CN109887670B - High-power charging pile parallel cooling cable with red copper corrugated pipe structure - Google Patents
High-power charging pile parallel cooling cable with red copper corrugated pipe structure Download PDFInfo
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- CN109887670B CN109887670B CN201910116117.9A CN201910116117A CN109887670B CN 109887670 B CN109887670 B CN 109887670B CN 201910116117 A CN201910116117 A CN 201910116117A CN 109887670 B CN109887670 B CN 109887670B
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- pipe
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- 238000001816 cooling Methods 0.000 title claims abstract description 138
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 86
- 239000010949 copper Substances 0.000 title claims abstract description 86
- 239000004020 conductor Substances 0.000 claims abstract description 129
- 239000000110 cooling liquid Substances 0.000 claims abstract description 85
- 239000007788 liquid Substances 0.000 claims abstract description 19
- 238000007789 sealing Methods 0.000 claims description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000001681 protective effect Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009954 braiding Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
Abstract
A high-power charging pile parallel cooling cable with a red copper corrugated pipe structure relates to the field of high-power charging piles and comprises a DC+ parallel cooling liquid cooling cable, a DC-parallel cooling liquid cooling cable and a plurality of signal wires. The cold-parallel liquid cooling cable comprises a corrugated pipe conductor, and a cold-parallel electrode and a cold-parallel terminal which are connected to two ends of the corrugated pipe conductor, wherein the corrugated pipe conductor comprises a corrugated copper pipe conductor and a soft wire, the corrugated pipe conductor penetrates through an insulating sleeve of the DC+, DC-cold-parallel liquid cooling cable, and the outer diameter of the corrugated pipe conductor is smaller than the inner diameter of the insulating sleeve. One end of the insulating sleeve is sleeved with the electrode sleeve shaft seal of the cold electrode, and the other end of the insulating sleeve is sleeved with the terminal sleeve shaft seal of the cold terminal. The corrugated copper pipe conductor has the channel function, the conducting function and the bending prevention function, and the parallel cooling electrode, the corrugated pipe conductor and the parallel cooling terminal form a complete cooling circulation channel, so that the parallel cooling liquid cooling cable is further perfected.
Description
Technical Field
The invention relates to the field of high-power charging piles used for new energy electric automobiles, in particular to a high-power charging pile parallel cooling cable with a red copper corrugated pipe structure.
Background
Along with the rapid growth of new energy electric vehicles, charging piles are also spread over all corners of cities. The high-power charging pile is increasingly prominent in the field of charging piles due to the advantages of high charging current and short charging time. Patent application number CN201810249723.3 discloses a special DC+ of high-power electric pile and DC-cooling liquid cooling cable. The conductors used for conducting in the parallel cooling liquid cooling cable comprise soft conductors and a protective copper net, wherein the soft conductors are tubular conductors formed by twisting a plurality of tinned copper stranded wire cores, the cross section area of the soft conductors is 35-60 square millimeters, the protective copper net is a tubular protective net formed by braiding tinned copper wires, and the soft conductors penetrate through the inner pipe wall of the protective copper net and are jointly used for conducting electricity. An inner cooling pipe penetrating through the tetrafluoroethylene material in the conductor forms an inner cooling channel, an outer cooling channel is arranged between the inner cooling pipe and the insulating sleeve, the inner cooling channel and the outer cooling channel realize isolated circulation through the inner cooling pipe, and cooling liquid realizes cooling of the liquid cooling cable through circulation of the inner cooling channel and the outer cooling channel.
Disclosure of Invention
In order to continuously perfect the DC+ and DC-parallel cooling liquid cooling cable in the background technology, the invention discloses a high-power charging pile parallel cooling cable with a red copper corrugated pipe structure.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the utility model provides a high-power fills electric pile and cold cable of red copper bellows structure, includes a DC+ and cold liquid cooling cable, a DC-and cold liquid cooling cable and a plurality of signal lines in the cable is covered, DC+ and cold liquid cooling cable includes the bellows conductor and connects at the cold electrode and the cold end of the cold of bellows conductor both ends.
The corrugated pipe conductor comprises a corrugated copper pipe conductor and a soft wire, penetrates through an insulating sleeve of the DC+, DC-parallel cooling liquid cooling cable, and the outer diameter of the corrugated pipe conductor is smaller than the inner diameter of the insulating sleeve.
The parallel cooling electrode is a shaft body, one end of the parallel cooling electrode is provided with an electrode pipeline, the other end of the parallel cooling electrode is provided with a cooling liquid inlet, the end face of the electrode pipeline is provided with a wire connecting port used for being connected with a corrugated pipe conductor, and the wire connecting port is communicated with the cooling liquid inlet through a connecting through hole; an electrode water return hole, an electrode sleeve shaft and a cooling liquid outlet are sequentially arranged on the pipe wall of the electrode pipe along the direction away from the wire connecting port, wherein the electrode sleeve shaft is used for being in sealing sleeve joint with the insulating sleeve, and the outer diameter of the electrode sleeve shaft is larger than that of the electrode pipe; an inner cooling conduit is connected in the connecting through hole, the outer diameter of the inner cooling conduit is smaller than the inner diameter of the electrode pipeline, one end of the inner cooling conduit is connected with the connecting through hole, the other end of the inner cooling conduit is positioned in the wire connecting port, and one end of the corrugated pipe conductor is in compression joint in a gap between the wire connecting port and the inner cooling conduit.
The parallel cooling terminal is of a step shaft-shaped structure with a cavity inside, the outside of the parallel cooling terminal is sequentially divided into a wire connecting part, a charging gun connecting part and a wiring end part, the cavity inside of the parallel cooling terminal is divided into a large-diameter cylindrical cavity and a small-diameter cylindrical cavity which are coaxial, and annular steps are arranged between the large-diameter cylindrical cavity and the small-diameter cylindrical cavity for connection; the end part of the large-diameter cylindrical cavity corresponds to the wire connecting part, and the end part of the small-diameter cylindrical cavity is of a closed structure; a terminal water return hole and a terminal sleeving shaft used for being hermetically sleeved with the insulating sleeve are sequentially arranged on the pipe wall of the wire connecting part along the direction away from the opening end part, and the outer diameter of the terminal sleeving shaft is larger than that of the wire connecting part; the corrugated pipe is characterized in that a shunt pipe is arranged in the small-diameter cylindrical cavity, the outer diameter of the shunt pipe is smaller than the inner diameter of the small-diameter cylindrical cavity, a radial opening is formed in one end of the small-diameter cylindrical cavity, the other end of the shunt pipe is arranged in the large-diameter cylindrical cavity, and the other end of the corrugated pipe conductor is in compression joint with a gap between the large-diameter cylindrical cavity and the shunt pipe.
One end of the insulating sleeve is sleeved with the electrode sleeve shaft seal of the cold electrode, and the other end of the insulating sleeve is sleeved with the terminal sleeve shaft seal of the cold terminal.
Preferably, the soft wire is a tubular wire formed by twisting a plurality of tinned copper stranded wire cores, and the soft wire penetrates through the outer tube wall of the corrugated copper tube conductor.
Preferably, the soft wire is a tubular wire formed by twisting a plurality of tinned copper stranded wire cores, and the soft wire penetrates through the inner pipe wall of the corrugated copper pipe conductor.
Preferably, the soft wire is a cylindrical wire formed by twisting a plurality of tinned copper stranded wire cores, the soft wire penetrates through the inner pipe wall of the corrugated copper pipe conductor, and the outer diameter of the soft wire is smaller than the inner diameter of the corrugated copper pipe conductor.
Preferably, a step shaft is arranged on the outer pipe wall at one end of the inner cooling pipe, the step shaft is in sealing connection with the connecting through hole, and the other end of the step shaft is positioned in the lead connecting port.
Preferably, a sealing shaft sleeve is screwed in the cooling liquid inlet, a sealing sinking table is arranged between the sealing shaft sleeve and the connecting through hole, and sealing rings are arranged in the sealing sinking table and on the outer pipe wall of the inner cooling pipe.
Preferably, a cylindrical protruding block coaxial with the electrode pipeline is arranged at the cooling liquid inlet end of the parallel cooling electrode, and the cooling liquid outlet is positioned on the protruding block; and the convex block is also provided with a mounting seat for establishing and electrically connecting the cold electrode and the charging pile.
Preferably, the electrode sleeve shaft and the terminal sleeve shaft are provided with horse teeth, and two ends of the insulating sleeve are respectively sleeved on the horse teeth of the electrode sleeve shaft and the terminal sleeve shaft and are hooped by the locking clamp.
Preferably, the outer end of the terminal portion is fitted with a tapered rubber plug.
Preferably, a ring groove is arranged on the outer pipe wall of the electrode pipe, and the electrode water return hole is positioned in the ring groove; and an annular groove is formed in the outer pipe wall of the wire connecting part, and the terminal water return hole is positioned in the annular groove.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
the invention discloses a high-power charging pile cold-combined cable with a red copper corrugated pipe structure, wherein a soft wire penetrates through the outer pipe wall of a corrugated copper pipe conductor and also can penetrate through the outer pipe wall of the corrugated copper pipe conductor. The corrugated copper pipe conductor is a sealed pipeline, so that the corrugated copper pipe conductor can replace a cooling liquid inner pipe in a DC+ and DC-parallel cooling liquid cooling cable special for a high-power charging pile with the patent application number of CN201810249723.3, and plays the same role of forming a cooling liquid inner channel. The corrugated copper pipe conductor is a corrugated pipe, so that the corrugated copper pipe conductor has the characteristic that the cross-section flow area is unchanged when the corrugated copper pipe conductor is bent, and the cooling liquid flow in the cold liquid cooling cable is not influenced by the bending of the cable. Since the corrugated copper tube conductor itself is copper tube, it itself participates in the conduction of current between the cold side and the cold side electrode.
The inner cooling guide pipe, the corrugated pipe conductor and the shunt pipe which are communicated with each other form a cooling liquid inner channel into which cooling liquid flows, the terminal water return hole, the annular cavity between the insulating sleeve and the corrugated pipe conductor and the electrode water return hole which are communicated with each other form a cooling liquid outer channel from which cooling liquid flows out, and the cooling liquid inner channel and the cooling liquid outer channel are communicated through radial openings on the shunt pipe, so that circulating cooling of cooling liquid in the parallel cooling electrode, the corrugated pipe conductor and the parallel cooling terminal is formed.
Compared with the background art, the corrugated copper pipe conductor has obvious technical improvements in the channel effect, the conductive effect and the bending prevention effect, and the parallel cooling electrode, the corrugated copper pipe conductor and the parallel cooling terminal form a complete cooling circulation channel, so that the DC+ and DC-parallel cooling liquid cooling cable in the background art is further perfected.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic cross-sectional structure of a parallel-cooled liquid cooled cable.
FIG. 3 is a schematic view of the structure of a flexible wire penetrating the inner wall of a corrugated copper pipe conductor.
Fig. 4 is a schematic diagram of an axial side structure of a parallel cooling electrode.
Fig. 5 is a schematic view of the axial cross-sectional structure of fig. 4.
Fig. 6 is a schematic axial side structural view of the parallel cooling terminal.
Fig. 7 is a schematic view of the axial cross-sectional structure of fig. 6.
Fig. 8 is a schematic view of the structure of a flexible wire penetrating the outer wall of the corrugated copper pipe conductor.
Fig. 9 is a schematic view of the structure of the flexible wire in the corrugated copper pipe conductor when the flexible wire is a cylindrical wire.
Fig. 10 is a schematic end view of fig. 9 when crimped with either a cold-side electrode or a cold-side sub.
Fig. 11 is a schematic diagram of the working principle of the present invention.
In the figure: 1. a bellows conductor; 1.1, a corrugated copper pipe conductor; 1.2, soft conductors; 2. and cooling the electrode; 2.1, electrode pipelines; 2.2, a cooling liquid inlet; 2.3, connecting the lead wire connectors; 2.4, connecting through holes; 2.5, electrode water return holes; 2.6, sleeving an electrode sleeve shaft; 2.7, a liquid outlet of the cooling liquid; 2.8, an internal cooling duct; 2.9, sealing the shaft sleeve; 3. cooling the terminal; 3.1, a wire connecting part; 3.2, a charging gun connecting part; 3.3, a terminal portion; 3.4, a large-diameter cylindrical cavity; 3.5, small diameter cylindrical cavity; 3.6, a terminal water return hole; 3.7, sleeving a terminal sleeve shaft; 3.8, shunt tubes; 3.81, radial openings; 3.9, a conical rubber plug; 4. an insulating sleeve; 5. locking the clamp; 6. a cooling liquid inner passage; 7. and a cooling liquid outer channel.
Detailed Description
The invention will be explained in more detail by the following examples, the purpose of which is to protect all technical improvements within the scope of the invention.
Embodiment one: a high-power charging pile parallel cooling cable with a red copper corrugated pipe structure is shown in fig. 1, and comprises a DC+ parallel cooling liquid cooling cable, a DC-parallel cooling liquid cooling cable and a plurality of signal wires, wherein the DC+ parallel cooling liquid cooling cable, the DC-parallel cooling liquid cooling cable and the signal wires are arranged in a cable jacket, and the parallel cooling liquid cooling cable comprises a corrugated pipe conductor 1, parallel cooling electrodes 2 and parallel cooling terminals 3 which are connected to two ends of the corrugated pipe conductor 1. And the cooling liquid cooling cable refers to a cooling liquid circulation channel of the DC+ and DC-two liquid cooling cables which are mutually independent. The cooling liquid enters from the liquid cooling electrode liquid inlet of the respective DC+ or DC-parallel cooling liquid cooling cable, returns after flowing to the respective liquid cooling electrode, and flows out from the liquid cooling electrode liquid outlet of the respective liquid cooling electrode, and is cooled circularly.
As shown in fig. 2-3, the corrugated pipe conductor 1 comprises a corrugated copper pipe conductor 1.1 and a soft wire 1.2, the corrugated pipe conductor 1 penetrates through an insulating sleeve 4 of the DC+, DC-parallel cooling liquid cooling cable, and the outer diameter of the corrugated pipe conductor 1 is smaller than the inner diameter of the insulating sleeve 4; in this embodiment, the soft wire 1.2 penetrates through the inner tube wall of the corrugated copper tube conductor 1.1, and the inner cooling conduit 2.8, the corrugated tube conductor 1 and the shunt tube 3.8 which are communicated with each other form a cooling liquid inner channel 6 into which cooling liquid flows. In this embodiment, the inner tube wall of the corrugated copper tube conductor 1.1 is a part of the cooling liquid inner channel 6, the outer tube wall of the corrugated copper tube conductor 1.1 is a part of the cooling liquid outer channel 7, the soft conductor 1.2 is located in the cooling liquid outer channel 6, and both the corrugated copper tube conductor 1.1 and the soft conductor 1.2 can be cooled by circulating cooling liquid.
The corrugated copper pipe conductor 1.1 is a sealed pipeline, so that the corrugated copper pipe conductor can replace a cooling liquid inner pipe in a DC+ and DC-parallel cooling liquid cooling cable special for a high-power charging pile with the patent application number of CN201810249723.3, and plays the same role of forming a cooling liquid inner channel. Since the corrugated copper pipe conductor 1.1 is a corrugated pipe, the cross-sectional flow area is not changed when the corrugated copper pipe conductor is bent, and the flow of the cooling liquid in the liquid cooling cable is not affected by the bending of the cable. Since the corrugated copper pipe conductor 1.1 itself is a copper pipe, it itself participates in the current conduction between the liquid-cooled terminal 3 and the liquid-cooled electrode 2.
As shown in fig. 4-5, the parallel cooling electrode 2 is a shaft body, one end of the parallel cooling electrode is provided with an electrode pipeline 2.1, the other end of the parallel cooling electrode is provided with a cooling liquid inlet 2.2, the end face of the electrode pipeline 2.1 is provided with a wire connecting port 2.3 used for being connected with the corrugated pipe conductor 1, and the wire connecting port 2.3 is communicated with the cooling liquid inlet 2.2 through a connecting through hole 2.4; an electrode water return hole 2.5, an electrode sleeve joint shaft 2.6 used for being in sealing sleeve joint with the insulating sleeve 4 and a cooling liquid outlet 2.7 are sequentially arranged on the pipe wall of the electrode pipe 2.1 along the direction away from the wire connecting port 2.3, wherein the outer diameter of the electrode sleeve joint shaft 2.6 is larger than that of the electrode pipe 2.1; an inner cooling conduit 2.8 is connected in the connecting through hole 2.4, the outer diameter of the inner cooling conduit 2.8 is smaller than the inner diameter of the electrode pipeline 2.1, one end of the inner cooling conduit 2.8 is connected with the connecting through hole 2.4, the other end of the inner cooling conduit is positioned in the wire connecting port 2.3, and one end of the corrugated pipe conductor 1 is in compression joint in a gap between the wire connecting port 2.3 and the inner cooling conduit 2.8.
In order to increase the tightness, a step shaft is arranged on the outer pipe wall at one end of the inner cooling pipe 2.8, the step shaft is in sealing connection with the connecting through hole 2.4, and the other end of the step shaft is positioned in the lead connecting port 2.3. The cooling liquid inlet 2.2 is internally and spirally connected with a sealing shaft sleeve 2.9, a sealing sinking table is arranged between the sealing shaft sleeve 2.9 and the connecting through hole 2.4, and sealing rings are arranged on the outer pipe walls of the inner cooling guide pipe 2.8 and the inner sealing sinking table.
In order to increase assembly manufacturability, a cylindrical protruding block coaxial with the electrode pipeline 2.1 is arranged at the end of the cooling liquid inlet 2.2 of the parallel cooling electrode 2, and the cooling liquid outlet 2.7 is positioned on the protruding block. The convex block is also provided with a mounting seat for establishing and electrically connecting the cold electrode 2 and the charging pile.
In order to enhance the circulation effect of the electrode water return hole, a ring groove is arranged on the outer pipe wall of the electrode pipeline 2.1, and the electrode water return hole 2.5 is positioned in the ring groove.
As shown in fig. 6-7, the cold end 3 is of a step shaft-shaped structure with a cavity inside, the outside of the cold end is sequentially divided into a wire connecting part 3.1, a charging gun connecting part 3.2 and a wiring end part 3.3, the cavity inside is divided into two sections of a coaxial large-diameter cylindrical cavity 3.4 and a small-diameter cylindrical cavity 3.5, and annular step connection is arranged between the two sections; the outside of the large-diameter cylindrical cavity 3.4 corresponds to the wire connecting part 3.1, the end part of the large-diameter cylindrical cavity is of an opening structure, the outside of the small-diameter cylindrical cavity 3.5 corresponds to the terminal part 3.3, and the end part of the small-diameter cylindrical cavity is of a closed structure; a terminal water return hole 3.6 and a terminal sleeving shaft 3.7 used for being hermetically sleeved with the insulating sleeve 4 are sequentially arranged on the pipe wall of the wire connecting part 3.1 along the direction away from the opening end part, and the outer diameter of the terminal sleeving shaft 3.7 is larger than that of the wire connecting part 3.1; the small-diameter cylindrical cavity 3.5 is internally provided with the shunt tube 3.8, the outer diameter of the shunt tube 3.8 is smaller than the inner diameter of the small-diameter cylindrical cavity 3.5, one end of the small-diameter cylindrical cavity 3.5 of the shunt tube 3.8 is provided with the radial opening 3.81, the other end of the small-diameter cylindrical cavity 3.5 is arranged in the large-diameter cylindrical cavity 3.4, and the other end of the corrugated pipe conductor 1 is in compression joint with a gap between the large-diameter cylindrical cavity 3.4 and the shunt tube 3.8.
In order to prevent accidental short-circuiting of the exposed terminal portions, a tapered rubber plug 3.9 is mounted at the outer end of the terminal portion 3.3.
In order to enhance the circulation effect of the terminal water return hole, an annular groove is arranged on the outer pipe wall of the wire connecting part 3.1, and the terminal water return hole 3.6 is positioned in the annular groove.
As shown in fig. 2, one end of the insulating sleeve 4 is in sealing sleeve joint with the electrode sleeve joint shaft 2.6 of the cold-combined electrode 2, and the other end of the insulating sleeve is in sealing sleeve joint with the terminal sleeve joint shaft 3.7 of the cold-combined terminal 3. The terminal water return holes 3.6, the annular cavity between the insulating sleeve 4 and the corrugated pipe conductor 1 and the electrode water return holes 2.5 which are communicated with each other form a cooling liquid outer channel 7 from which cooling liquid flows out.
In order to enhance the sleeving tightness, the electrode sleeving shaft 2.6 and the terminal sleeving shaft 3.7 are provided with horse teeth, and two ends of the insulating sleeve 4 are respectively sleeved on the horse teeth of the electrode sleeving shaft 2.6 and the terminal sleeving shaft 3.7 and are hooped by the locking clamp 5.
Working principle: as shown in fig. 11, one end of the corrugated pipe conductor 1 is in pressure connection with a gap between the wire connection port 2.3 and the internal cooling conduit 2.8, and the other end is in pressure connection with a gap between the large-diameter cylindrical cavity 3.4 and the shunt pipe 3.8, so that the electric connection from the parallel cooling electrode to the parallel cooling terminal is formed, and the high-power current of the charging pile is transmitted to the socket of the electric automobile through the invention.
The inner cooling conduit 2.8, the corrugated pipe conductor 1 and the shunt pipe 3.8 which are communicated with each other form a cooling liquid inner channel 6 into which cooling liquid flows; the terminal water return holes 3.6, the annular cavity between the insulating sleeve 4 and the corrugated pipe conductor 1 and the electrode water return holes 2.5 which are communicated with each other form a cooling liquid outer channel 7 from which cooling liquid flows out.
The cooling liquid flows into the cooling liquid inner channel 6 from the cooling liquid inlet 2.2 of the parallel cooling electrode 2, returns to the cooling liquid outer channel 7 from the radial opening 3.81 on the shunt tube 3.8, and finally flows out from the cooling liquid outlet 2.7 of the parallel cooling electrode 2, thus forming the circulating cooling of the cooling liquid in the parallel cooling electrode 2, the corrugated pipe conductor 1 and the parallel cooling terminal 3.
Embodiment two: as shown in fig. 8, the difference between the embodiment and the embodiment is that the flexible conductor 1.2 is a tubular conductor formed by twisting a plurality of tinned copper twisted cores, and the flexible conductor 1.2 penetrates through the outer tube wall of the corrugated copper tube conductor 1.1. In the first embodiment, the flexible conductor 1.2 penetrates through the inner pipe wall of the corrugated copper pipe conductor 1.1, in this embodiment, the flexible conductor 1.2 penetrates through the outer pipe wall of the corrugated copper pipe conductor 1.1, the inner pipe wall of the corrugated copper pipe conductor 1.1 is a part of the cooling liquid inner channel 6, the outer pipe wall of the corrugated copper pipe conductor 1.1 is a part of the cooling liquid outer channel 7, the flexible conductor 1.2 is located in the cooling liquid outer channel 7, and both the corrugated copper pipe conductor 1.1 and the flexible conductor 1.2 can be cooled by circulating cooling liquid. Obviously, this solution has the same conduction and cooling effects as in the first embodiment, and its beneficial effects are the same as those described in the first embodiment.
Embodiment III: in the first embodiment, as shown in fig. 9, the difference between the present embodiment and the first embodiment is that the flexible wire 1.2 is a cylindrical wire formed by twisting a plurality of strands of tin-plated copper twisted wire cores, the flexible wire 1.2 penetrates through the inner tube wall of the corrugated copper tube conductor 1.1, and the outer diameter of the flexible wire 1.2 is smaller than the inner diameter of the corrugated copper tube conductor 1.1. In the first embodiment, the flexible conductor 1.2 is a tubular conductor, penetrates through the inner tube wall of the corrugated copper tube conductor 1.1, in this embodiment, the flexible conductor 1.2 is a cylindrical conductor, penetrates through the inner tube wall of the corrugated copper tube conductor 1.1, the inner tube wall of the corrugated copper tube conductor 1.1 is a part of the cooling liquid inner channel 6, the outer tube wall of the corrugated copper tube conductor 1.1 is a part of the cooling liquid outer channel 7, the flexible conductor 1.2 is located in the cooling liquid inner channel 6, and both the corrugated copper tube conductor 1.1 and the flexible conductor 1.2 can be cooled by circulating cooling liquid. Obviously, this solution has the same conduction and cooling effects as in the first embodiment, and its beneficial effects are the same as those described in the first embodiment.
As shown in fig. 10, since the flexible conductor 1.2 is a cylindrical conductor, in order to realize the crimping with the parallel cold electrode 2 and the parallel cold terminal 3, the corrugated copper pipe conductor 1.1 is cylindrical at the crimping position with the parallel cold electrode 2 or the parallel cold terminal 3, and the multiple strands of tinned copper stranded wires of the flexible conductor 1.2 are diverged and dispersed along the circumferential direction and are pressed into the annular gap of the parallel cold electrode 2 or the parallel cold terminal 3 together with the cylindrical tubular joint of the corrugated copper pipe conductor 1.1, thereby ensuring that the flexible conductor 1.2, the corrugated copper pipe conductor 1.1 and the parallel cold electrode 2 or the parallel cold terminal 3 are electrically connected reliably, and ensuring that the cooling liquid can circulate from the circumferential diverged space of the flexible conductor 1.2.
The invention is not described in detail in the prior art.
Claims (10)
1. The utility model provides a high-power fills electric pile and cold cable of red copper bellows structure, includes that cable is covered an in DC+ and cold liquid cooling cable, a DC-and cold liquid cooling cable and a plurality of signal lines, characterized by: the DC+, DC-parallel cooling liquid cooling cable comprises a corrugated pipe conductor (1), parallel cooling electrodes (2) and parallel cooling terminals (3) which are connected to two ends of the corrugated pipe conductor (1);
the corrugated pipe conductor (1) comprises a corrugated copper pipe conductor (1.1) and a soft wire (1.2), the corrugated pipe conductor (1) penetrates through an insulating sleeve (4) of the DC+, DC-parallel cooling liquid cooling cable, and the outer diameter of the corrugated pipe conductor (1) is smaller than the inner diameter of the insulating sleeve (4);
the parallel cooling electrode (2) is a shaft body, one end of the parallel cooling electrode is provided with an electrode pipeline (2.1), the other end of the parallel cooling electrode is provided with a cooling liquid inlet (2.2), the end face of the electrode pipeline (2.1) is provided with a wire connecting port (2.3) used for being connected with the corrugated pipe conductor (1), and the wire connecting port (2.3) is communicated with the cooling liquid inlet (2.2) through a connecting through hole (2.4); an electrode water return hole (2.5), an electrode sleeve joint shaft (2.6) and a cooling liquid outlet (2.7) are sequentially arranged on the pipe wall of the electrode pipe (2.1) along the direction away from the wire connecting port (2.3), wherein the electrode sleeve joint shaft (2.6) is used for being in sealing sleeve joint with the insulating sleeve (4), and the outer diameter of the electrode sleeve joint shaft (2.6) is larger than that of the electrode pipe (2.1); an inner cooling conduit (2.8) is connected in the connecting through hole (2.4), the outer diameter of the inner cooling conduit (2.8) is smaller than the inner diameter of the electrode pipeline (2.1), one end of the inner cooling conduit (2.8) is connected with the connecting through hole (2.4), the other end of the inner cooling conduit is positioned in the lead connecting port (2.3), and one end of the corrugated pipe conductor (1) is in pressure connection in a gap between the lead connecting port (2.3) and the inner cooling conduit (2.8);
the cold end (3) is of a step shaft-shaped structure with a cavity inside, the outside of the cold end is sequentially divided into a wire connecting part (3.1), a charging gun connecting part (3.2) and a wiring end part (3.3), the cavity inside is divided into two sections of a large-diameter cylindrical cavity (3.4) and a small-diameter cylindrical cavity (3.5) which are coaxial, and annular step connection is arranged between the two sections; the end part of the large-diameter cylindrical cavity (3.4) corresponds to the wire connecting part (3.1), the end part of the large-diameter cylindrical cavity is of an opening structure, the end part of the small-diameter cylindrical cavity (3.5) corresponds to the wire connecting part (3.3), and the end part of the small-diameter cylindrical cavity is of a closed structure; a terminal water return hole (3.6) and a terminal sleeve joint shaft (3.7) used for being in sealing sleeve joint with the insulating sleeve (4) are sequentially arranged on the pipe wall of the wire connecting part (3.1) along the direction away from the opening end part, and the outer diameter of the terminal sleeve joint shaft (3.7) is larger than the outer diameter of the wire connecting part (3.1); a shunt tube (3.8) is arranged in the small-diameter cylindrical cavity (3.5), the outer diameter of the shunt tube (3.8) is smaller than the inner diameter of the small-diameter cylindrical cavity (3.5), a radial opening (3.81) is formed in one end of the small-diameter cylindrical cavity (3.5) in the shunt tube (3.8), the other end of the small-diameter cylindrical cavity is arranged in the large-diameter cylindrical cavity (3.4), and the other end of the corrugated tube conductor (1) is in compression joint with a gap between the large-diameter cylindrical cavity (3.4) and the shunt tube (3.8);
one end of the insulating sleeve (4) is in sealing sleeve joint with an electrode sleeve joint shaft (2.6) of the parallel cooling electrode (2), and the other end of the insulating sleeve is in sealing sleeve joint with a terminal sleeve joint shaft (3.7) of the parallel cooling terminal (3).
2. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: the flexible conductor (1.2) is a tubular conductor formed by twisting a plurality of tin-plated copper twisted wire cores, and the flexible conductor (1.2) penetrates through the outer wall of the corrugated copper pipe conductor (1.1).
3. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: the flexible conductor (1.2) is a tubular conductor formed by twisting a plurality of tin-plated copper twisted wire cores, and the flexible conductor (1.2) penetrates through the inner pipe wall of the corrugated copper pipe conductor (1.1).
4. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: the flexible conductor (1.2) is a cylindrical conductor formed by twisting a plurality of tin-plated copper twisted wire cores, the flexible conductor (1.2) penetrates through the inner pipe wall of the corrugated copper pipe conductor (1.1), and the outer diameter of the flexible conductor (1.2) is smaller than the inner diameter of the corrugated copper pipe conductor (1.1).
5. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: the outer pipe wall at one end of the inner cooling pipe (2.8) is provided with a step shaft, the step shaft is in sealing connection with the connecting through hole (2.4), and the other end of the step shaft is positioned in the lead connecting port (2.3).
6. A high power charging pile and cooling cable with a red copper corrugated pipe structure as defined in any one of claims 1 or 5, wherein: the cooling liquid inlet (2.2) is internally and spirally connected with a sealing shaft sleeve (2.9), a sealing sinking table is arranged between the sealing shaft sleeve (2.9) and the connecting through hole (2.4), and sealing rings are arranged on the outer pipe walls of the inner cooling guide pipe (2.8) and the inner cooling guide pipe in the sealing sinking table.
7. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: a cylindrical lug coaxial with the electrode pipeline (2.1) is arranged at the end of the cooling liquid inlet (2.2) of the parallel cooling electrode (2), and the cooling liquid outlet (2.7) is positioned on the lug; and the convex block is also provided with a mounting seat for establishing and electrically connecting the cold electrode (2) and the charging pile.
8. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: the electrode sleeve joint shaft (2.6) and the terminal sleeve joint shaft (3.7) are provided with horse teeth, and two ends of the insulating sleeve (4) are respectively sleeved on the horse teeth of the electrode sleeve joint shaft (2.6) and the terminal sleeve joint shaft (3.7) and are hooped by the locking clamp (5).
9. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: a conical rubber plug (3.9) is mounted at the outer end of the terminal part (3.3).
10. The high-power charging pile cooling cable with a red copper corrugated pipe structure as defined in claim 1, wherein the high-power charging pile cooling cable is characterized in that: a ring groove is arranged on the outer pipe wall of the electrode pipeline (2.1), and the electrode water return hole (2.5) is positioned in the ring groove; the outer pipe wall of the wire connecting part (3.1) is provided with a ring groove, and the terminal water return hole (3.6) is positioned in the ring groove.
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| CN201910116117.9A CN109887670B (en) | 2019-02-11 | 2019-02-11 | High-power charging pile parallel cooling cable with red copper corrugated pipe structure |
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| CN201910116117.9A CN109887670B (en) | 2019-02-11 | 2019-02-11 | High-power charging pile parallel cooling cable with red copper corrugated pipe structure |
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| KR102113309B1 (en) * | 2019-11-22 | 2020-05-20 | 중앙제어 주식회사 | Conduit Structure for Charging Gun |
| CN111200200B (en) * | 2020-01-20 | 2021-02-09 | 洛阳正奇机械有限公司 | Liquid cooling cable for liquid cooling charging socket of new energy electric automobile |
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