CN106848666B - Plug terminal, socket terminal and assembly thereof - Google Patents

Plug terminal, socket terminal and assembly thereof Download PDF

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Publication number
CN106848666B
CN106848666B CN201710163886.5A CN201710163886A CN106848666B CN 106848666 B CN106848666 B CN 106848666B CN 201710163886 A CN201710163886 A CN 201710163886A CN 106848666 B CN106848666 B CN 106848666B
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CN
China
Prior art keywords
terminal
inclined surface
plug terminal
base
outer diameter
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CN201710163886.5A
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Chinese (zh)
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CN106848666A (en
Inventor
邓红波
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.)
Kunshan Huihe New Energy Technology Co ltd
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Kunshan Huihe New Energy Technology Co ltd
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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
    • 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
    • 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
    • Y02T90/14—Plug-in electric vehicles

Abstract

A plug terminal comprises a base and a head part formed at the front end of the base, wherein an inclined surface is formed at the joint of the base and the head part, the starting point and the ending point of the inclined surface are not coincident, the front end part of the inclined surface forms a head area, the rear end part of the inclined surface forms a base area, and the outer diameter of the head area is smaller than that of the base area. The application also includes receptacle terminals and terminal assemblies.

Description

Plug terminal, socket terminal and assembly thereof
Technical Field
The present disclosure relates to the field of connectors, and more particularly to a plug terminal, a receptacle terminal, and an assembly thereof.
Background
In some particular fields, the stability requirements for electrical connections are extremely high, such as automotive, aeronautical, etc. The conductive terminals have also been designed with a particularly stable contact structure, as disclosed in U.S. patent 2016/013444A 1, which discloses a terminal structure, wherein a tubular plate is split into a plurality of contact strips, the inner diameter of the contact strips at the middle is smaller than the inner diameter of the rest, and the contact strips are used as contact points for abutting against the abutting terminals inserted therein, as shown in FIG. 2, so that the contact strips combine to form a strong holding force for holding the abutting terminals.
In the electric automobile rifle field that charges, not only require stability high, but also require the insertion force to not too big for the electrical connection, and above-mentioned terminal has satisfied the characteristics that grip is strong, stability is high, but simultaneously the opposite plug force of terminal is also great equally.
Disclosure of Invention
In view of this, it is necessary to provide a plug terminal, a receptacle terminal, and an assembly thereof, which have a strong holding force and high connection stability, while the opposing force of the terminals is small.
In order to solve the technical problem, the application provides a plug terminal, which comprises a base part and a head part formed at the front end of the base part, wherein an inclined surface is formed at the joint of the base part and the head part, the starting point and the ending point of the inclined surface are not coincident, the front end part of the inclined surface forms a head part area, the rear end part of the inclined surface forms a base part area, and the outer diameter of the head part area is smaller than that of the base part area.
Preferably, the inclined surface extends in a spiral manner around the plug terminal in the socket terminal length direction, and the inclined surface extends in a spiral shape at an angle of not more than 360 degrees.
Preferably, the inclined surface spirals around the plug terminal by 360 degrees, and a start point and an end point of the inclined surface are on the same straight line in an extending direction of the plug terminal.
Preferably, a distance between a start point and an end point of the inclined surface is larger than a circumference of the socket terminal cross section.
In order to solve the technical problem, the application also provides a terminal assembly, and further comprises a socket terminal which is inserted with the plug terminal, wherein the socket terminal comprises a first end part, a second end part and a plurality of contact arms which are mutually independent and are connected with the first end part and the second end part, the contact arms are bent to the circle center direction on the same plane to form a plurality of contact points, and when the plug terminal is inserted, the contact points are respectively contacted with the inclined surface at different stages in the insertion process and then are finally contacted with the base area.
Preferably, the inner diameter of the number of contact points is greater than the outer diameter of the head region and less than the outer diameter of the base region.
Preferably, the inner diameters of the contact points are smaller than the inner diameters of the first end and the second end, and the inner diameters of the first end and the second end are larger than the outer diameter of the base region.
In order to solve the technical problem, the application further provides a socket terminal, which comprises a first end part, a second end part and a plurality of contact arms which are mutually independent and connected with the first end part and the second end part, a gap is formed between the contact arms, the contact arms are bent towards the circle center direction to form a plurality of contact points, and the contact points are positioned on different planes in the length direction of the socket terminal.
Preferably, the contact points extend helically in the length direction of the receptacle terminals.
In order to solve the technical problem, the application further provides a terminal assembly, which further comprises a plug terminal, wherein in the process of inserting the plug terminal into the socket terminal, the contact points respectively overcome contact resistance with the plug terminal at different stages of insertion.
Preferably, the inner diameter of the contact point is smaller than the outer diameter of the plug terminal, and the inner diameters of the first end and the second end are larger than the outer diameter of the plug terminal.
According to the plug terminal, the joint of the head part and the base part of the plug terminal is provided with the inclined surface extending spirally, or the contact points of the socket terminal are arranged spirally in the extending direction of the socket terminal, so that the insertion force of the plug terminal is reduced, the holding force and the extraction force are unchanged, and the plug terminal is particularly suitable for the requirements of the field of charging guns.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application.
FIG. 1 is an exploded perspective view of a plug terminal and receptacle terminal of the present application;
fig. 2 is a perspective view of a plug terminal of the present application;
fig. 3 is a perspective view showing an initial state of the plug terminal being inserted into the socket terminal according to the present application;
fig. 4 is a perspective view of the plug terminal of the present application after it is fully inserted into the receptacle terminal.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Example 1:
referring to fig. 1 and 2, a plug terminal 10 of the present application includes a base 11 and a head 12 formed at a front end of the base 11. The outer diameter of the head 12 is smaller than the outer diameter of the base 11, and an inclined surface 13 is formed at the junction of the head 12 and the base 11. The inclined surface 13 extends spirally around the plug terminal 10, and the angle at which the inclined surface 13 extends spirally is not more than 360 degrees. Preferably, the inclined surface 13 spirals around the plug terminal 10 by 360 degrees, that is, the start point 131 and the end point 132 of the inclined surface 13 are on the same straight line 14 in the extending direction of the plug terminal 10, the start point 131 and the end point 132 do not coincide, and preferably, the distance between the start point 131 and the end point 132 of the inclined surface 13 is larger than the circumference of the cross-sectional area of the plug terminal 10. The front end of the inclined surface 13 forms a head region 121, the rear end of the inclined surface 13 forms a base region 111, and the inner diameter of the head region 121 in the radial direction is smaller than the inner diameter of the base region 111 in the radial direction.
The socket terminal 20 includes a first end 21, a second end 22, and a plurality of contact arms 23 connecting the first end 21 and the second end 22 independently of each other. A gap 25 is formed between the contact arms 23, the middle portion of the contact arm 23 (the middle portion is not an absolute middle point) is bent towards the center of the circle to form a contact point 231, and the inner diameter of the contact points 231 is smaller than the inner diameters of the first end portion 21 and the second end portion 22. The inner diameter of the number of contact points 231 is greater than the outer diameter of the head region 121 and less than the outer diameter of the base region 111. The first and second ends 21, 22 have an inner diameter that is greater than the outer diameter of the base region 111. The receptacle terminal 20 is formed by press forming a metal plate material and then crimping to form a cylindrical structure, and forms the engagement space 24.
Referring to fig. 3, when the plug terminal 10 is inserted into the socket terminal 20, due to the spiral inclined surface 13 of the plug terminal 10, the contact points 231 of the socket terminal 20 are respectively abutted against the inclined surface 13 at different stages of insertion, i.e., the contact points 231 are dispersed in time against the reaction force of the inclined surface 13, rather than exerting a overcoming force at the same time, thus reducing the insertion force of the plug terminal 10.
Referring to fig. 4, when the plug terminal 10 is fully inserted into the socket terminal 20, the contact points 231 of the socket terminal 20 are all in contact with the base region 111 against the reaction force of the inclined surface, and at this time, the holding force of the socket terminal 20 against the plug terminal 10 reaches the maximum value, so as to ensure the stability of connection, and the instantaneous force of pulling out the plug terminal 10 is not reduced.
Example 2:
the technical effect as described in embodiment 1 can also be achieved by the design of the contact points 231 of the receptacle terminals 20 in embodiment 2 of the present application. In embodiment 2, the plug terminal 10 has only the base 11 and the head 12, and there is no need to provide an inclined surface at the junction of the head 12 and the base 11. The socket terminal 20 also includes a first end 21, a second end 22, and a plurality of contact arms 23 that connect the first end 21 and the second end 22 independently of each other. A gap 25 is formed between the contact arms 23, the contact arms 23 are bent toward the center of the circle to form contact points 231, and the contact points 231 extend spirally along the length direction of the socket terminal 20. The inner diameters of the contact points 231 are smaller than the inner diameters of the first end 21 and the second end 22. The inner diameter of the plurality of contact points 231 is smaller than the outer diameter of the plug terminal 10. The first and second ends 21, 22 have an inner diameter that is greater than the outer diameter of the plug terminal 10. The receptacle terminal 20 is formed by press forming a metal plate material and then crimping to form a cylindrical structure, and forms the engagement space 24.
In embodiment 2, the contact points 231 of the socket terminal 20 are spirally arranged in the extending direction of the socket terminal 20, so that when the plug terminal 10 is inserted, the contact points 231 respectively overcome the resistance of the plug terminal 10 at different stages, thereby achieving the purpose of reducing the insertion force, and the gripping force after the insertion is unchanged, so that the extraction force is not reduced.
According to the plug terminal, the joint of the head 12 and the base 11 of the plug terminal 10 is provided with the inclined surface 13 extending spirally, or the contact points of the socket terminal 20 are arranged spirally in the extending direction of the socket terminal 20, so that the insertion force of the plug terminal 10 is reduced, the holding force and the extraction force are unchanged, and the plug terminal is particularly suitable for the requirements of the field of charging guns.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (4)

1. A terminal assembly, comprising a plug terminal, wherein the plug terminal comprises a base and a head part formed at the front end of the base, an inclined surface is formed at the joint of the base and the head part, the starting point and the ending point of the inclined surface do not coincide, the front end part of the inclined surface forms a head area, the rear end part of the inclined surface forms a base area, and the outer diameter of the head area is smaller than the outer diameter of the base area; the inclined surface extends around the plug terminal in a spiral manner in the length direction of the plug terminal, the inclined surface spirally bypasses the plug terminal for 360 degrees, and the starting point and the ending point of the inclined surface are positioned on the same straight line in the extending direction of the plug terminal;
the terminal assembly also comprises a socket terminal which is inserted with the plug terminal, the socket terminal comprises a first end part, a second end part and a plurality of contact arms which are mutually independent and are connected with the first end part and the second end part, the contact arms are bent on the same plane towards the circle center to form a plurality of contact points, and when the plug terminal is inserted, the contact points are respectively contacted with the inclined surface at different stages in the insertion process and then finally contacted with the base region;
and gaps are formed among the contact arms.
2. The terminal assembly of claim 1, wherein a distance between a start point and an end point of the inclined surface is greater than a perimeter of the plug terminal cross-section.
3. The terminal assembly of claim 1, wherein an inner diameter of the plurality of contact points is greater than an outer diameter of the head region and less than an outer diameter of the base region.
4. The terminal assembly of claim 1, wherein the plurality of contact points have an inner diameter that is smaller than an inner diameter of the first and second ends, the inner diameters of the first and second ends being greater than an outer diameter of the base region.
CN201710163886.5A 2017-03-18 2017-03-18 Plug terminal, socket terminal and assembly thereof Active CN106848666B (en)

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Application Number Priority Date Filing Date Title
CN201710163886.5A CN106848666B (en) 2017-03-18 2017-03-18 Plug terminal, socket terminal and assembly thereof

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Application Number Priority Date Filing Date Title
CN201710163886.5A CN106848666B (en) 2017-03-18 2017-03-18 Plug terminal, socket terminal and assembly thereof

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CN106848666A CN106848666A (en) 2017-06-13
CN106848666B true CN106848666B (en) 2023-07-14

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110261681A (en) * 2019-07-17 2019-09-20 昆山惠禾新能源科技有限公司 Contact impedance calibrating terminal and contact impedance test method
CN112595371B (en) * 2021-03-02 2021-08-17 成都工百利自动化设备有限公司 Sensing system for working state of handcart type high-voltage circuit breaker contact

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CN102437453A (en) * 2011-08-24 2012-05-02 上海航天科工电器研究院有限公司 Connector contact pair

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Publication number Priority date Publication date Assignee Title
CN201364991Y (en) * 2009-01-22 2009-12-16 比亚迪股份有限公司 Plate-to-plate connector, socket terminal and plug terminal thereof
CN102437453A (en) * 2011-08-24 2012-05-02 上海航天科工电器研究院有限公司 Connector contact pair

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