CN107425323B - Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal - Google Patents

Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal Download PDF

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Publication number
CN107425323B
CN107425323B CN201710751647.1A CN201710751647A CN107425323B CN 107425323 B CN107425323 B CN 107425323B CN 201710751647 A CN201710751647 A CN 201710751647A CN 107425323 B CN107425323 B CN 107425323B
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CN
China
Prior art keywords
plug
cooling liquid
outer sleeve
female terminal
hole
Prior art date
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Active
Application number
CN201710751647.1A
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Chinese (zh)
Other versions
CN107425323A (en
Inventor
周诚智
周和平
邹志平
刘路生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Woer New Energy Electric Technology Co Ltd
Original Assignee
Shenzhen Woer Heat Shrinkable Material Co Ltd
Changzhou Woer Heat Shrinkable Material Co Ltd
Shenzhen Woer New Energy Electric Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Shenzhen Woer Heat Shrinkable Material Co Ltd, Changzhou Woer Heat Shrinkable Material Co Ltd, Shenzhen Woer New Energy Electric Technology Co Ltd filed Critical Shenzhen Woer Heat Shrinkable Material Co Ltd
Priority to CN201710751647.1A priority Critical patent/CN107425323B/en
Publication of CN107425323A publication Critical patent/CN107425323A/en
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Publication of CN107425323B publication Critical patent/CN107425323B/en
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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
    • H01R13/10—Sockets for co-operation with pins or blades
    • 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
    • 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
    • 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

Abstract

A socket for a charging gun, a charging gun and a plug-in female terminal. The invention discloses a plug-in female terminal, which comprises a plug connector and an outer sleeve part. One end of the plug connector facing the plugging direction is inwards provided with a plugging hole, and the other end of the plug connector is inwards provided with a crimping hole. The outer sleeve part is provided with a cooling liquid inlet and a cooling liquid outlet, and the outer sleeve part is sleeved outside one end of the plug-in part, which is provided with the plug-in hole. The both ends of outer cover section of thick bamboo respectively with the surface insulation of plug connector seals, the surface of outer cover section of thick bamboo and plug connector is formed with the coolant liquid and accepts the chamber, the coolant liquid flows into from the coolant liquid entry, flow through the coolant liquid and accept the chamber and flow out through the coolant liquid export, the coolant liquid constantly absorbs the heat of female terminal and takes away this heat at above-mentioned circulation in-process, this temperature that can automatically reduce female terminal, and then can improve the current-carrying capacity who uses this female terminal, guarantee to carry out high-power stability and the reliability of charging.

Description

Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal
Technical Field
The invention relates to the technical field of connectors, in particular to a plug-in female terminal, a charging gun using the female terminal and a socket for the charging gun.
Background
When the charging connector of the electric automobile is used in a power-on mode, due to the skin effect of current, a large amount of heat is generated on the joint surface of the female terminal of the socket and the contact pin of the charging gun, and particularly, the heat is generated more seriously when high-power charging is carried out. This not only shortens the life of charging connector, can also lead to car and charging equipment to damage (like common ablation phenomenon) when serious, threatens even the personal safety of personnel that charges.
Therefore, it is very important to cool the terminal. The main heat dissipation mode of the terminal commonly used in the market at present is passive heat dissipation, and the heat dissipation effect of the mode is limited. In the high-power charging scheme, the common terminal cannot be adapted, the reason includes that the current carrying capacity of the common terminal is poor, the high-power charging requirement cannot be met, and the common terminal cannot seal the cooling liquid after being connected with the liquid cooling cable.
Disclosure of Invention
The invention mainly aims to provide a plug-in female terminal capable of realizing a self cooling function, so that a socket for a charging gun using the plug-in female terminal can be used for high-power charging.
In order to solve the above technical problems, the present invention provides a female terminal for plugging, which includes a plug member and an outer sleeve member. One end of the plug connector is inwards provided with a plug hole, and the other end of the plug connector is inwards provided with a crimping hole. The outer sleeve part is provided with a cooling liquid inlet and a cooling liquid outlet, and the outer sleeve part is sleeved outside one end of the plug-in part, which is provided with the plug-in hole. The both ends of outer cover section of thick bamboo piece are sealed with the surface insulation of plug connector respectively, and the surface of outer cover section of thick bamboo piece and plug connector is formed with the coolant liquid and accepts the chamber, and the coolant liquid is followed coolant liquid entry flows in, flows through the coolant liquid and accepts the chamber and flows out through the coolant liquid export.
Preferably, the middle part of the plug connector is provided with a first step convex ring and a second step convex ring, the first step convex ring and the second step convex ring are sequentially close to one end of the plug connector, which is provided with the plug-in hole, and one end of the outer sleeve part is sealed with the side ring surface of the second step convex ring.
Preferably, the first step convex ring is connected with the outer sleeve piece in a threaded connection or interference fit mode.
Preferably, the end of the plug-in connector with the plug-in hole is provided with a convex ring which protrudes outwards, and the convex ring is connected with one end of the outer sleeve in an insulating and sealing manner.
Preferably, the outer surface of one end of the plug-in unit, which is provided with the plug-in hole, is convexly provided with at least one partition rib, the partition rib divides the cooling liquid accommodating cavity into a plurality of flow channels, adjacent flow channels in the plurality of flow channels are communicated with each other, and the cooling liquid enters from the cooling liquid inlet, passes through the plurality of flow channels and flows out from the cooling liquid outlet.
Preferably, the connector has at least two partition ribs protruding from the outer surface of one end of the connector, where the insertion hole is formed, and extending along the insertion direction, and of the two adjacent partition ribs, one end of one partition rib extends to the first end of the cooling liquid accommodating cavity, the other end of the partition rib and the second end of the cooling liquid accommodating cavity form a channel, one end of the other partition rib extends to the second end of the cooling liquid accommodating cavity, and the other end of the other partition rib and the first end of the cooling liquid accommodating cavity form a channel.
Preferably, the partition ribs are arranged in a spiral shape, and the flow channels formed between the partition ribs are in a spiral shape.
The invention also provides a socket for the charging gun, and the plugging female terminal is arranged in the socket for the charging gun.
The invention also provides a charging gun, wherein the plugging female terminal is arranged in the charging gun.
The plug-in female terminal comprises the plug connector and the outer sleeve part, wherein the outer surfaces of the outer sleeve part and the plug connector are provided with the cooling liquid accommodating cavity, the cooling liquid flows in from the cooling liquid inlet, flows through the cooling liquid accommodating cavity and flows out from the cooling liquid outlet, and the cooling liquid continuously absorbs heat of the female terminal and takes away the heat in the circulation process, so that the temperature of the female terminal can be automatically reduced, the current carrying capacity of the female terminal socket can be improved, and the stability and the reliability of high-power charging are ensured.
Drawings
Fig. 1 is a schematic perspective view of a female terminal according to the present invention;
FIG. 2 is a perspective view of the connector of FIG. 1;
FIG. 3 is a schematic longitudinal cross-sectional view of the plug of FIG. 1;
fig. 4 is a schematic perspective view of the sleeve member outside the female terminal according to the present invention;
fig. 5 is a schematic sectional view of the female plug terminal shown in fig. 1, taken transversely from the coolant inlet and outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, the female terminal of the present invention includes a plug member 10 and an outer sleeve member 20.
The plug-in unit 10 is substantially cylindrical, and has a plug hole 11 formed inward at one end thereof and a crimping hole 12 formed inward at the other end thereof. The crimp hole 12 is used for crimp-receiving a cable conductor (not shown) connected thereto
Referring to fig. 1, 4 and 5, outer sleeve member 20 is generally cylindrical and defines a coolant inlet 21 and a coolant outlet 22. The outer sleeve 20 is disposed outside the end of the plug 10 where the insertion hole 11 is formed. The two ends of the outer sleeve 20 are respectively insulated and sealed with the outer surface of the plug 10, a cooling liquid accommodating cavity 30 is formed on the outer surfaces of the outer sleeve 20 and the plug 10, and cooling liquid flows in from a cooling liquid inlet 21, flows through the cooling liquid accommodating cavity 30 and flows out from a cooling liquid outlet 22.
As a further modification of this embodiment, the middle portion of the plug 10 has a first stepped convex ring 13 and a second stepped convex ring 14. The first step convex ring 13 and the second step convex ring 14 are sequentially close to one end of the plug-in unit 10 with the plug-in hole 11, and one end of the outer sleeve member 20 is sealed with the side ring surface of the second step convex ring 14.
Preferably, the first stepped male ring 13 is screwed or interference-fitted with the outer sleeve member 20.
As a further improvement of this embodiment, the end of the plug-in unit 10 having the end with the plug-in hole 11 is protruded with a protruding ring 15, and the protruding ring 15 is connected with one end of the outer sleeve member 20 in an insulation and sealing manner.
As a further improvement of this embodiment, at least one partition rib 16 protrudes from an outer surface of one end of the plug 10, where the plug hole 11 is formed, the partition rib 16 partitions the cooling liquid accommodating chamber 30 into a plurality of flow passages 31, adjacent ones of the plurality of flow passages 31 are communicated with each other, and the cooling liquid enters from the cooling liquid inlet 21, passes through the plurality of flow passages 31, and then flows out from the cooling liquid outlet 22.
As a further improvement of this embodiment, at least two partition ribs 16 protruding from the outer surface of one end of the plug 10 having the plug hole 11 extend along the plug direction, and of two adjacent partition ribs 16, one end of one partition rib 16 extends to the first end of the accommodating cavity 30, the other end and the second end of the accommodating cavity 30 form a channel 32, one end of the other partition rib 16 extends to the second end of the accommodating cavity 30, and the other end and the first end of the accommodating cavity 30 form a channel 32.
Of course, the partition ribs are not limited to the above arrangement, and any other arrangement capable of forming a communicating flow channel may be adopted, for example, the partition ribs are spirally arranged, and the flow channel formed between the partition ribs is spirally formed.
The invention also provides a socket (not shown) for the charging gun, wherein the plugging female terminal is arranged in the socket for the charging gun.
The invention also provides a charging gun (not shown), and the plugging female terminal is arranged in the charging gun.
In the above description, the female plug terminal of the present invention is only enumerated in the case of being applied to a charging gun socket or a charging gun, and in fact, the female plug terminal can be used in any other occasions where it is necessary to reduce the temperature of the terminal or to increase the current carrying capacity or to increase the power.
In summary, the plug female terminal of the present invention includes the plug member 10 and the outer sleeve member 20, the outer surfaces of the outer sleeve member 20 and the plug member 10 are formed with the cooling liquid receiving cavity 30, the cooling liquid flows in from the cooling liquid inlet 21, flows through the cooling liquid receiving cavity 30 and flows out through the cooling liquid outlet 22, and the cooling liquid continuously absorbs and takes away the heat of the female terminal during the above-mentioned circulation process, which can automatically reduce the temperature of the female terminal, and further can improve the current carrying capacity of the socket using the female terminal, and ensure the stability and reliability of the high power charging.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes, which can be directly or indirectly applied to other related technical fields under the inventive concept of the present invention, are included in the present invention.

Claims (8)

1. The plug-in female terminal is characterized by comprising a plug connector and an outer sleeve part, wherein one end of the plug connector is inwards provided with a plug hole, and the other end of the plug connector is inwards provided with a crimping hole; the outer sleeve part is provided with a cooling liquid inlet and a cooling liquid outlet, the outer sleeve part is sleeved outside one end, provided with a plug hole, of the plug connector, two ends of the outer sleeve part are respectively sealed with the outer surface of the plug connector in an insulating mode, a cooling liquid accommodating cavity is formed on the outer surfaces of the outer sleeve part and the plug connector, cooling liquid flows in from the cooling liquid inlet, flows through the cooling liquid accommodating cavity and flows out from the cooling liquid outlet, and the plug hole is used for being plugged with a contact pin;
the cooling liquid containing cavity is arranged on the peripheral surface of the plug hole, at least one partition rib is convexly extended on the outer surface of one end, provided with the plug hole, of the plug piece, the partition rib divides the cooling liquid containing cavity into a plurality of flow channels, adjacent flow channels in the plurality of flow channels are mutually communicated, and cooling liquid enters from a cooling liquid inlet, flows through the plurality of flow channels and flows out from a cooling liquid outlet so as to cool contact pins in the plug hole.
2. The female plug terminal according to claim 1, wherein the plug member has a first stepped collar and a second stepped collar at a middle portion thereof, the first and second stepped collars being sequentially adjacent to an end of the plug member having the insertion hole, and an end of the outer sleeve member being sealed with a side circumferential surface of the second stepped collar.
3. The female, plug terminal of claim 2, wherein said first stepped collar is threadably or interference connected to said outer sleeve member.
4. The female terminal as claimed in claim 1, wherein a male ring is protruded from the end of the plug member having the end of the plug hole, and the male ring is connected to the end of the outer sleeve member in an insulating and sealing manner.
5. The connector female terminal according to claim 4, wherein at least two of the partition ribs projecting from the outer surface of the end of the connector member provided with the insertion hole extend in the insertion direction, and of the two adjacent partition ribs, one of the partition ribs extends to the first end of the cooling liquid receiving chamber and has a channel formed between the other partition rib and the second end of the cooling liquid receiving chamber, and the other partition rib extends to the second end of the cooling liquid receiving chamber and has a channel formed between the other partition rib and the first end of the cooling liquid receiving chamber.
6. The female, plug terminal of claim 1 wherein said ribs are arranged in a spiral pattern, and wherein flow channels formed between said ribs are formed in a spiral pattern.
7. A socket for a charging gun, characterized in that the female plug-in terminal of any one of claims 1 to 6 is arranged in the socket for the charging gun.
8. A charging gun, characterized in that the female plug-in terminal of any one of claims 1 to 6 is arranged in the charging gun.
CN201710751647.1A 2017-08-28 2017-08-28 Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal Active CN107425323B (en)

Priority Applications (1)

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CN201710751647.1A CN107425323B (en) 2017-08-28 2017-08-28 Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal

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CN201710751647.1A CN107425323B (en) 2017-08-28 2017-08-28 Female terminal of pegging graft and applied rifle, the rifle socket that charges of this female terminal

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CN107425323B true CN107425323B (en) 2022-07-05

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DE102020104168B4 (en) 2020-02-18 2022-01-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft connector device
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