CN216215957U - Mobile energy storage vehicle with pre-charging circuit - Google Patents
Mobile energy storage vehicle with pre-charging circuit Download PDFInfo
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- CN216215957U CN216215957U CN202122337827.XU CN202122337827U CN216215957U CN 216215957 U CN216215957 U CN 216215957U CN 202122337827 U CN202122337827 U CN 202122337827U CN 216215957 U CN216215957 U CN 216215957U
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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Abstract
The utility model provides a remove energy storage car with precharge circuit, includes direct current rifle seat, control panel, main positive electrical switch, pre-charge resistance and battery that charges, the positive output end warp of direct current rifle seat that charges main positive electrical switch with the positive electricity of battery is connected, direct current rifle seat that charges the positive output end warp pre-charge electrical switch with pre-charge resistance with the positive electricity of battery is connected, the control panel electricity is connected main positive electrical switch with pre-charge electrical switch. The bypass pre-charging circuit is formed by the pre-charging electric control switch, the pre-charging resistor and the battery, the control panel controls the main positive relay of the main charging circuit and the pre-charging relay of the bypass pre-charging circuit to be opened and closed, and therefore the main charging circuit and the bypass pre-charging circuit are switched to be charged, control over input current is achieved, and the battery is prevented from being damaged due to overlarge charging current.
Description
Technical Field
The utility model relates to the technical field of new energy automobiles, in particular to a mobile energy storage vehicle with a pre-charging circuit.
Background
Under the high-speed development background of new energy industry, electric automobile's quantity is constantly increased sharply, under electric automobile leaves the scene far away from filling the electric pile website, electric automobile can't in time obtain charging, the not enough unable condition of going of battery power appears, need emergent charging and rescue, for this reason prior art has designed mobile energy storage car, mobile energy storage car is the framework that adopts traditional car to carry on energy storage battery, use energy storage battery's electricity to charge for electric automobile, energy storage battery has high cycle life's characteristics, mobile energy storage car has high durability.
However, in the initial energy storage system, the energy storage system supplies power to the stored energy through the power grid, and the mobile energy storage vehicle is no exception. The energy storage battery of the mobile energy storage vehicle is charged by the Power grid, and the principle is that the Power grid outputs alternating current to be converted into direct current through an AC/DC module of a PCS (Power Conversion System) to charge the energy storage battery. However, the mobile energy storage vehicle is only charged by the power grid and is limited by a fixed power grid charging station and a specific connection mode, so that more time is spent on charging the energy storage battery in a loop, and the requirement of the electric vehicle for emergency charging at any time and any place and with high efficiency and high frequency cannot be met. And the recycling efficiency of the mobile energy storage vehicle is influenced, and the allocation is lack of flexibility. Therefore, in order to provide a mobile energy storage vehicle with flexible power supply, high-power charging, improved power supply capacity of a distribution network and wide flexible application range, the prior art designs the mobile energy storage vehicle with a direct-current charging pile charging mode so as to enable the mobile energy storage vehicle to supply power at any time and any place.
But when filling electric pile for battery charging through the direct current, when the relay is closed, because battery electric quantity is lower, the instantaneous current of input when the direct current crimping is too big probably, leads to the battery to damage.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides a remove energy storage car with precharge circuit to solve the too big problem of instantaneous current when charging.
In order to solve the technical problems, the utility model adopts the technical scheme that: the utility model provides a remove energy storage car with precharge circuit, includes direct current rifle seat, control panel, main positive electrical switch, pre-charge resistance and battery that charges, the positive output end warp of direct current rifle seat that charges main positive electrical switch with the positive electricity of battery is connected, direct current rifle seat that charges the positive output end warp pre-charge electrical switch with pre-charge resistance with the positive electricity of battery is connected, the control panel electricity is connected main positive electrical switch with pre-charge electrical switch.
Further, the main positive electric control switch is specifically a main positive relay, and the pre-charging electric control switch is specifically a pre-charging relay.
And the negative output end of the direct current charging gun seat is electrically connected with the negative electrode of the battery through the main negative electric control switch.
Further, the main negative electric control switch is specifically a main negative relay.
Further, still include commercial power interface, PCS and interlocking electrical control switch, interlocking electrical control switch is located on the power supply circuit of control panel, the input electricity of PCS is connected commercial power interface, the output electricity of PCS is connected interlocking electrical control switch's control end, interlocking electrical control switch is normally closed switch, main positive electrical control switch with precharge electrical control switch is normally open switch.
Further, the interlock electric control switch is specifically an interlock relay.
Further, still include BMS system, the control panel electricity is connected the direct current rifle seat and BMS system.
Furthermore, the number of the batteries is multiple, the positive electrodes of the batteries are gathered to a battery direct-current high-voltage bus, the positive output end of the direct-current charging gun holder is electrically connected with the battery direct-current high-voltage bus through the main positive electric control switch, and the positive output end of the direct-current charging gun holder is electrically connected with the battery direct-current high-voltage bus through the pre-charging electric control switch and the pre-charging resistor.
The utility model has the beneficial effects that: the bypass pre-charging circuit is formed by the pre-charging electric control switch, the pre-charging resistor and the battery, and the control panel controls the opening and closing of the main positive relay of the main charging circuit and the pre-charging relay of the bypass pre-charging circuit, so that the main charging circuit and the bypass pre-charging circuit are switched to be charged, the control of input current is realized, and the battery is prevented from being damaged due to overlarge charging current.
Drawings
Fig. 1 is a schematic structural diagram of a charging circuit of a mobile energy storage vehicle with a pre-charging circuit according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a pre-charging circuit structure of a mobile energy storage vehicle having a pre-charging circuit according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a charging interlock circuit of a mobile energy storage vehicle with a pre-charging circuit according to an embodiment of the present invention;
description of reference numerals:
1. DC charging gun holder
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1-3, a mobile energy storage vehicle with a pre-charging circuit includes a dc charging gun seat, a control panel, a main positive control switch, a pre-charging resistor, and a battery, wherein a positive output end of the dc charging gun seat is electrically connected to a positive electrode of the battery through the main positive control switch, the positive output end of the dc charging gun seat is electrically connected to a positive electrode of the battery through the pre-charging control switch and the pre-charging resistor, and the control panel is electrically connected to the main positive control switch and the pre-charging control switch.
From the above description, the beneficial effects of the present invention are: the bypass pre-charging circuit is formed by the pre-charging electric control switch, the pre-charging resistor and the battery, the control panel controls the main positive relay of the main charging circuit and the pre-charging relay of the bypass pre-charging circuit to be opened and closed, and therefore the main charging circuit and the bypass pre-charging circuit are switched to be charged, control over input current is achieved, and the battery is prevented from being damaged due to overlarge charging current.
Further, the main positive electric control switch is specifically a main positive relay, and the pre-charging electric control switch is specifically a pre-charging relay.
And the negative output end of the direct current charging gun seat is electrically connected with the negative electrode of the battery through the main negative electric control switch.
Further, the main negative electric control switch is specifically a main negative relay.
From the above description, the main negative electric control switch switches the low voltages of the dc charging pile and the battery to be common and separate.
Further, still include commercial power interface, PCS and interlocking electrical control switch, interlocking electrical control switch is located on the power supply circuit of control panel, the input electricity of PCS is connected commercial power interface, the output electricity of PCS is connected interlocking electrical control switch's control end, interlocking electrical control switch is normally closed switch, main positive electrical control switch with precharge electrical control switch is normally open switch.
Further, the interlock electric control switch is specifically an interlock relay.
As can be seen from the above description, the PCS is connected with the control end of the interlocking electric control switch, the interlocking control switch is positioned on the power supply loop, when the PCS outputs current, the interlocking control switch is switched on, the control panel is not powered, and the direct current charging loop is not available, so that the interlocking of the commercial power charging and the direct current charging pile charging is realized.
Further, still include BMS system, the control panel electricity is connected the direct current rifle seat and BMS system.
According to the above description, the control panel is electrically connected with the direct-current charging gun seat, the battery information collected by the MBMU is forwarded to the charging pile, and meanwhile, the opening and closing of each relay in the charging box are controlled, so that the national standard charging communication process is completed.
Furthermore, the number of the batteries is multiple, the positive electrodes of the batteries are gathered to a battery direct-current high-voltage bus, the positive output end of the direct-current charging gun holder is electrically connected with the battery direct-current high-voltage bus through the main positive electric control switch, and the positive output end of the direct-current charging gun holder is electrically connected with the battery direct-current high-voltage bus through the pre-charging electric control switch and the pre-charging resistor.
As can be seen from the above description, the dc charging gun mount is electrically connected to the battery dc bus to power the individual batteries on the bus.
Example one
The mobile energy storage vehicle with the pre-charging circuit comprises a control cabinet and a Battery cabinet for accommodating batteries, wherein the control cabinet comprises a Battery Management System (BMS) System for managing the batteries.
The control cabinet mainly comprises an industrial personal computer, a display, a UPS insulation detection module, a communication conversion module, an MBMU and the like, and has the communication function with other parts in the vehicle and an external Ethernet.
The battery cabinet is formed by connecting 280Ah lithium iron phosphate batteries with high safety and high reliability in series and parallel, is managed by a BMS system of the control cabinet, a subunit bus converges on a battery direct current bus, the control cabinet controls subunits, information of the battery cabinet is collected and stored in the control cabinet through a CAN interface, and meanwhile, battery data and information CAN be uploaded to a power station energy management system through the Ethernet.
Referring to fig. 1, the charging circuit of the mobile energy storage vehicle includes a battery, a PCS, a power grid interface, a charging box, and a dc charging gun base 1.
The power grid interface is used for being connected with an external alternating-current power grid, electricity is taken from mains supply and converted into a direct-current power supply through a PCS (Power System controller) to charge a battery, and the direct-current charging gun seat 1 is used for being electrically connected with a direct-current charging gun of an external charging pile, so that electricity is taken from the charging pile and is conveyed to the battery through the charging box to be charged.
Specifically, the charging box comprises a control panel, a high-voltage connector, a low-voltage connector, a main positive relay, a main negative relay and a pre-charging relay, wherein the control panel is electrically connected with the high-voltage connector, the low-voltage connector, the main positive relay, the main negative relay and the pre-charging relay, the high-voltage connector is electrically connected with a high-voltage direct current bus of the Battery for sampling, the low-voltage connector is communicated with an MBMU (Master Battery Management Unit) of a BMS in a control cabinet through an A-CAN (Controller Area Network), the charging device is communicated with an industrial personal computer in a control cabinet through RS485, a low-voltage connector is electrically connected with a power interface of the control cabinet to take electricity to supply the charging box to work, a control panel is electrically connected with a direct current charging gun seat 1 to forward the battery information collected by the MBMU to a charging pile, and meanwhile, the opening and closing of each relay in the charging box are controlled, so that the national standard charging communication process is completed.
Specifically, as shown in fig. 2, the positive input end of the dc charging gun base 1 is electrically connected with the positive electrode of the battery through a main positive relay, the negative electrode is electrically connected with the negative electrode of the battery through a main negative relay, and the positive input end of the dc charging gun base 1 is electrically connected with the positive electrode of the battery through a pre-charging relay and a pre-charging resistor in sequence, in the charging process, the pre-charging relay and the main negative relay are closed first, the charging pile charges the battery through the pre-charging resistor, the pre-charging resistor limits the current provided by the charging pile, the input instantaneous current is prevented from being too large during charging, the battery is damaged, when the control panel detects that the voltage of the battery is greater than a preset value, the pre-charging relay is controlled to be opened, the main positive relay is closed, and the full power of the charging pile charges the battery at the moment, so as to satisfy the balance between the charging efficiency of the battery and the safety.
In an alternative embodiment, the number of batteries is multiple, the positive electrodes of the batteries are converged on a battery direct current high-voltage bus, and the direct current charging gun holder 1 and the PCS are electrically connected with the battery direct current bus so as to supply power to the batteries.
Example two
Referring to fig. 3, the difference from the first embodiment is that a hardware interlock circuit is further provided, specifically, the hardware interlock circuit includes an interlock relay, the interlock relay is located on a power supply loop of the control board, positive and negative outputs of the PCS are electrically connected to two ends of the interlock relay, when the commercial power and the dc charging pile are simultaneously input, the interlock relay is turned on due to the output of the PCS coil, the control board is not powered, the main positive relay, the main negative relay and the pre-charging relay are all in an on state, and the dc charging pile has no input. When the commercial power is not input, the PCS is not electrified and does not output, the interlocking relay is closed, the control panel is electrified, and the main positive relay, the main negative relay and the pre-charging relay can be normally controlled to be opened and closed so as to ensure that the direct current charging pile normally supplies power.
In summary, the mobile energy storage vehicle with the pre-charging circuit provided by the utility model has an interlocking function of charging the commercial power and the direct current charging pile, and has the pre-charging circuit, and the control of the input charging current is realized by controlling the switching of the main charging circuit and the bypass pre-charging circuit, so that the damage of the battery caused by the overlarge charging current is avoided.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a remove energy storage car with precharge circuit which characterized in that: including direct current rifle seat, control panel, main positive electric control switch, pre-charge resistance and battery, the positive output end warp of direct current rifle seat of charging main positive electric control switch with the positive electric connection of battery, direct current rifle seat of charging positive output end warp pre-charge electric control switch with pre-charge resistance with the positive electric connection of battery, the control panel electricity is connected main positive electric control switch with pre-charge electric control switch.
2. The mobile energy storage vehicle with the pre-charging circuit as claimed in claim 1, wherein: the main positive electric control switch is specifically a main positive relay, and the pre-charging electric control switch is specifically a pre-charging relay.
3. The mobile energy storage vehicle with the pre-charging circuit as claimed in claim 1, wherein: the negative output end of the direct current charging gun seat is electrically connected with the negative electrode of the battery through the negative electric control switch.
4. A mobile energy storage vehicle having a pre-charge circuit according to claim 3, wherein: the main negative electric control switch is specifically a main negative relay.
5. The mobile energy storage vehicle with the pre-charging circuit as claimed in claim 1, wherein: still include commercial power interface, PCS and interlocking electrical control switch, interlocking electrical control switch is located on the power supply circuit of control panel, the input electricity of PCS is connected commercial power interface, the output electricity of PCS is connected interlocking electrical control switch's control end, interlocking electrical control switch is normally closed switch, main positive electrical control switch with pre-charge electrical control switch is normally open switch.
6. A mobile energy storage vehicle with a pre-charging circuit according to claim 5, characterized in that: the interlocking electric control switch is specifically an interlocking relay.
7. The mobile energy storage vehicle with the pre-charging circuit as claimed in claim 1, wherein: still include the BMS system, the control panel electricity is connected direct current rifle seat and BMS system of charging.
8. The mobile energy storage vehicle with the pre-charging circuit as claimed in claim 1, wherein: the direct-current charging gun comprises a plurality of batteries, wherein the anodes of the batteries are gathered to a battery direct-current high-voltage bus, the positive output end of a direct-current charging gun seat is electrically connected with the battery direct-current high-voltage bus through a main positive electric control switch, and the positive output end of the direct-current charging gun seat is electrically connected with the battery direct-current high-voltage bus through a pre-charging electric control switch and a pre-charging resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122337827.XU CN216215957U (en) | 2021-09-26 | 2021-09-26 | Mobile energy storage vehicle with pre-charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122337827.XU CN216215957U (en) | 2021-09-26 | 2021-09-26 | Mobile energy storage vehicle with pre-charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216215957U true CN216215957U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122337827.XU Active CN216215957U (en) | 2021-09-26 | 2021-09-26 | Mobile energy storage vehicle with pre-charging circuit |
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| Country | Link |
|---|---|
| CN (1) | CN216215957U (en) |
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2021
- 2021-09-26 CN CN202122337827.XU patent/CN216215957U/en active Active
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