CN113910938A - DC charging equipment - Google Patents
DC charging equipment Download PDFInfo
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- CN113910938A CN113910938A CN202111057918.6A CN202111057918A CN113910938A CN 113910938 A CN113910938 A CN 113910938A CN 202111057918 A CN202111057918 A CN 202111057918A CN 113910938 A CN113910938 A CN 113910938A
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- cabin
- direct current
- cabinet body
- power
- alternating current
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 92
- 230000017525 heat dissipation Effects 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 10
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 108010066278 cabin-4 Proteins 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/20—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by converters located in the vehicle
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
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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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates in particular to a direct current charging device comprising: the intelligent cabinet comprises a cabinet body, wherein an alternating current input unit and a direct current conversion output unit are arranged in the cabinet body, the alternating current input unit is used for introducing external alternating current and supplying the external alternating current to the direct current conversion output unit, and the direct current conversion output unit is used for converting the alternating current into direct current and outputting the direct current; a partition board is arranged in the cabinet body, the partition board divides the cabinet body into different cabins, and each cabin is used for electric components; each cabin forms an opening at the front side and/or the rear side of the cabinet body; the front side and/or the rear side of the cabinet body are/is provided with cabinet doors, and the cabinet doors are used for closing the openings of the corresponding cabins when being closed; the direct current conversion output unit comprises a power module, a heat dissipation opening corresponding to the front and the back of the power module is arranged on the cabinet body, and the heat dissipation opening is used for heat dissipation of the power module. Compared with the prior art, the invention is convenient for the overhaul and maintenance of the electric parts in each cabin, relatively reduces the workload of overhaul and maintenance and improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of electric automobile charging equipment, in particular to direct-current charging equipment.
Background
The development speed of new energy automobiles is witnessed in recent two years, and the new energy automobile industry is one of the leading world industries in China at present. Electric vehicles have also been rapidly developed as a new energy vehicle, and meanwhile, the demand for electric vehicle charging equipment is also continuously increasing.
Chinese utility model patent with publication number CN212827943U discloses a charging system and dc charging device, including the cabinet body, the shutter that can open and shut is all installed on the upper portion of the cabinet body left and right sides curb plate, and the cabinet door is all installed to both sides around the cabinet body. The cabinet body is internally provided with a power module cabin (namely a power conversion cabin), a main control cabin, an alternating current incoming line cabin (namely a power supply cabin) and a power distribution cabin, corresponding electric parts are installed in each cabin, and the cabins are mutually separated through partition plates. The power conversion cabin is positioned at the upper part in the cabinet body, and the left side and the right side of the power conversion cabin are both provided with openings which correspond to the left side and the right side of the shutter; the main control cabin is positioned on the front side of the power conversion cabin, and the front side of the main control cabin is provided with an opening; the power supply cabin is positioned at the lower part in the cabinet body, and the front side of the power supply cabin is provided with an opening; the power distribution cabin is located at the rear side of the power supply cabin, and the rear side of the power distribution cabin is an opening.
When the incoming lines of the electric elements in the cabins of the direct current charging device are overhauled and maintained, the openings of the cabins are located in different vertical planes, so that the cabinet doors on the front side and the rear side of the cabinet body and the shutters on the left side and the right side of the cabinet body need to be opened respectively for overhauling and maintaining, the overhauling and maintenance of the electric elements in the cabins are not convenient, the workload of overhauling and maintenance is increased, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to provide direct-current charging equipment to solve the problems that in the prior art, due to the fact that openings of cabins are located in different vertical planes, the overhauling and maintenance workload is increased and the working efficiency is reduced.
In order to achieve the purpose, the direct current charging equipment adopts the following technical scheme:
a dc charging apparatus comprising:
the intelligent cabinet comprises a cabinet body, wherein an alternating current input unit and a direct current conversion output unit are arranged in the cabinet body, the alternating current input unit is used for introducing external alternating current into the cabinet body and supplying the external alternating current to the direct current conversion output unit, and the direct current conversion output unit is used for converting the alternating current into direct current and outputting the direct current;
a partition board is arranged in the cabinet body, the partition board divides the space in the cabinet body into different cabins, and each cabin is used for installing corresponding electric parts of the alternating current input unit and corresponding electric parts of the direct current conversion output unit;
each cabin forms an opening at the front side and/or the rear side of the cabinet body;
the front side and/or the rear side of the cabinet body are/is provided with cabinet doors which are used for closing the openings of the corresponding cabins when the cabinet doors are closed.
