Temperature sensing control system for factory building

By designing a temperature sensing control system including temperature sensors, resistors, potentiometers, normally closed contacts, triodes and thyristors, the temperature difference problem of multiple temperature sensors in the prior art detecting the temperature in the same area is solved, and precise control of the factory temperature and coordination of equipment operation are achieved.

CN222748897UActive Publication Date: 2025-04-11JIANGSU ZHONGJIEXIN ENVIRONMENTAL ENG CO LTD
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Patent Information

Application Number
CN202421685984.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-04-11
Estimated Expiration
2034-07-17

AI Technical Summary

Technical Problem

When multiple temperature sensors detect the temperature in the same area, there are temperature differences in existing temperature sensing control systems, resulting in inconsistent operation of multiple equipment at the same temperature and the inability to effectively control the temperature of the factory.

Method used

A temperature sensing control system for factory buildings is designed, and the temperature sensor U1 is used to detect the factory buildings. The output voltage path is adjusted using resistors R1, R2, R3 and potentiometers T1, T2, T3, and normally closed contacts S1, S2, S3, and S4 for on-off switching. The transistor Q2 is used for alarm prompts, and the thyristor U7 controls the connection of terminal strips J1 and J2 to achieve response to different temperatures.

Benefits of technology

The system can accurately control the operation or stop of multiple equipment according to changes in the temperature of the factory, ensuring that the temperature of the factory is within the set range, and solving the problem of inconsistent equipment operation caused by temperature differences.

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Abstract

The utility model discloses a temperature sensing control system for a factory building. The temperature sensing control system comprises a temperature detection module, a sensing control module, a switching module, a warning module and a triggering module, the temperature of a plant is detected through the temperature sensor U1, output voltage is converted according to the change of the detected temperature, the output voltage is subjected to voltage division adjustment through the resistor R1, the resistor R2 and the resistor R3, and then the transmission path of the output voltage is controlled according to the adjustment of different resistance values of the potentiometer T1, the potentiometer T2 and the potentiometer T3. The normally-closed contact S1, the normally-closed contact S2, the normally-closed contact S3 and the normally-closed contact S4 are switched on and off according to the transmission path of the output voltage; the silicon controlled rectifier U7 performs on-off control on the connection of the terminal strip J1 and the terminal strip J2, so as to drive different terminal strips J2 to be connected with equipment according to the change of different temperatures of the factory building, so that the temperature of the factory building is kept within a set range.
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Description

Technical Field

[0001] The utility model relates to the technical field of temperature control, in particular to a temperature sensing control system for a factory building. Background Art

[0002] Temperature sensing control detects the ambient temperature through a temperature sensor and converts it into an electrical signal; the electrical signal changes voltage or current according to time; existing temperature sensing controls all control the on / off of connected devices based on the set temperature value. When controlling the operation of different devices at different temperatures, it is necessary to use an independent temperature detector to detect the factory, so that when multiple temperature sensors detect the temperature of the same area, a temperature difference occurs. The temperature difference causes multiple connected devices to operate at the same temperature. Therefore, it is necessary to control the operation or stop of multiple connected devices according to the detected temperature under one temperature sensor to make the temperature of the factory meet the requirements. Utility Model Content

[0003] Purpose of the utility model: to provide a temperature sensing control system for a factory building to solve the above-mentioned problems existing in the prior art.

[0004] Technical solution: A temperature sensing control system for a factory building, including:

[0005] The temperature detection module detects the temperature of the factory through the temperature sensor U1 and converts the output voltage according to the change of the detected temperature.

[0006] The induction control module controls the path of the output voltage by adjusting the different resistance values ​​of potentiometers T1, T2 and T3;

[0007] A switching module switches the path of the output voltage through a normally closed contact S1, a normally closed contact S2, a normally closed contact S3 and a normally closed contact S4;

[0008] The warning module alarms the output voltage path of the potentiometer T3 by turning on the transistor Q2;

[0009] The trigger module controls the on / off connection between the terminal block J1 and the terminal block J2 through the thyristor U7.

[0010] In a further embodiment, the temperature detection module includes a temperature sensor U1, a transistor Q1 and an AND gate U2; the AND gate U2 pin 1 is respectively connected to the temperature sensor U1 pin 1, the transistor Q1 collector terminal and the input power supply +12V, the AND gate U2 pin 2 is connected to the temperature sensor U1 pin 2, the temperature sensor U1 pin 3 is connected to the ground wire GND, the AND gate U2 pin 3 is connected to the transistor Q1 base terminal, and the transistor Q1 emitter terminal is connected to the earth PE.

[0011] In a further embodiment, the sensing control module includes a resistor R1, a resistor R2, a resistor R3, a potentiometer T1, a potentiometer T2, a potentiometer T3, a thyristor U3 and a thyristor U4; one end of the resistor R1 is connected to pin 2 of the temperature sensor U1, the other end of the resistor R1 is respectively connected to one end of the resistor R2 and pin 2 of the thyristor T1, the other end of the resistor R2 is respectively connected to one end of the resistor R3 and the positive end of the thyristor U3, the negative end of the thyristor U3 is connected to pin 2 of the potentiometer T2, the pin 1 of the thyristor U3 is connected to pin 1 and pin 3 of the potentiometer T1, the other end of the resistor R3 is connected to the positive end of the thyristor U4, the negative end of the thyristor U4 is connected to pin 2 of the potentiometer T3, and the pin 1 of the thyristor U4 is connected to pin 1 and pin 3 of the potentiometer T2.

[0012] In a further embodiment, the switching module includes a normally closed switch S1, a normally closed switch S2, a normally closed contact S3, a normally closed contact S4, a diode D1 and a diode D2; one end of the normally closed contact S1 is connected to pin 1 of the thyristor U3, the other end of the normally closed contact S1 is connected to one end of the normally closed contact S2, the other end of the normally closed contact S2 is connected to the negative end of the diode D1, the positive end of the diode D1 is respectively connected to one end of the normally closed contact S4 and one end of the normally closed contact S3, the other end of the normally closed contact S4 is connected to the negative end of the diode D2, the positive end of the diode D2 is respectively connected to pin 1 of the normally closed contact S3, pin 1 of the normally closed contact S2, and pin 1 and pin 3 of the potentiometer T3; the other end of the normally closed contact S3 is respectively connected to pin 1 of the potentiometer T2 and pin 1 of the normally closed contact S1.

[0013] In a further embodiment, the warning module includes a transistor Q2 and a speaker L1; the base terminal of the transistor Q2 is respectively connected to one end of the speaker L1 and the positive end of the normal diode D2, the emitter terminal of the transistor Q2 is connected to the ground wire GND, and the collector terminal of the transistor Q2 is connected to the other end of the speaker L1.

[0014] In a further embodiment, the trigger module includes a terminal row J1, a terminal row J2, a thyristor U5, a thyristor U6 and a thyristor U7; the positive terminal of the thyristor U5 is connected to pin 1 of the terminal row J1, the negative terminal of the thyristor U5 is connected to pin 1 of the terminal row J2, the positive terminal of the thyristor U6 is connected to pin 2 of the terminal row J1, the negative terminal of the thyristor U6 is connected to pin 2 of the terminal row J2, the positive terminal of the thyristor U7 is connected to pin 3 of the terminal row J1, the negative terminal of the thyristor U7 is respectively connected to pin 3 of the terminal row J2 and pin 1 of the normally closed contact S4, the pin 1 of the thyristor U5 is connected to the negative terminal of the diode D1, the pin 1 of the thyristor U6 is connected to the positive terminal of the diode D1, and the pin 1 of the thyristor U7 is connected to the control terminal IN.

[0015] In a further embodiment, the temperature sensor U1 is of model DS18B20; the transistor Q1 and the transistor Q2 are both NPN; the thyristors U3, U4, U5, U6 and U7 are all unidirectional thyristors.

[0016] Beneficial effect: The utility model discloses a temperature sensing control system for a factory building. The utility model detects the temperature of the factory building through the temperature sensor U1, converts the output voltage according to the change of the detected temperature, and adjusts the output voltage by voltage division by resistors R1, R2 and R3. Then, according to the adjustment of different resistance values ​​of potentiometers T1, T2 and T3, the transmission path of the output voltage is controlled. Normally closed contacts S1, S2, S3 and S4 are switched on / off according to the transmission path of the output voltage. The conduction of the transistor Q2 indicates that the factory building temperature exceeds the maximum set temperature value, and then an alarm is given to the path of the output voltage of the potentiometer T3. The thyristor U7 controls the connection between the terminal block J1 and the terminal block J2 on / off, and then drives different terminal block J2 connected devices according to the changes in different factory temperatures, so that the factory building temperature is kept within the set range. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a circuit distribution diagram of the utility model. DETAILED DESCRIPTION

[0018] The utility model uses a temperature sensing control system for a factory building. The temperature of the factory building is detected by a temperature sensor U1, and the output voltage is converted according to the change of the detected temperature. Resistors R1, R2 and R3 divide the output voltage for voltage regulation. The scheme is described in detail below through specific embodiments.

[0019] Reference Figure 1 As shown, a temperature sensing control system for a factory building comprises:

[0020] The temperature detection module includes a temperature sensor U1, a transistor Q1 and an AND gate U2.

[0021] The AND gate U2 pin 1 is respectively connected to the temperature sensor U1 pin 1, the collector terminal of the transistor Q1 and the input power supply +12V, the AND gate U2 pin 2 is connected to the temperature sensor U1 pin 2, the temperature sensor U1 pin 3 is connected to the ground wire GND, the AND gate U2 pin 3 is connected to the base terminal of the transistor Q1, and the emitter terminal of the transistor Q1 is connected to the earth PE; the temperature sensor U1 detects the temperature of the factory building and converts the output voltage according to the change of the detected temperature.

[0022] The induction control module includes a resistor R1, a resistor R2, a resistor R3, a potentiometer T1, a potentiometer T2, a potentiometer T3, a thyristor U3 and a thyristor U4.

[0023] One end of the resistor R1 is connected to pin 2 of the temperature sensor U1, and the other end of the resistor R1 is respectively connected to one end of the resistor R2 and pin 2 of the thyristor T1, the other end of the resistor R2 is respectively connected to one end of the resistor R3 and the positive end of the thyristor U3, the negative end of the thyristor U3 is connected to pin 2 of the potentiometer T2, the pin 1 of the thyristor U3 is connected to pin 1 and pin 3 of the potentiometer T1, the other end of the resistor R3 is connected to the positive end of the thyristor U4, the negative end of the thyristor U4 is connected to pin 2 of the potentiometer T3, and the pin 1 of the thyristor U4 is connected to pin 1 and pin 3 of the potentiometer T2; the potentiometers T1, T2 and T3 are adjusted with different resistance values ​​to control the path of the output voltage.

[0024] A switching module, wherein the switching module includes a normally closed switch S1, a normally closed switch S2, a normally closed contact S3, a normally closed contact S4, a diode D1 and a diode D2.

[0025] One end of the normally closed contact S1 is connected to pin 1 of the thyristor U3, the other end of the normally closed contact S1 is connected to one end of the normally closed contact S2, the other end of the normally closed contact S2 is connected to the negative end of the diode D1, the positive end of the diode D1 is respectively connected to one end of the normally closed contact S4 and one end of the normally closed contact S3, the other end of the normally closed contact S4 is connected to the negative end of the diode D2, the positive end of the diode D2 is respectively connected to pin 1 of the normally closed contact S3, pin 1 of the normally closed contact S2, and pin 1 and pin 3 of the potentiometer T3; the other end of the normally closed contact S3 is respectively connected to pin 1 of the potentiometer T2 and pin 1 of the normally closed contact S1, and the normally closed contact S1, the normally closed contact S2, the normally closed contact S3 and the normally closed contact S4 switch the path of the output voltage.

[0026] The warning module includes a transistor Q2 and a speaker L1.

[0027] The base terminal of the transistor Q2 is respectively connected to one end of the speaker L1 and the positive terminal of the normal diode D2, the emitter terminal of the transistor Q2 is connected to the ground wire GND, and the collector terminal of the transistor Q2 is connected to the other end of the speaker L1. The conduction of the transistor Q2 alarms the path of the output voltage of the potentiometer T3.

[0028] A trigger module, wherein the trigger module includes a terminal block J1, a terminal block J2, a thyristor U5, a thyristor U6 and a thyristor U7.

[0029] The positive terminal of the thyristor U5 is connected to pin 1 of the terminal row J1, the negative terminal of the thyristor U5 is connected to pin 1 of the terminal row J2, the positive terminal of the thyristor U6 is connected to pin 2 of the terminal row J1, the negative terminal of the thyristor U6 is connected to pin 2 of the terminal row J2, the positive terminal of the thyristor U7 is connected to pin 3 of the terminal row J1, the negative terminal of the thyristor U7 is respectively connected to pin 3 of the terminal row J2 and pin 1 of the normally closed contact S4, the pin 1 of the thyristor U5 is connected to the negative terminal of the diode D1, the pin 1 of the thyristor U6 is connected to the positive terminal of the diode D1, the pin 1 of the thyristor U7 is connected to the control terminal IN, and the thyristor U7 performs on / off control on the connection between the terminal row J1 and the terminal row J2.

[0030] Working principle description: First, the pins 1, 2 and 3 of the terminal block J1 are connected to the power supply end, and the pins 1, 2 and 3 of the terminal block J2 are connected to the equipment end. The temperature sensor U1 is powered and detects the temperature of the factory. During the operation of the temperature sensor U1, the AND gate U2 detects the input power supply and output power supply of the temperature sensor U1. If the input power supply voltage is consistent with the output power supply voltage, the temperature sensor U1 is determined to be in a fault state, and the AND gate U2 controls the transistor Q1 to be turned on, so that the temperature sensor U1 loses power; if the input power supply voltage is inconsistent with the output power supply voltage, the temperature sensor U1 outputs the corresponding voltage value according to the detected temperature value, and the resistors R1, R2 and R3 divide the output voltage and adjust it, and then transmit the divided voltage to the potentiometers T1, T2 and T3. The potentiometers T1, T2 and T3 increase their resistance values ​​in turn, so that different voltage values ​​output by the temperature sensor U1 pass through different output paths. The temperature sensor U1 controls the increase of the output voltage according to the increase of the temperature detection;

[0031] When the output voltage flows through the potentiometer T1, the thyristor U1 is energized and turned on, and the potentiometer T2 cuts off the low voltage. At this time, the output voltage normally closes the contact S1 and the normally closed contact S2, providing a trigger voltage to the thyristor U5 to connect the pin 1 of the terminal block J1 and the pin 2 of the terminal block J2;

[0032] When the output voltage flows through the potentiometer T1, the thyristor U1 and the thyristor U4 are electrically turned on, the potentiometer T2 turns on the high voltage, the potentiometer T3 cuts off the high voltage, and controls the normally closed contact S1 to be disconnected. At this time, the output voltage normally closes the contact S3 and the diode D1, and controls the thyristor U5 and the thyristor U6 to obtain the trigger voltage to connect the pins 1 and 2 of the terminal block J1 with the pins 1 and 2 of the terminal block J2.

[0033] When the output voltage flows through the potentiometer T1, the thyristor U1 and the thyristor U4 are energized and turned on, the potentiometer T2 turns on the high voltage, the potentiometer T3 turns on the ultra-high voltage, and controls the normally closed contact S3 to be disconnected, the transistor Q2 is energized to control the speaker L1 to sound for voice prompts, and the output voltage passes through the diode D2, the normally closed contact S4, and the diode D1, so that the thyristor U5 and the thyristor U6 obtain the trigger voltage to connect the pin 1 and pin 2 of the terminal block J1 with the pin 1 and pin 2 of the terminal block J2, and the pin 1 of the thyristor U7 controls the pin 1 of the normally closed contact S4, thereby controlling the on / off control of the output path of the ultra-high voltage to ensure the operation of the equipment connected to the terminal block J2 at different temperatures in the factory.

[0034] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A temperature sensing control system for a factory building, characterized in that: include: The temperature detection module detects the temperature of the factory through the temperature sensor U1 and converts the output voltage according to the change of the detected temperature. The induction control module controls the path of the output voltage by adjusting the different resistance values ​​of potentiometers T1, T2 and T3; A switching module switches the path of the output voltage through a normally closed contact S1, a normally closed contact S2, a normally closed contact S3 and a normally closed contact S4; The warning module alarms the output voltage path of the potentiometer T3 by turning on the transistor Q2; The trigger module controls the on / off connection between the terminal block J1 and the terminal block J2 through the thyristor U7.

2. A temperature sensing control system for a factory building according to claim 1, characterized in that: The temperature detection module includes a temperature sensor U1, a transistor Q1 and an AND gate U2; the AND gate U2 pin 1 is respectively connected to the temperature sensor U1 pin 1, the transistor Q1 collector terminal and the input power supply +12V, the AND gate U2 pin 2 is connected to the temperature sensor U1 pin 2, the temperature sensor U1 pin 3 is connected to the ground wire GND, the AND gate U2 pin 3 is connected to the transistor Q1 base terminal, and the transistor Q1 emitter terminal is connected to the earth PE.

3. A temperature sensing control system for a factory building according to claim 1, characterized in that: The induction control module includes a resistor R1, a resistor R2, a resistor R3, a potentiometer T1, a potentiometer T2, a potentiometer T3, a thyristor U3 and a thyristor U4; one end of the resistor R1 is connected to pin 2 of the temperature sensor U1, the other end of the resistor R1 is respectively connected to one end of the resistor R2 and pin 2 of the thyristor T1, the other end of the resistor R2 is respectively connected to one end of the resistor R3 and the positive end of the thyristor U3, the negative end of the thyristor U3 is connected to pin 2 of the potentiometer T2, the pin 1 of the thyristor U3 is connected to pin 1 and pin 3 of the potentiometer T1, the other end of the resistor R3 is connected to the positive end of the thyristor U4, the negative end of the thyristor U4 is connected to pin 2 of the potentiometer T3, and the pin 1 of the thyristor U4 is connected to pin 1 and pin 3 of the potentiometer T2.

4. A temperature sensing control system for a factory building according to claim 1, characterized in that: The switching module includes a normally closed switch S1, a normally closed switch S2, a normally closed contact S3, a normally closed contact S4, a diode D1 and a diode D2; one end of the normally closed contact S1 is connected to pin 1 of the thyristor U3, the other end of the normally closed contact S1 is connected to one end of the normally closed contact S2, the other end of the normally closed contact S2 is connected to the negative end of the diode D1, the positive end of the diode D1 is respectively connected to one end of the normally closed contact S4 and one end of the normally closed contact S3, the other end of the normally closed contact S4 is connected to the negative end of the diode D2, the positive end of the diode D2 is respectively connected to pin 1 of the normally closed contact S3, pin 1 of the normally closed contact S2, and pin 1 and pin 3 of the potentiometer T3; the other end of the normally closed contact S3 is respectively connected to pin 1 of the potentiometer T2 and pin 1 of the normally closed contact S1.

5. The temperature sensing control system for a factory building according to claim 1, characterized in that: The warning module includes a transistor Q2 and a speaker L1; the base terminal of the transistor Q2 is respectively connected to one end of the speaker L1 and the positive terminal of the diode D2, the emitter terminal of the transistor Q2 is connected to the ground wire GND, and the collector terminal of the transistor Q2 is connected to the other end of the speaker L1.

6. A temperature sensing control system for a factory building according to claim 1, characterized in that: The trigger module includes terminal row J1, terminal row J2, thyristor U5, thyristor U6 and thyristor U7; the positive terminal of the thyristor U5 is connected to pin 1 of the terminal row J1, the negative terminal of the thyristor U5 is connected to pin 1 of the terminal row J2, the positive terminal of the thyristor U6 is connected to pin 2 of the terminal row J1, the negative terminal of the thyristor U6 is connected to pin 2 of the terminal row J2, the positive terminal of the thyristor U7 is connected to pin 3 of the terminal row J1, the negative terminal of the thyristor U7 is respectively connected to pin 3 of the terminal row J2 and pin 1 of the normally closed contact S4, the pin 1 of the thyristor U5 is connected to the negative terminal of the diode D1, the pin 1 of the thyristor U6 is connected to the positive terminal of the diode D1, and the pin 1 of the thyristor U7 is connected to the control terminal IN.