CN2043800U - Full-automatic d.c.power supply without person on duty - Google Patents
Full-automatic d.c.power supply without person on duty Download PDFInfo
- Publication number
- CN2043800U CN2043800U CN 88212943 CN88212943U CN2043800U CN 2043800 U CN2043800 U CN 2043800U CN 88212943 CN88212943 CN 88212943 CN 88212943 U CN88212943 U CN 88212943U CN 2043800 U CN2043800 U CN 2043800U
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- voltage
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- power supply
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to the fully automatic unattended equipment of a direct-current electric source. An adjustable three-terminal integrated voltage regulator is adopted to constitute a charger, and the utility model has the functions that a storage battery is automatically charged in three methods of constant current, constant voltage and the trickle, that compensation is automatic according to the temperature changes of seasons, and that the electric source is automatically cut off in case of over-discharging, etc. In addition, the fully automatic unattended equipment of a direct-current electric source, which supplies electricity or stops supplying electricity to electric equipment, has the functions of automatic switching and no switching time interval, and various state displaying functions, which ensures that the electric equipment such as a stored-program control exchange, a microcomputer, etc., dose not lose stored information in case of instant power failure, and improves the work quality of the electric equipment. The utility model, which provides a forty-eight-volt direct-current electric source, can be used for a long period, with unattended operation.
Description
The utility model relates to a kind of DC power supply device, does not particularly automatically have the switching time of DC power supply device at interval.
In the prior art, as disclose on No. the 51st, Chinese utility model patent communique the 3rd volume application be 87201161 storage battery charge and discharge automatic control equipment, this automatic control equipment by transformer, rectifier, charger, overdischarge automatic shutdown circuit, status displays and batteries are formed.In this device, charger adopts the transistor networking.And use voltage sample circuit, and state is kept memory circuit, and electronic amplification circuit carries out charge and discharge to storage battery and controls automatically.Its shortcoming is to carry out constant voltage charge, can't carry out constant current and trickle charge, has influenced the quality to the power consumption equipment power supply; And this automatic control equipment charging voltage can not compensate storage battery along with the variation of seasonal temperature; This automatic control equipment does not possess power supply or outage automatic shifting function between storage battery and the power consumption equipment simultaneously in addition.So this automatic control equipment can't be accomplished long-term the use and unattended operation.It is 86203470 threshold voltage power supply automatic switching device that and for example Chinese utility model patent communique the 3rd volume discloses application number for No. 25.Though this device has and power consumption equipment power supply or when outage automatic switching function, this device does not possess automatic charge function, so that this device can not be accomplished is full-automatic unmanned on duty.
The purpose of this utility model is to overcome the above-mentioned shortcoming of prior art, providing a kind of can control charging current, voltage and trickle, the influence that not changed by seasonal temperature, possess simultaneously to charge in batteries or battery discharging and control automatically, and power between storage battery and the power consumption equipment or cut off the power supply and to automatically switch, and there is not the switching time of DC power supply device full-automatic unmanned on duty at interval.
DC power supply device of the present utility model, its solution is: the charger of this DC power supply device adopts can change the adjustable three terminal integrated voltage stabilizer that carries out constant current, constant voltage and three kinds of operating state chargings of trickle automatically; Between adjustable three terminal integrated voltage stabilizer and batteries circuit, be provided with the constant voltage, the trickle charge control circuit that constitute feedback loop; Be in series with one on constant voltage, the trickle charge control circuit and be used for the thermistor that seasonal temperature compensates; Between adjustable three terminal integrated voltage stabilizer and batteries circuit, be provided with the constant current charge control circuit that constitutes feedback loop; Be provided with power supply or outage automatic switching control circuit between batteries and power consumption equipment, control switching circuit directly is connected with the lead of logical control signal with power consumption equipment.
When alternating current is powered, via adjustable three terminal integrated voltage stabilizer batteries is charged by the direct current after transformation, the rectification.At this moment, the constant current charge control circuit carries out current limliting, adjustable three terminal integrated voltage stabilizer is controlled charging voltage by specified constant current charge, constant voltage, trickle charge control circuit, when accumulator battery voltage reaches sufficient peak, constant voltage, trickle charge control circuit will be experienced this situation and make adjustable three terminal integrated voltage stabilizer enter trickle floating charge state.The seasonal temperature compensating resistance compensates automatically to the temperature characterisitic that batteries requires, and makes constant voltage, trickle charge reach the load voltage value of charging.Adjustable like this three terminal integrated voltage stabilizer just can charge by constant current, constant voltage, three kinds of operating state accumulators of trickle group automatically.
When battery charging reaches rated voltage, this batteries then is in standby operating state, in order to compensate batteries owing to the capacitance loss that self discharge caused, adjustable three terminal integrated voltage stabilizer is subjected to the control of constant voltage, trickle charge control circuit to be transformed into the trickle floating charge that batteries is carried out little electric current automatically.Floating charge voltage is controlled by constant voltage, trickle charge control circuit, so that batteries neither can overcharge and often remain on the full capacity state.