The direct current conversion output unit comprises a power module, the power module is used for converting externally introduced alternating current into direct current, a heat dissipation opening corresponding to the power module in the front and back is formed in the cabinet body, and the heat dissipation opening is used for enabling the power module to dissipate heat from front to back or from back to front.
The beneficial effects of the above technical scheme are that: the direct current charging device of the invention can not only lead external alternating current into the direct current charging device through the alternating current input unit, convert the led alternating current into direct current through the direct current conversion output unit and output the direct current, but also can divide the space in the cabinet body into different cabins through the partition boards, thereby meeting the installation requirements of corresponding electrical parts of the alternating current input unit and corresponding electrical parts of the direct current conversion output unit, meanwhile, the opening of each cabin is arranged at the front side and/or the rear side, and a cabinet door for closing the corresponding cabin opening is arranged at the front side and/or the rear side of the cabinet body, only need open the cabinet door alright of cabinet body front side and/or rear side like this and overhaul the maintenance, compare in prior art, made things convenient for the maintenance of electric spare in each cabin, reduced the work load of overhauing the maintenance relatively, improved work efficiency.
In addition, the power module is arranged on the direct current conversion output unit, so that the function of converting alternating current into direct current by the direct current conversion output unit is realized through the power module, and meanwhile, on the premise that all electric parts in the cabinet body are arranged in the front and back direction, the heat dissipation ports corresponding to the front and back of the power module are arranged on the cabinet body, so that the heat dissipation of the power module is facilitated.
Furthermore, the number of the direct current conversion output units is two, and the two direct current conversion output units are arranged in the same vertical arrangement plane side by side.
The beneficial effects of the above technical scheme are that: the two direct current conversion output units are arranged, and the conversion of alternating current and direct current and the output of direct current can be respectively carried out through the two direct current conversion output units, so that the efficiency of converting alternating current into direct current and outputting direct current is improved relative to one direct current conversion output unit; the two direct current conversion output units are arranged in the same vertical arrangement plane side by side, so that corresponding electric parts of the direct current conversion output units can be conveniently overhauled and maintained by opening the cabinet doors on the front side and/or the rear side of the cabinet body, the workload is relatively reduced, and the working efficiency is improved.
Further, the cabin includes the power cabin, alternating current input unit installs in the power cabin, and the power cabin sets up between two direct current conversion output unit to set up in same vertical arrangement plane with two direct current conversion output unit.
The beneficial effects of the above technical scheme are that: the alternating current input unit is arranged in the power supply cabin, so that the electric parts of the alternating current input unit are separated from other electric parts through the power supply cabin, and the use safety of the alternating current input unit is ensured; the power supply cabin is arranged between the two direct current conversion output units, so that the alternating current input unit is conveniently connected with the direct current conversion output units on the two sides, the connection circuit is simplified, and the connection distance is relatively shortened; the power supply cabin and the two direct current conversion output units are arranged in the same vertical arrangement plane, so that corresponding electric parts of the alternating current input unit and corresponding electric parts of the direct current conversion output units can be conveniently overhauled by opening the cabinet door on one side.
Further, the power supply cabin includes inlet wire cabin and switch cabin, alternating current input unit includes that female row of inlet wire and high-pressure on-off switch are arranged, female the arranging of inlet wire is installed in the inlet wire cabin, and female the arranging of inlet wire is used for supplying outside alternating current to introduce the cabinet internally, high-pressure on-off switch installs in the on-off cabin, and high-pressure on-off switch is used for the break-make that control current carried, and high-pressure on-off switch is arranged with female the row connection of inlet wire.
The beneficial effects of the above technical scheme are that: the incoming line busbar and the high-voltage on-off switch in the alternating current input unit are arranged in a sub-cabin mode, so that the safety of the incoming line busbar and the high-voltage on-off switch during working is improved, and the safe use of the direct current charging equipment is facilitated.
Further, the switch cabin is located at the upper part in the cabinet body, and the incoming line cabin is located at the lower part in the cabinet body.
The beneficial effects of the above technical scheme are that: the switch cabin is arranged on the upper part of the cabinet body, and the wire inlet cabin is arranged on the lower part of the cabinet body, so that the arrangement of the alternating current wire inlet is facilitated, the length of the alternating current wire inlet cable is relatively shortened, and the cost is reduced.
Further, the cabin still includes the main control cabin, installs main control unit in the main control cabin, and main control unit is used for controlling whole direct current charging equipment's power distribution, and the main control cabin is located the dorsal side of wire inlet cabin.
The beneficial effects of the above technical scheme are that: set up the main control cabin, conveniently control whole direct current battery charging outfit through the main control unit in the main control cabin and carry out power distribution, simultaneously through setting up the main control cabin in the dorsal part in the wire inlet cabin, utilized the wire inlet cabin remaining space of arranging in cabinet body fore-and-aft direction, make full use of the internal usable space of cabinet, also reduced whole direct current battery charging outfit's occupation space simultaneously.
Further, the direct current conversion output unit also comprises a power relay; the cabin also comprises a power conversion cabin and a power distribution cabin, and the power conversion cabin is used for installing the power module; the power distribution cabin is used for installing a power relay, and the power relay is used for controlling the output of power.
The beneficial effects of the above technical scheme are that: the power module and the power relay in the direct current conversion output unit are respectively arranged in the power conversion cabin and the power distribution cabin, so that the purpose of arrangement of the power module and the power relay in the sub-cabin is realized, and the working safety of the direct current conversion output unit is improved.
Further, the power conversion cabin is located at the upper part of the cabinet body, the power distribution cabin is located at the lower part of the cabinet body, the direct current charging device further comprises a shunt busbar located above the power conversion cabin, and the shunt busbar is used for shunting alternating current introduced by the alternating current input unit to the power module.
The beneficial effects of the above technical scheme are that: the power conversion cabin is arranged at the upper part in the cabinet body, and the power distribution cabin is arranged at the lower part in the cabinet body, so that the shunting busbar is conveniently arranged above the power conversion cabin, and meanwhile, the connection between the shunting busbar and a power module in the power conversion cabin is also facilitated.
Further, the shunting busbar comprises a head end and a tail end, the head end is used for being connected with the alternating current input unit, and the size of the cross section of the shunting busbar is gradually reduced from the head end to the tail end.
The beneficial effects of the above technical scheme are that: the size setting of the cross section of the shunt busbar is gradually reduced from the head end to the tail end, so that different cross section sizes can be adopted in different parts according to different currents on the shunt busbar, the using amount of shunt busbar manufacturing materials is effectively reduced, and the cost is reduced on the premise of ensuring normal work of equipment.
Furthermore, the cabin also comprises a main control cabin, a main controller is arranged in the main control cabin, and the main controller is used for controlling the power distribution of the whole direct current charging equipment; the cabin also comprises a unit control cabin, a unit controller is installed in the unit control cabin and used for assisting the main controller in power distribution, and the unit control cabin is located on the back side of the power distribution cabin.
The beneficial effects of the above technical scheme are that: through setting up unit controller to supplementary main control unit carries out power distribution, sets up unit control cabin, and through setting up the dorsal part in power distribution cabin with unit rate control cabin, make full use of the internal usable space of cabinet, reduced whole DC charging equipment's occupation space.
Drawings
Fig. 1 is a front view of a dc charging apparatus according to the present invention;
FIG. 2 is a right side view of the DC charging apparatus of the present invention;
fig. 3 is a front view of the internal structure of the dc charging device of the present invention;
fig. 4 is a rear view of the internal structure of the dc charging device of the present invention;
fig. 5 is a schematic structural diagram of a shunt bus bar in the dc charging device according to the present invention;
fig. 6 is a schematic structural diagram of a power relay set in the dc charging device according to the present invention.
