Connector with a locking member
阅读说明:本技术 连接器 (Connector with a locking member ) 是由 近藤悠城 陈龙 于 2020-03-10 设计创作,主要内容包括:本发明提供一种连接器,其防止端子发生破损的情况,并且防止容易产生端子的脱落的情况。本公开的连接器是安装于电线的端部的连接器(10),具备端子(20)和壳体,壳体具有端子收容部(38),端子收容部(38)形成为包括一对侧壁和前壁(36),一对侧壁沿着端子(20)配置,前壁(36)设置在一对侧壁的前端部之间,端子收容部(38)具有端子收容开口(40),端子收容开口(40)能够供端子(20)从与电线的导出方向交叉的交叉方向插入,一对侧壁中的至少一个侧壁具有端子卡定部(42),端子卡定部(42)从侧壁突出形成,形成有端子卡定部(42)的侧壁与前壁(36)被分割。(The invention provides a connector, which prevents a terminal from being damaged and easily falling off. The connector is a connector (10) mounted on an end of an electric wire, and is provided with a terminal (20) and a housing, wherein the housing is provided with a terminal receiving portion (38), the terminal receiving portion (38) is formed to include a pair of side walls and a front wall (36), the pair of side walls are arranged along the terminal (20), the front wall (36) is arranged between the front ends of the pair of side walls, the terminal receiving portion (38) is provided with a terminal receiving opening (40), the terminal receiving opening (40) can be inserted by the terminal (20) from a cross direction crossed with a lead-out direction of the electric wire, at least one side wall of the pair of side walls is provided with a terminal blocking portion (42), the terminal blocking portion (42) is formed by protruding from the side wall, and the side wall formed with the terminal blocking portion (42).)
1. A connector is mounted on an end portion of an electric wire, wherein,
the connector comprises at least one terminal and a resin housing,
the terminal is connected to a terminal end of the electric wire,
the housing has at least one terminal receiving portion,
the terminal housing part is formed to include a pair of side walls and a front wall, houses the terminal, and guides the electric wire backward,
the pair of side walls are arranged along the terminal in a lead-out direction of the electric wire,
the front wall is disposed between front end portions of the pair of side walls,
the terminal receiving portion has a terminal receiving opening,
the terminal receiving opening is surrounded by the pair of side walls and the front wall, and the terminal can be inserted from a crossing direction crossing a lead-out direction of the electric wire,
at least one of the pair of side walls has a terminal detent,
the terminal locking portion is formed to protrude from the side wall so as to be capable of locking with the terminal housed in the terminal housing portion in the intersecting direction,
the side wall on which the terminal locking portion is formed is divided from the front wall.
2. The connector of claim 1,
a groove is formed at a boundary portion between the front wall and the side wall where the terminal locking portion is formed.
3. The connector of claim 2,
the slot is a demoulding hole formed in front of the terminal clamping part.
Technical Field
The present disclosure relates to connectors.
Background
For example, a connector described in japanese patent application laid-open No. 2017-228447 (patent document 1) is known as a shield connector including an inner housing that houses an inner terminal. The inner housing is formed with a plurality of terminal accommodating chambers having upper-layer-side terminal accommodating openings that open upward. The terminal housing chamber is provided with a terminal holding portion for holding the inner terminal in the terminal housing chamber. The terminal holding portion has a stepped wall portion protruding in a lateral direction from a lateral wall of the terminal accommodating chamber and connected to a front wall of the terminal accommodating chamber, and a curved recess portion formed recessed in a lower portion of the stepped wall portion.
When the inner terminal is inserted into the terminal receiving chamber from the upper terminal receiving opening, the inner terminal is prevented from falling off from the upper terminal receiving opening by the step wall portion and is held in the curved recess.
Patent document 1: japanese patent laid-open publication No. 2017-228447
However, according to the shield connector described above, the inner terminal is press-fitted from the upper-layer-side terminal receiving opening of the terminal receiving chamber, and the inner terminal is accommodated in the curved-surface-shaped recess of the terminal receiving chamber by expanding the stepped wall portion outward.
However, when the lateral wall of the terminal accommodating chamber is difficult to flex, the projecting dimension of the step wall portion from the lateral wall cannot be increased. Thus, the stepped wall portion becomes smaller in card amount with respect to the inner terminal, resulting in the inner terminal being easily detached from the inner terminal receiving chamber.
If the projecting dimension of the step wall portion is increased, the inner terminal may be forcibly pushed from the upper-layer-side terminal-receiving opening and deformed when the lateral wall is hard to bend.
Disclosure of Invention
In the present specification, a technique for preventing a terminal from being broken and preventing the terminal from being easily detached is disclosed.
The connector of the present disclosure is attached to an end portion of an electric wire, and includes at least one terminal connected to a terminal of the electric wire, and a resin housing configured to include a pair of side walls and a front wall, the pair of side walls being arranged along the terminal in a direction in which the electric wire is led out, the front wall being provided between front end portions of the pair of side walls, and the terminal housing having a terminal housing opening surrounded by the pair of side walls and the front wall, the terminal being insertable from a cross direction intersecting with the lead-out direction of the electric wire, at least one of the pair of side walls having a terminal locking portion capable of locking with the terminal housed in the terminal housing in the cross direction The side wall is formed to protrude from the side wall, and the side wall on which the terminal locking portion is formed is divided from the front wall.
Effects of the invention
According to the present disclosure, it is possible to prevent the terminal from being damaged and to prevent the terminal from easily falling off.
Drawings
Fig. 1 is an exploded perspective view of the connector.
Fig. 2 is a perspective view showing a state before the assembly of the housing main body and the inner cover.
Fig. 3 is a front view of the housing main body.
Fig. 4 is a sectional view showing a process of housing the terminal in the housing main body, and is a sectional view corresponding to a section taken along line IV-IV in fig. 3.
Fig. 5 is a plan view of a state where the terminal is inserted into the terminal housing portion.
Fig. 6 is a cross-sectional view VI-VI of fig. 5.
Fig. 7 is a front view of a conventional housing main body.
Fig. 8 is a sectional view of a conventional casing main body, and is a sectional view corresponding to the section of fig. 6.
Description of the reference symbols
1: inner shell
2: terminal with a terminal body
3: terminal receiving opening
4: terminal housing part
5: side wall
6: terminal clamping part
10: connector with a locking member
20: terminal with a terminal body
22: terminal connection part
24: connecting part
26: crimping part
30: inner casing (an example of a 'casing')
31: case body (an example of the case)
32: bottom wall
34: outer side wall (an example of a "side wall")
35: locking protrusion
36: front wall
36A: terminal insertion hole
37: trough
38: terminal housing part
39: partition wall
39D: lower bulkhead
39U: upper bulkhead
39W: horizontal partition wall
40: terminal receiving opening
42: terminal clamping part
42D: clamping and fixing surface
42F: front surface
42U: inclined plane
46: inner cover
47: roof wall
48: card fixing sheet
48A: locking hole
50: outer conductor
52: outer conductor body
54: shielding crimping part
60: outer casing
62: fitting part
64: first seal member
66: second seal member
68: rear holder
80: shielded electric wire (an example of "electric wire")
81: covered electric wire
84: knitted body
86: outer coating body
R1: card quantity
R2: card quantity
Detailed Description
[ description of embodiments of the present disclosure ]
First, embodiments of the present disclosure will be described.
(1) A connector to be attached to an end of an electric wire, wherein the connector includes at least one terminal connected to a terminal of the electric wire, and a resin housing having at least one terminal receiving portion formed to include a pair of side walls and a front wall, the pair of side walls being arranged along the terminal in a direction in which the electric wire is led out, the front wall being provided between front end portions of the pair of side walls, the terminal receiving portion having a terminal receiving opening formed so as to be surrounded by the pair of side walls and the front wall, the terminal being insertable from a direction intersecting with the direction in which the electric wire is led out, at least one of the pair of side walls having a terminal locking portion capable of locking with the terminal received in the terminal receiving portion in the intersecting direction The side wall on which the terminal locking portion is formed to protrude from the side wall, and the side wall and the front wall are divided.
Since the side wall on which the terminal locking portion is formed is divided from the front wall of the terminal receiving portion, the side wall on which the terminal locking portion is formed is more likely to flex in a direction opposite to the projecting direction of the terminal locking portion than in a case where the side wall and the front wall on which the terminal locking portion is formed are not divided, for example.
That is, since the side walls are easily bent, the amount of engagement between the terminal engagement portions and the terminals can be increased, and the terminals can be easily inserted into the terminal housing portions. This prevents the terminal from being damaged when the terminal is inserted, and prevents the terminal from falling out of the terminal housing portion.
(2) A groove may be formed in a boundary portion between the front wall and the side wall on which the terminal locking portion is formed.
For example, a method is conceivable in which a groove is formed in a side wall to divide a front wall and the side wall, thereby facilitating the bending of the side wall on which the terminal locking portion is formed. However, if the groove is formed in the side wall, the rigidity of the side wall subjected to flexural deformation is lowered, and the side wall may be broken during the flexural deformation.
However, according to this structure, since the groove is formed in the front wall, the side wall can be easily flexed without lowering the rigidity of the flexed side wall.
(3) The groove may be a die-off hole formed in front of the terminal locking portion.
The front wall and the side walls can be divided by forming the mold release hole for forming the terminal locking portion as a groove of the front wall. This can prevent the structure of the front wall from becoming complicated, as compared with a case where a groove is formed in the front wall separately from the demolding hole, for example.
Further, for example, as compared with the case where both the groove and the knockout hole are formed in the front wall, it is possible to prevent the rigidity of the front wall from being lowered.
[ details of embodiments of the present disclosure ]
Specific examples of the connector of the present disclosure will be described with reference to the following drawings. Further, the present disclosure is not limited to these examples, but is shown by the claims, and is intended to include all changes within the meaning and range equivalent to the claims.
< embodiment >
An embodiment of the present disclosure is explained with reference to fig. 1 to 6.
[ connector 10]
The connector 10 of the present embodiment is a connector attached to an end of a shielded wire (an example of a "wire") 80. As shown in fig. 1, the connector 10 includes a plurality of
[ shielded electric wire 80]
As shown in fig. 1, the shielded electric wire 80 includes a plurality of covered electric wires 81, a braid 84 covering the outer peripheries of the plurality of covered electric wires 81, and an outer cover 86 covering the outer periphery of the braid 84.
The shielded electric wire 80 of the present embodiment includes 4 covered electric wires 81.
At the tip end of the shielded electric wire 80, the braid 84 and the outer coating 86 are peeled off to expose 4 coated electric wires 81. Behind the exposed 4 coated wires 81, only the braided body 84, which is peeled off from the outer coating body 86 and exposed, is folded back toward the outer periphery of the outer coating body 86.
[ terminal 20]
The terminal 20 is formed by processing a metal plate material having conductivity. The terminal 20 is a female terminal, and as shown in fig. 4, includes a
The
[ inner case 30]
The inner case 30 is formed of an insulating synthetic resin. As shown in fig. 2, the inner case 30 includes a case main body (an example of a "case") 31 in a rectangular parallelepiped shape elongated in the front-rear direction, and an inner cover 46 assembled to the case
[ case body 31]
As shown in fig. 2 and 3, the housing
The
As shown in fig. 3, the
A
The
[ terminal housing portion 38]
The plurality of terminal receiving
The
As shown in fig. 3 and 6, the
The
The
The
As shown in fig. 3 and 6, the height dimension of the
The lower
That is, in the lower
The upper
The
[ terminal accommodation opening 40]
As shown in fig. 5, the
Therefore, in the upper
As shown in fig. 2 to 6,
[ terminal locking portion 42]
The
Therefore, in the process of inserting the terminal 20 into the upper-layer
When the
That is, when the terminal 20 is housed in the
As shown in fig. 4 and 5, the front surface 42F of the
[ inner cover 46]
As shown in fig. 2, the inner cover 46 has: a top wall 47 long in the front-rear direction; and a pair of locking pieces 48 provided on both lateral side edges of the top wall 47. The top wall 47 is formed to have a size to collectively cover the two
When the inner cover 46 is assembled to the
[ outer conductor 50]
The outer conductor 50 is formed by processing a metal plate material having conductivity. As shown in fig. 1, the outer conductor 50 includes a square cylindrical outer conductor main body 52 covering the outer periphery of the inner housing 30 and a cylindrical shield pressure-contact portion 54 connected to the rear of the outer conductor main body 52.
The outer conductor 50 is connected to the braided body 84 by crimping the shield crimping portion 54 to the braided body 84 folded back to the outer periphery of the outer sheath body 86.
[ outer case 60]
As shown in fig. 1, the outer case 60 is formed in a square tube shape from an insulating synthetic resin. The outer conductor 50 connected to the tip end of the shielded wire 80 can be housed in the outer case 60.
The front end of the outer housing 60 is formed as a fitting portion 62 to be fitted to a mating connector, not shown. A first sealing member 64 for sealing between the fitting portion 62 and the mating connector is attached to the outer periphery of the fitting portion 62. A second seal member 66 for sealing between the shield electric wire 80 and the outer housing 60 and a rear holder 68 for preventing the second seal member 66 from coming off are attached to the rear of the outer housing 60.
The present embodiment is configured as described above, and the operation and effect of the connector 10 will be described next.
For example, as shown in fig. 7 and 8, in the case of the conventional housing body 1 in which the
However, as shown in fig. 7, the
Therefore, for example, when the amount of protrusion of the terminal locking portion 6 is increased, the card amount of the terminal locking portion with respect to the
Therefore, the present inventors have conducted extensive studies to solve the above problems, and as a result, have found the structure of the present embodiment. That is, the present embodiment is a connector 10 attached to an end of a shielded wire (electric wire) 80, and includes at least one
The terminal 20 is connected to a terminal of a covered wire 81 of the shielded wire 80, the inner housing 30 has at least one
The pair of
At least one of the pair of
As shown in fig. 2, 3, 5, and 6, in the present embodiment, the
That is, since the
A
For example, a method is conceivable in which a groove is formed in a side wall to divide a front wall and the side wall, thereby facilitating the bending of the side wall on which the terminal locking portion is formed. However, if the groove is formed in the side wall, the rigidity of the side wall subjected to flexural deformation is lowered, and the side wall may be broken during the flexural deformation.
However, in the present embodiment, since the
The
The mold release hole for forming the
That is, since the mold release hole can also serve as the
< other embodiment >
(1) In the above embodiment, the inner housing 30 has a structure including the
(2) In the above embodiment, the release hole for forming the
(3) In the above embodiment, the inner housing 30 has 4
(4) In the above embodiment, the
(5) In the above embodiment, the connector 10 is shown as an example, which includes the outer conductor 50 and the outer housing 60 and is attached to the shield wire 80. However, the present invention is not limited to this, and the technique disclosed in the present specification may be applied to a connector that is attached to a covered electric wire without an outer conductor and an outer case.
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