When alternating current had a power failure, power consumption equipment was passed to control switching circuit by the lead that is connected with control switching circuit with power-off signal, and control switching circuit moves immediately and starts batteries and powers to power consumption equipment.Otherwise, then controlling batteries stops power supply, when just having a power failure, because power consumption equipment power supply energy retardation a period of time itself, and the control switching circuit that the utility model adopts switches required time ratio power consumption equipment retardation supplying time weak point, so form no switching time at interval.Powered for a long time to power consumption equipment when batteries, when accumulator battery voltage drops to a certain critical value, the overdischarge automatic shutdown circuit will cut off output automatically, with protection with prolong the useful life of batteries.
Because the utility model has adopted adjustable three terminal integrated voltage stabilizer, charging to batteries is provided with the constant current charge control circuit, constant voltage, trickle charge control circuit, and make control switching circuit controlled by power consumption equipment, also adopted overdischarge to cut off automatically simultaneously, so the utility model DC power supply device can accomplish to discharge and recharge automatic control fully, do not overcharge and cross and put, power supply or outage are automaticallyed switch, no switching time at interval, power supply long service life, but long-term work unattended operation.
Fig. 1 is a block diagram of the present utility model.
(1) be that transformer, (2) are that rectifier, (3) are that charger, (4) are that constant current charge control circuit, (5) are that constant voltage, trickle charge control circuit, (6) are that seasonal temperature compensation thermistor, (7) are that batteries, (8) are that overdischarge automatic shutdown circuit, (9) are control switching circuits.
Fig. 2 is an embodiment circuit diagram of the present utility model.
Fig. 3 is an embodiment element installation diagram of the present utility model.
Fig. 4 is an embodiment panel layout of the present utility model.
Solution of the present utility model can further specify in conjunction with Fig. 2: the DC power supply device of being somebody's turn to do full-automatic no switching time of interval among Fig. 2 is made up of transformer B, bridge rectifier BG1～4, charger, constant current charge control circuit, constant voltage and trickle charge control circuit, seasonal temperature compensation thermistor, overdischarge automatic shutdown circuit, power supply or outage automatic switching control circuit, status displays and batteries.
Wherein, charger adopts adjustable three terminal integrated voltage stabilizer JC, an adjustable three terminal integrated voltage stabilizer JC to go up and di-voltage stabilizing didoe BG5, BG6, in order to the voltage difference at restriction three terminal integrated voltage stabilizer JC two ends.Between adjustable three terminal integrated voltage stabilizer JC and batteries circuit the constant current charge control circuit is set; the constant current charge control circuit adopts a high-voltage three-pole pipe BG7 and detects resistance R 4 and constitutes; between adjustable three terminal integrated voltage stabilizer JC and batteries circuit, be provided with by the divider resistance R6 of a high-voltage three-pole pipe BG8, regulation voltage, constant voltage, the trickle charge control circuit that shunt resistance R8 is constituted; high-voltage three-pole pipe BG8 goes up and di-is only protected diode BG9, BG10, series connection one thermistor RM on constant voltage, trickle charge control circuit.
By relay J 1, capacitor C 3, one group of voltage stabilizing didoe BG14～16, the overdischarge automatic shutdown circuit that resistance R 13 is formed can protect automatically because the damage of the batteries that overdischarge causes of batteries.
The automatic switching control circuit of being made up of supersensitive relay J2, capacitor C 4, series resistance R17 directly links to each other with power consumption equipment with lead, can receive the power-off signal that power consumption equipment provides, and start batteries immediately and power to power consumption equipment, otherwise, then disconnect batteries to stop power supply.
The unilateral diode BG13 that connects on the charging circuit of adjustable three terminal integrated voltage stabilizer JC and batteries, batteries is to the back discharge of main circuit when preventing that alternating current from interrupting.
On charge-discharge circuit, be parallel with green luminotron BG11 respectively, show charge condition; Green luminotron BG22 shows discharge condition; Voltmeter CB, display voltage, red luminotron BG12, whether indication fuse fuses.
The operating state of present embodiment is: when alternating current is powered, batteries is charged via adjustable three terminal integrated voltage stabilizer JC by the direct current after transformation, the rectification.Under charged state, the high-voltage three-pole pipe BG7 of constant current charge control circuit is able in various degree conducting by the memory capacity of batteries, and by detecting resistance R 4 charging current is controlled at required steady state value.High-voltage three-pole pipe BG8 in constant voltage, the trickle charge control circuit is owing to the charging current of the E-B utmost point is able to conducting, so R8 is in parallel with R6, go up the output voltage of resistance R7 and the definite adjustable three terminal integrated voltage stabilizer JC of thermistor Rm thereby connect again.Wherein the effect of thermistor RM is that temperature characterisitic by storage battery compensates, and the voltage of batteries is remained in the optimum range.
When batteries reaches optimum voltage, BG8 will experience and begin and end, and R8 and R6 disconnect, and have prevented to overcharge.As time goes on, because of can making voltage, the self-discharge phenomenon of batteries descends, at this moment, adjustable three terminal integrated voltage stabilizer JC is subjected to constant voltage, trickle charge control circuit to control and change trickle floating charge state automatically over to, and the voltage of batteries is often remained in the optimum range.The nominal voltage value of batteries is 48 volts in the present embodiment.
When alternating current is powered, power consumption equipment is supplied with direct current with the rectifying installation of itself, and export a direct current signal of telecommunication to control switching circuit, at this moment this dc signal is wrapped through the line that series resistance R17 is added to relay J 2, after J2 inhales and moves, normally opened contact will be exported disconnection, and when the alternating current power supply was arranged, batteries was not powered to power consumption equipment like this.When alternating current had a power failure, power consumption equipment does not have dc signal to be wrapped through the line that series resistance R17 is added to relay J 2, and at this moment J2 discharges, and the back contact of J2 is connected, and batteries promptly begins to power to power consumption equipment.After alternating current recovered, J2 is adhesive again, and back contact disconnects, and makes batteries change charged state automatically over to.When alternating current has a power failure suddenly, but because the direct current retardation of power consumption equipment supply more than 100 milliseconds itself.And control switching circuit of the present utility model has been selected highly sensitive relay for use, only 5～8 milliseconds of its operate times, has therefore formed no switching time at interval.
When alternating current had a power failure, batteries was in the process of power consumption equipment power supply, and voltage relay J 1 suction just often is moving, and normally opened contact is connected, and back contact disconnects.When battery discharge time long; when voltage drops to a certain setting; the electric current that the relay J of flowing through 1 line is wrapped will drop to a certain critical value; at this moment the normally opened contact of J2 disconnects; and back contact is connected; thereby cut off the output of batteries, be not damaged and prolonged its life-span with the protection batteries.
Claims (4)
1, a kind of full-automatic no switching time DC power supply device at interval, be made up of transformer (1), rectifier (2), charger (9), overdischarge automatic shutdown circuit (8), control switching circuit (9), status display circuit (10) and batteries (7), it is characterized in that: charger (3) adopts can change the adjustable three terminal integrated voltage stabilizer that carries out constant current, constant voltage and three kinds of operating state chargings of vortex flow automatically; Between adjustable three terminal integrated voltage stabilizer and batteries (7), be provided with constant voltage and the trickle charge control circuit (5) formed by high-voltage three-pole pipe, divider resistance and shunt resistance that constitute feedback loop; Between adjustable three terminal integrated voltage stabilizer and batteries (7), be provided with constitute feedback loop by the high-voltage three-pole pipe and detect the constant current charge control circuit (4) that resistance is formed; Be provided with the control switching circuit (9) that supersensitive relay, capacitor and resistance are formed between batteries (7) and power consumption equipment, it directly is connected with the lead of logical control signal with power consumption equipment.
2, DC power supply device according to claim 1 is characterized in that: be parallel with one group of voltage stabilizing didoe on the adjustable three terminal integrated voltage stabilizer.
3, DC power supply device according to claim 1 is characterized in that: be in series with one on constant voltage and the trickle charge control circuit (5) and be used for the thermistor (6) that seasonal temperature compensates.
4, DC power supply device according to claim 1 is characterized in that: be parallel with one group of protection diode on the high-voltage three-pole pipe in constant voltage and the trickle charge control circuit (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212943 CN2043800U (en) | 1988-05-28 | 1988-05-28 | Full-automatic d.c.power supply without person on duty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212943 CN2043800U (en) | 1988-05-28 | 1988-05-28 | Full-automatic d.c.power supply without person on duty |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2043800U true CN2043800U (en) | 1989-08-30 |
Family
ID=4846186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88212943 Expired - Lifetime CN2043800U (en) | 1988-05-28 | 1988-05-28 | Full-automatic d.c.power supply without person on duty |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2043800U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334525C (en) * | 2004-06-28 | 2007-08-29 | 鸿富锦精密工业（深圳）有限公司 | USB power switch control circuit for mainboard |
| CN103645407A (en) * | 2013-11-28 | 2014-03-19 | 国网河南省电力公司鹤壁供电公司 | Direct-current low-voltage tester |
-
1988
- 1988-05-28 CN CN 88212943 patent/CN2043800U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334525C (en) * | 2004-06-28 | 2007-08-29 | 鸿富锦精密工业（深圳）有限公司 | USB power switch control circuit for mainboard |
| CN103645407A (en) * | 2013-11-28 | 2014-03-19 | 国网河南省电力公司鹤壁供电公司 | Direct-current low-voltage tester |
| CN103645407B (en) * | 2013-11-28 | 2016-08-31 | 国网河南省电力公司鹤壁供电公司 | A kind of direct-current low-voltage tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |