CN108770159A - A kind of circuit and method improving UV lamp service life - Google Patents
A kind of circuit and method improving UV lamp service life Download PDFInfo
- Publication number
- CN108770159A CN108770159A CN201810839392.9A CN201810839392A CN108770159A CN 108770159 A CN108770159 A CN 108770159A CN 201810839392 A CN201810839392 A CN 201810839392A CN 108770159 A CN108770159 A CN 108770159A
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- CN
- China
- Prior art keywords
- circuit
- lamp
- service life
- capacitor drive
- drive circuit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
- H05B41/14—Circuit arrangements
- H05B41/26—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc
- H05B41/28—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters
- H05B41/282—Circuit arrangements in which the lamp is fed by power derived from dc by means of a converter, e.g. by high-voltage dc using static converters with semiconductor devices
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a kind of circuits improving UV lamp service life, including power module, amplifying circuit, controller, relay, capacitor drive circuit and UV lamp, it is connected with discharge circuit in the capacitor drive circuit, power module provides power supply to controller and UV lamp respectively, the contact of relay, capacitor drive circuit are sequentially connected in series in the current supply circuit of UV lamp, the coil of relay is connected by the signal control terminal of amplifying circuit and controller, and discharge circuit is connected to capacitor drive circuit.The invention also discloses a kind of methods improving UV lamp service life.The present invention can quickly discharge to capacitance, improve the load end UV lamp service life.
Description
Technical field
The present invention relates to the sterilization technology of clothes airing machine, a kind of circuit improving UV lamp service life and side are related in particular to
Method.
Background technology
With the continuous development of science and technology, people increasingly pursue the life of high-quality, health, and UV sterilization technologies are extensive
For industries such as medical treatment, scientific research, food, small household appliances.UV lamp is the abbreviation of quartz burner, and this fluorescent tube utilizes ultraviolet light
Own characteristic carries out photochemical reaction, product solidification, sterilizing, medical inspection etc..As common fluorescent tube, UV lamp similarly has
Service life, after UV lamp service life reaches, the bactericidal effect of UV lamp is substantially reduced or is damaged.In clothes airing machine, UV lamp is normal
Rush of current when being switched easily reduces the UV lamp service life.
UV lamp control circuit needs to be placed in capacitor drive circuit when design, for being depressured to UV lamp.When access electricity
When source, the capacitance in capacitor drive circuit completes decompression, and UV lamp is opened in driving, while capacitance stores big volume and electricity, but disconnects electricity
Behind source, that is, when closing UV lamp, the electricity of capacitance storage is unable to quick release, and data are obtained through experiment test：As capacitance=4UF
When, deenergization, output voltage is 9V, output current 0.27A, stand-by power consumption 1.03W after capacitor drive circuit.This
When, the not enough power supply of capacitance storage is to open UV lamp, but the UV lamp at meeting impact load end, in some instances it may even be possible to damage UV lamp, contract
The service life of short UV lamp, while if when operating personnel accidentally touch the capacitance on control panel, being stored due to capacitance
Electricity is formed into a loop with human body, it may occur that Danger Electric shock risk, and the electricity of capacitance storage can remain for a long time, the security risk
Also there will be for a long time.
Invention content
For overcome the deficiencies in the prior art, one of the objects of the present invention is to provide a kind of raising UV lamp service lifes
Circuit can quickly discharge to capacitance, improve the load end UV lamp service life.
The second object of the present invention is to provide a kind of method improving UV lamp service life, can quickly discharge capacitance,
Improve the load end UV lamp service life.
An object of the present invention is achieved through the following technical solutions：
A kind of circuit improving UV lamp service life, including power module, amplifying circuit, controller, relay, capacitance drive
Circuit and UV lamp are moved, discharge circuit is connected in the capacitor drive circuit, power module respectively provides controller and UV lamp
Power supply, the contact of relay, capacitor drive circuit are sequentially connected in series in the current supply circuit of UV lamp, and the coil of relay passes through amplification
The signal control terminal of circuit and controller connects, and discharge circuit is connected to capacitor drive circuit.
Further, capacitor drive circuit is CBB electric capacity, is connected between UV lamp and relay contact.
Further, discharge circuit includes resistance unit, and resistance unit is connected to CBB electric capacity both ends.
Further, several resistance that resistance unit includes and connects.
Further, resistance is metal oxidation resistance.
Further, controller MCU.
The second object of the present invention is achieved through the following technical solutions：
A method of UV lamp service life is improved, including：
UV lamp is accessed into current supply circuit；
Capacitor drive circuit is serially connected in current supply circuit, UV lamp is depressured by capacitor drive circuit and is driven；
In the both ends of capacitor drive circuit and access discharge circuit.
Compared with prior art, the present invention has the advantages that：
The controller of the present invention sends a command to amplifying circuit and then controls relay and connects, and capacitor drive circuit completes drop
Pressure, driving light UV lamp, while capacitor drive circuit storing electricity, when controller send a command to amplifying circuit so that control after
Electric appliance disconnects, and the circuit of discharge circuit composition carries out repid discharge to capacitor drive circuit, to improve UV lamp service life,
Accidental shock occurs for the operating personnel for also avoiding capacitor drive circuit on touching master control borad simultaneously.
Description of the drawings
Fig. 1 is the connection diagram for the circuit that the present invention improves UV lamp service life；
Fig. 2 is the UV lamp control principle drawing for the circuit that the present invention improves UV lamp service life；
Fig. 3 is the wiring diagram of amplifying circuit of the present invention；
Fig. 4 is the wiring diagram of controller of the present invention.
Specific implementation mode
The following further describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of circuit of raising UV lamp service life as shown in Figure 1, including power module, amplifying circuit, controller, after
Electric appliance, capacitor drive circuit and UV lamp are connected with discharge circuit in the capacitor drive circuit, and power module is respectively to controller
Power supply is provided with UV lamp, the contact of relay, capacitor drive circuit are sequentially connected in series in the current supply circuit of UV lamp, the line of relay
Circle is connected by the signal control terminal of amplifying circuit and controller, and discharge circuit is connected to capacitor drive circuit.
Power module connects alternating current input, and device and UV lamp provide suitable voltage in order to control.Controller sends a command to amplification
Circuit and then control relay connection, capacitor drive circuit complete decompression, and UV lamp, while capacitor drive circuit storage are lighted in driving
Electricity is disconnected when controller sends a command to amplifying circuit and then controls relay, and capacitance is driven in the circuit of discharge circuit composition
Dynamic circuit carries out repid discharge, to improve UV lamp service life.
Wherein, the capacitor drive circuit of the present embodiment is CBB electric capacity, is connected between UV lamp and relay contact.Electric discharge
Circuit includes resistance unit, and resistance unit is connected to CBB electric capacity both ends.Several resistance that resistance unit includes and connects, this example
UV lamp is two, corresponds to CN2, CN3, and two capacitor drive circuits of corresponding configuration correspond to Cbb1, Cbb2, and correspondence is matched
Set two discharge circuits, in discharge circuit, the resistance that this example constitutes discharge circuit is two, the resistance of corresponding two discharge circuits
For RY2, RY3, RY4, RY5.The resistance of this example is metal oxidation resistance, has fabulous pulse, high frequency and overload performance,
And wear-resisting, corrosion-resistant, stable chemical performance.The controller of this example is MCU.
As shown in Fig. 2, CN1 port input of the alternating current input through power module, REL1 is relay.CN2 and CN3 are respectively
Two UV lamps, Cbb1 and Cbb2 are CBB electric capacity, and CBB electric capacity has the works such as energy storage, filtering, coupling, the concussion of logical exchange stopping direct current
With, but play the role of decompression in UV lamp control circuit.The principle of capacitance decompression is analyzed with complex function:The impedance Xc of capacitance
=1/j ω C, the pressure drop IXc on capacitance, I is complex function electric current herein.Also can approximate representation be IoXc, herein Io be load electricity
Stream.Resistance RY2 and RY3 is connected in parallel in one end of Cbb1 and the high pressure common end of relay, and resistance RY4 and RY5 is connected in parallel
High pressure common end in one end of Cbb2 and relay forms discharge circuit.
As shown in Fig. 2, the control process of the present embodiment is specific as follows：
UV lamp is opened：The UV-Light-ON terminations of relay coil receive the warp sent by MCU controller signals control terminals
The transformed low level signal of amplifying circuit is crossed, relay REL1 puts out conjunction, and the voltage of 220V arrives again by 2 feet of relay REL1
1 foot of REL1, then decompression is completed by Cbb1 in capacitor drive circuit and Cbb2, UV lamp CN2, CN3 of load is opened in driving.?
During this, Cbb1 and Cbb2 capacitances can store big volume and electricity.
UV lamp is closed：The UV-Light-ON terminations of relay coil receive the warp sent by MCU controller signals control terminals
The transformed high level signal of amplifying circuit is crossed, relay REL1 is disconnected, and UV lamp control loop is disconnected, what discharge circuit was formed
Circuit starts work of discharging.
It calculates, discharge time：T=RC*Ln (E/ (E-Vt)), as t=RC, capacitance voltage=0.63E；Work as t
When=2RC, capacitance voltage=0.86E；As t=3RC, capacitance voltage=0.95E；As t=4RC, capacitance voltage=
0.98E；As t=5RC, capacitance voltage=0.99E；I.e. after 3-5 RC, basic electric discharge is completed.When RY2, RY3,
The resistance value of RY4, RY5 are 200K, when Cbb1=Cbb2=4uF, it is only necessary to which the time of 2S can discharge capacitance storage electricity.And
And when not connecing discharge circuit, stand-by power consumption is 1.03W, is 1.01W after access, power consumption also decreases.
As shown in Figure 3, Figure 4, U1 is amplifying circuit, and IC1 MCU, R1 and C1 form MCU reset circuits, the P11 feet of MCU
It is connected with the IN2 of U1, MCU is used as signal control terminal by the ports P11, exports high level or low level signal, control chip U1
Control relay work.As shown in Figure 2, Figure 3 and Figure 4, when MCU controllers, which receive, opens UV lamp instruction, MCU controls P11
Export high level signal, by amplifying circuit U1, low level signal exported from the ports OUT2, relay REL1 is connected, Cbb1 and
Cbb2 capacitances are depressured, and UV lamp is lighted in driving, are disconnected, are put when MCU controllers send a command to amplifying circuit control relay
The circuit of circuit composition carries out repid discharge to CBB electric capacity.
A kind of method of the raising UV lamp service life of the present embodiment, including：
UV lamp is accessed into current supply circuit；
Capacitor drive circuit is serially connected in current supply circuit, UV lamp is depressured by capacitor drive circuit and is driven；
In the both ends of capacitor drive circuit and access discharge circuit.
The implementation of the present invention is not limited to this, and the above according to the invention is known using the ordinary skill of this field
Knowledge and customary means, under the premise of not departing from above-mentioned basic fundamental thought of the invention, the present invention can also make other a variety of shapes
Modification, replacement or the change of formula, all fall within rights protection scope of the present invention.
Claims (7)
1. a kind of circuit improving UV lamp service life, which is characterized in that including power module, amplifying circuit, controller, relay
Device, capacitor drive circuit and UV lamp, are connected with discharge circuit in the capacitor drive circuit, power module respectively to controller and
UV lamp provides power supply, and the contact of relay, capacitor drive circuit are sequentially connected in series in the current supply circuit of UV lamp, the coil of relay
It is connected by the signal control terminal of amplifying circuit and controller, discharge circuit is connected to capacitor drive circuit.
2. the circuit according to claim 1 for improving UV lamp service life, which is characterized in that capacitor drive circuit CBB
Capacitance is connected between UV lamp and relay contact.
3. the circuit according to claim 2 for improving UV lamp service life, which is characterized in that discharge circuit includes resistance list
Member, resistance unit are connected to CBB electric capacity both ends.
4. the circuit according to claim 3 for improving UV lamp service life, which is characterized in that resistance unit includes and connects
Several resistance.
5. the circuit according to claim 4 for improving UV lamp service life, which is characterized in that resistance is metal oxide film electricity
Resistance.
6. improving the circuit of UV lamp service life according to claim 1-5 any one of them, which is characterized in that controller is
MCU。
7. a kind of method improving UV lamp service life, which is characterized in that including：
UV lamp is accessed into current supply circuit；
Capacitor drive circuit is serially connected in current supply circuit, UV lamp is depressured by capacitor drive circuit and is driven；
In the both ends of capacitor drive circuit and access discharge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839392.9A CN108770159A (en) | 2018-07-27 | 2018-07-27 | A kind of circuit and method improving UV lamp service life |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810839392.9A CN108770159A (en) | 2018-07-27 | 2018-07-27 | A kind of circuit and method improving UV lamp service life |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108770159A true CN108770159A (en) | 2018-11-06 |
Family
ID=63971578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810839392.9A Pending CN108770159A (en) | 2018-07-27 | 2018-07-27 | A kind of circuit and method improving UV lamp service life |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108770159A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169474A (en) * | 2001-12-03 | 2003-06-13 | Toshiba Corp | Power supply unit |
| CN201521813U (en) * | 2009-10-16 | 2010-07-07 | 钟若声 | LED efficient integrated energy-saving lamp |
| CN204668240U (en) * | 2015-05-06 | 2015-09-23 | 黄世勇 | A kind of accelerating relay is opened and is reduced the switching circuit of relay heating |
| CN105813353A (en) * | 2016-05-11 | 2016-07-27 | 广东好太太智能科技有限公司 | Protection circuit and method for intelligently eliminating impact of UV lamp |
| CN106783401A (en) * | 2016-12-30 | 2017-05-31 | 陆正平 | A kind of energy-saving resistance-capacitance depressurization relay drive circuit |
| CN208480020U (en) * | 2018-07-27 | 2019-02-05 | 广东好太太科技集团股份有限公司 | A kind of circuit improving UV lamp service life |
-
2018
- 2018-07-27 CN CN201810839392.9A patent/CN108770159A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003169474A (en) * | 2001-12-03 | 2003-06-13 | Toshiba Corp | Power supply unit |
| CN201521813U (en) * | 2009-10-16 | 2010-07-07 | 钟若声 | LED efficient integrated energy-saving lamp |
| CN204668240U (en) * | 2015-05-06 | 2015-09-23 | 黄世勇 | A kind of accelerating relay is opened and is reduced the switching circuit of relay heating |
| CN105813353A (en) * | 2016-05-11 | 2016-07-27 | 广东好太太智能科技有限公司 | Protection circuit and method for intelligently eliminating impact of UV lamp |
| CN106783401A (en) * | 2016-12-30 | 2017-05-31 | 陆正平 | A kind of energy-saving resistance-capacitance depressurization relay drive circuit |
| CN208480020U (en) * | 2018-07-27 | 2019-02-05 | 广东好太太科技集团股份有限公司 | A kind of circuit improving UV lamp service life |
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