JP3783797B2 - Electrical connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electrical connector having a fixing member for fixing a flexible locking piece for locking an electric terminal.
[0002]
[Prior art]
Conventionally, as shown in FIG. 5, for example, as a connector for fixing a flexible locking piece for locking an electric terminal with a fixing member by inserting a fixing member into the housing main body after housing the electric terminal in the housing main body. The one is known (see Japanese Utility Model Laid-Open No. 1-64872).
This connector 100 has a terminal accommodating chamber 102 for accommodating an electric terminal 105 inside a housing body 101, and the upper rear end of the electric terminal 105 is locked to the upper part of the terminal accommodating chamber 102 to the rear of the electric terminal 105. A flexible locking piece 103 is formed to prevent the slipping off.
Then, after the electric terminal 105 is accommodated in the terminal accommodating chamber 102 of the housing body 101, the fixing member 106 is inserted from the front into the space 104 formed above the flexible locking piece 103. The flexible locking piece 103 for locking is fixed.
[0003]
[Problems to be solved by the invention]
By the way, in this conventional connector 100, the side wall which partitions the adjacent terminal storage chamber 102 exists in the horizontal position corresponding to the side of the flexible locking piece 103. FIG.
On the other hand, in order to form the flexible locking piece 103 by injection molding, a space of a predetermined width is required in which the counterpart mold is inserted at a corresponding horizontal position on the side of the flexible locking piece 103. .
For this reason, in the conventional connector 100, the width of the flexible locking piece 103 cannot be increased, and the holding force for the electric terminal 105 after the electric terminal 105 is accommodated in the terminal accommodating chamber 102 is weakened. There was a problem that it was.
[0004]
Therefore, an object of the present invention is to make it possible to increase the width of the flexible locking piece, and to form an electric connector having a strong holding force for the electric terminal after the electric terminal is accommodated in the terminal accommodating chamber in a compact shape. It is to provide.
[0005]
[Means for Solving the Problems]
Electrical connector according to the present invention, the flexible engagement with the Ruha Ujingu which having a plurality of terminal accommodating chambers, and a flexible locking piece which are provided in said terminal receiving chambers, are accommodated in the terminal accommodating chamber an electrical terminal to be engaged in locking piece, the horizontal part comprising a fixed member, corresponding to the flexible locking piece of the side wall between the terminal accommodating chambers adjacent to each other in the housing, the terminal housing chamber In the electrical connector in which a notch that communicates with each other is formed, and a partition wall that is inserted into the notch of the housing and partitions the terminal accommodating chamber is provided in the fixing member, the flexible locking piece includes the housing The terminal housing chamber is integrally extended with the housing from the wall of the terminal housing chamber to the terminal housing chamber, and the fixing member has a temporary locking position and a final locking position with respect to the housing, and the terminal receiving chamber Wall and said A fixing portion that is inserted into a space formed between the flexible locking pieces, and at the temporary locking position of the fixing member, the electrical terminal is inserted into the terminal accommodating chamber and the flexible locking piece The electric terminal can be locked, and the fixing portion enters the space and fixes the flexible locking piece when the fixing member moves to the main locking position . .
[0006]
It is more effective if the partition wall of the fixing member is provided with a terminal support portion that supports the side wall of the electric terminal accommodated in the terminal accommodating chamber.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. 1A and 1B show an electrical connector of the present invention, in which FIG. 1A is a longitudinal sectional view of the electrical connector, FIG. 1B is a sectional view taken along line 1B-1B of FIG. The state accommodated in the room is shown.
[0008]
In FIG. 1, an electrical connector 1 includes a housing 10 having a plurality of terminal accommodating chambers 12 in a housing body 11 and a flexible locking piece 15 provided in each terminal accommodating chamber 12, and each of the housings 10. A plurality of electrical terminals 30 housed in the terminal housing chamber 12 and locked to the flexible locking piece 15 and a fixing member 40 for fixing the flexible locking piece 15 are provided.
[0009]
FIG. 2 shows a housing, (A) is a plan view of the housing, (B) is a right side view of the housing, and (C) is a front view of the housing. 3A and 3B show a housing, wherein FIG. 3A is a cross-sectional view taken along line 3A-3A in FIG. 2C, and FIG. 3B is a cross-sectional view taken along line 3B-3B in FIG.
In these drawings, the housing 10 includes a housing main body 11 having a plurality (five in the present embodiment) of terminal housing chambers 12, and the housing main body 11 is formed by injection molding. As shown in FIGS. 2C and 3B, two terminal accommodating chambers 12, 12 at the right end (the right end in FIG. 2C) are provided in parallel in the vertical direction. Each terminal accommodating chamber 12 is formed with a flexible locking piece 15 projecting forward from the upper wall of the terminal accommodating chamber 12 (leftward in FIG. 3B), and above the flexible locking piece 15. A space 24 into which the fixing portion 46 of the fixing member 40 is inserted is formed. Further, a notch 14 for communicating the terminal accommodating chambers 12, 12 with the horizontal portion corresponding to the flexible locking piece 15 of the side wall 13 between the adjacent terminal accommodating chambers 12, 12 is rearward from the front end of the housing body 11. In the horizontal portion corresponding to the flexible locking pieces 15 of the side walls 25, 25 of the right and left terminal receiving chambers 12, 12, the recesses 16, 16 are formed rearward from the front end of the housing body 11. It is formed to extend. A mating die (not shown) for forming the flexible locking piece 15 is inserted into the notch 14 and the recess 16 at the time of molding. On the other hand, a fixing member receiving recess 17 for receiving the fixing member 40 is formed at the front end of the housing body 11, and a temporary locking protrusion for temporarily locking the fixing member 40 on the upper wall of the housing body 11. The main locking projections 22 are provided so as to protrude from the front end of the housing body 11 in order to truly lock the 23 and the fixing member 40. A mating connector locking piece 20 having a locking hole 21 for locking the mating connector when the mating connector (not shown) is fitted to the rear end of the upper wall of the housing body 11 is forward. The first gripping part 18 and the second gripping part 19 for releasing the locking with the mating connector are respectively formed at the rear end of the mating connector locking piece 20 and the lower wall rear end of the housing body 11. Projectingly formed.
[0010]
As shown in FIG. 1, the electrical terminal 30 includes a mating terminal connection portion 31 into which a mating connector terminal (not shown) is fitted and connected, and a wire connection portion 32 into which an electric wire is crimped.
[0011]
4A and 4B show a fixing member, FIG. 4A is a front view of the fixing member, FIG. 4B is a rear view of the fixing member, FIG. 4C is a cross-sectional view taken along line 4C-4C in FIG. Sectional drawing along the 4D-4D line of (B), (E) is sectional drawing along the 4E-4E line of (B), (F) is a top view of a fixing member.
[0012]
In FIG. 4, the fixing member 40 includes a fixing member body 41 having a plurality of mating terminal insertion holes 42 through which the terminals of the mating connector can be inserted, and the fixing member body 41 is formed by injection molding. The mating terminal insertion hole 42 is provided at a position corresponding to the terminal accommodating chamber 12 of the housing 10. Above each mating terminal insertion hole 42 of the fixing member main body 41, a plurality of (five in this embodiment) fixing portions 46 are inserted into the space 24 formed above the flexible locking piece 15 of the housing 10. Projectingly formed. A plurality of (three in the present embodiment) partition walls 43 that project into the recesses 16 of the housing 10 and partition the terminal accommodating chambers 12 are formed below the fixed portions 46. In front of each partition wall 43, partition portions 45 formed with relief recesses 45 a for preventing interference with the flexible locking pieces 15 at the time of insertion into the notch 14 of the housing 10 are provided on both sides. The terminal support part 44 which supports the side wall of the other party terminal connection part 31 of the electric terminal 30 accommodated in the terminal accommodating chamber 12 on both sides is provided in the back. Further, a locking piece 47 for locking to the housing 10 is formed on the upper portion of the fixing member main body 41 so as to protrude substantially parallel to the fixing portion 46, and the fixing member 40 is temporarily locked to the locking piece 47. The temporary locking hole 49 and the final locking hole 48 for truly locking the fixing member 40 are formed. The temporary locking holes 49 are longer than the main locking holes 48 in the fixing member insertion direction.
[0013]
Next, assembly of the electrical connector 1 will be described with reference to FIGS. First, the fixing member 40 is pushed from the front of the housing 10, the temporary locking hole 49 of the fixing member 40 is engaged with the temporary locking protrusion 23 of the housing 10, and the fixing member 40 is temporarily locked to the housing 10. .
[0014]
Next, in this state, a plurality of electric terminals 30 in which electric wires (not shown) are crimped and connected to the electric wire connection portion 32 are inserted from the rear of each terminal accommodating chamber 12 of the housing 10, and the electric terminals 30 are inserted into the terminal accommodating chamber 12. To house. By inserting the electric terminal 30 into the terminal accommodating chamber 12, the tip of the flexible locking piece 15 formed above the terminal accommodating chamber 12 is engaged with the upper rear end of the mating terminal connecting portion 31 of the electric terminal 30. Thus, the electrical terminal 30 is prevented from coming out backward with respect to the housing 10. Here, a notch 14 for communicating the terminal accommodating chambers 12, 12 is formed on the side wall 13 between the terminal accommodating chambers 12, 12 adjacent to each other, and a flexible locking piece 15 is formed in the notch 14 at the time of molding. Since the mating die for forming is inserted, the width of the flexible locking piece 15 can be made the full width of the terminal accommodating chamber 12. For this reason, the holding force with respect to the electrical terminal 30 of the flexible locking piece 15 after the flexible locking piece 15 is engaged with the electrical terminal 30 is strong, and the electrical terminal 30 does not easily come out of the housing 10. It has become.
[0015]
Then, the fixing member 40 is further pushed into the housing 10, and the fixing portion 46 of the fixing member 40 is inserted into the space 24 formed above the flexible locking piece 15, and the main locking hole 48 of the fixing member 40 is inserted. Is engaged with the main locking protrusion 22 of the housing 10 to perform the main locking of the fixing member 40 to the housing 10. Thereby, the upward movement of the flexible locking piece 15 is regulated by the fixing portion 46 and the flexible locking piece 15 is fixed. On the other hand, as shown in FIG. 1B, each partition wall 43 of the fixing member 40 is inserted into each notch 14 of the housing 10, and the terminal accommodating chambers 12, 12 are partitioned by this partition wall 43. For this reason, there is no danger that the adjacent electrical terminals 30 contact each other. Further, when the partition wall 43 is inserted into the notch 14, the terminal support portion 44 of the partition wall 43 supports the side wall of the mating terminal connection portion 31 of the electrical terminal 30. For this reason, the electric terminal 30 does not wobble to the side (vertical direction in FIG. 1B).
[0016]
【The invention's effect】
According to the electrical connector of the first aspect of the present invention, the notch that allows the terminal accommodating chambers to communicate with each other is formed in the horizontal portion corresponding to the flexible locking piece on the side wall between the adjacent terminal accommodating chambers. It is possible to insert a mating die for forming a flexible locking piece into the notch. For this reason, the lateral width of the flexible locking piece can be taken to the full width of the terminal accommodating chamber, and the holding force of the flexible locking piece with respect to the electrical terminal after the flexible locking piece is engaged with the electrical terminal is: The electrical terminal does not easily come out of the housing, and the overall size of the electrical connector becomes compact. Further, since the fixing member is provided with a partition wall which is inserted into the notch of the housing and partitions the terminal accommodating chamber, the adjacent electrical terminals are not short-circuited.
[0017]
According to the electrical connector of the second aspect, since the terminal support portion for supporting the side wall of the electrical terminal accommodated in the terminal accommodating chamber is provided on the partition wall of the fixing member, in addition to the above effect, the electrical terminal Will not wobble to the side.
[Brief description of the drawings]
FIG. 1 shows an electrical connector of the present invention, wherein (A) is a longitudinal sectional view of the electrical connector, (B) is a sectional view taken along line 1B-1B of (A), and only one electrical terminal is a terminal. The state accommodated in the accommodation chamber is shown.
2 shows a housing of the electrical connector shown in FIG. 1, (A) is a plan view of the housing, (B) is a right side view of the housing, and (C) is a front view of the housing.
3 shows a housing of the electrical connector shown in FIG. 1, (A) is a cross-sectional view taken along line 3A-3A in FIG. 2 (C), and (B) is taken along line 3B-3B in FIG. 2 (C). FIG.
4 shows a fixing member of the electrical connector shown in FIG. 1, wherein (A) is a front view of the fixing member, (B) is a rear view of the fixing member, and (C) is along the line 4C-4C in (B). (D) is a cross-sectional view taken along line 4D-4D in (B), (E) is a cross-sectional view taken along line 4E-4E in (B), and (F) is a plan view of the fixing member. is there.
5A and 5B show a conventional connector, in which FIG. 5A is a longitudinal sectional view of a fixing member, and FIG. 5B is a longitudinal sectional view of a housing body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electrical connector 10 Housing 12 Terminal accommodating chamber 13 Side wall 14 Notch 15 Flexible locking piece 30 Electric terminal 40 Fixing member 43 Partition wall 44 Terminal support part

Claims (2)

And Ruha Ujingu which having a plurality of terminal accommodating chambers, wherein the terminal receiving chamber resilient locking pieces respectively provided, electricity is engaged with the flexible locking piece with is accommodated in the terminal accommodating chamber comprising a terminal, and a fixed member, the horizontal portion corresponding to the flexible locking piece of the side wall between the terminal accommodating chambers adjacent to each other of the housing to form a notch that communicates between the terminal accommodating chamber In the electrical connector provided with a partition wall, which is inserted into the notch of the housing and partitions the terminal accommodating chamber, in the fixing member ,
The flexible locking piece extends integrally with the housing from the wall of the terminal accommodating chamber of the housing into the terminal accommodating chamber,
The fixing member has a temporary locking position and a final locking position with respect to the housing, and has a fixing portion that is inserted into a space formed between the wall of the terminal accommodating chamber and the flexible locking piece. And
In the temporary locking position of the fixing member, the electric terminal can be inserted into the terminal accommodating chamber and the electric terminal can be locked by the flexible locking piece, and the fixing member is moved to the final locking position. The electrical connector according to claim 1, wherein the fixing portion enters the space and fixes the flexible locking piece during the transition .   The electrical connector according to claim 1, wherein a terminal support portion that supports a side wall of the electrical terminal housed in the terminal housing chamber is provided on the partition wall of the fixing member.

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