WO2013162590A1 - Compact latching mechanism for a mid-power electrical connector - Google Patents
Compact latching mechanism for a mid-power electrical connector Download PDFInfo
- Publication number
- WO2013162590A1 WO2013162590A1 PCT/US2012/035347 US2012035347W WO2013162590A1 WO 2013162590 A1 WO2013162590 A1 WO 2013162590A1 US 2012035347 W US2012035347 W US 2012035347W WO 2013162590 A1 WO2013162590 A1 WO 2013162590A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- latching
- receptacle
- housing
- plug
- tabs
- Prior art date
Links
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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6271—Latching means integral with the housing
- H01R13/6272—Latching means integral with the housing comprising a single latching arm
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
- H01R13/6275—Latching arms not integral with the housing
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
- H01R13/6397—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap with means for preventing unauthorised use
Definitions
- the invention relates to electrical connectors, and more particularly, to latching systems for mid-power electrical connectors.
- Single-contact and multiple-contact electrical connector systems are widely used for many household and industrial applications.
- such connector systems include a plug and a compatible receptacle, each of which includes one or more electrical contacts which are interconnected when the plug is mated with the receptacle.
- Plug and receptacle housings or “shells” are provided which position the contacts in alignment with each other, maintain the contacts in secure connection with each other, and protect the electrical contacts from the environment when the connectors are mated.
- the housings at least partly overlap when the connectors are mated, with the outer housing being referred to as the "receptacle” and the inner housing being referred to as the "plug.”
- a latching mechanism is included with the housings so as to avoid inadvertent separation of the plug from the receptacle.
- Mid-power connector systems typically must be able to support and protect one or more high current connections and/or a plurality of densely packed connections under conditions that may be environmentally and/or physically challenging.
- connectors used in solar or wind-power installations are often required to support high currents and to withstand exposure to sun, wind, and rain.
- Mid-power connectors used in a marine environment such as on a drilling platform or on a yacht may be exposed to prolonged salt spray.
- Connectors used in industrial environments such as in food processing plants, may be exposed to periodic impact by pressurized water during cleaning operations.
- mid-power connectors it is desirable for mid-power connectors to be as compact as possible. For example, in solar power installations and in yachts it is often necessary for a plurality of mid-power connectors to be co-located in a limited space, either as separate pairs of connectors or as a plurality of closely- spaced connectors attached to a panel. In addition, it is often desirable for mid- power connectors to be easily and quickly connected and disconnected. And in some applications, mid-power connectors are required by applicable codes to be releasable only through use of a tool.
- FIG 1A is a perspective view of a prior art mid-power connector plug 100 which accepts a plurality of male or female pins 102 (a male pin 102 is illustrated) that can be installed in a male connector body 104."
- the plug 100 includes a housing 106 in which are formed three spiral grooves 108.
- the matching receptacle 1 10 is illustrated in Figure IB.
- a female pin 1 12 is illustrated in Figure IB.
- the receptacle housing 1 16 is surrounded by a large collar 1 18 which can rotate freely about the housing 1 16.
- the collar 1 18 has three latching pins 120 inserted at equally spaced locations about its circumference, which extend inward and mate with the three spiral slots 108 of the plug housing, so that rotation of the collar 1 18 pulls the plug and receptacle housings together and locks them into place.
- the plug housing 106 includes "wear pins" 122 that retain the collar 1 18 in its locked position and inhibit it from inadvertently rotating and releasing if the plug and receptacle are pulled in opposite directions.
- the present invention is a latching mechanism for a mid-power electrical connector that is comfortable, easy, and safe to engage and release, even under cramped conditions, highly compact, durable, and inexpensive to
- the latching mechanism includes a plug housing and a receptacle housing, each of which is molded from plastic as a single piece, thereby
- At least one metal latching tab is inserted and retained on a side of the plug housing.
- a pair of metal latching tabs are inserted and retained on opposing sides of the plug housing.
- the latching tabs flex inwardly on living hinges as they enter latching channels in the receptacle housing.
