CN109067201A - Switching power supply for rain-proof and lightning protection engineering - Google Patents
Switching power supply for rain-proof and lightning protection engineering Download PDFInfo
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- CN109067201A CN109067201A CN201811267208.4A CN201811267208A CN109067201A CN 109067201 A CN109067201 A CN 109067201A CN 201811267208 A CN201811267208 A CN 201811267208A CN 109067201 A CN109067201 A CN 109067201A
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- power supply
- rain
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- 239000002184 metal Substances 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 20
- 238000001914 filtration Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 8
- 230000009466 transformation Effects 0.000 claims description 8
- 208000025274 Lightning injury Diseases 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000006837 decompression Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 229920006926 PFC Polymers 0.000 description 16
- 230000000694 effects Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
- H05K5/0234—Feet; Stands; Pedestals, e.g. wheels for moving casing on floor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/14—Mounting supporting structure in casing or on frame or rack
- H05K7/1422—Printed circuit boards receptacles, e.g. stacked structures, electronic circuit modules or box like frames
- H05K7/1427—Housings
- H05K7/1432—Housings specially adapted for power drive units or power converters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a switching power supply for rain-proof and lightning-proof engineering, wherein an internal circuit device is fixedly arranged in an outer shell and sealed by a bottom plate, so that the internal circuit device is prevented from being affected with damp due to rain wash, and meanwhile, a lower edge structure is arranged at the splicing part of the outer shell and the bottom plate, and the lower edge is matched with the edge of the bottom plate, so that the bottom plate and the outer shell are spliced more tightly, and the requirements of engineering sites with severe environment on facilities can be met.
Description
Technical field
The present invention relates to a kind of engineering Switching Power Supplies, are in particular a kind of rain-proof lightening protection engineering Switching Power Supplies.
Background technique
Switching Power Supply, also known as exchange type power, switch converters are a kind of high frequency device for converting electric energy.Switching Power Supply
It is using modern power electronics technology, the time ratio that control switch pipe turns on and off maintains the one kind stabilized the output voltage
Power supply.Currently, Switching Power Supply is widely used in industrial automatic control, military industry equipment, research equipment, LED illumination, industry control are set
The fields such as standby, communication apparatus, power equipment.
Industrial Switching Power Supply usually works outdoors because working environment is more severe, often because rain drop erosion or thunder and lightning are hit
Perforating causes Switching Power Supply damage, makes the reduction of its service life, while also increasing later maintenance cost.Existing Switching Power Supply exists
Waterproof measure is done on shell, but since Lock gate setting is excessively simple and crude, waterproof effect is not significant, and in addition there are parts
Lock gate makes shell sealing performance, and heat dissipation effect weakens significantly more preferably simultaneously, causes internal circuit device too late because radiating
When it is more easy to damage, and not up to improve Switching Power Supply service life effect.On the other hand, since Switching Power Supply is scientific
The setting of lightning protection measures, because the phenomenon that in thunder and lightning strong high input voltage to switching power circuit device, circuit being caused to be paralysed is sent out often
It is raw, in this way it is difficult to ensure that the safe and reliable operation of Switching Power Supply.
It can be seen that how to provide a kind of industrial Switching Power Supply with rain-proof lightning protection function becomes those skilled in the art
Member's technical problem urgently to be resolved.
Summary of the invention
In view of this, the present invention provides a kind of industrial Switching Power Supply with rain-proof lightning protection function, the Switching Power Supply
More it is able to satisfy requirement of the more severe industrial sites of environment to facility.
The technical scheme to solve the above technical problems is that a kind of rain-proof lightening protection engineering Switching Power Supply, including
Outer housing, bottom plate and internal circuit device, the outer housing are the cavity type structure of bottom opening, the bottom sides of the outer housing
Edge extends outward to form the lower edge coincideing with the bottom edge, and the lower edge is removable by metal fastener with the bottom edge
Connection is unloaded, the internal circuit device is fixedly installed in the cavity of the outer housing and seals by the bottom plate, described outer
The lead wire outlet for the internal circuit device and external equipment wiring is offered in the opposite two side walls of shell, it is described to draw
Line mouth to open up position corresponding with the wiring extraction location of the internal circuit device.
The beneficial effects of the present invention are: internal circuit device is fixedly mounted on inside outer housing and is sealed by bottom plate,
Internal circuit device is avoided to be made moist by rain drop erosion, while the position of outer housing and bottom plate split is provided with the knot of lower edge
Structure, lower edge and bottom edge coincide, and such bottom plate and outer housing split are closer, are more able to satisfy the more severe industrial field of environment
Requirement of the ground to facility.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the metal fastener includes metal fastener front end and metal fastener tail end, metal fastener front end and
Metal fastener tail end is fixedly connected, and the bottom plate is equipped with the card slot being adapted to metal fastener front end, the side of the lower edge
Edge position is equipped with the through-hole being adapted to metal fastener front end, and metal fastener front end passes through the through-hole in lower edge and is inserted into the card
In slot.
