CN113895264A - Liquid cooling heat dissipation direct current charging device - Google Patents
Liquid cooling heat dissipation direct current charging device Download PDFInfo
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- CN113895264A CN113895264A CN202111196861.8A CN202111196861A CN113895264A CN 113895264 A CN113895264 A CN 113895264A CN 202111196861 A CN202111196861 A CN 202111196861A CN 113895264 A CN113895264 A CN 113895264A
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- 239000007788 liquid Substances 0.000 title claims abstract description 106
- 238000001816 cooling Methods 0.000 title claims abstract description 95
- 230000017525 heat dissipation Effects 0.000 title claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 230000007246 mechanism Effects 0.000 claims abstract description 45
- 238000010438 heat treatment Methods 0.000 claims description 9
- 239000002826 coolant Substances 0.000 description 8
- 238000005457 optimization Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000110 cooling liquid Substances 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012546 transfer 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
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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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
- B60L53/30—Constructional details of charging stations
- B60L53/31—Charging columns specially adapted for electric vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A liquid cooling heat dissipation direct current charging device comprises a shell (1), wherein an air cooling mechanism (2) is installed at the upper part of an inner cavity of the shell (1), at least one first air inlet (3) is formed in the surface of the shell (1), and the first air inlet (3) is arranged corresponding to the air cooling mechanism (2); a liquid cooling charging module (4) is arranged at the lower part of the inner cavity of the shell (1), and a water inlet and a water outlet of the liquid cooling charging module (4) are respectively communicated with a water outlet and a water inlet of the air cooling mechanism (2); a water pump mechanism (5) is connected in series between the water inlet of the liquid cooling charging module (4) and the water outlet of the air cooling mechanism (2), or between the water outlet of the liquid cooling charging module (4) and the water inlet of the air cooling mechanism (2).
Description
Technical Field
The invention relates to the technical field of electric vehicle charging devices, in particular to a liquid cooling heat dissipation direct current charging device.
Background
With the vigorous popularization and application of the electric automobile technology, the yield of the electric automobile is increasing day by day, and the electric automobile enters thousands of households. Simultaneously, electric automobile's output well spouts formula growth, and is equally huge to the demand that fills electric pile. Although the number of charging piles is also increasing rapidly, the increase scale of the number of new energy vehicles is greatly higher than that of the charging piles. The high-speed expansion of the production scale of the electric automobile industry promotes the rapid development of the charging pile industry. On the contrary, the development of the charging pile industry is delayed, so that the expansion of the production scale of the automobile industry and the popularization of electric automobiles can be seriously influenced. Therefore, at present, the scale of the charging pile needs to be developed urgently to solve the contradiction between the supply and demand of the electric automobile and the charging pile. The general development trend of charging piles is that direct current charging piles replace alternating current charging piles, vehicle-mounted chargers (namely On Board chargers, OBC for short) are gradually eliminated, and high-power direct current quick charging is finally achieved. However, the development of the charging pile industry at the present stage is influenced by many factors such as electric vehicle technology, power grid infrastructure, city construction planning and the like. The construction of super high-power direct current charging stations is limited and cannot completely meet the life scene of people. Especially, urban trade circle, residential district etc. indoor outer parking area, the demand one kind can realize quick direct current charging, and general charging power is 20 ~ 60KW, and the small-size direct current that is convenient for install and share fills electric pile.
At present, the direct current charging devices or the charging piles of the same type in the market generally adopt a pure air cooling heat dissipation mode. The charging device or the charging pile with pure air cooling heat dissipation is characterized in that a built-in charging module is used for installing electronic components in a metal shell with single-side heat dissipation fins, heat of the heating electronic components is mainly transferred to the metal shell through intermediate links such as heat conduction silicone grease, heat conduction pouring sealant or heat conduction metal plates and then transferred to the surfaces of the fins, and finally air flow driven by a plurality of small-size fans is used for heat dissipation of the fins. The charging pile adopting the heat dissipation mode generally has the characteristics of large volume and weight, poor heat dissipation effect and high working noise. The charging product has the following defects: firstly, the heat dissipation fins are large in thickness, small in heat dissipation area of unit volume and low in heat dissipation efficiency; secondly, in order to obtain larger heat dissipation area, the volume and the weight of the product are greatly increased; thirdly, the frontal area of the fan is small, and the working noise is large due to the large number of the fans; fourthly, more heat conducting links and larger shell parts are used, so that the production difficulty is high and the manufacturing cost is high.
The pipe belt type air cooler commonly used in the current market generally adopts a single row of radiating pipes, so that the radiating area is small, and the overall radiating efficiency is lower.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a liquid cooling heat dissipation direct current charging device which combines air cooling and liquid cooling, has high heat dissipation efficiency, compact layout and smaller volume, realizes miniaturization and light weight, and has the following specific technical scheme:
a liquid cooling heat dissipation direct current charging device comprises a shell (1), wherein an air cooling mechanism (2) is installed at the upper part of an inner cavity of the shell (1), at least one first air inlet (3) is formed in the surface of the shell (1), and the first air inlet (3) is arranged corresponding to the air cooling mechanism (2);
a liquid cooling charging module (4) is arranged at the lower part of the inner cavity of the shell (1), and a water inlet and a water outlet of the liquid cooling charging module (4) are respectively communicated with a water outlet and a water inlet of the air cooling mechanism (2);
a water pump mechanism (5) is connected in series between the water inlet of the liquid cooling charging module (4) and the water outlet of the air cooling mechanism (2), or between the water outlet of the liquid cooling charging module (4) and the water inlet of the air cooling mechanism (2).
As an optimization: the air cooling device is characterized in that first air inlets (3) are uniformly distributed at the upper part of the back surface of the shell (1), the first air inlets (3) are arranged opposite to the air cooling mechanism (2), the front surface of the shell (1) is provided with air vents (6), air hood covers (7) are arranged on the air vents (6), and the air hood covers (7) are arranged opposite to fan blades in the air cooling mechanism (2);
second air inlets (8) are formed in two sides and the bottom of the shell (1) respectively, and the second air inlets (8) correspond to the liquid cooling charging modules (4).
As an optimization: the air cooling mechanism (2) is provided with at least one group of heat dissipation flat pipes (201), and heat dissipation pipes in the heat dissipation flat pipes (201) are connected through heat dissipation belts (202);
two side faces of the flat heat dissipation pipe (201) are provided with a motor (204) through a supporting seat (203) and a motor mounting support (213), the output end of the motor (204) is connected with a fan (205), the fan (205) is covered with a fan cover (206), one end of the fan cover (206) is opposite to the side face of the flat heat dissipation pipe (201), and the other end of the fan cover (206) is opposite to the fan cover (7).
As an optimization: the top of flat tub of heat dissipation (201) is provided with feed liquor storehouse (209), has seted up on this feed liquor storehouse (209) top and has gone up liquid mouth (207), should go up liquid mouth (207) with liquid cooling charging module (4) liquid outlet intercommunication the lower part of flat tub of heat dissipation (201) is provided with has seted up down liquid storehouse (210), opens on this down liquid storehouse (210) and sets up down liquid mouth (208), this down liquid mouth (208) with the liquid cooling charging module's (4) inlet intercommunication.
As an optimization: go up the top of liquid storehouse (209) still be provided with and annotate liquid mouth (211) and gas vent (212) through-hole (9) have been seted up at the top of casing (1), this through-hole (9) with annotate liquid mouth (211) and gas vent (212) relative setting, be provided with rubber seat (901) on this through-hole (9), be provided with rubber buffer (902) in this rubber seat (901).
As an optimization: an expansion tank (10) is further arranged in the inner cavity of the shell (1), and an inlet of the expansion tank (10) is communicated with the exhaust port (212).
As an optimization: the liquid cooling charging module (4) is provided with a module shell (41), a PCB module is arranged inside the module shell (41), a heat dissipation liquid flow channel is arranged inside the module shell (41), and a heating element of the PCB module is in contact with the heat dissipation liquid flow channel to perform heat exchange.
As an optimization: the shell (1) is formed by buckling a front shell (101) and a rear shell (102).
The air cooling mechanism (2) is provided with at least one fan (205), and the air outlet of the fan (205) is positioned in front of, behind, above, to the left of or to the right of the charging device.
The invention has the beneficial effects that:
1. compare traditional charging device, realized miniaturization and lightweight, the mounting means is nimble, adapts to vertical or wall-hanging mounting means.
2. The invention adopts a circulating liquid cooling technology, provides an efficient heat dissipation scheme, and solves the heat dissipation problem of a direct current charging device and a charging pile.
3. The liquid cooling charging module is adopted, heating components such as internal power devices, inductors, transformers and the like are tightly attached to the cooling water channel, the heat transfer path is short, and the heat dissipation effect is greatly improved; the structure overall arrangement is compact, reduces the volume and the weight of charging module and charging device, has improved volume power density, is favorable to using this charging device's the electric pile of filling to realize miniaturization, lightweight.
4. The invention adopts the high-efficiency pipe-belt type radiator, and the radiator body is provided with two rows of radiating flat pipes, thereby increasing the radiating area; meanwhile, the radiator is matched with a large-size cooling fan, so that the rotating speed of the motor is reduced, the charging pile using the charging device is favorable for improving the cooling efficiency, and the working noise is reduced.
5. The direct current charging device has the advantages of small volume, light weight, compact structure, reasonable layout, reduced material consumption, simplified process steps and reduced processing difficulty. The charging pile which is beneficial to applying the charging device reduces the production and manufacturing cost.
6. The charging power of the direct current charging device is generally 20-60 KW, the direct current charging device is suitable for the installation requirement of electric power facilities in most regions, and popularization and application of a charging pile applying the direct current charging device are facilitated.
7. The direct current charging device adopts a bidirectional charging and discharging technology, can charge the electric automobile by using the equipment, and can reversely input the electric quantity stored by the power battery of the electric automobile into a power grid by using the equipment. The charging pile using the charging device is beneficial to bidirectional electric energy interaction between the charging pile and the electric automobile, and the stability of a power grid is maintained.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the installation of the present invention.
FIG. 3 is a schematic structural view of an inventive air cooling mechanism.
Fig. 4 is a cross-sectional view a-a of fig. 3.
Fig. 5 is a schematic structural view of a flat heat dissipation pipe and a heat dissipation band in the present invention.
Fig. 6 is a schematic structural diagram of a liquid-cooled charging module according to the present invention.
Fig. 7 is a schematic flow diagram of a heat dissipation medium according to the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship 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, and these terms are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, or that the device or element must be constructed and operated in a specific orientation, and therefore, 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.
Furthermore, it should be noted that in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically indicated and limited. For example, it may be fixedly connected, or integrally connected; can be mechanically or electrically connected; may be a direct connection or may be an indirect connection via intermediate media. The above-mentioned specific meanings in the present invention can be understood by those skilled in the art as appropriate.
As shown in fig. 1 and 2: a liquid cooling heat dissipation direct current charging device comprises a shell 1, wherein the shell 1 is formed by buckling a front shell 101 and a rear shell 102, an air cooling mechanism 2 is installed on the upper portion of an inner cavity of the shell 1, first air inlets 3 are uniformly distributed on the rear shell 102, and the first air inlets 3 are arranged corresponding to the air cooling mechanism 2; a liquid cooling charging module 4 is arranged at the lower part of the inner cavity of the shell 1, and a water inlet and a water outlet of the liquid cooling charging module 4 are respectively communicated with a water outlet and a water inlet of the air cooling mechanism 2; and a water pump mechanism 5 is connected in series between the water inlet of the liquid cooling charging module 4 and the water outlet of the air cooling mechanism 2, or between the water outlet of the liquid cooling charging module 4 and the water inlet of the air cooling mechanism 2.
A ventilation hole 6 is formed in the front surface of the front shell 101, a fan cover 7 is arranged on the ventilation hole 6, and the fan cover 7 is arranged opposite to the fan blade in the air cooling mechanism 2;
the left side surface, the right side surface and the bottom of the shell 1 are respectively provided with a second air inlet 8, the second air inlets 8 and the liquid cooling charging module 4 are correspondingly arranged, and the liquid cooling charging module 4 can conveniently exchange heat with the outside air.
As shown in fig. 3, 4 and 5: the air cooling mechanism 2 is provided with two groups of heat dissipation flat tubes 201, and heat dissipation tubes in the heat dissipation flat tubes 201 are connected by heat dissipation belts 202; a motor 204 is mounted on two side surfaces of the flat heat dissipating tube 201 through a support base 203 and a motor mounting bracket 213, an output end of the motor 204 is connected with a fan 205, the fan 205 is covered with a fan housing 206, one end of the fan housing 206 is abutted against the side surface of the flat heat dissipating tube 201, and the other end is extended into the vent hole 6. Be provided with the feed liquor storehouse 209 at the top of flat heat dissipation pipe 201, should go up feed liquor storehouse 209 and flat heat dissipation pipe 201 intercommunication, seted up last liquid mouth 207 at this feed liquor storehouse 209 top, should go up liquid mouth 207 and the liquid cooling module 4 liquid outlet intercommunication that charges the lower part of flat heat dissipation pipe 201 is provided with and has seted up down feed liquor storehouse 210, and this lower feed liquor storehouse 210 and flat heat dissipation pipe 201 intercommunication set up down liquid mouth 208 on this lower feed liquor storehouse 210, this down liquid mouth 208 with the liquid cooling module 4's inlet intercommunication that charges. The top of the upper liquid bin 209 is also provided with a liquid injection port 211 and an exhaust port 212, the top of the shell 1 is provided with a through hole 9, the through hole 9 is opposite to the liquid injection port 211 and the exhaust port 212, a rubber seat 901 is arranged in the through hole 9, a rubber plug 902 is arranged in the rubber seat 901, and the rubber plug 902 is right opposite to the liquid injection port 211. An expansion tank 10 is also arranged in the inner cavity of the shell 1, and an inlet of the expansion tank 10 is communicated with the exhaust port 212.
The flat heat dissipation pipes 201 in the air cooling mechanism 2 are vertically arranged in two rows along the direction perpendicular to the air flow direction, and a heat dissipation belt 202 is welded between two adjacent rows of the flat heat dissipation pipes 201 to form a heat dissipation body. An upper liquid bin 209 is arranged at the top of the radiator body, a lower liquid bin 210 is arranged at the bottom of the radiator body, and supporting seats 203 are arranged on the left side and the right side of the radiator body. An upper liquid nozzle 207 is arranged outside the upper liquid bin 209, and the upper liquid nozzle 207 is connected with a water outlet interface of the liquid cooling charging module 4; and a liquid injection port 211 and an air exhaust port 212 which are arranged at the top of the upper liquid cabin 209 are used for filling cooling liquid and connecting the expansion tank 10. The lower liquid tank 210 is externally provided with a lower liquid nozzle 208, and the lower liquid nozzle 208 is connected with the water pump mechanism 5. The lower fluid chamber 210 is equipped with a pressure sensor for real-time monitoring and feedback of the pressure parameters of the cooling fluid pipeline. High-temperature coolant flows into the upper liquid bin 209 from the upper liquid nozzle 207, the upper liquid bin 209 is shunted to the flat heat dissipation tube 201 of the radiator body, heat is transferred to the atmosphere through the flat heat dissipation tube 201 and the heat dissipation belt 202 when flowing through the radiator body, the heat is reduced to become low-temperature coolant and is converged to the lower liquid bin 210, and the low-temperature coolant returns to the water pump mechanism 5 from the lower liquid nozzle 208. A fan housing 206 is mounted on the front surface of the radiator body, and a motor 204 and a fan 205 are mounted on the fan housing 206. The motor 204 and the fan 205 rotate to drive air to flow, negative pressure is formed between the fan 205 and the radiator body, air enters from the back of the air cooler, passes through the flat heat dissipation pipe 201 and the heat dissipation belt 202, and is exhausted from an air opening of the fan cover 206. The air that flows through absorbs the heat of high temperature coolant through the radiator body, releases the heat to the atmosphere in, accomplishes charging device's heat dissipation finally.
A charging module mounting seat and a cooler mounting seat are arranged in the shell 1 and are respectively used for mounting a liquid cooling charging module 4 and an air cooling mechanism 2, ventilation openings are formed in the periphery of the inner wall of the cooler mounting seat, and first air inlets 3 are respectively formed in the back, the left side, the right side and the bottom of the shell 1; when the equipment works, the fan 205 in the air cooling mechanism 2 rotates to generate negative pressure, air is mainly sucked from the first air inlet 3 on the back, and the air path is as follows: back atmosphere-first air intake 3 at back-radiator body-fan 205-front atmosphere;
other air is sucked from the first air inlet 3 on the left side, the first air inlet 3 on the right side and the second air inlet 8 on the bottom, and the air paths are as follows: left and right first air intakes 3 and bottom second air intake 8-heater body-fan 205-front atmosphere. Meanwhile, the atmosphere on the left side, the right side and the bottom flows through the outer surface of the shell of the liquid cooling charging module 4, so that the auxiliary heat dissipation effect can be achieved. In this embodiment, the dc charging device is configured with the first back air inlet 3 as the main air inlet, and the first left and right side air inlets 3 and the second bottom air inlet 8 as the auxiliary air inlets, so that the size of the first air inlet 3 is larger than that of the second air inlet 8.
Can deposit the coolant liquid as the make-up fluid in the expansion tank 10, compensate the loss of coolant liquid in the work, the liquid level of make-up fluid need be guaranteed between MIN and MAX, and when the liquid level was crossed lowly, control system can feed back the warning suggestion according to level sensor's monitoring, and when the coolant liquid expanded because of the temperature risees, the air in the expansion tank 10 can compress, cushions the pressure that the inflation produced. When the pressure exceeds the set value of the pressure release valve, the pressure release valve can be opened to be communicated with the atmosphere, and the pressure of the cooling channel is released. The expansion tank 10 has the functions of storing the replenishing liquid, buffering the pressure and relieving the pressure. Rubber seat 901 and rubber buffer 902 are installed to casing 1 top, and rubber seat 901 has supporting and anti-skidding effect for the support cable that charges, rubber buffer 902 correspond annotates liquid mouth 211, conveniently dismantle and annotate the coolant liquid with adding.
As shown in fig. 6 and 7: the liquid cooling charging module 4 is provided with a module housing 41, a PCB module is arranged inside the module housing 41, a heat dissipation liquid flow channel is arranged inside the module housing 41, a heating element of the PCB module contacts with the heat dissipation liquid flow channel to perform heat exchange, and the heating element comprises heating components such as a power device, an inductor and a transformer. The module case 41 is an aluminum alloy die-cast part, and a heat dissipation water channel is formed inside the module case. The heat dissipation water channel is connected with the water inlet interface and the water outlet interface, the other end of the water inlet interface is connected with the output port of the water pump mechanism 5, and the water outlet interface is connected with the water inlet of the air cooling mechanism 2. The water pump mechanism 5 drives the cooling liquid to enter the heat dissipation water channel inside the liquid-cooling charging module 4 from the water inlet, the cooling liquid absorbs heat of the heating element, and the high-temperature cooling liquid absorbing the heat flows out from the water outlet and flows to the air cooling mechanism 2 to release the heat. The water inlet interface is provided with an inlet temperature sensor, the water outlet interface is provided with an outlet temperature sensor, the temperature condition of the cooling liquid is monitored and fed back in real time, and the closed-loop control of the system is realized. Compared with the air cooling mechanism 2, the liquid cooling charging module 4 has small volume and light weight, and the specific reasons are as follows: the water channel of the liquid cooling charging module 4 is positioned in the middle of the shell 1, liquid cooling heat dissipation efficiency is high, heating elements can be compactly arranged around the water channel, and occupied space is small. Secondly, the shell 1 is not provided with radiating fins and air cooling channels, and the surface area of the shell 1 is not required to be increased for radiating, so that the size and the weight of the liquid cooling charging module 4 are reduced. The liquid cooling module of charging 4 passes through the casing, down apron, upper cover plate and signal apron etc. and realizes the totally enclosed of module to realize ventilative waterproof function through the breather valve. The signal cover plate is made of nonmetal and non-shielding materials, has the functions of sealing and penetrating through wireless signals, and can realize wireless communication transmission and control functions.
Claims (9)
1. The utility model provides a liquid cooling heat dissipation direct current charging device, includes casing (1), its characterized in that: an air cooling mechanism (2) is arranged at the upper part of the inner cavity of the shell (1), at least one first air inlet (3) is formed in the surface of the shell (1), and the first air inlet (3) is arranged corresponding to the air cooling mechanism (2);
a liquid cooling charging module (4) is arranged at the lower part of the inner cavity of the shell (1), and a water inlet and a water outlet of the liquid cooling charging module (4) are respectively communicated with a water outlet and a water inlet of the air cooling mechanism (2);
a water pump mechanism (5) is connected in series between the water inlet of the liquid cooling charging module (4) and the water outlet of the air cooling mechanism (2), or between the water outlet of the liquid cooling charging module (4) and the water inlet of the air cooling mechanism (2).
2. The liquid-cooled heat-dissipating dc charging device as set forth in claim 1, wherein: the air cooling device is characterized in that first air inlets (3) are uniformly distributed at the upper part of the back surface of the shell (1), the first air inlets (3) are arranged opposite to the air cooling mechanism (2), the front surface of the shell (1) is provided with air vents (6), air hood covers (7) are arranged on the air vents (6), and the air hood covers (7) are arranged opposite to fan blades in the air cooling mechanism (2);
second air inlets (8) are formed in two sides and the bottom of the shell (1) respectively, and the second air inlets (8) correspond to the liquid cooling charging modules (4).
3. The liquid-cooled heat-dissipating dc charging device as set forth in claim 2, wherein: the air cooling mechanism (2) is provided with at least one group of heat dissipation flat pipes (201), and heat dissipation pipes in the heat dissipation flat pipes (201) are connected through heat dissipation belts (202);
the motor (204) is arranged on two side faces of the flat heat dissipation pipe (201) through the supporting seat (203) and the motor mounting support (213), the output end of the motor (204) is connected with the fan (205), the fan (205) is covered with the fan cover (206), one end of the fan cover (206) is opposite to the side face of the flat heat dissipation pipe (201), and the other end of the fan cover (206) is opposite to the fan cover (7).
4. The liquid-cooled heat-dissipating dc charging device as set forth in claim 3, wherein: the top of flat tub of heat dissipation (201) is provided with feed liquor storehouse (209), has seted up on this feed liquor storehouse (209) top and has gone up liquid mouth (207), should go up liquid mouth (207) with liquid cooling charging module (4) liquid outlet intercommunication the lower part of flat tub of heat dissipation (201) is provided with has seted up down liquid storehouse (210), opens on this down liquid storehouse (210) and sets up down liquid mouth (208), this down liquid mouth (208) with the liquid cooling charging module's (4) inlet intercommunication.
5. The liquid-cooled heat-dissipating dc charging device as set forth in claim 4, wherein: go up the top of liquid storehouse (209) still be provided with and annotate liquid mouth (211) and gas vent (212) through-hole (9) have been seted up at the top of casing (1), this through-hole (9) with annotate liquid mouth (211) and gas vent (212) relative setting, be provided with rubber seat (901) on this through-hole (9), be provided with rubber buffer (902) in this rubber seat (901).
6. The liquid-cooled heat-dissipating dc charging device as set forth in claim 5, wherein: an expansion tank (10) is further arranged in the inner cavity of the shell (1), and an inlet of the expansion tank (10) is communicated with the exhaust port (212).
7. The liquid-cooled heat-dissipating dc charging device as set forth in claim 1, wherein: the liquid cooling charging module (4) is provided with a module shell (41), a PCB module is arranged inside the module shell (41), a heat dissipation liquid flow channel is arranged inside the module shell (41), and a heating element of the PCB module is in contact with the heat dissipation liquid flow channel to perform heat exchange.
8. The liquid-cooled heat-dissipating dc charging device as set forth in claim 1, wherein: the shell (1) is formed by buckling a front shell (101) and a rear shell (102).
9. The liquid-cooled heat-dissipating dc charging device as set forth in claim 1, wherein: the air cooling mechanism (2) is provided with at least one fan (205), and the air outlet of the fan (205) is positioned in front of, behind, above, to the left of or to the right of the charging device.
Priority Applications (1)
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| CN202111196861.8A CN113895264A (en) | 2021-10-14 | 2021-10-14 | Liquid cooling heat dissipation direct current charging device |
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| CN202111196861.8A CN113895264A (en) | 2021-10-14 | 2021-10-14 | Liquid cooling heat dissipation direct current charging device |
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| CN113895264A true CN113895264A (en) | 2022-01-07 |
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| CN202111196861.8A Pending CN113895264A (en) | 2021-10-14 | 2021-10-14 | Liquid cooling heat dissipation direct current charging device |
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