CN113658752A - Cooling system and fill electric pile - Google Patents
Cooling system and fill electric pile Download PDFInfo
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- CN113658752A CN113658752A CN202110885906.6A CN202110885906A CN113658752A CN 113658752 A CN113658752 A CN 113658752A CN 202110885906 A CN202110885906 A CN 202110885906A CN 113658752 A CN113658752 A CN 113658752A
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- sleeve
- branch pipe
- cooling medium
- cable
- storage tank
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- 238000001816 cooling Methods 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 claims abstract description 125
- 239000002826 coolant Substances 0.000 claims abstract description 101
- 238000005192 partition Methods 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 description 8
- 239000003921 oil Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000032258 transport Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010690 paraffinic oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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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
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
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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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- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a cooling system comprising: the cooling system comprises a first cooling medium, a first pipeline system, a first liquid storage tank, a first driving element and a sleeve, wherein the first cooling medium is stored in the first liquid storage tank. The first liquid storage tank and the sleeve form a circulating flow system through the first pipeline system, a first cooling medium reaches the sleeve from the first liquid storage tank along the first pipeline system under the driving of the first driving element and absorbs the heat of a cable positioned in the inner cavity of the sleeve, and the first cooling medium after heat absorption flows back to the first liquid storage tank from the inner cavity of the sleeve along the first pipeline system. The first cooling medium absorbs the heat of the cable, so that the effects of reducing the heat loss of the cable and ensuring the power supply power of the cable are achieved. Furthermore, a charging pile comprising the cooling system is provided.
Description
Technical Field
The invention relates to the technical field of new energy automobile charging, in particular to a cooling system and a charging pile.
Background
With the continuous development of new energy automobile technology, the requirement on the charging speed of the automobile is higher and higher correspondingly. The existing charging pile has promoted the charging power to more than 300KW, even to 600-800 KW.
Although the charging piles can basically ensure that the electric quantity of the electric vehicle is increased to more than 80% within 8-15 minutes, the problem of long charging time of the electric vehicle is solved, high-power charging work of the charging piles easily causes higher power loss and potential safety hazards. The charging pile mainly focuses on two points, and the first is that the cable generates heat seriously when the charging pile works at high power, so that the power loss of the cable is increased, and the charging efficiency of the charging pile is reduced; secondly, the transmission current of the charging pile is large, and when the charging head of the charging pile is manually contacted, the risk of electric shock possibly exists.
Disclosure of Invention
In view of the above, there is a need to provide a cooling system for cooling a cable, and further to provide a charging post including the cooling system.
A cooling system, the cooling system comprising:
the cooling device comprises a first cooling medium, a first pipeline system, a first liquid storage tank, a first driving element and a sleeve, wherein the first cooling medium is stored in the first liquid storage tank, the sleeve is provided with an inner cavity through which a cable can pass along the axial direction of the sleeve, and the first pipeline system is communicated with the inner cavity of the sleeve and the first liquid storage tank;
the first driving element is installed on the first pipeline system, the first cooling medium enters the inner cavity of the sleeve from the first liquid storage tank along the first pipeline system, and the first cooling medium absorbing the heat of the cable flows out of the inner cavity of the sleeve and flows back into the first liquid storage tank along the first pipeline system.
According to the cooling system, the cable penetrates through the inner cavity of the sleeve along the axis, when the cable supplies power, the first cooling medium in the first liquid storage box is respectively conveyed to the inner cavity of the sleeve along the first pipeline system by the first driving element, the first cooling medium entering the inner cavity of the sleeve can absorb heat of the cable, and the first cooling medium which has absorbed heat of the cable flows back into the first liquid storage box from the inner part of the sleeve along the first pipeline system. In the process, the first cooling medium circularly enters the inner cavity of the sleeve and absorbs and takes away the heat of the cable, so that the effects of reducing the heat loss of the cable and ensuring the power supply power of the cable are achieved.
In one embodiment, the sleeve comprises a first end face and a second end face which are opposite to each other, the first end face and the second end face respectively seal two ends of the sleeve, the inner cavity of the sleeve is provided with an isolation layer, one end of the isolation layer is arranged on the first end face, the other end of the isolation layer is not in contact with the second end face, the isolation layer divides the inner cavity of the sleeve into a first space and a second space, and the first space is communicated with the second space;
the first end face is provided with a first cable hole, a first liquid inlet hole and a first liquid outlet hole, the first cable hole and the first liquid inlet hole are respectively communicated with the first space and the external space outside the sleeve, the first liquid outlet hole is communicated with the second space and the external space outside the sleeve, the second end face is provided with a second cable hole, the second cable hole is communicated with the inner cavity of the sleeve and the external space outside the sleeve, and a cable can sequentially penetrate through the first cable hole and the second cable hole;
the first driving element conveys the first cooling medium in the first liquid storage tank to the first liquid inlet hole along the first pipeline system, the first cooling medium absorbs heat of the cable in the first space and enters the second space, and then the first cooling medium flows out of the first liquid outlet hole and flows back to the first liquid storage tank along the first pipeline system.
In one embodiment, the first pipeline system comprises a first branch pipe and a second branch pipe, one end of the first branch pipe is communicated with the first liquid storage tank, the other end of the first branch pipe is communicated with the first liquid inlet hole, and the first driving element is arranged on the first branch pipe; one end of the second branch pipe is communicated with the first liquid outlet hole, and the other end of the second branch pipe is communicated with the first liquid storage tank.
In one embodiment, the cooling system further comprises a heat exchanger, a second cooling medium, a second pipe system, a second tank storing the second cooling medium, and a second driving element;
the first pipeline system is communicated with the heat exchanger, the second pipeline system is communicated with the heat exchanger and the second liquid storage tank, the first cooling medium enters a first liquid inlet of the heat exchanger along the first pipeline system when flowing out of the sleeve, the second driving element drives the second cooling medium of the second liquid storage tank to enter a second liquid inlet of the heat exchanger along the second pipeline system, and the second cooling medium absorbs heat of the first cooling medium in the heat exchanger;
the first cooling medium flows out of a first liquid outlet of the heat exchanger and flows back to the first liquid storage tank along the first pipeline system, and the second cooling medium flows out of a second liquid outlet of the heat exchanger and flows back to the second liquid storage tank along the second pipeline system.
In one embodiment, the first pipeline system comprises a first branch pipe, a second branch pipe and a third branch pipe, one end of the first branch pipe is communicated with the first liquid storage tank, the other end of the first branch pipe is communicated with the first liquid inlet hole, and the first driving element is arranged on the first branch pipe; one end of the second branch pipe is communicated with the first liquid outlet hole, and the other end of the second branch pipe is communicated with the first liquid inlet of the heat exchanger; one end of the third branch pipe is communicated with the first liquid outlet of the heat exchanger, and the other end of the third branch pipe is communicated with the first liquid storage tank;
the second pipeline system comprises a fourth branch pipe and a fifth branch pipe, one end of the fourth branch pipe is communicated with the second liquid storage tank, the other end of the fourth branch pipe is communicated with a second liquid inlet of the heat exchanger, and the second driving element is arranged on the fourth branch pipe; one end of the fifth branch pipe is communicated with a second liquid outlet of the heat exchanger, and the other end of the fifth branch pipe is communicated with the second liquid storage tank.
In one embodiment, the cooling system further comprises an air cooling device, and the air cooling device dissipates heat of the second cooling medium of the second liquid storage tank.
In one embodiment, the cooling system further comprises a seal disposed between the first cable hole and the cable and between the second cable hole and the cable, respectively.
The utility model provides a fill electric pile, fill electric pile includes cooling system, still include the cable and charge the head, the cable does charge the head power supply, charge the head for waiting to charge the product power supply, the cable is followed sheathed tube axis direction passes the sleeve pipe inner chamber.
In one embodiment, the charging pile further comprises a multi-degree-of-freedom manipulator, the charging head is arranged on the multi-degree-of-freedom manipulator, and the multi-degree-of-freedom manipulator drives the charging head to move.
