CN107750116B - High-power quick charging equipment - Google Patents

High-power quick charging equipment Download PDF

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Publication number
CN107750116B
CN107750116B CN201711179277.5A CN201711179277A CN107750116B CN 107750116 B CN107750116 B CN 107750116B CN 201711179277 A CN201711179277 A CN 201711179277A CN 107750116 B CN107750116 B CN 107750116B
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China
Prior art keywords
liquid
liquid cooling
cooling
communicated
pipeline
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CN201711179277.5A
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CN107750116A (en
Inventor
穆晓鹏
徐威
李健
梁汉清
慕永刚
徐爱华
夏修龙
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Qingdao Teld New Energy Technology Co Ltd
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Qingdao Teld New Energy Technology Co Ltd
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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
    • 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
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • 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
    • 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 relates to high-power quick charging equipment, which is provided with a chassis, wherein a charging module and a liquid cooling device capable of cooling the charging module are arranged in the chassis, the liquid cooling device comprises a liquid cooling box and a liquid cooling plate, a liquid filling space is formed in the liquid cooling box in a hollow mode, a liquid outflow opening of the liquid cooling box is communicated with a liquid inflow opening of the liquid filling space through a first pipeline, the liquid outflow opening of the liquid filling space is communicated with the liquid inflow opening of the liquid cooling box through a second pipeline, a liquid pump capable of enabling cooling liquid to flow from the liquid cooling box to the liquid cooling box after flowing through the liquid filling space is arranged on the first pipeline, the charging module is detachably arranged above the liquid cooling plate, and the bottom surface of the charging module is in contact with the upper plate surface of the liquid cooling plate. The invention can cool the charging module by utilizing the liquid cooling principle, thereby meeting the high heat radiation performance requirement of high-power quick charging, improving the reliability of a heat radiation system, meeting the high protection requirement, improving the charging efficiency and shortening the charging time.

Description

High-power quick charging equipment
Technical Field
The invention relates to the technical field of quick charging equipment, in particular to high-power quick charging equipment.
Background
In the prior art, the charging time of high-power charging equipment such as new energy automobiles is longer, however, the cooling mode of the existing high-power quick-charging products is designed in a forced air cooling mode, the protection level is low, the heat exchange efficiency is low, and the development to higher power is difficult.
Disclosure of Invention
The present invention has been made in view of the above-described problems, and an object thereof is to provide a high-power quick charging device capable of improving the heat radiation capability of a charging system.
The following technical scheme is adopted for realizing the purpose of the invention.
The invention of claim 1 is a high-power quick charging device, which is provided with a case comprising a case body and a case door, wherein a charging module and a liquid cooling device capable of cooling the charging module are installed in the case.
The liquid cooling device comprises a liquid cooling box which is filled with cooling liquid and can cool the cooling liquid, and a liquid cooling plate which is hollow inside and forms a liquid filling space.
The liquid outlet of the liquid cooling box is communicated with the liquid inlet of the liquid filling space through a first pipeline, the liquid outlet of the liquid filling space is communicated with the liquid inlet of the liquid cooling box through a second pipeline, and a liquid pump which can enable the cooling liquid to flow from the liquid cooling box to the liquid filling space and then return to the liquid cooling box is arranged on the first pipeline.
The charging module is detachably mounted above the liquid cooling plate, and the bottom surface of the charging module is in contact with the upper plate surface of the liquid cooling plate.
In addition, in the high-power quick charging device according to claim 2, in the high-power quick charging device according to claim 1, a partition plate through which the first pipeline and the second pipeline can pass is provided in the chassis, an internal space of the chassis is partitioned into a power chamber and a cooling chamber by the partition plate, the liquid cooling plate and the charging module are disposed in the power chamber, the liquid cooling tank and the liquid pump are disposed in the cooling chamber, and the power chamber is formed into a closed space in the case that the door is closed.
In addition, in the high-power quick charging device according to claim 3, in the high-power quick charging device according to claim 2, an internal heat exchanger that can circulate and cool the gas in the power chamber is further installed in the power chamber.
In addition, in the high-power quick charging apparatus of claim 4, in the high-power quick charging apparatus of claim 3, the internal heat exchanger is a liquid-cooled heat exchanger having a liquid inlet and a liquid outlet, the liquid inlet of the liquid-cooled heat exchanger is communicated with the liquid outlet of the liquid cooling tank, and the liquid outlet of the liquid-cooled heat exchanger is communicated with the second pipe.
In addition, in the high-power quick charging apparatus according to claim 5, in the high-power quick charging apparatus according to claim 2, an external fan that can circulate air inside the cooling chamber and outside air is further mounted on a side wall of the case that constitutes the cooling chamber.
In addition, in the high-power quick charging apparatus of claim 6, in the high-power quick charging apparatus of claim 1, the liquid cooling plates have a plurality of, and a plurality of the liquid cooling plates are arranged in a plurality of layers in a manner of being horizontally placed in a vertical direction, the charging modules have a plurality of, and each of the charging modules can be installed above each of the liquid cooling plates in a one-to-one correspondence manner with each of the liquid cooling plates.
In addition, in the high-power quick charging apparatus according to claim 7, in the high-power quick charging apparatus according to claim 6, the first pipeline includes a cold-side liquid main pipe and a plurality of cold-side liquid branch pipes, the plurality of cold-side liquid branch pipes are the same as the number of the liquid cooling plates and each of the cold-side liquid branch pipes is formed in one-to-one correspondence with each of the liquid cooling plates as a cold-side liquid branch pipe of each of the liquid cooling plates, and a liquid inflow port of a liquid charging space of each of the liquid cooling plates is communicated with the cold-side liquid main pipe through each of the cold-side liquid branch pipes, and a liquid inflow port of the cold-side liquid main pipe is communicated with a liquid outflow port of the liquid-cooled heat exchanger.
The second pipeline comprises a hot side liquid main pipe and a plurality of hot side liquid branch pipes, the number of the hot side liquid branch pipes is the same as that of the liquid cooling plates, each hot side liquid branch pipe is respectively and correspondingly formed into a hot side liquid branch pipe of each liquid cooling plate, a liquid outflow port of a liquid filling space of each liquid cooling plate is respectively communicated with the hot side liquid main pipe through each hot side liquid branch pipe, and a liquid outflow port of the hot side liquid main pipe is communicated with a liquid inflow port of the liquid-cooled heat exchanger.
In addition, in the high-power quick charging apparatus according to claim 8, in the high-power quick charging apparatus according to claim 7, the cold-side liquid branch pipes of the liquid cooling plates and the hot-side liquid branch pipes of the liquid cooling plates are respectively communicated with the liquid filling spaces of the liquid cooling plates in a manner of being inclined downward with respect to the liquid cooling plates, and the connecting lines of the two ends of the cold-side liquid branch pipes and the connecting lines of the two ends of the hot-side liquid branch pipes are respectively acute angles with respect to the vertical direction.
In addition, in the high-power quick charging apparatus of claim 9, in the high-power quick charging apparatus of claim 8, the acute angle is 30 degrees to 55 degrees.
In addition, in the protective clothing suit of claim 10, in the high-power quick charging device of claim 6, each two adjacent layers of the liquid cooling plates are a group of liquid cooling plates, each group of liquid cooling plates respectively comprises an upper layer of liquid cooling plate and a lower layer of liquid cooling plate, and in each group of liquid cooling plates, a liquid inflow port of the upper layer of liquid cooling plate is communicated with a liquid outflow port of the lower layer of liquid cooling plate through a serial pipeline.
The liquid inflow port of the first pipeline is communicated with the liquid outflow port of the liquid cooling box, and the liquid outflow port of the first pipeline is communicated with the liquid inflow port of the liquid cooling plate at the lowest layer; the liquid inflow port of the second pipeline is communicated with the liquid outflow port of the uppermost liquid cooling plate, and the liquid outflow port of the second pipeline is communicated with the liquid inflow port of the liquid cooling box.
Through the structure, the invention can produce the following beneficial effects.
In the prior art, the charging time of high-power charging equipment such as new energy automobiles is longer, however, the cooling mode of the existing high-power quick-charging products is designed in a forced air cooling mode, the protection level is low, the heat exchange efficiency is low, and the development to higher power is difficult.
In contrast, according to the invention of claim 1, there is provided a high-power quick-charging apparatus having a chassis including a cabinet and a door, a charging module and a liquid cooling device capable of cooling the charging module being mounted inside the chassis. The liquid cooling device comprises a liquid cooling box which is filled with cooling liquid and can cool the cooling liquid and a liquid cooling plate which is hollow inside to form a liquid filling space. The liquid outlet of the liquid cooling box is communicated with the liquid inlet of the liquid filling space through a first pipeline, the liquid outlet of the liquid filling space is communicated with the liquid inlet of the liquid cooling box through a second pipeline, and a liquid pump which can enable cooling liquid to flow from the liquid cooling box to the liquid filling space and then return to the liquid cooling box is arranged on the first pipeline. The charging module is detachably mounted above the liquid cooling plate, and the bottom surface of the charging module is in contact with the upper plate surface of the liquid cooling plate.
Through the structure, the heat generated by the charging module can be conducted into the cooling liquid through the liquid cooling plate, and the cooling liquid which is heated after heat exchange is continuously cooled through the liquid cooling box, so that the rapid cooling function of the charging module is realized under the action of the circulating cooling liquid, the charging module can meet the high-power rapid charging high heat dissipation performance requirement, the reliability of a heat dissipation system is improved, the high protection requirement is met, the operation reliability is improved, the charging efficiency is improved, and the charging time is shortened.
In addition, through setting up the mode that charges the module and install in the top of liquid cooling board with the dismouting, from this, when making the module that charges break down, can change alone the module that charges, and need not to shut down the maintenance to whole high-power quick charging equipment to can simplify the equipment maintenance process, the weeping phenomenon that appears easily in the whole maintenance process can be avoided more, high-power quick charging equipment's operation is safe and reliable more.
Through setting up the face contact on the bottom surface of module and the liquid cooling board that charges, make to charge between module and the liquid cooling board in the cooling process and realize the face contact to be favorable to improving the heat exchange efficiency between module and the liquid cooling board that charges, reinforce the cooling effect.
In addition, the invention has simple structure, strong integrity, small occupied area and high power density, and the volume of the charging equipment can be reduced by 10 to 20 percent compared with the total volume of the charging equipment which is mutually connected in parallel under the same power condition after calculation.
According to the invention of claim 2, the partition plate through which the first pipeline and the second pipeline can pass is provided in the chassis, the internal space of the chassis is partitioned into the power chamber and the cooling chamber by the partition plate, the liquid cooling plate and the charging module are provided in the power chamber, the liquid cooling tank and the liquid pump are provided in the cooling chamber, and the power chamber is formed into a closed space in the case where the door is closed.
Through such structure, make charge module and external environment keep apart to can improve charge module's protection level, make this high-power quick charge equipment can adapt to multiple adverse circumstances such as raininess, fog, simultaneously, the inside of power room is airtight space, and its inside air and external environment do not communicate, thereby, can avoid moist air to enter into the inside of power room, further avoid the inside air humidity of power room to reduce and arouse charge module dew's problem, guarantee the reliability of charging.
According to the invention of claim 3, an internal heat exchanger that can circulate the gas in the power chamber and cool the gas in the power chamber is further installed in the power chamber. The arrangement of the internal heat exchanger is beneficial to circularly cooling the high-temperature air in the power chamber, so that the temperature in the power chamber is further reduced.
According to the invention of claim 4, the internal heat exchanger is a liquid-cooled heat exchanger having a liquid inlet and a liquid outlet, the liquid inlet of the liquid-cooled heat exchanger is communicated with the liquid outlet of the liquid-cooled tank, and the liquid outlet of the liquid-cooled heat exchanger is communicated with the second pipeline.
Therefore, the liquid-cooled heat exchanger can exchange heat and cool hot air generated by convection and radiation in the power chamber, so that the temperature of the hot air continuously generated is lowered, the circulating flow between the hot air and the cold air is realized, the overall temperature of the air in the power chamber is reduced, and the equipment is ensured to normally operate under a high-power condition.
According to the invention of claim 5, an external fan that can circulate the air inside the cooling chamber with the outside air is further attached to the side wall of the case that constitutes the cooling chamber. Therefore, the cooling speed of the cooling liquid carrying the heat generated by the charging module in the second pipeline can be increased, so that the overall heat dissipation efficiency of the high-power quick charging equipment is further improved, the requirement of high-power quick charging is met, and the running reliability of the equipment is further improved.
According to the invention of claim 6, the plurality of liquid cooling plates are provided, the plurality of liquid cooling plates are horizontally arranged in a plurality of layers in the vertical direction, the plurality of charging modules are provided, and each charging module can be installed above each liquid cooling plate in a one-to-one correspondence manner with each liquid cooling plate.
Through such structure, can make this high-power quick charging equipment can hold a plurality of charging module, and can realize fully radiating to each charging module, and further, make each charging module mutually independent, under the circumstances that single charging module breaks down, can only dismantle and change the charging module that breaks down, other modules still normal operating, from this, avoid shutting down to overhaul to guarantee the continuous operation of this high-power quick charging equipment.
According to the inventions of claim 7 and claim 10, the first pipeline includes a cold-side liquid main pipe and a plurality of cold-side liquid branch pipes, the number of the plurality of cold-side liquid branch pipes is the same as the number of the liquid cooling plates, and each cold-side liquid branch pipe is formed as a cold-side liquid branch pipe of each liquid cooling plate in one-to-one correspondence with each liquid cooling plate. The liquid inflow port of the liquid filling space of each liquid cooling plate is communicated with the cold side liquid main pipe through a cold side liquid branch pipe, and the liquid inflow port of the cold side liquid main pipe is communicated with the liquid outflow port of the liquid cooling heat exchanger.
The second pipeline comprises a hot side liquid main pipe and a plurality of hot side liquid branch pipes, the quantity of the hot side liquid branch pipes is the same as that of the liquid cooling plates, and each hot side liquid branch pipe corresponds to each liquid cooling plate one by one to form a hot side liquid branch pipe of each liquid cooling plate. The liquid outflow ports of the liquid filling spaces of the liquid cooling plates are respectively communicated with the hot-side liquid main pipe through respective hot-side liquid branch pipes, and the liquid outflow ports of the hot-side liquid main pipes are communicated with the liquid inflow ports of the liquid-cooled heat exchanger.
Or, each two adjacent liquid cooling plates are used as a group of liquid cooling plates, each group of liquid cooling plates respectively comprises an upper layer liquid cooling plate and a lower layer liquid cooling plate, and in each group of liquid cooling plates, a liquid inflow port of the upper layer liquid cooling plate is communicated with a liquid outflow port of the lower layer liquid cooling plate through a serial pipeline. The liquid inflow port of the first pipeline is communicated with the liquid outflow port of the liquid cooling box, and the liquid outflow port of the first pipeline is communicated with the liquid inflow port of the liquid cooling plate at the lowest layer; the liquid inlet of the second pipeline is communicated with the liquid outlet of the uppermost liquid cooling plate, and the liquid outlet of the second pipeline is communicated with the liquid inlet of the liquid cooling box.
Through the above two structures, smooth flow of the cooling liquid in the liquid filling space of the liquid cooling plate can be realized, so that rapid circulation flow of the cooling liquid in the case is ensured, and rapid, continuous and effective cooling of the charging module by the cooling liquid is ensured.
According to the inventions of claim 8 and claim 9, the cold side liquid branch pipes of the respective liquid cooling plates and the hot side liquid branch pipes of the respective liquid cooling plates are provided to communicate with the liquid filling spaces of the respective liquid cooling plates in a manner inclined downward with respect to the respective liquid cooling plates, and the connecting lines of both ends of the respective cold side liquid branch pipes and the connecting lines of both ends of the respective hot side liquid branch pipes are respectively acute angles with respect to the vertical direction, and further, the degrees of the acute angles are set to be 30 degrees to 55 degrees.
Therefore, condensed water formed by condensing air in the power chamber on the outer wall of each branch pipe can quickly flow to the outer wall of the main pipe along the outer wall of each branch pipe, so that the condensed water is prevented from directly dripping on an interface of the charging module, and the safe reliability of the operation of the high-power quick charging equipment is further ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram showing the overall structure of a first embodiment of a high-power quick charging apparatus provided by the present invention.
Fig. 2 is a front view showing a first embodiment of the high-power quick charging apparatus provided by the present invention.
Fig. 3 is a rear view showing a first embodiment of the high-power quick charging apparatus provided by the present invention.
Fig. 4 is a left side view showing a first embodiment of the high-power quick charging apparatus provided by the present invention.
Fig. 5 is a right side view showing a first embodiment of the high-power quick charging apparatus provided by the present invention.
Reference numerals: 1-a charging module; 2-a liquid cooling box; 3-liquid cooling plate; 4-a liquid pump; 5-a separator; 6-an internal heat exchanger; 7-an external fan; 8-a cold-side liquid main pipe; 9-a hot side liquid main pipe; 10-power chamber; 11-cooling chamber.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; the connection can be mechanical connection or connection; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The overall structure of the high-power quick charging device provided by the invention can be divided into the following specific embodiments.
First embodiment
Fig. 1 is a schematic diagram showing the overall structure of a first embodiment of a high-power quick charging apparatus provided by the present invention. Fig. 2 is a front view showing a first embodiment of the high-power quick charging apparatus provided by the present invention. Fig. 3 is a rear view showing a first embodiment of the high-power quick charging apparatus provided by the present invention. Fig. 4 is a left side view showing a first embodiment of the high-power quick charging apparatus provided by the present invention. Fig. 5 is a right side view showing a first embodiment of the high-power quick charging apparatus provided by the present invention.
As shown in fig. 1 to 5, the battery charger includes a cabinet including a cabinet body and a cabinet door, and a charging module 1 and a liquid cooling device capable of cooling the charging module 1 are installed in the cabinet.
The liquid cooling device comprises a liquid cooling box 2 which is filled with cooling liquid and can cool the cooling liquid and a liquid cooling plate 3 which is hollow inside to form a liquid filling space.
The liquid outlet of the liquid cooling tank 2 is communicated with the liquid inlet of the liquid filling space through a first pipeline, the liquid outlet of the liquid filling space is communicated with the liquid inlet of the liquid cooling tank 2 through a second pipeline, and a liquid pump 4 which can enable cooling liquid to flow from the liquid cooling tank 2 through the liquid filling space and then return to the liquid cooling tank 2 is arranged on the first pipeline.
The charging module 1 is detachably mounted above the liquid cooling plate 3, and the bottom surface of the charging module 1 is in contact with the upper plate surface of the liquid cooling plate 3.
Further, a partition 5 through which the first pipe and the second pipe can pass is provided in the chassis, the internal space of the chassis is partitioned by the partition 5 into a power chamber 10 and a cooling chamber 11, the liquid cooling plate 3 and the charging module 1 are provided in the power chamber 10, the liquid cooling tank 2 and the liquid pump 4 are provided in the cooling chamber 11, and the power chamber 10 is formed as a closed space when the door is closed.
Further, an internal heat exchanger 6 that can circulate the gas in the power chamber 10 and cool the gas in the power chamber 10 is also installed in the power chamber 10.
Further, the internal heat exchanger 6 is a liquid-cooled heat exchanger having a liquid inlet and a liquid outlet, the liquid inlet of the liquid-cooled heat exchanger being in communication with the liquid outlet of the liquid cooling tank 2, the liquid outlet of the liquid-cooled heat exchanger being in communication with the second pipe.
An external fan 7 that can circulate air inside the cooling chamber 11 and outside air is also attached to the side wall of the casing that constitutes the cooling chamber 11.
In addition, the liquid cooling plates 3 have a plurality, and the plurality of liquid cooling plates 3 are arranged in a plurality of layers in a manner horizontally placed in the vertical direction, the charging modules 1 have a plurality, and each charging module 1 can be installed above each liquid cooling plate 3 in a one-to-one correspondence manner with each liquid cooling plate 3.
Further, the first pipeline includes a cold-side liquid main pipe 8 and a plurality of cold-side liquid branch pipes, the number of the plurality of cold-side liquid branch pipes is the same as that of the liquid cooling plates 3, and each cold-side liquid branch pipe is formed into a cold-side liquid branch pipe of each liquid cooling plate 3 in one-to-one correspondence with each liquid cooling plate 3, and a liquid inflow port of a liquid filling space of each liquid cooling plate 3 is communicated with the cold-side liquid main pipe 8 through each cold-side liquid branch pipe, and a liquid inflow port of the cold-side liquid main pipe 8 is communicated with a liquid outflow port of the liquid-cooled heat exchanger.
The second pipeline comprises a hot-side liquid mother pipe 9 and a plurality of hot-side liquid branch pipes, the number of the hot-side liquid branch pipes is the same as that of the liquid cooling plates 3, each hot-side liquid branch pipe is respectively formed into a hot-side liquid branch pipe of each liquid cooling plate 3 in one-to-one correspondence with each liquid cooling plate 3, a liquid outflow port of a liquid filling space of each liquid cooling plate 3 is respectively communicated with the hot-side liquid mother pipe 9 through each hot-side liquid branch pipe, and a liquid outflow port of the hot-side liquid mother pipe 9 is communicated with a liquid inflow port of the liquid-cooled heat exchanger.
Further, the cold side liquid branch pipes of each liquid cooling plate 3 and the hot side liquid branch pipes of each liquid cooling plate 3 are respectively communicated with the liquid filling spaces of each liquid cooling plate 3 in a downward inclined mode relative to each liquid cooling plate 3, and the connecting lines of the two ends of each cold side liquid branch pipe and the connecting lines of the two ends of each hot side liquid branch pipe are respectively acute angles with the vertical direction.
Further, the acute angle is 30-55 degrees.
Second embodiment
In comparison with the first embodiment, the "first pipeline includes the cold-side liquid mother pipe 8 and the plurality of cold-side liquid branch pipes, the number of which is the same as that of the liquid cooling plates 3, and each cold-side liquid branch pipe is formed as a cold-side liquid branch pipe of each liquid cooling plate 3 in one-to-one correspondence with each liquid cooling plate 3, the liquid inflow port of the liquid charging space of each liquid cooling plate 3 is communicated with the cold-side liquid mother pipe 8 through each cold-side liquid branch pipe, and the liquid inflow port of the cold-side liquid mother pipe 8 is communicated with the liquid outflow port of the liquid-cooled heat exchanger.
The second pipeline comprises a hot-side liquid mother pipe 9 and a plurality of hot-side liquid branch pipes, the number of the hot-side liquid branch pipes is the same as that of the liquid cooling plates 3, each hot-side liquid branch pipe is respectively formed into a hot-side liquid branch pipe of each liquid cooling plate 3 in one-to-one correspondence with each liquid cooling plate 3, a liquid outflow port of a liquid filling space of each liquid cooling plate 3 is respectively communicated with the hot-side liquid mother pipe 9 through each hot-side liquid branch pipe, and a liquid outflow port of the hot-side liquid mother pipe 9 is communicated with a liquid inflow port of the liquid-cooled heat exchanger.
Further, the cold side liquid branch pipes of each liquid cooling plate 3 and the hot side liquid branch pipes of each liquid cooling plate 3 are respectively communicated with the liquid filling spaces of each liquid cooling plate 3 in a downward inclined mode relative to each liquid cooling plate 3, and the connecting lines of the two ends of each cold side liquid branch pipe and the connecting lines of the two ends of each hot side liquid branch pipe are respectively acute angles with the vertical direction.
Further, the structure of the acute angle with the degree of 30 degrees to 55 degrees is replaced with the following structure:
"use every adjacent two-layer liquid cooling board 3 as a set of liquid cooling board 3, every group liquid cooling board 3 includes upper strata liquid cooling board 3 and lower floor's liquid cooling board 3 respectively, in every group liquid cooling board 3, through the series connection pipeline intercommunication between the liquid inflow port of upper strata liquid cooling board 3 and the liquid outflow port of lower floor's liquid cooling board 3.
The liquid inflow port of the first pipeline is communicated with the liquid outflow port of the liquid cooling box 2, and the liquid outflow port of the first pipeline is communicated with the liquid inflow port of the liquid cooling plate 3 at the lowest layer; the liquid inlet of the second pipeline is communicated with the liquid outlet of the uppermost liquid cooling plate 3, and the liquid outlet of the second pipeline is communicated with the liquid inlet of the liquid cooling box 2.
The other structure is the same as the first embodiment.
The structure of the high-power rapid charging device provided by the invention is described above, and the use and operation modes thereof are described below.
When the high-power quick charging device is used, the input end of the charging module 1 is connected with a power supply, the output end of the charging module is connected with a charging terminal, and during connection, single-gun quick charging or multi-gun quick charging can be realized, in the quick charging process, cooling liquid flows out of the liquid cooling box 2, enters into a liquid filling space of the liquid cooling plate 3 under the action of the liquid pump 4, exchanges heat with air in the power chamber 10 with heat emitted by the charging module 1, and returns to the liquid cooling box 2 to be cooled again.
In the process, the heat dissipation speed of the air in the power chamber 10 is increased by the internal heat exchanger 6, and the cooling speed of the cooling liquid in the second pipeline is increased by the external fan 7, so that the rapid heat dissipation is realized under the triple actions of the continuously circulated cooling liquid, the internal heat exchanger 6 and the external fan 7, and the running reliability of the equipment is ensured.
In the specific embodiment, the invention provides high-power quick charging equipment, which enables heat generated by a charging module to be conducted into cooling liquid through a liquid cooling plate, and continuously cools the cooling liquid heated after heat exchange through a liquid cooling box, so that the quick cooling function of the charging module is realized under the action of the circulating cooling liquid, and further, the charging module can meet the high heat dissipation performance requirement of high-power quick charging, the reliability of a heat dissipation system is improved, the high protection requirement is met, the operation reliability is improved, the charging efficiency is improved, and the charging time is shortened.
In addition, through setting up the mode that charges the module and install in the top of liquid cooling board with the dismouting, from this, when making the module that charges break down, can change alone the module that charges, and need not to shut down the maintenance to whole high-power quick charging equipment to can simplify the equipment maintenance process, the weeping phenomenon that appears easily in the whole maintenance process can be avoided more, high-power quick charging equipment's operation is safe and reliable more.
Through setting up the face contact on the bottom surface of module and the liquid cooling board that charges, make to charge between module and the liquid cooling board in the cooling process and realize the face contact to be favorable to improving the heat exchange efficiency between module and the liquid cooling board that charges, reinforce the cooling effect.
In addition, the invention has simple structure, strong integrity, small occupied area and high power density, and the volume of the charging equipment can be reduced by 10 to 20 percent compared with the total volume of the charging equipment which is mutually connected in parallel under the same power condition after calculation.
In addition, in the above two embodiments, a partition plate through which the first pipeline and the second pipeline can pass is provided in the chassis, an internal space of the chassis is partitioned into a power chamber and a cooling chamber by the partition plate, the liquid cooling plate and the charging module are provided in the power chamber, the liquid cooling box and the liquid pump are provided in the cooling chamber, and when the door is closed, the power chamber is formed into a closed space.
Through such structure, make charge module and external environment keep apart to can improve charge module's protection level, make this high-power quick charge equipment can adapt to multiple adverse circumstances such as raininess, fog, simultaneously, the inside of power room is airtight space, and its inside air and external environment do not communicate, thereby, can avoid moist air to enter into the inside of power room, further avoid the inside air humidity of power room to reduce and arouse charge module dew's problem, guarantee the reliability of charging.
In the above two embodiments, an internal heat exchanger is further installed in the power chamber, which is capable of circulating the gas in the power chamber and cooling the gas in the power chamber. The arrangement of the internal heat exchanger is beneficial to circularly cooling the high-temperature air in the power chamber, so that the temperature in the power chamber is further reduced.
In the above two embodiments, the internal heat exchanger is a liquid-cooled heat exchanger having a liquid inlet and a liquid outlet, the liquid inlet of the liquid-cooled heat exchanger is connected to the liquid outlet of the liquid-cooled tank, and the liquid outlet of the liquid-cooled heat exchanger is connected to the second pipe.
Therefore, the liquid-cooled heat exchanger can exchange heat and cool hot air generated by convection and radiation in the power chamber, so that the temperature of the hot air continuously generated is lowered, the circulating flow between the hot air and the cold air is realized, the overall temperature of the air in the power chamber is reduced, and the equipment is ensured to normally operate under a high-power condition.
In the above two embodiments, an external fan that can circulate the air inside the cooling chamber and the outside air is further mounted on the side wall of the case that constitutes the cooling chamber. Therefore, the cooling speed of the cooling liquid carrying the heat generated by the charging module in the second pipeline can be increased, so that the overall heat dissipation efficiency of the high-power quick charging equipment is further improved, the requirement of high-power quick charging is met, and the running reliability of the equipment is further improved.
In addition, in the above two embodiments, a plurality of liquid cooling plates are provided, and the plurality of liquid cooling plates are horizontally arranged in a multi-layer arrangement manner in the vertical direction, and the plurality of charging modules are provided, and each charging module can be installed above each liquid cooling plate in a one-to-one correspondence manner with each liquid cooling plate.
According to such a structure, the high-power quick charging device can accommodate a plurality of charging modules, and can fully dissipate heat for each charging module, further, each charging module is mutually independent, when a single charging module fails, only the failed charging module can be disassembled and replaced, and other modules still operate normally, so that shutdown maintenance is avoided, and continuous operation of the high-power quick charging device is ensured.
In addition, in the first specific embodiment, the first pipeline includes a cold-side liquid main pipe and a plurality of cold-side liquid branch pipes, the number of the plurality of cold-side liquid branch pipes is the same as that of the liquid cooling plates, and each cold-side liquid branch pipe is formed as a cold-side liquid branch pipe of each liquid cooling plate in one-to-one correspondence with each liquid cooling plate. The liquid inflow port of the liquid filling space of each liquid cooling plate is communicated with the cold side liquid main pipe through a cold side liquid branch pipe, and the liquid inflow port of the cold side liquid main pipe is communicated with the liquid outflow port of the liquid cooling heat exchanger.
The second pipeline comprises a hot side liquid main pipe and a plurality of hot side liquid branch pipes, the quantity of the hot side liquid branch pipes is the same as that of the liquid cooling plates, and each hot side liquid branch pipe corresponds to each liquid cooling plate one by one to form a hot side liquid branch pipe of each liquid cooling plate. The liquid outflow ports of the liquid filling spaces of the liquid cooling plates are respectively communicated with the hot-side liquid main pipe through respective hot-side liquid branch pipes, and the liquid outflow ports of the hot-side liquid main pipes are communicated with the liquid inflow ports of the liquid-cooled heat exchanger.
In the second embodiment, each two adjacent liquid cooling plates are used as a group of liquid cooling plates, each group of liquid cooling plates respectively comprises an upper layer liquid cooling plate and a lower layer liquid cooling plate, the liquid cooling plates are arranged in each group of liquid cooling plates, and a liquid inflow port of the upper layer liquid cooling plate is communicated with a liquid outflow port of the lower layer liquid cooling plate through a serial pipeline. The liquid inflow port of the first pipeline is communicated with the liquid outflow port of the liquid cooling box, and the liquid outflow port of the first pipeline is communicated with the liquid inflow port of the liquid cooling plate at the lowest layer; the liquid inlet of the second pipeline is communicated with the liquid outlet of the uppermost liquid cooling plate, and the liquid outlet of the second pipeline is communicated with the liquid inlet of the liquid cooling box.
Through the above two structures that the above two specific embodiments respectively correspond, smooth flow of the cooling liquid in the liquid filling space of the liquid cooling plate can be realized, so that rapid circulation flow of the cooling liquid in the case is ensured, and rapid, continuous and effective cooling of the charging module by the cooling liquid is ensured.
In addition, in the first embodiment, the cold-side liquid branch pipe of each liquid cooling plate and the hot-side liquid branch pipe of each liquid cooling plate are respectively connected with the liquid filling space of each liquid cooling plate in a manner of being inclined downwards relative to each liquid cooling plate, and the included angle between the connecting line of the two ends of each cold-side liquid branch pipe and the connecting line of the two ends of each hot-side liquid branch pipe and the vertical direction is an acute angle, and further, the degree of the acute angle is 30 degrees to 55 degrees.
Therefore, condensed water formed by condensing air in the power chamber on the outer wall of each branch pipe can quickly flow to the outer wall of the main pipe along the outer wall of each branch pipe, so that the condensed water is prevented from directly dripping on an interface of the charging module, and the safe reliability of the operation of the high-power quick charging equipment is further ensured.
In addition, in the two embodiments, a main filter may be further disposed between the liquid pump 4 and the liquid cooling plate 3 of the first pipeline, so as to prevent the cooling liquid from washing out the falling rigid particles during the rapid flowing process from entering the liquid cooling plate.
In the above two embodiments, a heater may be provided in the liquid cooling tank 2 to ensure that the coolant flows in a low-temperature state in a low-temperature environment.
In the above embodiment, the specific configuration of the present invention has been described, but the present invention is not limited to this.
For example, in the above embodiment, the partition plate through which the first pipe and the second pipe can pass is provided in the chassis, the internal space of the chassis is partitioned by the partition plate into the power chamber and the cooling chamber, the liquid cooling plate and the charging module are provided in the power chamber, the liquid cooling tank and the liquid pump are provided in the cooling chamber, and when the door is closed, the power chamber is formed as a closed space in the power chamber.
However, the present invention is not limited to this, and the liquid cooling device and the charging module may be disposed in the same space, and the function of cooling the charging module by the liquid cooling device may be realized as well, but the structure having the partition plate in the specific embodiment may isolate the charging module from the external environment, so that the protection level of the charging module may be improved, the high-power rapid charging apparatus may be adapted to various severe environments such as heavy rain and heavy fog, and the inside of the power chamber may be a closed space, and the air in the power chamber may not communicate with the external environment, thereby preventing the moist air from entering the inside of the power chamber, further avoiding the problem of condensation of the charging module due to the decrease of the internal air humidity of the power chamber, and ensuring the charging reliability.
In the above two embodiments, an internal heat exchanger is further installed in the power chamber, which is capable of circulating the gas in the power chamber and cooling the gas in the power chamber.
However, the present invention is not limited thereto, and the function of cooling the charging module by the liquid cooling device can be similarly realized without providing the internal heat exchanger, but the arrangement of the internal heat exchanger is beneficial to circularly cooling the high-temperature air in the power chamber, thereby further reducing the air temperature in the power chamber.
In the above two embodiments, the internal heat exchanger is a liquid-cooled heat exchanger having a liquid inlet and a liquid outlet, the liquid inlet of the liquid-cooled heat exchanger is connected to the liquid outlet of the liquid-cooled tank, and the liquid outlet of the liquid-cooled heat exchanger is connected to the second pipe.
However, the internal heat exchanger is not limited thereto, and the internal heat exchanger may be an internal fan, so that air circulates inside the power chamber under the action of the internal fan, which is advantageous for sufficiently transferring heat of high-temperature air inside to the cooling liquid, and the cooling liquid can rapidly cool the air inside the power chamber. However, according to the structure of the specific embodiment, the liquid-cooled heat exchanger can exchange heat and cool hot air generated by convection and radiation in the power chamber, so that the temperature of the hot air continuously generated is lowered, the circulating flow between the hot air and the cold air is realized, the overall temperature of the air in the power chamber is reduced, the normal operation of the equipment under the high-power condition is ensured, and compared with the use of an internal fan, the heat dissipation efficiency is higher.
In the above two embodiments, an external fan that can circulate the air inside the cooling chamber and the outside air is further mounted on the side wall of the case that constitutes the cooling chamber. However, according to the structure of the specific embodiment, the above external fan is provided, so that the cooling speed of the cooling liquid carrying the heat generated by the charging module in the second pipeline can be increased, the overall heat dissipation efficiency of the high-power rapid charging device is further improved, the requirement of high-power rapid charging is met, and the running reliability of the device is further improved.
In addition, in the above two embodiments, a plurality of liquid cooling plates are provided, and the plurality of liquid cooling plates are horizontally arranged in a multi-layer arrangement manner in the vertical direction, and the plurality of charging modules are provided, and each charging module can be installed above each liquid cooling plate in a one-to-one correspondence manner with each liquid cooling plate.
But not limited to this, can also set up foretell liquid cooling board and just be the one deck, can realize the aforesaid and cool down the function of module that charges under the effect of liquid cooling device equally, but, according to the structure of concrete embodiment, set up the liquid cooling board and have a plurality of, and a plurality of liquid cooling boards are in the mode multilayer arrangement of placing with the level in the vertical direction, the module that charges has a plurality of, and each module that charges can install in the top of each liquid cooling board with each liquid cooling board one-to-one mode, from this, can make this high-power quick charging equipment can hold a plurality of modules that charge, and can realize fully dispelling the heat to each module that charges, further, make each module that charges mutually independent, can only dismantle and change the module that charges that breaks down under the condition that single module breaks down, other modules still normal operating, thereby, avoid the shut down maintenance, thereby guarantee the continuous operation of this high-power quick charging equipment.
In addition, in the first embodiment, the cold-side liquid branch pipe of each liquid cooling plate and the hot-side liquid branch pipe of each liquid cooling plate are respectively connected with the liquid filling space of each liquid cooling plate in a manner of being inclined downwards relative to each liquid cooling plate, and the included angle between the connecting line of the two ends of each cold-side liquid branch pipe and the connecting line of the two ends of each hot-side liquid branch pipe and the vertical direction is an acute angle, and further, the degree of the acute angle is 30 degrees to 55 degrees.
However, the cooling side liquid branch pipes of the liquid cooling plates and the hot side liquid branch pipes of the liquid cooling plates are respectively arranged in parallel and obliquely relative to the liquid cooling plates, and the function of cooling the charging module under the action of the liquid cooling device can be realized, however, according to the structure of the specific embodiment, the cooling side liquid branch pipes of the liquid cooling plates and the hot side liquid branch pipes of the liquid cooling plates are respectively inclined downwards relative to the liquid cooling plates, so that condensed water formed by condensing air in the power chamber on the outer wall of each branch pipe can quickly flow to the outer wall of the main pipe along the outer wall of each branch pipe, thereby avoiding the condensed water from directly dripping on an interface of the charging module, and further ensuring the safe reliability of the operation of the high-power quick charging equipment.
In addition, the degree of the acute angle is not 30-55 degrees, but any other acute angle, and the effect of draining the condensed water on the outer wall of the branch pipe can be achieved, however, the degree of the acute angle is 30-55 degrees, compared with the degree of the acute angle below 30 degrees, the degree above 30 degrees is favorable for ensuring that the cooling liquid smoothly enters the liquid cooling space of each liquid cooling plate from the outer wall of the branch pipe, compared with the degree above 55 degrees, the degree below 55 degrees is favorable for enabling the condensed water to flow down quickly along the outer wall of the branch pipe, and the condensed water is more favorable for draining.
In addition, the high-power quick charging device of the present invention can be combined with the various configurations of the above embodiments, and the above effects can be exerted as well.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (7)

1. The high-power quick charging equipment is characterized by comprising a case body and a case door, wherein a charging module and a liquid cooling device capable of cooling the charging module are installed in the case;
the liquid cooling device comprises a liquid cooling box which is filled with cooling liquid and can cool the cooling liquid, and a liquid cooling plate which is hollow inside and forms a liquid filling space;
the liquid outlet of the liquid cooling box is communicated with the liquid inlet of the liquid filling space through a first pipeline, the liquid outlet of the liquid filling space is communicated with the liquid inlet of the liquid cooling box through a second pipeline, and a liquid pump which can enable the cooling liquid to flow from the liquid cooling box to the liquid filling space and then return to the liquid cooling box is arranged on the first pipeline;
the charging module is detachably arranged above the liquid cooling plate, and the bottom surface of the charging module is in contact with the upper plate surface of the liquid cooling plate;
a liquid-cooled heat exchanger is arranged in the case, a liquid inflow port of the liquid-cooled heat exchanger is communicated with a liquid outflow port of the liquid cooling box, and the liquid outflow port of the liquid-cooled heat exchanger is communicated with the second pipeline;
The first pipeline comprises cold side liquid mother pipes and cold side liquid branch pipes, the number of the cold side liquid branch pipes is the same as that of the liquid cooling plates, and each cold side liquid branch pipe corresponds to each liquid cooling plate one by one to form a cold side liquid branch pipe of each liquid cooling plate; the second pipeline comprises hot side liquid mother pipes and hot side liquid branch pipes, the number of the hot side liquid branch pipes is the same as that of the liquid cooling plates, and each hot side liquid branch pipe corresponds to each liquid cooling plate one by one to form a hot side liquid branch pipe of each liquid cooling plate;
the cold side liquid branch pipes of the liquid cooling plates and the hot side liquid branch pipes of the liquid cooling plates are respectively communicated with the liquid filling spaces of the liquid cooling plates in a downward inclined mode relative to the liquid cooling plates, and the connecting lines of the two ends of the cold side liquid branch pipes and the connecting lines of the two ends of the hot side liquid branch pipes are respectively acute angles with vertical directions.
2. The high-power quick charge apparatus according to claim 1, wherein a partition plate through which the first pipe and the second pipe can pass, respectively, is provided inside the casing;
the inner space of the chassis is divided into a power chamber and a cooling chamber by the partition plate;
The liquid cooling plate and the charging module are arranged in the power chamber, and the liquid cooling box and the liquid pump are arranged in the cooling chamber;
the power chamber is internally formed into a closed space under the condition that the door is closed;
the liquid-cooled heat exchanger is mounted inside the power chamber.
3. The high-power quick charge apparatus according to claim 2, wherein an external fan capable of circulating air inside the cooling chamber with outside air is further mounted on a side wall of the case constituting the cooling chamber.
4. The high-power quick charge apparatus according to claim 1, wherein the liquid cooling plates have a plurality, and the plurality of liquid cooling plates are arranged in a plurality of layers in a horizontally placed manner in a vertical direction;
the plurality of charging modules are arranged, and each charging module can be arranged above each liquid cooling plate in a one-to-one correspondence mode with each liquid cooling plate.
5. The high-power quick charge apparatus according to claim 4, wherein the liquid inflow port of the liquid filled space of each of the liquid cooling plates communicates with the cold-side liquid header through the respective cold-side liquid branch pipe, respectively, the liquid inflow port of the cold-side liquid header communicating with the liquid outflow port of the liquid-cooled heat exchanger;
The liquid outflow ports of the liquid filling spaces of the liquid cooling plates are respectively communicated with the hot side liquid mother pipes through the hot side liquid branch pipes, and the liquid outflow ports of the hot side liquid mother pipes are communicated with the liquid inflow ports of the liquid cooling heat exchanger.
6. The high power quick charge device of claim 1, wherein the acute angle is 30-55 degrees.
7. The high-power quick charge device according to claim 4, wherein,
each two adjacent liquid cooling plates are used as a group of liquid cooling plates, each group of liquid cooling plates comprises an upper layer liquid cooling plate and a lower layer liquid cooling plate, and in each group of liquid cooling plates, a liquid inflow port of the upper layer liquid cooling plate is communicated with a liquid outflow port of the lower layer liquid cooling plate through a serial pipeline;
the liquid inflow port of the first pipeline is communicated with the liquid outflow port of the liquid cooling box, and the liquid outflow port of the first pipeline is communicated with the liquid inflow port of the liquid cooling plate at the lowest layer;
the liquid inflow port of the second pipeline is communicated with the liquid outflow port of the uppermost liquid cooling plate, and the liquid outflow port of the second pipeline is communicated with the liquid inflow port of the liquid cooling box.
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