CN112652914A - Connector shell and electric connector - Google Patents
Connector shell and electric connector Download PDFInfo
- Publication number
- CN112652914A CN112652914A CN202011070411.XA CN202011070411A CN112652914A CN 112652914 A CN112652914 A CN 112652914A CN 202011070411 A CN202011070411 A CN 202011070411A CN 112652914 A CN112652914 A CN 112652914A
- Authority
- CN
- China
- Prior art keywords
- wire
- electric wire
- groove
- pressing piece
- rear end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004308 accommodation Effects 0.000 claims abstract description 21
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000002788 crimping Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention provides a connector housing having a structure in which a covered wire is not easily removed from a housing groove when a force in a direction in which the covered wire is removed upward is applied to the covered wire. The wire holding portion (21) has a receiving groove (22) for receiving the coated wire. Upright walls (23) are formed on both sides of the accommodation groove (22). In addition, wire pressing pieces (24) are formed on both sides of the accommodating groove (22). The wire pressing pieces (24) have a shape that hangs down from the vertical walls (23) into the accommodating grooves (22) in the direction in which the vertical walls approach each other. The electric wire pressing pieces (24) allow the covered electric wire (50) to be accommodated in the accommodating groove (22). In addition, when an upward force is applied to the housed covered wire (50), the wire pressing pieces (24) are prevented from being separated upward from the housing groove (22). The standing wall (23) extends rearward from the rear end (position E2) of the wire pressing piece (24) to a position E1.
Description
Technical Field
The present invention relates to a connector housing including a wire holding portion that holds a covered wire, and an electrical connector including the connector housing.
Background
Conventionally, a connector housing and an electrical connector having a wire holding portion are known. For example, patent document 1 discloses an electrical connector including a connector housing including a wire holding portion and a contact having a pressure contact blade for cutting a coating of a coated wire to be conductive with a core wire. The electric wire holding portion of the electric connector disclosed in patent document 1 includes upright walls provided upright on both sides of the accommodation groove with the accommodation groove interposed therebetween, and an electric wire pressing piece hanging down from the upright walls into the accommodation groove in a direction approaching each other. The electric wire pressing piece is elastically deformed when the covered electric wire is accommodated in the accommodating groove, so that the covered electric wire is allowed to be accommodated in the accommodating groove. The wire pressing piece prevents the housed covered wire from being separated upward from the housing groove.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open No. 2005-108650.
Disclosure of Invention
Problems to be solved by the invention
In the connector housing and the electrical connector having the wire holding portion as described above, it is required to narrow the arrangement pitch of the covered wires without changing the thickness of the covered wires. In this case, in order to narrow the arrangement pitch, the thickness of the standing wall needs to be reduced. If the thickness of the standing wall is reduced, the standing wall is easily deflected outward when a force in the direction of pulling out upward is applied to the covered electric wire in the accommodation groove. Therefore, the covered electric wire may be pulled out from the housing groove with a smaller force than in the case where the thickness of the standing wall is large.
The invention aims to provide a connector housing with a structure that a covered wire is not easy to be separated from a containing groove when a force in a direction of separating the covered wire upwards is applied to the covered wire, and an electric connector with the connector housing.
Means for solving the problems
The connector housing according to the present invention for achieving the above object is formed with a wire holding portion including: a vertical wall extending in the front-rear direction and forming a housing groove for housing the covered electric wire by being vertically provided with an upward opening therebetween; and an electric wire pressing piece extending in the front-rear direction and hanging down into the accommodation groove from the upper portion of the vertical wall in a mutually approaching direction, the electric wire pressing piece being elastically deformed when the coated electric wire is accommodated in the accommodation groove to allow the accommodation of the coated electric wire into the accommodation groove and to suppress the housed coated electric wire from being separated upward from the accommodation groove, wherein the rear end of the vertical wall extends rearward relative to the rear end of the electric wire pressing piece.
In the connector housing of the present invention, the rear end portion of the standing wall forming the accommodation groove extends rearward than the rear end of the wire pressing piece. Therefore, when a force in the upward pulling-out direction is applied to the covered electric wire, the covered electric wire can be more strongly suppressed from being pulled out of the housing groove than in the case where the rear end of the electric wire pressing piece is located at the same position as the rear end of the standing wall.
In the connector housing according to the present invention, it is preferable that the upright wall has a slope obliquely upward and rearward between a rear end of the wire pressing piece and a rear end of the upright wall
If the slope is formed, the risk of damaging the covered electric wire when the covered electric wire is mounted to the connector housing is reduced. This reduces the risk of occurrence of accidents such as cutting of the coated electric wire and peeling of the coating.
In addition, an electrical connector according to the present invention for achieving the above object includes: a connector housing according to any one of the embodiments of the present invention; and a contact having a pressure contact blade for cutting the coating of the coated wire and conducting with the core wire, and supported by the connector housing in a posture of: the crimping blade is positioned forward of the wire holding portion, and cuts the coating of the coated wire when the coated wire is held by the wire holding portion.
The present invention is applicable to an electrical connector having a crimp contact.
Effects of the invention
According to the present invention described above, when a force in the direction of pulling out the covered electric wire upward is applied to the covered electric wire, the covered electric wire is prevented from being pulled out from the housing groove with ease.
Drawings
Fig. 1 is a perspective view of an electrical connector according to an embodiment of the present invention.
Fig. 2 is a three-sided view of the electrical connector of fig. 1.
Fig. 3 is an enlarged view (a) of a portion of circle R1 of fig. 1, and an enlarged view (B) of a portion of circle R2 of fig. 2.
Fig. 4 is a perspective view of an electrical connector as a comparative example.
Fig. 5 is a three-sided view of the electrical connector of fig. 4.
Fig. 6 is an enlarged view (a) of a portion of the circle R3 of fig. 4, and an enlarged view (B) of a portion of the circle R4 of fig. 5.
Fig. 7 is an explanatory diagram illustrating differences in action due to differences in the formation positions of the wire pressing pieces.
Detailed Description
Hereinafter, embodiments of the present invention will be described.
Fig. 1 is a perspective view of an electrical connector according to an embodiment of the present invention.
In addition, fig. 2 is a three-sided view of the electrical connector of fig. 1. Here, fig. 2(a) is a plan view, fig. 2(B) is a side view, and fig. 2(C) is a rear view.
Fig. 3 is an enlarged view (a) of a portion of circle R1 in fig. 1 and an enlarged view (B) of a portion of circle R2 in fig. 2.
The electrical connector 10A is provided with a connector housing 20 and contacts. As for the contact, the crimping blade 31 is shown, but the other part is hidden in the housing 20 and not shown in the drawing. In the electrical connector 10, 13 contacts are arranged. In each contact, the pressure contact blades 31 are provided at two positions, front and rear. In the electrical connector 10, 13 covered electric wires 50 (see fig. 7) are attached. The crimp blade 31 cuts the coating of the attached coated electric wire 50 to conduct with the core wire.
Further, the connector housing 20 is formed with a wire holding portion 21 for holding the covered wire 50 at a position rearward of the pressure contact blade 31 of the contact. The wire holding portions 21 are also arranged in the same number as the number of contacts. Each wire holding portion 21 has an accommodating groove 22 that opens upward and accommodates the covered wire. The housing groove 22 is formed by upright walls 23 that are erected on both sides of the housing groove 22 across the housing groove 22 and extend in the front-rear direction. In the wire holding portion 21, wire pressing pieces 24 are formed on both sides of the housing groove 22. These electric wire pressing pieces 24 have a shape extending in the front-rear direction and hanging down from the standing walls 23 into the accommodation grooves 22 in the direction approaching each other. The electric wire pressing pieces 24 are elastically deformed when the covered electric wire 50 is accommodated in the accommodation groove 22, and allow the covered electric wire 50 to be accommodated in the accommodation groove 22. Further, when an upward force is applied to the housed covered electric wire 50, the electric wire pressing pieces 24 prevent the electric wire from being separated upward from the housing groove 22.
Here, in the present embodiment, as shown in fig. 3(B), the rear end of the standing wall 23 is at the same position E1 as the rear end of the connector housing 20. On the other hand, the rear end of the wire pressing piece 24 is at a position E2 shifted forward by a distance d from the position E1. That is, the standing wall 23 extends rearward from the rear end of the wire holding piece 24. The wire pressing piece 24 has a length L in the front-rear direction.
The upright wall 23 has a slope 231 inclined upward rearward between the rear end of the wire holding piece 24 (position E2) and the rear end of the upright wall 23 (position E1).
The operation of the standing wall 23 extending rearward from the rear end of the wire holding piece 24 and the operation of the inclined surface 231 will be described with reference to a comparative example.
Fig. 4 is a perspective view of an electrical connector as a comparative example.
In addition, fig. 5 is a three-sided view of the electrical connector of fig. 4. Here, fig. 5(a) is a plan view, fig. 5(B) is a side view, and fig. 5(C) is a rear view.