In one embodiment, a positioning module is arranged on the charging head, and the positioning module detects and determines the position of a charging port of the product to be charged;
the positioning module is electrically connected with the control module of the multi-degree-of-freedom manipulator, and the positioning module can control the multi-degree-of-freedom manipulator to move so that the charging head is matched with a charging port of a product to be charged.
Drawings
FIG. 1 is a block diagram of a cooling system in accordance with an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bushing according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the bushing of FIG. 2;
FIG. 4 is a schematic diagram of a cooling system according to an embodiment of the present invention;
FIG. 5 is a schematic block diagram of a cooling system according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a cooling system according to another embodiment of the present invention.
Description of reference numerals:
10. a cooling system;
100. a first pipe system; 110. a first branch pipe; 120. a second branch pipe; 130. a third branch pipe;
200. a first liquid storage tank; 300. a first drive element;
400. a sleeve; 410. a first end face; 411. a first cable hole; 412. a first liquid inlet hole; 413. a first liquid outlet hole; 420. a second end face; 421. a second cable hole; 430. an isolation layer; 431. a first space; 432. a second space;
500. a heat exchanger; 600. a second pipe system; 610. a fourth branch pipe; 620. a fifth branch pipe; 700. a second liquid storage tank; 800. a second drive element; 900. an electrical cable.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, fig. 1 shows a block schematic diagram of a cooling system according to an embodiment of the present invention, and a cooling system 10 according to an embodiment of the present invention includes: a first cooling medium, a first pipe system 100, a first tank 200, a first drive element 300, and a jacket 400, wherein the first cooling medium is stored in the first tank 200. The idea of this embodiment is that the first pipeline system 100 forms the first liquid storage tank 200 and the sleeve 400 into a circulating flow system, the first cooling medium is driven by the first driving element 300 to reach the sleeve 400 from the first liquid storage tank 200 along the first pipeline system 100, and absorbs heat of the cable located in the inner cavity of the sleeve 400, and the heat-absorbed first cooling medium flows back to the first liquid storage tank 200 from the inner cavity of the sleeve 400 along the first pipeline system 100. The first cooling medium absorbs the heat of the cable, so that the effects of reducing the heat loss of the cable and ensuring the power supply power of the cable are achieved.
Specifically, the sleeve 400 has an inner cavity for cables to pass through along the axial direction of the sleeve 400, and the first pipeline system 100 is communicated with the inner cavity of the sleeve 400 and the first liquid storage tank 200; the first driving element 300 is installed in the first pipe system 100, the first driving element 300 allows the first cooling medium to enter the inner cavity of the sleeve 400 from the first liquid storage tank 200 along the first pipe system 100, and the first cooling medium absorbing the heat of the cable flows out of the inner cavity of the sleeve 400 and flows back into the first liquid storage tank 200 along the first pipe system 100. In the above process, the first cooling medium circularly enters the inner cavity of the sleeve 400 and absorbs and takes away the heat of the cable, thereby achieving the effects of reducing the heat loss of the cable and ensuring the power supply power of the cable.
In order to enable the cable to pass through the sleeve 400 and the first cooling medium to enter the sleeve 400 and absorb heat of the cable well in the inner cavity of the sleeve 400 and then flow out of the sleeve 400, in one possible embodiment, as shown in fig. 2 and 3, the sleeve 400 includes a first end surface 410 and a second end surface 420 opposite to each other, wherein the first end surface 410 and the second end surface 420 respectively seal both ends of the sleeve 400, the inner cavity of the sleeve 400 is provided with a separation layer 430, one end of the separation layer 430 is disposed on the first end surface 410, the other end is not in contact with the second end surface 420, the separation layer 430 divides the inner cavity of the sleeve 400 into a first space 431 and a second space 432, and the first space 431 is communicated with the second space 432. It should be noted that the isolation layer 430 may be an isolation plate, which divides the inner cavity of the cannula 400 into a first space 431 and a second space 432, and the cable 900 passes through the first space 431; the insulation barrel can also be used, the area covered by the insulation barrel is the first space 431, the other area is the second space 432, and the cable 900 is positioned in the insulation barrel, namely in the first space 431.
First terminal surface 410 is provided with first cable hole 411, first feed liquor hole 412 and first play liquid hole 413, first cable hole 411 and first feed liquor hole 412 communicate first space 431 and the external space outside sleeve 400 respectively, first play liquid hole 413 intercommunication second space 432 and the external space outside sleeve 400, second terminal surface 420 is provided with second cable hole 421, second cable hole 421 intercommunication sleeve 400 inner chamber and the external space outside sleeve 400, the cable can pass first cable hole 411 and second cable hole 421 in proper order. In order to ensure the sealing performance between the cable and the first and second cable holes 411 and 421, a sealing member (not shown) may be disposed between the cable and the first cable hole 411, and a sealing member may be disposed between the cable and the second cable hole 421.
The first driving unit 300 transfers the first cooling medium in the first tank 200 to the first inlet hole 412 along the first pipe system 100, and the first cooling medium absorbs heat of the cable 900 in the first space 431 and enters the second space 432, and then flows out of the first outlet hole 413 and flows back along the first pipe system 100 to enter the first tank 200. The first cable hole 411 and the second cable hole 421 provided in the sleeve 400 allow the cable 900 to pass through, so that the outer wall of the cable can be cooled in the inner cavity of the sleeve 400. By arranging the first liquid inlet hole 412, the first liquid outlet hole 413 and the isolation layer 430 on the sleeve 400, when the first cooling medium enters the inner cavity of the sleeve 400, the cable 900 is cooled in the first space 431, and then the first cooling medium flows out from the second space 432, so that the first cooling medium is prevented from being mixed with the first cooling medium after heat absorption when entering the inner cavity of the sleeve 400, and the heat absorption effect of the first cooling medium can be reduced.
It should be noted that, a plurality of first liquid inlet holes 412 and a plurality of first liquid outlet holes 413 may be further disposed on the first end surface 410 of the sleeve 400, so as to accelerate the first cooling medium to enter the inner cavity of the sleeve 400, and to better absorb the heat of the cable 900.
In order to realize that the first pipe system 100 communicates the first tank 200 and the sleeve 400, so that the first cooling medium circulates along the first pipe system 100 between the first tank and the sleeve 400, in an embodiment, referring to fig. 4, the first pipe system 100 includes a first branch pipe 110 and a second branch pipe 120, wherein one end of the first branch pipe 110 communicates with the first tank 200, and the other end communicates with a first inlet hole 412 of the sleeve 400, and a first driving element 300 is disposed at the first branch pipe 110; one end of the second branch pipe 120 is communicated with the first liquid outlet 413 of the sleeve 400, and the other end is communicated with the first liquid storage tank 200.
When the first cooling medium is needed to cool the cable 900, the first driving element 300 starts to operate, the first driving element 300 conveys the first cooling medium in the first reservoir 200 to the first branch pipe 110, the first cooling medium enters the first liquid inlet 412 of the sleeve 400 along the first branch pipe 110, the first cooling medium absorbs heat of the cable 900 in the first space 431 of the inner cavity of the sleeve 400 and enters the second space 432, and the first cooling medium entering the second space 432 flows out of the first liquid outlet 413 and flows back to the first reservoir 200 along the second branch pipe 120. The first piping system 100 is realized by this process such that the first cooling medium circulates between the first tank 200 and the jacket 400.
It is considered that the first cooling medium after absorbing heat may affect the temperature of the other first cooling medium in the first tank 200, thereby causing the heat absorbing effect of the first cooling medium to be reduced. In this case, an air cooling device, such as a fan, may be provided near the first reservoir 200; it is also possible to lower the temperature of the first cooling medium that flows back into the first reservoir 200 by providing another cooling medium to absorb heat from the first cooling medium.
Further, in an embodiment, referring to fig. 5, the cooling system 10 further includes a heat exchanger 500, a second cooling medium, a second pipeline system 600, a second liquid storage tank 700, and a second driving element 800, wherein the second liquid storage tank 700 stores the second cooling medium. The first pipeline system 100 is communicated with the heat exchanger 500, the second pipeline system 600 is communicated with the heat exchanger 500 and the second liquid storage tank 700, when flowing out from the sleeve 400, the first cooling medium enters a first liquid inlet of the heat exchanger 500 along the first pipeline system 100, the second driving element 800 drives the second cooling medium of the second liquid storage tank 700 to enter a second liquid inlet of the heat exchanger 500 along the second pipeline system 600, the second cooling medium absorbs heat of the first cooling medium in the heat exchanger 500, the first cooling medium flows out from a first liquid outlet of the heat exchanger 500 and flows back to the first liquid storage tank 200 along the first pipeline system 100, and the second cooling medium flows out from a second liquid outlet of the heat exchanger 500 and flows back to the second liquid storage tank 700 along the second pipeline system 600.
The idea of this embodiment is that the heat exchanger 500 is used to exchange heat between the first cooling medium and the second cooling medium, so that the heat of the first cooling medium flowing out of the jacket 400 is absorbed by the second cooling medium in the heat exchanger 500, and the temperature of the first cooling medium flowing out of the heat exchanger 500 is reduced, so that the first cooling medium flowing back to the first liquid storage tank 200 does not greatly affect the temperature of other first cooling media in the first liquid storage tank 200, and the first cooling medium flowing out of the first liquid storage tank 200 is ensured to be able to better absorb the heat of the cable in the inner cavity of the jacket 400.
In order to better realize that the first pipeline system 100 transports the first cooling medium to flow between the first tank 200, the sleeve 400 and the heat exchanger 500, and the second pipeline system 600 transports the second cooling medium to flow between the second tank 700 and the heat exchanger 500, in an embodiment, referring to fig. 6, the first pipeline system 100 comprises a first branch pipe 110, a second branch pipe 120 and a third branch pipe 130, wherein one end of the first branch pipe 110 is communicated with the first tank 200, and the other end is communicated with the first liquid inlet hole 412 of the sleeve 400, and the first driving element 300 is arranged on the first branch pipe 110; one end of the second branch pipe 120 is communicated with the first liquid outlet 413 of the sleeve 400, and the other end is communicated with the first liquid inlet of the heat exchanger 500; one end of the third branch pipe 130 is communicated with the first liquid outlet of the heat exchanger 500, and the other end is communicated with the first liquid storage tank 200.
The second pipeline system 600 comprises a fourth branch pipe 610 and a fifth branch pipe 620, one end of the fourth branch pipe 610 is communicated with the second liquid storage tank 700, the other end of the fourth branch pipe 610 is communicated with a second liquid inlet of the heat exchanger 500, and the second driving element 800 is arranged on the fourth branch pipe 610; one end of the fifth branch pipe 620 is communicated with the second liquid outlet of the heat exchanger 500, and the other end is communicated with the second liquid storage tank 700. It should be noted that the heat exchanger 500 may be a plate heat exchanger 500.
Through the above process, the first pipeline system 100 conveys the first cooling medium to circularly flow among the first liquid storage tank 200, the sleeve 400 and the heat exchanger 500, and the second pipeline system 600 conveys the second cooling medium to circularly flow among the second liquid storage tank 700 and the heat exchanger 500, so that the heat of the first cooling medium flowing out of the inner cavity of the sleeve 400 is absorbed by the second cooling medium in the heat exchanger 500, and the temperature of other cooling media in the first liquid storage tank 200 cannot be greatly influenced after the first cooling medium flows back to the first liquid storage tank 200.
In consideration of the fact that the temperature of other second cooling media in the second liquid storage tank may be affected after the second cooling medium absorbs the heat of the first cooling medium and flows back to the second liquid storage tank, and further the effect that the second cooling medium absorbs the first cooling medium is affected, in one embodiment, the cooling system further comprises an air cooling device, wherein the air cooling device dissipates heat of the second cooling medium of the second liquid storage tank, and the air cooling device can be a fan.
In order to enable the first cooling medium to absorb the heat of the cable well, the first cooling medium can be insulating oil, and oil products with different freezing points can be selected according to different regional environment temperatures. For example, 25# oil is a region having an ambient temperature of not less than-20 ℃, 45# oil is a region having an ambient temperature of not less than-45 ℃, 25# transformer oil belongs to paraffinic oil, and 45# transformer oil is naphthenic oil. The second cooling medium may be selected from water or other cooling media that absorb heat relatively well.
The invention further provides a charging pile which comprises the cooling system, a cable and a charging head, wherein the cable supplies power to the charging head, the charging head supplies power to a product to be charged, the cooling system cools the cable, and the cable can penetrate through the inner cavity of the sleeve along the axial direction of the sleeve in the cooling system. The product to be charged may be an electric vehicle. When a product to be charged is supplied with power through the charging head, the cooling system starts to work, and absorbs the heat of the cable, so that the heat loss of the cable in the power transmission process is reduced, and the power supply power of the cable is ensured. The cable can be selected from short-length and large-diameter cables, and the cable generates less heat in the power transmission process.
Because the electric current that the head that charges flows is great, operating personnel direct contact the head that charges probably has the risk of electrocuting, and in an embodiment, fill electric pile and still include the multi freedom manipulator, wherein the head that charges sets up in the multi freedom manipulator, and the multi freedom manipulator drives the head that charges and removes. The charging head is connected with the charging port of the product to be charged by operating the multi-degree-of-freedom manipulator, so that the possible electric shock risk of directly operating the charging head is reduced. The multi-degree-of-freedom manipulator may include an insulating portion, and the charging head and the product to be charged may be charged by operating the insulating portion. The multi-degree-of-freedom manipulator can be preferably a six-degree-of-freedom manipulator, so that a more flexible moving mode can be realized.
Furthermore, in order to more intelligently realize the connection between the charging head and the charging port of the product to be charged, in one embodiment, the charging head is provided with a positioning module, the positioning module detects and determines the charging port of the product to be charged, the positioning module is electrically connected with the control module of the multi-degree-of-freedom manipulator, and the positioning module can control the multi-degree-of-freedom manipulator to move, so that the charging head is matched with the charging port of the product to be charged. In the process, personnel do not need to operate the charging head or the multi-degree-of-freedom mechanical arm, for example, when the charging port of the electric automobile is close to the charging head, after the positioning module on the charging head detects and identifies the charging port of the product to be charged, the positioning module plans a moving path, the multi-degree-of-freedom mechanical arm moves according to the planned path, and after the multi-degree-of-freedom mechanical arm moves in place, the charging head is matched with the charging port of the product to be charged, so that automatic charging is realized.
In an implementation mode, the positioning module comprises a laser and a reflector, the reflector can be arranged at a charging port of a charging head and a product to be charged, the distance between the reflector on the charging head and the reflector of the product to be charged can be calculated in the process that the laser on the charging head scans the environment for a circle, and then a moving path is planned so that the multi-degree-of-freedom manipulator drives the charging head to move.
In order to avoid that the charging head may collide with the product to be charged during movement, in an embodiment the charging head housing comprises a flexible buffer portion, which is capable of reducing the collision force between the charging head and the product to be charged.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cooling system, characterized in that the cooling system comprises:
the cooling device comprises a first cooling medium, a first pipeline system, a first liquid storage tank, a first driving element and a sleeve, wherein the first cooling medium is stored in the first liquid storage tank, the sleeve is provided with an inner cavity through which a cable can pass along the axial direction of the sleeve, and the first pipeline system is communicated with the inner cavity of the sleeve and the first liquid storage tank;
the first driving element is installed on the first pipeline system, the first cooling medium enters the inner cavity of the sleeve from the first liquid storage tank along the first pipeline system, and the first cooling medium absorbing the heat of the cable flows out of the inner cavity of the sleeve and flows back into the first liquid storage tank along the first pipeline system.
2. The cooling system according to claim 1, wherein the sleeve includes first and second opposite end surfaces that respectively seal both ends of the sleeve, the inner cavity of the sleeve is provided with a partition layer, one end of the partition layer is provided to the first end surface, and the other end is not in contact with the second end surface, the partition layer divides the inner cavity of the sleeve into first and second spaces, and the first space communicates with the second space;
the first end face is provided with a first cable hole, a first liquid inlet hole and a first liquid outlet hole, the first cable hole and the first liquid inlet hole are respectively communicated with the first space and the external space outside the sleeve, the first liquid outlet hole is communicated with the second space and the external space outside the sleeve, the second end face is provided with a second cable hole, the second cable hole is communicated with the inner cavity of the sleeve and the external space outside the sleeve, and a cable can sequentially penetrate through the first cable hole and the second cable hole;
the first driving element conveys the first cooling medium in the first liquid storage tank to the first liquid inlet hole along the first pipeline system, the first cooling medium absorbs heat of the cable in the first space and enters the second space, and then the first cooling medium flows out of the first liquid outlet hole and flows back to the first liquid storage tank along the first pipeline system.
3. The cooling system according to claim 2, wherein the first piping system includes a first branch pipe and a second branch pipe, one end of the first branch pipe communicates with the first reservoir, and the other end communicates with the first liquid inlet hole, the first driving member is provided at the first branch pipe; one end of the second branch pipe is communicated with the first liquid outlet hole, and the other end of the second branch pipe is communicated with the first liquid storage tank.
4. The cooling system according to claim 2, further comprising a heat exchanger, a second cooling medium, a second piping system, a second tank storing the second cooling medium, and a second driving element;
the first pipeline system is communicated with the heat exchanger, the second pipeline system is communicated with the heat exchanger and the second liquid storage tank, the first cooling medium enters a first liquid inlet of the heat exchanger along the first pipeline system when flowing out of the sleeve, the second driving element drives the second cooling medium of the second liquid storage tank to enter a second liquid inlet of the heat exchanger along the second pipeline system, and the second cooling medium absorbs heat of the first cooling medium in the heat exchanger;
the first cooling medium flows out of a first liquid outlet of the heat exchanger and flows back to the first liquid storage tank along the first pipeline system, and the second cooling medium flows out of a second liquid outlet of the heat exchanger and flows back to the second liquid storage tank along the second pipeline system.
5. The cooling system according to claim 4, wherein the first piping system includes a first branch pipe, a second branch pipe, and a third branch pipe, one end of the first branch pipe communicates with the first reservoir, and the other end communicates with the first liquid inlet hole, the first driving element is provided at the first branch pipe; one end of the second branch pipe is communicated with the first liquid outlet hole, and the other end of the second branch pipe is communicated with the first liquid inlet of the heat exchanger; one end of the third branch pipe is communicated with the first liquid outlet of the heat exchanger, and the other end of the third branch pipe is communicated with the first liquid storage tank;
the second pipeline system comprises a fourth branch pipe and a fifth branch pipe, one end of the fourth branch pipe is communicated with the second liquid storage tank, the other end of the fourth branch pipe is communicated with a second liquid inlet of the heat exchanger, and the second driving element is arranged on the fourth branch pipe; one end of the fifth branch pipe is communicated with a second liquid outlet of the heat exchanger, and the other end of the fifth branch pipe is communicated with the second liquid storage tank.
6. The cooling system of claim 4, further comprising an air cooling device that dissipates heat from the second cooling medium of the second tank.
7. The cooling system, as set forth in claim 2, further comprising seals disposed between the first cable hole and the cable and between the second cable hole and the cable, respectively.
8. A charging pile, characterized in that, the charging pile includes the cooling system of any one of claims 1-7, and further includes a cable and a charging head, the cable supplies power to the charging head, the charging head supplies power to a product to be charged, and the cable passes through the inner cavity of the sleeve along the axial direction of the sleeve.
9. The charging pile according to claim 8, further comprising a multi-degree-of-freedom manipulator, wherein the charging head is disposed on the multi-degree-of-freedom manipulator, and the multi-degree-of-freedom manipulator drives the charging head to move.
10. The charging pile according to claim 9, wherein a positioning module is arranged on the charging head, and the positioning module detects and determines the position of a charging port of the product to be charged;
the positioning module is electrically connected with the control module of the multi-degree-of-freedom manipulator, and the positioning module can control the multi-degree-of-freedom manipulator to move so that the charging head is matched with a charging port of a product to be charged.
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| CN202110885906.6A CN113658752A (en) | 2021-08-03 | 2021-08-03 | Cooling system and fill electric pile |
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