- the latching tabs spring outward to engage with corresponding latching features provided on opposing sides of the receptacle housing.
- the latching tabs are metal inserts that are mainly flat and relatively simple in shape, thereby providing the durability and holding strength of metal at a minimal cost of manufacture.
- the latching features are openings in the receptacle housing into which protrusions formed in the latching tabs are inserted when the two housings are joined.
- the latching features are inward protrusions formed from the plastic of the receptacle housing that are inserted into openings in the latching tabs when the two housings are joined.
- the latching tabs are at least partly covered by plastic pressing tabs that are formed as part of one of the housings and can be pressed inward on living hinges so as to press upon and release the latching tabs.
- the pressing tabs thereby provide pressing targets which can be easily located by touch even if they are not directly visible, and which are comfortable to press on, since they are molded from plastic and lack any sharp edges that might be associated with the metal latching tabs.
- the latching tabs are covered by fixed portions of the plug housing, and are not accessible to the fingers of a user, so that a tool must be inserted through release openings provided in the plug or receptacle housing so as to press upon and release the underlying latching tabs.
- the present invention is an electrical connector housing and latching system that includes a receptacle housing molded as a unitary plastic article, at least one latching channel formed on a side of the receptacle housing, each of the latching channels including a receptacle latching feature, a plug housing molded as a unitary plastic article, the plug housing being configured for mating with the receptacle housing by inserting at least a portion of the plug housing into the receptacle housing, and at least one metal latching tab inserted into a retaining channel formed on a side of the plug housing, the latching tab extending beyond the retaining channel so that a distal end of the latching tab can flex inward when pressed upon, the latching tab including a plug latching feature proximal to the distal end of the latching tab.
- the latching tabs, the retaining channels, and the latching channels are configured to cause the latching tabs to enter the latching channels and the plug latching features to engage with the receptacle latching features when the plug housing is fully mated with the receptacle housing, the plug latching features being disengagable from the receptacle latching features by pressing the distal ends of the latching tabs inward.
- a tool is required to disengage the plug latching features from the receptacle latching features.
- a pair of latching tabs are inserted into a pair of retaining channels formed on opposing sides of the plug housing, and a pair latching channels are formed on opposing sides of the receptacle housing.
- the receptacle latching features are inwardly extending protrusions formed from plastic of the receptacle housing, and the plug latching features are openings proximal to the distal ends of the latching tabs into which the receptacle latching protrusions extend when the plug housing is fully mated with the receptacle housing.
- the plug latching features are outwardly extending latching hooks proximal to the distal ends of the latching tabs, and the receptacle latching features are openings in the latching channels into which the latching hooks extend when the plug housing is fully mated with the receptacle housing.
- the plug housing includes pressing tabs attached to the plug housing by living hinges and at least partly covering the latching tabs, the pressing tabs being configured to flex the distal ends of the latching tabs inward and to disengage the plug latching features from the receptacle latching features when the plug housing is fully mated with the receptacle housing and the pressing tabs are pressed inward by fingers of a user.
- the receptacle housing includes pressing tabs attached to the receptacle housing by living hinges and at least partly covering the latching tabs, the pressing tabs being configured to flex the distal ends of the latching tabs inward and to disengage the plug latching features from the receptacle latching features when the plug housing is fully mated with the receptacle housing and the pressing tabs are pressed inward by fingers of a user.
- the receptacle housing and/or the plug housing includes latching tab covers that partly cover the latching tabs and prevent disengagement by a user's fingers of the plug latching features from the receptacle latching features, and the receptacle housing and/or the plug housing includes release openings into which a tool can be inserted to press on the latching tabs and release the plug latching features from the receptacle latching features.
- Some of these embodiments further include a tool for releasing the plug latching features from the receptacle latching features.
- At least one of the plug housing and the receptacle housing is configured for direct attachment to an electrical cable. In various embodiments at least one of the plug housing and the receptacle housing is configured for mounting to a panel.
- At least one of the plug housing and the receptacle housing includes an O-ring seat configured to accept an O-ring that inhibits entry of water into an interior of the system when the plug housing is fully mated with the receptacle housing.
