CN117060335B - Generating set electricity generation emergency protection circuit - Google Patents

Generating set electricity generation emergency protection circuit Download PDF

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Publication number
CN117060335B
CN117060335B CN202311317731.4A CN202311317731A CN117060335B CN 117060335 B CN117060335 B CN 117060335B CN 202311317731 A CN202311317731 A CN 202311317731A CN 117060335 B CN117060335 B CN 117060335B
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module
distance
diode
generator set
resistor
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CN117060335A (en
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陈丽冰
张城
叶建雄
李泽强
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United Watt Technologies Ltd
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United Watt Technologies Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/12Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to undesired approach to, or touching of, live parts by living beings

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  • Burglar Alarm Systems (AREA)

Abstract

The invention discloses an emergency protection circuit for generating set power generation, which relates to the field of safety protection, and comprises: the infrared detection module is used for detecting whether a protection object approaches to the generator set or not through an infrared distance sensor and outputting different voltages according to different distances; compared with the prior art, the invention has the beneficial effects that: when detecting that a person or a pet reaches a dangerous area of a generator set, the first distance alarm module gives an audible and visual alarm prompt; when a person or a pet further approaches the generator set, the second distance power-off module turns off the switch of the generator set and the load, and the generator set and the load stop working to protect the approaching person or pet; in addition, when the second distance outage module works, the grounding pressure relief module is triggered to work, electric energy stored in the outage generator set and the capacitive devices in the load is discharged, and when people or pets touch the generator set, the shell of the generator set is ensured to be electroless.

Description

Generating set electricity generation emergency protection circuit
Technical Field
The invention relates to the field of safety protection, in particular to an emergency protection circuit for generating set power generation.
Background
In daily life, a generator set is an indispensable device, and with the needs of individuals, a generator set suitable for families has also appeared.
In the operation process of the generator set, the default is that the generator set and all electrical equipment are electrified, contact should be avoided, and although the small-sized domestic generator set can be isolated and placed, pets and children are not clear of the information, danger exists when the information is touched, and improvement is needed.
Disclosure of Invention
The invention aims to provide an emergency protection circuit for generating set power generation, which solves the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
an emergency protection circuit for generating set power generation, comprising:
the alternating current power supply module is used for converting alternating current into direct current and outputting the direct current to the direct current power supply module, the infrared detection module, the first distance alarm module and the second distance power-off module;
the direct current power supply module is used for supplying power to the infrared detection module, the first distance alarm module and the second distance power-off module after the alternating current power supply module is powered off;
the infrared detection module is used for detecting whether a protection object (a person or a pet) approaches the generator set or not through an infrared distance sensor and outputting different voltages according to different distances;
the first distance alarm module is used for emitting light to sound to prompt a person or a pet when the person or the pet reaches a first distance from the generator set;
the second distance power-off module is used for switching off the switch of the generator set and the load when the person or the pet reaches a second distance from the generator set;
the grounding pressure relief module is used for grounding the generator set and the load when a person or a pet gets a second distance from the generator set, and discharging the voltage on the capacitive devices in the generator set and the load;
the output end of the alternating current power supply module is connected with the input end of the direct current power supply module, the output end of the direct current power supply module is connected with the input end of the infrared detection module, the first input end of the first distance alarm module and the first input end of the second distance power-off module, the first output end of the infrared detection module is connected with the second input end of the first distance alarm module, the second output end of the infrared detection module is connected with the second input end of the second distance power-off module, and the output end of the second distance power-off module is connected with the input end of the grounding pressure relief module.
As still further aspects of the invention: the alternating current power supply module comprises a transformer, a rectifier, a first capacitor, a second capacitor, a first inductor, a first resistor and a first diode, 220V alternating current is introduced into the input end of the transformer, one end of the output end of the transformer is connected with the M1 end of the rectifier, the other end of the output end of the transformer is connected with the M3 end of the rectifier, the M2 end of the rectifier is grounded, the M4 end of the rectifier is connected with one end of the first capacitor and one end of the first inductor, the other end of the first capacitor is grounded, the other end of the first inductor is connected with one end of the second capacitor and one end of the first resistor, the other end of the second capacitor is grounded, the other end of the first resistor is connected with the anode of the first diode, and the cathode of the first diode is connected with the input end of the direct current power supply module.
As still further aspects of the invention: the direct current power supply module comprises a battery and a second diode, wherein the anode of the battery is connected with the cathode of the second diode, the input end of the infrared detection module, the first input end of the first distance alarm module and the first input end of the second distance power-off module, the cathode of the battery is grounded, and the anode of the second diode is grounded.
As still further aspects of the invention: the infrared detection module comprises an infrared distance sensor, a second resistor, a first potentiometer and a second potentiometer, wherein the power end of the infrared distance sensor is connected with the output end of the direct current power supply module, the grounding end of the infrared distance sensor is grounded, the output end of the infrared distance sensor is connected with one end of the second resistor, the other end of the second resistor is connected with one end of the first potentiometer and the second input end of the first distance alarm module, the other end of the first potentiometer is connected with the second input end of the second distance power-off module and one end of the second potentiometer, and the other end of the second potentiometer is grounded.
As still further aspects of the invention: the first distance alarm module comprises a third diode, a third resistor, a first MOS tube, a fourth diode and a loudspeaker, wherein the negative electrode of the third diode is connected with the first output end of the infrared detection module, the positive electrode of the third diode is connected with one end of the third resistor, the G electrode of the first MOS tube, the other end of the third resistor is grounded, the D electrode of the first MOS tube is connected with the output end of the direct current power supply module, the S electrode of the first MOS tube is connected with the positive electrode of the fourth diode, the negative electrode of the fourth diode is connected with one end of the loudspeaker, and the other end of the loudspeaker is grounded.
As still further aspects of the invention: the second distance outage module comprises a fourth resistor, a fifth diode, a fifth resistor, a silicon controlled rectifier, a sixth diode, a relay and a seventh diode, one end of the fourth resistor is connected with the second output end of the infrared detection module, the other end of the fourth resistor is connected with the negative electrode of the fifth diode, the positive electrode of the fifth diode is connected with one end of the fifth resistor and the control electrode of the silicon controlled rectifier, the other end of the fifth resistor is grounded, the positive electrode of the silicon controlled rectifier is connected with the output end of the direct current power supply module, the negative electrode of the silicon controlled rectifier is connected with the positive electrode of the sixth diode, the negative electrode of the sixth diode is connected with one end of the relay and the negative electrode of the seventh diode, the other end of the relay is grounded, and the positive electrode of the seventh diode is grounded.
As still further aspects of the invention: the grounding pressure relief module comprises a third switch and a fourth switch, one end of the third switch is connected with the generator set, the other end of the third switch is grounded, one end of the fourth switch is connected with a load, and the other end of the fourth switch is grounded.
Compared with the prior art, the invention has the beneficial effects that: when detecting that a person or a pet reaches a dangerous area of a generator set, the first distance alarm module gives an audible and visual alarm prompt; when a person or a pet further approaches the generator set, the second distance power-off module turns off the switch of the generator set and the load, and the generator set and the load stop working to protect the approaching person or pet; in addition, when the second distance outage module works, the grounding pressure relief module is triggered to work, electric energy stored in the outage generator set and the capacitive devices in the load is discharged, and when people or pets touch the generator set, the shell of the generator set is ensured to be electroless.
Drawings
Fig. 1 is a schematic diagram of a generator set power generation emergency protection circuit.
Fig. 2 is a circuit diagram of an ac power module and a dc power module.
Fig. 3 is a circuit diagram of an infrared detection module, a first distance alarm module, and a second distance power-off module.
Fig. 4 is a circuit diagram of a ground pressure relief module.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.
Referring to fig. 1, an emergency protection circuit for generating set includes:
the alternating current power supply module 1 is used for converting alternating current into direct current and outputting the direct current to the direct current power supply module 2, the infrared detection module 3, the first distance alarm module 4 and the second distance power-off module 5;
the direct current power supply module 2 is used for supplying power to the infrared detection module 3, the first distance alarm module 4 and the second distance power-off module 5 after the alternating current power supply module 1 is powered off;
the infrared detection module 3 is used for detecting whether a protection object (namely a person or a pet) approaches the generator set or not through the infrared distance sensor X, and outputting different voltages according to different distances;
the first distance alarm module 4 is used for emitting light to sound to prompt a person or a pet when the person or the pet reaches a first distance from the generator set;
the second distance power-off module 5 is used for switching off the switch of the generator set and the load when the person or the pet reaches a second distance from the generator set;
the grounding pressure relief module 6 is used for grounding the generator set and the load when the person or the pet is at a second distance from the generator set, and discharging the voltage on the capacitive devices in the generator set and the load;
the output end of the alternating current power supply module 1 is connected with the input end of the direct current power supply module 2, the output end of the direct current power supply module 2 is connected with the input end of the infrared detection module 3, the first input end of the first distance alarm module 4 and the first input end of the second distance power-off module 5, the first output end of the infrared detection module 3 is connected with the second input end of the first distance alarm module 4, the second output end of the infrared detection module 3 is connected with the second input end of the second distance power-off module 5, and the output end of the second distance power-off module 5 is connected with the input end of the grounding pressure relief module 6.
In this embodiment: referring to fig. 2, the ac power supply module 1 includes a transformer W, a rectifier T, a first capacitor C1, a second capacitor C2, a first inductor L1, a first resistor R1, and a first diode D1, wherein an input end of the transformer W introduces 220V ac power, one end of an output end of the transformer W is connected to an M1 end of the rectifier T, another end of the output end of the transformer W is connected to an M3 end of the rectifier T, an M2 end of the rectifier T is grounded, an M4 end of the rectifier T is connected to one end of the first capacitor C1, one end of the first inductor L1 is grounded, another end of the first capacitor L1 is connected to one end of the second capacitor C2, one end of the first resistor R1 is grounded, another end of the first resistor R1 is connected to an anode of the first diode D1, and a cathode of the first diode D1 is connected to an input end of the dc power supply module 2.
As a part of the load, 220V ac is supplied from the generator set, ac voltage reduction is completed through the transformer W, ac is changed into dc through the rectifier T, and a filter circuit formed by the first capacitor C1, the first inductor L1 and the second capacitor C2 is changed into smooth dc.
In another embodiment, 220V ac power may also be supplied directly from mains voltage.
In this embodiment: referring to fig. 2, the dc power supply module 2 includes a battery E1 and a second diode D2, wherein a positive electrode of the battery E1 is connected to a negative electrode of the second diode D2, an input end of the infrared detection module 3, a first input end of the first distance alarm module 4, and a first input end of the second distance power-off module 5, a negative electrode of the battery E1 is grounded, and a positive electrode of the second diode D2 is grounded.
In a normal state, the alternating current power supply module 1 is clamped by the battery E1 and the second diode D2 to supply power to the post-stage circuit, and after the alternating current power supply module 1 is powered off, the battery E1 outputs direct current and the second diode D2 is clamped to output the direct current to the post-stage circuit.
In another embodiment: the dc power supply module 2 may be provided alone without providing the ac power supply module 1, so that the battery E1 will need to be replaced at intervals.
In this embodiment: referring to fig. 3, the infrared detection module 3 includes an infrared distance sensor X, a second resistor R2, a first potentiometer RP1, and a second potentiometer RP2, where a power end of the infrared distance sensor X is connected to an output end of the dc power supply module 2, a ground of the infrared distance sensor X is grounded, an output end of the infrared distance sensor X is connected to one end of the second resistor R2, another end of the second resistor R2 is connected to one end of the first potentiometer RP1 and a second input end of the first distance alarm module 4, another end of the first potentiometer RP1 is connected to a second input end of the second distance power off module 5 and one end of the second potentiometer RP2, and another end of the second potentiometer RP2 is grounded.
