voltage, and the first DC-DC circuit is connected to pin 12 of the chip U1.

[0014] The present invention is further configured to include a second DC-DC circuit, which is used to step down the power input voltage, and the output voltage of the second DC-DC circuit is 3.3V.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This utility model provides an oven handle detection device, specifically including an MCU. The MCU is connected to a power module, a tilt switch module, and a temperature detection module. The tilt switch module detects the working status of the tilt switch inside the oven handle, and the temperature detection module detects the temperature of the oven handle, thus facilitating temperature monitoring and alerting the user to ensure safe use of the oven handle. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a structural block diagram of the first oven handle detection device disclosed in this embodiment;

[0019] Figure 2 This is a structural block diagram of the second type of oven handle detection device disclosed in this embodiment;

[0020] Figure 3 This is a schematic diagram illustrating the working principle of the second type of oven handle detection device disclosed in this embodiment;

[0021] Figure 4 This is a structural block diagram of the third oven handle detection device disclosed in this embodiment;

[0022] Figure 5 This is a schematic diagram of the working principle of the third oven handle detection device disclosed in this embodiment;

[0023] Figure 6 This is a circuit diagram of chip U1 of an oven handle detection device disclosed in this embodiment;

[0024] Figure 7 This is a circuit diagram of the temperature detection module of an oven handle detection device disclosed in this embodiment;

[0025] Figure 8 This is a circuit diagram of the tilt switch module of an oven handle detection device disclosed in this embodiment;

[0026] Figure 9 This is a circuit diagram of the alarm module of an oven handle detection device disclosed in this embodiment;

[0027] Figure 10 This is a circuit diagram of the power module of an oven handle detection device disclosed in this embodiment;

[0028] Figure 11 This is a schematic diagram of the LED display circuit of an oven handle detection device disclosed in this embodiment;

[0029] Figure 12 This is a schematic diagram of the first DC-DC circuit of an oven handle detection device disclosed in this embodiment;

[0030] Figure 13This is a schematic diagram of the second DC-DC circuit of an oven handle detection device disclosed in this embodiment. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0035] This utility model discloses a baking oven handle detection device, such as... Figure 1-13 As shown, the oven handle detection device is installed inside the oven handle. The oven handle detection device includes an MCU. The MCU is connected to a power module, a tilt switch module, and a temperature detection module. The tilt switch module is used to detect the working status of the tilt switch inside the oven handle, and the temperature detection module is used to detect the temperature of the oven handle.

[0036] The MCU is chip U1. The temperature detection module includes a first temperature detection circuit and a second temperature detection circuit. The first temperature detection circuit includes a thermistor NTC1. One end of the thermistor NTC1 is grounded, and the other end of the thermistor NTC1 is connected to resistor R20 and resistor R16 respectively. Resistor R20 is connected to pin 4 of chip U1, and resistor R16 is connected to the power module.

[0037] The second temperature detection circuit includes a thermistor NTC2. One end of the thermistor NTC2 is grounded, and the other end of the thermistor NTC2 is connected to resistors R21 and R17 respectively. Resistor R21 is connected to pin 5 of chip U1.

[0038] It should be noted that the oven handle detection device provided by this utility model specifically includes an MCU, which is connected to a power module, a tilt switch module, and a temperature detection module. The tilt switch module detects the working status of the tilt switch inside the oven handle, and the temperature detection module detects the temperature of the oven handle, thus facilitating temperature monitoring and alerting the user to ensure safe use of the oven handle.

[0039] like Figure 8 As shown, the tilt switch module includes a tilt switch. Pin 1 of the tilt switch is connected to pin 13 of chip U1, capacitor C18 and resistor R16 respectively. Both capacitor C18 and resistor R16 are grounded.

[0040] Pin 2 of the tilt switch is connected to one end of capacitor C17, one end of resistor R23, and the power module, respectively. Pin 3 of the tilt switch is connected to the other end of resistor R23, and resistor R23 is connected to the power module.

[0041] like Figure 9 As shown, it also includes an alarm module, which includes a buzzer BUZ1 and a transistor TR4. The buzzer BUZ1 is connected in parallel with a resistor R18. The first terminal of the transistor TR4 is connected to both the buzzer BUZ1 and the resistor R18. The second terminal of the transistor TR4 is grounded and connected to one end of a resistor R27. The third terminal of the transistor TR4 is connected to the other end of the resistor R27 and one end of a resistor R24. The other end of the resistor R24 ​​is connected to pin 16 of the chip U1.

[0042] like Figure 1 and Figure 11 As shown, it also includes a display module connected to the MCU signal. The display module is used to display the working status of the tilt switch and the temperature of the oven handle.

[0043] like Figure 1 and Figure 11 As shown, the display module displays information via LEDs or a screen.

[0044] like Figure 12 As shown, it also includes a first DC-DC circuit, which is used to step down the power input voltage. The first DC-DC circuit is connected to pin 12 of chip U1.

[0045] like Figure 13 As shown, it also includes a second DC-DC circuit, which is used to step down the power input voltage. The output voltage of the second DC-DC circuit is 3.3V.

[0046] In the specific implementation process, such as Figure 2 and Figure 3 As shown, in the case of an oven with a main controller: the handle detection device stores the tilt switch signal and handle temperature in a register. The oven main control board can query the register contents of the detection device via serial port, Bluetooth, or RF, that is, query the tilt switch signal and handle temperature, and display them on the controller.

[0047] In the specific implementation process, such as Figure 4 and Figure 5 As shown, the handle detection device can work independently: When working independently, the handle detection device can display the tilt switch status and handle temperature using LEDs or a display screen to remind the user; it can also remind the user via Bluetooth through a mobile APP.

[0048] It should also be noted that this invention uses a tilt switch, which allows the user to determine the opening angle of the lid. Different opening angles will result in errors in the displayed temperature. It is safe to use and features built-in temperature detection and display reminder functions.

[0049] Working Principle: This utility model provides an oven handle detection device, specifically including an MCU. The MCU is connected to a power module, a tilt switch module, and a temperature detection module. The tilt switch module detects the working status of the tilt switch inside the oven handle, and the temperature detection module detects the temperature of the oven handle. This facilitates temperature monitoring of the oven handle and can alert the user, ensuring safe use of the oven handle.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An oven handle detection device installed in an oven handle, characterized by, The oven handle detection device comprises an MCU, the MCU is signal connected with a power module, a dump switch module and a temperature detection module, the dump switch module is used for detecting the working state of the dump switch in the oven handle, and the temperature detection module is used for detecting the temperature of the oven handle. The MCU is a chip U1, the temperature detection module comprises a first temperature detection circuit and a second temperature detection circuit, the first temperature detection circuit comprises a thermistor NTC1, one end of the thermistor NTC1 is grounded, the other end of the thermistor NTC1 is connected with a resistor R20 and a resistor R16 respectively, the resistor R20 is connected with the 4th pin of the chip U1, and the resistor R16 is connected with the power module. The second temperature detection circuit comprises a thermistor NTC2, one end of the thermistor NTC2 is grounded, and the other end of the thermistor NTC2 is connected with a resistor R21 and a resistor R17 respectively.

2. The oven handle detection apparatus of claim 1, wherein The dump switch module comprises a dump switch, the 1st pin of the dump switch is connected with the 13th pin of the chip U1, a capacitor C18 and a resistor R16 respectively, and the capacitor C18 and the resistor R16 are grounded. The 2nd pin of the dump switch is connected with one end of a capacitor C17, one end of a resistor R23 and the power module respectively, the 3rd pin of the dump switch is connected with the other end of the resistor R23, and the resistor R23 is connected with the power module.

3. The oven handle detection apparatus of claim 1, wherein The alarm module comprises a buzzer BUZ1 and a triode TR4, the buzzer BUZ1 is connected with a resistor R18 in parallel, the first pole of the triode TR4 is connected with the buzzer BUZ1 and the resistor R18 respectively, the second pole of the triode TR4 is grounded and connected with one end of a resistor R27, the third pole of the triode TR4 is connected with the other end of the resistor R27 and one end of a resistor R24 respectively, and the other end of the resistor R24 is connected with the 16th pin of the chip U1.

4. The oven handle detection apparatus of claim 1, wherein The display module is signal connected with the MCU, and the display module is used for displaying the working state of the dump switch and the temperature of the oven handle.

5. The oven handle detection apparatus of claim 4, wherein, The display module displays through an LED or a display screen.

6. The oven handle detection apparatus of any of claims 1-5, wherein, The first DC-DC circuit is used for reducing the input voltage of the power supply, and the first DC-DC circuit is connected with the 12th pin of the chip U1.

7. The oven handle detection apparatus of any of claims 1-5, wherein, The second DC-DC circuit is used for reducing the input voltage of the power supply, and the output voltage of the second DC-DC circuit is 3.3V.

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