Beneficial effect using above-mentioned further scheme is that outer housing and bottom plate are clamped by the realization of metal fastener, disassembly side
Just, it convenient for the installation of internal circuit device and retracts.
Further, the metal fastener tail end is equipped with the crotch for preventing metal fastener and through-hole to be detached from.Crotch is set
The marginal position that metal fastener can be fastened in lower edge is set, such metal fastener is difficult to slide, connects stronger.
Further, the bottom plate is equipped with the heat release hole of multiple rows of strip.The setting of heat release hole can prevent internal circuit
Device radiates not in time and damages due to being sealed in outer housing and bottom plate.
Further, the bottom of the outer housing is equipped with multiple support legs for bottom plate to be isolated with ground.Support leg will
Entire Switching Power Supply is raised, and is made bottom plate far from ground, is prevented the rainwater on ground or other corrosive goods confrontation devices from impacting.
Further, multiple rows of radiating fin is equipped at the top of the outer housing.Radiating fin can increase dissipating at the top of outer housing
Heat area makes whole device better heat-radiation effect.
Further, sealing ring is equipped between the outer housing and the bottom plate, the sealing ring is foamed silica gel collision mat
Circle.The setting of sealing ring can make the junction sealing effect of bottom plate and outer housing, and more preferably rainwater is not easy to penetrate into out of through-hole.
Further, the internal circuit device includes lightning-protection module, current limliting module, rectification filtering module, pfc circuit module
And voltage transformation module,
The lightning-protection module inhibits high voltage caused by lightning stroke or surge, and the lightning-protection module and the current limliting module connect
It connects, for reducing the electric current in circuit, the current limliting module is connect the current limliting module with the rectification filtering module, described whole
The alternating voltage of input terminal is converted into unidirectional pulse DC voltage and filters out noise signal therein by stream filter module, described
Rectification filtering module is connect with the pfc circuit module, the pfc circuit module to the rectification filtering module treated electricity
Pressure carries out PFC, and the pfc circuit module is connect with the voltage transformation module, the voltage transformation module pair
Voltage after pfc circuit resume module carries out decompression processing.
Beneficial effect using above-mentioned further scheme be in internal circuit device be provided with lightning protection circuit, can prevent because
The high pressure that lightning stroke or surge occur damages circuit, improves the service life of circuit, and current limliting module cooperates lightning-protection module work,
It can achieve the effect of more preferably anti-excessive pressure damages；Pfc circuit module carries out PFC to the voltage in circuit, makes out
The output voltage in powered-down source is more stable.
Further, the pfc circuit module includes input detection unit, PFC control chip and exports detection unit, described
Input detection unit samples input voltage, obtains input using voltage；The input detection unit and the PFC are controlled
The input port of chip connects, and the PFC control chip is corrected the power factor of input sample voltage, the PFC control
The output end of coremaking piece is connect with the output detection unit, and the output detection unit is to the electricity after completing PFC
Pressure is sampled and is exported.Power Factor Correction Control can be carried out to the voltage in circuit in real time by controlling chip by PFC, be protected
The stabilization of voltage is demonstrate,proved.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of rain-proof lightening protection engineering Switching Power Supply overall structure diagram of the present invention；
Fig. 2 is the present invention a kind of outer housing and structural diagram of base plate of rain-proof lightening protection engineering Switching Power Supply；
Fig. 3 is a kind of internal circuit apparatus module composition block diagram of rain-proof lightening protection engineering Switching Power Supply of the present invention；
Fig. 4 is a kind of pfc circuit module composition block diagram of rain-proof lightening protection engineering Switching Power Supply of the present invention；
Fig. 5 is a kind of lightning-protection module internal circuit diagram of rain-proof lightening protection engineering Switching Power Supply of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows:
1, bottom plate, 11, card slot, 12, heat release hole, 2, outer housing, 21, lower edge, 211, through-hole, 22, support leg, 23, dissipate
Hot fin, 24, lead wire outlet, 3, internal circuit device, 31, lightning-protection module, 32, current limliting module, 33, rectification filtering module
, 34, pfc circuit module, 341, input detection unit, 342, PFC control chip, 343, output detection unit, 35, voltage
Conversion module, 4, metal fastener, 41, metal fastener front end, 42, metal fastener tail end.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of rain-proof lightening protection engineering Switching Power Supply is present embodiments provided, including outer housing 2,
Bottom plate 1 and internal circuit device 3, outer housing 2 are the cavity type structure of bottom opening, and the bottom margin of outer housing 2 extends outwardly
Form lower along 21, lower to pass through metal fastener 4 with 1 edge of bottom plate along 21 and be detachably connected, the internal circuit that coincide with 1 edge of bottom plate
Device 3 is fixedly installed in the cavity of outer housing 2 and is sealed by bottom plate 1, offers in the opposite two side walls of outer housing 2
For the lead wire outlet 24 of internal circuit device 3 and external equipment wiring, the lead wire outlet 24 opens up position and the internal electricity
The wiring extraction location of road device 3 is corresponding.
In some embodiments, multiple circles can be arranged according to the wiring extraction location of internal circuit device 3 in lead wire outlet 24
Shape aperture, slightly larger than the wiring diameter drawn, the corresponding internal circuit device 3 of each lead wire outlet 24 is connect in the aperture of aperture
Line can reduce extra gap as far as possible in this way and reserve, and ensure that the shell of entire Switching Power Supply is close with more preferably rain-proof
Seal effect.
In a specific embodiment, metal fastener 4 includes metal fastener front end 41 and metal fastener tail end 42, metal
Fastener front end 41 is fixedly connected with metal fastener tail end 42, and bottom plate 1 is equipped with the card slot 11 being adapted to metal fastener front end 41, under
Marginal position along 21 is equipped with the through-hole 211 being adapted to metal fastener front end 41, and metal fastener front end 41 passes through lower along 21
Through-hole 211 is inserted into card slot 11.
In some embodiments, metal fastener tail end 42 is curved equipped with preventing metal fastener 4 to be detached from through-hole 211
Hook.
In some embodiments, bottom plate 1 is equipped with the heat release hole 12 of multiple rows of strip.
In some embodiments, the bottom of outer housing 2 is equipped with multiple support legs 22 for bottom plate 1 to be isolated with ground.
In some embodiments, multiple rows of radiating fin 23 is equipped at the top of outer housing 2.
In some embodiments, sealing ring 5 is equipped between outer housing 2 and bottom plate 1, sealing ring 5 is foamed silica gel collision mat
Circle.
Referring to attached drawing 3, internal circuit device 3 includes lightning-protection module 31, current limliting module 32, rectification filtering module 33, PFC electricity
Road module 34 and voltage transformation module 35,
High voltage caused by 31 pairs of lightning-protection module lightning strokes or surge inhibits, and lightning-protection module 31 is connect with current limliting module 32, limit
Flow module 32 connect for reducing the electric current in circuit, current limliting module 32 with rectification filtering module 33, and rectification filtering module 33 will
The alternating voltage of input terminal is converted into unidirectional pulse DC voltage and filters out noise signal therein, rectification filtering module 33 with
Pfc circuit module 34 connects, and pfc circuit module 34 carries out PFC to treated the voltage of rectification filtering module 33,
Pfc circuit module 34 is connect with voltage transformation module 35, voltage transformation module 35 to treated the voltage of pfc circuit module 34 into
Row decompression processing.
Referring to attached drawing 4, pfc circuit module 34 includes that input detection unit 341, PFC control chip 342 and output detection are single
Member 343, input detection unit 341 samples input voltage, obtains input using voltage；Input detection unit 341 and PFC
The input port connection of chip 342 is controlled, PFC control chip 342 is corrected the power factor of input sample voltage, PFC
The output end for controlling chip 342 is connect with output detection unit 343, after exporting 343 pairs of completion PFCs of detection unit
Voltage sampled and exported.
It is the internal circuit diagram of lightning-protection module 31 referring to attached drawing 5, lightning-protection module 31 includes three varistors RV1, RV2
With RV3, three temperature safety tubes TF1, TF2 and TF3 and a ceramic gas discharge tube G, wherein varistor RV1 and temperature
Protective tube TF1 series connection is spent, series circuit both ends are the end L and N-terminal respectively, and varistor RV2 connects with temperature safety tube TF2,
Its series circuit is parallel to the end L (zero line), and varistor RV3 connects with temperature safety tube TF3, and series circuit is parallel to N
Hold (zero line side), series circuit that the one end ceramic gas discharge tube G and varistor RV2 and temperature safety tube TF2 are formed and
The series circuit of varistor RV3 and temperature safety tube TF3 composition is in parallel, other end ground connection.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (9)
1. a kind of rain-proof lightening protection engineering Switching Power Supply, which is characterized in that filled including outer housing (2), bottom plate (1) and internal circuit
It sets (3), the outer housing (2) is the cavity type structure of bottom opening, and the bottom margin of the outer housing (2) extends outward to form
The lower edge (21) coincideing with the bottom plate (1) edge, the lower edge (21) and the bottom plate (1) edge pass through metal fastener (4)
It is detachably connected, the internal circuit device (3) is fixedly installed in the cavity of the outer housing (2) and by the bottom plate
(1) it seals, offers in the opposite two side walls of the outer housing (2) and set for the internal circuit device (3) with outside
The lead wire outlet (24) of standby wiring, the wiring extraction position for opening up position and the internal circuit device (3) of the lead wire outlet (24)
Set correspondence.
2. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that the metal fastener
It (4) include metal fastener front end (41) and metal fastener tail end (42), metal fastener front end (41) and metal fastener tail end
(42) it is fixedly connected, the bottom plate (1) is equipped with the card slot (11) being adapted to metal fastener front end (41), the lower edge
(21) marginal position is equipped with the through-hole (211) being adapted to metal fastener front end (41), and metal fastener front end (41) passes through
Through-hole (211) in lower edge (21) is inserted into the card slot (11).
3. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 2, which is characterized in that the metal fastener tail
End (42) is equipped with the crotch for preventing metal fastener (4) and through-hole (211) to be detached from.
4. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that on the bottom plate (1)
Heat release hole (12) equipped with multiple rows of strip.
5. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that the outer housing (2)
Bottom be equipped with multiple support legs (22) for bottom plate (1) to be isolated with ground.
6. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that the outer housing (2)
Top is equipped with multiple rows of radiating fin (23).
7. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that the outer housing (2)
Sealing ring (5) are equipped between the bottom plate (1), the sealing ring (5) is foamed silica gel waterproof washer.
8. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 1, which is characterized in that the internal circuit dress
Setting (3) includes lightning-protection module (31), current limliting module (32), rectification filtering module (33), pfc circuit module (34) and voltage conversion
Module (35),
The lightning-protection module (31) inhibits high voltage caused by lightning stroke or surge, the lightning-protection module (31) and the limit
Flow module (32) connection, the current limliting module (32) for reducing the electric current in circuit, the current limliting module (32) with it is described whole
Filter module (33) connection is flowed, the alternating voltage of input terminal is converted into unidirectional pulse direct current by the rectification filtering module (33)
Voltage simultaneously filters out noise signal therein, and the rectification filtering module (33) connect with the pfc circuit module (34), described
Pfc circuit module (34) carries out PFC, the pfc circuit to the rectification filtering module (33) treated voltage
Module (34) is connect with the voltage transformation module (35), and the voltage transformation module (35) handles pfc circuit module (34)
Voltage afterwards carries out decompression processing.
9. a kind of rain-proof lightening protection engineering Switching Power Supply according to claim 8, which is characterized in that the pfc circuit mould
Block (34) includes input detection unit (341), PFC control chip (342) and output detection unit (343), the input detection
Unit (341) samples input voltage, obtains input using voltage；The input detection unit (341) and the PFC are controlled
The input port of coremaking piece (342) connects, and PFC control chip (342) carries out school to the power factor of input sample voltage
Just, the output end of PFC control chip (342) is connect with the output detection unit (343), the output detection unit
(343) voltage after completion PFC is sampled and is exported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267208.4A CN109067201A (en) | 2018-11-12 | 2018-11-12 | Switching power supply for rain-proof and lightning protection engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267208.4A CN109067201A (en) | 2018-11-12 | 2018-11-12 | Switching power supply for rain-proof and lightning protection engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109067201A true CN109067201A (en) | 2018-12-21 |
Family
ID=64767601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811267208.4A Withdrawn CN109067201A (en) | 2018-11-12 | 2018-11-12 | Switching power supply for rain-proof and lightning protection engineering |
Country Status (1)
| Country | Link |
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| CN (1) | CN109067201A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112202055A (en) * | 2020-10-29 | 2021-01-08 | 广东稳峰电力科技有限公司 | Surge protection switch cabinet |
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| KR100901438B1 (en) * | 2009-02-02 | 2009-06-08 | (주)유니온전자통신 | Fly-back type power supply enhanced pfc for led lighting unit |
| CN102055303A (en) * | 2009-10-27 | 2011-05-11 | 胡建龙 | Waterproof power supply |
| CN201589156U (en) * | 2010-01-15 | 2010-09-22 | 佛山市托维环境亮化工程有限公司 | LED street lamp with lightning protection function |
| CN101950956A (en) * | 2010-11-03 | 2011-01-19 | 英利能源（中国）有限公司 | Lightning-proof electric control device of photovoltaic power generation system |
| CN202697094U (en) * | 2012-07-18 | 2013-01-23 | 深圳茂硕新能源技术研究院有限公司 | Waterproof structure for outdoor switching power supply |
| CN204578340U (en) * | 2015-03-04 | 2015-08-19 | 常州首普电源科技有限公司 | A kind of shell of Switching Power Supply |
| CN206807267U (en) * | 2017-05-24 | 2017-12-26 | 北京稳固得电子有限公司 | A kind of digital power module installation housing with clamping apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112202055A (en) * | 2020-10-29 | 2021-01-08 | 广东稳峰电力科技有限公司 | Surge protection switch cabinet |
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