Fig. 6 is an enlarged view (a) of a portion of circle R3 in fig. 4 and an enlarged view (B) of a portion of circle R4 in fig. 5.
In the electrical connector 10B of the comparative example shown in fig. 4 to 6, elements corresponding to the elements of the electrical connector 10A of the embodiment of the present invention shown in fig. 1 to 3 are denoted by the same reference numerals as those denoted in fig. 1 to 3. In this comparative example, only points necessary for comparison with the electrical connector 10A according to the embodiment of the present invention will be described, and other descriptions will be omitted.
In the electrical connector 10B of this comparative example, the rear end of the wire pressing piece 24 is at the same position E1 as the rear end of the standing wall 23. The length L of the wire pressing piece 24 is the same as the length L of the wire pressing piece 24 of the electrical connector 10A according to the embodiment. That is, in the case of the electrical connector 10B of the comparative example, other elements are the same as those of the electrical connector 10A of the embodiment, and only the wire pressing piece 24 is formed at the position moved close to the position E1.
Fig. 7 is an explanatory diagram illustrating differences in action due to differences in the formation positions of the wire pressing pieces. Fig. 7(a) is an explanatory view of the present embodiment, and fig. 7(B) is an explanatory view of a comparative example.
Fig. 7 shows a state where the covered electric wire 50 is accommodated in the accommodation groove 22 of the electric wire holding portion 21. Here, an upward force that escapes from the housing groove 22 is applied to the covered electric wire 50. The upward force applied to the covered electric wire 50 means that the portion of the covered electric wire 50 extending rearward (downward in fig. 7) from the connector housing 20 is lifted upward as shown in fig. 2C and 5C. In this case, in the wire pressing piece 24, a force is applied to the rear end thereof in the direction of the illustrated broken-line arrow D. Then, a force in the direction of arrow D is also applied to the upright wall 23, and the upright wall 23 attempts to open left and right.
Here, in the case of the present embodiment (fig. 7 a), the rear end of the standing wall 23 (position E1) is located rearward of the rear end of the wire pressing piece 24 (position E2). Therefore, when a force is applied to the rear end of the voltage pressing piece 24 (position E2), the upright wall 23 functions as a both-end support beam in which both the rear end at position E1 and the front end at position E3 are fixed. In contrast, in the case of the comparative example (fig. 7B), the rear end of the wire holding piece 24 is at the same position E1 as the rear end (position E1) of the standing wall 23. Therefore, if a force is applied to the rear end of the voltage pressing piece 24 (position E1), the standing wall 23 moves close to a cantilever beam in which only the front end of the position E3 is fixed. Due to this difference, the displacement amount of the standing wall 23 when the same force is applied is different as shown by the difference in the size of the arrow D between fig. 7(a) and 7 (B). That is, in the case of the present embodiment, by forming the wire pressing piece 24 forward by the distance d as compared with the comparative example, the displacement amount of the standing wall 23 may be small, and accordingly, the coated wire 50 can be prevented from coming off from the housing groove 22.
Here, as a means for strongly suppressing the coated electric wire 50 from coming off from the housing groove 22, it is conceivable to increase the length L of the electric wire pressing piece 24 in the front-rear direction. If the length L is increased, the wire pressing piece 24 can be strongly prevented from coming off even if the rear end is located at the same position as the rear end of the standing wall 23. However, if the length L of the wire pressing piece 24 in the front-rear direction is increased, a larger force is required to accommodate the covered wire 50 in the accommodation groove 22, and the risk of damaging the covered wire 50 increases. Therefore, in the present embodiment, the length L of the wire pressing piece 24 in the front-rear direction is made the same as that of the comparative example, and the forming position of the wire pressing piece 24 is moved forward.
In the present embodiment, the inclined surface 231 is formed on the standing wall 23. It is compared with the standing wall 23 in which the slope 231 is not formed but the rear end of the standing wall 23 is vertically peaked. If the inclined surface 231 is formed, the risk of damaging the covered electric wire 50 when the covered electric wire 50 is mounted to the connector housing 20 is reduced. Therefore, the risk of occurrence of accidents such as cutting of the covered electric wire 50 and peeling of the covering is reduced. Further, if the inclined surface 231 is formed, the thin portion of the standing wall 23 is reduced, and breakage of the standing wall 23 when an external force is applied can be prevented.
Here, an example in which the present invention is applied to an electrical connector 10A having a contact with a pressure contact blade 31 is described. However, the contact constituting the electrical connector of the present invention does not necessarily have to be a contact having a pressure contact blade, and may be a contact pressed against a wire, for example.
