Connector shell
阅读说明:本技术 连接器外壳 (Connector shell ) 是由 木村毅 杉田幸绩 藤井大五郎 于 2020-04-29 设计创作,主要内容包括:本发明涉及连接器外壳。具体地,提供一种高度可靠的连接器,其提供有具有高刚度的外壳主体和适合于弹性变形的闩锁臂。连接器外壳(20)具有外壳主体(21)和闩锁臂(22)。闩锁臂(22)像悬臂一样延伸,具有前端(22a)作为固定端。而且,闩锁臂(22)相对于外壳主体(21)弹性地变形以闩锁诸如匹配连接器外壳的被闩锁部件。外壳主体(21)由具有高刚度的材料形成。另一方面,闩锁臂(22)由可易于弹性变形并且柔软的材料形成。在外壳主体(21)与闩锁臂(22)之间的边界部分处或其附近存在过渡区域,在该过渡区域中外壳主体(21)的材料与闩锁臂(22)的材料混合在一起并且它们的混合比是连续可变的。(The present invention relates to a connector housing. Specifically, a highly reliable connector is provided with a housing main body having high rigidity and a latch arm adapted to be elastically deformed. The connector housing (20) has a housing main body (21) and a latch arm (22). The latch arm (22) extends like a cantilever, having a front end (22 a) as a fixed end. Also, the latch arm (22) is elastically deformed with respect to the housing main body (21) to latch a latched component such as a mating connector housing. The housing main body (21) is formed of a material having high rigidity. On the other hand, the latch arm (22) is formed of a material that is easily elastically deformable and flexible. At or near the boundary portion between the housing main body (21) and the latch arm (22), there is a transition region in which the material of the housing main body (21) and the material of the latch arm (22) are mixed together and their mixing ratio is continuously variable.)
1. A connector housing, comprising:
a housing body formed of a first material; and
a latch arm formed of a second material having lower rigidity than the first material, the latch arm extending in a cantilever manner, pinching a boundary portion between the latch arm and the housing main body, and configured to be elastically deformed with respect to the housing main body to latch a latched component,
Wherein a transition region having a continuously variable mixing ratio between the first material and the second material is present within an extended border region that includes the border portion and that extends into the housing body and into the latch arms.
2. The connector housing according to claim 1, wherein the first material is a material mixed with glass, and the second material is a material not mixed with glass or a material having a lower glass mixture ratio than the first material.
3. Connector shell according to claim 1 or 2, wherein the latching arm is a latching arm for latching a mating shell mating with the connector shell.
4. The connector housing according to any one of claims 1 to 3, wherein the first material and the second material are materials different in color from each other.
Technical Field
The present disclosure relates to a connector housing provided with a latch arm.
Background
Conventionally, a connector housing provided with a latch arm for latching a latched member such as a mating housing to hold the latched member is widely used (for example, see patent document 1). Such a latch arm extends like a cantilever from the housing main body and has a structure for locking onto a latched member at a middle portion of the cantilever.
Further, patent document 2 discloses a connector housing provided with a housing main body made of a hard material and a hinge made of a soft material different from the hard material by means of a multi-material injection molding (or injection molding) technique.
Further, patent document 3 discloses a molding apparatus in which different resin materials are injected from a plurality of gates (inlets) of a mold.
CITATION LIST
Patent document
Patent document 1: JPH04-137474A
Patent document 2: JPH02-186569A
Patent document 3: JP 2017-177738A.
Disclosure of Invention
Technical problem
The housing main body is required to have high rigidity so as not to be easily deformed. On the other hand, the latch arm is required to temporarily elastically deform in order to latch the latched component, e.g., the mating housing. If such a latch arm is formed of the same material as the housing main body, the operating force for the latch arm becomes too large.
As means for forming the housing main body and the latch arm from different materials suitable for the housing main body and the latch arm, respectively, it is possible to apply the multi-material injection molding technique disclosed in patent document 2 to the latch arm. However, multi-material injection molding is costly because the molding process is performed twice. Further, the multi-material injection molding is likely to cause the housing main body and the lock arm to be separated at their joint, which may result in insufficient reliability.
