CN106710159A - Conductive liquid leakage detection device and power distribution cabinet - Google Patents
Conductive liquid leakage detection device and power distribution cabinet Download PDFInfo
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- CN106710159A CN106710159A CN201611069692.0A CN201611069692A CN106710159A CN 106710159 A CN106710159 A CN 106710159A CN 201611069692 A CN201611069692 A CN 201611069692A CN 106710159 A CN106710159 A CN 106710159A
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- conductive components
- triode
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- conductive
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The invention discloses a conductive liquid leakage detection device and a power distribution cabinet. The device comprises a detection circuit comprising two conductive parts, an insulation part and a part having a water absorption ability, and an alarm circuit which is connected with the two conductive parts and is used for outputting an alarm signal when the two conductive parts are electrically connected, wherein the insulation part is arranged between the two conductive parts and is used for realizing insulation between the two conductive parts, the part having the water absorption ability contacts with the two conductive parts and is used for conducting electrical connection between the two conductive parts when being in a state of absorbing the conductive liquid. The device is advantaged in that an equipment leakage detection speed is improved.
Description
Technical field
The present embodiments relate to electronic installation, more particularly to a kind of conducting liquid leak detecting device and power distribution cabinet.
Background technology
Leak water detdction is the indispensable detection technique in many electrical equipments.
In the prior art, the leak water detdction of the equipment such as cooler of electric motor, water tank is typically with level switch to realize
's.It is put into water storage tank particular by by two electrodes of level switch, when the equipment such as cooler of electric motor, water tank are leaked
During water, the water level in water storage tank reach two electrodes of level switch apart from when (general 3 centimetres), alarm will be sent
Signal.
But, the method fed back by this sensed water level, it may appear that hysteresis phenomenon, i.e., only water level reaches necessarily
Height can just send alarm signal, be alarmed immediately rather than when there is leak.Therefore cannot and alarm, and then cannot take
Measure prevents the damage of the equipment such as motor.
The content of the invention
The embodiment of the present invention provides a kind of conducting liquid leak detecting device and power distribution cabinet, to improve testing equipment leakage
Speed.
In a first aspect, a kind of conducting liquid leak detecting device is the embodiment of the invention provides, including：
Detection circuit, the detection circuit includes two conductive components, insulating element and the parts with water absorbing capacity, its
In, the insulating element is located between described two conductive components, described with water absorbing capacity for completely cutting off two conductive components
Part contacted with described two conductive components, for absorb conducting liquid state under turn on two conductive components between electricity
Connection；
Warning circuit, is connected with described two conductive components, for exporting alarm signal when two conductive components are electrically connected
Number.
Further, the conductive component includes copper sheet.
Further, the part with water absorbing capacity includes blotting paper.
Further, the warning circuit includes relay circuit and alarm, and the relay circuit includes relay
With relay peripheral circuit, the relay includes loop where electromagnet and contact, the electromagnet and two conductive components
It is connected, for when two conductive components are electrically connected, loop on off operating mode to change where electromagnet, and the electromagnet is powered
State change, drives the contact action, to drive the alarm to send alarm signal.
Further, the relay peripheral circuit includes first resistor, second resistance, 3rd resistor, the 4th resistance, the
One triode, the second triode, diode, electric capacity, transformer and rectification circuit, wherein, one end of the first resistor and institute
State the conductive component connection in two conductive components, the base stage of the other end of the first resistor and first triode
Connected with one end of the second resistance, the colelctor electrode of first triode and one end of the 3rd resistor, the described 4th
The base stage connection of one end of resistance and second triode, the emitter stage of first triode, the second resistance it is another
One end, the other end of the 4th resistance, the emitter stage of second triode, the rectification circuit low-voltage output and described
The negative pole end ground connection of electric capacity, the colelctor electrode of second triode connects with one end of the anode of the diode and the electromagnet
Connect, the other end of the negative electrode of the diode and the electromagnet, the other end of the 3rd resistor, the positive pole of the electric capacity
Another conductive component and the rectification circuit high-voltage output end connection in end, described two conductive components, the transformer
Vice-side winding output end be connected with the input of the rectification circuit.
Further, the alarm includes following at least one：Buzzer and warning light.
Further, described two conductive components and insulating element are sheet, and two conductive components press from both sides insulating element
Hold in centre, superposition is set, and the blotting paper is surrounded and is wrapped in predetermined amount on the outside of described two conductive components.
Second aspect, the embodiment of the present invention additionally provides a kind of power distribution cabinet, is also provided including any embodiment of the present invention
Conducting liquid leak detecting device.
Further, the detection circuit of the conducting liquid leak detecting device is arranged on outside the power distribution cabinet, the report
Alert circuit is arranged in the power distribution cabinet.
The technical scheme of the embodiment of the present invention, by the way that when being leaked by detection means, conducting liquid can fall tool
Have on the part of water absorbing capacity, after should having the part of water absorbing capacity to absorb conducting liquid, will be with conductive capability, two conductions
Connected by the part with water absorbing capacity with conductive capability between part so that loop where two conductive components is in
Closure state, makes warning circuit output alarm signal, solves and detects leakage, it is necessary to make the liquid of leakage by level switch
Certain depth is reached in water storage tank can just detect device leakage, the braking problems for causing, so as to improve testing equipment
The speed of leakage.
Brief description of the drawings
Fig. 1 is a kind of structural representation of conducting liquid leak detecting device of offer in the embodiment of the present invention one；
Fig. 2 is a kind of structural representation of detection circuit of offer in the embodiment of the present invention one；
Fig. 3 is the structural representation of another detection circuit of offer in the embodiment of the present invention one；
Fig. 4 is a kind of structural representation of relay peripheral circuit of offer in the embodiment of the present invention one；
Fig. 5 is a kind of structural representation of power distribution cabinet of offer in the embodiment of the present invention two.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part rather than entire infrastructure related to the present invention is illustrate only in description, accompanying drawing.
Embodiment one
Fig. 1 is a kind of structural representation of conducting liquid leak detecting device that the embodiment of the present invention one is provided, such as Fig. 1 institutes
Show, the device includes：Detection circuit 110 and warning circuit 120.Wherein, Fig. 2 is a kind of inspection of offer in the embodiment of the present invention one
The structural representation of slowdown monitoring circuit, as shown in Fig. 2 the detection circuit includes two conductive components 111, insulating element 112 and tool
There is the part 113 of water absorbing capacity, wherein, the insulating element 112 is located between described two conductive components 111, for completely cutting off
Two conductive components 111, the part 113 with water absorbing capacity is contacted with described two conductive components 111, for absorbing
The electrical connection between two conductive components 111 is turned under conducting liquid state；Warning circuit, connects with described two conductive components
Connect, for the output alarm signal when two conductive components are electrically connected.
Wherein, can be including cooler of electric motor, water tank and boiler etc. by detection means, this is filled conduction in detection means
Liquid, the conducting liquid has conductive capability, for example, can be the solution containing electrolyte such as acid, alkali, salt.When by detection means
When leaking, the part that should have water absorbing capacity does not absorb conducting liquid, will be without conductive capability, two conductive parts
Connected without conducting medium between part, loop is in open-circuit condition where two conductive components, the warning circuit can not export report
Alert signal；When being leaked by detection means, conducting liquid can be fallen on the part with water absorbing capacity, should have water suction
After the part of ability absorbs conducting liquid, will be with conductive capability, by the tool with conductive capability between two conductive components
The part for having water absorbing capacity is connected so that loop where two conductive components is in closure state, and the warning circuit 120 will be exported
Alarm signal.The shape of two conductive components and insulating element can be block, strip or bar-shaped etc..Detection circuit is arranged on quilt
Detection means is susceptible to the position of leakage, such as weld, dismountable junction position, for example, circuit can will be detected
It is placed on below weld, so that the liquid of leakage can fall detection circuit surface；Or will detection circuit attach or
It is wrapped in weld.
Preferably, the part 113 with water absorbing capacity includes blotting paper.
Wherein, blotting paper has stronger water absorbing capacity, can contain moisture, and conductive effect is good.
Preferably, as shown in figure 3, described two conductive components 111 and insulating element 112 are sheet, two conductive parts
Insulating element is clamped in centre by part, and superposition is set, and the blotting paper is surrounded and is wrapped in described two conductive component outsides in advance
If the number of turns.
Wherein, conductive effect after predetermined amount can soak according to blotting paper etc. is chosen.Two conductive components 111 are
Sheet can increase the contact area of conductive component and blotting paper, strengthen conductive effect.
Preferably, the conductive component 111 includes copper sheet.
Preferably, the warning circuit 120 includes relay circuit 121 and alarm 122, the relay circuit 121
Including relay 1211 and relay peripheral circuit 1212, the relay 1211 includes electromagnet and contact, the electromagnet
Place loop is connected with two conductive components, for when two conductive components are electrically connected, loop break-make where electromagnet
State change, the electromagnet "on" position changes, and the contact action is driven, to drive the alarm 122 to send alarm
Signal.
Wherein, electromagnet includes magnet and coil, and magnet is in the inside of coil, when there is electric current to flow through in coil, magnet
Magnetic enhancement.When the electric current in coil by without to have or by have to without when, because the magnetic of magnet can change, cause contact dynamic
Make, and then drive alarm to send alarm signal.The contact types of relay include dynamic circuit connector type, moving fault and conversion hysteria.Dynamic circuit connector
The contact of type acts situation：During electromagnet dead electricity two contacts be disconnect, obtain it is electric after two contacts just close.The contact of moving fault
Action situation is：Two contacts are closures during electromagnet dead electricity, obtain electric latter two contact and just disconnect.The contact of conversion hysteria has three
Individual contact, i.e., middle is movable contact, up and down each stationary contact.The contact of conversion hysteria acts situation：During electromagnet dead electricity, move
Contact and one of stationary contact disconnect and another stationary contact closure, obtain it is electric after, movable contact is just moved, and is made originally and movable contact
The stationary contact of disconnection reaches the purpose of conversion into closure, the stationary contact for being closed with movable contact originally into off-state.It is such to touch
Point group is referred to as transfer contact.
Preferably, as shown in figure 4, the relay peripheral circuit 1212 includes first resistor R1, second resistance R2, the 3rd
Resistance R3, the 4th resistance R4, the first triode Q1, the second triode Q2, diode D1, electric capacity C1, transformer T1 and rectified current
Road, wherein, one end of the first resistor R1 is connected with a conductive component in described two conductive components, first electricity
The other end for hindering R1 is connected with the base stage of the first triode Q1 and one end of the second resistance R2, first triode
The base stage of the colelctor electrode of Q1 and one end, one end of the 4th resistance R4 and the second triode Q2 of the 3rd resistor R3
Connection, the emitter stage of the first triode Q1, the other end of the second resistance R2, the other end of the 4th resistance R4,
The negative pole end ground connection of the emitter stage, the rectification circuit low-voltage output and the electric capacity C1 of the second triode Q2 is described
The colelctor electrode of the second triode Q2 is connected with the anode of the diode D1 and one end of the electromagnet, the diode D1's
The other end of negative electrode and the electromagnet, the other end of the 3rd resistor R3, the positive terminal of the electric capacity C1, described two lead
Another conductive component and the rectification circuit high-voltage output end connection in electric part, the vice-side winding of the transformer T1 is defeated
Go out end to be connected with the input of the rectification circuit.
Wherein, if contact is conversion hysteria contact.When the loop where two conductive components is in open-circuit condition, the one or three
The voltage of the base stage of pole pipe Q1 is almost nil, then the collector and emitter of the first triode Q1 is not turned on, then the second triode
The voltage of the base stage of Q2 is high voltage, then the collector and emitter conducting of the second triode Q2, then electromagnet obtains electric, movable contact
With the first stationary contact closure, disconnected with the second stationary contact；When loop is in closure state where two conductive components, the one or three
The voltage of the base stage of pole pipe Q1 is high voltage, then the collector and emitter conducting of the first triode Q1, then the second triode Q2
Base stage voltage it is almost nil, then the collector and emitter of the second triode Q2 is not turned on, then electromagnet dead electricity, movable contact
Disconnected with the first stationary contact, closed with the second stationary contact.By the change of contacts status, alarm is set to send alarm signal.
Preferably, the alarm 122 includes following at least one：Buzzer 1221 and warning light 1222.
Wherein, sound and light alarm is realized by buzzer and warning light.
Optionally, programmable logic controller (PLC) (Programmable Logic can also be accessed in contact
Controller, PLC) input interface circuit part, to realize warning function.
The technical scheme of the present embodiment, by the way that when being leaked by detection means, conducting liquid can be fallen with suction
On the part of outlet capacity, after should having the part of water absorbing capacity to absorb conducting liquid, will be with conductive capability, two conductive components
Between connected by the part with water absorbing capacity with conductive capability so that loops are in closure where two conductive components
State, makes warning circuit output alarm signal, solves and detects leakage, it is necessary to make the liquid of leakage in product by level switch
Certain depth is reached in tank can just detect device leakage, the braking problems for causing, so as to improve testing equipment leakage
Speed.
Embodiment two
Fig. 5 is a kind of structural representation of power distribution cabinet of offer in the embodiment of the present invention two, as shown in figure 5, the power distribution cabinet
Also include the conducting liquid leak detecting device that any embodiment of the present invention is provided.
Preferably, the detection circuit of the conducting liquid leak detecting device is arranged on outside the power distribution cabinet, the alarm
Circuit is arranged in the power distribution cabinet.
Wherein, warning circuit is arranged in power distribution cabinet, compared with mode at the scene is set, is hardly damaged, Ke Yiyan
Long life.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious changes,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although the present invention is carried out by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
More other Equivalent embodiments can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (9)
1. a kind of conducting liquid leak detecting device, it is characterised in that including：
Detection circuit, the detection circuit includes two conductive components, insulating element and the parts with water absorbing capacity, wherein,
The insulating element is located between described two conductive components, described with water absorbing capacity for completely cutting off two conductive components
Part is contacted with described two conductive components, for being electrically connected between two conductive components are turned under absorbing conducting liquid state
Connect；
Warning circuit, is connected with described two conductive components, for the output alarm signal when two conductive components are electrically connected.
2. device according to claim 1, it is characterised in that the conductive component includes copper sheet.
3. device according to claim 1, it is characterised in that the part with water absorbing capacity includes blotting paper.
4. device according to claim 1, it is characterised in that the warning circuit includes relay circuit and alarm,
The relay circuit includes relay and relay peripheral circuit, and the relay includes electromagnet and contact, the electromagnetism
Loop where iron is connected with two conductive components, for when two conductive components are electrically connected, loop where electromagnet to be led
Logical state change, the electromagnet "on" position changes, and the contact action is driven, to drive the alarm to send alarm signal
Number.
5. device according to claim 4, it is characterised in that the relay peripheral circuit includes first resistor, second
Resistance, 3rd resistor, the 4th resistance, the first triode, the second triode, diode, electric capacity, transformer and rectification circuit, its
In, one end of the first resistor is connected with a conductive component in described two conductive components, the first resistor it is another
One end is connected with the base stage of first triode and one end of the second resistance, the colelctor electrode of first triode and institute
State the base stage connection of one end, one end of the 4th resistance and second triode of 3rd resistor, first triode
Emitter stage, the other end of the second resistance, the other end of the 4th resistance, the emitter stage of second triode, institute
State the negative pole end ground connection of rectification circuit low-voltage output and the electric capacity, colelctor electrode and the diode of second triode
Anode and the electromagnet one end connection, the other end of the negative electrode of the diode and the electromagnet, the 3rd electricity
Another conductive component and the rectification circuit in the other end of resistance, the positive terminal of the electric capacity, described two conductive components
High-voltage output end is connected, and the vice-side winding output end of the transformer is connected with the input of the rectification circuit.
6. device according to claim 4, it is characterised in that the alarm includes following at least one：Buzzer and
Warning light.
7. device according to claim 3, it is characterised in that described two conductive components and insulating element are sheet,
Insulating element is clamped in centre by two conductive components, and superposition is set, and the blotting paper is surrounded and is wrapped in described two conductions
Member outside predetermined amount.
8. a kind of power distribution cabinet, it is characterised in that also including any described conducting liquid leak detecting devices of claim 1-7.
9. power distribution cabinet according to claim 8, it is characterised in that the detection circuit of the conducting liquid leak detecting device
It is arranged on outside the power distribution cabinet, the warning circuit is arranged in the power distribution cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069692.0A CN106710159A (en) | 2016-11-29 | 2016-11-29 | Conductive liquid leakage detection device and power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611069692.0A CN106710159A (en) | 2016-11-29 | 2016-11-29 | Conductive liquid leakage detection device and power distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106710159A true CN106710159A (en) | 2017-05-24 |
Family
ID=58935005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611069692.0A Pending CN106710159A (en) | 2016-11-29 | 2016-11-29 | Conductive liquid leakage detection device and power distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106710159A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724629A (en) * | 2017-10-30 | 2019-05-07 | 台湾积体电路制造股份有限公司 | Liquid sensing device and its method for sensing |
| CN114324478A (en) * | 2022-01-05 | 2022-04-12 | 慕思健康睡眠股份有限公司 | Liquid leakage detection device and system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109724629A (en) * | 2017-10-30 | 2019-05-07 | 台湾积体电路制造股份有限公司 | Liquid sensing device and its method for sensing |
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| CN114324478A (en) * | 2022-01-05 | 2022-04-12 | 慕思健康睡眠股份有限公司 | Liquid leakage detection device and system |
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| PB01 | Publication | ||
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Application publication date: 20170524 |