CN215838457U - Control circuit for steaming cabinet and PCB (printed circuit board) thereof - Google Patents
Control circuit for steaming cabinet and PCB (printed circuit board) thereof Download PDFInfo
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- CN215838457U CN215838457U CN202121121694.6U CN202121121694U CN215838457U CN 215838457 U CN215838457 U CN 215838457U CN 202121121694 U CN202121121694 U CN 202121121694U CN 215838457 U CN215838457 U CN 215838457U
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Abstract
The utility model discloses a control circuit for a steam cabinet and a PCB (printed circuit board) thereof, which comprise a main control unit, a water level detection unit, an alarm unit and an output driving unit, wherein the water level detection unit and the output driving unit are respectively and electrically connected with the main control unit; the water level detection unit is used for detecting the water storage amount in the steaming cabinet, the alarm unit is used for sending out warning voice, and the output driving unit is used for controlling the using states of the alarm unit and the steaming cabinet; the water level detection unit automatically detects the water level inside the steam cabinet, if the water level is smaller than a preset lower limit water level, the water level detection unit sends a feedback signal to the main control unit, the main control unit sends a control signal to the output driving unit according to the feedback signal, the output driving unit drives the alarm unit to start according to the control signal, and the alarm unit sends out a warning voice to prompt a user that the water storage of the steam cabinet is insufficient, so that serious safety problems are avoided.
Description
Technical Field
The utility model relates to the technical field of kitchen ware, in particular to a control circuit for a steam cabinet and a PCB (printed circuit board) thereof.
Background
The steam cabinet utilizes the electric energy, the gas generates heat, cook the kitchen equipment who eats the material, often the multi-purpose hotel, school, the mill etc. possesses large-scale dining room, the steam cabinet is at the during operation, mainly rely on to heat the gasification to water, it cooks to eat the material to form high-temperature steam, current steam cabinet need add water in advance before cooking for use, and in the use, because water can constantly evaporate, if the user of service can not in time discover the water yield not enough, the problem that the water burns out appears after the live time has been of a specified duration easily, can lead to the incident when serious.
It is seen that improvements and enhancements to the prior art are needed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a control circuit for a steam cabinet, which can autonomously detect the water storage amount of the steam cabinet and remind the user to add water to prevent the water in the steam cabinet from being dried.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a control circuit for a steam cabinet comprises a main control unit, a water level detection unit, an alarm unit and an output driving unit, wherein the water level detection unit and the output driving unit are respectively and electrically connected with the main control unit, and the alarm unit is connected with the output driving unit; the water level detection unit is used for detecting the water storage amount in the steam cabinet, the alarm unit is used for sending out warning voice, and the output driving unit is used for controlling the alarm unit and the use state of the steam cabinet.
In the control circuit for the steam cabinet, the control circuit for the steam cabinet further comprises a temperature detection unit, and the temperature detection unit is electrically connected with the main control unit; the temperature detection unit is used for detecting the working temperature of the steaming cabinet.
The control circuit for the steam cabinet further comprises a timing unit, and the timing unit is electrically connected with the main control unit.
In the control circuit for the steam cabinet, the main control unit comprises a first control chip U1, a pin 1 of the first control chip U1 is connected with the water level detection unit, a pin 19 of the first control chip U1 is connected with the temperature detection unit, a pin 11, a pin 12 and a pin 18 of the first control chip U1 are respectively connected with the output driving unit, and a pin 5, a pin 6 and a pin 7 of the first control chip U1 are respectively connected with the timing unit.
In the control circuit for the steam cabinet, the output driving unit comprises a second control chip U2, a pin 2 of the second control chip U2 is connected with a pin 18 of the first control chip U1, a pin 6 of the second control chip U2 is connected with a pin 12 of the first control chip U1, a pin 7 of the second control chip U2 is connected with a pin 11 of the first control chip U1, and a pin 15 of the second control chip U2 is connected with the alarm unit.
In the control circuit for the steam cabinet, the timing unit includes a third control chip U3, a pin 5 of the third control chip U3 and a pin 9 of the first control chip U1, a pin 6 of the third control chip U3 and a pin 7 of the first control chip U1, a pin 7 of the third control chip U3 and a pin 6 of the first control chip U1.
The control circuit for the steam cabinet further comprises an input unit, and the input unit is electrically connected with the main control unit, the water level detection unit, the temperature detection unit, the alarm unit, the output driving unit and the timing unit respectively.
In the control circuit for the steam cabinet, the input unit comprises a rectifying part and a voltage stabilizing part which are sequentially connected, the rectifying part is respectively electrically connected with the output driving unit and the alarm unit, and the voltage stabilizing part is respectively electrically connected with the main control unit, the water level detection unit, the temperature detection unit and the timing unit.
The application also provides a PCB board printed with the control circuit for the steam cabinet.
Has the advantages that:
the utility model provides a control circuit for a steam cabinet, wherein a water level detection unit detects the water level in the steam cabinet, if the water level is lower than a preset lower limit water level, the water level in the steam cabinet is insufficient, the water level detection unit sends a feedback signal to a main control unit, the main control unit sends a control signal to an output driving unit according to the feedback signal, the output driving unit drives an alarm unit to start according to the control signal, the alarm unit sends out a warning voice to prompt a user that the water level in the steam cabinet is insufficient, the user is reminded to add water to prevent the water in the steam cabinet from being dried, and serious safety problems are avoided.
Drawings
Fig. 1 is a circuit block diagram of a control circuit for a steam cabinet provided by the utility model;
fig. 2 is a circuit structure diagram of the main control unit in the control circuit for the steam cabinet provided by the utility model;
FIG. 3 is a circuit structure diagram of the water level detection unit and the temperature detection unit in the control circuit for the steam cabinet provided by the utility model;
fig. 4 is a circuit structure diagram of the output driving unit and the alarm unit in the control circuit for the steam cabinet provided by the utility model;
fig. 5 is a circuit structure diagram of the timing unit in the control circuit for the steam cabinet provided by the utility model;
fig. 6 is a circuit structure diagram of the input unit in the control circuit for the steam cabinet provided by the utility model.
Description of the main element symbols: 1-a main control unit, 2-a temperature detection unit, 3-a water level detection unit, 4-an alarm unit, 5-an output drive unit, 6-a timing unit and 7-an input unit.
Detailed Description
The utility model provides a control circuit for a steam cabinet and a PCB (printed Circuit Board) thereof, and in order to make the purpose, technical scheme and effect of the utility model clearer and clearer, the utility model is further described in detail by referring to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit indication of the number of technical features indicated.
Referring to fig. 1 to 6, the present invention provides a control circuit for a steam cabinet, including a main control unit 1, a water level detection unit 3, an alarm unit 4 and an output driving unit 5, wherein the water level detection unit 3 and the output driving unit 5 are respectively electrically connected to the main control unit 1, and the alarm unit 4 is connected to the output driving unit 5; the water level detection unit 3 is used for detecting the water storage amount in the steaming cabinet, the alarm unit 4 is used for giving out warning voice, and the output driving unit 5 is used for controlling the alarm unit 4 and the using state of the steaming cabinet.
The working principle of the application is as follows: the water level detection unit 3 detects the water level inside the steam cabinet, if the water level is lower than a preset lower limit water level, the water storage amount in the steam cabinet is insufficient, the water level detection unit 3 sends a feedback signal to the main control unit 1, the main control unit 1 sends a control signal to the output driving unit 5 according to the feedback signal, the output driving unit 5 drives the alarm unit 4 to start according to the control signal, and the alarm unit 4 sends out a warning voice to prompt a user that the water storage amount in the steam cabinet is insufficient, so that the user is reminded to add water to prevent the water in the steam cabinet from being dried, and serious safety problems are avoided.
In the present embodiment, the alarm unit 4 may be a buzzer.
As shown in fig. 1 to fig. 3, further, the control circuit for the steam cabinet further includes a temperature detection unit 2, and the temperature detection unit 2 is electrically connected to the main control unit 1; the temperature detection unit 2 is used for detecting the working temperature of the steaming cabinet; evaporate and be provided with display device on the cabinet, main control unit 1 and display device electric connection, the operating temperature in the cabinet is evaporated in the real-time detection of temperature detecting element 2 to pass through temperature data on main control unit 1 sends to display device, user of service accessible display device learns the operating temperature who evaporates the cabinet at present.