Further, there is no disclosure about the connector housing in the above-cited patent document 3.
In light of these circumstances, it is an object of the present disclosure to provide a highly reliable connector housing provided with a housing main body having high rigidity and latch arms adapted to be elastically deformed.
Problem solving scheme
The connector housing of the present disclosure achieving the above object may be characterized by having:
a housing body formed of a first material; and
a latch arm formed of a second material having lower rigidity than the first material, the latch arm extending like a cantilever arm having a boundary portion between the latch arm and the housing main body, and the latch arm being configured to be elastically deformed with respect to the housing main body to latch the latched component,
wherein a transition region having a continuously variable mixing ratio (or ratio) between the first material and the second material is present within an extended border region that includes the transition region and that extends into the housing body and into the latch arms.
The housing body may be formed of a first material satisfying rigidity of the housing body and, further, the latch arm may be formed of a second material suitable for elastic deformation thereof. These can be achieved by multi-material injection moulding.
The present disclosure also includes a transition region having a continuously variable mixing ratio between the first material and the second material. According to aspects of the present disclosure, since such a transition region exists, the housing main body and the latch arm are integrally formed, and separation thereof is prevented with high reliability.
Here, in the connector housing of the present disclosure, it is preferable that the first material is a material mixed with glass, and the second material is a material not mixed with glass or a material having a lower glass mixture ratio than the first material.
By mixing the glass, the rigidity becomes higher as the mixing ratio increases, and the material becomes more suitable for elastic deformation as the mixing ratio decreases.
The latch arm referred to in this disclosure is typically a latch arm that latches a mating housing that mates with the connector housing of this disclosure.
However, the latch arm referred to in this disclosure is not limited to latching the latch arm of the mating housing. For example, the latch arm referred to in the present disclosure may be a latch arm that latches a contact (contact lance) inserted into a connector housing.
Further, in the connector housing of the present disclosure, it is preferable that the first material and the second material are materials different in color from each other.
When they differ in color, it is easy to confirm that they are molded correctly.
Advantageous effects of the invention
According to the present disclosure described above, it is possible to provide a connector housing having high reliability and provided with a housing main body having high rigidity and a latch arm adapted to be elastically deformed.
Drawings
FIG. 1 is an isometric view of a connector;
FIG. 2 is a cross-sectional view taken along arrows X-X shown in FIG. 1; and
fig. 3 is a schematic view showing an outline of a manufacturing process of a connector housing constituting the connector shown in fig. 1 and 2.
Detailed Description
Embodiments of the present disclosure will be described below.
Fig. 1 is an isometric view of a connector.
Further, fig. 2 is a sectional view taken along an arrow X-X shown in fig. 1.
Such a
The
The
The
A mating connector (not shown) is mated with such a
Here, a material whose rigidity is improved by mixing a resin material with glass is used for the housing
Fig. 3 is a schematic view showing an outline of a manufacturing process of a connector housing constituting the connector shown in fig. 1 and 2.
Shown here is a
In addition, two cylinders (cylinders) 51, 52 are provided here. One
Further, the timing of the opening
Such a transition region T does not necessarily coincide with the boundary portion R between the housing
In this way, the
The housing
Here, it should be noted that the use of a material whose rigidity is adjusted by mixing glass or not or by mixing glass in different ratios is described by way of example. However, this is an example, and different mixing substances may be mixed in. Alternatively, the resin materials themselves may be different resin materials from each other.
Further, here, a latch arm that latches a housing of a mating connector is described. However, the latch arm referred to in this disclosure is not limited to latching the latch arm of the housing of the mating connector. For example, the latch arm referred to in the present disclosure may be a latch arm that latches a contact inserted into a connector housing to hold the contact (contact lance 23 (see fig. 2)).
List of reference numerals
10
Connector housing
A housing body
Material for housing body
Latch arm
Front end of a latching arm
Rear end of the latching arm
22c
Material for a latching arm
Contact element
Cable
51,52
61,62
70. cavity of a mold
71.. housing body part of cavity
A latching arm portion of the cavity
72a … inlet.
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