CN214647708U - High-power charging and discharging protection system, charging device and charging pile for automobile - Google Patents
High-power charging and discharging protection system, charging device and charging pile for automobile Download PDFInfo
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- CN214647708U CN214647708U CN202120815630.XU CN202120815630U CN214647708U CN 214647708 U CN214647708 U CN 214647708U CN 202120815630 U CN202120815630 U CN 202120815630U CN 214647708 U CN214647708 U CN 214647708U
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- charging
- storage battery
- switch tube
- discharging
- main line
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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
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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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
- Y02T90/14—Plug-in electric vehicles
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model relates to a high-power charging and discharging protection system of car, charging device and fill electric pile, wherein, the charging and discharging protection system includes: a charger; an inverter; the charging connection units are connected with the charger in parallel and comprise a plurality of connector modules which are used for being electrically connected with the storage battery pack to be charged; the output of charger is connected with the mainline that charges, and the input of dc-to-ac converter is connected with the mainline that discharges, is connected with between mainline that charges and the mainline that discharges and prevents reverse charge protection circuit, prevents reverse charge protection circuit and includes: the first switch tube is in one-way conduction to the storage battery pack to be charged, and the second switch tube is in one-way cutoff to the storage battery pack to be charged. Due to the limitation of the first switch tube and the second switch tube, the current of the damaged and abnormal sub-battery can not affect other sub-batteries and the storage battery pack, the normal storage battery pack can not generate the phenomena of electricity crosstalk and electricity leakage, and the stability of the charging and discharging system is improved.
Description
Technical Field
The utility model relates to an automobile charging technical field, in particular to high-power charging and discharging protection system of car, charging device and fill electric pile.
Background
With the gradual popularization of new energy automobiles, the safety of charging the automobile storage battery is also widely concerned. When charging in an automobile factory or a public charging area, a plurality of automobile storage battery packs are generally required to be simultaneously connected in parallel for charging, each storage battery pack comprises a plurality of sub-batteries connected in series, if one or more sub-batteries are damaged, the sub-batteries connected in series and the storage battery packs connected in parallel can be in series connection, and other storage battery packs or the sub-batteries connected in series can charge the damaged sub-batteries, so that the electric leakage of the storage battery packs is caused, and the charging stability of the whole system is influenced.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem, the utility model provides a high-power charging and discharging protection system of car, charging device and fill electric pile has the advantage that prevents that storage battery from taking place the cluster electricity electric leakage, improving charging stability.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a high-power charging and discharging protection system for an automobile comprises:
the charger is used for being connected with commercial power;
the inverter is used for converting the voltage of the storage battery pack into a voltage suitable for electric equipment of the automobile; and the number of the first and second groups,
the charging connection units are connected with the charger in parallel and comprise a plurality of connector modules connected in parallel, and the connector modules are used for being electrically connected with a storage battery pack to be charged;
the output end of the charger is connected with a charging main line corresponding to each charging connection unit, the input end of the inverter is connected with a discharging main line corresponding to each charging connection unit, an anti-reverse charging protection circuit is connected between the charging main line and the discharging main line corresponding to each connector module, and the anti-reverse charging protection circuit comprises: the charging circuit comprises a charging main line, a first switch tube and a second switch tube, wherein the first switch tube is connected with the charging main line, the second switch tube is connected with the discharging main line in parallel, the first switch tube is in one-way conduction with the storage battery pack to be charged, and the second switch tube is in one-way cutoff with the storage battery pack to be charged.
When the technical scheme is realized, the connector module is connected with a storage battery pack to be charged, the charger generates a charging voltage suitable for the storage battery pack to realize the charging work of the storage battery pack, and when the storage battery is discharged, the storage battery is discharged and penetrates into the inverter through a discharging main line, the inverter carries out inversion processing on the input voltage, and the voltage is converted into a voltage suitable for automobile electric equipment; if one or more of the storage battery packs are damaged or abnormal, the currents of the damaged and abnormal storage battery packs cannot influence other storage battery packs and the storage battery packs due to the limitation of the first switch tube and the second switch tube, the normal storage battery packs cannot generate electricity crosstalk and electric leakage, the normal storage battery packs cannot discharge electricity to other storage battery packs and the storage battery packs, and the stability of the charging system is improved.
As an optimized scheme of the utility model, first switch tube is parallelly connected with protection resistance still.
As an optimized scheme of the utility model, the first switch tube with the second switch tube is one of diode, one-way silicon controlled rectifier, triode.
As an optimized scheme of the utility model, series connection has discharge circuit breaker and fuse on the main line that discharges.
According to the technical scheme, the on-off of the discharging main line can be controlled through the discharging circuit breaker, and the discharging circuit can be protected through the fuse.
As an optimized scheme of the utility model, the output of dc-to-ac converter is connected with power supply circuit breaker.
By the technical scheme, the overall safety of the charging system is improved, and the whole charging system is protected.
On the other hand, the utility model also provides a charging device, including any one of the above-mentioned technical scheme charge-discharge protection system.
On the other hand, the utility model also provides a fill electric pile, including above-mentioned arbitrary technical scheme charge discharge protection system.
To sum up, the utility model discloses following beneficial effect has:
the embodiment of the utility model provides a through providing a high-power charging and discharging protection system of car, charging device and fill electric pile, wherein, the charging and discharging protection system includes: the charger is used for being connected with commercial power; the inverter is used for converting the voltage of the storage battery pack into a voltage suitable for electric equipment of the automobile; the charging connection units are connected with the charger in parallel and comprise a plurality of connector modules connected in parallel, and the connector modules are used for being electrically connected with a storage battery pack to be charged; the output end of the charger is connected with a charging main line corresponding to each charging connection unit, the input end of the inverter is connected with a discharging main line corresponding to each charging connection unit, an anti-reverse charging protection circuit is connected between the charging main line and the discharging main line corresponding to each connector module, and the anti-reverse charging protection circuit comprises: the charging circuit comprises a charging main line, a first switch tube and a second switch tube, wherein the first switch tube is connected with the charging main line, the second switch tube is connected with the discharging main line in parallel, the first switch tube is in one-way conduction with the storage battery pack to be charged, and the second switch tube is in one-way cutoff with the storage battery pack to be charged. During charging, the battery pack is connected with a storage battery pack to be charged through the connector module, the charger generates charging voltage adaptive to the storage battery pack to realize charging work of the storage battery pack, and during discharging, the storage battery discharges and penetrates into the inverter through a discharging main line, and the inverter inverts the input voltage to convert the voltage into voltage adaptive to automobile electric equipment; if one or more of the storage battery packs are damaged or abnormal, the currents of the damaged and abnormal storage battery packs cannot influence other storage battery packs and the storage battery packs due to the limitation of the first switch tube and the second switch tube, the normal storage battery packs cannot generate electricity crosstalk and electric leakage, the normal storage battery packs cannot discharge electricity to other storage battery packs and the storage battery packs, and the stability of the charging system is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
The corresponding part names indicated by the numbers and letters in the drawings:
1. an inverter; 11. a discharge main line; 12. a discharge circuit breaker; 13. a fuse; 14. a power supply circuit breaker; 2. a charger; 21. a charging main line; 3. a charging connection unit; 31. a splice module; 4. an anti-reverse charging protection circuit; 41. a first switch tube; 42. a second switching tube; 43. a protection resistor; 5. and (5) a storage battery pack.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
A high-power charging and discharging protection system for an automobile comprises: a charger 2 for connecting with commercial power; an inverter 1 for converting the voltage of the battery pack 5 into a voltage suitable for the electric equipment of the automobile; the charging connection units 3 are connected with the charger 2 in parallel, each charging connection unit 3 comprises a plurality of connector modules 31 connected in parallel, and each connector module 31 is used for being electrically connected with the storage battery pack 5 to be charged; the output end of the charger 2 is connected with a charging main line 21 corresponding to each charging connection unit 3, the input end of the inverter 1 is connected with a discharging main line 11 corresponding to each charging connection unit 3, and an anti-reverse charging protection circuit 4 is connected between the charging main line 21 and the discharging main line 11 corresponding to each connector module 31.
Specifically, the reverse charging prevention protection circuit 4 includes: the charging circuit comprises a first switch tube 41 connected with a charging main line 21 and a second switch tube 42 connected with the first switch tube 41 in parallel and connected with a discharging main line 11, wherein the first switch tube 41 is in one-way conduction with a storage battery pack 5 to be charged, the second switch tube 42 is in one-way cutoff with the storage battery pack 5 to be charged, the first switch tube 41 and the second switch tube 42 are one of a diode, a one-way thyristor and a triode, in the embodiment, the first switch tube 41 and the second switch tube 42 adopt diodes, the anode of the first switch tube 41 is connected with the charging main line 21, the cathode of the first switch tube 41 is connected with a connector module 31, the anode of the second switch tube 42 is connected with the cathode of the first switch tube 41, the cathode of the second switch tube 42 is connected with the discharging main line 11, and two ends of the first switch tube 41 are also connected with a protection resistor 43 in parallel.
The storage battery pack 5 comprises a plurality of sub-batteries connected in series, the voltage of each sub-battery is usually 12V, the voltage of the corresponding storage battery pack 5 can be 12V, 24V, 36V, 48V, 60V, 72V, etc., the charging voltage of the corresponding charger 2 is also matched with the storage battery pack 5, the input voltage of the charger 2 can be 220V or 380V, and the inversion voltage of the inverter 1 can be selected according to actual needs, such as 220V, 380V or any other voltage value; in the system, a charging connection unit 3 and an anti-reverse charging protection circuit 4 are carried in an automobile, and a charger 2 can be carried in the automobile or can be independently arranged; the charging main line 21 and the discharging main line 11 may operate simultaneously or only one line may operate.
Further, a discharge breaker and a fuse 13 are connected in series to the discharge main line 11, the discharge breaker can control the on/off of the discharge main line 11, the fuse 13 can protect a discharge line, and a power supply breaker 14 is connected to the output end of the inverter 1, so that the overall safety of the charging system is improved, and the entire charging system is protected.
During charging, the battery pack 5 to be charged is connected through the connector module 31, the charger 2 generates a charging voltage suitable for the battery pack 5 to realize the charging work of the battery pack 5, and during discharging, the storage battery discharges and penetrates into the inverter 1 through the discharging main line 11, the inverter 1 performs inversion processing on the input voltage, and the voltage is converted into a voltage suitable for automobile electric equipment; if one or more of the storage battery packs 5 are damaged or abnormal, the first switch tube 41 and the second switch tube 42 limit the current of the damaged or abnormal storage battery pack, so that the other storage battery packs and the storage battery pack 5 are not affected by the current of the damaged or abnormal storage battery pack, the normal storage battery pack 5 does not generate electricity leakage or electricity leakage, the other storage battery packs and the storage battery pack 5 are not discharged, and the stability of the charging system is improved. In addition, the power supply device is suitable for vehicles needing high-power supply, such as automobiles, motor homes, special vehicles and the like, and meets the charging requirement of the current new energy automobile.
Example two
A charging device comprising the charging and discharging protection system of the first embodiment.
EXAMPLE III
A charging pile, comprising the charging and discharging protection system of the first embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a car high-power battery connects in parallel series connection charging and discharging protection system which characterized in that includes:
the charger is used for being connected with commercial power;
the inverter is used for converting the voltage of the storage battery pack into a voltage suitable for electric equipment of the automobile; and the number of the first and second groups,
the charging connection units are connected with the charger in parallel and comprise a plurality of connector modules connected in parallel, and the connector modules are used for being electrically connected with a storage battery pack to be charged;
the output end of the charger is connected with a charging main line corresponding to each charging connection unit, the input end of the inverter is connected with a discharging main line corresponding to each charging connection unit, an anti-reverse charging protection circuit is connected between the charging main line and the discharging main line corresponding to each connector module, and the anti-reverse charging protection circuit comprises: the charging circuit comprises a charging main line, a first switch tube and a second switch tube, wherein the first switch tube is connected with the charging main line, the second switch tube is connected with the discharging main line in parallel, the first switch tube is in one-way conduction with the storage battery pack to be charged, and the second switch tube is in one-way cutoff with the storage battery pack to be charged.
2. The automobile high-power storage battery parallel-series charging and discharging protection system as claimed in claim 1, wherein the first switch tube is further connected with a protection resistor in parallel.
3. The automobile high-power storage battery parallel-series charging and discharging protection system as claimed in claim 1 or 2, wherein the first switch tube and the second switch tube are one of a diode, a one-way thyristor and a triode.
4. The automobile high-power storage battery parallel-series charging and discharging protection system as claimed in claim 1, wherein a discharging circuit breaker and a fuse are connected in series on the discharging main line.
5. The automobile high-power storage battery parallel-series charging and discharging protection system as claimed in claim 1, wherein a power supply breaker is connected to an output end of the inverter.
6. A charging device characterized by comprising the charge-discharge protection system according to any one of claims 1 to 5.
7. A charging pile characterized by comprising the charge-discharge protection system according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120815630.XU CN214647708U (en) | 2021-04-20 | 2021-04-20 | High-power charging and discharging protection system, charging device and charging pile for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120815630.XU CN214647708U (en) | 2021-04-20 | 2021-04-20 | High-power charging and discharging protection system, charging device and charging pile for automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214647708U true CN214647708U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120815630.XU Active CN214647708U (en) | 2021-04-20 | 2021-04-20 | High-power charging and discharging protection system, charging device and charging pile for automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214647708U (en) |
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2021
- 2021-04-20 CN CN202120815630.XU patent/CN214647708U/en active Active
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