CN207162712U - A kind of economical and practical bathroom heating device - Google Patents
A kind of economical and practical bathroom heating device Download PDFInfo
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- CN207162712U CN207162712U CN201721237068.7U CN201721237068U CN207162712U CN 207162712 U CN207162712 U CN 207162712U CN 201721237068 U CN201721237068 U CN 201721237068U CN 207162712 U CN207162712 U CN 207162712U
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Abstract
The utility model relates to bathroom switching technique field, and super bath directly controls the break-make of heating element heater by relay in the prior art, is acted when relay is near the peak value of alternating current and easily produces electric arc, can impact power network and appliance component；The utility model provides a kind of economical and practical bathroom heating device, including ptc heater, switch key, zero cross detection circuit and control circuit；By the incoming transport electricity zero cross detection circuit in super bath control circuit, disconnected when alternating current is changed near zero-crossing point or closing relay, draw electric arc during so as to avoid the actuating of relay；Also avoid the progress switch relay in the peak value of civil power from impacting power network, also reduce the requirement to component reserved margin, more economical practicality.
Description
Technical field
The utility model relates to bathroom switching technique field, more specifically a kind of economical and practical bathroom heating device.
Background technology
At present, the super bath of in the market directly controls the break-make of heating element heater by relay, and heating element heater is connected in city
Electricity, its voltage are in cyclically-varying, and if the voltage of switch that relay is controlled in action on heating element heater now exceedes
20 volts will produce electric arc, the life-span of relay or switch element be influenceed, especially at the voltage switched on the heating element
Acted when near peak value, bigger electric arc can be produced.Reserved bigger surplus, this gesture are must take into consideration in selector for this
Component cost must be caused too high.
Utility model content
Technical problem to be solved in the utility model is to overcome defect present in above-mentioned prior art, there is provided Yi Zhongan
The controlling switch of the high super bath of full property, low is required to component reserved margin, cost is low, more economical practicality.
To achieve the above object, the utility model is achieved by the following technical programs：A kind of economical and practical bathroom
Heating installation, including, ptc heater, civil power is coupled to, for heating air-flow；Switch key, moved with the switch in response to user
Make and produce switching signal；Zero cross detection circuit, there is a test side and an output end, its test side is coupled to civil power, and its is defeated
The voltage for going out end in civil power is born and by exporting zero cross signal during zero volt by rotating forward；Control circuit, respectively with switch key and mistake
Zero detection circuit signal, which is connected and controlled with ptc heater, to be connected, and receives and responds to the switching signal and zero cross signal,
The break-make that ptc heater is controlled after a switching signal and a zero cross signal is received successively.
Using above-mentioned technical proposal, after control circuit receives user's switch motion, treat that zero cross detection circuit detects
When the voltage of civil power is born by rotating forward and passes through zero volt electricity, then ptc heater is controlled to connect or disconnect, can be with effective control
Relay acts when the voltage of civil power is faded near zero volt, avoid the occurrence of that immediate current is excessive or overtension and there is electricity
Influence of the arc spark to electric elements, so as to improve the service life of switching component, also avoid entering in the peak value of civil power
Row switch relay impacts to power network, while also reduces the requirement to component reserved margin, more economical practicality.
The further preferred scheme of the utility model is：The control circuit is receiving a switching signal and a mistake successively
After zero-signal, and output controls OFF signal and controls the break-make of ptc heater after the T1 that is delayed；The response time of the control circuit is
T2, i.e., control circuit in the case of no-delay from when receiving from first zero cross signal after switching signal to ptc heater
Time during complete break-make.
Because the response time be present in relay（I.e. from the time received needed for action signal to switch execution）, no
Same species, specification relay response time there is also difference, in order that it is when the voltage change of civil power is near zero volt
Just ptc heater is connected or disconnected, it is necessary to coordinate relay attached to zero volt in the voltage change of civil power by being delayed
Execution when near.
The further preferred scheme of the utility model is：The control circuit includes, and a single-chip microcomputer, its signal input part is with opening
Close button is connected with zero cross detection circuit, receives the switching signal and zero cross signal, and its signal output part output control is closed
Signal；One on-off circuit, its input are coupled to the signal output part of single-chip microcomputer.The size of delay time can pass through single-chip microcomputer
Adjustment.
The further preferred scheme of the utility model is：The on-off circuit include first resistor R1, NPN triode Q1, after
Electrical equipment KM and diode D1；Wherein first resistor R1 one end is coupled to the signal output part of single-chip microcomputer, and the other end is coupled to NPN
Triode Q1 base stage；The grounded emitter of NPN triode Q1, base stage receive the control OFF signal；Relay KM coil one
End is coupled to the first direct current, and the other end is coupled to the colelctor electrode of the NPN triode, and its switch is serially connected with the ptc heater
Between power supply；Diode D1, its positive pole are coupled to first direct current, and negative pole is coupled to the colelctor electrode of NPN triode Q1
Between relay KM coil.
The utility model is more preferably：The switch that the relay uses is singly throws double-pole switch.
Using above-mentioned technical proposal, it is using singly throwing double-pole switch and being divided the total current one of circuit by way of in parallel
Two, further reduce the size of its transient current, to reduce the generation of electric arc.
The utility model is more preferably：The zero cross detection circuit includes diode D2, diode D3 and electric capacity C1；
The diode D2 and diode D3 successively reversal connection between the second direct current and earth terminal；The electric capacity C1 is parallel to diode
D2 both ends；Tie point between diode D2 positive poles and diode D3 negative poles electrically connects through three resistance with city successively, and should
Tie point exports the zero cross signal through another resistance.Decreased below in the voltage of civil power by the voltage more than the second direct current
During the voltage of the second direct current, a high level signal is produced in the one end for another resistance being connected with the tie point, i.e. zero passage is believed
Number.
In summary, the utility model is being exchanged by the incoming transport electricity zero cross detection circuit in super bath control circuit
Disconnected during the near zero-crossing point of electricity or closing relay, draw electric arc during so as to avoid the actuating of relay；Also avoid in civil power
Switch relay is carried out during peak value to impact power network, also reduces the requirement to component reserved margin, it is more economical real
The property used.
Brief description of the drawings
Fig. 1 is circuit theory diagrams figure of the present utility model；
Fig. 2 is the circuit theory diagrams of zero cross detection circuit.
In figure：1st, zero cross detection circuit；2nd, control circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
The present embodiment is only that it is not to limitation of the present utility model, this area skill to explanation of the present utility model
Art personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but as long as
All protected in right of the present utility model by Patent Law.
As depicted in figs. 1 and 2, show that a kind of economical and practical bathroom heating device, including ptc heater, switch are pressed
Key, zero cross detection circuit 1 and control circuit 2.
Ptc heater, civil power is coupled to, for heating air-flow.
Switch key, with the switch motion in response to user and produce switching signal.Typically using mechanical switch or touch
Switch key is controlled, is no longer described in detail one by one herein.
Zero cross detection circuit 1, there is a test side and an output end, its test side is coupled to civil power, and its output end is in city
The voltage of electricity is born and by exporting zero cross signal during zero volts by rotating forward.
Control circuit 2, it is connected respectively with switch key and the signal of zero cross detection circuit 1 and controls connection with ptc heater,
Switching signal and zero cross signal are received and responded to, PTC heating is controlled after a switching signal and a zero cross signal is received successively
The break-make of device.
In the present embodiment, zero cross detection circuit 1 includes diode D2, diode D3 and electric capacity C1.
Diode D2 and diode D3 successively reversal connection between the second direct current and earth terminal；Electric capacity C1 is parallel to diode
D2 both ends；Tie point between diode D2 positive poles and diode D3 negative poles electrically connects through three resistance with city successively, and should
Tie point exports the zero cross signal through another resistance.
Control circuit 2 after a switching signal and a zero cross signal is received successively, and output controls OFF signal simultaneously after the T1 that is delayed
Control the break-make of ptc heater；The response time of control circuit 2 is T2, i.e., control circuit 2 is from receiving in the case of no-delay
From first zero cross signal after switching signal when break-make complete to ptc heater when time.
T1+T2 time range is derived from as follows：With single-chip microcomputer from when receiving first zero cross signal after switching signal
For origin, line voltage afterwards is during being born or being turned negative number to positive number by rotating forward, when all near zero-crossing points are between ± 20V
Between section set.
Control circuit 2 includes a single-chip microcomputer and an on-off circuit.One single-chip microcomputer, its signal input part and switch key and mistake
Zero detection circuit 1 connects, and receives switching signal and zero cross signal, its signal output part output control OFF signal；One on-off circuit, its
Input is coupled to the signal output part of single-chip microcomputer.
Further, on-off circuit includes first resistor R1, NPN triode Q1, relay KM and diode D1；Wherein
One resistance R1 one end is coupled to the signal output part of single-chip microcomputer, and the other end is coupled to the base stage of NPN triode Q1；The poles of NPN tri-
Pipe Q1 grounded emitter, base stage receive control OFF signal；Relay KM coil one end is coupled to the first direct current, other end coupling
The colelctor electrode of the NPN triode is connected to, its switch is serially connected between ptc heater and power supply；Diode D1, its positive pole are coupled to
First direct current, negative pole are coupled between the colelctor electrode of NPN triode Q1 and relay KM coil.Need what is illustrated
It is that switch is singly to throw double-pole switch used by the relay in the present embodiment.
In the present embodiment, the voltage of the first direct current is+12V, and the voltage of the second direct current is+5V.
The specifically used process of the present embodiment is as follows：Alternating current 220V live wire, pass through a series of resistance（Successively through resistance
R2, R3 and R4）The tie point being coupled to after partial pressure between diode D2 positive poles and diode D3 negative poles.Whenever the voltage of alternating current
When decreasing below the voltage of the second direct current by peak value, the tie point just produces a high level signal（That is zero cross signal）, it is single
Piece machine MCU receives this periodic zero cross signal.
When user's touch switch button, caused switching signal.After single-chip microprocessor MCU receives switching signal, next mistake is waited
Zero-signal arrives, and according to the response time T2 of relay, single-chip microcomputer MUC delays T1 sends control OFF signal, and control relay acts,
The break-make of ptc heater is completed, so as to ensure to allow relay to be acted in the near zero-crossing point of alternating current, when avoiding the actuating of relay
Electric arc is drawn, so as to reach the effect for extending relay life.
Claims (6)
- A kind of 1. economical and practical bathroom heating device, it is characterised in that：Including,Ptc heater, civil power is coupled to, for heating air-flow；Switch key, with the switch motion in response to user and produce switching signal；Zero cross detection circuit（1）, there is a test side and an output end, its test side is coupled to civil power, and its output end is in civil power Voltage it is negative and by exporting zero cross signal during zero volt by rotating forward；Control circuit（2）, respectively with switch key and zero cross detection circuit（1）Signal is connected and controlled with ptc heater and connected, The switching signal and zero cross signal are received and responded to, PTC is controlled after a switching signal and a zero cross signal is received successively The break-make of heater.
- 2. bathroom heating device according to claim 1, it is characterised in that：The control circuit（2）Institute is being received successively After stating a switching signal and a zero cross signal, and output controls OFF signal and controls the break-make of ptc heater after the T1 that is delayed；The control Circuit processed（2）Response time be T2, i.e., the control circuit in the case of no-delay（2）From receiving from first after switching signal Time during individual zero cross signal during break-make complete to ptc heater.
- 3. bathroom heating device according to claim 2, it is characterised in that：The control circuit（2）Including,One single-chip microcomputer, its signal input part and switch key and zero cross detection circuit（1）Connection, receives the switching signal and mistake Zero-signal, its signal output part export the control OFF signal；One on-off circuit, its input are coupled to the signal output part of single-chip microcomputer.
- 4. bathroom heating device according to claim 3, it is characterised in that：The on-off circuit include first resistor R1, NPN triode Q1, relay KM and diode D1；Wherein first resistor R1 one end is coupled to the signal output part of single-chip microcomputer, and the other end is coupled to the base of NPN triode Q1 Pole；The grounded emitter of NPN triode Q1, base stage receive the control OFF signal；Relay KM coil one end is coupled to the first direct current, and the other end is coupled to the colelctor electrode of the NPN triode, and it is switched It is serially connected between the ptc heater and power supply；Diode D1, its positive pole are coupled to first direct current, and negative pole is coupled to the colelctor electrode and the relay of NPN triode Q1 Between device KM coil.
- 5. bathroom heating device according to claim 4, it is characterised in that：The switch that the relay uses is double singly to throw Knife-like switch.
- 6. bathroom heating device according to claim 1, it is characterised in that：The zero cross detection circuit（1）Including two poles Pipe D2, diode D3 and electric capacity C1；The diode D2 and diode D3 successively reversal connection between the second direct current and earth terminal；The electric capacity C1 is parallel to two Pole pipe D2 both ends；Tie point between diode D2 positive poles and diode D3 negative poles electrically connects through three resistance with city successively, And the tie point exports the zero cross signal through another resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237068.7U CN207162712U (en) | 2017-09-25 | 2017-09-25 | A kind of economical and practical bathroom heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721237068.7U CN207162712U (en) | 2017-09-25 | 2017-09-25 | A kind of economical and practical bathroom heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207162712U true CN207162712U (en) | 2018-03-30 |
Family
ID=61723779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721237068.7U Active CN207162712U (en) | 2017-09-25 | 2017-09-25 | A kind of economical and practical bathroom heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207162712U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448532A (en) * | 2018-04-24 | 2018-08-24 | 广东华美骏达电器有限公司 | A kind of relay zero-crossing control circuit |
| CN111148286A (en) * | 2019-12-24 | 2020-05-12 | 追觅科技(上海)有限公司 | Equipment control method, device and storage medium |
| CN114352512A (en) * | 2021-12-16 | 2022-04-15 | 北京怡和嘉业医疗科技股份有限公司 | Control method and control equipment of air compressor and oxygen generator |
-
2017
- 2017-09-25 CN CN201721237068.7U patent/CN207162712U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448532A (en) * | 2018-04-24 | 2018-08-24 | 广东华美骏达电器有限公司 | A kind of relay zero-crossing control circuit |
| CN111148286A (en) * | 2019-12-24 | 2020-05-12 | 追觅科技(上海)有限公司 | Equipment control method, device and storage medium |
| CN114352512A (en) * | 2021-12-16 | 2022-04-15 | 北京怡和嘉业医疗科技股份有限公司 | Control method and control equipment of air compressor and oxygen generator |
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