Description of the symbols
10A, 10B electrical connector
20 connector shell
21 electric wire holding part
22 accommodating groove
23 standing wall
231 inclined plane
24 electric wire pressing sheet
31 crimping blade
50 coat the wire.
Claims (3)
1. A connector housing formed with a wire holding portion having: a vertical wall extending in the front-rear direction and forming a housing groove for housing the covered electric wire by being vertically provided with an upward opening therebetween; and an electric wire pressing piece extending in the front-rear direction and hanging down into the accommodation groove from the upper portion of the upright wall in a direction approaching each other, the electric wire pressing piece being elastically deformed when the coated electric wire is accommodated in the accommodation groove to allow accommodation of the coated electric wire into the accommodation groove and to suppress upward separation of the accommodated coated electric wire from the accommodation groove,
the vertical wall extends to the rear side in comparison with the rear end of the wire pressing piece.
2. The connector housing according to claim 1, wherein the standing wall has a slope obliquely upward toward the rear between a rear end of the wire pressing piece and a rear end of the standing wall.
3. An electrical connector is characterized by comprising:
the connector housing of claim 1 or 2; and
a contact having a pressure contact blade for cutting the coating of the coated wire and conducting with the core wire, the contact being supported by the connector housing in a posture of: the crimping blade is positioned forward of the wire holding portion, and cuts the coating of the coated wire when the coated wire is held by the wire holding portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019-187748 | 2019-10-11 | ||
| JP2019187748A JP2021064494A (en) | 2019-10-11 | 2019-10-11 | Connector housing and electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112652914A true CN112652914A (en) | 2021-04-13 |
Family
ID=75346558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011070411.XA Pending CN112652914A (en) | 2019-10-11 | 2020-10-09 | Connector shell and electric connector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2021064494A (en) |
| CN (1) | CN112652914A (en) |
| SG (1) | SG10202009945SA (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380220A (en) * | 1992-11-25 | 1995-01-10 | Yazaki Corporation | Connector |
| CN1199941A (en) * | 1997-03-03 | 1998-11-25 | 住友电装株式会社 | Pressure contact connector |
| US20050070151A1 (en) * | 2003-09-30 | 2005-03-31 | Masayuki Horamoto | Electric connector |
| CN201773990U (en) * | 2010-04-12 | 2011-03-23 | 富士康(昆山)电脑接插件有限公司 | Electric connector component |
| CN102709726A (en) * | 2012-05-30 | 2012-10-03 | 中航光电科技股份有限公司 | Electric connector capable of pressing cable and assembly of electric connector |
| CN104112915A (en) * | 2013-04-16 | 2014-10-22 | 日本压着端子制造株式会社 | Crimp connector and housing using by crimp connector |
| US20190165509A1 (en) * | 2017-11-30 | 2019-05-30 | Hirose Electric Co., Ltd. | Electrical connector |
-
2019
- 2019-10-11 JP JP2019187748A patent/JP2021064494A/en active Pending
-
2020
- 2020-10-07 SG SG10202009945SA patent/SG10202009945SA/en unknown
- 2020-10-09 CN CN202011070411.XA patent/CN112652914A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5380220A (en) * | 1992-11-25 | 1995-01-10 | Yazaki Corporation | Connector |
| CN1199941A (en) * | 1997-03-03 | 1998-11-25 | 住友电装株式会社 | Pressure contact connector |
| US20050070151A1 (en) * | 2003-09-30 | 2005-03-31 | Masayuki Horamoto | Electric connector |
| CN1604394A (en) * | 2003-09-30 | 2005-04-06 | 日本压着端子制造株式会社 | Electric connector |
| CN201773990U (en) * | 2010-04-12 | 2011-03-23 | 富士康(昆山)电脑接插件有限公司 | Electric connector component |
| CN102709726A (en) * | 2012-05-30 | 2012-10-03 | 中航光电科技股份有限公司 | Electric connector capable of pressing cable and assembly of electric connector |
| CN104112915A (en) * | 2013-04-16 | 2014-10-22 | 日本压着端子制造株式会社 | Crimp connector and housing using by crimp connector |
| JP2014209410A (en) * | 2013-04-16 | 2014-11-06 | 日本圧着端子製造株式会社 | Pressure contact connector and housing used for the same |
| US20190165509A1 (en) * | 2017-11-30 | 2019-05-30 | Hirose Electric Co., Ltd. | Electrical connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021064494A (en) | 2021-04-22 |
| SG10202009945SA (en) | 2021-05-28 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |