CN115347394A - Electric automobile charging liquid cooling terminal - Google Patents
Electric automobile charging liquid cooling terminal Download PDFInfo
- Publication number
- CN115347394A CN115347394A CN202211022464.3A CN202211022464A CN115347394A CN 115347394 A CN115347394 A CN 115347394A CN 202211022464 A CN202211022464 A CN 202211022464A CN 115347394 A CN115347394 A CN 115347394A
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- liquid cooling
- conductor
- plastic pipe
- channel
- terminal
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
- B60L53/14—Conductive energy transfer
- B60L53/18—Cables specially adapted for charging electric vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
- B60L53/30—Constructional details of charging stations
- B60L53/302—Cooling of charging equipment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
- H01B7/423—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation using a cooling fluid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention designs an electric automobile charging liquid cooling terminal, which comprises an inner conductor, an outer contact conductor, a cable conductor and a plastic pipe, wherein the inner conductor is arranged on the outer contact conductor; the cable conductor is positioned in the plastic pipe, the tail end of the inner conductor is connected with the cable conductor, the outer contact conductor is nested outside the inner conductor, and the outer contact conductor is connected with the plastic pipe in a sealing manner; the front end of the inner conductor is of a double-spiral structure and specifically comprises a first spiral channel and a second spiral channel, the first spiral channel is connected with an inlet channel of the liquid cooling plastic pipe through a plastic connecting piece, and the second spiral channel is connected with an outlet channel of the liquid cooling plastic pipe. According to the liquid cooling plastic pipe, the front end of the inner conductor is designed to be of a double-spiral structure, the first spiral channel is connected with the inlet channel of the liquid cooling plastic pipe, and the second spiral channel is connected with the outlet channel of the liquid cooling plastic pipe, so that the contact area of the liquid cooling medium and the large-current conductive terminal is enlarged, the local active heat dissipation capacity of the conductive terminal is increased, and the local temperature rise of the terminal is reduced.
Description
Technical Field
The invention belongs to the field of liquid cooling charging, and particularly relates to a liquid cooling terminal for charging an electric automobile.
Background
The liquid cooling terminal is usually cooled at the tail part of the large-current conductive terminal in a cooling liquid mode, or the cooling liquid is used for simply taking away heat generated on the large-current terminal in a terminal internal mode. Chinese patent CN110416777a discloses a liquid-cooled charging connector and an assembling method thereof, wherein the liquid-cooled charging connector includes an outer housing, a high-voltage terminal and a wire; the high-voltage terminal is arranged in the cavity of the outer shell, and one end of the high-voltage terminal penetrates out of the cavity for charging; the wire part penetrates into the cavity and is in compression joint with the high-voltage terminal to form a compression joint area; wherein, the cavity is filled and sealed with heat-conducting glue to cover the crimping area. The crimping district that high-pressure terminal and wire formed is in the cavity of shells, behind the embedment heat-conducting glue in the cavity, the cladding crimping district of heat-conducting glue can fix the anomalous crimping district of high-pressure terminal and wire, makes the crimping district obtain good contact, can also increase the heat conduction area of contact in crimping district, and then increases the radiating rate in crimping district, the heat that makes the crimping district produce is convenient for in time dissipate, secondly, can thoroughly keep apart coupling and crimping district, eliminate the sealed insulating problem that coupling seepage hydrops leads to. But the shortcoming is that the cooling fluid is less with terminal area of contact, leads to heat exchange efficiency not high, and the terminal cooling is limited.
Chinese patent CN216146628U discloses a replaceable terminal assembly for a liquid cooling charging gun. The assembly comprises a terminal body, a terminal post, a terminal insulating cap, a liquid cooling cable conductor, a cooling liquid pipe and a temperature sensor, wherein the terminal body is detachably connected with the terminal post, the front end of the terminal post is connected with the terminal insulating cap, and the liquid cooling cable conductor, the cooling liquid pipe and the temperature sensor are installed on the terminal body. This scheme adopts the liquid cooling technique can carry out the liquid circulation cooling heat dissipation to the rifle terminal that charges, has improved the rifle terminal current-carrying capacity that charges, can promote charging current greatly, shortens the charge time, satisfies user's quick charge's demand. Also can not lead to serious after the rifle terminal that charges is polluted or wearing and tearing generating heat, very big reduction user's use risk, when the rifle terminal that charges damages, can the quick replacement rifle terminal that charges, very big reduction the operation maintenance cost of filling electric pile. Although the heat generated on the large-current terminal is taken away by using the cooling liquid simply in the terminal, the heat exchange efficiency is not high, and the large-current conductive terminal is excessively high in local heating in the charging process, so that the charging current is limited.
Usually, the large-current terminal is the maximum heating point, and the maximum temperature rise of the local part of the large-current terminal limits the maximum current and the current charging time of the liquid cooling charging system. Although the terminals are all provided with the liquid cooling device, the contact area of the liquid cooling medium and the large-current conductive terminal is small, or the distance between the liquid cooling medium and the heating point is too far, so that the heat transfer efficiency is low, and the liquid cooling medium cannot take away heat generated on the conductive terminal. Therefore, it is necessary to fully contact the liquid cooling medium with the high current conductive terminal as much as possible.
Disclosure of Invention
In order to solve the above problems, a structure is designed to increase the contact area between the liquid cooling medium and the large current conducting terminal as much as possible, and the liquid cooling medium directly reaches the heating part of the conducting terminal, thereby solving the problem of local temperature rise of the terminal.
In order to achieve the effect, the invention designs the liquid cooling terminal for charging the electric automobile.
A liquid cooling terminal for charging an electric automobile comprises an inner conductor, an outer contact conductor, a cable conductor and a plastic pipe;
the cable conductor is positioned inside the plastic pipe;
the tail end of the inner conductor is connected with the cable conductor;
the outer contact conductor is nested outside the inner conductor;
the outer contact conductor is connected with the plastic pipe in a sealing mode.
Preferably, the inside of the plastic pipe is respectively provided with a liquid cooling plastic pipe inlet channel and a liquid cooling plastic pipe outlet channel;
the cable conductor is arranged in the outlet channel of the liquid cooling plastic pipe.
Preferably, a gap is further arranged between the outlet channel of the liquid cooling plastic pipe and the cable conductor, and the gap is used for flowing a liquid cooling medium.
Preferably, the front end of the inner conductor is of a double-spiral structure, and the double-spiral structure comprises a first spiral channel and a second spiral channel; the first spiral channel and the second spiral channel are communicated with the head part of the inner conductor;
the first spiral channel is connected with the inlet channel of the liquid cooling plastic pipe through a plastic connecting piece;
and the second spiral channel is connected with the outlet channel of the liquid cooling plastic pipe.
Preferably, one side of the bottom of the outer contact conductor is also provided with a cooling liquid inlet; the cooling liquid inlet is connected with the first spiral channel.
Preferably, the bottom of the plastic connecting piece is connected with an inlet channel of the liquid cooling plastic pipe;
and the top of the plastic connecting piece is provided with a protruding port, and the protruding port is connected with a cooling liquid inlet.
Preferably, a sealing ring is further arranged between the plastic connector and the outer contact conductor.
Preferably, the tail of the outer contact conductor is turned over and riveted to fix the inner conductor.
Preferably, the tail end of the inner conductor is connected with the cable conductor in a welding or crimping mode.
Preferably, the front end of the outer contact conductor is also provided with a plastic contact finger placing cap.
The application has the advantages and effects as follows:
1. the front end of the inner conductor is designed into a double-spiral structure, the double-spiral structure comprises a first spiral channel and a second spiral channel, the first spiral channel is connected with an inlet channel of the liquid cooling plastic pipe through a plastic connecting piece, and the second spiral channel is connected with an outlet channel of the liquid cooling plastic pipe; and the contact area between the liquid cooling medium and the large-current conductive terminal is realized, so that the local active heat dissipation capacity of the conductive terminal is increased, and the local temperature rise of the terminal is reduced.
2. According to the invention, through the design of the plastic connecting piece, the bottom of the plastic connecting piece is connected with the inlet channel of the liquid cooling plastic pipe; the top of the plastic connecting piece is provided with a protruding port, and the protruding port is connected with a cooling liquid inlet; the bottom of the external contact conductor is also provided with a cooling liquid inlet; the mode that the coolant liquid import is connected with first helical passage has then realized the one-way entering of coolant liquid to realize the backward flow through the mode of second helical passage, and then realized with the full contact of terminal, the overall process is dispelled the heat.
3. According to the invention, the cable conductor is arranged in the outlet channel of the liquid cooling plastic pipe, so that the heat on the cable conductor is released, and the whole-process heat dissipation of the terminal is realized.
The foregoing description is only an overview of the technical solutions of the present application, so that the technical means of the present application can be clearly understood, and the present application can be implemented according to the content of the description, and the foregoing and other objects, features, and advantages of the present application can be more clearly understood.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a basic design diagram of a charging liquid cooling terminal of an electric vehicle according to the present application;
fig. 2 is an optimized design diagram of a charging liquid cooling terminal of an electric vehicle according to the present application;
fig. 3 is a structural view of an inner conductor of a charging liquid cooling terminal of an electric vehicle according to the present application;
fig. 4 is a structural diagram of an external contact conductor of an electric vehicle charging liquid cooling terminal provided by the present application;
fig. 5 is an optimized design diagram of a second electric vehicle charging liquid cooling terminal provided in the present application;
reference numerals: 1. an inner conductor; 2. an external contact conductor; 3. a cable conductor; 4. a liquid-cooled plastic pipe inlet channel; 5. a liquid-cooled plastic pipe outlet passage; 6. a gap; 7. a first spiral channel; 8. a second spiral channel; 9. a plastic connector; 10. a coolant inlet; 11. a seal ring; 12. the plastic is used for placing the finger-touching cap.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. In the following description, specific details such as specific configurations and components are provided only to facilitate a thorough understanding of embodiments of the present application. Accordingly, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "the embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrase "one embodiment" or "the present embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Further, the present application may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, B exists alone, and A and B exist at the same time, and the term "/and" is used herein to describe another association object relationship, which means that two relationships may exist, for example, A/and B, may mean: a alone, and both a and B alone, and further, the character "/" in this document generally means that the former and latter associated objects are in an "or" relationship.
The term "at least one" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, at least one of a and B, may mean: a exists alone, A and B exist simultaneously, and B exists alone.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion.
Example 1
This embodiment mainly introduces a basic design of a charging liquid cooling terminal of an electric vehicle, please refer to fig. 1.
A liquid cooling terminal for charging an electric automobile comprises an inner conductor 1, an outer contact conductor 2, a cable conductor 3 and a plastic pipe;
the cable conductor 3 is located inside the plastic tube;
the tail end of the inner conductor 1 is connected with a cable conductor 3;
the outer contact conductor 2 is nested outside the inner conductor 1;
the external contact conductor 2 is hermetically connected with an inlet channel 4 of the liquid cooling plastic pipe in the plastic pipe; the design of the external contact conductor is shown in FIG. 4.
Further, a liquid cooling plastic pipe inlet passage 4, a liquid cooling plastic pipe outlet passage 5 and a cable conductor 3 passage are respectively arranged in the plastic pipe;
further, the front end of the inner conductor 1 is of a double-spiral structure, and the double-spiral structure comprises a first spiral channel 7 and a second spiral channel 8; the first spiral channel 7 and the second spiral channel 8 are communicated with each other at the head part of the inner conductor; the inner conductor structure is shown in fig. 3.
The first spiral channel 7 is connected with the inlet channel 4 of the liquid cooling plastic pipe through the external contact conductor 2;
the second spiral passage 8 is connected to the outlet passage 5 of the liquid-cooled plastic pipe.
Further, the tail end of the inner conductor 1 and the cable conductor 3 are connected in a welding or crimping mode.
The front end of the inner conductor is designed into a double-spiral structure, the double-spiral structure comprises a first spiral channel and a second spiral channel, the first spiral channel is connected with an inlet channel of the liquid cooling plastic pipe through an external contact conductor, and the second spiral channel is connected with an outlet channel of the liquid cooling plastic pipe; and the contact area between the liquid cooling medium and the large-current conductive terminal is realized, so that the local active heat dissipation capacity of the conductive terminal is increased, and the local temperature rise of the terminal is reduced.
Example 2
Based on the foregoing embodiment 1, the present embodiment mainly introduces a second design of the liquid cooling terminal for electric vehicle charging, specifically referring to fig. 5, which includes an inner conductor 1, an outer contact conductor 2, a cable conductor 3, and a plastic tube;
the cable conductor 3 is located inside the plastic tube;
the tail end of the inner conductor 1 is connected with a cable conductor 3;
the outer contact conductor 2 is nested outside the inner conductor 1;
the external contact conductor 2 is hermetically connected with a liquid cooling plastic pipe inlet channel 4 in the plastic pipe.
Further, the inside of the plastic pipe is respectively provided with a liquid cooling plastic pipe inlet channel 4 and a liquid cooling plastic pipe outlet channel 5;
the cable conductor 3 is arranged in the liquid-cooled plastic tube outlet passage 5.
Further, a gap 6 is arranged between the outlet channel 5 of the liquid cooling plastic pipe and the cable conductor 3, and the gap 6 is used for flowing a liquid cooling medium.
Further, the front end of the inner conductor 1 is of a double-spiral structure, and the double-spiral structure comprises a first spiral channel 7 and a second spiral channel 8;
the first spiral channel 7 is connected with the inlet channel 4 of the liquid cooling plastic pipe through the outer contact conductor 2;
the second spiral channel 8 is connected with the outlet channel 5 of the liquid cooling plastic pipe.
Furthermore, a cooling liquid inlet 10 is arranged on one side of the outer contact conductor 2; the cooling liquid inlet 10 is connected with the first spiral channel 7; the other side is connected with a plastic connecting piece 9; the other end of the plastic connecting piece 9 is connected with the inlet channel 4 of the liquid cooling plastic pipe.
Further, the tail of the outer contact conductor 2 is turned over and riveted to fix the inner conductor 1.
According to the invention, the cable conductor 3 is arranged in the outlet channel 5 of the liquid cooling plastic pipe, so that the heat on the cable conductor is released, and the whole-process heat dissipation of the terminal is realized.
Example 3
Based on the above embodiments 1-2, the present embodiment mainly introduces an optimized design of a charging liquid cooling terminal of an electric vehicle, and specifically refers to fig. 2.
A liquid cooling terminal for charging an electric automobile comprises an inner conductor 1, an outer contact conductor 2, a cable conductor 3 and a plastic pipe;
the cable conductor 3 is located inside the plastic tube;
the tail end of the inner conductor 1 is connected with a cable conductor 3;
the outer contact conductor 2 is nested outside the inner conductor 1;
the outer contact conductor 2 is connected with the plastic pipe in a sealing way.
Further, the inside of the plastic pipe is respectively provided with a liquid cooling plastic pipe inlet channel 4 and a liquid cooling plastic pipe outlet channel 5;
the cable conductor 3 is arranged in the outlet channel 5 of the liquid-cooled plastic tube.
Further, a gap 6 is arranged between the outlet channel 5 of the liquid cooling plastic pipe and the cable conductor 3, and the gap 6 is used for flowing a liquid cooling medium.
Further, the front end of the inner conductor 1 is of a double-spiral structure, and the double-spiral structure comprises a first spiral channel 7 and a second spiral channel 8;
the first spiral channel 7 is connected with the inlet channel 4 of the liquid cooling plastic pipe through a plastic connecting piece 9;
the second spiral passage 8 is connected to the outlet passage 5 of the liquid-cooled plastic pipe.
Furthermore, a cooling liquid inlet 10 is arranged on one side of the outer contact conductor 2; the coolant inlet 10 is connected to the first spiral channel 7.
Further, the bottom of the plastic connecting piece 9 is connected with the inlet channel 4 of the liquid cooling plastic pipe;
the top of the plastic connecting piece 9 is provided with a protruding port which is connected with a cooling liquid inlet 10.
Furthermore, a sealing ring 11 is arranged between the plastic connecting piece 9 and the outer contact conductor 2.
Further, the tail of the outer contact conductor 2 is turned over and riveted to fix the inner conductor 1.
Further, the tail end of the inner conductor 1 and the cable conductor 3 are connected in a welding or crimping mode.
Furthermore, a plastic contact finger cap 12 is arranged at the front end of the outer contact conductor 2.
According to the invention, through the design of the plastic connecting piece, the bottom of the plastic connecting piece is connected with the inlet channel of the liquid cooling plastic pipe; the top of the plastic connecting piece is provided with a protruding port, and the protruding port is connected with a cooling liquid inlet; the bottom of the external contact conductor is also provided with a cooling liquid inlet; the mode that the coolant liquid import is connected with first helical passage has then realized the one-way entering of coolant liquid to realize the backward flow through the mode of second helical passage, and then realized with the full contact of terminal, the overall process is dispelled the heat.
The above description is only a preferred embodiment of the present invention, and it is not intended to limit the scope of the present invention, and it is obvious to those skilled in the art that various modifications and variations can be made in the present invention. Variations, modifications, substitutions, integrations and parameter changes of the embodiments may be made by the conventional substitutes or the same functions may be performed within the spirit and principle of the invention without departing from the principle and spirit of the invention.
Claims (10)
1. The electric vehicle charging liquid cooling terminal is characterized by comprising an inner conductor (1), an outer contact conductor (2), a cable conductor (3) and a plastic pipe;
the cable conductor (3) is positioned inside the plastic tube;
the tail end of the inner conductor (1) is connected with the cable conductor (3);
the outer contact conductor (2) is nested outside the inner conductor (1);
the outer contact conductor (2) is connected with the plastic pipe in a sealing way.
2. The electric vehicle charging liquid cooling terminal according to claim 1, wherein the plastic pipe is internally provided with a liquid cooling plastic pipe inlet passage (4) and a liquid cooling plastic pipe outlet passage (5);
the cable conductor (3) is arranged in the outlet channel (5) of the liquid cooling plastic pipe.
3. The electric vehicle charging liquid cooling terminal as claimed in claim 2, wherein a gap (6) is further provided between the outlet passage (5) of the liquid cooling plastic pipe and the cable conductor (3), and the gap (6) is used for flowing a liquid cooling medium.
4. The electric vehicle charging liquid cooling terminal according to claim 1, wherein the front end of the inner conductor (1) is of a double-spiral structure, and the double-spiral structure comprises a first spiral channel (7) and a second spiral channel (8);
the first spiral channel (7) is connected with the inlet channel (4) of the liquid cooling plastic pipe through a plastic connecting piece (9);
and the second spiral channel (8) is connected with the outlet channel (5) of the liquid cooling plastic pipe.
5. The electric vehicle charging liquid cooling terminal according to claim 1, wherein a cooling liquid inlet (10) is further provided on one side of the outer contact conductor (2); the cooling liquid inlet (10) is connected with the first spiral channel (7).
6. The electric vehicle charging liquid cooling terminal as claimed in claim 4, wherein the bottom of the plastic connecting member (9) is connected to the inlet passage (4) of the liquid cooling plastic pipe;
and a protruding port is arranged at the top of the plastic connecting piece (9) and is connected with a cooling liquid inlet (10).
7. The electric vehicle charging liquid cooling terminal according to any one of claims 4 or 6, wherein a sealing ring (11) is further disposed between the plastic connector (9) and the outer contact conductor (2).
8. The electric vehicle charging liquid cooling terminal according to any one of claims 1, 5 or 7, wherein the outer contact conductor (2) is fixed to the inner conductor (1) by means of tail riveting.
9. The electric vehicle charging liquid cooling terminal according to claim 8, wherein the tail end of the inner conductor (1) is connected with the cable conductor (3) by welding or crimping.
10. The electric vehicle charging liquid cooling terminal according to any one of claims 1, 5 or 7, wherein the front end of the outer contact conductor (2) is further provided with a plastic contact finger cap (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211022464.3A CN115347394A (en) | 2022-08-25 | 2022-08-25 | Electric automobile charging liquid cooling terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211022464.3A CN115347394A (en) | 2022-08-25 | 2022-08-25 | Electric automobile charging liquid cooling terminal |
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| Publication Number | Publication Date |
|---|---|
| CN115347394A true CN115347394A (en) | 2022-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211022464.3A Pending CN115347394A (en) | 2022-08-25 | 2022-08-25 | Electric automobile charging liquid cooling terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118182184A (en) * | 2024-04-19 | 2024-06-14 | 广东安特信技术有限公司 | Be used for rifle cable department seal structure that charges |
| WO2024149341A1 (en) * | 2023-01-13 | 2024-07-18 | 长春捷翼汽车科技股份有限公司 | Liquid cooled connector |
| CN118457290A (en) * | 2024-05-15 | 2024-08-09 | 广东安特信技术有限公司 | Charging gun with high heat dissipation sealing function |
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2022
- 2022-08-25 CN CN202211022464.3A patent/CN115347394A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024149341A1 (en) * | 2023-01-13 | 2024-07-18 | 长春捷翼汽车科技股份有限公司 | Liquid cooled connector |
| CN118182184A (en) * | 2024-04-19 | 2024-06-14 | 广东安特信技术有限公司 | Be used for rifle cable department seal structure that charges |
| CN118457290A (en) * | 2024-05-15 | 2024-08-09 | 广东安特信技术有限公司 | Charging gun with high heat dissipation sealing function |
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