WO2002073752A1 - Electric connector, method of making the electric connector and adaptor in use with the electric connector - Google Patents

Electric connector, method of making the electric connector and adaptor in use with the electric connector Download PDF

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Publication number
WO2002073752A1
WO2002073752A1 PCT/KR2002/000436 KR0200436W WO02073752A1 WO 2002073752 A1 WO2002073752 A1 WO 2002073752A1 KR 0200436 W KR0200436 W KR 0200436W WO 02073752 A1 WO02073752 A1 WO 02073752A1
Authority
WO
WIPO (PCT)
Prior art keywords
male coupling
elastic
electric connector
connecting portion
supporting
Prior art date
Application number
PCT/KR2002/000436
Other languages
French (fr)
Inventor
Jin-Young Choi
Original Assignee
Jin-Young Choi
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.)
Filing date
Publication date
Application filed by Jin-Young Choi filed Critical Jin-Young Choi
Publication of WO2002073752A1 publication Critical patent/WO2002073752A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • 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
    • H01R13/15—Pins, blades or sockets having separate spring member for producing or increasing contact pressure
    • H01R13/187—Pins, blades or sockets having separate spring member for producing or increasing contact pressure with spring member in the socket
    • 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
    • H01R13/11—Resilient sockets
    • H01R13/111—Resilient sockets co-operating with pins having a circular transverse section

Definitions

  • the present invention relates to an electric connector which is electrically connected to an external male coupling portion, a method of making the electric connector and an adaptor in use with the electric connector.
  • the present applicant applied a receptacle for receiving plugs of various shapes used in various countries in the world as disclosed in Korean Laid Open Patent Application No. 2000-63111, which is shown in Figs. 1 through 3.
  • Fig. 1 is a sectional view illustrating a receptacle applied by the present applicant
  • Fig. 2 is a plane view schematically illustrating a jack installed at the receptacle
  • Fig. 3 is a view illustrating the jack.
  • the receptacle includes a case 3, jacks 9 and 10 and a supporting portion 16.
  • the case 3 forms the profile of the receptacle.
  • insertion holes 4 and 5 of a rectangular shape are formed on top of the case 3.
  • the jack 9 and 10 holds a plug terminal 2 inserted through the insertion holes 4 and 5 while being electrically connected thereto. It consists of a plurality of terminal parts 12 having a ring-shaped fixed portion 11, a diagonal portion 12b fixed to the fixed portion 11 and a connecting portion 12a extended to the diagonal portion 12b. Each of the terminal parts 12 is torsion-treated so that the diameter of the upper side is larger than that of the lower side.
  • the connecting portion 12a is bended so that it is radiated in a circular arc as shown in Fig. 2.
  • the supporting portion 16 is bilaterally movable within the case 3 while supporting the jacks 9 and 10. At this supporting portion 16, a fixed supporting rod 18 for fixing the fixed portion and a rotating portion 13 with a fixing groove 14 to which the terminal parts 12 are coupled.
  • the fixing groove 14 is formed larger than the lower end of the terminal part 12 so that the plug terminal 2 can be stretched out along the fixing groove 14 as the terminal part 12 is pushed by the plug terminal 2 when the plug terminal 2 is inserted into the fixing groove 14, or so that the plug terminal 2 can be shrunken when it pass through the fixing groove 14.
  • a restoring spring 15 is elastically supported by one end of the rotating portion 13 to thus apply elasticity to the rotating portion 13 in the direction of shrinking the terminal parts 12.
  • the above-mentioned number of elements for installing the jacks 9 and 10 is needed, this can make it difficult to apply the number of elements to the jacks of other receptacles or adaptors.
  • it is required to perform a punching for molding the fixed portion 11 and the terminal parts 12, a bending of the connecting portion 12a, a torsion- treating of the terminal parts 12 and a molding for rolling the jacks 9 and 10.
  • both punching and bending operations can be performed by a single press by exchanging a punch according to the use of the punching or bending.
  • the torsion-treating requires its dedicated press, it can cost an installation cost.
  • Disclosure of the Invention It is, therefore, an object of the present invention to provide an electric connector which is assembled conveniently without fixing the lower end of terminal parts.
  • an electric connector comprising: a circular upper supporting portion; and a plurality of terminal parts having a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, and an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion, wherein an external male coupling portion inserted via the upper supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
  • a method of making an electric connector comprising the steps of: preparing a conductive plate of a predetermined size; forming a plurality of cantilevers for functioning as terminal parts on the conductive plate; forming an elastic portion by curving each of the cantilevers to be inclined with respect to the surface of the conductive plate; forming a connecting portion of a predetermined length by curving the lower end of the elastic portion formed at each of the cantilevers to be parallel with the conductive plate surface; and rolling the conductive plate so that the elastic portion and the connecting portion can be directed inwardly.
  • the method further comprising the steps of: preparing contact portion of a predetermined shape at the conductive plate and forming the contact portion integral with the conductive plate in the cantilevers forming step; and giving elasticity by curving the contact portion.
  • an adaptor comprising: a case; at least two male coupling portions whose front end are inserted and removed into or from external female coupling portions and are contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a cylindrical supporting portion for insulting and removing the external male coupling portion and are contained in the case to move forwardly and backwardly and a plurality of terminal parts having an elastic portion which has a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion, and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion; a container for surrounding and supporting each of the
  • an electrical connector comprising: a circular lower supporting portion; a plurality of vertical supporting portions which is extended upwardly with one end being fixed to the lower supporting portion; a horizontal supporting portion which is extended horizontally at near the other end of each of the vertical supporting portions; and a plurality of terminal parts, each having an elastic portion with a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion being constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
  • an adaptor comprising: a case; at least two male coupling portions whose each front end is inserted and removed into or from an external female coupling portion and is contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a circular lower supporting portion for inserting or removing the external male coupling portion and is contained in the case to move forwardly and backwardly, a plurality of vertical supporting portions extended upwardly with one end being fixed to the lower supporting portion, a horizontal supporting portion extended horizontally from near the other end of each of the vertical supporting portions and a plurality of terminal parts which has an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion and a connecting portion of a predetermined length and is
  • an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction is formed at the connecting portion, so that the external male coupling portion is engaged with the connecting portion by a surface contact.
