CN210518136U - Power supply with smoke alarm function - Google Patents
Power supply with smoke alarm function Download PDFInfo
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- CN210518136U CN210518136U CN201922044881.8U CN201922044881U CN210518136U CN 210518136 U CN210518136 U CN 210518136U CN 201922044881 U CN201922044881 U CN 201922044881U CN 210518136 U CN210518136 U CN 210518136U
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Abstract
The utility model relates to a power technical field, concretely relates to take smog alarming function's power. The transformer T comprises an input circuit, an input rectifying circuit, a transformer T and a circuit output end which are connected in sequence; the input energy storage filter circuit is connected between the input rectifying circuit and a primary winding of the transformer T in series; the circuit output includes: the transformer T comprises an output energy storage filter circuit, a transformer T secondary winding and an output rectifying circuit, wherein the input end of the output energy storage filter circuit is connected with the transformer T secondary winding; the input end of the smoke alarm circuit is electrically connected with the input rectifying circuit; the input end of the MOS tube is connected with a primary winding of the transformer T; the output end of the master control circuit is connected with the control end of the MOS tube and controls the on-off of the MOS tube; the primary winding of the transformer T, the MOS tube and the main control circuit form a main control end; the utility model discloses a fuse the smoke alarm circuit in the relevant circuit of power, install the emergence that bee calling organ isotructure can effectual early warning conflagration in advance additional at the smoke alarm circuit.
Description
Technical Field
The utility model relates to a power technical field, concretely relates to take smog alarming function's power.
Background
Industrial automation control, military industry equipment, scientific research equipment, LED illumination, industrial control equipment, communications facilities, power equipment, instrument and meter, medical equipment, semiconductor refrigeration and heating, air purifier, electronic refrigerator, LCD, LED lamps and lanterns, communications facilities, seeing and hearing product, security protection, computer machine case, various fields such as digital product and instrument all need use the power, and current power is suitable in the market, and current power has the following problem:
the power supply has only a power supply function, and has single function and low added value. Along with the arrival of the internet of things era, people enjoy the convenience brought by high technology, various potential safety hazards are increased gradually, the method has practical significance for preventing family fires and reducing fire loss, in modern urban families, the smoke alarm can be effectively installed to early warn the occurrence of fires in advance, but at present, most families cannot independently install a smoke alarm, the reason is that the smoke alarm needs to be purchased independently and installed in a proper place, a power supply can be provided in common families, most common are various power supply adapters, research shows that the power supply adapters cannot be pulled out after the use of electric equipment, most of the smoke alarm can be left in a socket, if the smoke alarm function can be added into the power supply of people, a simple smoke early warning system can be popularized, and the occurrence of fires can be early warned.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a power supply with a smoke alarm function.
The purpose of the utility model is realized through the following technical scheme:
a power supply with a smoke alarm function comprises an input circuit, an input rectifying circuit, a transformer T and a circuit output end which are connected in sequence; the power supply with the smoke alarm function further comprises:
the input energy storage filter circuit is connected between the input rectifying circuit and a primary winding of the transformer T in series;
the circuit output includes: the transformer T comprises an output energy storage filter circuit, a transformer T secondary winding and an output rectifying circuit, wherein the input end of the output energy storage filter circuit is connected with the transformer T secondary winding;
the input end of the smoke alarm circuit is electrically connected with the input rectifying circuit;
the input end of the MOS tube is connected with a primary winding of the transformer T;
the output end of the master control circuit is connected with the control end of the MOS tube and controls the on-off of the MOS tube; the primary winding of the transformer T, the MOS tube and the main control circuit form a main control end;
the smoke alarm circuit comprises: a resistor R1, a light emitting diode D1, a phototransistor Q1, a transistor Q1, a capacitor C1, a potentiometer RP1 and an alarm B1, wherein an output terminal of the input rectifying circuit is electrically connected to an input terminal of the light emitting diode D1, one terminal of the resistor R1 and one terminal of the resistor R1, an output terminal of the light emitting diode D1 is electrically connected to a sliding terminal of the potentiometer RP1 and a collector of the phototransistor Q1, an emitter of the phototransistor Q1 is electrically connected to an input terminal of the diode D1 and one terminal of the resistor R1, the other terminal of the resistor R1 is electrically connected to one terminal of the capacitor C1, a fixed terminal of the potentiometer R1, one terminal of the resistor R1 and the output terminal of the alarm B1, and the other terminal of the capacitor D1 is electrically connected to ground, and the other terminal of the capacitor D1 is electrically connected to the output terminal, The base of triode Q2 electric connection, the other end of resistance R1 and one end electric connection of resistance R2, the other end of resistance R2 is connected with triode Q2's collecting electrode electric property, resistance R7's one end respectively, the other end of resistance R4 respectively with resistance R5's one end triode Q3's collecting electrode electric connection, resistance R5's other end ground connection, resistance R7's the other end respectively with resistance R8's the other end, resistance R6's one end electric connection, resistance R6's the other end and triode Q3's base electric connection, triode Q3's projecting pole and alarm B1's input electric connection.
Specifically, the alarm B1 is a buzzer.
Specifically, the output energy storage filter circuit is provided with a capacitor or a battery capable of charging energy storage.
Specifically, the feedback circuit is electrically connected with the input end, the output energy storage filter circuit and the input energy storage filter circuit.
Compared with the prior art, the utility model following advantage and beneficial effect are included: the utility model discloses a fuse the smoke alarm circuit in the relevant circuit of power, install bee calling organ isotructure additional at the smoke alarm circuit and can effectually early warning conflagration emergence in advance, this smoke alarm function does not need independent power supply, can effectively rely on the power commonly used in the family above, effectively improve the use value of power and smoke alarm's installation space, improve indoor space utilization.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural diagram of the smoke alarm circuit of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
As shown in fig. 1 to 2, a power supply with a smoke alarm function includes an input circuit, an input rectification circuit, a transformer T, and a circuit output end, which are connected in sequence; the power supply with the smoke alarm function further comprises:
the input energy storage filter circuit is connected between the input rectifying circuit and a primary winding of the transformer T in series;
the circuit output includes: the transformer T comprises an output energy storage filter circuit, a transformer T secondary winding and an output rectifying circuit, wherein the input end of the output energy storage filter circuit is connected with the transformer T secondary winding; the input rectifying circuit and the input energy storage filter circuit carry out filtering, rectification and energy storage filtering on input alternating current, then the input alternating current is transmitted to the transformer T, and after the voltage of the transformer T is changed, the input alternating current is rectified and energy storage filtered by the output rectifying circuit and the output energy storage filter circuit and then is output to a load; the energy storage filter circuit is internally provided with an energy storage element which can be used as a power supply of the smoke alarm circuit in a short period after power failure, an air switch in the front chamber can automatically trip when power leakage occurs, but the hidden fire hazard still exists, and the energy storage element can provide power supply in the most dangerous short period after power failure.
The input end of the smoke alarm circuit is electrically connected with the input rectifying circuit; the smoke alarm circuit can realize the smoke alarm function; the transformer T is a low-frequency transformer T;
the input end of the MOS tube is connected with a primary winding of the transformer T; the MOS tube is switched on and off, so that the primary winding of the transformer T continuously stores and releases energy to work;
the output end of the master control circuit is connected with the control end of the MOS tube and controls the on-off of the MOS tube; the primary winding of the transformer T, the MOS tube and the main control circuit form a main control end;
the smoke alarm circuit comprises: a resistor R1, a light emitting diode D1, a phototransistor Q1, a transistor Q1, a capacitor C1, a potentiometer RP1 and an alarm B1, wherein an output terminal of the input rectifying circuit is electrically connected to an input terminal of the light emitting diode D1, one terminal of the resistor R1 and one terminal of the resistor R1, an output terminal of the light emitting diode D1 is electrically connected to a sliding terminal of the potentiometer RP1 and a collector of the phototransistor Q1, an emitter of the phototransistor Q1 is electrically connected to an input terminal of the diode D1 and one terminal of the resistor R1, the other terminal of the resistor R1 is electrically connected to one terminal of the capacitor C1, a fixed terminal of the potentiometer R1, one terminal of the resistor R1 and the output terminal of the alarm B1, and the other terminal of the capacitor D1 is electrically connected to ground, and the other terminal of the capacitor D1 is electrically connected to the output terminal, The base of triode Q2 electric connection, the other end of resistance R1 and one end electric connection of resistance R2, the other end of resistance R2 respectively with triode Q2's collecting electrode, resistance R7's one end electric connection, the other end of resistance R4 respectively with resistance R5's one end triode Q3's collecting electrode electric connection, resistance R5's other end ground connection, resistance R7's the other end respectively with resistance R8's the other end, resistance R6's one end electric connection, resistance R6's the other end and triode Q3's base electric connection, triode Q3's projecting pole and alarm B1's input electric connection.
Specifically, the alarm B1 is a buzzer.
Specifically, the output energy storage filter circuit is provided with a capacitor or a battery capable of charging energy storage.
The input end of the feedback circuit is electrically connected with the output energy storage filter circuit and the input energy storage filter circuit; the feedback circuit is used for detecting the working states of the input energy storage filter circuit and the output energy storage filter circuit.
The utility model discloses a concrete implementation process as follows: the input rectifier circuit supplies power to the smoke alarm circuit, when no smoke exists indoors, the light emitting diode D1 is adjusted to normally emit light, the internal resistance of the phototriode Q1 is reduced after illumination is received by the phototriode Q1, the circuit in the series circuit of the light emitting diode D1 and the phototriode Q1 is increased, the light emitting diode D1 is continuously increased, the internal resistance of the phototriode Q1 is further reduced, the current value in the series photosensitive circuit is circulated in a reciprocating mode to be the maximum, voltage drop is generated in the resistor R3, the triode Q2 is conducted through the diode D2, the base of the triode Q3 is not electrified, the triode Q3 is cut off, and the alarm B1 does not work; when the environmental smoke is increased, the light transmittance in the air is deteriorated, at the moment, the light quantity received by the phototriode Q1 is reduced, the internal resistance is increased, the circuit in the series photosensitive circuit is also reduced, the luminous intensity of the light-emitting diode D1 is also reduced, the light-emitting diode D1 circulates in a reciprocating mode, the current in the series photosensitive circuit is reduced to the initial current value, the voltage on the resistor R1 is reduced to 1.2V, the triode Q2 is cut off, the base electrode of the triode Q3 is electrified, the triode Q3 is conducted, and the alarm B1 is electrified to work.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (4)
1. A power supply with a smoke alarm function comprises an input circuit, an input rectifying circuit, a transformer T and a circuit output end which are connected in sequence; the method is characterized in that: the power supply with the smoke alarm function further comprises:
the input energy storage filter circuit is connected between the input rectifying circuit and a primary winding of the transformer T in series;
the circuit output includes: the transformer T comprises an output energy storage filter circuit, a transformer T secondary winding and an output rectifying circuit, wherein the input end of the output energy storage filter circuit is connected with the transformer T secondary winding;
the input end of the smoke alarm circuit is electrically connected with the input rectifying circuit;
the input end of the MOS tube is connected with a primary winding of the transformer T;
the output end of the master control circuit is connected with the control end of the MOS tube and controls the on-off of the MOS tube; the primary winding of the transformer T, the MOS tube and the main control circuit form a main control end;
the smoke alarm circuit comprises: a resistor R1, a light emitting diode D1, a phototransistor Q1, a transistor Q1, a capacitor C1, a potentiometer RP1 and an alarm B1, wherein an output terminal of the input rectifying circuit is electrically connected to an input terminal of the light emitting diode D1, one terminal of the resistor R1 and one terminal of the resistor R1, an output terminal of the light emitting diode D1 is electrically connected to a sliding terminal of the potentiometer RP1 and a collector of the phototransistor Q1, an emitter of the phototransistor Q1 is electrically connected to an input terminal of the diode D1 and one terminal of the resistor R1, the other terminal of the resistor R1 is electrically connected to one terminal of the capacitor C1, a fixed terminal of the potentiometer R1, one terminal of the resistor R1 and the output terminal of the alarm B1, and the other terminal of the capacitor D1 is electrically connected to ground, and the other terminal of the capacitor D1 is electrically connected to the output terminal, The base of triode Q2 electric connection, the other end of resistance R1 and one end electric connection of resistance R2, the other end of resistance R2 respectively with triode Q2's collecting electrode, resistance R7's one end electric connection, the other end of resistance R4 respectively with resistance R5's one end triode Q3's collecting electrode electric connection, resistance R5's other end ground connection, resistance R7's the other end respectively with resistance R8's the other end, resistance R6's one end electric connection, resistance R6's the other end and triode Q3's base electric connection, triode Q3's projecting pole and alarm B1's input electric connection.
2. The power supply with the smoke alarm function as claimed in claim 1, wherein: the alarm B1 is a buzzer.
3. The power supply with the smoke alarm function as claimed in claim 1, wherein: the output energy storage filter circuit is provided with a rechargeable energy storage capacitor or a rechargeable battery.
4. The power supply with the smoke alarm function as claimed in claim 1, wherein: the feedback circuit is electrically connected with the input end, the output energy storage filter circuit and the input energy storage filter circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044881.8U CN210518136U (en) | 2019-11-25 | 2019-11-25 | Power supply with smoke alarm function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922044881.8U CN210518136U (en) | 2019-11-25 | 2019-11-25 | Power supply with smoke alarm function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210518136U true CN210518136U (en) | 2020-05-12 |
Family
ID=70575018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922044881.8U Active CN210518136U (en) | 2019-11-25 | 2019-11-25 | Power supply with smoke alarm function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210518136U (en) |
-
2019
- 2019-11-25 CN CN201922044881.8U patent/CN210518136U/en active Active
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