CN109428217B - Electrical connector - Google Patents
Electrical connector Download PDFInfo
- Publication number
- CN109428217B CN109428217B CN201711441804.5A CN201711441804A CN109428217B CN 109428217 B CN109428217 B CN 109428217B CN 201711441804 A CN201711441804 A CN 201711441804A CN 109428217 B CN109428217 B CN 109428217B
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- China
- Prior art keywords
- connector
- housing
- inner conductor
- conductor
- outer conductor
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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
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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
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
Abstract
The invention provides an electric connector having an inner conductor with a simple structure and low manufacturing cost without reducing the strength of the inner conductor. The electrical connector has a first connector formed on one end side of the cylindrical housing and a second connector formed on the other end side. The first connector includes a cylindrical first outer conductor provided inside one end side of the housing, and a hollow first inner conductor provided inside the first outer conductor coaxially with the first outer conductor with a first insulating member interposed therebetween. The second connector includes a cylindrical second outer conductor provided inside the other end side of the housing and electrically connected to the first outer conductor, and a hollow second inner conductor provided coaxially with the second outer conductor through a second insulating member inside the second outer conductor. The first inner conductor and the second inner conductor are connected to each other by a conductive connecting piece so as to be positioned coaxially, and the connecting piece is fixed in the housing by a fixing member obtained by hardening resin.
Description
Technical Field
The present invention relates to an electrical connector.
Background
Conventionally, there is known an electrical connector (conversion adapter) (hereinafter, also simply referred to as an electrical connector) for conversion, which converts a coaxial connector used for connection of a coaxial cable or the like into a different type of coaxial connector.
Specifically, in this type of electrical connector, two coaxial connectors are connected in opposite directions, one coaxial connector is connected to a connector to be connected, and the other coaxial connector is connected to a connector to be connected. Each of the coaxial connectors to be connected has an outer conductor and an inner conductor, and the outer conductor and the inner conductor are insulated by an insulating member. In addition, the outer conductors and the inner conductors of the two coaxial connectors provided to be connected are electrically connected to each other. When the mating connector is connected to the coaxial connector, the outer conductors and the inner conductors of the coaxial connector and the mating connector are electrically connected to each other.
As such an electrical connector, there is an electrical connector in which an inner conductor of one coaxial connector and an inner conductor of the other coaxial connector are integrally formed of the same material (for example, see patent document 1).
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2004-342571
Disclosure of Invention
Technical problem to be solved by the invention
However, the conventional electrical connector described in patent document 1 has a problem that the manufacturing cost of the inner conductor is high.
Specifically, the conventional inner conductor is configured such that one end side of one columnar member is an inner conductor of one coaxial connector and the other end side is an inner conductor of the other coaxial connector. In addition, a structure is formed in which an insertion hole or the like is formed in the axial direction at the end of the columnar member in order to accommodate the inner conductor of the target connector. The inner conductor of this structure is relatively strong, but it is manufactured by cutting or die casting, and therefore, the manufacturing cost becomes high.
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electrical connector having an inner conductor with a simple structure that is inexpensive to manufacture without reducing the strength of the inner conductor.
Means for solving the technical problem
In order to achieve the above object, an electrical connector according to the present invention is a coaxial connector having a first connector formed on one end side of a cylindrical housing and a second connector formed on the other end side of the housing, the first connector including: a cylindrical first outer conductor provided inside the one end side of the housing; and a hollow first inner conductor provided coaxially with the first outer conductor with a first insulating member interposed therebetween on an inner side of the first outer conductor; the second connector includes: a cylindrical second outer conductor provided inside the other end side of the housing and electrically connected to the first outer conductor; and a hollow second inner conductor provided coaxially with the second outer conductor through a second insulating member inside the second outer conductor; the first inner conductor and the second inner conductor are connected to each other by a conductive connecting piece, which is fixed to the housing by a fixing member obtained by hardening a resin, so as to be positioned coaxially.
As described above, in the electrical connector according to the present invention, the hollow first inner conductor and the hollow second inner conductor are connected to each other by the conductive connecting piece so as to be positioned coaxially, and there is no solid columnar portion as in the conventional case, and the electrical connector has a simple configuration. Therefore, the metal plate can be manufactured by bending (pressing) or the like of the metal plate material, and the manufacturing cost can be reduced as compared with the conventional technique using cutting or die casting.
In the electrical connector of the present invention, the connecting piece is fixed in the housing by a fixing member obtained by hardening a resin. This can improve the strength of the portion of the inner conductor where the strength of the connecting piece is relatively weak.
Accordingly, the present invention can solve the problem of providing an electrical connector having an inner conductor with a simple structure that is inexpensive to manufacture without reducing the strength of the inner conductor.
In the electrical connector according to the present invention, the first inner conductor, the second inner conductor, and the connecting piece may be integrally formed from a single metal plate.
With this configuration, the electrical connector of the present invention can be manufactured by bending (pressing) a single metal plate material, unlike the conventional manufacturing method using cutting or die casting, and the manufacturing cost can be reduced as compared with the conventional method.
Further, the electrical connector of the present invention may include: a flange provided on an outer periphery of the housing; and a seal member housed in a groove formed in one surface of the flange so as to surround the housing; the fixing member divides the space inside the cylinder of the housing into two parts hermetically or liquid-tightly.
With this configuration, the electrical connector of the present invention can prevent water in a gas or liquid state from entering from one connector side to the other connector side within the housing, and can prevent water in a gas or liquid state from entering from a gap between the flange and a panel to which the flange is attached.
In the electrical connector according to the present invention, it is preferable that the maximum outer diameter of the first outer conductor and the maximum outer diameter of the first insulating member are equal to or smaller than the minimum inner diameter of the inside of the housing on the other end side.
With this configuration, the electrical connector according to the present invention can assemble all the components from one opening side (the other end side) of the housing. Therefore, it is not necessary to perform work such as inverting the housing in the assembly process, and therefore, the manufacturing becomes easy.
Effects of the invention
According to the present invention, it is possible to provide an electrical connector having an inner conductor of a simple structure which is inexpensive to manufacture without reducing the strength of the inner conductor.
Drawings
Fig. 1 (a) is a perspective view of an electrical connector according to an embodiment of the present invention, and fig. 1 (b) is a perspective view of the electrical connector of fig. 1 (a) viewed upside down.
Fig. 2 is a sectional view of fig. 1 (a).
Fig. 3 is an exploded perspective view of the electrical connector shown in fig. 1.
Fig. 4 (a) is a perspective view of the housing shown in fig. 3, and fig. 4 (b) is a sectional view thereof.
Fig. 5 (a) is a perspective view and fig. 5 (b) is a cross-sectional view of the first outer conductor shown in fig. 3.
Fig. 6 (a) is a perspective view and fig. 6 (b) is a sectional view of the first insulating member shown in fig. 3.
Fig. 7 (a) is a perspective view and fig. 7 (b) is a sectional view of the second outer conductor shown in fig. 3.
Fig. 8 (a) is a perspective view and fig. 8 (b) is a sectional view of the second insulating member shown in fig. 3.
Fig. 9 (a) is a perspective view of the inner conductor shown in fig. 3, fig. 9 (B) is a plan view of fig. 9 (a) from the a direction, fig. 9 (C) is a bottom view of fig. 9 (a) from the B direction, fig. 9 (d) is a perspective view of fig. 9 (a) from the C direction, and fig. 9 (e) is an enlarged perspective view of the S portion of fig. 9 (d).
Fig. 10 (a) is a side view of the inner conductor shown in fig. 9, and fig. 10 (b) is a cross-sectional view taken along the X-X direction of fig. 10 (a).
Fig. 11 (a) is a perspective view of the fixing member shown in fig. 3, and fig. 11 (b) is a sectional view thereof.
Fig. 12 is a perspective explanatory view showing an example of use of the electrical connector according to the embodiment of the present invention.
Description of the reference numerals
1: electrical connector
2: shell body
3: inner conductor
3 a: connecting sheet
3 b: plate-shaped protruding piece
4: fixing member
6: flange
7: o-ring (Ring sealing member)
8: locking part
10: first connector
11: first outer conductor
12: first insulating member
13: first inner conductor
20: second connector
21: second external conductor
22: second insulating member
23: second inner conductor
30: rear shell
31: substrate
32: object connector
Detailed Description
Hereinafter, an electrical connector according to an embodiment of the present invention will be described with reference to the drawings.
As shown in fig. 1, an electrical connector 1 according to an embodiment of the present invention includes a housing 2 made of a cylindrical conductor, a first connector 10(SMB connector) formed on one end side of the housing 2, and a second connector 20(FAKRA connector) formed on the other end side of the housing 2. The electrical connector 1 further includes a mounting flange 6 on the outer periphery of the housing 2.
In the present embodiment, the first connector 10 is an SMB connector and the second connector 20 is a FAKRA connector, but the type of connector is not limited thereto, and any type of connector may be used. The first connector 10 and the second connector 20 may be different kinds or the same kind of connectors.
In the present embodiment, the first connector 10 is a female connector and the second connector 20 is a male connector, but the combination of the male and female connectors is not limited to this. The first connector 10 may be a male connector, the second connector 20 may be a female connector, or both the first and second connectors may be a male connector or a female connector.
As shown in fig. 12, the electrical connector 1 is mounted on a rear case 30 of a vehicle-mounted camera by, for example, screws 33. The first connector 10 of the electrical connector 1 shown in fig. 12 is fitted to the mating connector 32 provided on the substrate 31 in the rear case 30. The second connector 20 is fitted to a mating connector attached to an end of the coaxial cable. The coaxial cable is connected to other devices such as an Electronic Control Unit (ECU). In this way, the electrical connector 1 electrically connects the wiring on the substrate 31 on the vehicle-mounted camera side to the coaxial cable connected to another device by connector fitting.
As shown in fig. 2, the first connector 10 according to the present embodiment includes a cylindrical first outer conductor 11, a hollow first inner conductor 13, and a first insulating member 12 interposed between and insulating the first outer conductor 11 and the first inner conductor 13.
Specifically, the first outer conductor 11 is disposed inside one end side (opening 2h side) of the case 2 in a state of being in contact with the case 2 to be electrically connected (conducted). The first inner conductor 13 is provided coaxially with the first outer conductor 11 inside the first outer conductor 11.
The second connector 20 includes a cylindrical second outer conductor 21, a hollow second inner conductor 23, and a second insulating member 22 interposed between the second outer conductor 21 and the second inner conductor 23 to insulate the two.
Specifically, the second outer conductor 21 is disposed inside the other end side (opening 2i side) of the case 2 in a state of being in contact with the case 2 to be electrically connected (conducted). That is, the second outer conductor 21 is electrically connected to the first outer conductor 11 via the housing 2. The second outer conductor 21 is provided coaxially with the first outer conductor 11. The second inner conductor 23 is provided coaxially with the second outer conductor 21 inside the second outer conductor 21.
Hereinafter, each constituent element will be described.
(case)
As shown in fig. 4, the case 2 is a tubular member made of a conductive material such as metal, and has an opening 2h at one end and an opening 2i at the other end. The housing 2 includes a first tubular portion 2a, a second tubular portion 2b, a third tubular portion 2c, and a fourth tubular portion 2d in this order from the opening 2h side. Here, when the inner diameters of the first to fourth tubular portions 2a, 2b, 2c, and 2D are D1, D2, D3, and D4, respectively, relationships of D1 > D2 and D2 < D3 < D4 are satisfied. That is, a step portion 2f is formed between the second tubular portion 2b and the third tubular portion 2c, and a step portion 2g is formed between the third tubular portion 2c and the fourth tubular portion 2 d. Further, an annular projection 2e projecting toward the inside of the cylinder is formed between the first cylinder 2a and the second cylinder 2 b.
A flange 6 is provided on the outer circumference of the cylinder of the housing 2. The flange 6 is provided with two screw holes 6a with spot-facing holes 6 b. An annular groove 6c is formed on one surface (surface on the opening 2h side) of the flange 6 so as to surround the housing 2 and be close to the outer periphery of the first cylindrical portion 2 a. An O-ring 7 as an example of an annular seal member can be accommodated in the groove 6 c.
In addition, the housing 2 has a locking portion 8 on the cylinder outer surface. The lock portion 8 is engaged with a lock receiving portion provided on the mating connector side, and fixes the mating between the mating connector and the second connector 20.
(first outer conductor)
As shown in fig. 5, the first outer conductor 11 has a cylindrical body 11 a. Four projecting portions 11c projecting outward of the cylinder are formed at equal intervals in the circumferential direction on the outer peripheral surface of the upper end portion of the cylinder 11 a. The first outer conductor 11 can be arranged and fixed at an appropriate position in the case 2 by the projecting portion 11c abutting against the annular projecting portion 2e of the case 2.
In addition, four notch grooves 11e extending in the axial direction except for the upper end portion are formed at equal intervals in the circumferential direction in the cylindrical body 11a of the first outer conductor 11. Thereby, the portion sandwiched by the adjacent two cut grooves 11e can be elastically displaced in the direction perpendicular to the axial direction.
In addition, at the lower end portion of the cylindrical body 11a of the first outer conductor 11, one projecting portion 11f projecting toward the inside of the cylinder is provided at each portion sandwiched by two adjacent cut grooves 11 e. This allows the cylindrical body 11a to more reliably contact the outer conductor of the mating connector of the first connector 10.
(first insulating member)
As shown in fig. 6, the first insulating member 12 has, in order from the top of the figure, a cylindrical portion 12a having a large outer diameter, a cylindrical portion 12b having a medium outer diameter, and a cylindrical portion 12c having a small outer diameter. That is, when the outer diameters of columnar portions 12a, 12b, and 12c are L1, L2, and L3, respectively, the relationship of L1 > L2 > L3 is satisfied. The first insulating member 12 has an axial through hole 12d formed in the center thereof, and accommodates the first inner conductor 13 therein.
(second outer conductor)
As shown in fig. 7, the second outer conductor 21 integrally includes a cylindrical portion 21a and a thick annular projection 21b projecting outward from the cylindrical portion 21a at the lower end thereof. In addition, a through hole 21c extending in the axial direction is formed in the center of the second outer conductor 21. A linear projection 21d is formed on the outer peripheral surface of the annular projection 21 b. Thereby, when the second outer conductor 21 is assembled into the housing 2, the annular convex portion 21b can be more reliably brought into contact with the housing 2.
(second insulating member)
As shown in fig. 8, the second insulating member 22 integrally includes a cylindrical portion 22a and an annular projection 22b projecting outward from the cylinder at the lower end of the cylindrical portion 22 a. Further, a hole 22c having a large inner diameter and a hole 22d having a small inner diameter, which extend in the axial direction, are formed continuously in the center of the second insulating member 22 from the upper portion of the figure, and penetrate the second insulating member 22. The second inner conductor 23 is accommodated in the hole 22c and the hole 22 d.
(inner conductor)
As shown in fig. 9 and 10, the inner conductor 3 includes a first inner conductor 13 on the first connector 10 side and a second inner conductor 23 on the second connector 20 side. The first inner conductor 13 and the second inner conductor 23 are connected to each other by a conductive connecting piece 3a so as to be positioned coaxially. Specifically, the first inner conductor 13, the second inner conductor 23, and the connecting piece 3a are integrally formed by bending a single metal plate member as a whole.
As shown in fig. 9 and 10, the first inner conductor 13 has a female contact 13a formed at the lower end of the cylindrical portion 13 c. The female contact 13a has two cut grooves 13b formed in the axial direction, and the distal end side (opening 13e side) of the female contact 13a is inclined inward. This allows the male contact of the mating connector to be elastically held by the female contact 13 a.
As shown in fig. 9 and 10, the second inner conductor 23 has a small-diameter cylindrical portion 23b that functions as a male contact and a large-diameter cylindrical portion 23d for impedance adjustment. A pointed portion 23a is formed at the tip of the small-diameter cylindrical portion 23 b. The small-diameter cylindrical portion 23b and the large-diameter cylindrical portion 23d are connected to each other via an inclined step portion 23 c. The small-diameter cylindrical portion 23b and the pointed portion 23a are fitted as male contacts to female contacts of the mating connector.
As shown in fig. 9 (a) and 10 (a), the connecting piece 3a has a plate-like or strip-like shape and connects the upper end of the first inner conductor 13 and the lower end of the second inner conductor 23. Specifically, the connecting piece 3a connects a part of the entire upper end circumference of the cylindrical wall of the first inner conductor 13 (the cylindrical portion 13c) and a part of the entire lower end circumference of the cylindrical wall of the second inner conductor 23 (the large-diameter cylindrical portion 23 d). That is, the connecting piece 3a is provided offset from the axial center of the first and second inner conductors 13 and 23.
As shown in fig. 10 (a), the connecting piece 3a is inclined with respect to the axial center. By inclining the connecting piece 3a disposed off the axial center in this way, even when the diameter of the first inner conductor 13 is different from that of the second inner conductor 23, the two can be disposed coaxially.
As shown in fig. 9 (e), two plate-like protruding pieces 3b extending in a direction perpendicular to the axial direction (toward the connection point 3 e) are formed on the upper portion of the first inner conductor 13. When the electrical connector 1 is assembled, the plate-like projecting piece 3b is brought into contact with the upper surface 12e of the first insulating member 12 and fixed by the fixing member 4, whereby the inner conductor 3 can be reliably fixed at an appropriate position in the housing 2.
As shown in fig. 9 (e), a cap 3c cut out from the circular hole 3d is provided above the first inner conductor 13 to close the upper end opening of the cylindrical portion 13c of the first inner conductor 13. This prevents the resin forming the fixing member 4 from flowing into the cylindrical portion 13c when the electrical connector 1 is assembled.
As shown in fig. 10 (a), a cut-out portion 13d is formed in a side wall of the cylindrical portion 13c of the first inner conductor 13, and an upper portion of the cut-out portion 13d is formed in a state of slightly protruding outward. Thus, the first inner conductor 13 inserted into the through hole 12d of the first insulating member 12 is less likely to fall off from the through hole 12d during assembly.
(fixing member)
As shown in fig. 11, the fixing member 4 is a columnar member obtained by hardening an insulating resin in the case 2, and surrounds the periphery of the connection piece 3a of the inner conductor 3 to fix the connection piece 3a in the case 2 and reinforce the connection piece 3 a. The fixing member 4 has a recess 4d on the lower surface 4b side, and the plate-like projecting piece 3b of the inner conductor 3 is housed and fixed in the recess 4 d. The fixing member 4 has an annular recess 4c on the upper surface 4a side, and the lower end portion of the second inner conductor 23 is housed and fixed in the annular recess 4 c. As a material constituting the fixing member 4, a resin (for example, an epoxy resin) or various adhesives which exhibits appropriate fluidity when filled into the housing 2 and is excellent in strength, sealing property, and the like after hardening can be used.
As shown in fig. 2, the fixing member 4 divides the space inside the cylinder of the housing 2 into two parts air-tightly or liquid-tightly. Specifically, the first connector 10 and the second connector 20 are electrically connected inside the housing 2, but are separated (sealed) by the fixing member 4 in an airtight or liquid-tight manner.
The first outer conductor 11 and the first insulating member 12, which are components of the first connector 10, are configured such that their maximum outer diameters are equal to or smaller than the minimum inner diameter of the inside of the housing 2 on the second connector 20 side, respectively. Specifically, the outer diameter W1 (see fig. 5) at the projecting portion 11c of the first outer conductor 11 and the outer diameter W2 (see fig. 6) at the cylindrical portion 12a of the first insulating member 12 are smaller than the inner diameters of the third cylindrical portion 2c and the fourth cylindrical portion 2d of the case 2. In short, the outer diameter of the components of the first connector 10 and the inner diameter of the cylindrical interior of the housing 2 may be set so that the components of the first connector 10 can be inserted from the opening 2i of the housing 2 on the second connector 20 side and assembled.
Next, an assembling method of the electrical connector 1 according to the embodiment of the present invention will be described with reference to fig. 3 and the like. The assembly steps are as follows.
(1) First, the first outer conductor 11 is inserted from the opening 2i of the housing 2 on the second connector 20 side, and the lower surface 11d of the projecting portion 11c of the first outer conductor 11 is brought into contact with and fixed to the upper surface of the annular projecting portion 2e of the housing 2.
(2) Next, first insulating member 12 is inserted from opening 2i of housing 2 on the second connector 20 side, columnar portions 12b and 12c of first insulating member 12 are housed inside first outer conductor 11, and lower surface 12f of columnar portion 12a is brought into contact with and fixed to upper end surface 11b of first outer conductor 11.
(3) Next, the first inner conductor 13 of the inner conductor 3 is inserted into the through hole 12d of the first insulating member 12 from the opening 2i of the housing 2 on the second connector 20 side, and the lower end surface of the plate-like projecting piece 3b of the inner conductor 3 is brought into contact with and fixed to the upper surface 12e of the first insulating member 12.
(4) Next, a resin having a desired amount of fluidity is poured onto the upper surface 12e of the first insulating member 12, the connecting pieces 3a, the plate-shaped protruding pieces 3b, and the like of the inner conductor 3 are immersed in the resin, and the resin is cured in this state. Since the upper end opening of the first inner conductor 13 is closed by the cover 3c, the resin does not enter the hollow interior of the first inner conductor 13 when the resin is injected.
(5) Next, the second insulating member 22 is inserted from the opening 2i of the housing 2 on the second connector 20 side, and the lower surface 22e of the annular convex portion 22b of the second insulating member 22 is brought into contact with and fixed to the upper surface of the step portion 2f of the housing 2 and the upper surface 4a of the fixed member 4 obtained by hardening the resin. At this time, the second inner conductor 23 of the inner conductor 3 is inserted into the small inner diameter hole 22d of the second insulating member 22, and the small diameter cylindrical portion 23b (male contact) of the second inner conductor 23 is set in a state of protruding from the large inner diameter hole 22c of the second insulating member 22.
(6) Finally, the second outer conductor 21 is inserted from the opening 2i of the housing 2 on the second connector 20 side, the lower surface 21e of the annular projection 21b of the second outer conductor 21 is brought into contact with the upper surface 22f of the annular projection 22b of the second insulating member 22, and the side surface of the annular projection 21b of the second outer conductor 21 is brought into contact with and fixed to the inner peripheral surface of the third tube portion 2c of the housing 2. At this time, the columnar portion 22a of the second insulating member 22 is fitted into the through hole 21c of the second outer conductor 21. The assembly is completed by the above steps.
Further, when the electrical connector 1 is mounted to a housing or the like, the O-ring 7 is mounted in advance in the groove 6c of the flange 6. In the above-described assembling step, the respective components are assembled in the housing 2 in order, but a plurality of components may be inserted and assembled in the housing 2 in an assembled state. For example, the first insulating member 12 may be inserted and assembled into the housing 2 in a state of being assembled into the first outer conductor 11.
Next, the operation and effect will be explained.
As described above, in the electrical connector 1 according to the present embodiment, the hollow first inner conductor 13 and the hollow second inner conductor 23 are connected to each other by the conductive connecting piece 3a so as to be positioned coaxially. That is, there is no solid columnar portion as in the conventional art, and the structure is simple. Therefore, the metal plate can be manufactured by bending (pressing) or the like, and the manufacturing cost can be reduced as compared with the conventional technique using cutting or die casting.
In the electrical connector 1 according to the present embodiment, the connection piece 3a is fixed in the housing 2 by the fixing member 4 obtained by hardening the resin. This can increase the strength of the portion of the inner conductor 3 having the relatively weak connection piece 3 a. Therefore, the electrical connector 1 according to the present embodiment forms the inner conductor 3 having a simple structure that is inexpensive to manufacture, and does not reduce the strength of the inner conductor 3.
In the electrical connector 1 according to the present embodiment, the first inner conductor 13, the second inner conductor 23, and the connecting piece 3a are integrally molded from a single metal plate material. With this configuration, the electrical connector 1 of the present embodiment can be manufactured by bending (pressing) or the like of one metal plate material, unlike the conventional manufacturing by cutting or die casting, and the manufacturing cost can be reduced as compared with the conventional one.
Further, the electrical connector 1 according to the present embodiment includes: a flange 6 provided on the outer periphery of the housing 2; and an O-ring 7 housed in a groove 6c formed in one surface of the flange 6 so as to surround the housing 2; the fixing member 4 is a structure that divides the space inside the cylinder of the housing 2 into two parts in a gas-tight or liquid-tight manner. With this configuration, the electrical connector 1 according to the present embodiment can prevent water in a gas or liquid state from entering the housing 2 from one connector side to the other connector side, and can prevent water in a gas or liquid state from entering a gap between the flange 6 and a panel (such as the rear case 30) to which the flange 6 is attached.
In the electrical connector 1 according to the present embodiment, the maximum outer diameter of the first outer conductor 11 and the maximum outer diameter of the first insulating member 12 are equal to or smaller than the minimum inner diameter of the inside of the other end side of the housing 2. With this configuration, the electrical connector 1 according to the present embodiment can assemble all the components from the side of the one opening 2i (the other end side) of the housing 2. Therefore, it is not necessary to perform a work such as turning the case 2 upside down in the assembling process, and thus the manufacturing becomes easy.
(other embodiments)
Although the case 2 made of a conductor is used in the above embodiment, an insulating case made of resin or the like may be used. In this case, a conductive connecting member for electrically connecting the first outer conductor 11 and the second outer conductor 21 may be provided, or the first outer conductor 11 and the second outer conductor 21 may be integrated.
As described above, the present invention has an effect of providing the inner conductor having a simple structure that is inexpensive to manufacture without reducing the strength of the inner conductor, and is useful for the electric connector as a whole.
Claims (2)
1. An electrical connector in which a first connector is formed on one end side of a cylindrical housing and a second connector is formed on the other end side of the housing,
the first connector includes: a cylindrical first outer conductor provided inside the one end side of the housing; and a hollow first inner conductor provided coaxially with the first outer conductor with a first insulating member interposed therebetween on an inner side of the first outer conductor;
the second connector includes: a cylindrical second outer conductor provided inside the other end side of the housing and electrically connected to the first outer conductor; and a hollow second inner conductor provided coaxially with the second outer conductor through a second insulating member inside the second outer conductor;
the first inner conductor and the second inner conductor are connected to each other by a conductive connecting piece at a coaxial position, the connecting piece is fixed in the housing by a fixing member obtained by hardening a resin,
the first inner conductor, the second inner conductor, and the connecting piece are integrally formed of a metal plate,
the electrical connector includes: a flange provided on an outer periphery of the housing; and a seal member housed in a groove formed in one surface of the flange so as to surround the housing;
the fixing member divides the space inside the cylinder of the housing into two parts hermetically or liquid-tightly,
the fixing part surrounds the connecting sheet and fixes the connecting sheet in the shell,
the fixing member has an annular recess, and the lower end portion of the second inner conductor is housed and fixed in the annular recess.
2. The electrical connector of claim 1,
the maximum outer diameter of the first outer conductor and the maximum outer diameter of the first insulating member are equal to or smaller than the minimum inner diameter of the inside of the other end side of the housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-164125 | 2017-08-29 | ||
| JP2017164125A JP6565990B2 (en) | 2017-08-29 | 2017-08-29 | Electrical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109428217A CN109428217A (en) | 2019-03-05 |
| CN109428217B true CN109428217B (en) | 2020-06-09 |
Family
ID=65514259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441804.5A Active CN109428217B (en) | 2017-08-29 | 2017-12-27 | Electrical connector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6565990B2 (en) |
| KR (1) | KR102449423B1 (en) |
| CN (1) | CN109428217B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113437565A (en) * | 2020-03-19 | 2021-09-24 | 泰科电子(上海)有限公司 | Cable connector, panel connector, circuit board connector and connector assembly |
| EP4343975A1 (en) | 2021-05-19 | 2024-03-27 | Yamaichi Electronics Co., Ltd. | Connector, connector assembly, camera module, and assembly method |
| CN113540880B (en) * | 2021-07-09 | 2024-03-22 | 杭州海康威视数字技术股份有限公司 | Cable assembly and camera |
| JP7227546B1 (en) | 2022-03-07 | 2023-02-22 | 山一電機株式会社 | connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817787U (en) * | 1981-07-28 | 1983-02-03 | 昭和無線工業株式会社 | plug adapter |
| CN101867134A (en) * | 2010-03-23 | 2010-10-20 | 贵州航天电器股份有限公司 | Triaxial switching contact element |
| CN203660214U (en) * | 2013-12-13 | 2014-06-18 | 陕西华达通讯技术有限公司 | High-speed high-frequency radio frequency connector |
| CN205376800U (en) * | 2015-12-21 | 2016-07-06 | 电连技术股份有限公司 | On -vehicle patch cable assembly connector |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1490133B2 (en) * | 1964-02-18 | 1971-01-14 | Omni Spectra Inc , Detroit, Mich (VStA) | Coaxial coupling piece |
| TWI241757B (en) | 2003-05-16 | 2005-10-11 | Parry Chen | RF coaxial conductor |
| JP4943485B2 (en) * | 2009-10-14 | 2012-05-30 | 日本航空電子工業株式会社 | Coaxial connector |
| KR101189670B1 (en) * | 2011-04-27 | 2012-10-11 | (주)기가레인 | Connecter for connecting between coaxial cables |
-
2017
- 2017-08-29 JP JP2017164125A patent/JP6565990B2/en active Active
- 2017-12-19 KR KR1020170174836A patent/KR102449423B1/en active IP Right Grant
- 2017-12-27 CN CN201711441804.5A patent/CN109428217B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5817787U (en) * | 1981-07-28 | 1983-02-03 | 昭和無線工業株式会社 | plug adapter |
| CN101867134A (en) * | 2010-03-23 | 2010-10-20 | 贵州航天电器股份有限公司 | Triaxial switching contact element |
| CN203660214U (en) * | 2013-12-13 | 2014-06-18 | 陕西华达通讯技术有限公司 | High-speed high-frequency radio frequency connector |
| CN205376800U (en) * | 2015-12-21 | 2016-07-06 | 电连技术股份有限公司 | On -vehicle patch cable assembly connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019040833A (en) | 2019-03-14 |
| JP6565990B2 (en) | 2019-08-28 |
| CN109428217A (en) | 2019-03-05 |
| KR20190024550A (en) | 2019-03-08 |
| KR102449423B1 (en) | 2022-09-29 |
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