In the figure: 1. a cabinet body; 1-1, a top cover; 1-2, a side cabinet door; 1-3, a shutter; 1-4, a left side plate; 1-5, right side plate; 1-6, a middle cabinet door; 2. a base; 3. a wire inlet cabin; 3-1, feeding a busbar; 4. a switch cabin; 4-1, frame circuit breaker; 4-2, an alternating current contactor; 5. a main control cabin; 5-1, a main controller; 6. a power conversion compartment; 6-1, a power module; 7. a power distribution bay; 7-1, a positive power relay group; 7-1-1 of positive copper bar; 7-2, a negative power relay group; 7-2-1, negative copper bar; 7-3, a power relay; 8. a unit control cabin; 8-1, a unit controller; 9. shunting a busbar; 9-1, a first connection hole; 9-2, a second connecting hole; 9-3, a third connecting hole; 9-4, a first mounting hole; 9-5, head end; 9-6, end; 9-7, a second mounting hole; 10. and (7) mounting the plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
The preferred embodiment of the direct current charging device in the invention is shown in fig. 1 and fig. 2, the direct current charging device comprises a base 2 and a cabinet body 1, wherein the cabinet body 1 is installed on the base 2, the cabinet body 1 comprises a top cover 1-1, a left side plate 1-4 and a right side plate 1-5, in addition, side cabinet doors 1-2 and a middle cabinet door 1-6 are respectively arranged at the front side and the rear side of the cabinet body 1, one side of the cabinet body 1 is provided with two side cabinet doors 1-2, and the two side cabinet doors 1-2 are positioned at the left side and the right side of the middle cabinet door 1-6. The upper parts of the side cabinet doors 1-2 are all provided with shutters 1-3 for heat dissipation. In addition, a partition board (not marked in the figure) is arranged in the cabinet body 1 and divides the space in the cabinet body 1 into different cabins.
The cabin comprises a power supply cabin, as shown in fig. 4, the power supply cabin comprises an incoming line cabin 3 and a switch cabin 4, the switch cabin 4 is located at the upper part of the cabinet body 1, the incoming line cabin 3 is located at the lower part of the cabinet body 1, the rear side of the incoming line cabin 3 is provided with an opening, and the front side and the rear side of the switch cabin 4 are both provided with openings. The cabinet body 1 is also internally provided with an alternating current input unit, the alternating current input unit is used for introducing external alternating current into the cabinet body 1, the alternating current input unit comprises an incoming busbar 3-1 and a high-voltage on-off switch, the incoming busbar 3-1 is installed in the incoming cabin 3, the high-voltage on-off switch comprises a frame circuit breaker 4-1 and two alternating current contactors 4-2 connected in parallel, the frame circuit breaker 4-1 and the two alternating current contactors 4-2 are both installed in the switch cabin 4, and the alternating current input unit is installed in the power supply cabin. The incoming busbar 3-1 is used for leading external alternating current into the cabinet body 1; the frame circuit breaker 4-1 and the two alternating current contactors 4-2 are used for controlling on-off of current transmission, the incoming line busbar 3-1 is connected with the frame circuit breaker 4-1, and the frame circuit breaker 4-1 is respectively connected with the two alternating current contactors 4-2.
Still be equipped with direct current conversion output unit in the cabinet body 1, direct current conversion output unit is used for converting the alternating current that alternating current input unit introduced into direct current and export, direct current conversion output unit is equipped with two, two direct current conversion output units set up side by side in same vertical arrangement plane, and be located the left and right sides of the internal 1 cabinet, inlet wire cabin 3 and switch cabin 4 are located between two direct current conversion output unit (shown in fig. 3), the power cabin is located between two direct current conversion output unit promptly, and set up in same vertical arrangement plane with two direct current conversion output unit.
The direct current conversion output unit comprises a power module 6-1 and a power relay group, wherein the power module 6-1 is used for converting externally introduced alternating current into direct current and transmitting the direct current to the power relay groups in the two direct current conversion output units; the power relay group is used for controlling power output, as shown in fig. 6, the power relay group includes a positive power relay group 7-1 and a negative power relay group 7-2, the positive power relay group 7-1 is composed of fifteen power relays 7-3 and corresponding positive copper bars 7-1-1, and the negative power relay group 7-2 is composed of fifteen power relays 7-3 and corresponding negative copper bars 7-2-1.
As shown in fig. 4, the cabin further includes a power conversion cabin 6 and a power distribution cabin 7, the power module 6-1 is installed in the power conversion cabin 6, and the positive power relay group 7-1 and the negative power relay group 7-2 are both installed in the power distribution cabin 7. The power conversion cabin 6 and the power distribution cabin 7 are respectively provided with two power conversion cabins 6, the two power conversion cabins 6 are respectively positioned in the two direct current conversion output units, the two power distribution cabins 7 are respectively positioned in the two direct current conversion output units, the power conversion cabin 6 is positioned at the upper part of the cabinet body 1, the power distribution cabin 7 is positioned at the lower part of the cabinet body 1, an opening of the power distribution cabin 7 is arranged at the rear side, openings are respectively arranged at the front side and the rear side of the power conversion cabin 6, and the openings at the front side and the rear side and the shutters 1-3 on the cabinet doors 1-2 at the front side and the rear side correspond to form a heat dissipation ventilation channel so as to facilitate the heat dissipation of the power module 6-1 from the front to the rear. In addition, three groups of power modules 6-1 are arranged side by side left and right in the power conversion cabin 6, each group comprises ten power modules 6-1, namely thirty power modules 6-1 are installed in one power conversion cabin 6.
As shown in fig. 3 and 4, the dc charging device further includes two shunt busbars 9, the two shunt busbars 9 are disposed, the two shunt busbars 9 are vertically disposed above the two power conversion bays 6 on the left and right sides, the two shunt busbars 9 are respectively connected with the two ac contactors 4-2, that is, the ac power is respectively input to the two shunt busbars 9 along two branches after passing through the frame breaker 4-1, the shunt busbar 9 on the left side is connected with thirty power modules 6-1 in the power conversion bay 6 on the left side, and the shunt busbar 9 on the right side is connected with thirty power modules 6-1 in the power conversion bay 6 on the right side, so as to shunt the introduced ac power to the power modules 6-1.
As shown in fig. 5, the shunt busbar 9 includes a head end 9-5 and a tail end 9-6, the head end 9-5 is used for connecting with the ac contactor 4-2, and the cross-sectional dimension of the shunt busbar 9 decreases linearly from the head end to the tail end. And the cross-sectional dimension of the head end 9-5 is 60mm x 6mm and the cross-sectional dimension of the tail end 9-6 is 20mm x 6 mm. The maximum capacity of the charging equipment is 1200kW, the maximum rated currents of the two branches are 912A, and according to the national standard, the head end 9-5 with the cross section size of 60mm multiplied by 6mm can load 990A current, so that the cross section size of the head end 9-5 meets the requirement. When the current is shunted to the end 9-6, the end 9-6 still needs to carry the current of 304A, and according to the national standard, the end 9-6 with the cross-sectional dimension of 20mm × 6mm can carry the current of 400A, so the cross-sectional dimension of the end 9-6 can still meet the requirement.
As shown in fig. 5, two first connection holes 9-1 arranged left and right are formed in a head end 9-5 of the shunt busbar 9, and the first connection holes 9-1 are used for being connected with an ac contactor 4-2. The tail end 9-6 of the shunt busbar 9 is provided with a first mounting hole 9-4, the position, close to the head end 9-5, of the shunt busbar 9 is provided with two second mounting holes 9-7, the two second mounting holes 9-7 are vertically arranged, and the first mounting hole 9-4 and the second mounting hole 9-7 are used for being connected with a mounting plate 10 above the power conversion cabin 6 so as to fixedly mount the shunt busbar 9 above the power conversion cabin 6.
In addition, as shown in fig. 5, a second connecting hole 9-2 and a third connecting hole 9-3 are further formed in the shunt busbar 9, the second connecting hole 9-2 and the third connecting hole 9-3 are located between the first mounting hole 9-4 and the second mounting hole 9-7, three groups of second connecting holes 9-2 are arranged, the three groups of second connecting holes 9-2 are arranged at intervals left and right, the one group of second connecting holes 9-2 includes ten second connecting holes 9-2, that is, thirty second connecting holes 9-2 are formed in one shunt busbar 9, and thirty second connecting holes 9-2 are respectively connected with thirty power modules 6-1. The number of the third connecting holes 9-3 is two, the two third connecting holes 9-3 and the three groups of second connecting holes 9-2 are arranged at intervals in a crossed mode, and the two third connecting holes 9-3 are used for overlapping the shunt busbars 9.
As shown in fig. 3, the cabin further includes a main control cabin 5, an opening of the main control cabin 5 is disposed at a front side, a main controller 5-1 is installed in the main control cabin 5, the main controller 5-1 is used for controlling power distribution among power relays 7-3 in the whole dc charging device, and the main control cabin 5 is located at a back side of the wire inlet cabin 3.
As shown in fig. 3, the cabin further includes two unit control cabins 8, openings of the unit control cabins 8 are disposed on the front side, the two unit control cabins 8 are respectively located in the two dc conversion output units, a unit controller 8-1 is installed in the unit control cabin 8, the unit controller 8-1 is used for assisting the main controller 5-1 in performing power distribution, and the unit control cabin 8 is located on the back side of the power distribution cabin 7.
The working principle of the direct current charging equipment is as follows:
alternating current is introduced by an incoming busbar 3-1, and is divided into two branches by two branches after passing through a frame breaker 4-1, the branches are respectively controlled by two alternating current contactors 4-2 and respectively flow into two shunt busbars 9 on the left side and the right side, the branches are shunted to thirty power modules 6-1 in a power conversion cabin 6 after passing through the shunt busbars 9, the alternating current is converted into direct current after passing through the power modules 6-1 and is output to power relays 7-3 in two power distribution cabins 7, and after the direct current is controlled and allocated by a main controller 5-1 in the main control cabin 5 and unit controllers 8-1 in two unit control cabins 8, power can be reasonably distributed to sixty charging terminals as required.
The direct current charging device of the invention can not only lead external alternating current into the direct current charging device through the alternating current input unit, convert the led alternating current into direct current through the direct current conversion output unit and output the direct current, but also can divide the space in the cabinet body into different cabins through the partition boards, meets the installation requirements of all electrical parts in the direct current charging equipment, at the same time, by arranging the compartments in the same vertically arranged plane, by arranging the openings of the compartments at the front side and/or the rear side, and set up the cabinet door that is used for sealing corresponding cabin opening at the front side and/or the rear side of the cabinet body, only need open the cabinet door of cabinet body front side and/or rear side alright overhaul the maintenance like this, compare in prior art, made things convenient for the maintenance of electric spare in each cabin, reduced the work load of overhauing the maintenance relatively, improved work efficiency.
In addition, the two direct current conversion output units are arranged in parallel, so that the problem that equipment cannot be normally used due to the fact that the existing product power change unit fails is solved.
In the above embodiments, the power module dissipates heat from front to back, and in other embodiments, the power module may also dissipate heat from back to front.
In the above embodiments, the cross-sectional dimension of the shunt busbar decreases linearly from the head end to the tail end, and in other embodiments, the cross-sectional dimension of the shunt busbar decreases curvedly from the head end to the tail end, or the shunt busbar has a step shape from the head end to the tail end, and the cross-sectional dimension decreases gradually.
In the above embodiments, the cross-sectional dimension of the shunt busbar is gradually reduced from the head end to the tail end, and in other embodiments, the shunt busbar may be a rectangular busbar, that is, the cross-sectional dimension of the shunt busbar is not changed from the head end to the tail end.
In the above embodiments, the shunt busbar is located above the power conversion cabin, and in other embodiments, the position of the shunt busbar can be adjusted according to the positions of the power conversion cabin and the power supply cabin.
In the above embodiments, the power conversion compartment is located at the upper part in the cabinet body, and the power distribution compartment is located at the lower part in the cabinet body.
In the above embodiments, the switch cabin is located at the upper part in the cabinet body, and the incoming line cabin is located at the lower part in the cabinet body.
In the above embodiments, the incoming line busbar is installed in the incoming line compartment, and the high-voltage on-off switch is installed in the on-off compartment.
In the above embodiments, the power supply compartment is disposed between the two dc conversion output units, and in other embodiments, the power supply compartment may be disposed on the left side or the right side of the two dc conversion output units.
In the above embodiments, there are two dc conversion output units, and in other embodiments, there may be only one dc conversion output unit.
In the above embodiments, the opening of each cabin is disposed at the front side or the rear side, in other embodiments, the opening of each cabin may be disposed at the front side or the rear side, that is, only one cabin is disposed at the same spatial position in the cabinet body, and at this time, the cabinet door may be disposed at only the front side of the cabinet body or the rear side of the cabinet body.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. Direct current charging equipment, its characterized in that includes:
the intelligent cabinet comprises a cabinet body (1), wherein an alternating current input unit and a direct current conversion output unit are arranged in the cabinet body (1), the alternating current input unit is used for introducing external alternating current into the cabinet body (1) and supplying the external alternating current to the direct current conversion output unit, and the direct current conversion output unit is used for converting the alternating current into direct current and outputting the direct current;
a partition board is arranged in the cabinet body (1), the partition board divides the space in the cabinet body (1) into different cabins, and each cabin is used for installing a corresponding electric part of the alternating current input unit and a corresponding electric part of the direct current conversion output unit;
each cabin forms an opening at the front side and/or the rear side of the cabinet body (1);
the front side and/or the rear side of the cabinet body (1) are/is provided with cabinet doors (1-2), and the cabinet doors (1-2) are used for closing the openings of the corresponding cabins when being closed;
the direct current conversion output unit comprises a power module (6-1), the power module (6-1) is used for converting externally introduced alternating current into direct current, a heat dissipation opening corresponding to the power module (6-1) in the front and back is formed in the cabinet body (1), and the heat dissipation opening is used for enabling the power module (6-1) to dissipate heat from front to back or from back to front.
2. The direct-current charging apparatus according to claim 1, wherein there are two direct-current conversion output units, and the two direct-current conversion output units are arranged side by side in the same vertically arranged plane.
3. The dc charging apparatus of claim 2, wherein the compartment comprises a power bay, the ac input unit is mounted in the power bay, and the power bay is disposed between and in the same vertical plane as the two dc conversion output units.
4. The direct-current charging equipment according to claim 3, wherein the power supply cabin comprises an incoming line cabin (3) and a switch cabin (4), the alternating-current input unit comprises an incoming line busbar (3-1) and a high-voltage on-off switch, the incoming line busbar (3-1) is installed in the incoming line cabin (3), the incoming line busbar (3-1) is used for introducing external alternating current into the cabinet body (1), the high-voltage on-off switch is installed in the switch cabin (4) and used for controlling on-off of current transmission, and the high-voltage on-off switch is connected with the incoming line busbar (3-1).
5. The direct current charging device according to claim 4, characterized in that the switch compartment (4) is located at an upper portion inside the cabinet body (1), and the wire inlet compartment (3) is located at a lower portion inside the cabinet body (1).
6. A DC charging device according to claim 4 or 5, characterized in that the cabin further comprises a main control cabin (5), a main controller (5-1) is installed in the main control cabin (5), the main controller (5-1) is used for controlling the power distribution of the whole DC charging device, and the main control cabin (5) is located at the back side of the wire inlet cabin (3).
7. The direct-current charging device according to any one of claims 1 to 5, wherein the direct-current conversion output unit further comprises a power relay (7-3); the cabin also comprises a power conversion cabin (6) and a power distribution cabin (7), wherein the power conversion cabin (6) is used for installing the power module (6-1); the power distribution cabin (7) is used for installing a power relay (7-3), and the power relay (7-3) is used for controlling the output of power.
8. The direct current charging device according to claim 7, wherein the power conversion cabin (6) is located at an upper portion inside the cabinet body (1), the power distribution cabin (7) is located at a lower portion inside the cabinet body (1), the direct current charging device further comprises a shunt busbar (9), the shunt busbar (9) is located above the power conversion cabin (6), and the shunt busbar (9) is used for shunting the alternating current introduced by the alternating current input unit to the power module (6-1).
9. The direct current charging equipment according to claim 8, characterized in that the shunt busbar (9) comprises a head end (9-5) and a tail end (9-6), the head end (9-5) is used for connecting with an alternating current input unit, and the cross-sectional dimension of the shunt busbar (9) is gradually reduced from the head end (9-5) to the tail end (9-6).
10. The direct current charging device according to claim 7, wherein the cabin further comprises a main control cabin (5), a main controller (5-1) is installed in the main control cabin (5), and the main controller (5-1) is used for controlling the power distribution of the whole direct current charging device; the cabin also comprises a unit control cabin (8), a unit controller (8-1) is installed in the unit control cabin (8), the unit controller (8-1) is used for assisting the main controller (5-1) to carry out power distribution, and the unit control cabin (8) is located on the back side of the power distribution cabin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057918.6A CN113910938A (en) | 2021-09-09 | 2021-09-09 | DC charging equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111057918.6A CN113910938A (en) | 2021-09-09 | 2021-09-09 | DC charging equipment |
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| CN113910938A true CN113910938A (en) | 2022-01-11 |
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| CN202111057918.6A Pending CN113910938A (en) | 2021-09-09 | 2021-09-09 | DC charging equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117799471A (en) * | 2023-12-29 | 2024-04-02 | 东莞市湘华五金科技有限公司 | Partition type control cabinet |
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Application publication date: 20220111 |