WO2019184883A1 - Positive and negative liquid-cooling cable serial cooling structure of high-power charging pile - Google Patents
Positive and negative liquid-cooling cable serial cooling structure of high-power charging pile Download PDFInfo
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- WO2019184883A1 WO2019184883A1 PCT/CN2019/079564 CN2019079564W WO2019184883A1 WO 2019184883 A1 WO2019184883 A1 WO 2019184883A1 CN 2019079564 W CN2019079564 W CN 2019079564W WO 2019184883 A1 WO2019184883 A1 WO 2019184883A1
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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
- H01B7/36—Insulated conductors or cables characterised by their form with distinguishing or length marks
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/04—Pins or blades for co-operation with sockets
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
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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
Definitions
- One end of the soft wire is connected with a liquid cooling terminal of the charging gun, and the other end is connected with a liquid cooling cable electrode, wherein the liquid cooling cable electrode is provided with an electrode pipe connected to the coolant channel; and the liquid and cold wire of the positive electrode and the negative electrode are respectively
- a cooling cavity communicating with the coolant passage is disposed in the liquid charging terminals of the two charging guns, and the two cooling cavities are communicated through the insulating connecting tube assembly.
- the liquid cold terminal of the charging gun is shaft-shaped, one end is a closed plug end corresponding to the charging socket of the electric vehicle, and the other end is an opening corresponding to the soft wire of the high-power charging pile liquid cooling cable.
- a protruding positioning member for connecting with the charging gun body is provided in the middle of the outer diameter of the liquid cooling terminal of the charging gun, and the outer diameter of the liquid cooling terminal of the charging gun
- a protruding through hole communicating with the cooling cavity is disposed between the positioning member and the opening end of the opening, and the two through holes on the two liquid cooling cables of the positive electrode and the negative electrode are communicated through the insulating connecting pipe assembly.
- the cooling cavities of the liquid-cooling terminals of the two charging guns on the two liquid-cooled cables of the positive and negative electrodes are respectively equipped with a fluid separation body, and the cooling cavity is a cylindrical cavity.
- the fluid to be described is a circular shaft shape, and a notch sinking table and a sinking table are arranged on both sides of the outer cylindrical surface of the shaft and the axial plane of the shaft, and one of the axial end faces is provided with a connecting sinking groove, and the fluid dividing body has a connecting sinking groove.
- the cooling liquid can be: non-conductive liquid medium such as pure water, transformer oil, transformer silicone oil, fluorinated liquid. Since the positive electrode and the negative electrode are cooled in series, the coolant flows between the positive electrode and the negative electrode, and therefore, the coolant must be a non-conductive liquid medium. Pure water can be used in the normal temperature zone, and cooling oil can be used in the cold zone to prevent the cooling medium from freezing and ensure the normal operation of the cable in different zones.
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- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Insulated Conductors (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Details Of Indoor Wiring (AREA)
Abstract
A positive and negative liquid-cooling cable serial cooling structure of a high-power charging pile, comprising a liquid-cooling cable insulation outer cover, and a PE wire and a plurality of signal wires which are provided in the liquid-cooling cable insulation outer cover; a positive liquid-cooling cable and a negative liquid-cooling cable are also provided in the liquid-cooling cable insulation outer cover, each cable is comprised of a soft conductor wire and an insulation casing, the soft conducting wire is provided in the insulation casing, and the gap provided between the soft conducting wire and the insulation casing is a coolant passage; one end of the soft conducting wire is connected to a liquid-cooling terminal of a charging gun, the other end of the soft conducting wire is connected to a liquid-cooling cable electrode, and the liquid-cooling cable electrode is provided with an electrode pipe which is in communication with the coolant passage; and each of the liquid-cooling terminals of the two charging guns is provided with a cooling cavity which is in communication with the corresponding coolant passage, and the two cooling cavities are in communication with each other by means of an insulation connection pipe assembly. The present invention can safely carry a large current and avoid overheating of the cables during the charging operation.
Description
本发明涉及新能源电动汽车用大功率充电桩技术领域,具体涉及一种大功率充电桩的正负极液冷电缆串联冷却结构。The invention relates to the technical field of high-power charging piles for new energy electric vehicles, in particular to a series cooling structure of positive and negative liquid cooling cables of high-power charging piles.
新能源电动汽车因其没有尾气排放而得到迅猛发展,而燃油汽车必将逐渐退出历史舞台。随着燃油汽车的消失,与其相伴的加油站也将完成它的历史使命,取而代之的将是遍布世界各地的充电站,充电站的硬件设施是充电桩。New energy electric vehicles have been rapidly developed due to their lack of exhaust emissions, and fuel vehicles will gradually withdraw from the historical arena. With the disappearance of the fuel car, the accompanying gas station will also complete its historical mission. Instead, it will be a charging station all over the world. The charging station's hardware facilities are charging piles.
目前,用于电动汽车的充电站,其硬件设施基本都是中功率充电桩,直流电压750伏,输出电流小于250安培,以普通车型的电动公交车充电为例,充满全车电瓶至少需要三个小时。中功率充电桩的充电效率不高,当前正在研发的大功率充电桩,其技术参数:直流充电电压1000~1500V,输出电流500~600A;若使用大功率充电桩充电,以普通车型的电动公交车充电为例,充满全车电瓶只需要15分钟就够了,大功率充电桩充电效率高,是未来充电站的主流发展方向。At present, the charging station for electric vehicles is basically a medium-power charging pile with a DC voltage of 750 volts and an output current of less than 250 amps. Taking the electric bus charging of an ordinary model as an example, at least three batteries are required to fill the entire vehicle. Hours. The charging efficiency of the medium-power charging pile is not high. The high-power charging pile currently under development has technical parameters: DC charging voltage 1000-1500V, output current 500-600A; if using high-power charging pile charging, electric bus with ordinary models For example, car charging is sufficient. It takes only 15 minutes to fill the battery of the whole car. The charging efficiency of the high-power charging pile is high, which is the mainstream development direction of the charging station in the future.
显然,大功率充电桩电源与充电枪连接的电缆,该电缆需要能够安全地承载400~600安培的电缆。因为中功率充电桩输出电流小于250A,所使用的干式电缆的截面面积为70平方毫米,若要它承载400~600安培的电流,理论上干式电缆的截面面积需要达到100-150平方毫米才行。这样充电桩电源与充电枪连接的干式集成电缆的外径52-73毫米,外径这么大的电缆,不仅体积大,而且重量也大,这不 符合人体工程的使用要求。因此,大功率充电桩要配上一种外径小、重量轻、承载电流大,且具有自身冷却功能的专用电缆。Obviously, the high-power charging pile power supply is connected to the charging gun cable, which needs to be able to safely carry a cable of 400-600 amps. Because the output current of the medium power charging post is less than 250A, the dry cable used has a cross-sectional area of 70 square millimeters. If it is to carry a current of 400-600 amps, the theoretical cross-sectional area of the dry cable needs to reach 100-150 square millimeters. Only then. In this way, the dry integrated cable connected to the charging power supply and the charging gun has an outer diameter of 52-73 mm, and the cable having such a large outer diameter is not only bulky but also heavy, which is not in compliance with ergonomic requirements. Therefore, the high-power charging pile should be equipped with a special cable with small outer diameter, light weight, large carrying current and self-cooling function.
发明内容Summary of the invention
本发明的目的是提供一种大功率充电桩的正负极液冷电缆串联冷却结构,大功率充电桩的正负极液冷电缆串联冷却结构的外径小于40毫米,低于常规尺寸;电缆内的软体导线截面积小,重量轻,且承载电流高;尤其是该技术方案采用串联冷却方案,解决了大功率充电桩用电缆的过热问题。The object of the present invention is to provide a series cooling structure of a positive and negative liquid cooling cable for a high-power charging pile, and an outer diameter of a series cooling structure of a positive and negative liquid cooling cable of a high-power charging pile is less than 40 mm, which is lower than a conventional size; The inner soft conductor has a small cross-sectional area, light weight, and high carrying current; in particular, the technical solution adopts a series cooling scheme to solve the problem of overheating of the high-power charging pile cable.
为了进一步地公开本发明,本发明采用的技术方案为:In order to further disclose the present invention, the technical solution adopted by the present invention is:
一种大功率充电桩的正负极液冷电缆串联冷却结构,包括液冷电缆绝缘外被以及设置在液冷电缆绝缘外被内的若干根信号线,所述液冷电缆绝缘外被内还设置有正极和负极两根液冷线缆,每根液冷线缆均由软体导线和绝缘套管组成,软体导线设置在绝缘套管内,软体导线与绝缘套管之间设置的间隙为冷却液通道。A series cooling structure for a positive and negative liquid cooling cable of a high-power charging pile, comprising a liquid-cooled cable insulation outer cover and a plurality of signal wires disposed inside the liquid-cooled cable insulation, wherein the liquid-cooled cable is insulated inside There are two liquid-cooled cables, a positive electrode and a negative electrode. Each liquid-cooled cable is composed of a soft wire and an insulating sleeve. The soft wire is disposed in the insulating sleeve, and the gap between the soft wire and the insulating sleeve is a coolant. aisle.
所述软体导线的一端连接有充电枪液冷端子,另一端连接有液冷电缆电极,所述液冷电缆电极设有电极管道与冷却液通道连通;所述正极和负极两根液冷线缆上的两个充电枪液冷端子内均设有与冷却液通道连通的冷却空腔,两个冷却空腔通过绝缘连接管组件连通。One end of the soft wire is connected with a liquid cooling terminal of the charging gun, and the other end is connected with a liquid cooling cable electrode, wherein the liquid cooling cable electrode is provided with an electrode pipe connected to the coolant channel; and the liquid and cold wire of the positive electrode and the negative electrode are respectively A cooling cavity communicating with the coolant passage is disposed in the liquid charging terminals of the two charging guns, and the two cooling cavities are communicated through the insulating connecting tube assembly.
为了进一步地改进技术方案,所述软体导线包括软体铜绞线及防护网,软体铜绞线贯穿套嵌在防护网的内部,绝缘套管与防护网之间设置有环状的冷却液通道;所述软体铜绞线为多股绞合线芯,多股绞合线芯由多根小直径的镀锡铜单线绞合成小股线,多个小股线绞合成 一根导线;所述防护网为镀锡铜丝线编织成的管状网线。In order to further improve the technical solution, the soft conductor comprises a soft copper strand and a protective net, and the soft copper strand is embedded in the interior of the protective net, and an annular coolant passage is disposed between the insulating sleeve and the protective net; The soft copper stranded wire is a stranded strand core, and the stranded strand core is twisted into a small strand by a plurality of small diameter tinned copper single wires, and the plurality of small strands are twisted into one wire; the protection The net is a tubular wire mesh woven from tinned copper wire.
为了进一步地改进技术方案,所述充电枪液冷端子为轴状,一端为与电动汽车充电插座对应连接的闭口插头端,另一端为与大功率充电桩液冷电缆的软体导线对应连接的开口连接端,冷却空腔通过开口连接端与冷却液通道连通;在充电枪液冷端子的外径中部设有突出的用于与充电枪枪体连接的定位件,在充电枪液冷端子外径上、在定位件与开口连接端之间,设有与冷却空腔连通的外凸的贯通口,正极和负极两根液冷线缆上的两个贯通口通过绝缘连接管组件连通。In order to further improve the technical solution, the liquid cold terminal of the charging gun is shaft-shaped, one end is a closed plug end corresponding to the charging socket of the electric vehicle, and the other end is an opening corresponding to the soft wire of the high-power charging pile liquid cooling cable. a connecting end, the cooling cavity communicates with the coolant passage through the open connection end; a protruding positioning member for connecting with the charging gun body is provided in the middle of the outer diameter of the liquid cooling terminal of the charging gun, and the outer diameter of the liquid cooling terminal of the charging gun A protruding through hole communicating with the cooling cavity is disposed between the positioning member and the opening end of the opening, and the two through holes on the two liquid cooling cables of the positive electrode and the negative electrode are communicated through the insulating connecting pipe assembly.
为了进一步地改进技术方案,所述软体导线位于充电枪液冷端子侧的一端压接在冷却空腔的内壁上,所述绝缘套管位于充电枪液冷端子侧的一端套接在开口连接端的外圆柱面上,并通过卡箍箍紧。In order to further improve the technical solution, the soft wire is crimped on the inner wall of the cooling cavity on the liquid cooling terminal side of the charging gun, and the insulating sleeve is located at the end of the liquid cold terminal of the charging gun and is sleeved at the opening end. On the outer cylindrical surface, and tightened by the clamp.
为了进一步地改进技术方案,所述贯通口的外凸端上设有螺纹连接口,螺纹连接口内外分别设有内螺纹和外螺纹。In order to further improve the technical solution, a threaded connection port is arranged on the convex end of the through hole, and an internal thread and an external thread are respectively arranged inside and outside the threaded connection port.
为了进一步地改进技术方案,所述绝缘连接管组件包括绝缘导管、绝缘锁紧螺母、喇叭型螺母和密封圈,其绝缘导管为中空结构,该中空部分与充电枪液冷端子的冷却空腔连通,绝缘导管的两端端面上设置有环形槽,环形槽内设置有密封圈;绝缘导管的一端设有外螺纹,与其中一个充电枪液冷端子螺纹连接口的内螺纹螺接,并通过绝缘螺母锁紧;绝缘导管的另一端设有倒锥结构,通过喇叭型螺母的内螺纹与另一个充电枪液冷端子螺纹连接口的外螺纹螺接,喇叭型螺母的内锥面与绝缘导管的倒锥面压紧配合。In order to further improve the technical solution, the insulated connecting tube assembly comprises an insulating conduit, an insulating lock nut, a horn nut and a sealing ring, and the insulating conduit is a hollow structure, and the hollow portion is connected to a cooling cavity of the liquid cold terminal of the charging gun. An annular groove is arranged on both end faces of the insulating conduit, and a sealing ring is arranged in the annular groove; one end of the insulating conduit is provided with an external thread, and is screwed with the internal thread of the screw connection port of one of the charging guns, and is insulated The nut is locked; the other end of the insulated conduit is provided with an inverted cone structure, and the internal thread of the horn nut is screwed with the external thread of the screw connection port of the other liquid of the charging gun, and the inner tapered surface of the horn nut and the insulating conduit are The inverted cone is pressed tightly.
为了进一步地改进技术方案,所述贯通口内连通有一个弯管,弯 管位于冷却空腔内,且通向冷却空腔的底部。In order to further improve the technical solution, a through pipe is connected in the through hole, and the bent pipe is located in the cooling cavity and leads to the bottom of the cooling cavity.
为了进一步地改进技术方案,所述正极和负极两根液冷线缆上的两个充电枪液冷端子的冷却空腔内均安装有分流体,所述冷却空腔为圆柱形空腔,所述分流体为圆轴状,在轴的外圆柱面中间部位、轴平面两侧设有缺口沉台、沉台,在其中一轴端面设有连通沉槽,所述分流体有连通沉槽的一端插接在冷却空腔内,两个分流体的沉台相对设置,沉台与冷却空腔构成的半圆通道与绝缘连接管组件连通;缺口沉台与冷却空腔构成缺口通道,缺口通道与冷却液通道连通,且通过连通沉槽与半圆通道连通。In order to further improve the technical solution, the cooling cavities of the liquid-cooling terminals of the two charging guns on the two liquid-cooled cables of the positive and negative electrodes are respectively equipped with a fluid separation body, and the cooling cavity is a cylindrical cavity. The fluid to be described is a circular shaft shape, and a notch sinking table and a sinking table are arranged on both sides of the outer cylindrical surface of the shaft and the axial plane of the shaft, and one of the axial end faces is provided with a connecting sinking groove, and the fluid dividing body has a connecting sinking groove. One end is inserted into the cooling cavity, the two fluid-separating stages are oppositely arranged, and the semi-circular passage formed by the sinking table and the cooling cavity is in communication with the insulating connecting pipe assembly; the notch sunken table and the cooling cavity form a notch channel, the notch channel and The coolant passage is in communication and communicates with the semicircular passage through the connecting sink.
为了进一步地改进技术方案,所述液冷电缆电极包括电极管道,在电极管道的两端分别设有电极冷却液进出口和导线连接口;所述软体导线的另一端压接在电极管道的内管壁上,所述绝缘套管的端部套接在电极管道的外圆柱面上,并通过卡箍箍紧;所述冷却液通道通过电极管道与电极冷却液进出口连通,在电极冷却液进出口上连接有冷却液进出口快接接头。In order to further improve the technical solution, the liquid-cooled cable electrode includes an electrode conduit, and an electrode coolant inlet and outlet and a wire connection port are respectively disposed at two ends of the electrode pipe; and the other end of the soft wire is crimped into the electrode pipe. The end of the insulating sleeve is sleeved on the outer cylindrical surface of the electrode tube and is clamped by the clamp; the coolant passage is connected to the electrode coolant inlet and outlet through the electrode tube, and the electrode coolant is A quick connection for the coolant inlet and outlet is connected to the inlet and outlet.
为了进一步地改进技术方案,所述液冷电缆电极设有用于与充电桩建立电性连接的电极安装座。In order to further improve the technical solution, the liquid-cooled cable electrode is provided with an electrode mount for establishing an electrical connection with the charging post.
与现有技术相比,本发明的有益效果是:本发明所述的大功率充电桩的正负极液冷电缆串联冷却结构,冷却液由一根液冷线缆的液冷电缆电极进入,依次流经自身的软体导线、充电枪液冷端子,然后流到另一根电缆的充电枪液冷端子、软体导线、液冷电缆电极,最后回到冷却装置循环使用。循环流动的冷却液,可对大功率充电桩的正负极液冷电缆的液冷电缆电极,软体导线,充电枪液冷端子在充电过 程中冷却散热。Compared with the prior art, the beneficial effects of the present invention are: the positive and negative liquid cooling cables of the high-power charging pile according to the present invention are cooled in series, and the cooling liquid is entered by the liquid-cooled cable electrode of a liquid-cooled cable. It flows through its own soft wire, the liquid of the charging gun liquid, and then flows to the liquid cooling terminal of the charging gun of another cable, the soft wire, the liquid cooling cable electrode, and finally returns to the cooling device for recycling. The circulating cooling liquid can cool and cool the liquid-cooled cable electrode, the soft-wired wire and the liquid-cooled terminal of the charging gun of the positive and negative liquid cooling cables of the high-power charging pile during the charging process.
本发明的大功率充电桩的正负极液冷电缆串联冷却结构,每根软体导线的截面面积仅为35~60平方毫米,比中功率充电桩干式电缆的70平方毫米还要小,且整体电缆外径尺寸也仅为39毫米,与传统的干式集成电缆的外径一样,具有成本低、重量轻,易操作的特点。不仅如此,本发明还能够安全地承载600安培的电流,保障大功率充电使用,避免充电工作过程中电缆出现过热现象。The positive and negative liquid cooling cable of the high-power charging pile of the invention has a series cooling structure, and the cross-sectional area of each soft conductor is only 35-60 square millimeters, which is smaller than 70 square millimeters of the medium-power charging pile dry cable, and The overall cable outer diameter is only 39 mm, which is the same as the outer diameter of the traditional dry integrated cable. It has the characteristics of low cost, light weight and easy operation. Moreover, the present invention can safely carry a current of 600 amps, ensuring high-power charging use, and avoiding overheating of the cable during charging work.
图1为本发明的结构示意图。Figure 1 is a schematic view of the structure of the present invention.
图2为正极与负极串冷液冷线缆的剖面结构示意图。2 is a schematic cross-sectional structural view of a cold liquid cold cable of a positive electrode and a negative electrode.
图3为充电枪液冷端子的剖面结构示意图。3 is a schematic cross-sectional structural view of a liquid cold terminal of a charging gun.
图4为绝缘连接管组件的剖面结构示意图。4 is a schematic cross-sectional view of an insulated connecting tube assembly.
图5为液冷电缆电极的剖面结构示意图。Fig. 5 is a schematic cross-sectional view showing the electrode of the liquid-cooled cable.
图6为本发明的冷却液流向示意图。Figure 6 is a schematic view of the flow direction of the cooling liquid of the present invention.
图7为本发明在实施例2中,分流体的结构示意图。Fig. 7 is a schematic view showing the structure of a fluid separation body in the second embodiment of the present invention.
图8为本发明在实施例2中,位于正极和负极充电枪液冷端子侧的剖面结构示意图。Fig. 8 is a cross-sectional structural view showing the liquid cold terminal side of the positive electrode and the negative electrode charging gun in the second embodiment of the present invention.
图中:1、液冷电缆绝缘外被;2、软体导线;2.1、冷却液通道;2.2、软体铜绞线;2.3、防护网;3、绝缘套管;4、液冷电缆电极;4.1、电极管道;4.2、电极冷却液进出口;4.3、导线连接口;4.4、电极安装座;5、充电枪液冷端子;5.1、冷却空腔;5.2、闭口插头端;5.3、开口连接端;5.4、定位件;5.5、贯通口;5.6、弯管;5.7、螺纹连接口;6、分流体;6.1、缺口沉台;6.2、沉台;6.3、连通沉 槽;6.4、半圆通道;6.5、缺口通道;7、冷却液进出口快接接头;8、聚四氟乙烯绝缘垫圈;9、绝缘连接管组件;9.1、绝缘导管;9.2、绝缘锁紧螺母;9.3、密封圈;9.4、喇叭型螺母;9.5、环形槽;10、信号线;11、卡箍。In the figure: 1, liquid-cooled cable insulation outer; 2, soft wire; 2.1, coolant channel; 2.2, soft copper strand; 2.3, protective net; 3, insulating sleeve; 4, liquid-cooled cable electrode; Electrode pipe; 4.2, electrode coolant inlet and outlet; 4.3, wire connection port; 4.4, electrode mount; 5, charging gun liquid cold terminal; 5.1, cooling cavity; 5.2, closed plug end; 5.3, open connection end; Positioning member; 5.5, through hole; 5.6, elbow; 5.7, threaded connection; 6, splitting fluid; 6.1, notch sinking; 6.2, sinking; 6.3, connecting sinking groove; 6.4, semicircular channel; Channel; 7, coolant inlet and outlet quick connector; 8, PTFE insulated gasket; 9, insulated connecting tube assembly; 9.1, insulated conduit; 9.2, insulating lock nut; 9.3, sealing ring; 9.4, flare nut ; 9.5, annular groove; 10, signal line; 11, clamp.
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
实施例1:一种大功率充电桩的正负极液冷电缆串联冷却结构,如图1-2所示,包括液冷电缆绝缘外被1和设置在液冷电缆绝缘外被1内的若干根信号线10,所述液冷电缆绝缘外被1内还设置有正极和负极两根液冷线缆,每根液冷线缆由软体导线2和绝缘套管3组成,正极液冷线缆的绝缘套管3为红色,负极液冷线缆的绝缘套管3为黑色,软体导线2设置在绝缘套管3内,软体导线2与绝缘套管3之间设置的间隙是冷却液通道2.1。Embodiment 1: A series cooling structure of a positive and negative liquid cooling cable of a high-power charging pile, as shown in FIG. 1-2, including a liquid-cooled cable insulation outer cover 1 and a plurality of liquid-cooled cable insulation outer 1 The root signal line 10, the liquid-cooled cable insulation outside is also provided with two liquid-cooled cables of a positive electrode and a negative electrode, each liquid-cooled cable is composed of a soft wire 2 and an insulating sleeve 3, and a positive liquid cooling cable The insulating sleeve 3 is red, the insulating sleeve 3 of the negative liquid cooling cable is black, the soft conductor 2 is disposed in the insulating sleeve 3, and the gap between the soft conductor 2 and the insulating sleeve 3 is the coolant passage 2.1. .
所述软体导线2的一端连接有充电枪液冷端子5,另一端连接有液冷电缆电极4,建立从液冷电缆电极4到充电枪液冷端子5的电性连接。所述软体导线2包括软体铜绞线2.2及防护网2.3,软体铜绞线2.2贯穿套嵌在防护网2.3的内部,绝缘套管3与防护网2.3之间设置有环状的冷却液通道2.1;所述软体铜绞线2.2为多股绞合线 芯,多股绞合线芯由多根小直径的镀锡铜单线绞合成小股线,多个小股线绞合成一根导线;所述防护网2.3为镀锡铜丝线编织成的管状网线。采用多股导线绞合线作为线芯能使电缆的柔软性大大增加,而且可使弯曲时的曲度不集中在一处,而是分布在每股导线上,每股导线的直径越小,弯曲时产生的弯曲应力也就越小,因而在允许弯曲半径情况下不会发生塑性变形,具有稳定性好、可靠性强、寿命长的特点。本发明中,由于软体铜绞线2.2及防护网2.3都为绞合编织的网状导线,因而冷却液可以渗透到导线内的空隙中,最大程度地与导线表面进行接触散热。One end of the flexible conductor 2 is connected with a liquid cooling terminal 5 of the charging gun, and the other end is connected with a liquid-cooled cable electrode 4 to establish an electrical connection from the liquid-cooled cable electrode 4 to the liquid-cooling terminal 5 of the charging gun. The soft conductor 2 includes a soft copper strand 2.2 and a protective net 2.3. The soft copper strand 2.2 is embedded in the interior of the protective net 2.3, and an annular coolant channel is disposed between the insulating sleeve 3 and the protective net 2.3. The soft copper strand 2.2 is a stranded strand core, and the stranded strand core is twisted into a small strand by a plurality of small diameter tinned copper single wires, and a plurality of small strands are twisted into one wire; The protective net 2.3 is a tubular mesh wire woven from tinned copper wire. The use of stranded wire strands as the core can greatly increase the flexibility of the cable, and the curvature during bending can be concentrated in one place, but distributed on each strand of wire, the smaller the diameter of each strand of wire, The bending stress generated during bending is smaller, so that plastic deformation does not occur under the allowable bending radius, and the characteristics are good stability, high reliability, and long life. In the present invention, since the soft copper strand 2.2 and the protective net 2.3 are both twisted and woven mesh wires, the coolant can penetrate into the gaps in the wires to maximize contact with the wire surface to dissipate heat.
如图3所示,所述充电枪液冷端子5为轴状,一端为与电动汽车充电插座对应连接的闭口插头端5.2,另一端为与大功率充电桩液冷电缆的软体导线2对应连接的开口连接端5.3,冷却空腔5.1通过开口连接端5.3与冷却液通道2.1连通;在充电枪液冷端子5的外径中部设有用于与充电枪枪体连接的定位件5.4,在充电枪液冷端子5外径上、在密封定位法兰5.4与开口连接端5.3之间设有与冷却空腔5.1连通的外凸的贯通口5.5,正极和负极两根液冷线缆上的两个贯通口(5.5)通过绝缘连接管组件(9)连通。为了方便贯通口5.5与绝缘连接管组件9的连接,正负极液冷端子的贯通口5.5分别设有内螺纹和外螺纹。As shown in FIG. 3, the liquid cold terminal 5 of the charging gun is shaft-shaped, one end is a closed plug end 5.2 corresponding to the electric vehicle charging socket, and the other end is connected with the soft wire 2 of the high-power charging pile liquid cooling cable. The opening end 5.3, the cooling cavity 5.1 communicates with the coolant channel 2.1 through the opening connection end 5.3; a positioning member 5.4 for connecting to the charging gun body is provided in the middle of the outer diameter of the charging gun liquid cooling terminal 5, in the charging gun On the outer diameter of the liquid-cooled terminal 5, between the seal positioning flange 5.4 and the open connection end 5.3, a convex through-port 5.5 communicating with the cooling cavity 5.1 is provided, and two of the positive and negative liquid-cooled cables are provided. The through port (5.5) is connected through the insulated connecting tube assembly (9). In order to facilitate the connection of the through port 5.5 and the insulated connecting tube assembly 9, the through holes 5.5 of the positive and negative liquid cooling terminals are respectively provided with internal threads and external threads.
所述软体导线2位于充电枪液冷端子5侧的一端压接在冷却空腔5.1的内壁上,建立软体导线2与充电枪液冷端子5之间的电性连接。所述绝缘套管3位于充电枪液冷端子5侧的一端套接在开口连接端 5.3的外圆柱面上,并通过卡箍11箍紧。为了增强密封性,在绝缘套管3端部与充电枪液冷端子5之间设置有聚四氟乙烯绝缘垫圈8。The soft conductor 2 is crimped on the inner wall of the cooling cavity 5.1 at one end of the liquid cold terminal 5 of the charging gun to establish an electrical connection between the soft conductor 2 and the liquid cold terminal 5 of the charging gun. One end of the insulating sleeve 3 on the side of the liquid-cooling terminal 5 of the charging gun is sleeved on the outer cylindrical surface of the open connection end 5.3, and is hooped by the clamp 11. In order to enhance the sealing property, a Teflon insulating gasket 8 is disposed between the end of the insulating sleeve 3 and the liquid-cooling terminal 5 of the charging gun.
闭口插头端5.2作为与电动汽车充电插座接触导电的部位,通常会因接触不良而产生大量的热,为了对充电枪液冷端子5的闭口插头端5.2进行冷却,冷却空腔5.1延伸至闭口插头端5.2内部,并在贯通口5.5内连通有一个弯管5.6,弯管5.6位于冷却空腔5.1内,且通向冷却空腔5.1的闭口插头端5.2。冷却空腔5.1的闭口插头端5.2通过弯管5.6与绝缘连接管组件9、冷却液通道2.1连通。这样,冷却液就能够在闭口插头端5.2内部的冷却空腔5.1中进行流通散热,因为不存在流通死区,因此,可以较好地解决闭口插头端5.2的过热问题。The closed plug end 5.2 acts as a conductive part in contact with the charging socket of the electric vehicle, and usually generates a large amount of heat due to poor contact. In order to cool the closed plug end 5.2 of the liquid cold terminal 5 of the charging gun, the cooling cavity 5.1 extends to the closed plug. Inside the end 5.2, an elbow 5.6 is connected in the through opening 5.5. The elbow 5.6 is located in the cooling cavity 5.1 and leads to the closed plug end 5.2 of the cooling cavity 5.1. The closed plug end 5.2 of the cooling cavity 5.1 communicates with the insulated connecting tube assembly 9 and the coolant channel 2.1 via a bend 5.6. In this way, the coolant can be circulated and dissipated in the cooling cavity 5.1 inside the closed plug end 5.2, since there is no flow dead zone, so that the overheating problem of the closed plug end 5.2 can be better solved.
如图4所示,所述绝缘连接管组件9包括绝缘导管9.1、绝缘锁紧螺母9.2、喇叭型螺母9.4和密封圈9.3,其绝缘导管9.1为中空结构,该中空部分与充电枪液冷端子5的冷却空腔5.1连通,绝缘导管9.1的两端端面上设置有环形槽9.5,环形槽9.5内设置有密封圈9.3;绝缘导管9.1的一端设有外螺纹,与其中一个充电枪液冷端子5螺纹连接口5.7的内螺纹螺接,并通过绝缘螺母9.2锁紧;绝缘导管9.1的另一端设有倒锥结构,通过喇叭型螺母9.4的内螺纹与另一个充电枪液冷端子5螺纹连接口5.7的外螺纹螺接,喇叭型螺母9.4的内锥面与绝缘导管9.1的倒锥面压紧配合,形成密封结构。As shown in FIG. 4, the insulated connecting tube assembly 9 comprises an insulating conduit 9.1, an insulating lock nut 9.2, a horn nut 9.4 and a sealing ring 9.3, and the insulating conduit 9.1 is a hollow structure, and the hollow portion and the charging gun liquid-cooled terminal 5, the cooling cavity 5.1 is connected, the end of the insulating conduit 9.1 is provided with an annular groove 9.5, the annular groove 9.5 is provided with a sealing ring 9.3; one end of the insulating conduit 9.1 is provided with an external thread, and one of the charging gun liquid cooling terminal 5 The internal thread of the threaded connection port 5.7 is screwed and locked by the insulating nut 9.2; the other end of the insulating tube 9.1 is provided with an inverted cone structure, and the internal thread of the horn nut 9.4 is screwed to the liquid cooling terminal 5 of the other charging gun. The external thread of the port 5.7 is screwed, and the inner tapered surface of the horn nut 9.4 is press-fitted with the inverted tapered surface of the insulating conduit 9.1 to form a sealed structure.
如图5所示,所述液冷电缆电极4包括电极管道4.1,在电极管道4.1的两端分别设有电极冷却液进出口4.2和导线连接口4.3;软 体导线2的另一端压接在电极管道4.1的内管壁上,建立液冷电缆电极4与软体导线2之间的电性连接。所述绝缘套管3的端部套接在电极管道4.1的外圆柱面上,并通过卡箍11箍紧;所述冷却液通道2.1通过电极管道4.1与电极冷却液进出口4.2连通。为了增强密封性,在绝缘套管3端部与液冷电缆电极4之间设置有聚四氟乙烯绝缘垫圈8。As shown in FIG. 5, the liquid-cooled cable electrode 4 includes an electrode conduit 4.1, and an electrode coolant inlet and outlet 4.2 and a wire connection port 4.3 are respectively disposed at two ends of the electrode pipe 4.1; the other end of the soft wire 2 is crimped to the electrode. On the inner tube wall of the pipe 4.1, an electrical connection between the liquid-cooled cable electrode 4 and the soft conductor 2 is established. The end of the insulating sleeve 3 is sleeved on the outer cylindrical surface of the electrode conduit 4.1 and is clamped by the clamp 11; the coolant passage 2.1 communicates with the electrode coolant inlet and outlet 4.2 through the electrode conduit 4.1. In order to enhance the sealing property, a Teflon insulating gasket 8 is disposed between the end of the insulating sleeve 3 and the liquid-cooled cable electrode 4.
为了便于电极冷却液进出口4.2与外部冷却***连接,在电极冷却液进出口4.2上连接有冷却液进出口快接接头7。In order to facilitate the connection of the electrode coolant inlet and outlet 4.2 to the external cooling system, a coolant inlet and outlet quick connector 7 is connected to the electrode coolant inlet and outlet 4.2.
为了便于液冷电缆电极4与充电桩的电性连接,所述液冷电缆电极4上设有用于与充电桩建立电性连接的电极安装座4.4。In order to facilitate the electrical connection between the liquid-cooled cable electrode 4 and the charging post, the liquid-cooled cable electrode 4 is provided with an electrode mount 4.4 for establishing an electrical connection with the charging post.
工作原理:冷却液可以是:纯净水、变压器油、变压器硅油、氟化液等非导电液体介质。由于是正极与负极的串联冷却,冷却液在正极与负极之间是流通的,因此,冷却液必须为非导电液体介质。常温地带可采用纯净水,寒冷地带采用冷却油,防止冷却介质冻结,保证电缆在不同地带的正常工作。Working principle: The cooling liquid can be: non-conductive liquid medium such as pure water, transformer oil, transformer silicone oil, fluorinated liquid. Since the positive electrode and the negative electrode are cooled in series, the coolant flows between the positive electrode and the negative electrode, and therefore, the coolant must be a non-conductive liquid medium. Pure water can be used in the normal temperature zone, and cooling oil can be used in the cold zone to prevent the cooling medium from freezing and ensure the normal operation of the cable in different zones.
如图6所示,冷却装置内的冷却液由正极液冷线缆液冷电缆电极4的冷却液进出口快接接头7进入电极管道4.1,再通过冷却液通道2.1进入正极液冷线缆充电枪液冷端子5内的冷却空腔5.1,在冷却空腔(5.1)的闭口插头端5.2通过弯管5.6流入绝缘连接管组件9;在绝缘连接管组件9内的冷却液通过负极液冷线缆充电枪液冷端子5内的弯管5.6进入负极液冷线缆的冷却空腔5.1,并通过负极液冷线缆的冷却液通道2.1从负极液冷线缆的液冷电缆电极4流出,回到冷却装置,从而形成冷却液的循环。冷却液在不间断地循环流动过程中,对软体导线2、液冷电缆电极4以及充电枪液冷端子5进行冷 却,因而大功率充电桩的正负极串联冷却液冷电缆,能够安全地承载400-600安培的工作电流。As shown in Fig. 6, the cooling liquid in the cooling device enters the electrode conduit 4.1 from the coolant inlet and outlet quick connector 7 of the positive liquid cooling cable liquid cooling cable electrode 4, and then enters the positive liquid cooling cable through the coolant channel 2.1. The cooling cavity 5.1 in the gun fluid cold terminal 5 flows into the insulated connecting pipe assembly 9 through the elbow 5.6 at the closed plug end 5.2 of the cooling cavity (5.1); the coolant in the insulated connecting pipe assembly 9 passes through the negative liquid cooling line The elbow 5.6 in the liquid-cooling terminal 5 of the cable charging gun enters the cooling cavity 5.1 of the negative liquid cooling cable, and flows out from the liquid-cooled cable electrode 4 of the negative liquid cooling cable through the cooling liquid passage 2.1 of the negative liquid cooling cable. Returning to the cooling device to form a circulation of the coolant. During the uninterrupted circulation of the coolant, the soft conductor 2, the liquid-cooled cable electrode 4, and the liquid-cooling terminal 5 of the charging gun are cooled, so that the positive and negative serial coolant cooling cables of the high-power charging pile can be safely carried. 400-600 amps of operating current.
实施例2:如实施例1中所述的一种大功率充电桩的正负极液冷电缆串联冷却结构,与实施例1不同的技术特征为:Embodiment 2: The positive and negative liquid cooling cable series cooling structure of a high-power charging pile as described in Embodiment 1 is different from Embodiment 1 in the following technical features:
如图7-8所示,所述大功率充电桩的正负极串联冷却液冷电缆上的两个充电枪液冷端子5,其冷却空腔5.1内均安装有分流体6,所述冷却空腔5.1为圆柱形空腔,所述分流体6为轴状,在轴的外圆柱面中间部位、轴两侧对称设置有缺口沉台6.1、沉台6.2,在其中一轴端面设有连通沉槽6.3,所述分流体6有连通沉槽6.3的一端插接在冷却空腔5.1内,正负极液冷端子的两个分流体6的沉台6.2相对设置,沉台6.2与冷却空腔5.1构成的半圆通道6.4与绝缘连接管组件9连通;缺口沉台6.1与冷却空腔5.1构成缺口通道6.6,缺口通道6.5与冷却液通道2.1连通,且通过连通沉槽6.3与半圆通道6.5连通。As shown in FIG. 7-8, the two charging gun liquid-cooling terminals 5 on the positive and negative series cooling liquid cooling cables of the high-power charging pile have a fluid dividing body 6 installed in the cooling cavity 5.1, and the cooling is performed. The cavity 5.1 is a cylindrical cavity, and the fluid dividing body 6 is axially shaped. A notch sinking 6.1 and a sinking table 6.2 are symmetrically disposed at an intermediate portion of the outer cylindrical surface of the shaft and on both sides of the shaft, and a shaft end surface is provided with communication. The sinker 6.3, the split fluid 6 has one end connected to the sinker 6.3 inserted in the cooling cavity 5.1, and the countersinks 6.2 of the two partial fluids 6 of the positive and negative liquid cooling terminals are oppositely arranged, the sinking table 6.2 and the cooling air are The semicircular passage 6.4 formed by the cavity 5.1 communicates with the insulated connecting pipe assembly 9; the notch sunken table 6.1 and the cooling cavity 5.1 form a notch passage 6.6, the notch passage 6.5 communicates with the coolant passage 2.1, and communicates with the semicircular passage 6.5 through the communicating sinking groove 6.3 .
冷却液从正极充电枪液冷端子5的冷却液通道2.1流入直流冷却空腔5.1内,经缺口通道6.5、半圆通道6.4、绝缘连接管组件9,进入负极充电枪液冷端子5的半圆通道6.4内,再经缺口通道6.5,流到负极充电枪液冷端子5的冷却空腔5.1内,形成冷却冷却液在正极和负极充电枪液冷端子5内的流动通道。这样,同样可以实现冷却液就能够在闭口插头端5.2内部的冷却空腔5.1中进行流通散热,因为不存在流通死区,所以,同样可以较好地解决闭口插头端5.2的过热问题。The coolant flows into the DC cooling cavity 5.1 from the coolant passage 2.1 of the liquid charging terminal 5 of the positive charging gun, and enters the semicircular passage 6.4 of the liquid cooling terminal 5 of the negative charging gun via the notch passage 6.5, the semicircular passage 6.4, and the insulated connecting pipe assembly 9. Then, through the notch passage 6.5, it flows into the cooling cavity 5.1 of the liquid-cooling terminal 5 of the negative-electrode charging gun to form a flow passage for cooling the cooling liquid in the liquid-cooling terminal 5 of the positive electrode and the negative electrode charging gun. In this way, it is also possible to realize that the coolant can be dissipated and dissipated in the cooling cavity 5.1 inside the closed plug end 5.2. Since there is no circulation dead zone, the overheating problem of the closed plug end 5.2 can be better solved.
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附 权利要求及其等同物限定。While the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art The scope of the invention is defined by the appended claims and their equivalents.
Claims (10)
- 一种大功率充电桩的正负极液冷电缆串联冷却结构,包括液冷电缆绝缘外被(1)以及设置在液冷电缆绝缘外被(1)内的若干根信号线(10),其特征是:所述液冷电缆绝缘外被(1)内还设置有正极和负极两根液冷线缆,每根液冷线缆均由软体导线(2)和绝缘套管(3)组成,软体导线(2)设置在绝缘套管(3)内,软体导线(2)与绝缘套管(3)之间设置的间隙为冷却液通道(2.1);A series cooling structure of a positive and negative liquid cooling cable for a high-power charging pile, comprising a liquid-cooled cable insulation jacket (1) and a plurality of signal wires (10) disposed in the insulation of the liquid-cooled cable (1), The utility model is characterized in that: the liquid-cooled cable insulation outer cover (1) is further provided with two liquid-cooled cables of a positive electrode and a negative electrode, and each liquid-cooled cable is composed of a soft wire (2) and an insulating sleeve (3). The soft wire (2) is disposed in the insulating sleeve (3), and the gap between the soft wire (2) and the insulating sleeve (3) is a coolant channel (2.1);所述软体导线(2)的一端连接有充电枪液冷端子(5),另一端连接有液冷电缆电极(4),所述液冷电缆电极(4)设有电极管道(4.1)与冷却液通道(2.1)连通;所述正极和负极两根液冷线缆上的两个充电枪液冷端子(5)内均设有与冷却液通道(2.1)连通的冷却空腔(5.1),两个冷却空腔(5.1)通过绝缘连接管组件(9)连通。One end of the soft wire (2) is connected with a liquid cooling terminal (5) of the charging gun, and the other end is connected with a liquid cooling cable electrode (4), and the liquid cooling cable electrode (4) is provided with an electrode pipe (4.1) and cooling. The liquid passage (2.1) is connected; the two charging gun liquid-cooling terminals (5) on the two liquid-cooled cables of the positive and negative electrodes are provided with a cooling cavity (5.1) communicating with the coolant passage (2.1), The two cooling cavities (5.1) are connected by an insulated connecting tube assembly (9).
- 如权利要求1所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述软体导线(2)包括软体铜绞线(2.2)及防护网(2.3),软体铜绞线(2.2)贯穿套嵌在防护网(2.3)的内部,绝缘套管(3)与防护网(2.3)之间设置有环状的冷却液通道(2.1);所述软体铜绞线(2.2)为多股绞合线芯,多股绞合线芯由多根小直径的镀锡铜单线绞合成小股线,多个小股线绞合成一根导线;所述防护网(2.3)为镀锡铜丝线编织成的管状网线。The tandem cooling structure for a positive and negative liquid cooling cable of a high-power charging pile according to claim 1, wherein the soft conductor (2) comprises a soft copper strand (2.2) and a protective net (2.3), and the soft copper The stranded wire (2.2) is embedded in the interior of the protective net (2.3), and an annular coolant channel (2.1) is disposed between the insulating sleeve (3) and the protective net (2.3); the soft copper strand ( 2.2) is a stranded strand core, the stranded strand core is twisted into a small strand by a plurality of small-diameter tinned copper single wires, and a plurality of small strands are twisted into a single strand; the protective net (2.3) A tubular wire mesh woven into a tinned copper wire.
- 如权利要求1所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述充电枪液冷端子(5)为轴状,一端为与电动汽车充电插座对应连接的闭口插头端(5.2),另一端为与大功率 充电桩液冷电缆的软体导线(2)对应连接的开口连接端(5.3),冷却空腔(5.1)通过开口连接端(5.3)与冷却液通道(2.1)连通;在充电枪液冷端子(5)的外径中部设有突出的用于与充电枪枪体连接的定位件(5.4),在充电枪液冷端子(5)外径上、在定位件(5.4)与开口连接端(5.3)之间设有与冷却空腔(5.1)连通外凸的贯通口(5.5),正极和负极两根液冷线缆上的两个贯通口(5.5)通过绝缘连接管组件(9)连通。The positive and negative liquid cooling cable series cooling structure of the high-power charging pile according to claim 1, wherein the liquid cold terminal (5) of the charging gun is shaft-shaped, and one end is connected with an electric vehicle charging socket. The closed plug end (5.2), the other end is the open connection end (5.3) corresponding to the soft conductor (2) of the high-power charging pile liquid cooling cable, and the cooling cavity (5.1) passes through the open connection end (5.3) and the coolant The passage (2.1) is connected; a protruding positioning member (5.4) for connecting with the charging gun body is provided in the middle of the outer diameter of the liquid cooling terminal (5) of the charging gun, on the outer diameter of the liquid cooling terminal (5) of the charging gun Between the positioning member (5.4) and the open connection end (5.3), there is a through hole (5.5) which communicates with the cooling cavity (5.1), and two through holes on the liquid and cold cables of the positive electrode and the negative electrode. (5.5) Connected through the insulated connecting tube assembly (9).
- 如权利要求3所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述软体导线(2)位于充电枪液冷端子(5)侧的一端压接在冷却空腔(5.1)的内壁上,所述绝缘套管(3)位于充电枪液冷端子(5)侧的一端套接在开口连接端(5.3)的外圆柱面上,并通过卡箍(11)箍紧。The positive and negative liquid cooling cable series cooling structure of the high-power charging pile according to claim 3, wherein the soft wire (2) is located at one end of the liquid cold terminal (5) of the charging gun and is crimped to the cooling air. On the inner wall of the cavity (5.1), the end of the insulating sleeve (3) on the liquid-cooling terminal (5) side of the charging gun is sleeved on the outer cylindrical surface of the open connection end (5.3), and passes through the clamp (11). Hoop tight.
- 如权利要求3所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述贯通口(5.5)的外凸端上设有螺纹连接口(5.7),螺纹连接口(5.7)内外分别设有内螺纹和外螺纹。The positive and negative liquid cooling cable series cooling structure of the high-power charging pile according to claim 3, characterized in that: the through-port (5.5) has a threaded connection port (5.7) on the convex end, and the threaded connection port (5.7) Internal and external threads are provided inside and outside.
- 如权利要求5所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述绝缘连接管组件(9)包括绝缘导管(9.1)、绝缘锁紧螺母(9.2)、喇叭型螺母(9.4)和密封圈(9.3),其绝缘导管(9.1)为中空结构,该中空部分与充电枪液冷端子(5)的冷却空腔(5.1)连通,绝缘导管(9.1)的两端端面上设置有环形槽(9.5),环形槽(9.5)内设置有密封圈(9.3);绝缘导管(9.1)的一端设有外螺纹,与其中一个充电枪液冷端子(5)螺 纹连接口(5.7)的内螺纹螺接,并通过绝缘螺母(9.2)锁紧;绝缘导管(9.1)的另一端设有倒锥结构,通过喇叭型螺母(9.4)的内螺纹与另一个充电枪液冷端子(5)螺纹连接口(5.7)的外螺纹螺接,喇叭型螺母(9.4)的内锥面与绝缘导管(9.1)的倒锥面压紧配合。The tandem cooling structure for a positive and negative liquid cooling cable of a high-power charging pile according to claim 5, wherein the insulated connecting tube assembly (9) comprises an insulating conduit (9.1), an insulating lock nut (9.2), The horn nut (9.4) and the sealing ring (9.3) have an insulated conduit (9.1) which is a hollow structure which communicates with the cooling cavity (5.1) of the liquid-cooled terminal (5) of the charging gun, and the insulating conduit (9.1) An annular groove (9.5) is arranged on the end faces of both ends, and a sealing ring (9.3) is arranged in the annular groove (9.5); one end of the insulating conduit (9.1) is provided with an external thread, and one of the charging guns is liquid-cooled (5) threaded The internal thread of the joint (5.7) is screwed and locked by an insulating nut (9.2); the other end of the insulated conduit (9.1) is provided with an inverted cone structure, through the internal thread of the horn nut (9.4) and another charging gun The external thread of the screw connection (5) of the liquid-cooled terminal (5) is screwed, and the inner tapered surface of the horn nut (9.4) is pressed tightly with the inverted tapered surface of the insulated conduit (9.1).
- 如权利要求3-6任一权利所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述贯通口(5.5)内连通有一个弯管(5.6),弯管(5.6)位于冷却空腔(5.1)内,且通向冷却空腔(5.1)的底部。The tandem cooling structure for a positive and negative liquid cooling cable of a high-power charging pile according to any one of claims 3-6, characterized in that: the through hole (5.5) is connected with an elbow (5.6), and the elbow is connected (5.6) Located in the cooling cavity (5.1) and leading to the bottom of the cooling cavity (5.1).
- 如权利要求3-6任一权利所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述正极和负极两根液冷线缆上的两个充电枪液冷端子(5)的冷却空腔(5.1)内均安装有分流体(6),所述冷却空腔(5.1)为圆柱形空腔,所述分流体(6)为圆轴状,在轴的外圆柱面中间部位、轴平面两侧设有缺口沉台(6.1)、沉台(6.2),在其中一轴端面设有连通沉槽(6.3),所述分流体(6)有连通沉槽(6.3)的一端插接在冷却空腔(5.1)内,两个分流体(6)的沉台(6.2)相对设置,沉台(6.2)与冷却空腔(5.1)构成的半圆通道(6.4)与绝缘连接管组件(9)连通;缺口沉台(6.1)与冷却空腔(5.1)构成缺口通道(6.6),缺口通道(6.5)与冷却液通道(2.1)连通,且通过连通沉槽(6.3)与半圆通道(6.5)连通。A series cooling structure for a positive and negative liquid cooling cable of a high-power charging pile according to any one of claims 3-6, characterized in that: two charging guns on the two liquid-cooled cables of the positive and negative electrodes are liquid-cooled A fluid dividing body (6) is mounted in the cooling cavity (5.1) of the terminal (5), the cooling cavity (5.1) is a cylindrical cavity, and the fluid dividing body (6) is a circular shaft shape on the shaft The middle part of the outer cylindrical surface and the plane of the shaft plane are provided with a notch sinking platform (6.1) and a sinking table (6.2), and a shaft end surface is provided with a connecting sinking groove (6.3), and the fluid dividing body (6) has a connecting sinking groove. One end of (6.3) is inserted into the cooling cavity (5.1), the two stages (6.2) of the partial fluid (6) are oppositely arranged, and the semicircular passage formed by the sinking table (6.2) and the cooling cavity (5.1) (6.4) ) communicating with the insulated connecting pipe assembly (9); the notch sinking table (6.1) and the cooling cavity (5.1) forming a notch passage (6.6), the notch passage (6.5) is in communication with the coolant passage (2.1), and the through-groove is connected (6.3) Connected to the semicircular channel (6.5).
- 如权利要求1所述的大功率充电桩的正负极液冷电缆串联冷却结 构,其特征是:所述液冷电缆电极(4)包括电极管道(4.1),在电极管道(4.1)的两端分别设有电极冷却液进出口(4.2)和导线连接口(4.3);所述软体导线(2)的另一端压接在电极管道(4.1)的内管壁上,所述绝缘套管(3)的端部套接在电极管道(4.1)的外圆柱面上,并通过卡箍(11)箍紧;所述冷却液通道(2.1)通过电极管道(4.1)与电极冷却液进出口(4.2)连通,在电极冷却液进出口(4.2)上连接有冷却液进出口快接接头(7)。The positive and negative liquid cooling cable series cooling structure of the high-power charging pile according to claim 1, wherein the liquid-cooled cable electrode (4) comprises an electrode pipe (4.1), and two of the electrode pipes (4.1) The ends are respectively provided with an electrode coolant inlet and outlet (4.2) and a wire connection port (4.3); the other end of the soft wire (2) is crimped onto the inner pipe wall of the electrode pipe (4.1), the insulating sleeve ( The end of 3) is sleeved on the outer cylindrical surface of the electrode tube (4.1) and clamped by the clamp (11); the coolant channel (2.1) passes through the electrode tube (4.1) and the electrode coolant inlet and outlet ( 4.2) Connect, connect the coolant inlet and outlet quick connector (7) to the electrode coolant inlet and outlet (4.2).
- 如权利要求1所述的大功率充电桩的正负极液冷电缆串联冷却结构,其特征是:所述液冷电缆电极(4)设有用于与充电桩建立电性连接的电极安装座(4.4)。The positive and negative liquid cooling cable series cooling structure of the high-power charging pile according to claim 1, wherein the liquid-cooled cable electrode (4) is provided with an electrode mounting seat for establishing an electrical connection with the charging post ( 4.4).
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CN201920199985.3 | 2019-02-11 | ||
CN201920199985.3U CN209566802U (en) | 2019-02-11 | 2019-02-11 | A kind of cooling structure of high-power charging gun DC+ and DC- string cold end |
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CN116053081A (en) * | 2023-04-03 | 2023-05-02 | 武汉嘉晨电子技术有限公司 | Contactor thermal management integrated module of high-voltage control box of electric vehicle |
CN116053081B (en) * | 2023-04-03 | 2023-06-13 | 武汉嘉晨电子技术有限公司 | Contactor thermal management integrated module of high-voltage control box of electric vehicle |
CN117601679B (en) * | 2024-01-23 | 2024-03-26 | 江阴市富仁高科股份有限公司 | Circuit cooling structure of charging pile |
CN117601679A (en) * | 2024-01-23 | 2024-02-27 | 江阴市富仁高科股份有限公司 | Circuit cooling structure of charging pile |
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JP7075144B2 (en) | 2022-05-25 |
JP2021518736A (en) | 2021-08-02 |
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