CN211956234U - Self-starting energy-saving circuit of greenhouse big shed - Google Patents
Self-starting energy-saving circuit of greenhouse big shed Download PDFInfo
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- CN211956234U CN211956234U CN202020314825.1U CN202020314825U CN211956234U CN 211956234 U CN211956234 U CN 211956234U CN 202020314825 U CN202020314825 U CN 202020314825U CN 211956234 U CN211956234 U CN 211956234U
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Abstract
The utility model discloses a self-starting energy-saving circuit of big canopy of greenhouse belongs to the electronic circuit field, the utility model discloses a set up temperature detect switch, when temperature detect switch reaches the lower limit, automatic switching on, electric capacity C1 charges through resistance R1, after the value that stabilivolt D3 set for was reachd to electric capacity C1's voltage, MSOFET pipe T2 switches on, triode T1 switches on thereupon, to the PWM chip power supply, when reaching the undervoltage blockade threshold voltage of PWM chip, PWM chip work, the switch circuit who sends PWM ripples control major control system switches on, realize energy-conserving effect, the condition that can switch on automatically again, can solve the idle power consumptive condition of current warmhouse booth control system.
Description
Technical Field
The utility model relates to an electronic circuit field especially relates to a self-starting energy-saving circuit of big canopy of greenhouse.
Background
In the human living environment, temperature and humidity play an extremely important role. Since the 18 th century industrial revolution, the industrial development is closely related to whether the temperature and humidity can be mastered. In the industries of metallurgy, steel, petrifaction, cement, glass, medicine and the like, it can be said that almost 80% of industrial departments have to consider the factors of temperature and humidity. The greenhouse technology is a good method. The greenhouse is to establish a climate condition suitable for the growth of organisms and create an artificial meteorological environment to eliminate the restriction of temperature on the growth of the organisms. Moreover, the greenhouse can overcome the limitation of the environment on the growth of organisms, so that different crops can be produced in seasons which are not suitable for growth, the seasons do not have excessive influence on the growth of the crops, and the dependence of the crops on natural conditions is greatly reduced. Due to the considerable economic benefit brought by the greenhouse, the greenhouse technology is more and more popular and becomes a main means for increasing the income of farmers.
The existing greenhouse control system is generally large, certain electric quantity is usually consumed at a control display part, but the greenhouse needs to automatically detect the ambient temperature and flexibly adjust the temperature, so that an automatic starting circuit needs to be designed in order to reduce the electric energy consumption of a main control part and the like, and the energy consumption is very high, so that the condition of monitoring the temperature in real time can be realized.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a self-starting energy-conserving circuit of big canopy of greenhouse solves the technical problem who mentions in the background art.
The utility model provides a self-starting energy-saving circuit of big canopy of greenhouse, includes battery, temperature detect switch, energy storage drive circuit, switch circuit and PWM chip, the output of battery is connected with energy storage drive circuit through temperature detect switch, energy storage drive circuit is connected with the PWM chip through switch circuit, and the output and the soft switch circuit of external control system of PWM chip are connected.
The energy storage driving circuit comprises a resistor R1, diodes D1-D2, an auxiliary winding L1 and a capacitor C1, one end of the resistor R1 is connected with an output end of a diode D1, one end of the capacitor C1, an output end of the diode D2 and a switch circuit, an input end of a diode D1 is connected with one end of the auxiliary winding L1, the other end of the auxiliary winding L1 is grounded, and the other end of the capacitor C1 is connected with an input end of a diode D2 and grounded.
The switch circuit comprises a diode D3, a triode T1, a MSOFET tube T2 and a resistor R2-R3, wherein an emission set of the triode T1 is connected with an output end of a diode D1, a base electrode of the triode T1 is connected with one end of the resistor R3, a collector electrode of the triode T1 is connected with one end of the resistor R2 and a PWM chip, an S electrode of the MSOFET tube T2 is grounded, a D electrode of the MSOFET tube T2 is connected with the other end of the resistor R3, and a G electrode of the MSOFET tube T2 is connected with the other end of the resistor R2 and an input end of the diode D3.
The storage battery is a rechargeable storage battery with 18-24V.
The voltage stabilizing value of the diode D3 is 12V, the starting voltage of the MSOFET tube T2 is 2V, and the voltage stabilizing value of the diode D2 is 12-18V.
The utility model adopts the above technical scheme, the utility model discloses following technological effect has:
the utility model discloses a set up temperature detect switch, when temperature detect switch detects the temperature and reaches the lower limit, automatically, electric capacity C1 charges through resistance R1, after electric capacity C1's voltage reachs the value that stabilivolt D3 set for, MSOFET pipe T2 switches on, triode T1 switches on thereupon, to the PWM chip power supply, when reaching the under-voltage blockade threshold voltage of PWM chip, the PWM chip work, the switch circuit who sends PWM ripples control major control system switches on, realize energy-conserving effect, the condition that can switch on again automatically, can solve the idle power consumptive condition of current warmhouse booth control system.
Drawings
Fig. 1 is a schematic block circuit diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
As shown in fig. 1-2, according to the utility model discloses a self-starting energy-saving circuit of big canopy of greenhouse, including battery, temperature detect switch, energy storage drive circuit, switch circuit and PWM chip, the output of battery is connected with energy storage drive circuit through temperature detect switch, energy storage drive circuit is connected with the PWM chip through switch circuit, and the output and the soft switch circuit of external control system of PWM chip are connected.
