Coaxial connector with efficient assembly operation

• US 8,079,870 B2
• Filed: 01/26/2009
• Issued: 12/20/2011
• Est. Priority Date: 01/30/2008
• Status: Expired due to Fees

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Morikawa, Taishi, Nakamura, Masatoshi
• Primary Examiner(s): HYEON, HAE M
• Application Number:
  US12/864,259
• Publication Number:
  US 20100297877A1
• Time in Patent Office: 1,058 Days
• Field of Search: 439/585, 439/877, 439/98
• US Class Current: 439/585
• CPC Class Codes: H01R 4/185 combined with a U-shaped insulation-receiving portion
• CPC Class Codes: H01R 9/0518 Connection to outer conductor by crimping or by crimping ferrule
• CPC Class Codes: Y10T 29/49123 Co-axial cable

Abstract

To provide a coaxial connector and an assembling method of the coaxial connector in which an operation efficiency can be enhanced, and also facilities related to the assembling can be simplified. The coaxial connector is assembled through a first step of assembling an insulator assembly, a second step of setting the insulator assembly in an outer conductor terminal through an upper opening portion of the outer conductor terminal from a direction perpendicular to a terminal axis thereof, and a third step of holding an insulator of the insulator assembly by press-crimping a pair of press-crimping pieces for insulator holding and effecting the connection and fixing to a coaxial cable of the insulator assembly by press-crimping a pair of press-crimping pieces for braid connection and a pair of press-crimping pieces for sheath fixation.

Claims

1. A coaxial connector comprising:

an insulator assembly including a coaxial cable having a core wire and a braid disposed at the outside of the core wire, an inner conductor terminal having a core wire connection portion connected to the core wire, and an insulator receiving and holding the inner conductor terminal therein;

an outer conductor terminal of a substantially cylindrical shape which has an opening portion for setting the insulator assembly from a direction perpendicular to a longitudinal axis of the outer conductor terminal, and holds the insulator assembly;

a pair of press-crimping pieces for braid connection which are formed at the outer conductor terminal, and are connected to the braid; and

a pair of press-crimping pieces for insulator holding which hold the insulator at an opening edge of the opening portion,

wherein the outer conductor terminal has a plurality of spring structural portions for connection to a mating connector, the plurality of spring structural portions being formed at a base portion of the outer conductor terminal disposed at a side opposite from the opening portion and on which the insulator assembly is set, and the spring structural portions being disposed forwardly of the position of the pair of press-crimping pieces for insulator holding.

2. The coaxial connector as set forth in claim 1, wherein a U-shaped slit is formed on the base portion of the outer conductor terminal on the opposite side from the opening portion.

3. The coaxial connector as set forth in claim 1, wherein a retaining hole is formed on the base portion of the outer conductor terminal on the opposite side from the opening portion.

4. A coaxial connector comprising:

an insulator assembly including a coaxial cable having a core wire and a braid disposed at the outside of the core wire, an inner conductor terminal having a core wire connection portion connected to the core wire, and an insulator receiving and holding the inner conductor terminal therein;

an outer conductor terminal of a substantially cylindrical shape which has an opening portion for setting the insulator assembly from a direction perpendicular to a longitudinal axis of the outer conductor terminal, and holds the insulator assembly;

a pair of press-crimping pieces for braid connection which are formed at the outer conductor terminal, and are connected to the braid; and

a pair of press-crimping pieces for insulator holding which hold the insulator at an opening edge of the opening portion,

wherein

the insulator has annular flange portions formed respectively at front and rear sides of a held portion held by the pair of press-crimping pieces for insulator holding and

the pair of press-crimping pieces for insulator holding are formed into an inwardly-inclined shape so that their distal end gap conforms to a diameter of the held portion and that their side portions abut against the front and rear flange portions.

5. A method of assembling a coaxial connector, comprising:

a first step of assembling a coaxial cable, an inner conductor terminal and an insulator together to form an insulator assembly;

a second step of setting the insulator assembly through an opening portion of a substantially-tubular outer conductor terminal from a direction perpendicular to a longitudinal axis of the outer conductor terminal; and

a third step of holding the insulator of the insulator assembly by press-crimping a pair of press-crimping pieces for insulator holding formed at an opening edge of the opening portion, and effecting the connection to a braid of the coaxial cable of the insulator assembly by press-crimping a pair of press-crimping pieces for braid connection disposed rearwardly of the opening portion,

wherein the outer conductor terminal has a plurality of spring structural portions for connection to a mating connector, the plurality of spring structural portions being formed at a base portion of the outer conductor terminal disposed at a side opposite from the opening portion and on which the insulator assembly is set, and the spring structural portions being disposed forwardly of the position of the pair of press-crimping pieces for insulator holding.

6. A method of assembling a coaxial connector comprising:

a first step of assembling a coaxial cable, an inner conductor terminal and an insulator together to form an assembly;

a second step of setting the insulating assembly through an opening of a substantially-tubular outer conductor terminal from a direction perpendicular to a longitudinal axis of the outer conductor terminal; and

a third step of holding the insulator of the insulator assembly by press-crimping a pair of press-crimping pieces for insulator holding formed at an opening edge of the opening portion, and effecting the connection to a braid of the coaxial cable of the insulator assembly by press-crimping a pair of press-crimping pieces for braid connection disposed rearwardly of the opening portion,

wherein the insulator has annular flange portions formed respectively at front and rear sides of a held portion held by the pair of press-crimping pieces for insulator holding, and

the pair of press-crimping pieces for insulator holding are formed into an inwardly-inclined shape so that their distal end gap conforms to a diameter of the held portion and that their side portions abut against the front and rear flange portions.