CN110970988A - Direct current screen capable of outputting multiple paths of voltage grades - Google Patents
Direct current screen capable of outputting multiple paths of voltage grades Download PDFInfo
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- CN110970988A CN110970988A CN201911347256.9A CN201911347256A CN110970988A CN 110970988 A CN110970988 A CN 110970988A CN 201911347256 A CN201911347256 A CN 201911347256A CN 110970988 A CN110970988 A CN 110970988A
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- direct current
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- battery pack
- storage battery
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a direct current screen capable of outputting a plurality of paths of voltage grades, which comprises a voltage regulation controller, a contactor group and a storage battery pack, wherein the contactor group is connected with the storage battery pack; the storage battery pack is composed of a plurality of storage batteries which are sequentially connected in series, the storage batteries are equally divided into a plurality of subgroups, and two ends of the overall series structure of the storage battery pack and nodes between adjacent subgroups are respectively used as nodes and lead wires are led out; the contactor group is composed of a plurality of contactors, leads of all nodes are connected with one end of each contactor in a one-to-one correspondence mode, the other end, corresponding to the positive end node, of the storage battery pack is used as a public positive end, the other end, corresponding to the other nodes, of each contactor is used as a negative end, a load is connected between the public positive end and each negative end, and the voltage regulation controller is connected with coils of the contactors. The invention can provide power supplies with different grades of voltages for electric equipment with different working voltages on the spot.
Description
Technical Field
The invention relates to the field of electric power direct current screens, in particular to a direct current screen capable of outputting multiple paths of voltage grades.
Background
The direct current screen is important power supply equipment in an electric power system, and plays an important role in stability and reliability of the electric power system, various secondary equipment and primary equipment are operated, measured and communicated on the premise that reliable power supply of the direct current screen is required, the output voltage of the current direct current screen is usually 220V and 110V, a battery with corresponding voltage can be purchased according to design before the current direct current screen is generally delivered out of a factory, and the output voltage is fixed after the direct current screen is transported to a site. At present, a plurality of power devices which need different voltages to operate are often arranged on the site of the power secondary device, for example, the voltage input by the power DTU device is generally 48V or 24V, and at this time, only an additional switching power supply can be added to adjust the voltage input by the dc screen to be within the voltage range needed by the power devices.
Disclosure of Invention
The invention aims to provide a direct current screen capable of outputting multiple paths of voltage grades so as to solve the problem that the direct current screen in the prior art can only provide single output voltage.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a direct current screen of exportable multichannel multiple voltage class which characterized in that: the direct current power supply comprises a voltage regulation controller, a contact group and a storage battery pack, wherein the voltage regulation controller is arranged in a direct current screen; the storage battery pack is composed of a plurality of storage batteries which are sequentially connected in series, the storage batteries in the storage battery pack are equally divided into a plurality of subgroups, and nodes at two ends of the overall series structure of the storage battery pack and nodes between adjacent subgroups are respectively used as nodes and lead wires are led out; the contactor group comprises a plurality of contactors, the quantity of the contactors corresponds to the quantity of the nodes, the leads of the nodes are connected with one end of each contactor in a one-to-one correspondence mode, the other end, corresponding to the node, of the positive end of the storage battery pack integral series structure is connected with one end of each load as a common positive end, the other end of each load is connected with the other end of the other contactors in a one-to-one correspondence mode, and the voltage regulation controller is connected with coils of the contactors.
The direct current screen capable of outputting multiple paths of voltage grades is characterized in that: each subgroup is respectively provided with a charging module, the input end of the charging module is connected with an external direct current or alternating current power supply, two end nodes of the series structure in each subgroup are also respectively connected with the output end of the corresponding charging module, and the charging module charges the corresponding subgroup.
The direct current screen capable of outputting multiple paths of voltage grades is characterized in that: when the input of the charging module is connected with an alternating current power supply, the built-in rectifying circuit of the charging module converts an alternating current signal into a direct current and then charges the corresponding subgroup.
The direct current screen capable of outputting multiple paths of voltage grades is characterized in that: every two storage batteries in the storage batteries are used as a subgroup to be charged by the corresponding charging module.
The direct current screen capable of outputting multiple paths of voltage grades is characterized in that: the voltage regulation controller drives the contactor to be closed, so that power is supplied to each load with the working voltage gradually increased.
Compared with the prior art, the invention has the advantages that:
1) most of various field electric equipment can be regulated to be suitable for own voltage without an external switching power supply.
2) When the aging and damage problems of individual batteries occur, the batteries can be switched to the adjacent battery pack through the contactor.
Drawings
Fig. 1 is a diagram of the structure of a dc panel of the present invention.
Detailed Description
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, the system comprises a voltage regulation controller J1, a contact group T1, a storage battery pack Q1 and a charging module S1, wherein:
the contactor group comprises 10 contactors K1-K10, and each contactor is provided with a coil M1-M10 respectively and used for connecting and disconnecting the battery and the load.
The voltage regulation controller J1 comprises a liquid crystal module, a key module and an output module, wherein the liquid crystal module is used for displaying the output setting of the current voltage regulation controller and displaying a setting menu, the voltage output level in the setting menu can be changed through the key module, and the output module is connected with coils M1-M10 of each contactor K1-K10 through cables N1-N10 and used for driving the coils of the contactor groups, so that the on-off of the contactors K1-K10 is controlled.
The battery pack Q1 includes 18 lead-acid batteries B1 to B18, each of which has a rated voltage of 12V, and the 18 batteries are connected in series. The 18 batteries are divided into 9 subgroups of every 2 batteries, for example, batteries B1, B2 are the first subgroup, then B3, B4 are the second subgroup, and so on. The positive and negative terminals of the whole series structure and the nodes between the adjacent subgroups are respectively used as nodes, 10 nodes are provided in total, and 10 conducting wires E1-E10 are led out from each node.
The lead wires E1-E10 on the nodes are connected to one end P1-P10 of the contactors K1-K10 in a one-to-one correspondence mode, the other end F1 of the contactor K1 corresponding to the positive electrode end node in the whole series structure serves as a common positive electrode end and is connected with one end of each load G1-G10, and the other end of each load G1-G10 is connected with the other end F2-F10 of the contactor K2-K10 in a one-to-one correspondence mode.
The charging module group comprises 9 charging modules D1-D9 with 24V, 9 charging modules D1-D9 are correspondingly configured in the subgroup one by one, the brand of the charging module is Jinsheng Yang, and the model is MBP300-2A27D 27. Two ends of the series structure of each sub-group are respectively connected with the output end of the charging module, the input end of the charging module is respectively connected with 220V alternating current or direct current power supply, and each charging module can charge two storage batteries in the corresponding sub-group. For example, a subgroup of the storage batteries B1 and B2 corresponds to the charging module D1, and two output ends of the charging module D1 are respectively connected with a positive end and a negative end of the series structure of the subgroup through charging cables C1+ and C1-; a subgroup consisting of the storage batteries B3 and B4 corresponds to the charging module D2, and two output ends of the D2 are respectively connected with a positive end and a negative end of the subgroup series structure through charging cables C2+ and C2-.
The working process of the direct current screen is as follows, assuming that a working power supply required by a load G1 is 24V, and a user sets an output voltage to be 24V through a voltage regulation controller J1, an output module of the voltage regulation controller J1 pulls a contactor K1 through a cable N1, one end P1 of the contactor K1 is connected to the anode of a storage battery B1, and the other end F1 of the contactor K1 is connected to the load G1 through a cable; an output module of the voltage regulation controller JJ1 attracts a contactor K2 through a cable N2, one end P2 of the contactor K2 is connected to the negative electrode of a battery B2, the other end F2 of the contactor K2 is connected to a load G1 through a cable, the voltage is 24V at the moment, and the load G1 can work.
Assuming that the power supply voltage required by the load G2 is 48V, the output module of the voltage regulating controller J1 pulls the contactor K3 through the cable N3, and at this time, the first subset of the storage batteries B1 and B2 and the second subset of the storage batteries B3 and B4 together provide 48V to the load G2. By analogy, multiple paths of various voltages can be output.
The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.
Claims (5)
1. The utility model provides a direct current screen of exportable multichannel multiple voltage class which characterized in that: the direct current power supply comprises a voltage regulation controller, a contact group and a storage battery pack, wherein the voltage regulation controller is arranged in a direct current screen; the storage battery pack is composed of a plurality of storage batteries which are sequentially connected in series, the storage batteries in the storage battery pack are equally divided into a plurality of subgroups, and nodes at two ends of the overall series structure of the storage battery pack and nodes between adjacent subgroups are respectively used as nodes and lead wires are led out; the contactor group comprises a plurality of contactors, the quantity of the contactors corresponds to the quantity of the nodes, the leads of the nodes are connected with one end of each contactor in a one-to-one correspondence mode, the other end, corresponding to the node, of the positive end of the storage battery pack integral series structure is connected with one end of each load as a common positive end, the other end of each load is connected with the other end of the other contactors in a one-to-one correspondence mode, and the voltage regulation controller is connected with coils of the contactors.
2. The direct current screen capable of outputting multiple paths of voltage levels according to claim 1, wherein: each subgroup is respectively provided with a charging module, the input end of the charging module is connected with an external direct current or alternating current power supply, two end nodes of the series structure in each subgroup are also respectively connected with the output end of the corresponding charging module, and the charging module charges the corresponding subgroup.
3. The direct current screen capable of outputting multiple paths of voltage levels according to claim 2, wherein: when the input of the charging module is connected with an alternating current power supply, the built-in rectifying circuit of the charging module converts an alternating current signal into a direct current and then charges the corresponding subgroup.
4. The direct current screen capable of outputting multiple voltage levels according to claim 1 or 3, wherein: every two storage batteries in the storage batteries are used as a subgroup to be charged by the corresponding charging module.
5. The direct current screen capable of outputting multiple paths of voltage levels according to claim 1, wherein: the voltage regulation controller drives the contactor to be closed, so that power is supplied to each load with the working voltage gradually increased.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911347256.9A CN110970988A (en) | 2019-12-24 | 2019-12-24 | Direct current screen capable of outputting multiple paths of voltage grades |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911347256.9A CN110970988A (en) | 2019-12-24 | 2019-12-24 | Direct current screen capable of outputting multiple paths of voltage grades |
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| CN110970988A true CN110970988A (en) | 2020-04-07 |
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| CN201911347256.9A Pending CN110970988A (en) | 2019-12-24 | 2019-12-24 | Direct current screen capable of outputting multiple paths of voltage grades |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167119Y (en) * | 2008-03-14 | 2008-12-17 | 陈伟利 | Charging-discharging device for accumulator battery |
| CN104682374A (en) * | 2014-07-28 | 2015-06-03 | 四川省华电成套设备有限公司 | Multi-channel charging mode frequent open direct-current power supply screen |
| CN105610149A (en) * | 2016-02-18 | 2016-05-25 | 江西洪都航空工业集团有限责任公司 | Multi-system voltage output power supply method |
| CN106130190A (en) * | 2016-07-28 | 2016-11-16 | 蔚来汽车有限公司 | The family energy-storage system of multivoltage output |
| CN205725113U (en) * | 2016-04-01 | 2016-11-23 | 福建飞毛腿动力科技有限公司 | A kind of HVDC electric power system set of cells of compatible multiple voltage output |
| CN205882826U (en) * | 2016-06-27 | 2017-01-11 | 深圳市华思旭科技有限公司 | Supply assembly |
| CN106505890A (en) * | 2016-12-06 | 2017-03-15 | 广州市科恩电脑有限公司 | A kind of airborne intelligent multichannel voltage power-supply system |
| CN206041609U (en) * | 2016-08-31 | 2017-03-22 | 杭州金通公共自行车科技股份有限公司 | Low pressure UPS switching power supply integration power management equipment |
| JP2017108484A (en) * | 2015-12-07 | 2017-06-15 | 株式会社リコー | Power storage state adjustment device, battery pack, load system and power storage state adjustment method |
| CN110266068A (en) * | 2019-06-18 | 2019-09-20 | 季华实验室 | High-voltage battery control circuit, control method and storage medium |
-
2019
- 2019-12-24 CN CN201911347256.9A patent/CN110970988A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201167119Y (en) * | 2008-03-14 | 2008-12-17 | 陈伟利 | Charging-discharging device for accumulator battery |
| CN104682374A (en) * | 2014-07-28 | 2015-06-03 | 四川省华电成套设备有限公司 | Multi-channel charging mode frequent open direct-current power supply screen |
| JP2017108484A (en) * | 2015-12-07 | 2017-06-15 | 株式会社リコー | Power storage state adjustment device, battery pack, load system and power storage state adjustment method |
| CN105610149A (en) * | 2016-02-18 | 2016-05-25 | 江西洪都航空工业集团有限责任公司 | Multi-system voltage output power supply method |
| CN205725113U (en) * | 2016-04-01 | 2016-11-23 | 福建飞毛腿动力科技有限公司 | A kind of HVDC electric power system set of cells of compatible multiple voltage output |
| CN205882826U (en) * | 2016-06-27 | 2017-01-11 | 深圳市华思旭科技有限公司 | Supply assembly |
| CN106130190A (en) * | 2016-07-28 | 2016-11-16 | 蔚来汽车有限公司 | The family energy-storage system of multivoltage output |
| CN206041609U (en) * | 2016-08-31 | 2017-03-22 | 杭州金通公共自行车科技股份有限公司 | Low pressure UPS switching power supply integration power management equipment |
| CN106505890A (en) * | 2016-12-06 | 2017-03-15 | 广州市科恩电脑有限公司 | A kind of airborne intelligent multichannel voltage power-supply system |
| CN110266068A (en) * | 2019-06-18 | 2019-09-20 | 季华实验室 | High-voltage battery control circuit, control method and storage medium |
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Application publication date: 20200407 |