WO2011018880A1 - 同軸コネクタ及びその組立方法 - Google Patents
同軸コネクタ及びその組立方法 Download PDFInfo
- Publication number
- WO2011018880A1 WO2011018880A1 PCT/JP2010/004725 JP2010004725W WO2011018880A1 WO 2011018880 A1 WO2011018880 A1 WO 2011018880A1 JP 2010004725 W JP2010004725 W JP 2010004725W WO 2011018880 A1 WO2011018880 A1 WO 2011018880A1
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- WIPO (PCT)
- Prior art keywords
- conductor
- housing
- coaxial connector
- shell
- holding
- Prior art date
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Classifications
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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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/38—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
- H01R24/40—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
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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
- H01R13/46—Bases; Cases
- H01R13/50—Bases; Cases formed as an integral body
- H01R13/501—Bases; Cases formed as an integral body comprising an integral hinge or a frangible part
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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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
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/03—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
- H01R9/05—Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
- H01R9/0518—Connection to outer conductor by crimping or by crimping ferrule
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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
- H01R2103/00—Two poles
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49174—Assembling terminal to elongated conductor
- Y10T29/49181—Assembling terminal to elongated conductor by deforming
- Y10T29/49185—Assembling terminal to elongated conductor by deforming of terminal
Definitions
- the present invention relates to a coaxial connector used in information devices such as mobile phones and laptop computers, and small electronic devices such as home appliances, and an assembling method thereof.
- the inner conductor of the coaxial cable and the connection terminal of the coaxial connector are often soldered.
- the characteristic impedance deviates from a desired value.
- lead since lead often uses lead, it is preferable that the coaxial cable is not solder-connected from an environmental point of view during disposal.
- the coaxial connector 101 includes an insulating portion 103, a connection terminal 102 fixed to the insulating portion 103, and a metal shell 104.
- the connection terminal 102 is connected to the inner conductor 134 of the coaxial cable 131.
- the shell 104 supports the connection terminal 102 via the insulating portion 103.
- the connection terminal 102 has a pair of opposing contacts 102a and 102b formed by bending a metal leaf spring into a V shape. Of the pair of contacts 102 a and 102 b, one contact 102 a is fixed to the insulating portion 103.
- the shell 104 includes a shell main body 104a, a shell bent portion 104b, a first engagement tongue piece 104c, a second engagement tongue piece 104d, and a third engagement tongue piece 104e. ing.
- the shell main body 104 a supports the insulating portion main body 103 a of the insulating portion 103.
- the shell bent portion 104b is juxtaposed with the insulating bent portion 103b of the insulating portion 103, and is bent together with the insulating bent portion 103b.
- the first engaging tongue piece 104c is formed on each side of the shell bent portion 104b.
- the shell bent portion 104b and the insulating bent portion 103b are simultaneously bent toward the shell main body 104a and the insulating portion main body 103a. Then, the other contact 102b constituting the connection terminal 102 presses the inner conductor 134 against the one contact 102a by the bending force of the shell bent portion 104b and the insulating bent portion 103b (see FIG. 11). As a result, the pair of contacts 102a and 102b are elastically deformed to grip the inner conductor 134 of the coaxial cable 131.
- the first engaging tongue piece 104c is crimped to the insulating portion main body 103a and the shell main body 104a
- the second engaging tongue piece 104d is crimped to the outer conductor 133 of the coaxial cable 131
- the tongue piece 104e is pressure-bonded to the jacket portion 132 of the coaxial cable 131. In this way, a configuration is adopted in which the inner conductor 134 of the coaxial cable 131 and the connection terminal 102 are electrically connected.
- the internal conductor 134 does not need to be solder-connected to the connection terminal 102, so that the problem that the characteristic impedance deviates from a desired value due to a difference in the amount of solder used is solved. . Moreover, the problem of the environmental viewpoint at the time of disposal etc. by using solder is also eliminated.
