Steam cabinet control system

Abstract

The utility model provides a steam cabinet control system, which is applied to the technical field of electric appliance control, and comprises a power panel and a control panel, the power panel comprises a function controller, a water level detection module, an ignition switch module and an alarm module, and the water level detection module detects the water level and sends a detection signal to the function controller. When the water level is sufficient, the function controller receives the detection signal and then drives the alarm module to give an alarm, when the water level is sufficient, the function controller receives the detection signal and then drives the ignition switch module to ignite, and ignition starting of the steam cabinet is achieved; the control panel comprises a panel controller and a steam switch module, and the steam switch module controls opening or closing of the steam valve according to an output signal of the panel controller. According to the steam cabinet control system, water level detection, ignition control and abnormal alarm are coordinated in a centralized mode through the function controller, the water level state can be detected before ignition, dry burning and equipment damage are prevented, and sound-light alarm prompt can be given out when the water level is insufficient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the electric appliance control technical field, concretely relates to a steam cabinet control system. BACKGROUND

[0002] At present, steam cabinet has been widely applied in catering, family and industrial fields, and is mainly used for steaming food. However, the existing steam cabinet has many technical problems in the use process, which may cause safety hazards in use.

[0003] The existing steam cabinet usually lacks perfect water level detection function, or lacks linkage design between the water level detection module and the ignition control module. In this case, if the steam cabinet ignition function is started when the water level is insufficient, dry burning phenomenon is easy to occur, which not only damages the equipment, but also may cause fire and other serious safety accidents. UTILITY MODEL CONTENTS

[0004] In view of the above problems in the prior art, the utility model aims to provide a steam cabinet control system, which can detect the water level before ignition, prevent dry burning and equipment damage, and issue sound and light alarm prompts when the water level is insufficient, through centralized coordination of the water level detection, ignition control and abnormal alarm by the function controller.

[0005] A steam cabinet control system, comprising a power board and a control panel, the power board and the control panel being communicatively connected, the power board comprising a function controller, a water level detection module, an ignition switch module and an alarm module, the water level detection module being used for detecting the water level and sending a detection signal to the function controller, the function controller driving the alarm module to alarm after receiving the corresponding detection signal when the water level is insufficient, and the function controller driving the ignition switch module to ignite after receiving the corresponding detection signal when the water level is sufficient, so as to realize the ignition start of the steam cabinet.

[0006] The control panel comprises a panel controller and a steam switch module, the steam switch module being used for opening or closing control of the steam valve of the steam chamber according to the output signal of the panel controller.

[0007] Preferably, the water level detection module comprises a water level detection sensor, a voltage division network, a triode Q1 and an indication unit, the water level detection sensor being provided with a detection end X1 and a detection end X2, and the indication unit comprising a light-emitting diode D1; when the water level is insufficient, no water body is conducted between the detection end X1 and the detection end X2, at this time, the base voltage of the triode Q1 is insufficient to conduct the triode Q1, the triode Q1 is in the cut-off state, the detection signal output to the function controller from the collector of the triode Q1 is high level, and the function controller drives the alarm module to sound alarm after receiving the high level detection signal; at the same time, the light-emitting diode D1 is turned on and lit to perform light prompting, and water shortage prompting is realized through light alarm and sound alarm.

[0008] Preferably, the voltage dividing network comprises resistors R1, R2, R3 connected in series, the other end of the resistor R1 is connected to the power supply voltage one, the other end of the resistor R3 is connected to the base of the transistor Q1, the detection end X1 and the detection end X2 are connected to the two ends of the resistor R2, respectively.

[0009] Preferably, the base of the transistor Q1 is connected to the voltage dividing network, the base of the transistor Q1 is connected to the resistor R4 and the capacitor C1 in parallel, the emitter of the transistor Q1 is grounded, and the collector of the transistor Q1 outputs the detection signal to the function controller.

[0010] Preferably, the emitter of the transistor Q1 is connected to the indicating unit, the indicating unit comprises the capacitor C2, the resistor R5, the resistor R6 and the light emitting diode D1, the resistor R6 is connected to the light emitting diode D1 in series, and the resistor R6 is connected to the resistor R5 and the capacitor C2 in parallel, respectively, the capacitor C2, the resistor R5 and the resistor R6 are connected to the power supply voltage two.