The infrared distance sensor X detects whether a person or an animal exists nearby, the closer the distance between the person or the animal is, the larger the output voltage is, when the resistance values of the first potentiometer RP1 and the second potentiometer RP2 reach a preset first distance, the enough voltage is output to the first distance alarm module 4 to drive the module to work; when the preset second distance is reached, the voltage output to the second distance power-off module 5 is enough to drive the module to work.
In another embodiment: the first potentiometer RP1 and the second potentiometer RP2 can be changed into common resistors, so that the first distance and the second distance cannot be adjusted.
In this embodiment: referring to fig. 3, the first distance alarm module 4 includes a third diode D3, a third resistor R3, a first MOS tube V1, a fourth diode D4, and a SPEAKER peak, where a cathode of the third diode D3 is connected to a first output end of the infrared detection module 3, an anode of the third diode D3 is connected to one end of the third resistor R3, a G pole of the first MOS tube V1, another end of the third resistor R3 is grounded, a D pole of the first MOS tube V1 is connected to an output end of the dc power supply module 2, an S pole of the first MOS tube V1 is connected to an anode of the fourth diode D4, a cathode of the fourth diode D4 is connected to one end of the SPEAKER peak, and another end of the SPEAKER peak is grounded.
When the person or animal reaches the first distance, the voltage output to the third diode D3 (zener diode) is enough to break down the third diode D3, so that the first MOS transistor V1 is turned on, the fourth diode D4 emits light to indicate, and the SPEAKER peak sounds to warn to prompt the person or animal to get away from the generator set.
In another embodiment: a voice chip may be used instead of the SPEAKER.
In this embodiment: referring to fig. 3 and 4, the second distance power-off module 5 includes a fourth resistor R4, a fifth diode D5, a fifth resistor R5, a silicon controlled rectifier Z1, a sixth diode D6, a relay J1, and a seventh diode D7, one end of the fourth resistor R4 is connected to the second output end of the infrared detection module 3, the other end of the fourth resistor R4 is connected to the negative electrode of the fifth diode D5, the positive electrode of the fifth diode D5 is connected to one end of the fifth resistor R5, the control electrode of the silicon controlled rectifier Z1, the other end of the fifth resistor R5 is grounded, the positive electrode of the silicon controlled rectifier Z1 is connected to the output end of the dc power supply module 2, the negative electrode of the silicon controlled rectifier Z1 is connected to the positive electrode of the sixth diode D6, the negative electrode of the sixth diode D6 is connected to one end of the relay J1, the negative electrode of the seventh diode D7, the other end of the relay J1 is grounded, and the positive electrode of the seventh diode D7 is grounded.
When a person or animal approaches the generator set after the warning of the first distance alarm module 4, and the distance approaches to the second distance, the voltage output to the fifth diode D5 (the voltage stabilizing diode) through the fourth resistor R4 is enough to break down the fifth diode D5, trigger voltage is provided for the silicon controlled rectifier Z1, the silicon controlled rectifier Z1 is conducted, the relay J1 is powered on to work, the first switch S1 and the second switch S2 are controlled to be disconnected (namely corresponding generator set switch and load switch), the generator set and the load stop working, and then danger cannot be caused when the person or animal touches the generator set.
In another embodiment: the controllable silicon Z1 can be replaced by a switch tube, the controllable silicon Z1 is selected, the generator set stops working after triggering, parents can know that a child or a pet arrives at the generator set in a short distance, and the generator set can work again to supply power only by restarting the emergency protection circuit for generating power by the motor set.
In this embodiment: referring to fig. 4, the grounding pressure relief module 6 includes a third switch S3 and a fourth switch S4, one end of the third switch S3 is connected to the generator set, the other end of the third switch S3 is grounded, one end of the fourth switch S4 is connected to the load, and the other end of the fourth switch S4 is grounded.
When the first relay J1 works, the third switch S3 and the fourth switch S4 are controlled to be closed at the same time, and the voltage stored by the capacitive devices on the generator set and the load is discharged, so that no voltage is generated on the generator set when a child or a pet contacts the generator set in a short distance, and the safety is further ensured.
In another embodiment: here, the third switch S3 and the fourth switch S4 are controlled by the first relay J1, and may be controlled by other relays, which are controlled separately from the first switch S1 and the second switch S2.
The working principle of the invention is as follows: the alternating current power supply module 1 is used for converting alternating current into direct current and outputting the direct current to the direct current power supply module 2, the infrared detection module 3, the first distance alarm module 4 and the second distance power-off module 5; the direct current power supply module 2 is used for supplying power to the infrared detection module 3, the first distance alarm module 4 and the second distance power-off module 5 after the alternating current power supply module 1 is powered off; the infrared detection module 3 is used for detecting whether a person or a pet approaches the generator set or not through the infrared distance sensor X, and outputting different voltages according to different distances; the first distance alarm module 4 is used for emitting light to sound to prompt a person or a pet when the person or the pet reaches a first distance from the generator set; the second distance power-off module 5 is used for switching off the switch of the generator set and the load when the person or the pet reaches a second distance from the generator set; the grounding pressure release module 6 is used for grounding the generator set and the load when the person or the pet is at a second distance from the generator set, and releasing the voltage on the capacitive devices in the generator set and the load.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (5)

1. An emergency protection circuit for generating set power generation, comprising:
the alternating current power supply module is used for converting alternating current into direct current and outputting the direct current to the direct current power supply module, the infrared detection module, the first distance alarm module and the second distance power-off module;
the direct current power supply module is used for supplying power to the infrared detection module, the first distance alarm module and the second distance power-off module after the alternating current power supply module is powered off;
the emergency protection circuit for the generator set power generation is characterized by further comprising:
the infrared detection module is used for detecting whether a protection object approaches to the generator set or not through an infrared distance sensor and outputting different voltages according to different distances;
the first distance alarm module is used for emitting light to sound to prompt a person or a pet when the person or the pet reaches a first distance from the generator set;
the second distance power-off module is used for switching off the switch of the generator set and the load when the person or the pet reaches a second distance from the generator set;
the grounding pressure relief module is used for grounding the generator set and the load when a person or a pet gets a second distance from the generator set, and discharging the voltage on the capacitive devices in the generator set and the load;
the output end of the alternating current power supply module is connected with the input end of the direct current power supply module, the output end of the direct current power supply module is connected with the input end of the infrared detection module, the first input end of the first distance alarm module and the first input end of the second distance power-off module, the first output end of the infrared detection module is connected with the second input end of the first distance alarm module, the second output end of the infrared detection module is connected with the second input end of the second distance power-off module, and the output end of the second distance power-off module is connected with the input end of the grounding pressure relief module;
the second distance power-off module comprises a fourth resistor, a fifth diode, a fifth resistor, a silicon controlled rectifier, a sixth diode, a relay and a seventh diode, one end of the fourth resistor is connected with the second output end of the infrared detection module, the other end of the fourth resistor is connected with the negative electrode of the fifth diode, the positive electrode of the fifth diode is connected with one end of the fifth resistor and the control electrode of the silicon controlled rectifier, the other end of the fifth resistor is grounded, the positive electrode of the silicon controlled rectifier is connected with the output end of the direct current power supply module, the negative electrode of the silicon controlled rectifier is connected with the positive electrode of the sixth diode, the negative electrode of the sixth diode is connected with one end of the relay and the negative electrode of the seventh diode, the other end of the relay is grounded, and the positive electrode of the seventh diode is grounded;
the grounding pressure relief module comprises a third switch and a fourth switch, one end of the third switch is connected with the generator set, the other end of the third switch is grounded, one end of the fourth switch is connected with a load, and the other end of the fourth switch is grounded.
2. The emergency protection circuit for generating set power according to claim 1, wherein the ac power supply module comprises a transformer, a rectifier, a first capacitor, a second capacitor, a first inductor, a first resistor and a first diode, wherein 220V ac is introduced into an input end of the transformer, one end of an output end of the transformer is connected with an M1 end of the rectifier, the other end of the output end of the transformer is connected with an M3 end of the rectifier, an M2 end of the rectifier is grounded, an M4 end of the rectifier is connected with one end of the first capacitor and one end of the first inductor, the other end of the first capacitor is grounded, the other end of the first inductor is connected with one end of the second capacitor and one end of the first resistor, the other end of the second capacitor is grounded, the other end of the first resistor is connected with an anode of the first diode, and a cathode of the first diode is connected with an input end of the dc power supply module.
3. The emergency power generation protection circuit of the generator set according to claim 1, wherein the direct current power supply module comprises a battery and a second diode, the anode of the battery is connected with the cathode of the second diode, the input end of the infrared detection module, the first input end of the first distance alarm module and the first input end of the second distance power-off module, the cathode of the battery is grounded, and the anode of the second diode is grounded.
4. The emergency protection circuit for generating set power generation according to claim 1, wherein the infrared detection module comprises an infrared distance sensor, a second resistor, a first potentiometer and a second potentiometer, a power end of the infrared distance sensor is connected with an output end of the direct current power supply module, a grounding end of the infrared distance sensor is grounded, an output end of the infrared distance sensor is connected with one end of the second resistor, the other end of the second resistor is connected with one end of the first potentiometer and a second input end of the first distance alarm module, the other end of the first potentiometer is connected with a second input end of the second distance power-off module and one end of the second potentiometer, and the other end of the second potentiometer is grounded.
5. The emergency protection circuit for generating set power generation according to claim 1, wherein the first distance alarm module comprises a third diode, a third resistor, a first MOS tube, a fourth diode and a loudspeaker, wherein the negative electrode of the third diode is connected with the first output end of the infrared detection module, the positive electrode of the third diode is connected with one end of the third resistor, the G electrode of the first MOS tube, the other end of the third resistor is grounded, the D electrode of the first MOS tube is connected with the output end of the direct current power supply module, the S electrode of the first MOS tube is connected with the positive electrode of the fourth diode, the negative electrode of the fourth diode is connected with one end of the loudspeaker, and the other end of the loudspeaker is grounded.
CN202311317731.4A 2023-10-12 2023-10-12 Generating set electricity generation emergency protection circuit Active CN117060335B (en)

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CN110907943A (en) * 2019-12-31 2020-03-24 成都煜明装饰工程有限公司 Infrared distance measurement automatic analyzer and data analysis method
CN213458398U (en) * 2020-09-16 2021-06-15 国网青海省电力公司海西供电公司 Alarm device and power equipment maintenance system
CN214847019U (en) * 2021-04-26 2021-11-23 国网江苏省电力有限公司常州供电分公司 Be arranged in transformer substation equipment work safety to remind auxiliary device
CN114900513A (en) * 2022-04-24 2022-08-12 浙江工业大学 Remote pet safety warning system
CN218647498U (en) * 2022-10-26 2023-03-17 东莞市楷晨电子商务有限公司 Safety protector for electric appliance

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