CN201290015Y - Intelligent DC screen device - Google Patents
Intelligent DC screen device Download PDFInfo
- Publication number
- CN201290015Y CN201290015Y CNU200820177111XU CN200820177111U CN201290015Y CN 201290015 Y CN201290015 Y CN 201290015Y CN U200820177111X U CNU200820177111X U CN U200820177111XU CN 200820177111 U CN200820177111 U CN 200820177111U CN 201290015 Y CN201290015 Y CN 201290015Y
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses an intelligent-type direct current cabinet device comprising a charging system. The charging system comprises a control-drive circuit, a main power circuit of a charger and a battery. The direct current cabinet device further comprises a battery temperature compensation unit which is used for adjusting the charging voltage of a storage battery according to different environmental temperatures so as to keep the battery in the best condition. The utility model reduces the adverse effects on a VRLA (valve regulated lead acid) battery caused by environmental temperature.
Description
Technical field
The utility model belongs to DC power supply panel structure-design technique field, is specifically related to a kind of intelligent DC screen device.
Background technology
Direct current cabinet is to be widely used in waterpower, thermal power plant; all kinds of transformer stations and other use user's (as petrochemical industry, mine, railway etc.) of DC equipment; for signalling arrangement, protection, automatics, emergency lighting and circuit breaker branch, closing operation provide DC power supply; and under the situation that externally alternating current interrupts, assurance is continued to provide the visual plant of DC power supply by back-up source-storage battery.The reliability of direct current cabinet, fail safe directly have influence on reliability, the fail safe of power system power supply.The heart of direct current cabinet is a storage battery, and the maintenance of storage battery being carried out science is the core work of direct current cabinet.
At present, the storage battery that is applied in the direct current cabinet is valve controlled sealed lead-acid accumulator mostly.Ambient temperature has certain influence to the capacity of this kind battery.When ambient temperature departs from normal temperature and when raising, battery moisture content scattered and disappeared, strengthened electric liquid concentration.
In addition, signals collecting for direct current cabinet, the aspects such as control of direct current cabinets such as fault-signal processing, generally adopted overvoltage relay in the past, under voltage relay, the insulating monitoring relay, multiple signal relay such as flashing relay is judged the control busbar voltage in the direct current cabinet, charging voltage, whether magnitudes of voltage such as cell voltage are within normal range of operation, whether bus has the signal of ground connection situation generation to handle the major failure signal of direct current cabinet, adopt this mode to need a plurality of and multiple relay to finish these functions, the circuit in direct current cabinet connects complicated simultaneously, the connection lead is too much etc.This control mode just causes the cost of direct current cabinet too high, and assembling process wastes time and energy, the complicated fallibility of assembly technology
The utility model content
The purpose of this utility model provides a kind of intelligent DC screen device that reduces ambient temperature for the adverse effect of valve controlled sealed lead-acid accumulator as far as possible.
Realize a kind of intelligent DC screen device of the utility model purpose, comprise charging system, described charging system comprises control Driver Circuit, charger master power circuit, battery and is used for according to different ambient temperatures charge in batteries voltage being done corresponding adjustment is in optimum state with the guarantee battery battery temperature compensation unit.
In the technique scheme, described battery temperature compensation unit comprises the temperature sensor that is used for the testing environment temperature.
In the technique scheme, also comprise the voltage monitor of real-time monitoring accumulator voltage.
In the technique scheme, also comprise battery overvoltage/undervoltage Alarm Unit.
In the technique scheme, also comprise battery excess temperature Alarm Unit, described battery excess temperature Alarm Unit comprises temperature sensor and the buzzer that is used to detect battery temperature.
In the technique scheme, also comprise control unit, described control unit comprises the voltage acquisition converting unit that is used for the nominal voltage equal proportion is converted to changing voltage; Be used for changing voltage and reference voltage are compared and export the voltage comparison unit of corresponding status signal; Be used for driving corresponding relay according to different status signals, and the driver element that status signal is exported in the mode of passive contact; Relay unit; The input of described voltage comparison unit is connected with voltage acquisition converting unit and reference voltage, and its output is connected with the input of driver element, and the output of described driver element is connected with relay unit.