The energy storage driving circuit comprises a resistor R1, diodes D1-D2, an auxiliary winding L1 and a capacitor C1, one end of the resistor R1 is connected with an output end of a diode D1, one end of the capacitor C1, an output end of the diode D2 and a switch circuit, an input end of a diode D1 is connected with one end of the auxiliary winding L1, the other end of the auxiliary winding L1 is grounded, and the other end of the capacitor C1 is connected with an input end of a diode D2 and grounded.
The switch circuit comprises a diode D3, a triode T1, a MSOFET tube T2 and a resistor R2-R3, wherein an emission set of the triode T1 is connected with an output end of a diode D1, a base electrode of the triode T1 is connected with one end of the resistor R3, a collector electrode of the triode T1 is connected with one end of the resistor R2 and a PWM chip, an S electrode of the MSOFET tube T2 is grounded, a D electrode of the MSOFET tube T2 is connected with the other end of the resistor R3, and a G electrode of the MSOFET tube T2 is connected with the other end of the resistor R2 and an input end of the diode D3. The storage battery is a rechargeable storage battery with 18-24V. The voltage stabilizing value of the diode D3 is 12V, the starting voltage of the MSOFET tube T2 is 2V, and the voltage stabilizing value of the diode D2 is 12-18V.
The temperature control switch selects a bakelite temperature controller with the model of KSD301-V, and the PWM chip selects a chip with the model of EG 3525.
When the temperature control switch detects that the temperature reaches the lower limit, the temperature control switch is automatically conducted, the capacitor C1 is charged through the resistor R1, when the voltage of the capacitor C1 reaches the value set by the voltage regulator tube D3, the MSOFET tube T2 is conducted, the triode T1 is conducted along with the voltage regulator tube, power is supplied to the PWM chip, when the undervoltage blocking threshold voltage of the PWM chip is reached, the PWM chip works, and the PWM wave is sent out to control the conduction of a switching circuit of the main control system. The capacitor C1 stores energy to provide energy needed by the control circuit and the switch tube, so that the main control circuit works stably, and the auxiliary winding L1 is powered by the diode D1. The voltage stabilizing diode D2 prevents that the chip is damaged to the too high voltage, and the steady voltage range is 12-18V, and on the premise of satisfying the circuit opening speed, the resistance of R1 is as big as possible, the spoon loss, and the capacity group of electric capacity C1 will satisfy the demand of supply voltage. The transistor T1 and the MSOFET transistor T2 are both initially off.
It should be noted that: in the starting time, the voltage drop value of the capacitor needs to be smaller than the voltage difference of the hysteresis loop, otherwise, the PWM chip recovers to a Zener state, and the capacitor is charged again, so that the periodic starting is caused.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a self-starting energy-conserving circuit of big canopy of greenhouse which characterized in that: including battery, temperature detect switch, energy storage drive circuit, switch circuit and PWM chip, the output of battery is connected with energy storage drive circuit through temperature detect switch, energy storage drive circuit is connected with the PWM chip through switch circuit, and the output and the soft switch circuit of external control system of PWM chip are connected.
2. The self-starting energy-saving circuit of the greenhouse big shed as claimed in claim 1, wherein: the energy storage driving circuit comprises a resistor R1, diodes D1-D2, an auxiliary winding L1 and a capacitor C1, one end of the resistor R1 is connected with an output end of a diode D1, one end of the capacitor C1, an output end of the diode D2 and a switch circuit, an input end of a diode D1 is connected with one end of the auxiliary winding L1, the other end of the auxiliary winding L1 is grounded, and the other end of the capacitor C1 is connected with an input end of a diode D2 and grounded.
3. The self-starting energy-saving circuit of the greenhouse big shed as claimed in claim 2, characterized in that: the switch circuit comprises a diode D3, a triode T1, a MSOFET tube T2 and a resistor R2-R3, wherein an emission set of the triode T1 is connected with an output end of a diode D1, a base electrode of the triode T1 is connected with one end of the resistor R3, a collector electrode of the triode T1 is connected with one end of the resistor R2 and a PWM chip, an S electrode of the MSOFET tube T2 is grounded, a D electrode of the MSOFET tube T2 is connected with the other end of the resistor R3, and a G electrode of the MSOFET tube T2 is connected with the other end of the resistor R2 and an input end of the diode D3.
4. The self-starting energy-saving circuit of the greenhouse big shed as claimed in claim 1, wherein: the storage battery is a rechargeable storage battery with 18-24V.
5. The self-starting energy-saving circuit of the greenhouse big shed as claimed in claim 3, wherein: the voltage stabilizing value of the diode D3 is 12V, the starting voltage of the MSOFET tube T2 is 2V, and the voltage stabilizing value of the diode D2 is 12-18V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020314825.1U CN211956234U (en) | 2020-03-14 | 2020-03-14 | Self-starting energy-saving circuit of greenhouse big shed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020314825.1U CN211956234U (en) | 2020-03-14 | 2020-03-14 | Self-starting energy-saving circuit of greenhouse big shed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211956234U true CN211956234U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020314825.1U Expired - Fee Related CN211956234U (en) | 2020-03-14 | 2020-03-14 | Self-starting energy-saving circuit of greenhouse big shed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211956234U (en) |
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2020
- 2020-03-14 CN CN202020314825.1U patent/CN211956234U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201117 Termination date: 20210314 |
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| CF01 | Termination of patent right due to non-payment of annual fee |