[0011] Preferably, the ignition switch module comprises the transistor Q2 and the ignition relay K1, the ignition signal output by the function controller is connected to the base of the transistor Q2 through the resistor R7, the resistor R8 is connected between the base and the emitter of the transistor Q2, the collector of the transistor Q2 is connected to the ignition relay K1, the ignition relay K1 is used to connect the wire L1 or the wire L2, and the diode D2 is connected to the ignition relay K1 in parallel.

[0012] Preferably, the alarm module comprises the transistor Q3 and the buzzer U1, the driving signal output by the function controller is connected to the base of the transistor Q3 through the resistor R9, the resistor R10 and the capacitor C3 are connected in parallel between the base and the emitter of the transistor Q3, the collector of the transistor Q3 is connected to the buzzer U1, the buzzer U1 is connected to the power supply voltage two, the capacitor C4 and the diode D3 are connected in parallel between the power supply voltage two and the collector of the transistor Q3, the power supply voltage two is also connected to the capacitor C5, and the other end of the capacitor C5 is grounded.

[0013] Preferably, the steam switch module comprises the motor M and the switch circuit, two switch circuits are provided for each motor M, the current direction of the motor M is controlled by the relay control to control the motor M to rotate forward or reverse, so as to control the opening or closing of the steam valve; the switch circuit comprises a switch circuit one and a switch circuit two, the switch circuit one comprises the relay K2 and the transistor Q4, the switch circuit two comprises the relay K3 and the transistor Q5, the relay K2 is connected to the transistor Q4, the transistor Q4 is driven to be conductive by the panel controller, so as to make the relay K2 closed, the relay K3 is connected to the transistor Q5, and the transistor Q5 is driven to be conductive by the panel controller, so as to make the relay K3 closed.

[0014] Preferably, the control panel further includes a timing display module and a button module. The button module includes a power switch button, a timing selection button, and a timing setting button. The power switch button is used to turn on the steamer and trigger the power board to work. The timing setting button is used to set the desired timing time. The timing selection button is used to select the steaming time of the steamer, and each timing selection button corresponds to a uniquely set timing time. The timing display module is used for counting up or down when the steamer is working. The timing display module includes a timing controller and a digital tube, which displays the timing numbers.

[0015] The beneficial effects of this utility model are as follows: This steamer control system, through modular integrated design, relies on the coordination of functional controllers to achieve water level detection, ignition control, and abnormal alarm functions. Water level detection is performed before ignition control, and an audible and visual alarm is triggered when the water level is abnormal, improving the safety of the steamer and preventing the risk of accidents caused by opening it when the water level is insufficient. Through reasonable circuit design, the control system circuit has strong anti-interference capabilities and power supply stability, while also incorporating overcurrent and overvoltage protection, effectively improving circuit safety.

[0016] The interaction between the timing display module and the button module allows users to quickly select the desired steam time or set the steam time themselves according to actual needs, making it convenient and flexible to use. In addition, the steam switch module uses the relay states of two switch circuits to adjust the direction of the current connected to the motor, thereby controlling the steam valve and facilitating the corresponding control of multiple steam chambers. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is the circuit block diagram of this utility model;

[0019] Figure 2 This is the circuit diagram of the water level detection module of this utility model;

[0020] Figure 3 This is the circuit diagram of the ignition switch module of this utility model;

[0021] Figure 4 This is the circuit diagram of the alarm module of this utility model;

[0022] Figure 5 This is the circuit diagram of the steam switch module of this utility model;

[0023] Figure 6This is a circuit diagram of the timing display module of this utility model. Detailed Implementation

[0024] Example 1

[0025] like Figure 1 As shown, a steam cabinet control system includes a power board and a control panel, which are connected in communication. The power board includes a function controller, a water level detection module, an ignition switch module, and an alarm module, and the water level detection module, the ignition switch module, and the alarm module are all connected to the function controller.

[0026] The water level detection module is used to detect the water level and send a detection signal Water-Check to the function controller. When the water level is insufficient, the function controller receives the corresponding detection signal and drives the alarm module to sound an alarm. When the water level is sufficient, the function controller receives the corresponding detection signal and drives the ignition switch module to ignite, thereby starting the steamer.

[0027] like Figure 2 As shown, the water level detection module includes a water level sensor, a voltage divider network, a transistor Q1, and an indicating unit. The water level sensor has a detection terminal X1 and a detection terminal X2, which are used to detect the water level height.

[0028] The voltage divider network includes resistors R1, R2, and R3 connected in series. The other end of resistor R1 is connected to the power supply voltage 1, and the other end of resistor R3 is connected to transistor Q1. Detection terminals X1 and X2 are respectively connected to the two ends of resistor R2. Resistor R2 serves as the equivalent resistance of the water level detection sensor.

[0029] Specifically, the other end of resistor R3 is connected to the base of transistor Q1. The base of transistor Q1 is connected in parallel with resistor R4 and capacitor C1. The emitter of transistor Q1 is grounded, and the collector of transistor Q1 outputs a detection signal Water-Check to the function controller.

[0030] In addition, the emitter of transistor Q1 is connected to the indicator unit, which includes capacitor C2, resistor R5, resistor R6 and light-emitting diode D1. Resistor R6 and light-emitting diode D1 are connected in series and then in parallel with resistor R5 and capacitor C2 respectively. One end of capacitor C2, resistor R5 and resistor R6 are all connected to the power supply voltage two.

[0031] The water level in the steamer is detected by a water level sensor. When the water level is insufficient, there is no water flow between detection terminals X1 and X2. At this time, the base voltage of transistor Q1 is insufficient to turn on transistor Q1, and transistor Q1 is in the cutoff state. The detection signal Water-Check output from the collector of transistor Q1 to the function controller is high. After receiving the high-level detection signal Water-Check, the function controller drives the alarm module to sound an alarm. At the same time, LED D1 is turned on by the power supply voltage and lights up to provide a light reminder. The water shortage reminder is achieved through light and sound alarms.

[0032] When the water level in the steamer is sufficient, the detection terminals X1 and X2 are connected through the water, which reduces the voltage drop across resistor R2, increasing the base voltage of transistor Q1 and turning it on. At this time, the Water-Check detection signal output from the collector of transistor Q1 to the function controller is low. Since the voltage difference across LED D1 is insufficient, LED D1 is not turned on and lit.

[0033] After the water level detection module detects that the water level in the steamer is sufficient, the function controller drives the ignition switch module to perform the ignition operation.

[0034] like Figure 3 As shown, the ignition switch module includes a transistor Q2 and an ignition relay K1. The ignition signal Fire_Up output by the function controller is connected to the base of transistor Q2 through resistor R7. Resistor R8 is connected between the base and emitter of transistor Q2. The collector of transistor Q2 is connected to ignition relay K1. Ignition relay K1 is used to connect to wiring L1 or wiring L2. Diode D2 is connected in parallel with ignition relay K1.

[0035] Among them, resistor R7 is used as a current-limiting resistor to protect transistor Q2, resistor R8 is used as a pull-down resistor to ensure that transistor Q2 maintains a low level when there is no signal at the base, and diode D2 is used as a freewheeling diode to protect transistor Q2 from being broken down by the reverse induced voltage generated by ignition relay K1.

[0036] Under normal conditions, the ignition signal Fi re_Up is low, and resistor R8 pulls down the base voltage of transistor Q2, causing Q2 to be in the off state. At this time, the coil of ignition relay K1 has no current and is in the open state. When the function controller outputs a high-level ignition signal Fi re_Up, it turns on transistor Q2. Current flows through the coil of ignition relay K1, causing its switch contacts to close, thus realizing the ignition operation and turning on the steamer.

[0037] like Figure 4As shown, the alarm module includes a transistor Q3 and a buzzer U1. The drive signal MCU_Buz output by the function controller is connected to the base of transistor Q3 through resistor R9. A resistor R10 and a capacitor C3 are connected in parallel between the base and emitter of transistor Q3. The collector of transistor Q3 is connected to buzzer U1. Buzzer U1 is connected to power supply voltage two. A capacitor C4 and a diode D3 are connected in parallel between power supply voltage two and the collector of transistor Q3. Power supply voltage two is also connected to capacitor C5, and the other end of capacitor C5 is grounded.

[0038] Among them, resistor R9 is a current-limiting resistor used to protect transistor Q3, capacitor C3 is used for filtering to remove high-frequency noise, capacitors C4 and C5 are used to ensure the stability of the power supply voltage, and diode D3 is used for overvoltage protection.

[0039] Under normal circumstances, the drive signal MCU_Buz is low, transistor Q3 is in the off state, and no current flows through buzzer U1, which is in the off state. When the drive signal MCU_Buz output by the function controller is high, the current turns on transistor Q3, triggering buzzer U1 to sound an alarm.

[0040] In addition, the control panel includes a panel controller, a timer display module, a button module, and a steam switch module, all of which are connected to the panel controller.

[0041] The button module includes a power switch, a timer selection button, and a timer setting button. The power switch is used to turn on the steamer and trigger the power board. The timer setting button allows the user to set the desired time. The timer selection button is used to select the steaming time. Each button corresponds to a unique time, and multiple timer selection buttons can be configured to correspond to different steaming times, allowing users to quickly select the appropriate steaming time based on the food. For example, if a button corresponds to a 7-minute timer, pressing that button will cause the steamer to operate for 7 minutes and then stop, ensuring a total steaming time of 7 minutes.

[0042] The steam switch module is used to open or close the steam valve in the corresponding steam chamber based on the output signal from the panel controller. For example... Figure 5 As shown, the steam switch module includes a motor M and a switch circuit. Each motor M is equipped with two switch circuits. The two switch circuits control the direction of the current connected to the motor M through a relay, thereby controlling the motor M to rotate forward or backward.

[0043] Specifically, the switching circuit includes switch circuit one and switch circuit two. Switch circuit one includes relay K2, resistors R10, R11, and R12, transistor Q4, diode D4, and diode D5. Switch circuit two includes relay K3, resistors R13, R14, and R15, transistor Q5, diode D6, and diode D7.

[0044] In this system, relay K2 is connected to transistor Q4, which is turned on by the panel controller, thus closing relay K2. Similarly, relay K3 is connected to transistor Q5, which is also turned on by the panel controller, closing relay K3. The switching states of relays K2 and K3 are adjusted by the output signal of the panel controller, thereby adjusting the direction of the current flowing through the motor M, thus controlling the rotation direction of the motor M and ultimately opening or closing the steam valve.

[0045] Taking switch circuit one as an example, such as Figure 5 As shown, the base of transistor Q4 is connected to resistor R11, and the other end of resistor R11 is connected to the panel controller to receive the output signal Control-relay2 from the panel controller. The collector of transistor Q4 receives the output signal relay-conductor1 from the panel controller. Resistor R12 is connected between the base and emitter of transistor Q4. The output signal from the panel controller controls the conduction of transistor Q4, thereby controlling the switching state of relay K2.

[0046] Relay K2 has diodes D4 and D5 connected in parallel. Diode D4 is a light-emitting diode. Diode D4 is connected in series with resistor R10. The voltage is divided by resistor R10 to achieve current protection, preventing the diode D4 from being damaged due to excessive current. Diode D4 is used for the switch indication of relay K2.

[0047] The timing display module is used for counting up or down the operation of the steamer, such as... Figure 6 As shown, the timing display module includes a timing controller and a digital tube, which displays the timing numbers.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An autoclave control system, characterized by, The utility model provides an improved steam cabinet, including power panel and control panel, the communication connection between power panel and control panel, power panel includes function controller, water level detection module, ignition switch module and alarm module, water level detection module is used for detecting water level and sends detection signal to function controller, when water level is insufficient, function controller receives corresponding detection signal and drives alarm module to alarm when water level is sufficient, function controller receives corresponding detection signal and drives ignition switch module to ignite and realizes the ignition start of steam cabinet. The control panel includes a panel controller and a steam switch module, which is used to open or close the steam valve of the steam chamber according to the output signal of the panel controller.

2. The cabinet control system of claim 1, wherein, The water level detection module includes a water level detection sensor, a voltage division network, a transistor Q1, and an indication unit. The water level detection sensor is provided with a detection end X1 and a detection end X2. The indication unit includes a light-emitting diode D1. When the water level is insufficient, there is no water body between the detection end X1 and the detection end X2, and at this time, the base voltage of the transistor Q1 is insufficient to turn on the transistor Q1, and the transistor Q1 is in a cut-off state. The detection signal output from the collector of the transistor Q1 to the function controller is a high level, and the function controller drives the alarm module to sound an alarm after receiving the high-level detection signal. At the same time, the light-emitting diode D1 is turned on and lit, providing a light reminder. Through light and sound alarms, a water shortage reminder is achieved.

3. The cabinet control system of claim 2, wherein, The voltage division network includes resistors R1, R2, and R3 connected in series. The other end of the resistor R1 is connected to a power supply voltage one, and the other end of the resistor R3 is connected to the transistor Q1. The detection end X1 and the detection end X2 are connected to the two ends of the resistor R2, respectively.

4. The cabinet control system of claim 2, wherein, The base of the transistor Q1 is connected to the voltage division network. The base of the transistor Q1 is connected to resistors R4 and capacitor C1 in parallel. The emitter of the transistor Q1 is grounded. The collector of the transistor Q1 outputs a detection signal to the function controller.

5. The cabinet control system of claim 2, wherein, The emitter of the transistor Q1 is connected to the indication unit. The indication unit includes a capacitor C2, a resistor R5, a resistor R6, and a light-emitting diode D1. The resistor R6 is connected in series with the light-emitting diode D1, and then connected in parallel with the resistor R5 and the capacitor C2, respectively. The capacitor C2, the resistor R5, and the resistor R6 are all connected to a power supply voltage two.

6. The cabinet control system of claim 1, wherein, The ignition switch module includes a transistor Q2 and an ignition relay K1. The ignition signal output by the function controller is connected to the base of the transistor Q2 through a resistor R7. The base and the emitter of the transistor Q2 are connected to a resistor R8. The collector of the transistor Q2 is connected to the ignition relay K1. The ignition relay K1 is used to connect a wire L1 or a wire L2. A diode D2 is connected in parallel to the ignition relay K1.

7. The cabinet control system of claim 1, wherein, The alarm module comprises a triode Q3 and a buzzer U1, a driving signal output by the function controller is connected to the base of the triode Q3 through a resistor R9, a resistor R10 and a capacitor C3 are connected in parallel between the base and the emitter of the triode Q3, the collector of the triode Q3 is connected to the buzzer U1, the buzzer U1 is connected to a power supply voltage II, a capacitor C4 and a diode D3 are connected in parallel between the power supply voltage II and the collector of the triode Q3, the power supply voltage II is further connected to a capacitor C5, and the other end of the capacitor C5 is grounded.

8. The cabinet control system of claim 1, wherein, The steam switch module comprises motors M and switch circuits, wherein two switch circuits are arranged for each motor M, the two switch circuits control the current direction of the motor M through a relay to control the motor M to rotate forward or reversely, so as to realize the opening or closing of the steam valve. The switch circuit comprises a switch circuit I and a switch circuit II, the switch circuit I comprises a relay K2 and a triode Q4, the switch circuit II comprises a relay K3 and a triode Q5, the relay K2 is connected to the triode Q4, the triode Q4 is driven to be conductive by the panel controller, so that the relay K2 is closed, the relay K3 is connected to the triode Q5, and the triode Q5 is driven to be conductive by the panel controller, so that the relay K3 is closed.

9. The cabinet control system of claim 1, wherein, The control panel further comprises a timing display module and a key module, the key module comprises a switch key, a timing selection key and a timing setting key, the switch key is used to open the steam cabinet and trigger the power board to work, the timing setting key is used to set the required timing time, and the timing selection key is used to select the steam time of the steam cabinet, and each timing selection key corresponds to a uniquely set timing time. The timing display module is used for normal timing or countdown timing of the steam cabinet, and the timing display module comprises a timing controller and a digital tube, and the timing number is displayed through the digital tube.

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