In the technique scheme, described control unit also comprises the bridge balance amplifying unit whether the control bus that is used to judge the direct current cabinet device insulate ground connection, and it is connected with the input of driver element.
In the technique scheme, described relay unit comprises overvoltage relay, under voltage relay and insulating monitoring relay.
The good effect that the utlity model has:
(1) in the utility model, owing to be provided with battery temperature compensation unit at valve controlled sealed lead-acid accumulator, the system monitoring ambient temperature, automatically adjust battery charging voltage, also promptly battery charging voltage is adjusted and compensated according to the variation of ambient temperature, thereby satisfy the requirement of battery charge, guaranteed that battery can be in reliable and stable operating state for a long time.
(2) in the utility model, integrated easy charging conversion control circuit, and a plurality of voltage signals can be merged input, output signal is concentrated output, has both reduced the line in the direct current cabinet, has reduced the man-hour of assembling and the makeing mistakes property that has reduced assembly technology again.
(3) in the utility model, comprise battery excess temperature Alarm Unit, described battery excess temperature Alarm Unit comprises temperature sensor and the buzzer that is used to detect battery temperature; This battery excess temperature Alarm Unit can be warned user's battery temperature over range, reminds the user according to the actual temperature situation system to be moved and adjusts.
Description of drawings
Fig. 1 is that the device that the utility model proposes is applied in the position view in the system;
Fig. 2 is the structural representation of control unit in the utility model.
Be labeled as shown in the accompanying drawing: voltage acquisition converting unit 1, voltage comparison unit 2, driver element 3, relay unit 4, bridge balance amplifying unit 5.
Embodiment
(embodiment 1)
Fig. 1 is that the device that the utility model proposes is applied in the position view in the charging system, has shown a kind of embodiment of the present utility model.
The utility model provides a kind of intelligent DC screen device, comprise charging system, described charging system comprises control Driver Circuit, charger master power circuit, battery and is used for according to different ambient temperatures charge in batteries voltage being done corresponding adjustment is in optimum state with the guarantee battery battery temperature compensation unit.Described battery temperature compensation unit comprises the temperature sensor that is used for the testing environment temperature.
Fig. 1 is that the device that the utility model proposes is applied in the position view in the charging system.Whole charging systems comprises temperature compensation means, control Driver Circuit, charger master power circuit and battery.Input signal is the battery context temperature, and V1 is the temperature-compensating superposed signal, and V2 is the charger output voltage feedback signal.Described battery context temperature input temp compensation arrangement, produce temperature-compensating superposed signal V1, described temperature-compensating superposed signal V1 and described charger output voltage feedback signal V2 obtain described signal V3 after relatively, described signal V3 produces corresponding power tube drive signal by described control Driver Circuit, this drive signal is by driving the power tube of described charger master power circuit, and the charging voltage that obtains having temperature-compensating charges for described battery.Described temperature-compensating superposed signal V1 becomes big behind the charger steady operation, and then Shu Chu charging voltage increases, and on the contrary, described temperature-compensating superposed signal V1 diminishes, and then charging voltage reduces.
The advantage of present embodiment is: owing to the battery temperature compensation unit that is provided with at valve controlled sealed lead-acid accumulator, the system monitoring ambient temperature, automatically adjust battery charging voltage, also promptly battery charging voltage is adjusted and compensated according to the variation of ambient temperature, thereby satisfy the requirement of battery charge, guaranteed that battery can be in reliable and stable operating state for a long time.
(embodiment 2)
Present embodiment is substantially the same manner as Example 1, difference is: also comprise voltage monitor, battery overvoltage/undervoltage Alarm Unit and the battery excess temperature Alarm Unit of real-time monitoring accumulator voltage, described battery excess temperature Alarm Unit comprises temperature sensor and the buzzer that is used to detect battery temperature.
The advantage of present embodiment is: described battery excess temperature Alarm Unit comprises temperature sensor and the buzzer that is used to detect battery temperature; This battery excess temperature Alarm Unit can be warned user's battery temperature over range, reminds the user according to the actual temperature situation system to be moved and adjusts.
(embodiment 3)
Fig. 2 is the structural representation of control unit in the utility model, has shown second kind of embodiment of the present utility model.
Present embodiment is substantially the same manner as Example 1, and difference is: also comprise control unit, described control unit comprises the voltage acquisition converting unit 1 that is used for the nominal voltage equal proportion is converted to changing voltage; Be used for changing voltage and reference voltage are compared and export the voltage comparison unit 2 of corresponding status signal; Be used for driving corresponding relay according to different status signals, and the driver element 3 that status signal is exported in the mode of passive contact; Relay unit 4; Be used to judge the bridge balance amplifying unit 5 whether the control bus of direct current cabinet device insulate ground connection; The input of described voltage comparison unit is connected with voltage acquisition converting unit and reference voltage, and its output is connected with the input of driver element, and the output of described driver element is connected with relay unit.Described bridge balance amplifying unit 5 is connected with the input of driver element 3.Described relay unit 4 comprises overvoltage relay, under voltage relay and insulating monitoring relay.
Voltage acquisition converting unit 1, it is converted to the circuit comparative voltage with charging voltage, control busbar voltage, battery tension equal proportion in the direct current cabinet; Voltage comparison unit 2, it will be changed comparative voltage and reference voltage and compare that back output charging voltage is too high, charging voltage is low excessively, the control busbar voltage is too high, the control busbar voltage is low excessively, battery tension is too high, battery tension is crossed voltage fault signals such as low, judge simultaneously whether charging voltage reaches the even charging voltage set point, then export the floating charge switching signal if reach; Bridge balance amplifying unit 5, it will be between positive negative control bus inserts a balanced bridge, if the phenomenon of ground connection appears in positive and negative busbar, electric bridge will occur uneven, will degree of unbalance amplify the back and will compare with set point, if exceed set point then export the insulation fault signal.
Driver element 3, it judges signal condition rear drive output relay, and status signal is exported in the mode of passive contact.The input of voltage comparison unit 2 is connected with voltage acquisition converting unit 1 and reference voltage, and its output is connected with the input of driver element 3, and the output of described driver element 3 is connected with relay unit 4.
The detection principle of present embodiment is, by detecting charging voltage, battery tension, the control busbar voltage in the direct current cabinet, compare with the setting upper lower limit value of each voltage, when if each voltage of generation exceeds set point, then drive too high with the mode output voltage of passive contact, the excessively low fault-signal of corresponding fault output relay.By the bridge balance principle, between positive negative control bus, add a balanced bridge, when the ground connection situation appears in positive and negative control mother, bridge balance is destroyed, the electric bridge degree of unbalance is amplified the back to be compared with reference voltage, if earth resistance drives the insulation fault relay when being lower than set point, export the insulation fault signal in the mode of passive contact after the actuating of relay.By detecting the charging voltage in the direct current cabinet, and set the even charging voltage value relatively, if drive the charging switching relay when being higher than set point, export the floating charge switching signal in the mode of passive contact after the actuating of relay.Realize flash function by positive excited oscillation circuit, judge promptly whether the flash of light bus has load to insert, if there is load to insert, then glistening has electric current with generation in the bus, current signal conversion back is produced oscillator signal drive the flash of light control relay, the mode with passive contact after the actuating of relay is exported flash control signal.
The advantage of present embodiment is:
(1) present embodiment can accurately be gathered charging voltage, control busbar voltage, the battery tension in the direct current cabinet, and can judge that each voltage is whether in the normal voltage scope of setting, if voltage exceeds the upper lower limit value of setting, then the power transfer relay closure of correspondence in the device is exported fault illuminated facia or the malfunction indicator lamp work indication that drives in the direct current cabinet in the mode of passive contact.Device judges simultaneously whether the control bus of direct current cabinet has the situation of insulation ground connection to take place, if control busbar grounding resistance is lower than set point, fault illuminated facia or the malfunction indicator lamp work indication that drives in the direct current cabinet exported in the then insulation fault actuating of relay in the device in the mode of passive contact.Device also judge direct current cabinet to storage battery all fill process the time, whether even charging voltage reaches set point, if reach then the floating charge actuating of relay in the device, exports the charging device that drives in the direct current cabinet in the mode of passive contact and transfers floating charge state to by all filling state; Device also has the flashing relay function.
(2) because integrated easy charging conversion control circuit, and a plurality of voltage signals can be merged input, output signal is concentrated output, has both reduced the line in the direct current cabinet, has reduced the man-hour of assembling and the makeing mistakes property that has reduced assembly technology again.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (8)
1, a kind of intelligent DC screen device comprises charging system, and described charging system comprises control Driver Circuit, charger master power circuit and battery; It is characterized in that:
Comprise that also being used for according to different ambient temperatures charge in batteries voltage being done corresponding adjustment is in the battery temperature compensation unit of optimum state to ensure battery.
2, intelligent DC screen device according to claim 1 is characterized in that: described battery temperature compensation unit comprises the temperature sensor that is used for the testing environment temperature.
3, intelligent DC screen device according to claim 1 is characterized in that: the voltage monitor that also comprises real-time monitoring accumulator voltage.
4, intelligent DC screen device according to claim 1 is characterized in that: also comprise battery overvoltage/undervoltage Alarm Unit.
5, intelligent DC screen device according to claim 1 is characterized in that: also comprise battery excess temperature Alarm Unit, described battery excess temperature Alarm Unit comprises temperature sensor and the buzzer that is used to detect battery temperature.
6, intelligent DC screen device according to claim 1 is characterized in that: also comprise control unit, described control unit comprises the voltage acquisition converting unit that is used for the nominal voltage equal proportion is converted to changing voltage; Be used for changing voltage and reference voltage are compared and export the voltage comparison unit of corresponding status signal; Be used for driving corresponding relay according to different status signals, and the driver element that status signal is exported in the mode of passive contact; Relay unit; The input of described voltage comparison unit is connected with voltage acquisition converting unit and reference voltage, and its output is connected with the input of driver element, and the output of described driver element is connected with relay unit.
7, intelligent DC screen device according to claim 6 is characterized in that: described control unit also comprises the bridge balance amplifying unit whether the control bus that is used to judge the direct current cabinet device insulate ground connection, and it is connected with the input of driver element.
8, intelligent DC screen device according to claim 6 is characterized in that: described relay unit comprises overvoltage relay, under voltage relay and insulating monitoring relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820177111XU CN201290015Y (en) | 2008-11-05 | 2008-11-05 | Intelligent DC screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820177111XU CN201290015Y (en) | 2008-11-05 | 2008-11-05 | Intelligent DC screen device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201290015Y true CN201290015Y (en) | 2009-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820177111XU Expired - Fee Related CN201290015Y (en) | 2008-11-05 | 2008-11-05 | Intelligent DC screen device |
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| Country | Link |
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| CN (1) | CN201290015Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080759A (en) * | 2010-09-10 | 2013-05-01 | 三菱电机株式会社 | Overvoltage detecting device for energy storage module |
| CN109031155A (en) * | 2018-10-30 | 2018-12-18 | 北京普莱德新能源电池科技有限公司 | A kind of battery test system and method |
-
2008
- 2008-11-05 CN CNU200820177111XU patent/CN201290015Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103080759A (en) * | 2010-09-10 | 2013-05-01 | 三菱电机株式会社 | Overvoltage detecting device for energy storage module |
| CN109031155A (en) * | 2018-10-30 | 2018-12-18 | 北京普莱德新能源电池科技有限公司 | A kind of battery test system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20141105 |
|
| EXPY | Termination of patent right or utility model |