CN203870782U - Energy-saving type electric leakage fire hazard detector detection device - Google Patents
Energy-saving type electric leakage fire hazard detector detection device Download PDFInfo
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- CN203870782U CN203870782U CN201420290301.8U CN201420290301U CN203870782U CN 203870782 U CN203870782 U CN 203870782U CN 201420290301 U CN201420290301 U CN 201420290301U CN 203870782 U CN203870782 U CN 203870782U
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Abstract
The objective of the utility model is to generate high alternating current test current by low power supply direct current. The utility model provides an energy-saving type electric leakage fire hazard detector detection device comprising a power supply (1), an oscillation circuit (2), a current amplification circuit (3) and a power amplifier output circuit (4). The detection device is characterized in that the power amplifier output circuit (4) is connected with a current-boosting circuit (5) which is connected with the power supply (1). Low direct current of a power supply battery can be transformed into test-used high alternating current by the detection device so that test effect can be effectively enhanced, and battery energy can be saved.
Description
Described technical field:
The utility model relates to a kind of pick-up unit of energy-saving type leaky fire detector, is mainly used in architectural electricity engineering detecting industry.
Background technology:
In this year, traditional device that leaky fire detector is detected, because power consumption is larger, so serviceable life is limited, needs often to change battery.
Technology contents:
The purpose of this utility model is: with a little power supply direct current, produce a large alternating-current measurement electric current.A kind of pick-up unit of energy-saving type leaky fire detector, it comprises: power supply (1), oscillatory circuit (2), current amplification circuit (3), power amplifier output circuit (4), it is characterized in that: power amplifier output circuit (4) is connected with up-flow circuit (5), up-flow circuit (5) is connected with power supply (1).Power supply (1) is supplied with oscillatory circuit (2) by direct current, produce an analog sine alternating current wave, deliver to current amplification circuit (3), current signal is amplified, in order to meet the requirement to different leakage fire alarming detector simulation leakage currents, be unlikely to again, because current signal amplifies, power supply (1) is produced to infringement, thereby, the current signal again amplifying circuit (3) being amplified is delivered to power amplifier output circuit (4), guarantees that this device can produce meet different leakage fire alarming detectors to simulating the requirement of leakage current through the regulating action of power amplifier output circuit.The large electric current of test that transformer in up-flow circuit (5) is secondary side by the little current transformation of primary side.
Thereby the utility model can be transformed to the little direct current of power-supply battery the large alternating current of test use improves test effect effectively, saves battery power.
Such scheme can be perfect like this: in up-flow circuit (5), one of adjustable potentiometer (6) input end is connected with electrochemical capacitor (7) negative pole, two and rising current transformer (8) the primary side other end of adjustable potentiometer (6) input end, power supply (1) negative pole, triode (9) emitter that electric current amplifies connects, adjustable potentiometer (6) mobile terminal is connected with rising current transformer (8) primary side one end, rising current transformer (8) secondary side one end is connected with reometer (10) is anodal, reometer (10) negative pole is connected with test wrapper (11) one end, rising current transformer (8) the secondary side other end is connected with test wrapper (11) other end.The little DC current of power supply (1) is converted to alternating current entering up-flow circuit (5) each circuit before, while passing through on this basis up-flow circuit (5), by adjustable potentiometer (6) mobile terminal, regulate the input voltage of the rising current transformer (8) of up-flow circuit (5), thereby cause the secondary side of rising current transformer (8) to produce corresponding change in voltage, cause producing large alternating-current measurement electric current at secondary side.Series current table (10) in the circuit of secondary side, then ring forms (11) current return after tested.During test, test wrapper (11) two ends latch closure is formed to current return in tested device, just can reach test purpose.
Accompanying drawing explanation:
1, a kind of functional-block diagram of the present utility model.
2, a kind of circuit structure diagram of the present utility model.
Embodiment:
Embodiment 1
See Fig. 1, power supply (1) is connected with oscillatory circuit (2), oscillatory circuit (2) is connected with current amplification circuit (3), current amplification circuit (3) is connected with power amplifier output circuit (4), power amplifier output circuit (4) is connected with up-flow circuit (5), and up-flow circuit (5) is connected with power supply (1).Below physical circuit figure:
See Fig. 2, the integrated package (12) that oscillatory circuit (2) is 4093 by model, vibration inductance (13), electrochemical capacitor (14) forms, oscillatory circuit (2) produces 50Hz sine wave alternating current, model be 4093 integrated package (12) the 3rd output terminal pin (A) with its 5th, the 6th output terminal pin (B, C) connect, and its line is connected with one end of vibration inductance (13), the base stage of the triode (15) that integrated package (12) the second input end pin (D) that the other end of vibration inductance (13) is 4093 with model and electric current amplify is connected, integrated package (12) the second input end pin (D) that the positive pole of electrochemical capacitor (14) is 4093 with model are connected, the negative pole of electrochemical capacitor (14) is connected with power supply (1) negative pole, integrated package (12) the first input end pin (E) that power supply (1) positive pole is 4093 with model is connected.Triode (15), resistance (16) that current amplification circuit (3) is amplified by electric current form, the emitter of triode (15) that electric current amplifies and one end of the positive pole of electrochemical capacitor (17) and resistance (16) are connected, the other end of resistance (16) is connected with power supply (1) negative pole, the collector of the triode (15) that electric current amplifies is connected with power supply (1), and power supply (1) is 12V direct supply.Power amplifier output circuit (4) is by electrochemical capacitor (17), adjustable resistance (18), the triode (19) that electric current amplifies, the triode (20) that electric current amplifies, resistance (21), diode (22), diode (23), resistance (24), the triode (25) that electric current amplifies, resistance (26), resistance (27), the triode (9) that electric current amplifies, electrochemical capacitor (7) forms, the collector of triode (15) and one end of adjustable resistance (18) that electric current amplifies, the collector of the triode (19) that electric current amplifies, the collector of the triode (20) that electric current amplifies connects, the other end of adjustable resistance (18) is connected with one end of resistance (21), the other end of resistance (21) is connected with one end of diode (22), the other end of diode (22) is connected with one end of diode (23), the other end of diode (23) is connected with the base stage of the triode (25) that one end and the electric current of resistance (24) amplify, the other end of resistance (24) is connected with power supply (1) negative pole, the negative pole of electrochemical capacitor (17) is connected with the base stage of the triode (19) that electric current amplifies, the base stage of the triode (20) that the emitter of triode (19) that electric current amplifies and one end of resistance (26) and electric current amplify is connected, the other end of resistance (26) is connected with the emitter of the triode (25) that electric current amplifies, the base stage of the triode (9) that the collector of triode (25) that electric current amplifies and one end of resistance (27) and electric current amplify is connected, the other end of resistance (27) is connected with power supply (1) negative pole, the emitter of the triode (20) that electric current amplifies is connected with the collector of the triode (9) that electric current amplifies, the emitter of the triode (9) that electric current amplifies is connected with power supply (1) negative pole.The positive pole of electrochemical capacitor (7) is connected with the emitter of the triode (25) that electric current amplifies.Up-flow circuit (5) is by adjustable potentiometer (6), rising current transformer (8), reometer (10), test wrapper (11) forms, one of adjustable potentiometer (6) input end is connected with electrochemical capacitor (7) negative pole, two and rising current transformer (8) the primary side other end of adjustable potentiometer (6) input end, power supply (1) negative pole, triode (9) emitter that electric current amplifies connects, adjustable potentiometer (6) mobile terminal is connected with rising current transformer (8) primary side one end, rising current transformer (8) secondary side one end is connected with reometer (10) is anodal, reometer (10) negative pole is connected with test wrapper (11) one end, rising current transformer (8) the secondary side other end is connected with test wrapper (11) other end.In when test, test wrapper (11) is enclosed within on annular mutual inductor, then, adjustable potentiometer (6) makes output current reach the setting alarming value of leaky fire detector, if equipment alarm is normal, otherwise, undesired.
Said elements parameter is as follows:
Power supply (1): DC12V
Integrated package (12) model: 4093
Vibration inductance (13): 4H
Triode (15) model that electric current amplifies: 8050
Electrochemical capacitor (14): 1 μ F
Electrochemical capacitor (17): 1000 μ F
Resistance (16): 1.8K Ω
Adjustable resistance (18): 0～50K Ω
Triode (19) model that electric current amplifies: 8050
Triode (20) model: the 2SC5200 that electric current amplifies
Resistance (21): 55 Ω
Diode (22) model: 4148
Diode (23) model: 4148
Resistance (24): 10K Ω
Triode (25) model that electric current amplifies: 8550
Resistance (26): 180 Ω
Resistance (27): 175 Ω
Triode (9) model: the 2SC5200 that electric current amplifies
Electrochemical capacitor (7): 4700 μ F
Resistance (24): 2 Ω
Adjustable resistance (25): 0～30 Ω
Claims (2)
1. the pick-up unit of an energy-saving type leaky fire detector, it comprises: power supply (1), oscillatory circuit (2), current amplification circuit (3), power amplifier output circuit (4), it is characterized in that: power amplifier output circuit (4) is connected with up-flow circuit (5), up-flow circuit (5) is connected with power supply (1).
2. the pick-up unit of a kind of energy-saving type leaky fire detector according to claim 1, it is characterized in that: in up-flow circuit (5), one of adjustable potentiometer (6) input end is connected with electrochemical capacitor (7) negative pole, two and rising current transformer (8) the primary side other end of adjustable potentiometer (6) input end, power supply (1) negative pole, triode (9) emitter that electric current amplifies connects, adjustable potentiometer (6) mobile terminal is connected with rising current transformer (8) primary side one end, rising current transformer (8) secondary side one end is connected with reometer (10) is anodal, reometer (10) negative pole is connected with test wrapper (11) one end, rising current transformer (8) the secondary side other end is connected with test wrapper (11) other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290301.8U CN203870782U (en) | 2014-05-30 | 2014-05-30 | Energy-saving type electric leakage fire hazard detector detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420290301.8U CN203870782U (en) | 2014-05-30 | 2014-05-30 | Energy-saving type electric leakage fire hazard detector detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203870782U true CN203870782U (en) | 2014-10-08 |
Family
ID=51651710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420290301.8U Active CN203870782U (en) | 2014-05-30 | 2014-05-30 | Energy-saving type electric leakage fire hazard detector detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203870782U (en) |
-
2014
- 2014-05-30 CN CN201420290301.8U patent/CN203870782U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |