Multi-station switching working circuit applied to air fryer

Abstract

The multi-station switching working circuit applied to the air fryer comprises an input end which is used for receiving commercial power and outputting voltage to a main control unit U1; the sensor terminal CN6-7 is used for being connected with a sensor and sending a trigger signal of the sensor to the main control unit U1 so as to judge whether the sensor terminal CN6-7 is triggered by a partition board or not; the heating system module comprises a triode Q1 and a triode Q2, a base electrode of the triode Q1 is connected with the main control unit U1, an emitting electrode of the triode Q1 is grounded, a collector electrode of the triode Q1 is connected with one end of a coil end of a relay REY1, the other end of the coil end of the relay REY1 receives voltage, one end of a conduction end of the relay REY1 receives voltage of the input end, and the other end of the conduction end of the relay REY1 is connected with a heating pipe; a base electrode of the triode Q2 is connected with the main control unit U1, an emitting electrode of the triode Q2 is grounded, a collector electrode of the triode Q2 is connected with one end of a coil end of the relay REY2, the other end of the coil end of the relay REY2 receives voltage, one end of a conduction end of the relay REY2 receives voltage of the input end, and the other end of the conduction end of the relay REY2 is connected with the other heating pipe.

Description

Technical Field

[0001] The utility model relates to the field of air fryers, in particular to a multi-station switching working circuit applied to air fryers. Background Art

[0002] Currently, the frying barrel of the air fryer has only one function, that is, it can only cook one kind of ingredient, and cannot cook more than two ingredients with different temperature requirements at one time, so the cooking efficiency cannot be improved. Utility Model Content

[0003] In order to solve the above problems, the present technical solution provides a multi-station switching working circuit applied to an air fryer.

[0004] To achieve the above purpose, the technical solution is as follows:

[0005] The multi-station switching working circuit used in air fryers includes:

[0006] The input terminal is used to receive the mains power and output a voltage to the main control unit U1;

[0007] The sensor terminal CN6-7 is used to connect with the sensor and send the trigger signal of the sensor to the main control unit U1 to determine whether it is currently triggered by the partition;

[0008] A heating system module, comprising a transistor Q1 and a transistor Q2, wherein the base of the transistor Q1 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY1, the other end of the coil end of the relay REY1 receives a voltage, one end of the conduction end of the relay REY1 receives the voltage of the input end, and the other end is connected to the heating tube;

[0009] The base of the transistor Q2 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY2, the other end of the coil end of the relay REY2 receives a voltage, one end of the conduction end of the relay REY2 receives the voltage of the input end, and the other end is connected to another heating tube.

[0010] In some embodiments, further comprising:

[0011] A transistor Q3, wherein the base of the transistor Q3 is connected to the main control unit U1, the emitter is grounded, the relay is connected to the driving end of the thyristor T1, one end of the thyristor T1 receives a voltage, and the other end is connected to the terminal CN1, and the terminal CN1 is used to connect to the driver;

[0012] It also includes a transistor Q4, the base of which is connected to the main control unit U1, the emitter is grounded, the relay is connected to the driving end of the thyristor T2, one end of the thyristor T2 receives a voltage, and the other end is connected to the terminal CN2, and the terminal CN2 is used to connect to another driver.

[0013] In some embodiments, the input terminal also outputs a switch signal through the door switch N1-2;

[0014] The switch signal is connected to the base of the transistor Q8 through the resistors R4, R5 and R6 in sequence, the emitter of the transistor Q8 is grounded, the collector receives a voltage, and the collector is connected to the collection end of the main control unit U1.

[0015] In some embodiments, a zero-crossing detection circuit is also included, which includes:

[0016] Transistor Q10, the base of the transistor Q10 is connected to the input end through resistor R12, resistor R11 and resistor R10 in sequence, the emitter of the transistor Q10 is grounded, the collector thereof receives a voltage, and the collector is also connected to the collection end of the main control unit U1.

[0017] The beneficial effects of this application are:

[0018] The present application has more than two heating systems. In addition, there are more than two inner cavities in the frying barrel for placing different ingredients. The frying pan is triggered by the partition to open the corresponding heating systems respectively, so that more than two ingredients can be cooked at different temperatures. In this way, the cooking efficiency is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0020] Figure 1 This is a schematic diagram of the structure of the embodiment of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the embodiment of the utility model Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the heating system structure of the utility model embodiment Figure 1 ;

[0023] Figure 4 This is a schematic diagram of the heating system structure of the utility model embodiment Figure 2 ;

[0024] Figure 5It is a schematic diagram of the structure of the detection device of an embodiment of the utility model;

[0025] Figure 6 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0026] Figure 7 It is a schematic diagram of the circuit structure of an embodiment of the utility model. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0028] Please refer to Figure 1-6 As shown, the air fryer of the present application includes a fryer body, wherein a plurality of heating systems are arranged at the top of the fryer body, a detection device 1 is arranged in the fryer body, and a frying barrel 2 which can be pushed into the frying barrel body, wherein a plurality of partitions 3 are detachably connected in the frying barrel 2, and the partitions 3 are used to separate the frying barrel 2 so that the number of inner cavities corresponding to the number of the heating systems is formed, and the partitions 3 can trigger the detection device 1 when assembled.

[0029] Taking two heating systems as an example, only one partition is needed. When only one kind of food needs to be cooked, the partition is removed so that the frying barrel has only one inner cavity for accommodating the food. When the frying barrel is pushed into the fryer, the detection device cannot be triggered due to the absence of the partition. Therefore, the two heating systems can heat at the same time. After the partition is installed, the frying barrel has two inner cavities. When the frying barrel is pushed in, the partition triggers the detection device. Therefore, the two heating systems correspond to one inner cavity for heating and cooking respectively, and the heating temperature and heating time of the corresponding heating system can be adjusted. In this way, the frying barrel has higher applicability.

[0030] The frying barrel of the present application, which can be used alone or separately for left and right use, comprises a partition assembly, a development trigger rod and a switch. When the partition assembly is put in, the switch trigger rod is lifted to close the development, thereby the frying barrel can be well divided into left and right parts. The double heating system on the top can set different working modes, times and temperatures for the left and right heating systems through the control circuit to realize different menu functions. When the partition is taken out, the capacity of the frying barrel becomes larger, and the heating systems on the left and right sides work at the same time, thereby more objects can be baked and the heating effect is better.

[0031] In this embodiment, the detection device 1 includes:

[0032] A push rod 101, one end of which is provided with a limiting portion 102, the limiting portion 102 is connected to the fryer body so that the push rod 101 can swing through the connection, and the other end is a trigger end;

[0033] The sensor 103 is disposed in the fryer body and can be triggered by a trigger end when the top rod 101 swings upward.

[0034] When the partition is pushed in, the partition forces the push rod to move upward, so the push rod swings upward through the connection of the limit part, thereby triggering the sensor. Conversely, in the absence of the partition, the sensor will not be triggered.

[0035] In this embodiment, the inner wall of the frying barrel 2 is symmetrically provided with a sliding channel 4 for sliding the partition 3 in, and the lower end surface of the frying barrel 2 is provided with a limiting channel 5 for limiting the partition 3. The partition is installed through the sliding channel, and finally the partition is limited and fixed by the limiting channel, which is convenient for installation.

[0036] In this embodiment, the upper opening of the sliding channel 4 is designed to be trumpet-shaped, which plays a role in guiding installation.

[0037] In this embodiment, the partition plate 3 is provided with a protrusion 6 relative to the sliding channel 4, so as to better cooperate with the sliding channel for assembly.

[0038] In this embodiment, the heating system comprises:

[0039] Driver 7;

[0040] A heating wind wheel 701 is connected to the driver 7;

[0041] The electric heating tube 702 is located under the heating wind wheel 701 .

[0042] In this embodiment, the heating system further includes a heat dissipation wind wheel 703 located above the heating wind wheel 701 .

[0043] refer to Figure 7 , applied to the multi-station switching working circuit of the air fryer, including;

[0044] The input terminal is used to receive the mains power and output a voltage to the main control unit U1;

[0045] The sensor terminal CN6-7 is used to connect with the sensor 103 and send the trigger signal of the sensor 103 to the main control unit U1 to determine whether it is currently triggered by the partition 3;

[0046] A heating system module, comprising a transistor Q1 and a transistor Q2, wherein the base of the transistor Q1 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY1, the other end of the coil end of the relay REY1 receives a voltage, one end of the conduction end of the relay REY1 receives the voltage of the input end, and the other end is connected to the heating tube;

[0047] The base of the transistor Q2 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY2, the other end of the coil end of the relay REY2 receives a voltage, one end of the conduction end of the relay REY2 receives the voltage of the input end, and the other end is connected to another heating tube.

[0048] When the detection device is triggered, the resistance of the sensors corresponding to the terminals CN6 and CN7 changes, and the voltage +5V also changes when it passes through the two sensors to reach the main control unit U1. In this way, the main control unit U1 determines the current state, and then sends signals to the two transistors Q1 and Q2 to make the two relays conduct as required. Then the voltage can pass through the relay to heat the corresponding heating tube. In this way, this circuit can be used for different cooking scenes to switch freely.

[0049] In this embodiment, it also includes:

[0050] A transistor Q3, wherein the base of the transistor Q3 is connected to the main control unit U1, the emitter is grounded, the relay is connected to the driving end of the thyristor T1, one end of the thyristor T1 receives a voltage, and the other end is connected to the terminal CN1, and the terminal CN1 is used to connect to the driver 7;

[0051] It also includes a transistor Q4, the base of which is connected to the main control unit U1, the emitter is grounded, the relay is connected to the driving end of the thyristor T2, one end of the thyristor T2 receives a voltage, and the other end is connected to the terminal CN2, and the terminal CN2 is used to connect to another driver 7.

[0052] The main control unit U1 sends a signal to the two transistors Q3 and Q4 to turn them on, and the corresponding thyristors will be turned on, and the received voltage will be turned on to the terminals CN1 and CN2, thereby sending the voltage to the driver for driving. The two drivers are driven separately and corresponding control is performed according to the above scenarios.

[0053] In this embodiment, the input end also outputs a switch signal through the door switch N1-2;

[0054] The switch signal is connected to the base of the transistor Q8 through the resistor R4, the resistor R5 and the resistor R6 in sequence, the emitter of the transistor Q8 is grounded, the collector receives a voltage, and the collector is connected to the collection end of the main control unit U1;

[0055] When the door is tightly closed, the switch N1-2 is closed, so the input end transmits the voltage to the base of the transistor Q8 through the resistor R4, the resistor R5 and the resistor R6 in sequence to make the transistor Q8 turned on, then +5V is grounded through the transistor Q8, so that the voltage collected by the collection end of the main control unit U1 is reduced. In this way, it can be judged that the current door is tightly closed. On the contrary, when the door is not tightly closed, +5V cannot be grounded, but reaches the collection end of the main control unit U1, so the closing status of the door can be identified by the voltage change collected by the collection end.

[0056] In this embodiment, a zero-crossing detection circuit is also included, which includes:

[0057] A transistor Q10, wherein the base of the transistor Q10 is connected to the input end through resistors R12, R11 and R10 in sequence, the emitter of the transistor Q10 is grounded, the collector thereof receives a voltage, and the collector is also connected to the collection end of the main control unit U1;

[0058] When the input voltage is at a non-zero point, transistor Q10 is turned on, and +5V is grounded through the transistor, so the main control unit U1 collects a lower voltage value. When the input voltage is at zero point, transistor Q10 is disconnected, and +5V reaches the main control unit U1 after resistor voltage division. Then the main control unit U1 can determine the zero-crossing time of the voltage based on the collected voltage changes.

[0059] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other principles and basic structures that are the same or similar to those of the present application are within the protection scope of the present application.

Claims

1. A multi-station switching working circuit applied to an air fryer, characterized in that: include; The input terminal is used to receive the mains power and output a voltage to the main control unit U1; The sensor terminal CN6-7 is used to connect to the sensor (103) and send the trigger signal of the sensor (103) to the main control unit U1 to determine whether it is currently triggered by the partition (3); A heating system module, comprising a transistor Q1 and a transistor Q2, wherein the base of the transistor Q1 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY1, the other end of the coil end of the relay REY1 receives a voltage, one end of the conduction end of the relay REY1 receives the voltage of the input end, and the other end is connected to the heating tube; The base of the transistor Q2 is connected to the main control unit U1, the emitter is grounded, the collector is connected to one end of the coil end of the relay REY2, the other end of the coil end of the relay REY2 receives a voltage, one end of the conduction end of the relay REY2 receives the voltage of the input end, and the other end is connected to another heating tube.

2. The multi-station switching working circuit for an air fryer according to claim 1, characterized in that: Also includes; A transistor Q3, wherein the base of the transistor Q3 is connected to the main control unit U1, the emitter is grounded, the relay is connected to the driving end of the thyristor T1, one end of the thyristor T1 receives a voltage, and the other end is connected to the terminal CN1, and the terminal CN1 is used to connect to the driver (7); It also includes a transistor Q4, the base of which is connected to the main control unit U1, the emitter of which is grounded, the relay is connected to the driving end of the thyristor T2, one end of the thyristor T2 receives a voltage, and the other end is connected to the terminal CN2, and the terminal CN2 is used to connect to another driver (7).

3. The multi-station switching working circuit for an air fryer according to claim 1, characterized in that: The input end also outputs a switch signal through the door switch N1-2; The switch signal is connected to the base of the transistor Q8 through the resistors R4, R5 and R6 in sequence, the emitter of the transistor Q8 is grounded, the collector receives a voltage, and the collector is connected to the collection end of the main control unit U1.

4. The multi-station switching working circuit for an air fryer according to claim 3, characterized in that: Also included is a zero-crossing detection circuit, which includes; Transistor Q10, the base of the transistor Q10 is connected to the input end through resistor R12, resistor R11 and resistor R10 in sequence, the emitter of the transistor Q10 is grounded, the collector thereof receives a voltage, and the collector is also connected to the collection end of the main control unit U1.

Images