CN205385320U - Direct current system rectifier - Google Patents
Direct current system rectifier Download PDFInfo
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- CN205385320U CN205385320U CN201620130659.3U CN201620130659U CN205385320U CN 205385320 U CN205385320 U CN 205385320U CN 201620130659 U CN201620130659 U CN 201620130659U CN 205385320 U CN205385320 U CN 205385320U
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Abstract
The utility model discloses a direct current system rectifier, rectifier include alternating current -direct current conversion module, direct current output module A, direct current output module B voltage current detection module temperature acquisition module, the load of direct current output module A lug connection, direct current output module B connects direct current system's battery, be equipped with the unilateral conduction device between direct current output module B and the direct current output module A, when direct current output module A disappearance direct current output, the battery on the direct current output module B is supplied power to the load, direct current output module B contains PWM module, independent CPU module, interface module, voltage current detection module, temperature acquisition module and interface module all are connected with the CPU module. Adopt the utility model discloses the direct current system rectifier technique that realizes can make whole direct current system possess higher security, reliability and longer life.
Description
Technical field
This utility model relates to straight-flow system technical field, is specifically related to a kind of straight-flow system commutator.
Background technology
Straight-flow system is widely used in the every field of communication, information processing.Traditional straight-flow system is mainly made up of commutator (charger) and accumulator, and in actual use, accumulator is power supply in support, serves as particularly important role, is the heart of whole straight-flow system.
For decades, traditional straight-flow system is all without revolutionary technological progress.Most crucial reason is in that the commutator constituted as straight-flow system is never organically combined with accumulator, and commutator manufacturing enterprise is often only concerned commutator itself, and storage battery production enterprise is only concerned accumulator itself.Ultimately result in commutator and do not possess high reliability and long-life condition with accumulator, thus affecting safety and the life-span of whole straight-flow system.
When commutator is made with accumulator individualism, it is respectively provided with good stability and safety, but when combining as straight-flow system, it is easy to there is safety problem.When, after battery discharging, if adopting commutator directly accumulator to be charged, it is likely that produce instantaneous large-current, causing that commutator enters guard mode, commutator stops output, affects the normal operation of straight-flow system.
A lot of straight-flow systems are for security consideration, 2 group storage batteries are adopted to be backed-up, when one group storage battery needs electric discharge to safeguard, in order to ensure the safety of system, it is necessary to another set accumulator line attachment, after electric discharge terminates, if the accumulator of one group of short of electricity line attachment again, and the accumulator of the full electricity of another set is in connected state, owing to accumulator internal resistance is only small, the pressure reduction of two group storage batteries can cause that accumulator cell charging and discharging electric current is excessive, occurs that circuit burns, even explosion accident on fire occurs.In order to avoid above-mentioned accident, after one group storage battery electric discharge terminates, staff often reduces the voltage of commutator in outside, slowly the accumulator of short of electricity is charged, step up voltage, until accumulator fully charged after, then accumulator is accessed original straight-flow system, this mode brings great manpower loss and labor intensity！
Additionally, traditional straight-flow system is directly articulated in the outfan of commutator accumulator and load, and accumulator is chronically at floating charging state, there is certain drawback: accumulator is due to many reasons such as manufacturing process, after using a period of time, accumulator there will be monomer voltage difference, when float charge voltage is constant, and the accumulator that single battery voltage is high, it is chronically at overcharge condition, it is very easy to occur that electrolysis water reacts, causes that single battery progressively lacks liquid, progressively damage.And the accumulator that single battery voltage is low, due to cannot be fully charged, cause that the chemical reaction of accumulator itself is insufficient, cause progressively vulcanizing, also lead to battery malfunction.
Furthermore, the service life of accumulator is influenced by ambient temperature very big, and battery environment temperature raises, the chemical reaction aggravation of accumulator, if the charging voltage of accumulator is not effectively controlled, will appear from charging current excessive, causing thermal runaway, final accumulator expands to be damaged.And the working environment of straight-flow system, it is many times rely on air-conditioning to carry out temperature controlled, if air-conditioning damages or air-conditioning underpower, when operating ambient temperature cannot be achieved effective control, the working environment of high temperature will have a strong impact on the service life of accumulator.
Utility model content
Main purpose of the present utility model is in that the shortcoming overcoming prior art is with not enough, it is provided that a kind of straight-flow system commutator.
In order to achieve the above object, this utility model is by the following technical solutions:
A kind of straight-flow system commutator that this utility model provides, including being converted to unidirectional current AC-DC conversion module for completing alternating current, for to the load supplying direct current output module A (i.e. DC Module A in Fig. 1) of straight-flow system, for regulating the direct current output module B (i.e. DC Module B in Fig. 1) of the voltage/current to accumulator output, for detecting the output voltage/electric current of whole straight-flow system and the measure voltage & current module of the voltage/current of external dc circuit that accumulator connects, the temperature collect module of ambient temperature and battery temp for gathering straight-flow system；Described direct current output module A is directly connected to load, and direct current output module B connects the accumulator of straight-flow system；Being provided with unilateal conduction device between direct current output module B and direct current output module A, when direct current output module A lacks direct current output, the accumulator on direct current output module B is to load supplying；Interface module in described measure voltage & current module, temperature collect module, direct current output module B is all connected with the CPU module in direct current output module B.
As preferred technical scheme, the built-in device that can regulate accumulator charging voltage/electric current of described direct current output module B, can be charged controlling to accumulator according to the pattern set；The input of direct current output module B is connected to the outfan of direct current output module A, and described direct current output module B can also individually connect from the direct current after alternating current-direct current circulation.
As preferred technical scheme, described direct current output module B includes PWM module, CPU module and interface module, and described interface module and PWM module are all connected with CPU module, and wherein PWM module is controlled by CPU module；Described interface module is used for the display of direct current output module B, arranges input and PERCOM peripheral communication；Described CPU module can the signal of collecting temperature acquisition module and measure voltage & current module.
As preferred technical scheme, described CPU module adopts the chip possessing PWM output, described in possess the chip of PWM output be PIC, ARM or STC single-chip microcomputer.
As preferred technical scheme, described CPU module can judge according to the single battery quantity of interface module input, voltage, capacity, ambient temperature and battery temp, and controls the output of direct current output module B.
As preferred technical scheme, described measure voltage & current module includes voltage detection module and current detection module, and described voltage detection module and current detection module are all connected with the CPU module in direct current output module B.
This utility model compared with prior art, has the advantage that and beneficial effect:
For Traditional DC system Problems existing, this utility model intelligence can change the charged state to accumulator, it is to avoid the injury that in straight-flow system, the long-term floating charge of accumulator brings, and extends the life-span of accumulator；Simultaneously as accumulator is had individually controllable charging circuit by commutator, short of electricity accumulator accesses straight-flow system, it is possible to avoid the instantaneous large-current that charging process occurs, improves the safety of system.
Accompanying drawing explanation
Fig. 1 is the application schematic diagram of this utility model straight-flow system commutator；
Fig. 2 be this utility model straight-flow system rectifier DC output module B realize theory diagram；
Fig. 3 is the circuit theory diagrams of this utility model direct current output module B.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As shown in Figure 1-Figure 3, a kind of straight-flow system commutator of the present utility model, including being converted to unidirectional current AC-DC conversion module for completing alternating current, for to the load supplying direct current output module A of straight-flow system, for regulating the direct current output module B of the voltage/current to accumulator output, for detect the output voltage/electric current of whole straight-flow system and the measure voltage & current module of the voltage/current of external dc circuit that accumulator connects (as shown in Figure 2, measure voltage & current module includes voltage detection module and current detection module), the temperature collect module of ambient temperature and battery temp for gathering straight-flow system；Described direct current output module A is directly connected to load, and direct current output module B connects the accumulator of straight-flow system；Being provided with unilateal conduction device between direct current output module B and direct current output module A, when direct current output module A lacks direct current output, the accumulator on direct current output module B is to load supplying；Interface module in described measure voltage & current module, temperature collect module, direct current output module B is all connected with the CPU module in direct current output module B.
The built-in device that can regulate accumulator charging voltage/electric current of described direct current output module B, can be charged controlling to accumulator according to the pattern set；The input of direct current output module B is connected to the outfan of direct current output module A, and described direct current output module B can also individually connect from the direct current after alternating current-direct current circulation.
As shown in Figure 2 and Figure 3, the B of direct current output module described in the present embodiment includes PWM module, CPU module and interface module, and described interface module and PWM module are all connected with CPU module, and wherein PWM module is controlled by CPU module；Described interface module is used for the display of direct current output module B, arranges input and PERCOM peripheral communication；Described CPU module can the signal of collecting temperature acquisition module and measure voltage & current module, the circuit theory diagrams of described direct current output module B are specifically shown in Fig. 3.
Described CPU module adopt possesses PWM output chip, described in possess PWM output chip be PIC, ARM or STC single-chip microcomputer.
Described CPU module can judge according to the single battery quantity of interface module input, voltage, capacity, ambient temperature and battery temp, and controls the output of direct current output module B.Additionally described CPU module according to the information of measure voltage & current module, can record accumulator charging, the voltage of electric discharge, electric current, temporal information, and calculate the charging of accumulator, discharge capacity, provide foundation for accumulator Charge Management.
In the present embodiment, described CPU module even can also turn off according to the output of the information control direct current output module B of current/voltage acquisition module, temperature collect module, when accumulator charging complete, close the output of direct current output module B, allow accumulator be in static condition.
Described CPU module controls the output of direct current output module B, in outside accumulator because when self discharge or other factors cause that accumulator capacity declines, controls direct current output module B and regularly carries out supplementing electricity to accumulator, it is ensured that accumulator is in fully charged state.
220V accumulator battery electric discharge operation in transformer station direct current system, transformer station direct current system generally configures commutator 1# and drags accumulator battery 1# (master), commutator 2# to drag accumulator battery 2# (standby).Owing to traditional commutator does not possess the function to accumulator protecting; accumulator 1# discharges upkeep operation; with commutator 1# or accumulator battery 2# loop pressure reduction after discharging in order to avoid accumulator battery 1#; cause the infringement that straight-flow system is caused by big electric current; traditional accumulator battery 1# discharge flow path is that commutator 1# exits; control bus closes a floodgate; accumulator battery 1# exits; power source bus closes a floodgate; guaranteeing to exit at accumulator battery 1#, in the process that electric discharge is safeguarded, commutator 2# is to load supplying; just in case having a power failure, load can be undertaken the effect that back-up source is powered by accumulator battery 2#.After electric discharge terminates, manual adjustment commutator 1# reduces charging voltage, it is necessary to step up the output voltage of commutator, accumulator battery 1# is charged, fully charged rear commutator 1# and accumulator battery 1# again accesses system, control bus and power source bus and disconnects, and recovers the connection of the front original system of electric discharge.
Adopt commutator technology of the present utility model, it is possible to achieve the effective control to accumulator battery output voltage/electric current, protect accumulator battery.Adopt commutator technology of the present utility model, accumulator battery 1# electric discharge work flow can simplify accumulator battery 1# and directly exit electric discharge, after electric discharge terminates, accumulator battery 1# is directly accessed straight-flow system, now, the monomer number of the accumulator battery of connection that the CPU module of commutator 1# will input in interface module according to accumulator battery 1#, monomer nominal voltage levels, monomer nominal capacity information, safe charge voltage scope, safe current scope that accumulator battery can be applied carry out clear and definite judgement.With one group of 108 monomer nominal voltage for 2V, nominal capacity is the accumulator battery of 500AH is example, and by inputting these information, CPU module can be determined that the safe float charge voltage of this accumulator battery is 240V at once, even charging voltage is 254V, and safe charging electric current is 50A (10 hour rates calculate).CPU module controls direct current output module B; accumulator battery is carried out the constant-current charge of 0.1C, after waiting battery charging to reach 80%, is transferring constant-voltage charge to, finally enter trickle charge state; realize the protection to accumulator battery, thus simplifying accumulator battery electric discharge work flow.Embodiment 2
Accumulator battery output is generally had three changes by traditional commutator technology: 1, temperature is supplemented, and according to external temperature, the float charge voltage of accumulator battery is automatically adjusted, is generally 3mV/ monomer；2, float charge voltage output；3, even charging voltage output.Namely accumulator battery is constantly in floating charge state by commutator.Accumulator battery is constantly in floating charge state and easily causes the series of negative impacts such as scarce liquid.Adopt the commutator technology of the present utility model can while guaranteeing the full electricity of accumulator battery, avoid long-term floating charge: when accumulator is when full power state, CPU module controls direct current output stream module B and stops the charging to accumulator, accumulator is allowed to be in static condition, it is to avoid accumulator is chronically at the injury that accumulator is caused by floating charge state.When accumulator is in long-term static condition, the self discharge of accumulator itself can cause that accumulator capacity gradually reduces, interface module can arrange the cycle that accumulator is regularly supplemented electricity, accumulator can be carried out supplementing electricity by timing controlled direct current output module B by CPU module, allows accumulator be constantly in full power state.When accumulator is in static condition, owing to accumulator possesses the ability of unidirected discharge, when external dc power occurs abnormal, accumulator can powering load, it is ensured that the safety of whole straight-flow system.
Embodiment 3
When air conditioner in machine room is malfunctioning or air-conditioning power is not or when being fitted without air-conditioning at all; the hot seasons such as such as summer; the indoor temperature of machine room is higher; when being not suitable for accumulator is charged; traditional commutator can reduce the float charge voltage to accumulator and export, and general lower modulation is 3mV/ monomer, but in the case of a high temperature; this lower modulation is inadequate, it is impossible to reach the purpose of protection accumulator.Commutator technology of the present utility model, can when being not suitable for charging, stop the charging to accumulator, better avoid the infringement that accumulator high-temperature charging causes, specific works process is as follows: it is higher that temperature collect module gathers current operating environment temperature, such as more than 35 DEG C, CPU module judges that Current Temperatures is as dangerous battery charging temperature, control direct current output module B to stop battery charging, in order to avoid causing accumulator battery to expand or thermal runaway, when temperature recovers normal range, as during lower than 30 DEG C, CPU module is judged to safe charging temperature, control direct current output module B to recover the float charge voltage of accumulator battery is exported.
Above-described embodiment is this utility model preferably embodiment; but embodiment of the present utility model is also not restricted to the described embodiments; other any without departing from the change made under spirit of the present utility model and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.
Claims (5)
1. a straight-flow system commutator, it is characterized in that, including for completing alternating current and being converted to unidirectional current AC-DC conversion module, for the load supplying direct current output module A of straight-flow system, for regulating the direct current output module B of the voltage/current to accumulator output, for detecting the output voltage/electric current of whole straight-flow system and the temperature collect module of the measure voltage & current module of the voltage/current of external dc circuit that accumulator connects, ambient temperature and battery temp for gathering straight-flow system；Described direct current output module A is directly connected to load, and direct current output module B connects the accumulator of straight-flow system；Being provided with unilateal conduction device between direct current output module B and direct current output module A, when direct current output module A lacks direct current output, the accumulator on direct current output module B is to load supplying；Interface module in described measure voltage & current module, temperature collect module, direct current output module B is all connected with the CPU module in direct current output module B.
2. straight-flow system commutator according to claim 1, it is characterised in that the built-in device that can regulate accumulator charging voltage/electric current of described direct current output module B, can be charged controlling to accumulator according to the pattern set；The input of direct current output module B is connected to the outfan of direct current output module A, and described direct current output module B can also individually connect from the direct current after alternating current-direct current circulation.
3. straight-flow system commutator according to claim 2, it is characterised in that described direct current output module B includes PWM module, CPU module and interface module, and described interface module and PWM module are all connected with CPU module, and wherein PWM module is controlled by CPU module；Described interface module is used for the display of direct current output module B, arranges input and PERCOM peripheral communication；Described CPU module can the signal of collecting temperature acquisition module and measure voltage & current module.
4. straight-flow system commutator according to claim 3, it is characterised in that described CPU module adopt possesses PWM output chip, described in possess PWM output chip be PIC, ARM or STC single-chip microcomputer.
5. straight-flow system commutator according to claim 1, it is characterized in that, described measure voltage & current module includes voltage detection module and current detection module, and described voltage detection module and current detection module are all connected with the CPU module in direct current output module B.
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| CN201620130659.3U CN205385320U (en) | 2016-02-19 | 2016-02-19 | Direct current system rectifier |
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| CN201620130659.3U CN205385320U (en) | 2016-02-19 | 2016-02-19 | Direct current system rectifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515136A (en) * | 2016-02-19 | 2016-04-20 | 广州泓淮能源科技有限公司 | Direct current system rectifier and implementation method thereof |
| CN106451708A (en) * | 2016-08-12 | 2017-02-22 | 广州泓淮能源科技有限公司 | Direct current system protection device and direct current system protection method |
-
2016
- 2016-02-19 CN CN201620130659.3U patent/CN205385320U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105515136A (en) * | 2016-02-19 | 2016-04-20 | 广州泓淮能源科技有限公司 | Direct current system rectifier and implementation method thereof |
| CN106451708A (en) * | 2016-08-12 | 2017-02-22 | 广州泓淮能源科技有限公司 | Direct current system protection device and direct current system protection method |
| CN106451708B (en) * | 2016-08-12 | 2019-07-12 | 广州泓淮能源科技有限公司 | A kind of DC system protection device and guard method |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231011 Address after: Room 301, Building H3, No. 39 Ruihe Road, Huangpu District, Guangzhou City, Guangdong Province, 510700 Patentee after: Guangzhou Honghuai Energy Service Co.,Ltd. Address before: 510663 Fourth Floor of Building G, No. 5 Jingye Third Street, Yushu Industrial Park, Guangzhou Economic and Technological Development Zone, Guangdong Province Patentee before: GUANGZHOU HONGHUAI ENERGY TECHNOLOGY CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A DC system rectifier Effective date of registration: 20231201 Granted publication date: 20160713 Pledgee: Gu Chunhua Pledgor: Guangzhou Honghuai Energy Service Co.,Ltd. Registration number: Y2023980068864 |