CN2142239Y - Quick switching over apparatus for double-alternating voltage power supply - Google Patents
Quick switching over apparatus for double-alternating voltage power supply Download PDFInfo
- Publication number
- CN2142239Y CN2142239Y CN 92209680 CN92209680U CN2142239Y CN 2142239 Y CN2142239 Y CN 2142239Y CN 92209680 CN92209680 CN 92209680 CN 92209680 U CN92209680 U CN 92209680U CN 2142239 Y CN2142239 Y CN 2142239Y
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- CN
- China
- Prior art keywords
- power supply
- power
- utility
- circuit unit
- quick switching
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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.)
- Expired - Fee Related
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Abstract
The utility model relates to a quick switching over apparatus for a power supply with double-alternating current, belonging to a quick switching over apparatus for a power supply in a power circuit. The utility model adopts modern electronic technology to sample the signal at the instant when the power supply is interrupted. The signal triggers and conducts through a bidirectional thyristor after the treatment of shaping, gating, discrimination and amplification, in order to put through a back-up power supply quickly and ensure the electric equipment not be interrupted during use. The utility model has the advantages of quick switching speed (not greater than 2 ms), reliable stabilization, no distortion in output waveform and automatic switch over. The utility model is suitable for the power supply system with high requirement and extremely short interruption time, such as computers, security equipment, thermodynamic instruments, central control system in chemical industry.
Description
The utility model belongs to power supply rapid switching device in the R51 power circuit by the IPC International Patent Classification.
Along with progress of science and technology; power consumption equipment is increasing; many power consumption equipments have strict requirement to power quality; the regulation that power supply is also had strictness break time; for example: hydraulic power portion once stipulated in the designing technique rules of thermal power plant; " when the normal charged system of AC power is adopted in the protective system in heat power loop, should be connected to the interchange uninterruptible power system that is not more than 5ms switching time." also stipulate: " the electronic computer power supply should be connected to the interchange uninterruptible power system that is not more than 5ms switching time.”
Because to the raising that power supply break time requires, all kinds uninterrupted power supply occurs in succession, mainly contains two types at present both at home and abroad, one is the ups power supply power mode, and it two switches supply power mode for the two-way AC power with relay.
Ups power is to be stand-by power supply with the storage battery, in the moment that Alternating Current Power Supply is interrupted, comes into operation with the inversion form, and power supply wave shape is a square wave, hold time and arrive dozens of minutes in a few minutes, and the price comparison costliness.
When switching the two-way AC power with relay, the time of switching is long, and poor reliability does not reach the requirement in the use sometimes.
More than the power supply of these two kinds of supply power modes, control power-supply system and important Thermal Meter power-supply system in the higher computer power supply system that can not meet the demands, security personnel's equipment electricity consumption origin system, the chemical reaction.
The purpose of this utility model is to adopt a kind of new device of the special development of modern electronic technology for the department that solves use two-way AC power changes fast, this device has that conversion speed is fast, reliable and stable, waveform does not distort, conversion automatically, make the two-way power supply standby each other, it can be used with various stable-pressure devices, becomes various continual stabilized voltage power supplys.
The technical solution of the utility model is made up of five circuit units.A, working power unit, B, sampling and shaping circuit unit, C, gating and discriminating amplifier circuit unit, D, triggering and conducting circuit unit, E, output show and the protective circuit unit.
The electronic devices and components of each circuit unit are installed on the bar printing circuit machine core board, and its circuit constitutes and sees accompanying drawing 3 circuit diagrams, the title specification of each electronic devices and components, the electronic devices and components detail list of seeing attached list.Machine core board is fixed on the base frame of device, on the panel of shell, left and right side input power supply indicator, left and right sides power supply output indicator, power output terminal, left and right sides power input line, base frame are housed respectively to be connected with cover screw with loam cake, after device came into operation, all automatic switchover need not anyly be operated.
Advantage of the present utility model and good effect are to adopt modern electronic technology, switch speed is fast, reliable and stable, output waveform does not distort, automatically switch, make the two-way power supply standby each other, can guarantee the application of strict computer power supply system, Thermal Meter power-supply system, security personnel's equipment electricity consumption origin system, chemical reaction central control system etc.
Fig. 1, double cross stream power supply rapid switching device outline drawing
Wherein 1, loam cake
2, left side power supply input indicator (redness) LED
1
3, left side power supply output indicator (green) LED
3
4, east power output indicator (green) LED
4
5, east power input indicator (redness) LED
2
6, export insurance silk base
7, power output terminal
8, left side power input line
9, east power incoming line
10, base frame
11, cover screw
Fig. 2, the main electronic devices and components of printed circuit machine core board installation site schematic diagram
Wherein 12, the left side power supply sampling transformer B that holds concurrently
1
13, the east power sampling transformer B that holds concurrently
2
14, rectifier QL
114a rectifier QL
2
15, pressurizer DY
1
16, filter C
116a filter C
2
17, rectifier QL
417a rectifier QL
5
18, pressurizer DY
2
19, filter C
519a filter C
6
20, rectifier QL
3
21, capacitor C
3
22, rectifier QL
6
23, capacitor C
4
24, sampling shaping integrated circuit (IC)
1-1
25, sampling shaping integrated circuit (IC)
1-2
26, sampling shaping integrated circuit (IC)
1-3
27, sampling shaping integrated circuit (IC)
1-4
(24-27 is four voltage comparator LM324N integrated circuit (IC)
1) be called for short: I
1
28, shaping integrated circuit (IC)
2-1
29, shaping integrated circuit (IC)
2-3
30, Rs latch IC
2-2
31, Rs latch IC
2-4
(28-31 is a four nor gate CD4001 integrated circuit (IC)
2Be called for short: I
2
32, integrated circuit (IC)
3-1
33, integrated circuit (IC)
3-2
(32-33 is four voltage comparator LM324N integrated circuit (IC)
3) be called for short: I
3
34, trigger isolator IC
4
35, trigger isolator IC
5
36, bidirectional triode thyristor BCR
1
37, bidirectional triode thyristor BCR
2
38, left side input fuse RD
2
39, right side input fuse RD
3
40, piezo-resistance Ry
41, isolate two utmost point villous themeda D
1
42, isolate two utmost point villous themeda D
2
43, printed circuit board (PCB)
44, printed circuit machine core board
(after on the printed circuit board (PCB) 43 electronic devices and components being housed, being machine core board)
45, base frame screw
Fig. 3 double cross stream power supply rapid switching device circuit diagram
A: working power unit
B: sampling and shaping circuit unit
C: gating and discriminating amplifier circuit unit
D: triggering and conducting circuit unit
E: output shows and the protective circuit unit
In conjunction with the accompanying drawings an embodiment of the present utility model is further described: after left side power input line (8), east power incoming line (9) are received on the duplicate supply respectively, if east power disconnects, at first drop into the left side power supply, electric current is through left side fuse (38) RD
2To transformer (12) B
1Divide the output of three tunnel low pressure after the step-down, the one tunnel through rectifier (14) QL
1, pressurizer (15) DY
1, filter (16) C
1, (16a) C
2, isolate diode (41) D
1To public direct-flow bus wire V
+, for this device provides 7, the 5V stable DC.Two the tunnel through rectifier (20) QL
3, capacitor (21) C
3Trigger power supply Va as the left side bidirectional triode thyristor after the filtering
1,+7V.Three the tunnel through rectifier (14a) QL
2Obtain the direct-flow signal voltage of pulsing after the rectification, deliver to sampling shaping integrated circuit (24) IC respectively
1-1In-phase input end because D
3Clamping action make IC
1-1The output perseverance is a logical one, passes through D simultaneously
4Signal voltage is delivered to IC
1-3Inverting input, at D
5Under the clamping action, IC
1-3Be output as logical zero, IC
1-1Output through IC
1-2To shaping integrated circuit (28) IC
2-1And IC
1-3Output through shaping integrated circuit (29) IC
2-3After send into Rs latch two inputs respectively, Rs latch (30) IC
2-2Output is output as " 1 ", Rs latch (31) IC
2-4Output is " 0 ", IC
2-2Output is through IC
3-1Send into triggering isolator (34) IC after differentiating amplification
4, make bidirectional triode thyristor (36) BCR
1Triggering and conducting, electric current is through RD
2To power output terminal (7), flow into power consumption equipment, left side power supply output indicator (3) LED
3Green light is bright.
After the left side power supply becomes working power, drop into east power again through right side input fuse (39) RD
3, transformer (13) B
2Three groups of low-tension supplies a road through rectifier (17) QL
4, pressurizer (18) DY
2, filter (19) C
5(19a) C
6, by isolating diode (42) D
2, arrive public direct current power source bus and left side through D
1The electric current of sending here converges, common integrated circuit (IC) power supply V as this device
+Two the tunnel through rectifier (22) QL
6, capacitor (23) C
4After the filtering as left side bidirectional triode thyristor (37) BCR
2Triggering power supply+7V stand-by.Three the tunnel through rectifier (17a) QL
5Obtain the pulsating direct current signal voltage after the rectification and be added to integrated circuit (IC)
1-3In-phase input end is at D
6Cause integrated circuit (IC) under the clamp
1-3Be output as logical one, because D
4, D
7Acting in conjunction makes signal be in dynamic equilibrium state.In case certain side signal voltage descends, be subjected to the opposite side voltage influence immediately and make the circuit upset.IC
1-3Output through IC
1-4, IC
2-3Deliver to IC after the shaping
2-4Input because the Rs latch circuit can not overturn, promptly the right side circuit becomes stand-by state.
Unexpected interruption of power supply or reduction, sampling circuit overturn, make Rs latch (31) IC rapidly on the left of a certain reason makes
2-4Be output as " 1 " integrated circuit (33) IC
3-2Be output as " 1 ", send into and trigger isolator (35) IC
5, make bidirectional triode thyristor (37) BCR
2Conducting, the RD of electric current on output fuse seat (6)
1, power output terminal (7) flows to power consumption equipment becomes working power.Even recover left side power supply with prestissimo this moment, because of latch no longer overturns, the left side power supply have to become stand-by power supply.
When using this device, as long as left and right side power input line (8) (9) is inserted respectively on the calibrated same-phase power supply terminal of two-way, power consumption equipment is connected on the power output terminal (7), the two-way power supply automaticallyes switch by this device, change-over time is less than 2 milliseconds, but bringing onto load long-time running, power-efficient reach more than 99%, and output waveform is sinusoidal wave.
The utility model structurally has loam cake (1), left and right side power supply input indicator (2,5), left and right side power supply output indicator (3,4), export insurance silk base (6), power output terminal (7) are housed thereon, from two holes of loam cake (1) side, draw left and right side power input line (8,9) electronic devices and components and be assembled on the printed circuit board (PCB) (43), constituted printed circuit machine core board (44), be connected on the base frame (10) with four base frame screws (45).With four cover screws (11) loam cake (10) is connected with base frame (10).Base frame (10) is made of plastic.
Claims (3)
1; one by loam cake (1); left and right sides power input line (8; 9); left and right sides power supply input indicator (2; 5); left and right sides power supply output indicator (3; 4); export insurance silk base (6); base frame (10); the double cross stream power supply rapid switching device that cover screw (11) is formed; it is characterized in that: a bar printing circuit machine core board (44) is housed on base frame (10), working power unit (A) is housed on printed circuit central layer (44); sampling and shaping circuit unit (B); gating and discriminating amplifier circuit unit (C); triggering and conducting circuit unit (D); output shows and protective circuit unit (E).
2, double cross stream power supply rapid switching device as claimed in claim 1 is characterized in that: on the power subsystem (A) on the printed circuit machine core board (44) isolating diode D is housed
1(41), D
2(42).
3, double cross stream power supply rapid switching device as claimed in claim 1 is characterized in that: be equipped with on the triggering and conducting circuit unit (D) on the printed circuit machine core board (44) and trigger isolator IC
4(34), IC
5(35), bidirectional triode thyristor BCR
1(36), BCR
2(37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209680 CN2142239Y (en) | 1992-05-12 | 1992-05-12 | Quick switching over apparatus for double-alternating voltage power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209680 CN2142239Y (en) | 1992-05-12 | 1992-05-12 | Quick switching over apparatus for double-alternating voltage power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2142239Y true CN2142239Y (en) | 1993-09-15 |
Family
ID=33762821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92209680 Expired - Fee Related CN2142239Y (en) | 1992-05-12 | 1992-05-12 | Quick switching over apparatus for double-alternating voltage power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2142239Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100370665C (en) * | 2004-04-07 | 2008-02-20 | 北京博恩达特商用技术有限公司 | Automatic double-path electric coverting cabinet with phase-sequence monitor |
| CN1879273B (en) * | 2003-09-12 | 2010-12-08 | 通用电气公司 | Automatic transfer switch and protection device |
| CN101408755B (en) * | 1996-12-03 | 2011-01-26 | 株式会社东芝 | Electric power system protection and control system and distributed control system |
| CN106130176A (en) * | 2016-08-29 | 2016-11-16 | 苏州工业园区科佳自动化有限公司 | A kind of band lightning protection miniature double loop power supply switch |
| CN106406490A (en) * | 2016-08-28 | 2017-02-15 | 广西小草信息产业有限责任公司 | Operation maintenance system of computer power supply |
-
1992
- 1992-05-12 CN CN 92209680 patent/CN2142239Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101408755B (en) * | 1996-12-03 | 2011-01-26 | 株式会社东芝 | Electric power system protection and control system and distributed control system |
| CN1879273B (en) * | 2003-09-12 | 2010-12-08 | 通用电气公司 | Automatic transfer switch and protection device |
| CN100370665C (en) * | 2004-04-07 | 2008-02-20 | 北京博恩达特商用技术有限公司 | Automatic double-path electric coverting cabinet with phase-sequence monitor |
| CN106406490A (en) * | 2016-08-28 | 2017-02-15 | 广西小草信息产业有限责任公司 | Operation maintenance system of computer power supply |
| CN106130176A (en) * | 2016-08-29 | 2016-11-16 | 苏州工业园区科佳自动化有限公司 | A kind of band lightning protection miniature double loop power supply switch |
| CN106130176B (en) * | 2016-08-29 | 2018-07-17 | 苏州工业园区科佳自动化有限公司 | A kind of miniature double loop power supply switch of band lightning protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |