CN207303984U - A kind of heat pump leakproof electric system - Google Patents
A kind of heat pump leakproof electric system Download PDFInfo
- Publication number
- CN207303984U CN207303984U CN201721173832.9U CN201721173832U CN207303984U CN 207303984 U CN207303984 U CN 207303984U CN 201721173832 U CN201721173832 U CN 201721173832U CN 207303984 U CN207303984 U CN 207303984U
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- heat pump
- resistance
- output terminal
- decision
- pump assembly
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Abstract
The utility model discloses a kind of heat pump leakproof electric system, including potentiometric detection module, humidity detecting module, decision-making module and normally closed relay, the energization of the normally closed relay output terminal control heat pump assembly and mains electricity input end connects, the potentiometric detection module output terminal, humidity detecting module output terminal are connected with decision-making module input terminal respectively, and the decision-making module output terminal is connected with normally closed relay control terminal.Specifically, the utility model is used as contrast signal by detecting heat pump assembly casing charged state and environmental air humidity value, when detecting that heat pump assembly casing and ground difference are higher or air humidity is higher, have and be greatly likely to occur electric leakage accident, decision-making module sends control signals to normally closed relay to disconnect the energization of heat pump assembly and mains electricity input end connection at this time, prevents the generation of electric shock accidents.The utility model is used to prevent heat pump assembly from electric leakage accident occur.
Description
Technical field
Heat pump assembly technical field is the utility model is related to, more specifically to a kind of leakproof applied in heat pump assembly
Electric system.
Background technology
In actual life, dehumidifying heat pump assembly is mainly used for heating ambient air temperature or refrigerating operation, reduces at the same time
Air moisture in environment.
Existing heat pump assembly belongs to high voltage, high current electrical equipment, it is therefore desirable to anticreeper is configured with, to protect
Demonstrate,prove the heat pump assembly security of personnel and appliance arrangement during use.But traditional heat pump assembly configured it is anticreep
Device reliability can be low, and security is poor, can not autonomous detection heat pump assembly potential electric leakage hidden danger, preventing to have in advance can
The electric leakage accident that can occur.
Utility model content
The technical problems to be solved in the utility model is：There is provided a kind of can detect the anti-of the potential electric leakage hidden danger of heat pump assembly
Electric leakage system.
The solution that the utility model solves its technical problem is：
A kind of heat pump leakproof electric system, including for detecting the potentiometric detection mould of potential difference between heat pump assembly casing and ground
Block, the humidity detecting module for detecting ambient humidity, be powered company for be made whether to disconnect heat pump assembly and mains electricity input end
Connect the decision-making module and normally closed relay of decision, the normally closed relay output terminal control heat pump assembly and mains electricity input end
Be powered connection, and the potentiometric detection module output terminal, humidity detecting module output terminal are connected with decision-making module input terminal respectively, institute
Decision-making module output terminal is stated with normally closed relay control terminal to be connected.
Further as above-mentioned technical proposal is improved, the potentiometric detection module include current transformer, power supply,
Resistance R1, resistance R2, resistance R3, NOT gate and triode Q1, the current transformer output terminal are gone here and there with resistance R1 and resistance R2
Connection, the triode Q1 base stages are connected between resistance R1 and resistance R2, the triode Q1 emitters ground connection, the triode
Q1 collectors are connected by resistance R3 with power supply, and the triode Q1 collectors pass through NOT gate and decision-making module input terminal phase
Even.
Further as above-mentioned technical proposal is improved, and the humidity detecting module includes humistor RH, thermistor
RT, resistance R4, resistance R5 and transport and placing device A1, the power supply are connected by resistance R4 with transport and placing device A1 in-phase input ends,
The transport and placing device A1 reverse inter-input-ing ending groundings, the resistance R5 both ends respectively with transport and placing device A1 in-phase input ends and output terminal phase
Even, the transport and placing device A1 output terminals are connected with decision-making module input terminal, and the thermistor RT is in parallel with resistance R4, the wet sensitive
Resistance RH is in parallel with resistance R5.
Further as above-mentioned technical proposal is improved, and the decision-making module includes being used for the benchmark list for providing reference voltage
Member, comparing unit and OR gate arithmetic element, the humidity detecting module output terminal and reference cell output terminal respectively with than
It is connected compared with unit input terminal, the comparing unit output terminal and potentiometric detection module output terminal are defeated with OR gate arithmetic element respectively
Enter end to be connected, the OR gate arithmetic element output terminal is connected with normally closed relay control terminal.
Further as above-mentioned technical proposal is improved, and the utility model further includes electrical shock protection module, and described get an electric shock is protected
Shield module includes cricoid Hall sensor, and the Hall sensor is set in mains electricity input end periphery, the Hall sensor
Output terminal is connected with normally closed relay control terminal.
The beneficial effects of the utility model are：The utility model is by detecting heat pump assembly casing charged state and environment
Hollow air humidity angle value is as contrast signal, when detecting that heat pump assembly casing and ground difference are higher or air humidity is higher
When, have and be greatly likely to occur electric leakage accident, decision-making module sends control signals to normally closed relay to disconnect heat pump at this time
The energization connection of device and mains electricity input end, prevents the generation of electric shock accidents.The utility model is used to prevent heat pump assembly from occurring
Electric leakage accident.
Brief description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is the part of the embodiment of the utility model, rather than entirely
Portion's embodiment, those skilled in the art without creative efforts, can also obtain it according to these attached drawings
His designing scheme and attached drawing.
Fig. 1 is the system module frame diagram of the utility model；
Fig. 2 is the potentiometric detection module embodiments schematic diagram of the utility model；
Fig. 3 is the humidity detecting module embodiment schematic diagram of the utility model；
Fig. 4 is the decision-making module embodiment schematic diagram of the utility model.
Embodiment
Carried out below with reference to the technique effect of the design of embodiment and attached drawing to the utility model, concrete structure and generation
Clearly and completely describe, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is the part of the embodiment of the utility model, rather than whole embodiments, the embodiment based on the utility model, the skill of this area
The other embodiment that art personnel are obtained without creative efforts, belongs to the model of the utility model protection
Enclose.In addition, all connection relations being previously mentioned in text, not single finger element directly connects, and refer to can be according to specific implementation feelings
Condition, by adding or reducing connecting element, to form more preferably circuit structure.Each technical characteristic in the invention,
Can be with combination of interactions on the premise of not conflicting conflict.
With reference to Fig. 1~Fig. 4, the utility model discloses a kind of heat pump leakproof electric system, including for detecting heat pump assembly
The potentiometric detection module of potential difference, the humidity detecting module for detecting ambient humidity between casing and ground, for be made whether
Decision-making module and normally closed relay that heat pump assembly is determined with mains electricity input end energization connection are disconnected, the normally closed relay is defeated
Outlet controls the energization of heat pump assembly and mains electricity input end to connect, and the potentiometric detection module output terminal, humidity detecting module are defeated
Outlet is connected with decision-making module input terminal respectively, and the decision-making module output terminal is connected with normally closed relay control terminal.Specifically,
The utility model is used as contrast signal by detecting heat pump assembly casing charged state and environmental air humidity value, works as detection
It is higher or when air humidity is higher to heat pump assembly casing and ground difference, have and be greatly likely to occur electric leakage accident,
Decision-making module sends control signals to normally closed relay to disconnect the energization of heat pump assembly and mains electricity input end connection at this time, prevents
The generation of electric shock accidents.The utility model is used to prevent heat pump assembly from electric leakage accident occur.
It is further used as preferred embodiment, in the utility model embodiment, the potentiometric detection module bag
It is defeated to include current transformer, power supply, resistance R1, resistance R2, resistance R3, NOT gate and triode Q1, the current transformer
Outlet is connected with resistance R1 and resistance R2, and the triode Q1 base stages are connected between resistance R1 and resistance R2, the triode Q1
Emitter is grounded, and the triode Q1 collectors are connected by resistance R3 with power supply, and the triode Q1 collectors pass through
NOT gate is connected with decision-making module input terminal.Wherein current transformer input terminates at connection heat pump assembly casing and the earth
On ground wire, to sense the leakage current size of heat pump assembly, filled by the leakage current indirect detection heat pump for detecting heat pump assembly
The potential difference with ground wire is put, current transformer output terminal is transferred to triode Q1 bases after resistance R1 and resistance R2 partial pressures
Pole, when leakage current is larger, triode Q1 base stages are in high level, and triode Q1 is turned on, collector output low level, NOT gate output
End output high level, conversely when leakage current is smaller, triode Q1 base stages are in low level, and triode Q1 ends, and collector is defeated
Go out high level, non-gate output terminal exports low level.
It is further used as preferred embodiment, in the utility model embodiment, the humidity detecting module bag
Humistor RH, thermistor RT, resistance R4, resistance R5 and transport and placing device A1 are included, the power supply passes through resistance R4 and fortune
Put device A1 in-phase input ends to be connected, the transport and placing device A1 reverse inter-input-ing ending groundings, the resistance R5 both ends respectively with transport and placing device A1
In-phase input end is connected with output terminal, and the transport and placing device A1 output terminals are connected with decision-making module input terminal, the thermistor RT
In parallel with resistance R4, the humistor RH is in parallel with resistance R5.Specifically, the humistor can be selected according to the actual requirements
Positive variation coefficient or negative temperature coefficient are selected, only need to ensure that humidity detecting module output voltage also becomes when air humidity increases
It is big.The humidity detecting module is actually a voltage amplifier, when ambient air humidity changes, wet sensitive electricity
Resistance RH resistance values can also change, into and change the amplification factor of voltage amplifier, so as to change the output of humidity detecting module
Voltage.In addition the thermistor RT is used for amplifying circuit temperature compensation function.