  • Fig. 1 is a sectional view illustrating a receptacle applied by the present applicant
  • Fig. 2 is a plane view schematically illustrating a jack installed at the receptacle
  • Fig. 3 is a view illustrating the jack of Fig. 1;
  • Fig. 4 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 1 of the present invention.
  • Fig. 5 is a plane view of Fig. 4;
  • Fig. 6 is a perspective view illustrating another terminal part of the present invention.
  • Fig. 7 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 2 of the present invention.
  • Fig. 8 is a development view of Fig. 7;
  • Fig. 9 is a perspective view separately illustrating an adaptor in use with the electric connector of Fig. 7;
  • Fig. 10 is a perspective view illustrating the electric connector in accordance with a preferred embodiment 3 of the present invention.
  • Fig. 4 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 1 of the present invention
  • Fig. 5 is a plane view of Fig. 4.
  • the electric connector 100 in accordance with embodiment 1 mainly includes an upper supporting portion 110 and a plurality of terminal parts 120.
  • the upper supporting portion 110 serves as a guide portion for guiding an external male coupling portion 130 and is preferably formed in a ring shape.
  • the plurality of terminal parts 120 are electrically connected to the external male coupling portion 130.
  • the terminal parts 120 of a cantilever shape are fixed along the lower circumference of the upper supporting portion 110.
  • Each of the terminal parts 120 is composed of an elastic portion 121 which is inwardly diagonal in the form of the convergence on the center of the upper supporting portion 110 and a connecting portion 123 of a predetermined length downwardly extended from the elastic portion 121.
  • the elastic portion 121 has a direction focused restoring force resistant to the insertion pressure of the male coupling portion 130 which is applied to the sloping side.
  • This elastic springback force functions to hold the male coupling portion 130 inserted into the connecting portion 123.
  • the terminal part 120 can be formed integral with the upper supporting portion 110 by pressing, or each of pressed terminal parts 120 can be fixed to the upper supporting portion 110 by soldering. On the cross section of the thusly pressed terminal part 120, a burr is typically formed.
  • a burr is typically formed on the cross section of the thusly pressed terminal part 120.
  • each of the terminal parts 120 has a non- contact portion 125 which is extended from the bottom of the connecting portion 123 and is outwardly diagonal in the form of the divergence from the center of the upper supporting portion 110.
  • the reason thereof is because the blade type or straight type external male coupling portion is always contacted with the vertical plane of the connecting portion 123, for thereby preventing the bottom of the connecting portion 123 from being refracted or lifted when the external male coupling portion passes through even if the front end of the external male coupling portion was positioned below the lower end of the connecting portion 123. Consequently, in case of not forming the connecting portion 123, it is preferable that the connecting portion 123 has such a length that the front end of the external male coupling portion 130 cannot be positioned down to the lowest end of the connecting portion 123.
  • the elastic portion 121, the connecting portion 123, the inclined plane 123a and the non-contact portion 125 are molded at the same time by bending.
  • Fig. 7 is a perspective view illustrating in accordance with the second embodiment of the present invention.
  • the electric connector 200 of this embodiment is similar to the above-described electric connector 100. But the electric connector 200 is different from the electric connector 100 in that the plurality of terminal parts 120 are installed at a cylindrical supporting unit 210 and a contact portion 230 for receiving a power is installed at the lower end of the cylindrical supporting portion 210.
  • Fig. 8 is a development view of Fig. 7. As shown in Fig. 8, in the method of making the electric connector in accordance with this second embodiment, firstly, a conductive plate 210a is prepared.
  • the prepared conductive plate 210a On the prepared conductive plate 210a, a plurality of cantilevers capable of functioning as terminal parts 120 are formed. That is, the prepared conductive plate 210a is installed at a press die. As shown in Fig. 8, three surfaces excepting the top surface of the conductive plate 210a are cut out or cut off and are then punched so that the cantilevers are formed at a predetermined interval. In this embodiment, the number of terminal parts 120 is eight.
  • each of the cantilevers is curved to be inclined with respect to the surface of the conductive plate 210a, thereby forming an elastic portion 121. That is, the elastic portion 121 is bent downwardly of the conductive plate 210a when two dotted lines (section of reference numeral 121) as shown in Fig. 8 are pressed by a punch or the like, preferably, the curved portion of the upper end is formed slightly downwardly from the fixed end of the cantilever in order to improve the resistance to fatigue.
  • each of the cantilevers is curved to be substantially parallel with the surface of the conductive plate 210a, for thereby forming a connecting portion 123 of a predetermined length at the lower end of the elastic portion 121. Consequently, the above-mentioned terminal part 120 is formed at each of the cantilevers.
  • the conductive plate 210a is molded in a cylindrical shape so that the elastic portion 121 and the connecting portion 123 are faced inwardly.
  • the thusly molded cylindrical supporting portion 210 together with the plurality of terminal parts 120 is similar to a sand glass in shape.
  • terminal parts each having a separately manufactured diagonal portion and connecting portion are fixed by soldering and then are molded in a cylindrical shape.
  • a contact portion 230 having a predetermined shape can be installed at the conductive plate 210a in any of the above-described steps. Preferably, it is formed integral with the conductive plate 210a at the step of preparing the conductive plate 210a or the step of forming cantilevers. As shown in Fig. 8, the contact portion 230 is fixed at the lower end of the conductive plate 210a in the shape of a spoon.
  • the contact portion formed integral with the conductive plate 210a formed in a cylindrical shape is curved to thus complete the electric connector 200 as shown in Fig. 8.
  • the contact portion 230 is formed in two stages so that it can exhibit the elasticity efficiently.
  • the conductive plate 210a, the contact portion 230 and the cantilevers can be formed integrally by punching them simultaneously.
  • the terminal parts 120 can be formed by bending them simultaneously.
  • Fig. 9 is a perspective view separately illustrating an adaptor in use with the electric connector of Fig. 7.
  • the adaptor 300 according to this embodiment includes cases 310a and 310b, male coupling portions 320a and 320b, deviation preventing members 330a and 330b, female coupling portions 200a and
  • the cases 310 and 310b forms the profile of the adaptor of this embodiment and each of them includes an upper case 310a and a lower case 310b.
  • the upper and lower cases 310a and 310b are engaged by a bolt and a nut in general.
  • long holes 311a and 31 lb of a rectangular shape are formed so that they can contain the male coupling portion 320a and 320b with a certain part of the front end being extruded.
  • long holes 313a and 313b of a rectangular shape into which or from which the external male coupling portions can be inserted or removed.
  • a non-extruded portion of the male coupling portions 320a and 320b is contained in the cases 310a and 310b so that each of the male coupling portions 320a and 320b can be moved within a predetermined range, i.e., as long as the bilateral length of the long holes 311a and 311b. And, to prevent the male coupling portions from being deviated from the cases 310a and 310b, the deviation preventing members 330a and 330b are installed at the male coupling portions 320a and 320b.
  • Latching jaws 331a and 331b of the deviation preventing members 330a and 330b are mounted between deviation preventing jaws 315 formed on the upper and lower surfaces of the case 310, for thereby making the deviation preventing members 330a and 330b movable laterally but not longitudinally.
  • the male coupling portion of the blade type or straight type (refer to Fig. 9)
  • the latching jaws 331a and 331b are manufactured in a circular shape so that the rotation is easily performed.
  • the female coupling portions 200a and 200b each consists of a plurality of terminal parts 120 each having a cylindrical supporting portion 210 into or from which the external male coupling portion is inserted or removed, an elastic portion 121 with an elastic springback force and a connecting portion 123 holding the inserted external male coupling portion.
  • the inclined plane 123 a bent in the longitudinal direction by bending may be formed at the connecting portion 123 and the non-contact portion 125 may be formed at the lower end of the connecting portion 123. The reason thereof is as described in Embodiments 1 and 2.
  • the containers 350a and 350b are moved bilaterally in a state that they are completely contained in the cases 310a and 310b while maintaining the form of the female coupling portions 200a and 200b.
  • the bilateral travel length of the female coupling portions 200a and 200b is restricted by an inner wall 317 and latching jaw 319 of the cases 310a and 310b. Meanwhile, the contact portions 230a and 230b are fixed at the lower end of the cylindrical supporting portion 210 so that the male coupling portions 320a and
  • an electric connector 400 as shown in Fig. 10.
  • Fig. 10 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 3 of the present invention
  • Fig. 11 is a development view of Fig. 10.
  • the electric connector 400 in accordance with this embodiment 3 includes a circular lower supporting portion 410, a plurality of vertical supporting portions 420 being extended upwardly with one end being fixed to the lower supporting portion 410, a horizontal supporting portion 430 extended horizontally from near the other end of each of the vertical supporting portions 420 and a plurality of terminal parts 440, each having an elastic portion 441 with direction focused restoring force which is extended downwardly with one end being fixed to the horizontal supporting portion 430 without torsion and a connecting portion 443 of a predetermined length which is extended downwardly from the other end of the elastic portion 441.
  • a contact portion 450 can be installed at the lower end of the lower supporting portion 410.
  • the elastic portion 441 includes a first elastic surface 441a inclined at 10 to
  • the second elastic surface 441b receives an insertion pressure of the external male coupling portion.
  • the first elastic surface 441a shares the insertion pressure applied to the second elastic surface 441b while maintaining the elastic springback force of the second elastic surface 441b and transfers it to the horizontal supporting portion 430 and the vertical supporting portion 410, respectively.
  • the plurality of terminal parts 440 of this embodiment have a structure of being connected to the lower supporting portion 410 via the horizontal supporting portion 430 and the vertical supporting portion 420. That is, when the external male coupling portion 130 is inserted via the terminal part 4410, more preferably, each of the elastic portions 441, the elastic portions 441 each are stretched out by the insertion pressure of the external male coupling portion 441. At this time, on the other hand, the upper part of the vertical supporting portion 442 is shrunken inwardly. Thus, the insertion pressure of the external male coupling portion 130 is distributed to the terminal parts 440, horizontal supporting portion 430 and vertical supporting portion 440, for thereby improving the durability to the fatigue of the terminal parts 440.
  • an inclined plane 123a bent at a predetermined angle with respect to the center of the longitudinal direction or a non-contact portion 125 may be formed at the connecting portion 443.
  • the adaptor 500 in accordance with this embodiment 3 is almost similar to the adaptor 400 of the above embodiment 2 from viewpoint of a structure and functions.
  • the adaptor 500 is different from the adaptor 400 in that the female coupling portions 400a and 400b of the above electric connector 400 are contained in the containers 350a and 350b respectively.
  • the electric connector, method of making the electric connector and the adaptor in use with the electric connector as explained above has the following advantages.
  • the terminal parts are formed inside the upper supporting portion.
  • the structure of supporting only the upper supporting portion the volume of a receptacle is reduced for thereby improving productivity and reducing production cost.
  • the external male coupling portion of the straight type is engaged with the connecting portion by a surface contact, for thereby making the circular external male coupling portion inserted into the connecting portion.
  • the cylindrical supporting portion is formed by punching and bending, it is possible to perform the operations using one press, thereby improving the economic efficiency and productivity.
  • the contact portion supplying a power is formed integral with the cylindrical supporting portion for thereby improving the productivity.
  • the insertion pressure of the external male coupling portion is distributed to the terminal parts, the horizontal supporting portion and the vertical supporting portion, for thereby preventing fatigue damage of the terminal part.
  • the above electric connector can be used for a general purpose regardless of the profile, interval and arrangement of the external male coupling portion or the external female coupling portion.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The present invention relates to an electric connector which is electrically connected to an external male coupling portion, method of making the electric connector and adaptor in use with the electric connector. The electric connector, comprising a circular upper supporting portion; and a plurality of terminal parts having a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, and an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion, wherein an external male coupling portion inserted via the upper supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.

Description

ELECTRIC CONNECTOR, METHOD OF MAKING THE ELECTRIC CONNECTORAND ADAPTORIN USE WITH THE ELECTRIC
CONNECTOR
BACKGROUND OF THE INVENTION
Technical Field
The present invention relates to an electric connector which is electrically connected to an external male coupling portion, a method of making the electric connector and an adaptor in use with the electric connector.
Background Art
Generally, in many countries in the world, electric plugs and receptacles of different shapes are being used in different countries. A related electric plug that will mate properly with an electric receptacle of a first configuration will not in general mate properly with an electric receptacle of a second configuration that is substantially different from the first.
To solve the above problem, the present applicant applied a receptacle for receiving plugs of various shapes used in various countries in the world as disclosed in Korean Laid Open Patent Application No. 2000-63111, which is shown in Figs. 1 through 3.
Fig. 1 is a sectional view illustrating a receptacle applied by the present applicant; Fig. 2 is a plane view schematically illustrating a jack installed at the receptacle; and Fig. 3 is a view illustrating the jack. As shown in Figs. 1 through 3, the receptacle includes a case 3, jacks 9 and 10 and a supporting portion 16. The case 3 forms the profile of the receptacle. On top of the case 3, insertion holes 4 and 5 of a rectangular shape are formed.
The jack 9 and 10 holds a plug terminal 2 inserted through the insertion holes 4 and 5 while being electrically connected thereto. It consists of a plurality of terminal parts 12 having a ring-shaped fixed portion 11, a diagonal portion 12b fixed to the fixed portion 11 and a connecting portion 12a extended to the diagonal portion 12b. Each of the terminal parts 12 is torsion-treated so that the diameter of the upper side is larger than that of the lower side. The connecting portion 12a is bended so that it is radiated in a circular arc as shown in Fig. 2. The supporting portion 16 is bilaterally movable within the case 3 while supporting the jacks 9 and 10. At this supporting portion 16, a fixed supporting rod 18 for fixing the fixed portion and a rotating portion 13 with a fixing groove 14 to which the terminal parts 12 are coupled.
The fixing groove 14 is formed larger than the lower end of the terminal part 12 so that the plug terminal 2 can be stretched out along the fixing groove 14 as the terminal part 12 is pushed by the plug terminal 2 when the plug terminal 2 is inserted into the fixing groove 14, or so that the plug terminal 2 can be shrunken when it pass through the fixing groove 14. A restoring spring 15 is elastically supported by one end of the rotating portion 13 to thus apply elasticity to the rotating portion 13 in the direction of shrinking the terminal parts 12.
However, in the above-mentioned receptacle, because the lower end of the terminal part 12 is torsion-treated, it is formed outside the circle of the fixed portion 11. Thus, because the rotating portion 13 is needed, which has the fixed supporting rod 18 for fixing the fixed portion to install the jacks 9 and 10 and the fixing groove 14 for fixing the lower end of each of the terminal parts 12 to maintain the elastic springback force, this can increase the number of elements and the number of assembly processes.
Further, because the restoring spring 15 for restoring the rotating portion 13 and the fixed portion 16 for fixing the rotating portion and the fixed supporting rod 18 are needed, this can make the assembly complicated and can occupy a large space for thereby increasing the size of the case 3.
Moreover, the above-mentioned number of elements for installing the jacks 9 and 10 is needed, this can make it difficult to apply the number of elements to the jacks of other receptacles or adaptors. Meanwhile, in the case of performing press-finishing in order to manufacture the jacks 9 and 10, it is required to perform a punching for molding the fixed portion 11 and the terminal parts 12, a bending of the connecting portion 12a, a torsion- treating of the terminal parts 12 and a molding for rolling the jacks 9 and 10. However, regarding the bending and torsion-treating, both punching and bending operations can be performed by a single press by exchanging a punch according to the use of the punching or bending. However, because the torsion-treating requires its dedicated press, it can cost an installation cost.
Disclosure of the Invention It is, therefore, an object of the present invention to provide an electric connector which is assembled conveniently without fixing the lower end of terminal parts.
It is another object of the present invention to provide a method of making an electric connector and an adaptor in use with the electric connector which is easy to perform elastic finishing and can reduce a number of manufacturing steps by applying elasticity to terminal parts by bending.
It is yet another object of the present invention to provide an electric connector and an adaptor in use with the electric connector which can distribute an insertion pressure applied to terminal parts. To achieve the above object, there is provided an electric connector, comprising: a circular upper supporting portion; and a plurality of terminal parts having a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, and an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion, wherein an external male coupling portion inserted via the upper supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
In another aspect of the present invention, there is provided a method of making an electric connector, comprising the steps of: preparing a conductive plate of a predetermined size; forming a plurality of cantilevers for functioning as terminal parts on the conductive plate; forming an elastic portion by curving each of the cantilevers to be inclined with respect to the surface of the conductive plate; forming a connecting portion of a predetermined length by curving the lower end of the elastic portion formed at each of the cantilevers to be parallel with the conductive plate surface; and rolling the conductive plate so that the elastic portion and the connecting portion can be directed inwardly.
The method further comprising the steps of: preparing contact portion of a predetermined shape at the conductive plate and forming the contact portion integral with the conductive plate in the cantilevers forming step; and giving elasticity by curving the contact portion.
In yet another aspect of the present invention, there is provided an adaptor, comprising: a case; at least two male coupling portions whose front end are inserted and removed into or from external female coupling portions and are contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a cylindrical supporting portion for insulting and removing the external male coupling portion and are contained in the case to move forwardly and backwardly and a plurality of terminal parts having an elastic portion which has a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion, and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion; a container for surrounding and supporting each of the female coupling portion; and a contact portion, installed at one end of the cylindrical supporting portion, for electrically connecting the male coupling portion and the female coupling portion by an elastic contact as they the male coupling portion and the female coupling portion are moved smoothly with respect to each other.
In further another aspect of the present invention, there is provided an electrical connector, comprising: a circular lower supporting portion; a plurality of vertical supporting portions which is extended upwardly with one end being fixed to the lower supporting portion; a horizontal supporting portion which is extended horizontally at near the other end of each of the vertical supporting portions; and a plurality of terminal parts, each having an elastic portion with a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion being constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
Here, a contact portion is installed at the lower supporting portion. In further another aspect of the present invention, there is provided an adaptor, comprising: a case; at least two male coupling portions whose each front end is inserted and removed into or from an external female coupling portion and is contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a circular lower supporting portion for inserting or removing the external male coupling portion and is contained in the case to move forwardly and backwardly, a plurality of vertical supporting portions extended upwardly with one end being fixed to the lower supporting portion, a horizontal supporting portion extended horizontally from near the other end of each of the vertical supporting portions and a plurality of terminal parts which has an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion; a container for surrounding and supporting each of the female coupling portions; and a contact portion, installed at one end of the cylindrical supporting portion, for electrically connecting the male coupling portion and the female coupling portion by an elastic contact as they are moved smoothly with respect to each other.
Here, an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction is formed at the connecting portion, so that the external male coupling portion is engaged with the connecting portion by a surface contact.
Brief Description of the Drawings
The above objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
Fig. 1 is a sectional view illustrating a receptacle applied by the present applicant;
Fig. 2 is a plane view schematically illustrating a jack installed at the receptacle;
Fig. 3 is a view illustrating the jack of Fig. 1;
Fig. 4 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 1 of the present invention;
Fig. 5 is a plane view of Fig. 4; Fig. 6 is a perspective view illustrating another terminal part of the present invention;
Fig. 7 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 2 of the present invention;
Fig. 8 is a development view of Fig. 7; Fig. 9 is a perspective view separately illustrating an adaptor in use with the electric connector of Fig. 7;
Fig. 10 is a perspective view illustrating the electric connector in accordance with a preferred embodiment 3 of the present invention;
Fig. 11 is a development of Fig. 10; and Fig. 12 is a perspective view separately illustrating an adaptor in use with the electric connector of Fig. 10.
Best Mode for Carrying out the Invention
Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.
Embodiment 1
Fig. 4 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 1 of the present invention; and Fig. 5 is a plane view of Fig. 4. As shown in Figs. 4 and 5, the electric connector 100 in accordance with embodiment 1 mainly includes an upper supporting portion 110 and a plurality of terminal parts 120.
The upper supporting portion 110 serves as a guide portion for guiding an external male coupling portion 130 and is preferably formed in a ring shape. The plurality of terminal parts 120 are electrically connected to the external male coupling portion 130. The terminal parts 120 of a cantilever shape are fixed along the lower circumference of the upper supporting portion 110. Each of the terminal parts 120 is composed of an elastic portion 121 which is inwardly diagonal in the form of the convergence on the center of the upper supporting portion 110 and a connecting portion 123 of a predetermined length downwardly extended from the elastic portion 121. The elastic portion 121 has a direction focused restoring force resistant to the insertion pressure of the male coupling portion 130 which is applied to the sloping side. This elastic springback force functions to hold the male coupling portion 130 inserted into the connecting portion 123. Meanwhile, the terminal part 120 can be formed integral with the upper supporting portion 110 by pressing, or each of pressed terminal parts 120 can be fixed to the upper supporting portion 110 by soldering. On the cross section of the thusly pressed terminal part 120, a burr is typically formed. Thus, when the external male coupling portion of a blade type or straight type is contacted to the cross section of the connecting portion 123, a scratch is generated on the surface of the straight type external male coupling portion 123. When an excessive friction occurs, the connecting portion 123 can be also refracted or lifted as the straight type external male coupling portion passes through the connecting portion 123. To avoid this, as shown in Fig. 6, it is preferable that inclined planes 123a are formed at both sides of the connecting portion 123 in the longitudinal direction.
In addition, it is preferable that each of the terminal parts 120 has a non- contact portion 125 which is extended from the bottom of the connecting portion 123 and is outwardly diagonal in the form of the divergence from the center of the upper supporting portion 110. The reason thereof is because the blade type or straight type external male coupling portion is always contacted with the vertical plane of the connecting portion 123, for thereby preventing the bottom of the connecting portion 123 from being refracted or lifted when the external male coupling portion passes through even if the front end of the external male coupling portion was positioned below the lower end of the connecting portion 123. Consequently, in case of not forming the connecting portion 123, it is preferable that the connecting portion 123 has such a length that the front end of the external male coupling portion 130 cannot be positioned down to the lowest end of the connecting portion 123.
In the above-described embodiment 1, preferably, the elastic portion 121, the connecting portion 123, the inclined plane 123a and the non-contact portion 125 are molded at the same time by bending.
Embodiment 2
To supply a power to the electric connector 100 of the above-described embodiment 1, it is necessary to directly connect a wire to the electric connector 100, which may cause the electric connector not to function properly. To solve this problem, there is provided an electric connector 200 as shown in Fig. 7.
Fig. 7 is a perspective view illustrating in accordance with the second embodiment of the present invention. As shown in Fig. 7, the electric connector 200 of this embodiment is similar to the above-described electric connector 100. But the electric connector 200 is different from the electric connector 100 in that the plurality of terminal parts 120 are installed at a cylindrical supporting unit 210 and a contact portion 230 for receiving a power is installed at the lower end of the cylindrical supporting portion 210.
Hereinafter, a method of making the electric connector of the above second embodiment will now be described. In the following description, same drawing reference numerals are used for the same elements even in different drawings and a detailed description thereof will be omitted.
Fig. 8 is a development view of Fig. 7. As shown in Fig. 8, in the method of making the electric connector in accordance with this second embodiment, firstly, a conductive plate 210a is prepared.
On the prepared conductive plate 210a, a plurality of cantilevers capable of functioning as terminal parts 120 are formed. That is, the prepared conductive plate 210a is installed at a press die. As shown in Fig. 8, three surfaces excepting the top surface of the conductive plate 210a are cut out or cut off and are then punched so that the cantilevers are formed at a predetermined interval. In this embodiment, the number of terminal parts 120 is eight.
Next, each of the cantilevers is curved to be inclined with respect to the surface of the conductive plate 210a, thereby forming an elastic portion 121. That is, the elastic portion 121 is bent downwardly of the conductive plate 210a when two dotted lines (section of reference numeral 121) as shown in Fig. 8 are pressed by a punch or the like, preferably, the curved portion of the upper end is formed slightly downwardly from the fixed end of the cantilever in order to improve the resistance to fatigue.
After forming the elastic portion 121 at each of the cantilevers, each of the cantilevers is curved to be substantially parallel with the surface of the conductive plate 210a, for thereby forming a connecting portion 123 of a predetermined length at the lower end of the elastic portion 121. Consequently, the above-mentioned terminal part 120 is formed at each of the cantilevers.
Further, in case of forming a non-contact portion at the terminal part 120, this can be achieved after or simultaneously with the curving of the connecting portion 123.
Moreover, in case of forming the inclined portion 123a at the connecting portion 123 as described above, this can be achieved simultaneously with the curving of the connecting portion 123, or after or simultaneously with the curving of the non- contact portion 125.
Once the terminal parts 120 are formed, the conductive plate 210a is molded in a cylindrical shape so that the elastic portion 121 and the connecting portion 123 are faced inwardly. The thusly molded cylindrical supporting portion 210 together with the plurality of terminal parts 120 is similar to a sand glass in shape. In addition, terminal parts each having a separately manufactured diagonal portion and connecting portion are fixed by soldering and then are molded in a cylindrical shape.
Meanwhile, a contact portion 230 having a predetermined shape can be installed at the conductive plate 210a in any of the above-described steps. Preferably, it is formed integral with the conductive plate 210a at the step of preparing the conductive plate 210a or the step of forming cantilevers. As shown in Fig. 8, the contact portion 230 is fixed at the lower end of the conductive plate 210a in the shape of a spoon.
Finally, the contact portion formed integral with the conductive plate 210a formed in a cylindrical shape is curved to thus complete the electric connector 200 as shown in Fig. 8. Preferably, the contact portion 230 is formed in two stages so that it can exhibit the elasticity efficiently.
The above-described sequence of processing is temporary. For instance, the conductive plate 210a, the contact portion 230 and the cantilevers can be formed integrally by punching them simultaneously. Also, the terminal parts 120 can be formed by bending them simultaneously. Hereinafter, an adaptor in used with the electric connector 200 made according to the above method will now be described with reference to the accompanying drawings.
Fig. 9 is a perspective view separately illustrating an adaptor in use with the electric connector of Fig. 7. As shown in Fig. 9, the adaptor 300 according to this embodiment includes cases 310a and 310b, male coupling portions 320a and 320b, deviation preventing members 330a and 330b, female coupling portions 200a and
200b, containers 350a and 350b and contact portions 230a and 230b.
The cases 310 and 310b forms the profile of the adaptor of this embodiment and each of them includes an upper case 310a and a lower case 310b. The upper and lower cases 310a and 310b are engaged by a bolt and a nut in general.
On the rear surface of the cases 310a and 310b, long holes 311a and 31 lb of a rectangular shape are formed so that they can contain the male coupling portion 320a and 320b with a certain part of the front end being extruded. On the front surface of the cases 310a and 310b, there are formed long holes 313a and 313b of a rectangular shape into which or from which the external male coupling portions can be inserted or removed.
A non-extruded portion of the male coupling portions 320a and 320b is contained in the cases 310a and 310b so that each of the male coupling portions 320a and 320b can be moved within a predetermined range, i.e., as long as the bilateral length of the long holes 311a and 311b. And, to prevent the male coupling portions from being deviated from the cases 310a and 310b, the deviation preventing members 330a and 330b are installed at the male coupling portions 320a and 320b.
Latching jaws 331a and 331b of the deviation preventing members 330a and 330b are mounted between deviation preventing jaws 315 formed on the upper and lower surfaces of the case 310, for thereby making the deviation preventing members 330a and 330b movable laterally but not longitudinally. In case of the male coupling portion of the blade type or straight type (refer to Fig. 9), it has to be rotated so that the direction of a blade can be controlled arbitrarily. Thus, it is preferable that the latching jaws 331a and 331b are manufactured in a circular shape so that the rotation is easily performed.
The female coupling portions 200a and 200b each consists of a plurality of terminal parts 120 each having a cylindrical supporting portion 210 into or from which the external male coupling portion is inserted or removed, an elastic portion 121 with an elastic springback force and a connecting portion 123 holding the inserted external male coupling portion. In addition, the inclined plane 123 a bent in the longitudinal direction by bending may be formed at the connecting portion 123 and the non-contact portion 125 may be formed at the lower end of the connecting portion 123. The reason thereof is as described in Embodiments 1 and 2. The containers 350a and 350b are moved bilaterally in a state that they are completely contained in the cases 310a and 310b while maintaining the form of the female coupling portions 200a and 200b. Unlike the male coupling portions 320a and 320b, the bilateral travel length of the female coupling portions 200a and 200b is restricted by an inner wall 317 and latching jaw 319 of the cases 310a and 310b. Meanwhile, the contact portions 230a and 230b are fixed at the lower end of the cylindrical supporting portion 210 so that the male coupling portions 320a and
320b and the female coupling portions 200a and 200b can be moved laterally smoothly with respect to each other while electrically connecting the male coupling portions 320a and 320b and the female coupling portions 200a and 200b. Embodiment 3
In Embodiments 1 and 2, the elastic springback force of the terminal parts
120 occurs at a curved fixed end structurally. Thus, by inserting and removing the external male coupling portion repetitively, fatigue is accumulated at the curved fixed end portion for thereby losing or damaging the elastic function. To solve this problem, there is provided an electric connector 400 as shown in Fig. 10.
Fig. 10 is a perspective view illustrating an electric connector in accordance with a preferred embodiment 3 of the present invention; and Fig. 11 is a development view of Fig. 10. As shown in Figs. 10 and 11, the electric connector 400 in accordance with this embodiment 3 includes a circular lower supporting portion 410, a plurality of vertical supporting portions 420 being extended upwardly with one end being fixed to the lower supporting portion 410, a horizontal supporting portion 430 extended horizontally from near the other end of each of the vertical supporting portions 420 and a plurality of terminal parts 440, each having an elastic portion 441 with direction focused restoring force which is extended downwardly with one end being fixed to the horizontal supporting portion 430 without torsion and a connecting portion 443 of a predetermined length which is extended downwardly from the other end of the elastic portion 441. In addition, like the above-described Embodiment 2, a contact portion 450 can be installed at the lower end of the lower supporting portion 410.
The elastic portion 441 includes a first elastic surface 441a inclined at 10 to
20 degrees, preferably, 15 degrees, with respect to the vertical supporting portion 410 and a second elastic surface 441b inclined at 30 to 40 degrees, preferably, 35 degrees.
The second elastic surface 441b receives an insertion pressure of the external male coupling portion. The first elastic surface 441a shares the insertion pressure applied to the second elastic surface 441b while maintaining the elastic springback force of the second elastic surface 441b and transfers it to the horizontal supporting portion 430 and the vertical supporting portion 410, respectively.
In the above-described construction, the plurality of terminal parts 440 of this embodiment have a structure of being connected to the lower supporting portion 410 via the horizontal supporting portion 430 and the vertical supporting portion 420. That is, when the external male coupling portion 130 is inserted via the terminal part 4410, more preferably, each of the elastic portions 441, the elastic portions 441 each are stretched out by the insertion pressure of the external male coupling portion 441. At this time, on the other hand, the upper part of the vertical supporting portion 442 is shrunken inwardly. Thus, the insertion pressure of the external male coupling portion 130 is distributed to the terminal parts 440, horizontal supporting portion 430 and vertical supporting portion 440, for thereby improving the durability to the fatigue of the terminal parts 440. By the same reason as described in the above Embodiments 1 and 2, an inclined plane 123a bent at a predetermined angle with respect to the center of the longitudinal direction or a non-contact portion 125 may be formed at the connecting portion 443.
Hereinafter, the adaptor 500 in use with the electric connector 400 of the above embodiment 3 will now be described with reference to the accompanying drawings.
As shown in Fig. 12, the adaptor 500 in accordance with this embodiment 3 is almost similar to the adaptor 400 of the above embodiment 2 from viewpoint of a structure and functions. However, the adaptor 500 is different from the adaptor 400 in that the female coupling portions 400a and 400b of the above electric connector 400 are contained in the containers 350a and 350b respectively.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Industrial Applicability
The electric connector, method of making the electric connector and the adaptor in use with the electric connector as explained above has the following advantages.
Firstly, by forming an elastic portion having direction focused restoring force at a circular upper supporting portion and a plurality of terminal parts having a connecting portion by bending, the terminal parts are formed inside the upper supporting portion. Thus, by the structure of supporting only the upper supporting portion, the volume of a receptacle is reduced for thereby improving productivity and reducing production cost.
Second, since the installation structure is simple, it is easy to apply it to another receptacle or adaptor.
Third, by forming a non-contact portion at the lower end of the connecting portion, it is possible to prevent the terminal parts from being lifted for the purpose of a stable use when the external male coupling portion is removed.
Fourth, by forming the inclined plane bent with respect to the center of the longitudinal direction of the connecting portion, the external male coupling portion of the straight type is engaged with the connecting portion by a surface contact, for thereby making the circular external male coupling portion inserted into the connecting portion.
Fifth, since the cylindrical supporting portion is formed by punching and bending, it is possible to perform the operations using one press, thereby improving the economic efficiency and productivity. Sixth, the contact portion supplying a power is formed integral with the cylindrical supporting portion for thereby improving the productivity.
Seventh, by utilizing the electric connector made according to the above method to the adaptor, it is possible to supply a power stably since the male coupling portion and the female coupling portion are moved smoothly with respect to each other.
Eighth, by connecting the terminal parts to the vertical supporting portion installed at the lower supporting portion via the horizontal supporting portion, the insertion pressure of the external male coupling portion is distributed to the terminal parts, the horizontal supporting portion and the vertical supporting portion, for thereby preventing fatigue damage of the terminal part.
Ninth, since the male coupling portion and the female coupling portion are moved bilaterally and the male coupling portion of the blade type is rotated, the above electric connector can be used for a general purpose regardless of the profile, interval and arrangement of the external male coupling portion or the external female coupling portion.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

Claims
1. An electric connector, comprising: a circular upper supporting portion; and a plurality of terminal parts having a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, and an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion, wherein an external male coupling portion inserted via the upper supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
2. The electric connector of claim 1, wherein an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction is formed at the connecting portion.
3. A method of making an electric connector, comprising the steps of: preparing a conductive plate of a predetermined size; forming a plurality of cantilevers for functioning as terminal parts on the conductive plate; forming an elastic portion by curving each of the cantilevers to be inclined with respect to the surface of the conductive plate; forming a connecting portion of a predetermined length by curving the lower end of the elastic portion formed at each of the cantilevers to be parallel with the conductive plate surface; and rolling the conductive plate so that the elastic portion and the connecting portion can be directed inwardly.
4. The method of claim 3, further comprising the steps of forming an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction at the connecting portion.
5. The method of claim 3 or 4, further comprising the steps of: preparing contact portion of a predetermined shape at the conductive plate and forming the contact portion integral with the conductive plate in the cantilevers forming step; and giving elasticity by curving the contact portion.
6. An adaptor, comprising: a case; at least two male coupling portions whose front end are inserted and removed into or from external female coupling portions and are contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a cylindrical supporting portion for insulting and removing the external male coupling portion and are contained in the case to move forwardly and backwardly and a plurality of terminal parts having an elastic portion which has a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion, and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion; a container for surrounding and supporting each of the female coupling portion; and a contact portion, installed at one end of the cylindrical supporting portion, for electrically connecting the male coupling portion and the female coupling portion by an elastic contact as they the male coupling portion and the female coupling portion are moved smoothly with respect to each other.
7. The adaptor of claim 6, wherein an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction is formed at the connecting portion.
8. The adaptor of claim 6 or 7, wherein the male coupling portion is a rotatable blade type.
9. An electrical connector, comprising: a circular lower supporting portion; a plurality of vertical supporting portions which is extended upwardly with one end being fixed to the lower supporting portion; a horizontal supporting portion which is extended horizontally at near the other end of each of the vertical supporting portions; and a plurality of terminal parts, each having an elastic portion with a direction focused restoring force and is extended downwardly with one end being fixed to the horizontal supporting portion without torsion and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion being constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion.
10. The electric connector of claim 9, wherein an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction may be formed at the connecting portion.
11. The electric connector of claim 9 or 10, wherein a contact portion is installed at the lower supporting portion.
12. An adaptor, comprising: a case; at least two male coupling portions whose each front end is inserted and removed into or from an external female coupling portion and is contained in the case to bilaterally move within a predetermined range; a deviation preventing member formed at each of the male coupling portions to prevent each of the male coupling portion from being deviated from the case forwardly and backwardly; at least two female coupling portions having a circular lower supporting portion for inserting or removing the external male coupling portion and is contained in the case to move forwardly and backwardly, a plurality of vertical supporting portions extended upwardly with one end being fixed to the lower supporting portion, a horizontal supporting portion extended horizontally from near the other end of each of the vertical supporting portions and a plurality of terminal parts which has an elastic portion having a direction focused restoring force and is extended downwardly with one end being fixed to the cylindrical supporting portion without torsion and a connecting portion of a predetermined length and is extended downwardly from the other end of the elastic portion, wherein the external male coupling portion inserted via the cylindrical supporting portion is constrained to the respective connecting portion by the direction focused restoring force of each of the elastic portion; a container for surrounding and supporting each of the female coupling portions; and a contact portion, installed at one end of the cylindrical supporting portion, for electrically connecting the male coupling portion and the female coupling portion by an elastic contact as they are moved smoothly with respect to each other.
13. The adaptor of claim 12, wherein an inclined plane bent at a predetermined angle with respect to the center of the longitudinal direction is formed at the connecting portion.
14. The adaptor of claim 12 or 13, wherein the male coupling portion is a rotatable blade type.
PCT/KR2002/000436 2001-03-13 2002-03-13 Electric connector, method of making the electric connector and adaptor in use with the electric connector WO2002073752A1 (en)

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KR1020010012966A KR20020072912A (en) 2001-03-13 2001-03-13 Electric connector, Method of making the electric connector and adaptor in use with the electric connector
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KR102098404B1 (en) * 2014-10-02 2020-04-07 현대자동차주식회사 High voltage connector for vehicle

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EP0577035A1 (en) * 1992-07-03 1994-01-05 Alcatel Components Limited Cord grip arrangement
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WO2023208721A1 (en) * 2022-04-26 2023-11-02 Hirschmann Automotive Gmbh Optimized spring cage

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