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Connector

A technology of connectors and terminal fittings, which is applied in the field of connectors and can solve problems such as narrow locking parts

Inactive Publication Date: 2004-04-07
SUMITOMO WIRING SYST LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the locking portion needs to be formed narrower

Method used

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Experimental program
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no. 1 example

[0034] Reference attached Figures 1 to 9 A first embodiment of the present invention is described. In this embodiment, a female connector is described, in which one or more female terminal fittings 10 are at least partially inserted into the cavity 31 in the insertion direction ID, the cavity 31 in the female connector housing 30 (hereinafter referred to as "female shell"), such as figure 1 with 2 shown. Hereinafter, the mating side of the female connector housing 30 mated with a mating male connector housing (not shown) or the mating side of the female terminal fitting 10 mated with a male fitting (not shown) is referred to as a front side.

[0035] First, the female terminal fitting 10 will be described. By punching, folding, molding, cutting or stamping (stamp) a metal plate with good conductivity, the female terminal fittings 10 are formed as Figures 1 to 3 the shape shown. More specifically, one or more sleeve parts 12 are formed substantially in the form of recta...

no. 2 example

[0063] Figure 10 with 11 A second preferred embodiment of the invention is shown. This second embodiment can be considered as a modification of the first embodiment.

[0064] In the first embodiment, when the locking surface 24 engageable with the locking portion 40 is provided in the female terminal fitting 10, the cut-out portion 21 is preferably formed over substantially the entire width inside the outer wall 19 of the top wall 16 of the female terminal fitting 10. . This enables the cut end surface 22 preferably extending over substantially the entire width of the female terminal fitting 10 except the rear end surface 23A of the locking protrusion 23 to serve as the locking surface 24 and is effective in increasing the locking area. On the other hand, because the outer wall 19 of top wall 16 is completely divided into a front part, a rear part and the cutout part 21 therebetween, it can be specifically understood that the front part engaged with the locking part 40 is ...

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PUM

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Abstract

A locking portion (40) resiliently engageable with a locking surface (24) of a female terminal fitting (10) is formed at a bottom wall (35) of a cavity (31) to project forward while being supported only at one end. An insertion groove (49) for permitting the passage of a locking projection (23) of the female terminal fitting (10) is formed in an upper surface (44) of the locking portion (40). The depth of the insertion groove (40) is made larger at the bottom end of an inclined section of a bottom (50) thereof than at the other part, thereby forming a thinned portion (52). When a backward pulling force acts on the female terminal fitting (10) engaged with the locking portion (40), a compressive force acts on the locking portion (40) in longitudinal direction. However, the locking portion (40) undergoes such a resilient deformation that the length thereof becomes L1 which is shorter than its natural length L0 while being bent at the thinned portion (52). Buckling strength is enhanced by as much as the locking portion (40) is shortened and, as a result, a force for locking the female terminal fitting (10) is enhanced.

Description

technical field [0001] The invention relates to a connector capable of improving the locking force of a locking part. Background technique [0002] An example of such a connector is known from Japanese Laid-Open Unexamined Patent No. 4-115475. This connector is constructed such that the connector housing is formed with a cavity into which terminal fittings can be inserted from the rear, and a locking portion extending forward while being supported at only one end is provided on one side of the entire cavity. Inserting the terminal fitting elastically deforms the locking portion, and when the terminal fitting is inserted a prescribed distance, the locking portion elastically returns to engage its front end with the terminal fitting, thus preventing the terminal fitting from coming off. [0003] On the other hand, miniaturization of connectors has become urgent in recent years, and accordingly terminal fittings and cavities are formed smaller. As a result, the locking portio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R13/42H01R13/422
CPCH01R13/4223
Inventor 深津幸弘市田清文藤田伸也
Owner SUMITOMO WIRING SYST LTD