It is further used as preferred embodiment, in the utility model embodiment, the decision-making module includes using
In provide reference voltage reference cell, comparing unit and OR gate arithmetic element, the humidity detecting module output terminal and
Reference cell output terminal is connected with comparing unit input terminal respectively, the comparing unit output terminal and the output of potentiometric detection module
End is connected with OR gate arithmetic element input terminal respectively, and the OR gate arithmetic element output terminal is connected with normally closed relay control terminal.
Specifically, if when potentiometric detection module or comparing unit output high level, you can feel the need to disconnect heat pump assembly with
The energization connection of mains electricity input end.
Preferred embodiment is further used as, electrical shock protection module is further included in the utility model embodiment,
The electrical shock protection module includes cricoid Hall sensor, and the Hall sensor is set in mains electricity input end periphery, described
Hall sensor output is connected with normally closed relay control terminal.By electrical shock protection module described in the utility model, to protect
Even if the situation that someone touches powered heat pump assembly casing occurs in card, it can also protect toucher safe, escape injury.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make a variety of equivalent changes on the premise of without prejudice to the utility model spirit
Type or replacement, these equivalent modifications or replacement are all contained in the application claim limited range.
Claims (5)
- A kind of 1. heat pump leakproof electric system, it is characterised in that：Including for detecting potential difference between heat pump assembly casing and ground Potentiometric detection module, the humidity detecting module for detecting ambient humidity, for be made whether disconnect heat pump assembly and alternating current it is defeated Enter decision-making module and normally closed relay that end energization connection determines, the normally closed relay output terminal control heat pump assembly and city The energization connection of electrical input, the potentiometric detection module output terminal, humidity detecting module output terminal are defeated with decision-making module respectively Enter end to be connected, the decision-making module output terminal is connected with normally closed relay control terminal.
- A kind of 2. heat pump leakproof electric system according to claim 1, it is characterised in that：The potentiometric detection module includes electricity Current transformer, power supply, resistance R1, resistance R2, resistance R3, NOT gate and triode Q1, the current transformer output terminal Connect with resistance R1 and resistance R2, the triode Q1 base stages are connected between resistance R1 and resistance R2, the triode Q1 transmittings Pole is grounded, and the triode Q1 collectors are connected by resistance R3 with power supply, and the triode Q1 collectors pass through NOT gate It is connected with decision-making module input terminal.
- A kind of 3. heat pump leakproof electric system according to claim 2, it is characterised in that：The humidity detecting module includes wet Quick resistance RH, thermistor RT, resistance R4, resistance R5 and transport and placing device A1, the power supply pass through resistance R4 and transport and placing device A1 in-phase input ends are connected, the transport and placing device A1 reverse inter-input-ing ending groundings, the resistance R5 both ends respectively with the same phases of transport and placing device A1 Input terminal is connected with output terminal, and the transport and placing device A1 output terminals are connected with decision-making module input terminal, the thermistor RT and electricity It is in parallel to hinder R4, the humistor RH is in parallel with resistance R5.
- A kind of 4. heat pump leakproof electric system according to claim 3, it is characterised in that：The decision-making module includes being used to carry Reference cell, comparing unit and the OR gate arithmetic element of supply reference voltage, the humidity detecting module output terminal and benchmark Unit output terminal is connected with comparing unit input terminal respectively, the comparing unit output terminal and potentiometric detection module output terminal point It is not connected with OR gate arithmetic element input terminal, the OR gate arithmetic element output terminal is connected with normally closed relay control terminal.
- A kind of 5. heat pump leakproof electric system according to claim 1, it is characterised in that：Further include electrical shock protection module, institute Stating electrical shock protection module includes cricoid Hall sensor, and the Hall sensor is set in mains electricity input end periphery, it is described suddenly You are connected at sensor output with normally closed relay control terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173832.9U CN207303984U (en) | 2017-09-12 | 2017-09-12 | A kind of heat pump leakproof electric system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173832.9U CN207303984U (en) | 2017-09-12 | 2017-09-12 | A kind of heat pump leakproof electric system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207303984U true CN207303984U (en) | 2018-05-01 |
Family
ID=62447087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721173832.9U Active CN207303984U (en) | 2017-09-12 | 2017-09-12 | A kind of heat pump leakproof electric system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207303984U (en) |
-
2017
- 2017-09-12 CN CN201721173832.9U patent/CN207303984U/en active Active
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