A connector housing according to an embodiment of the present invention will be explained with reference to
As shown in
As shown in
The connector housing includes a terminal locking lance 9 having a locking part 8 to lock the terminal fitting 3 received in the terminal receiving chamber 1. The locking part 8 is formed at a top end of the terminal locking lance 9 in the insertion direction Y12.
Each terminal locking lance 9 includes a supported part 10 at a rear end thereof in the insertion direction Y12. The supported part 10 is supported at a top wall 11 of the standing wall 5 partitioning the terminal receiving chamber 1. Thus, the locking part 8 of the terminal locking lance 9 is disposed over the top wall 11 of the standing wall 5. Incidentally, the top wall 11 of the standing wall 5 is a wall opposed to the bottom wall 4 of the standing wall 5 in a standing direction Y13. As shown in
Further, the terminal locking lance 9 includes a lance locking projection 12 mounted on the top wall 11 of the standing wall 5 at the top end of the terminal locking lance 9. The lance locking projection 12 is disposed at the further top end of the terminal locking lance 9 than the locking part 8. Further, the standing wall 5 includes a standing wall locking projection 13 for locking the lance locking projection 12 when the terminal locking lance 9 is pulled toward the rear end in the insertion direction Y12. The standing wall locking projection 13 is formed on the top wall 11 at the further rear end of the terminal locking lance 9 in the insertion direction Y12 than the lance locking projection 12, and opposed to the lance locking projection 12. Consequently, the lance locking projection 12 and the standing wall locking projection 13 are opposed to each other with a gap in the insertion direction Y12. Further, the lance locking projection 12 is formed at the top end side in the insertion direction Y12, and the standing wall locking projection 13 is formed at the rear end side in the insertion direction Y12.
Slits 14, 15 are formed on the terminal locking lance 9 in the insertion direction Y12. The slit 14 is formed in the center of the terminal locking lance 9 in the direction Y11 at the rear end side of the terminal locking lance 9. The slit 15 is formed between the adjacent terminal locking lances 9 at the top end side of the terminal locking lance 9. Owing to the slits 14, 15, the terminal locking lance 9 is easily bendable in the standing direction Y13. The standing wall locking projection 13 is inserted into the slit 15.
Next, a structure of the terminal fitting 3 will be explained. As shown in
Next, a way to receive the terminal fitting 3 in the terminal receiving chamber 1 of the connector housing will be explained. The terminal fitting 3 is inserted into the terminal receiving chamber 1 through the receiving terminal insertion hole 7 formed on the rear end of the connector housing, and moved toward the top end of the connector housing along the bottom wall 4. When the terminal locking projection 18 is moved to the terminal locking lance 9 and to the further top end side than the slit 14, the terminal locking lance 9 is bent upward.
At this time, the lance locking projection 12 and the standing wall locking projection 13 do not interfere with each other, and the standing wall locking projection 13 does not interfere with the insertion of the terminal fitting 3. Namely, a gap in the insertion direction Y12 is formed between the lance locking projection 12 and the standing wall locking projection 13 so as to allow the terminal locking lance 9 to be bent upward when the terminal fitting 3 is inserted into the terminal receiving chamber 1.
When the terminal fitting 3 is further moved and the terminal locking projection 18 reaches the further top end side than the locking part 8 of the terminal locking lance 9, the terminal locking lance 9 is restored downward, and the locking part 8 of the terminal locking lance 9 is locked with the terminal locking projection 18 of the terminal fitting 3. Thus, even when the terminal fitting 3 is pulled toward the rear end in the insertion direction Y12, the terminal fitting 3 does not come out from the terminal receiving chamber 1 because the terminal locking projection 18 is locked with the locking part 8 of the terminal locking lance 9.
Further, as described the above, the lance locking projection 12 formed on the terminal locking lance 9 is disposed at the top end side, and the standing wall locking projection 13 formed on the standing wall 5 is disposed at the rear end side in the insertion direction Y12. The lance locking projection 12 and the standing wall locking projection 13 are opposed to each other in the insertion direction Y12. Therefore, when the terminal fitting 3 received in the terminal receiving chamber 1 is pulled toward the rear end in the insertion direction Y12, the lance locking projection 12 abuts on the standing wall locking projection 13, and a force to move toward the top end in the insertion direction Y12 is added to the terminal locking lance 9. Resultingly, the pulling force is canceled, and the terminal locking lance 9 is hard to be buckled. Namely, in the connector housing having the above described structure, the terminal locking lance 9 is not buckled, and a holding power of the terminal locking lance 9 for holding the terminal fitting 3 is not reduced.
Further, according to the above, because the standing wall locking projection 13 is inserted into the slit 15 formed between the adjacent terminal locking lances 9, the terminal locking lance 9 is easy to be buckled due to the pulling force. However, because the lance locking projection 12 abuts on the standing wall locking projection 13, the pulling force is canceled. Resultingly, the terminal locking lance 9 is hard to be buckled.
Incidentally, according to this embodiment, nine terminal receiving chambers 1 are formed on the connector housing. However, the present invention is not limited to this. For example, one terminal receiving chamber 1 may be formed. More than nine terminal receiving chambers 1 may be formed.
Further, according to this embodiment, the lance locking projection 12 is formed on both top walls 11 of the standing walls 5 partitioning the terminal receiving chamber 1. However, the present invention is not limited to this. The lance locking projection 12 may be formed on at least one top wall 11 of the standing wall 5. However, when the lance locking projection 12 formed on both top walls 11, the terminal locking lance 9 is harder to be buckled.
Further, according to this embodiment, the lance locking projection 12 is formed on the terminal locking lance 9 that is easily buckled owing to a low shaped connector housing having slits 14, 15. However, the present invention is not limited to this. For example, as shown in
Further, according to this embodiment, the lance locking projection 12 is formed at the top end of the terminal locking lance 9. However, the present invention is not limited to this. The lance locking projection 12 may be formed on anywhere as long as it is at the further top side than the supported part 10.
Although the present invention has been fully described by way of example with reference to the accompanying drawings, it is to be understood that various changes and modifications will be apparent to those skilled in the art. Therefore, unless otherwise such changes and modifications depart from the scope of the present invention hereinafter defined, they should be construed as being included therein.
Number | Date | Country | Kind |
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2006-243668 | Sep 2006 | JP | national |