- the present invention has been made in view of the above-mentioned problems, and the object thereof is a coaxial connector with little variation in the amount of pinching of the connection terminal with respect to the internal conductor and high reliability of connection between the internal conductor and the connection terminal. And an assembly method thereof.
- a coaxial connector according to claim 1 of the present invention includes a housing, an internal contact fixed to the housing and connected to an internal conductor of a coaxial cable, and fixed to the housing.
- the conductor clamping arm is formed with a locking portion, A holding portion into which the locking portion is press-fitted when the conductor holding arm is bent with respect to the conductor placement portion is provided in the housing or the conductor placement portion.
- the holding portion for press-fitting the conductor holding arm for holding the inner conductor together with the conductor placing portion is provided, the inner contact can be crimped independently regardless of the bending position of the outer contact. it can. Accordingly, it is possible to provide a coaxial connector that has a small variation in the amount of pinching of the connection terminal with respect to the internal conductor and high reliability in connection between the internal conductor and the connection terminal.
- a coaxial connector according to a second aspect of the present invention is the coaxial connector according to the first aspect, wherein a stopper that defines a press-fit lowest position of the locking portion is formed in the holding portion. Yes.
- a coaxial connector according to a third aspect of the present invention is the coaxial connector according to the first aspect, wherein the external contact is formed integrally with the shell fixed to the housing, the shell being fixed to the shell. And a shell cover portion that is bent to sandwich the housing together with the shell.
- the coaxial connector according to any one of the first to third aspects is the coaxial connector according to any one of the first to third aspects, wherein the holding portion provided on the housing is provided on each side edge of the locking portion. It is characterized in that a barb to be locked to is protruded.
- a method for assembling a coaxial connector wherein a coaxial cable is connected to a coaxial connector having a housing, an internal contact fixed to the housing, and an external contact fixed to the housing.
- a method for assembling a coaxial connector A placing step of placing the inner conductor on the conductor placing portion of the inner contact; A conductor holding arm formed integrally with the conductor placing portion and having a locking portion is bent with respect to the conductor placing portion, and the engagement portion is attached to the holding portion provided in the housing or the conductor placing portion. And a clamping step of holding the stopper and clamping the inner conductor together with the conductor mounting portion.
- the clamping step is performed regardless of the bending position of the external contact, the variation in the amount of clamping of the connection terminal with respect to the internal conductor is reduced. Therefore, the connection reliability between the internal conductor and the connection terminal is increased.
- the external contact is formed integrally with a shell fixed to the housing and the shell.
- the coaxial connector according to the present invention it is possible to provide a coaxial connector in which the amount of pinching of the connection terminal with respect to the internal conductor is small and the connection between the internal conductor and the connection terminal is highly reliable.
- FIG. 2 is a cross-sectional view taken along line 2-2 in FIG.
- FIG. 3 shows the configuration of the internal contact in FIG. 3, (A) is a plan view, (B) is a left side view, (C) is a front view, (D) is a right side view, and (D) is a bottom view.
- FIG. 6 is a cross-sectional view taken along line 6-6 in FIG. It is sectional drawing which shows the structure in 1st Embodiment of the coaxial connector which concerns on this invention, and has shown sectional drawing of the coaxial connector after connecting a coaxial cable. It is a figure which shows the structure of the internal contact in 2nd Embodiment of the coaxial connector which concerns on this invention, (A) is the perspective view seen from back diagonally upward, (B) is sectional drawing in a holding
- the coaxial connector 1 includes a housing 10, an internal contact 20, and an external contact 30.
- the housing 10 is integrally formed from an electrically insulating material (for example, synthetic resin).
- the housing 10 includes a rear portion 10a and a front portion 10b.
- the rear portion 10a has a substantially rectangular parallelepiped shape
- the front portion 10b has a substantially cylindrical shape having an axis orthogonal to the longitudinal direction of the rear portion 10a.
- the front portion 10b is formed to be thicker than the rear portion 10a (see FIG. 2).
- the rear portion 10a is formed with a first groove portion 11a having a semicircular cross section and opening to the rear side and extending so as to coincide with the axial direction of the coaxial cable 50 and the longitudinal direction of the rear portion 10a.
- the coaxial cable 50 is inserted into the first groove portion 11a.
- a hole 15 (see FIG. 7) is formed. In the fitting hole 15, contact pieces 24 and 24 of the internal contact 20 described later are disposed.
- a holding part 12 is formed between the first groove part 11 a and the second groove part 11 b in the housing 10.
- the holding part 12 is a rectangular groove formed in communication between the rear part 10a and the front part 10b and extending in a direction (width direction) perpendicular to the longitudinal direction of the rear part 10a.
- the width dimension d 12 of the holding portion 12 is either equal to the width dimension d 23 of the locking portion 23 is slightly smaller design (see FIGS. 1 and 5). Thereby, the latching
- the dimension of the holding part 12 in the longitudinal direction may be not less than the dimension in the longitudinal direction of the locking part 23 described later.
- the stopper 13 which prescribes
- the internal contact 20 is formed by punching and bending a metal plate. Since the internal contact 20 is connected to the internal conductor 51 exposed from the coaxial cable 50 inserted into the first groove portion 11a of the housing 10, it is fixed to the second groove portion 11b (see FIGS. 1 and 5). As shown in FIGS. 1 to 4, the internal contact 20 includes a conductor placing portion 21, a conductor holding arm 22, and a pair of contact pieces 24 and 24.
- the conductor placing portion 21 has a substantially rectangular plate shape extending in the front-rear direction.
- the conductor holding arm has a plate shape and is integrally formed on the front side of the conductor placement portion 21.
- the pair of contact pieces 24, 24 are formed integrally with the conductor placement portion 21 and are formed on both sides of the conductor placement portion 21.
- the conductor holding arm 22 is curved toward the conductor mounting portion 21 so that the cross-sectional shape is an S shape.
- the contact pieces 24, 24 are electrically connected to a mating contact (not shown) of the mating connector.
- the conductor holding arm 22 is bent upward with respect to the conductor placement portion 21, and the pair of contact pieces 24, 24 are bent downward with respect to the conductor placement portion 21.
- the contact pieces 24 and 24 bent downward are close to each other when viewed from the front so as to be bent and connected to the mating contact (not shown) of the mating connector. Curved in the direction you want.
- a locking portion 23 protruding in the width direction is formed at the tip of the conductor holding arm 22.
- the conductor holding arm 22 is further bent with respect to the conductor placement portion 21 when the inner conductor 51 of the coaxial cable 50 is placed on the conductor placement portion 21.
- the locking portion 23 of the internal contact 20 is press-fitted into the holding portion 12 formed in the housing 10.
- the width dimension d 23 of the locking portion 23, for being set in the width dimension d 12 or more retaining portions 12 (see FIGS. 1 and 5), the conductor and the mounting portion 21 and the conductor clamping arm 22 The holding state of the inner conductor 51 is maintained.
- the conductor holding arm 22 is bent with respect to the conductor placing portion 21 to hold the internal conductor 51 and the locking portion 23 is press-fitted into the holding portion 12. Variation can be reduced. As a result, the coaxial connector 1 with high connection reliability between the internal conductor 51 and the connection terminal (internal contact 20) can be provided.
- the external contact 30 is fixed to the outer edge surface of the housing 10 and connected to the external conductor 53 of the coaxial cable 50.
- the external contact 30 is formed by punching and bending a metal plate.
- the external contact 30 includes a shell 31 that extends along the axial direction of the groove 11, and a shell cover portion 32 that is formed integrally with the shell 31, is bent with respect to the shell 31, and sandwiches the housing 10 together with the shell 31.
- the shell 31 is formed with a frame portion 31a formed along the outer shape of the rear portion 10a and a part of both side edges bulging in an arc shape in accordance with the circular outer shape of the front portion 10b. And a substantially cylindrical fitting portion 33.
- the frame portion 31 a is formed with an opening portion 31 c that communicates with the first groove portion 11 a and allows insertion of the dielectric 52 of the coaxial cable 50.
- a notch 33b extending in the vertical direction for imparting flexibility to the fitting part 33 is circumferentially provided at the tip part 33a in the axial direction of the fitting part 33 (tip part on the side fitting to the mating connector not shown).
- a plurality are formed.
- the shell cover 32 is provided with crimping pieces 32a and 32a, crimping pieces 32b and 32b, and crimping pieces 32c and 32c.
- the crimping pieces 32 a and 32 a are crimped to the shell 31 and the rear portion 10 a of the housing 10.
- the crimping pieces 32b and 32b are crimped to the outer conductor 53 of the coaxial cable 50 adjacent to the crimping pieces 32a and 32a.
- the crimping pieces 32c and 32c are crimped to the jacket 54 of the coaxial cable 50 adjacent to the crimping pieces 32b and 32b.
- the crimping pieces 32a and 32a extend downward from both side edges of the shell cover 32 and receive the shell 31 and the rear portion 10a before being crimped to the outer conductor 53. It can be done.
- the crimping pieces 32 b and 32 b extend downward from both side edges of the shell cover 32 and can receive the jacket 54 before being crimped to the jacket 54. It has become.
- a cover portion 14 is provided to stand so as to face the inner surface side (surface facing the shell 31 side) of the shell cover 32.
- the cover portion 14 supports the conductor holding arm 22 of the internal contact 20 when the shell cover 32 is bent with respect to the shell 31.
- the conductor holding arm 22 that holds the internal conductor 51 together with the conductor placement portion 21 is supported from above, so that the reliability of the connection between the internal conductor 51 and the internal contact 20 is improved. Can do.
- the coaxial cable 50 includes an inner conductor 51, a dielectric 52 that houses the inner conductor 51, an outer conductor 53 that covers the outer periphery of the dielectric 52, and an outer periphery of the outer conductor 53. And an insulative jacket 54 covering the.
- the internal conductor 51 exposed at the tip of the dielectric 52 is sandwiched between the conductor placing portion 21 and the conductor sandwiching arm 22.
- the outer conductor 53 is, for example, a braided wire made of copper, but may be a horizontal winding or a conductor foil.
- the method for assembling a coaxial connector according to the present invention includes a placing step, a clamping step, and a connecting step. If the external contact 30 does not have the shell 31 fixed to the housing 10 and the shell cover 32 formed integrally with the shell 31, the connection step may not be necessary.
- the inner conductor 51 of the coaxial cable 50 is placed on the conductor placing portion 21 of the inner contact 20 fixed to the housing 10.
- the conductor holding arm 22 formed with the locking portion 23 is bent with respect to the conductor placing portion 21 to engage the conductor holding arm 22.
- the stop portion 23 is press-fitted into the holding portion 12 provided in the housing 10. As a result, the state in which the inner conductor 51 is held by the conductor placing portion 21 and the conductor holding arm 22 is maintained.
- the shell cover 32 is bent with respect to the shell 31, and the pair of crimping pieces 32a and 32a is crimped to the shell 31 and the rear portion 10a, and the crimping pieces 32b and 32b are crimped to the external conductor 53, 32c and 32c are crimped
- the cover part 14 provided in front of the housing 10 supports the conductor holding arm 22 that holds the internal conductor 51 together with the conductor mounting part 21 from above, so that the connection between the internal conductor 51 and the internal contact 20 is achieved. Improve reliability.
- the inner conductor 51 is sandwiched between the conductor placement portion 21 and the conductor sandwiching arm 22 by press-fitting the locking portion 23 into the holding portion 12, and thus variation in the amount of sandwiching of the inner contact 20 with respect to the inner conductor 51 occurs. Few. Therefore, it is possible to provide the coaxial connector 1 with high connection reliability between the internal conductor 51 and the internal contact 20.
- each of the locking portions 23 protruding in the width direction of the conductor holding arm 22 is bent toward the conductor placement portion 21.
- Each of the locking portions 23 is formed with a stopper 23a extending in a direction orthogonal to the bent direction and a protruding portion (barb) 23b protruding in the same direction in order toward the tip.
- the conductor mounting portion 21 is formed with holding portions 25 and 25 into which the bent locking portions 23 are inserted according to the number and positions of the locking portions 23 and 23.
- the holding part 25 is formed to penetrate both sides of the position where the internal conductor 51 is placed in the conductor placing part 21.
- the stopper 23a and the protrusion 23b in the locking part 23 the movement of the locking part 23 inserted into the holding part 25 can be firmly restricted.
- maintenance part 25 are formed from the same metal material, there exists an advantage that the dimensional variation by a heat
- each of the locking portions 23 protruding in the width direction of the conductor holding arm 22 is bent toward the conductor placement portion 21.
- the barb 23c is protrudingly formed in each of the both-sides edge of the latching
- the housing 10 is formed with a slit-like holding portion 12 into which the barb 23c of the locking portion 23 is press-fitted when the conductor holding arm 22 is bent.
- the dimension in the front-rear direction of each holding part 12, 12 is set to be equal to or smaller than the dimension in the front-rear direction of the locking part 23.
- the barbs 23c are formed on both side edges of the locking portion 23, whereby the holding portion 12 and the locking portion 23 in the state where the internal conductor 51 is clamped by the conductor mounting portion 21 and the conductor clamping arm 22 Can be strengthened.
- the engaging portion 23 is not necessarily provided at the tip of the conductor holding arm 22, and the installation position and the number can be appropriately changed according to the purpose.
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Abstract
Description
図10に示すように、この同軸コネクタ101は、絶縁部103と、絶縁部103に固定された接続端子102及び金属製のシェル104とを有する。接続端子102は、同軸ケーブル131の内部導体134に接続される。シェル104は、絶縁部103を介して接続端子102を支承する。
従って、本発明は上述の問題点に鑑みてなされたものであり、その目的は、内部導体に対する接続端子の挟み込み量のばらつきが少なく、内部導体と接続端子との接続の信頼性が高い同軸コネクタ及びその組立方法を提供することにある。
前記内部コンタクトが、前記内部導体を載置する導体載置部と、該導体載置部と一体に形成され、前記導体載置部に対して折り曲げられた際に前記導体載置部と共に前記内部導体を挟持する導体挟持アームとを有する同軸コネクタにおいて、
前記導体挟持アームには係止部が形成され、
前記導体載置部に対して前記導体挟持アームが折り曲げられた際に前記係止部が圧入される保持部を前記ハウジング又は前記導体載置部に設けたことを特徴としている。
また、本発明のうち請求項3に係る同軸コネクタは、請求項1に記載の同軸コネクタにおいて、前記外部コンタクトが、前記ハウジングに固定されたシェルと、該シェルと一体に形成され、前記シェルに対して折り曲げて前記シェルと共に前記ハウジングを挟持するシェルカバー部とを有することを特徴としている。
また、本発明のうち請求項4に係る同軸コネクタは、請求項1~3のいずれかに記載の同軸コネクタにおいて、前記係止部の両側縁のそれぞれには前記ハウジングに設けられた前記保持部に係止されるバーブが突出形成されていることを特徴としている。
前記内部コンタクトの導体載置部に前記内部導体を載置する載置工程と、
前記導体載置部と一体に形成され、係止部が形成された導体挟持アームを前記導体載置部に対して折り曲げて、前記ハウジング又は前記導体載置部に設けられた保持部に前記係止部を保持し、前記内部導体を前記導体載置部と共に挟持する挟持工程とを含むことを特徴としている。
この同軸コネクタの組立方法によれば、挟持工程が、外部コンタクトの折り曲げ位置にかかわらず行われるので、内部導体に対する接続端子の挟み込み量のばらつきが少なくなる。従って、内部導体と接続端子との接続の信頼性が高くなる。
(第1の実施形態)
図1及び図2に示すように、同軸コネクタ1は、ハウジング10と、内部コンタクト20と、外部コンタクト30とを有する。
<ハウジング>
ハウジング10は、図1及び図2に示すように、電気絶縁性の材料(例えば合成樹脂)から一体に成形される。ハウジング10は、後方部10aと前方部10bとからなる。後方部10aはほぼ直方体形状をなし、前方部10bは後方部10aの長手方向と直交する軸を有するほぼ円柱形状をなす。前方部10bの厚さは、後方部10aの厚さよりも厚く形成される(図2参照)。
前方部10bには、内部コンタクト20を固定する矩形状の第2溝部11bと、第2溝部11bに連通し、前方部10bの軸方向に沿って前方部10bの下面に貫通する矩形の嵌合孔15(図7参照)とが形成されている。この嵌合孔15内には、後述する内部コンタクト20の接触片24,24が配置されている。
また、保持部12には、係止部23の圧入最下位置を規定するストッパ13が保持部12の底面に形成されている(図2参照)。このストッパ13が形成されていることにより、保持部12に対する係止部23の圧入の深さが一定となり、圧入量のばらつきが少なくなる。
内部コンタクト20は、図3及び図4に示すように、金属板を打抜き及び曲げ加工することによって形成される。内部コンタクト20は、ハウジング10の第1溝部11aに挿入された同軸ケーブル50から露出した内部導体51に接続されるため、第2溝部11bに固定される(図1及び図5参照)。
また、図1~4に示すように、内部コンタクト20は、導体載置部21と、導体挟持アーム22と、1対の接触片24,24とを有する。導体載置部21は、前後方向に延びるほぼ長方形板状をなす。導体挟持アームは、板状をなし、導体載置部21の前方側に一体に形成される。1対の接触片24,24は、導体載置部21と一体に形成され、導体載置部21の両側に形成される。導体載置部21には、第1溝部11aに挿入された同軸ケーブル50の内部導体51が載置される。導体挟持アーム22は、図4(B),(D)に示すように、断面形状がS字状となるように導体載置部21側に湾曲している。接触片24,24は、相手コネクタの相手コンタクト(図示せず)に電気的に接続される。導体挟持アーム22は、導体載置部21に対して上方に折り曲げられ、1対の接触片24,24は、導体載置部21に対して下方にそれぞれ折り曲げられる。下方にそれぞれ折り曲げられた接触片24,24は、図4(C)に示すように、相手コネクタの相手コンタクト(図示せず)に対して撓んで接続されるように、正面から見て互いに接近する方向に湾曲されている。
図5及び図6に示すように、導体挟持アーム22は、同軸ケーブル50の内部導体51が導体載置部21に載置された際、導体載置部21に対して更に折り曲げられる。このとき、ハウジング10に形成された保持部12に内部コンタクト20の係止部23を圧入させる。係止部23の幅方向の寸法d23は、保持部12の幅方向の寸法d12以上に設定されている(図1及び図5参照)ため、導体載置部21と導体挟持アーム22とによる内部導体51の挟持状態が維持される。
外部コンタクト30は、ハウジング10の外縁面に固定され、同軸ケーブル50の外部導体53に接続される。
外部コンタクト30は、金属板を打抜き及び曲げ加工することによって形成される。外部コンタクト30は、溝部11の軸線方向に沿って延びるシェル31と、シェル31と一体に形成され、シェル31に対して折り曲げて、シェル31と共にハウジング10を挟持するシェルカバー部32とを有する。シェル31は、後方部10aの外形に沿って形成された枠部31aと、前方部10bの円形の外形形状に合わせて両側縁の一部が弧状に膨出して形成され、相手コネクタと嵌合する略円筒形の嵌合部33とからなる。枠部31aには、第1溝部11aに連通して、同軸ケーブル50の誘電体52の挿入を許容する開口部31cが形成されている。嵌合部33の軸方向の先端部33a(図示しない相手コネクタに嵌合する側の先端部)には、嵌合部33に可撓性を付与するための上下方向に延びる切欠33bが周方向に複数形成されている。
次に、上記のように構成された同軸コネクタの組立方法について、図面を参照して説明する。
本発明に係る同軸コネクタの組立方法は、載置工程と、挟持工程と、接続工程とを含む。なお、外部コンタクト30が、ハウジング10に固定されたシェル31と、シェル31と一体に形成されたシェルカバー32とを有しない場合は、前記接続工程は必要ない場合がある。
まず、上記構成をなす同軸コネクタ1において、ハウジング10に固定された内部コンタクト20の導体載置部21に同軸ケーブル50の内部導体51を載置する。
<挟持工程>
次に、内部導体51が載置された導体載置部21に対して、係止部23が形成された導体挟持アーム22を導体載置部21に対して折り曲げて、導体挟持アーム22の係止部23を、ハウジング10に設けられた保持部12に圧入させる。これにより、導体載置部21及び導体挟持アーム22による内部導体51の挟持状態を維持する。
次に、シェル31に対してシェルカバー32を折り曲げて、1対の圧着片32a,32aをシェル31及び後方部10aに圧着すると共に、圧着片32b,32bを外部導体53に圧着し、圧着片32c,32cを外被54に圧着する(図7参照)。このとき、ハウジング10の前方に設けられたカバー部14が、導体載置部21と共に内部導体51を挟持した導体挟持アーム22を上方から支持するので、内部導体51と内部コンタクト20との接続の信頼性を向上させる。
このように、保持部12に係止部23を圧入することにより、導体載置部21及び導体挟持アーム22で内部導体51を挟持するので、内部導体51に対する内部コンタクト20の挟み込み量のばらつきが少ない。従って、内部導体51と内部コンタクト20との接続の信頼性が高い同軸コネクタ1を提供することができる。
次に、第2の実施形態について、図8を参照して説明する。本実施形態は、係止部及び保持部の構造が前述の第1の実施形態と異なっているだけであるので、第1の実施形態と共通する構成については説明を省略する。図8に示すように、本実施形態では、導体挟持アーム22の幅方向に突出した係止部23のそれぞれが導体載置部21側に折り曲げられている。また、係止部23のそれぞれには、折り曲げられた方向と直交する方向に延びるストッパ23aと、同方向に突出した突起部(バーブ)23bとが先端に向かって順に形成されている。
次に、第3の実施形態について、図9を参照して説明する。本実施形態は、係止部の構造が前述の第1の実施形態と異なっているだけであるので、第1の実施形態と共通する構成については説明を省略する。図9に示すように、本実施形態では、導体挟持アーム22の幅方向に突出した係止部23のそれぞれが導体載置部21側に折り曲げられている。そして、折り曲げられた係止部23の両側縁のそれぞれには、バーブ23cが突出形成されている。一方、ハウジング10には、導体挟持アーム22が折り曲げられることにより係止部23のバーブ23cが圧入されるスリット状の保持部12が形成されている。各保持部12,12の前後方向の寸法は、係止部23の前後方向の寸法以下に設定される。このように、係止部23の両側縁にバーブ23cが形成されることによって、内部導体51が導体載置部21及び導体挟持アーム22により挟持された状態における保持部12と係止部23との保持を強固にすることができる。
以上、本発明の実施形態について説明してきたが、本発明はこれに限定されずに種々の変更、改良を行うことができる。例えば、係合部23は必ずしも導体挟持アーム22の先端に設けられる必要はなく、設置位置及び個数は目的に応じて適宜変更可能である。
10 ハウジング
12 保持部
13 ストッパ
20 内部コンタクト
21 導体載置部
22 導体挟持アーム
23 係止部
23c バーブ
25 保持部
30 外部コンタクト
31 シェル
32 シェルカバー部
50 同軸ケーブル
51 内部導体
53 外部導体
Claims (6)
- ハウジングと、該ハウジングに固定され、同軸ケーブルの内部導体に接続される内部コンタクトと、前記ハウジングに固定され、前記同軸ケーブルの外部導体に接続される外部コンタクトとを有し、
前記内部コンタクトが、前記内部導体を載置する導体載置部と、該導体載置部と一体に形成され、前記導体載置部に対して折り曲げられた際に前記導体載置部と共に前記内部導体を挟持する導体挟持アームとを有する同軸コネクタにおいて、
前記導体挟持アームには係止部が形成され、
前記導体載置部に対して前記導体挟持アームが折り曲げられた際に前記係止部が圧入される保持部を前記ハウジング又は前記導体載置部に設けたことを特徴とする同軸コネクタ。 - 前記係止部の圧入最下位置を規定するストッパが前記保持部に形成されたことを特徴とする請求項1に記載の同軸コネクタ。
- 前記外部コンタクトが、前記ハウジングに固定されたシェルと、該シェルと一体に形成され、前記シェルに対して折り曲げて前記シェルと共に前記ハウジングを挟持するシェルカバー部とを有することを特徴とする請求項1に記載の同軸コネクタ。
- 前記係止部の両側縁のそれぞれには前記ハウジングに設けられた前記保持部に係止されるバーブが突出形成されていることを特徴とする請求項1~3のいずれかに記載の同軸コネクタ。
- ハウジングと、該ハウジングに固定された内部コンタクトと、前記ハウジングに固定された外部コンタクトとを有する同軸コネクタに同軸ケーブルを接続する同軸コネクタの組立方法であって、
前記内部コンタクトの導体載置部に前記内部導体を載置する載置工程と、
前記導体載置部と一体に形成され、係止部が形成された導体挟持アームを前記導体載置部に対して折り曲げて、前記ハウジング又は前記導体載置部に設けられた保持部に前記係止部を保持し、前記内部導体を前記導体載置部と共に挟持する挟持工程とを含むことを特徴とする同軸コネクタの組立方法。 - 前記外部コンタクトが、前記ハウジングに固定されたシェルと、該シェルと一体に形成されたシェルカバーとを有し、前記挟持工程後に、前記シェルに対して前記シェルカバーを折り曲げて、前記シェルカバーを前記ハウジングに固定すると共に、前記シェルカバーを前記外部導体に接続する接続工程を含むことを特徴とする請求項5に記載の同軸コネクタの組立方法。
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JP5763007B2 (ja) * | 2012-04-19 | 2015-08-12 | ヒロセ電機株式会社 | 電気コネクタ |
CN102709729B (zh) * | 2012-06-12 | 2015-12-09 | 昆山科信成电子有限公司 | 连接端子、同轴电连接器及其接线结构 |
CN102842838B (zh) * | 2012-08-01 | 2015-01-07 | 番禺得意精密电子工业有限公司 | 线缆连接器的制造方法及其线缆连接器 |
JP6278586B2 (ja) * | 2012-09-10 | 2018-02-14 | 日本航空電子工業株式会社 | 同軸コネクタ |
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JP5772900B2 (ja) | 2013-08-08 | 2015-09-02 | 第一精工株式会社 | 同軸型電気コネクタ |
CN104916943B (zh) * | 2014-07-21 | 2017-03-22 | 深圳市长盈精密技术股份有限公司 | 一体成型式射频连接器 |
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