CN110943508A - Two-way vehicle-mounted charger and new energy automobile - Google Patents
Two-way vehicle-mounted charger and new energy automobile Download PDFInfo
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- CN110943508A CN110943508A CN201910925569.1A CN201910925569A CN110943508A CN 110943508 A CN110943508 A CN 110943508A CN 201910925569 A CN201910925569 A CN 201910925569A CN 110943508 A CN110943508 A CN 110943508A
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- module
- mounted charger
- shell
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- bidirectional vehicle
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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
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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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
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
- H02J7/04—Regulation of charging current or voltage
- H02J7/06—Regulation of charging current or voltage using discharge tubes or semiconductor devices
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
- H05K7/20927—Liquid coolant without phase change
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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
Abstract
The invention discloses a bidirectional vehicle-mounted charger and a new energy automobile, wherein a direct current rectifying module and an alternating current filtering module of the bidirectional vehicle-mounted charger are arranged at the bottom of the front side of an inner cavity of a shell, a low-voltage system module is arranged above the direct current rectifying module and the alternating current filtering module through high-low voltage metal shielding plates, a power module is arranged at the rear side of the inner cavity of the shell, the direct current rectifying module and the alternating current filtering module are respectively and electrically connected with the power module, and each connector is arranged outside the shell; the cooling water channel is arranged in the wall, in contact with the power module, of the shell, the bidirectional vehicle-mounted charger adopts a modular design, and the height space of the inner cavity of the shell is reasonably and effectively utilized, so that non-heating components and other parts have larger flexible installation space, the utilization rate of the internal space of the shell is improved, the internal modules are compactly arranged, and the miniaturization of the vehicle-mounted charger is facilitated; the cooling water channel is arranged on the shell, so that the bidirectional vehicle-mounted charger has a good heat dissipation effect and can reliably and stably run.
Description
Technical Field
The invention relates to the technical field of new energy vehicles, in particular to a bidirectional vehicle-mounted charger and a new energy vehicle.
Background
The vehicle-mounted charger is a core part of a new energy automobile, and the bidirectional flow of energy, namely forward charging and reverse output current, is realized by the bidirectional vehicle-mounted charger, and the performance of the bidirectional vehicle-mounted charger directly influences the performance and the service life of a battery, so that the bidirectional vehicle-mounted charger has higher requirements on the reliability and the stability of the bidirectional vehicle-mounted charger.
Therefore, for those skilled in the art, it is an important technical problem to be solved urgently to design a bidirectional vehicle-mounted charger which has a compact structure, a good heat dissipation effect, and reliable and stable operation.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide a bidirectional vehicle-mounted charger, so that the bidirectional vehicle-mounted charger has a compact structure, has a good heat dissipation effect, and can reliably and stably operate.
The second purpose of the invention is to provide a new energy automobile comprising the bidirectional vehicle-mounted charger.
In order to achieve the purpose, the invention provides the following technical scheme:
a bidirectional vehicle-mounted charger comprises a shell, a low-voltage system module, a high-low voltage metal shielding plate, a direct current rectification module, an alternating current filtering module, a power module, a direct current high-voltage connector, a low-voltage connector and an alternating current high-voltage connector; the direct current rectifying module and the alternating current filtering module are arranged at the bottom of the front side of the inner cavity of the shell in parallel, the low-voltage system module is arranged above the direct current rectifying module and the alternating current filtering module through the high-low voltage metal shielding plate, the power module is arranged at the rear side of the inner cavity of the shell, the direct current rectifying module and the alternating current filtering module are respectively and electrically connected with the power module, the direct current high-voltage connector, the low-voltage connector and the alternating current high-voltage connector are all arranged outside the shell, the direct current high-voltage connector is electrically connected with the direct current rectifying module, the low-voltage connector is electrically connected with the low-voltage system module, and the alternating current high-voltage connector is electrically connected with the alternating current filtering module; and a cooling water channel is arranged in at least the wall of the shell, which is in contact with the power module, and the shell is provided with two openings for communicating the cooling water channel with the outside.
Preferably, a mounting groove is formed at the bottom of the front side of the inner cavity of the shell, and the alternating current filter module is arranged in the mounting groove so as to realize shielding between the alternating current filter module and the direct current rectifier module and between the alternating current filter module and the power module through the side wall of the mounting groove.
Preferably, the high-low voltage metal shielding plate comprises a transverse plate and a vertical plate which are connected with each other, the transverse plate is used for forming shielding between the low-voltage system module and the alternating current filtering module and between the low-voltage system module and the direct current rectifying module, and the vertical plate is used for forming shielding between the power module and the low-voltage system module.
Preferably, the shell includes upper cover and inferior valve, the upper cover with inferior valve sealing fit connects and encloses the inner chamber of shell, direct current rectifier module alternating current filter module and power module all assemble in the bottom of holding the groove of inferior valve, the cooling water course set up in the inferior valve diapire.
Preferably, the lower shell comprises a shell and a water channel cover plate, a water channel is arranged at the bottom of the shell, and the water channel cover plate covers the upper part of the water channel and forms the cooling water channel with the water channel.
Preferably, a heat dissipation rib is arranged in the water tank along the flowing direction of the cooling liquid.
Preferably, a heat conduction medium is arranged between the upper cover and the heating component at the top of each module in the lower shell.
Preferably, the vehicle-mounted bidirectional charger further comprises an NTC water temperature line, the NTC water temperature line is in communication connection with the low-voltage system module, the NTC water temperature line is used for measuring the temperature of cooling liquid in the cooling water channel, and the low-voltage system module controls derating operation of the bidirectional vehicle-mounted charger when the temperature of the cooling liquid exceeds a preset value.
Preferably, the shell is provided with a ventilation valve for balancing internal and external air pressure.
Preferably, the power module includes a PFC power factor correction module and a transformer module, a first heat generating component of the PFC power factor correction module presses the heat conducting medium to be closely attached to the housing of the PFC power factor correction module, and a second heat generating component of the transformer module presses the heat conducting medium to be closely attached to the housing of the transformer module.
Preferably, the housing and the high-low voltage metal shielding plate are made of aluminum alloy.
Preferably, the housing is provided with a mounting foot for fixing the bidirectional vehicle-mounted charger.
A new energy automobile comprises the bidirectional vehicle-mounted charger.
The invention provides a bidirectional vehicle-mounted charger, which comprises a shell, a low-voltage system module, a high-low voltage metal shielding plate, a direct-current rectifying module, an alternating-current filtering module, a power module, a direct-current high-voltage connection plug-in unit, a low-voltage plug-in unit and an alternating-current high-voltage plug-in unit, wherein the direct-current rectifying module and the alternating-current filtering module are arranged at the bottom of the front side of an inner cavity of the shell in parallel, the low-voltage system module is arranged above the direct-current rectifying module and the alternating-current filtering module through the high-low voltage metal shielding plate, the power module is arranged at the rear side of the inner cavity of the shell, the direct-current rectifying module and the alternating-current filtering module are respectively electrically connected with the power module, the direct-current high-voltage plug-in unit, the alternating current high-voltage connector is electrically connected with the alternating current filtering module; at least a cooling water channel is arranged in the wall, which is in contact with the power module, of the shell, the shell is provided with two openings for communicating the cooling water channel with the outside, and when the bidirectional vehicle-mounted charger is used, one of the two openings is a water inlet, and the other opening is a water outlet, so that cooling liquid circularly flows in the cooling water channel to carry away heat generated by heating components of the bidirectional vehicle-mounted charger; the bidirectional vehicle-mounted charger adopts a modular design, reasonably and effectively utilizes the height space of the inner cavity of the shell, so that non-heating components and other components have larger flexible installation space, the utilization rate of the internal space of the shell is improved, and all modules in the bidirectional vehicle-mounted charger are compactly arranged, thereby being beneficial to realizing the miniaturization of the vehicle-mounted charger; the cooling water channel is arranged on the shell, so that the bidirectional vehicle-mounted charger has a good heat dissipation effect and can reliably and stably run.
The invention also provides a new energy automobile which comprises the bidirectional vehicle-mounted charger, and the new energy automobile also has the technical effect of the bidirectional vehicle-mounted charger because the bidirectional vehicle-mounted charger is adopted.
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 the drawings without creative efforts.
Fig. 1 is an exploded view of a bidirectional vehicle-mounted charger according to an embodiment of the present invention;
fig. 2 is an exploded view of a lower shell of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 3 is a bottom view of a lower shell of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 4 is an isometric view of a power module of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 5 is a schematic layout diagram of heating components of a power module of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 6 is a high-voltage connection diagram of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 7 is a schematic diagram of high-voltage connection in another direction of the bidirectional vehicle-mounted charger according to the embodiment of the invention;
fig. 8 is a schematic diagram of low-voltage connection of the bidirectional vehicle-mounted charger according to the embodiment of the invention.
In the figure:
1 is a shell; 101 is an upper cover; 102 is a lower shell; 1021 is a shell; 1022 is the water course cover plate; 1023 is a water tank; 1024 are heat dissipation ribs; 103 is a mounting groove; 2 is a direct current rectification module; 3 is an alternating current filtering module; 4 is a high-low voltage metal shielding plate; 5 is a low-voltage system module; 6 is a power module; 601 is a PFC power factor correction module; 602 is a transformer module 602; 6a is a first heat generating component; 6b is a second heating element; 7 is an alternating current high voltage connector; 8 is a direct current high voltage connector; 9 is a low-voltage connector; 10 is an opening; 11 is a mounting pin; 12 is a vent valve.
Detailed Description
The invention has the core that the invention provides the bidirectional vehicle-mounted charger, so as to achieve the purposes of compact structure, good heat dissipation effect and reliable and stable operation.
The other core of the invention is to provide the new energy automobile comprising the bidirectional vehicle-mounted charger.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is an exploded view of a bidirectional vehicle charger according to an embodiment of the present invention.
The embodiment of the invention provides a bidirectional vehicle-mounted charger which comprises a shell 1, a low-voltage system module 5, a high-low voltage metal shielding plate 4, a direct current rectification module 2, an alternating current filtering module 3, a power module 6, a direct current high-voltage connector 8, a low-voltage connector 9 and an alternating current high-voltage connector 7.
The direct current rectifying module 2 and the alternating current filtering module 3 are arranged at the bottom of the front side of the inner cavity of the shell 1 side by side, the low-voltage system module 5 is arranged above the direct current rectifying module 2 and the alternating current filtering module 3 through the high-low voltage metal shielding plate 4, the power module 6 is arranged at the rear side of the inner cavity of the shell 1, the direct current rectifying module 2 and the alternating current filtering module 3 are respectively and electrically connected with the power module 6, the direct current high-voltage connector 8, the low-voltage crimping connector 9 and the alternating current high-voltage connector 7 are all arranged outside the shell 1, the direct current high-voltage connector 8 is electrically connected with the direct current rectifying module 2, the low-voltage connector 9 is electrically connected with the low-voltage system module 5, and the; at least a cooling water channel is arranged in the wall, in contact with the power module 6, of the shell 1, two openings 10 for communicating the cooling water channel with the outside are arranged on the shell 1, and when the bidirectional vehicle-mounted charger is used, one of the two openings 10 is a water inlet, and the other one is a water outlet, so that heat generated by heating components of the bidirectional vehicle-mounted charger is taken away by cooling liquid in the circulating flow of the cooling water channel.
Compared with the prior art, the bidirectional vehicle-mounted charger provided by the embodiment of the invention adopts a modular design, reasonably and effectively utilizes the height space of the inner cavity of the shell 1, so that non-heating components and other parts have larger flexible installation space, the utilization rate of the inner space of the shell 1 is improved, the arrangement of all modules in the interior is compact, and the miniaturization of the vehicle-mounted charger is facilitated; be provided with the cooling water course on the shell 1, make this two-way on-vehicle motor that fills have good radiating effect, can reliable steady operation.
Preferably, as shown in fig. 1, in the embodiment of the present invention, a mounting groove 103 is formed at the bottom of the front side of the inner cavity of the housing 1, and the ac filter module 3 is embedded in the mounting groove 103, so that the shielding between the ac filter module 3 and the dc rectifier module 2 and between the ac filter module 3 and the power module 6 is realized through the side wall of the mounting groove 103.
High-low voltage metal shield 4 is used for forming the shielding between low pressure system module 5 and the alternating current filter module 3 and the direct current rectifier module 2 of below, form the shielding simultaneously between low pressure system module 5 and the power module 6 at rear, consequently high-low voltage metal shield 4 includes interconnect's diaphragm and riser, the diaphragm is used for forming the shielding between low pressure system module 5 and alternating current filter module 3 and between low pressure system module 5 and direct current rectifier module 2, the riser is used for forming the shielding between power module 6 and low pressure system module 5, furthermore, the one end of keeping away from the riser at the diaphragm still is provided with dodges the groove, this dodges the groove and is used for holding the slot of low pressure system module 5.
Through the structure, good electromagnetic shielding can be formed among all components of the bidirectional vehicle-mounted charger, and mutual interference of all components during working is avoided.
Preferably, as shown in fig. 1, the housing 1 includes an upper cover 101 and a lower cover 102, a containing groove for containing each component is formed on the lower cover 102, the upper cover 101 and the lower cover 102 are connected in a sealing fit manner to enclose an inner cavity of the housing 1, so as to shield the components inside the housing 1 from the outside, effectively solve the electromagnetic interference of the vehicle-mounted charger to the external environment, and the upper dc rectification module 2, alternating current filter module 3 and power module 6 all assemble in the bottom of the appearance groove of inferior valve 102, specifically, direct current rectifier module 2 passes through the fix with screw in inferior valve 102 first side bottom, alternating current filter module 3 passes through the fix with screw in the mounting groove 103 of inferior valve 102 second side bottom, high-low voltage metal shield plate 4 is located alternating current filter module 3 and direct current rectifier module 2's upper portion, with the screw-fastening on alternating current filter module 3 and casing 1021, the cooling water course sets up in inferior valve 102 diapire.
The sealing and fixing between the upper cover 101 and the lower shell 102 are realized by dispensing and screw locking between the upper cover 101 and the lower shell 102 or friction welding, so that the inside of the bidirectional vehicle-mounted charger is isolated from the external environment.
As shown in fig. 2 and 3, the lower case 102 includes a case 1021 and a water passage cover plate 1022, a water channel 1023 is disposed at the bottom of the case 1021, the case 1021 and the water passage cover plate 1022 are welded by friction stir welding to form the lower case 102, and the water passage cover plate 1022 covers the water channel 1023 and encloses the water channel 1023 to form a cooling water passage.
Further optimize above-mentioned technical scheme, be provided with heat dissipation muscle 1024 along the coolant liquid flow direction in the basin 1023 to increase water course heat radiating area, improve the radiating efficiency.
Preferably, a plurality of heat generating components, such as inductors, are disposed on the circuit board at the top of each module, and a heat conducting medium is disposed between the heat generating components at the top of each module in the upper cover 101 and the lower cover 102 to dissipate the heat at the top of each module in time.
Preferably, the bidirectional vehicle-mounted charger further comprises an NTC water temperature line, the NTC water temperature line is in communication connection with the low-voltage system module 5, the NTC water temperature line is used for measuring the temperature of cooling liquid in the cooling water channel, and the low-voltage system module 5 controls the bidirectional vehicle-mounted charger to derate when the temperature of the cooling liquid exceeds a preset value, so that the bidirectional vehicle-mounted charger is effectively protected, and the reliable and stable operation of the bidirectional vehicle-mounted charger is guaranteed.
Preferably, as shown in fig. 3, the housing 1 is provided with a ventilation valve 12 for balancing the internal and external air pressures.
Referring to fig. 4 and 5, the power module 6 includes a PFC power factor correction module 601 and a transformer module 602, the two transformer modules 602 are disposed side by side on one side of the PFC power factor correction module 601, a first heat generating component 6a of the PFC power factor correction module 601 presses the heat conducting medium to cling to a casing 1021 of the PFC power factor correction module 601, a second heat generating component 6b of the transformer module 602 presses the heat conducting medium to cling to the casing 1021 of the transformer module 602, so as to guide heat into the housing 1, and conduct heat of the heat generating components out by using the cooling liquid flowing in the cooling water channel at the bottom of the housing 1.
The heat transfer medium includes, but is not limited to, heat transfer foil paper, and heat transfer silicone grease.
As shown in fig. 6-8, embodiments of the present invention also provide a reliable high and low voltage connection scheme, where the double-headed arrow indicates the wiring direction.
(1) High voltage connection scheme
As shown in fig. 6 and 7, in the high-voltage connection scheme, when the vehicle-mounted charger is charged in the forward direction, external high-voltage ac power is input through the ac high-voltage connector 7, and is filtered through the EMC of the ac filter module 3, and the current enters the power module 6, is corrected by the PFC power factor correction module of the power module 6, then flows into the transformer module 602 of the power board for transformation, finally flows through the dc rectifier module 2, and is output as high-voltage dc power through the dc high-voltage connector 8.
When the vehicle-mounted charger discharges reversely, the current flows in the opposite direction. The vehicle-mounted battery pack inputs high-voltage direct current from a direct current high-voltage connector 8, transforms the voltage through a transformer module 602 in a power module 6 after passing through a direct current rectification module 2 in the machine, corrects the voltage through a PFC power factor correction module in the power module 6, and finally provides high-voltage alternating current for a power grid through an alternating current filtering module 3 and an alternating current high-voltage connector 7.
(2) Low voltage connection scheme
As shown in fig. 8, the entire BMS management system inputs a command, inputs a signal to the low voltage system module 5 through the low voltage connector 9, the system board receives the command, transmits the entire command to the circuit board of the power module 6, the circuit board of the power module 6 adjusts the output power of the bidirectional vehicle charger, and feeds the signal back to the low voltage system module 5, and the bidirectional vehicle charger reports the operation status of the bidirectional vehicle charger to the entire BMS management system through the low voltage system module 5.
And high-voltage interlocking in the direct-current high-voltage connector 8 feeds back the on-off condition of the direct-current high-voltage connector 8 to the low-voltage system module 5, so that the on-off condition of the output current of the vehicle-mounted charger is monitored by the whole BMS management system.
Preferably, in the embodiment of the present invention, the housing 1 and the high-low voltage metal shielding plate 4 are made of aluminum alloy, so as to achieve light weight of the bidirectional vehicle charger.
Preferably, the casing 1 is provided with mounting feet 11 for fixing a bidirectional vehicle charger.
Based on the bidirectional vehicle-mounted charger, the embodiment of the invention also provides a new energy automobile comprising the bidirectional vehicle-mounted charger, and the technical effect of the new energy automobile refers to the embodiment because the new energy automobile adopts the bidirectional vehicle-mounted charger.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
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 (13)
1. A bidirectional vehicle-mounted charger is characterized by comprising a shell, a low-voltage system module, a high-low voltage metal shielding plate, a direct current rectifying module, an alternating current filtering module, a power module, a direct current high-voltage connector, a low-voltage connector and an alternating current high-voltage connector; the direct current rectifying module and the alternating current filtering module are arranged at the bottom of the front side of the inner cavity of the shell in parallel, the low-voltage system module is arranged above the direct current rectifying module and the alternating current filtering module through the high-low voltage metal shielding plate, the power module is arranged at the rear side of the inner cavity of the shell, the direct current rectifying module and the alternating current filtering module are respectively and electrically connected with the power module, the direct current high-voltage connector, the low-voltage connector and the alternating current high-voltage connector are all arranged outside the shell, the direct current high-voltage connector is electrically connected with the direct current rectifying module, the low-voltage connector is electrically connected with the low-voltage system module, and the alternating current high-voltage connector is electrically connected with the alternating current filtering module; and a cooling water channel is at least arranged in the wall of the shell, which is in contact with the power module, and the shell is provided with two openings for communicating the cooling water channel with the outside.
2. The bidirectional vehicle-mounted charger according to claim 1, wherein a mounting groove is formed at the bottom of the front side of the inner cavity of the housing, and the alternating current filter module is disposed in the mounting groove to realize shielding between the alternating current filter module and the direct current rectifier module and between the alternating current filter module and the power module through the side wall of the mounting groove.
3. The bidirectional vehicle-mounted charger according to claim 1 or 2, characterized in that the high-low voltage metal shielding plate comprises a horizontal plate and a vertical plate which are connected with each other, the horizontal plate is used for shielding between the low-voltage system module and the alternating current filtering module and between the low-voltage system module and the direct current rectifying module, and the vertical plate is used for shielding between the power module and the low-voltage system module.
4. The bidirectional vehicle-mounted charger according to claim 1 or 2, wherein the housing includes an upper cover and a lower shell, the upper cover and the lower shell are connected in a sealing fit manner to enclose an inner cavity of the housing, the dc rectifying module, the ac filtering module and the power module are all assembled at the bottom of the containing groove of the lower shell, and the cooling water channel is arranged in the bottom wall of the lower shell.
5. The bidirectional vehicle-mounted charger according to claim 4, wherein the lower casing includes a casing and a water channel cover plate, a water tank is disposed at the bottom of the casing, and the water channel cover plate covers the water tank and forms the cooling water channel with the water tank.
6. The bidirectional vehicle-mounted charger according to claim 5, wherein a heat dissipation rib is arranged in the water tank along the flowing direction of the cooling liquid.
7. The bidirectional vehicle-mounted charger according to claim 4, wherein a heat conduction medium is arranged between the upper cover and the heating element at the top of each module in the lower casing.
8. The bidirectional vehicle-mounted charger according to any one of claims 1-2 and 5-7, further comprising an NTC water temperature line, wherein the NTC water temperature line is in communication connection with the low-voltage system module, the NTC water temperature line is used for measuring the temperature of the cooling liquid in the cooling water channel, and the low-voltage system module controls derating operation of the bidirectional vehicle-mounted charger when the temperature of the cooling liquid exceeds a preset value.
9. The bidirectional vehicle-mounted charger according to any one of claims 1-2 and 5-7, characterized in that a ventilation valve for balancing internal and external air pressure is arranged on the housing.
10. The bidirectional vehicle-mounted charger according to any one of claims 1-2 and 5-7, wherein the power module comprises a PFC power factor correction module and a transformer module, a first heating element of the PFC power factor correction module presses the heat-conducting medium to be tightly attached to a housing of the PFC power factor correction module, and a second heating element of the transformer module presses the heat-conducting medium to be tightly attached to the housing of the transformer module.
11. The bidirectional vehicle-mounted charger according to any one of claims 1-2 and 5-7, characterized in that the housing and the high-low voltage metal shielding plate are made of aluminum alloy.
12. The bidirectional vehicle-mounted charger according to any one of claims 1-2 and 5-7, characterized in that the housing is provided with mounting feet for fixing the bidirectional vehicle-mounted charger.
13. A new energy automobile, characterized by comprising the bidirectional vehicle-mounted charger according to any one of claims 1-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925569.1A CN110943508B (en) | 2019-09-27 | 2019-09-27 | Bidirectional vehicle-mounted charger and new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910925569.1A CN110943508B (en) | 2019-09-27 | 2019-09-27 | Bidirectional vehicle-mounted charger and new energy automobile |
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| Publication Number | Publication Date |
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| CN110943508A true CN110943508A (en) | 2020-03-31 |
| CN110943508B CN110943508B (en) | 2023-09-29 |
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| CN201910925569.1A Active CN110943508B (en) | 2019-09-27 | 2019-09-27 | Bidirectional vehicle-mounted charger and new energy automobile |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542873A (en) * | 2020-12-16 | 2021-03-23 | 中车永济电机有限公司 | Charging and discharging device |
| CN113232533A (en) * | 2021-05-25 | 2021-08-10 | 科世达(上海)机电有限公司 | Vehicle and charger |
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| CN113232533A (en) * | 2021-05-25 | 2021-08-10 | 科世达(上海)机电有限公司 | Vehicle and charger |
| CN113232533B (en) * | 2021-05-25 | 2024-02-20 | 科世达(上海)机电有限公司 | Vehicle and charger |
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| CN110943508B (en) | 2023-09-29 |
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