As shown in fig. 1 to 5, further, the control circuit for the steam cabinet further includes a timing unit 6, and the timing unit 6 is electrically connected to the main control unit 1; the working time that the cabinet was evaporated in the main control unit 1 preliminary setting of user's accessible, through timing unit 6 times, if the working time reaches preset working time, timing unit 6 then to main control unit 1 sends feedback signal, main control unit 1 according to feedback signal to output drive unit 5 sends control signal, output drive unit 5 according to control signal drive alarm unit 4 starts, alarm unit 4 sends voice prompt user and evaporates the cabinet work and accomplish.
As shown in fig. 1 to 5, further, the main control unit 1 includes a first control chip U1, a pin 1 of the first control chip U1 is connected to the water level detection unit 3, a pin 19 of the first control chip U1 is connected to the temperature detection unit 2, a pin 11, a pin 12, and a pin 18 of the first control chip U1 are respectively connected to the output driving unit 5, and a pin 5, a pin 6, and a pin 7 of the first control chip U1 are respectively connected to the timing unit 6; in this embodiment, the first control chip U1 may be a single chip microcomputer with model number STC15W408 AS.
In the present embodiment, the water level detection unit 3 includes a water level sensor (not shown in the drawings) and a first collection part, which is connected to the water level detection unit 3 and a pin 1 of the first control chip U1, respectively; the water level sensor is arranged in the steam cabinet and used for detecting the water level of the steam cabinet, and the water level data are converted into electric signals through the first acquisition part and sent to the main control unit 1.
In the present embodiment, the temperature detection unit 2 includes a temperature sensor (not shown in the figure) and a second collection portion, which is connected to the temperature detection unit 2 and the pin 19 of the first control chip U1, respectively; the temperature sensor is arranged in the steam cabinet and used for detecting the working temperature of the steam cabinet, and the second acquisition part converts temperature data into electric signals and sends the electric signals to the main control unit 1.
As shown in fig. 1 to 4, the output driving unit 5 further includes a second control chip U2, the pin 2 of the second control chip U2 is connected to the pin 18 of the first control chip U1, the pin 6 of the second control chip U2 is connected to the pin 12 of the first control chip U1, the pin 7 of the second control chip U2 is connected to the pin 11 of the first control chip U1, and the pin 15 of the second control chip U2 is connected to the alarm unit 4; the steam cabinet further comprises a heating mechanism and an air exhaust mechanism, the heating mechanism is used for heating water, the air exhaust mechanism is used for exhausting water vapor, a pin 10 of the second control chip U2 is connected with the heating mechanism, and a pin 10 of the second control chip U2 is connected with the air exhaust mechanism; the main control unit 1 can control the working states of the heating mechanism and the air exhaust mechanism through the output driving unit 5. In this embodiment, the second control chip U2 may be a drive control chip with a model number ULN 2003.
As shown in fig. 1 to 5, the timing unit 6 further includes a third control chip U3, a pin 5 of the third control chip U3 and a pin 9 of the first control chip U1, a pin 6 of the third control chip U3 and a pin 7 of the first control chip U1, a pin 7 of the third control chip U3 and a pin 6 of the first control chip U1; pin 2 and pin 3 of the third control chip U3 are connected to the crystal oscillator unit respectively; in this embodiment, the third control chip U3 may be a clock chip with model HT 1381.
As shown in fig. 1 to fig. 6, further, the control circuit for a steam cabinet further includes an input unit 7, and the input unit 7 is electrically connected to the main control unit 1, the water level detection unit 3, the temperature detection unit 2, the alarm unit 4, the output driving unit 5, and the timing unit 6 respectively; the input unit 7 supplies power to the main control unit 1, the water level detection unit 3, the temperature detection unit 2, the alarm unit 4, the output driving unit 5 and the timing unit 6.
As shown in fig. 1 to 6, further, the input unit 7 includes a rectifying portion and a voltage stabilizing portion, which are sequentially connected, the rectifying portion is electrically connected to the output driving unit 5 and the alarm unit 4, and the voltage stabilizing portion is electrically connected to the main control unit 1, the water level detecting unit 3, the temperature detecting unit 2, and the timing unit 6; the rectifying part is connected with an external 220V or 380V alternating current power supply and outputs a 12V direct current power supply, and the 12V direct current power supply flows into the voltage stabilizing part and then outputs a 5V direct current power supply.
In this embodiment, the voltage dropping unit includes a fourth control chip U4, pin 1 of the fourth control chip U4 is connected to a 12V power supply, pin 3 of the fourth control chip U4 outputs a 5V power supply, and pin 2 of the fourth control chip U4 is grounded; in this embodiment, the fourth control chip U4 may be a voltage regulator chip with model number L7805.
The application also provides a PCB board printed with the control circuit for the steam cabinet.
In summary, the water level detection unit 3 detects the water level inside the steam cabinet, if the water level is lower than the preset lower limit water level, the water level in the steam cabinet is insufficient, the water level detection unit 3 sends a feedback signal to the main control unit 1, the main control unit 1 sends a control signal to the output driving unit 5 according to the feedback signal, the output driving unit 5 drives the alarm unit 4 to start according to the control signal, and the alarm unit 4 sends out a warning voice to prompt a user that the water level in the steam cabinet is insufficient, so as to remind the user to add water to prevent the water in the steam cabinet from being dried, thereby avoiding causing serious safety problems.
It should be understood that the technical solutions and the inventive concepts according to the present invention may be equally replaced or changed by those skilled in the art, and all such changes or substitutions should fall within the protection scope of the appended claims.
Claims (9)
1. A control circuit for a steam cabinet is characterized by comprising a main control unit, a water level detection unit, an alarm unit and an output driving unit, wherein the water level detection unit and the output driving unit are respectively and electrically connected with the main control unit, and the alarm unit is connected with the output driving unit; the water level detection unit is used for detecting the water storage amount in the steam cabinet, the alarm unit is used for sending out warning voice, and the output driving unit is used for controlling the alarm unit and the use state of the steam cabinet.
2. The control circuit for the steam cabinet according to claim 1, further comprising a temperature detection unit, wherein the temperature detection unit is electrically connected with the main control unit; the temperature detection unit is used for detecting the working temperature of the steaming cabinet.
3. The control circuit for the steam cabinet according to claim 2, further comprising a timing unit, wherein the timing unit is electrically connected to the main control unit.
4. The control circuit for the steam cabinet as claimed in claim 3, wherein the main control unit comprises a first control chip U1, pin 1 of the first control chip U1 is connected to the water level detection unit, pin 19 of the first control chip U1 is connected to the temperature detection unit, pin 11, pin 12 and pin 18 of the first control chip U1 are respectively connected to the output driving unit, and pin 5, pin 6 and pin 7 of the first control chip U1 are respectively connected to the timing unit.
5. The control circuit for the steam cabinet as claimed in claim 4, wherein the output driving unit comprises a second control chip U2, pin 2 of the second control chip U2 is connected with pin 18 of the first control chip U1, pin 6 of the second control chip U2 is connected with pin 12 of the first control chip U1, pin 7 of the second control chip U2 is connected with pin 11 of the first control chip U1, and pin 15 of the second control chip U2 is connected with the alarm unit.
6. The control circuit for the steam cabinet as claimed in claim 4, wherein the timing unit comprises a third control chip U3, a pin 5 of the third control chip U3 and a pin 9 of the first control chip U1, a pin 6 of the third control chip U3 and a pin 7 of the first control chip U1, a pin 7 of the third control chip U3 and a pin 6 of the first control chip U1.
7. The control circuit for the steam cabinet according to claim 3, further comprising an input unit, wherein the input unit is electrically connected to the main control unit, the water level detection unit, the temperature detection unit, the alarm unit, the output driving unit and the timing unit, respectively.
8. The control circuit for the steam cabinet according to claim 7, wherein the input unit comprises a rectifying part and a voltage stabilizing part which are sequentially connected, the rectifying part is electrically connected with the output driving unit and the alarm unit respectively, and the voltage stabilizing part is electrically connected with the main control unit, the water level detection unit, the temperature detection unit and the timing unit respectively.
9. A PCB board, characterized in that the PCB board is printed with the control circuit for the steam cabinet as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121121694.6U CN215838457U (en) | 2021-05-24 | 2021-05-24 | Control circuit for steaming cabinet and PCB (printed circuit board) thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121121694.6U CN215838457U (en) | 2021-05-24 | 2021-05-24 | Control circuit for steaming cabinet and PCB (printed circuit board) thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215838457U true CN215838457U (en) | 2022-02-18 |
Family
ID=80316855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121121694.6U Active CN215838457U (en) | 2021-05-24 | 2021-05-24 | Control circuit for steaming cabinet and PCB (printed circuit board) thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215838457U (en) |
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2021
- 2021-05-24 CN CN202121121694.6U patent/CN215838457U/en active Active
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