- Figure 1A is a perspective view of a mid-power plug housing of the prior art
- Figure IB is a perspective view of a mid-power receptacle housing of the prior art that is compatible with the plug housing of Figure 1 ;
- Figure 2A is an exploded perspective view of a mid-power plug housing in an embodiment of the present invention.
- Figure 2B is an assembled perspective view of the plug housing of Figure 2A;
- Figure 3 is a perspective view of a mid-power receptacle housing in an embodiment of the present invention.
- Figure 4 is a perspective view of a receptacle housing and a plug housing aligned in preparation for connection in an embodiment of the present invention
- Figure 5 is a perspective view of the receptacle and plug housings of Figure 4 after connection;
- Figure 6A is a partially sectional top view of the plug housing of Figure 2B;
- Figure 6B is a close-up view of the sectional portion of Figure [0033]
- Figure 7A is a top view of a latching tab in an embodiment of the present invention in which the latching tab includes an opening that engages with the latching feature of the receptacle housing;
- Figure 7B is a side view of the latching tab of Figure 7A;
- Figure 7C is a perspective view of the latching tab of Figure 7A;
- Figure 8A is a top view of a latching tab in an embodiment of the present invention in which the latching tab includes a latching hook that engages with the latching feature of the receptacle housing;
- Figure 8B is a side view of the latching tab of Figure 8A;
- Figure 8C is a perspective view of the latching tab of Figure 8A;
- Figure 9 is a partially sectional top view of the mated plug and receptacle housings of Figure 5;
- Figure 10 is a partially sectional top view of mated plug and receptacle housing of an embodiment in which the latching tabs include latching hooks and the latching features are openings in the latching channels of the receptacle housing;
- Figure 1 1 is a perspective view of a plug housing of an embodiment in which the latching tabs are covered and cannot be accessed by fingers, thereby requiring a tool for disengagement;
- Figure 12 is a perspective view of the plug housing of Figure 1 1 mated with a compatible receptacle housing
- Figure 13 is a partially sectional top view of the mated housings of Figure 12. DETAILED DESCRIPTION
- the present invention is a latching mechanism for a mid-power electrical connector system that is comfortable, easy, and safe to engage and release, even under cramped conditions, highly compact, durable, and inexpensive to manufacture.
- the latching mechanism includes a plug housing 200 which is molded from plastic as a single piece, thereby minimizing its cost.
- One or more latching tabs 202 are inserted and retained in retaining channels 204 on one or more sides of the plug housing 200.
- the latching tabs 202 include tails 206 that prevent them from being inserted too far into the retaining channels 204, and retaining hooks 208 that prevent them from being removed once they are inserted in the retaining channels 204.
- the latching tabs 202 include openings 210 that engage with engagement features of the receptacle 300 when the connectors are mated.
- the embodiment of Figures 2A and 2B also includes plastic pressing tabs 212 that are formed in the illustrated embodiment as part of the plug housing 200 and can be pressed inward on living hinges so as to press upon and release the latching tabs 202.
- the pressing tabs 212 include pressing targets 214 that can be easily located by touch even if they are not directly visible, and which are comfortable to press on with fingers, since they are molded from plastic and lack any sharp edges that might be associated with the metal latching tabs 202.
- Figure 2A is an exploded perspective view of the plug assembly 200 of the illustrated embodiment
- Figure 2B is an assembled perspective view of the embodiment of Figure 2A.
- the receptacle housing 300 is also molded from plastic as a single piece.
- the receptacle housing 300 includes latching channels 302 into which the latching tabs 202 are inserted when the housings are mated, and latching features 304 that engage the latching tabs 202.
- the latching features 304 are protrusions formed from the plastic of the latching channels that extend inwardly and are inserted into the openings 210 in the latching tabs 202 when the housings are mated.
- the latching features 304 in the illustrated embodiment are wedge shaped so as to
- the receptacle housing also includes an O-ring seat 306 in which an O-ring can be installed so as to provide a water- resistant seal when the housings are mated.
- Figure 4 is a perspective illustration that shows the plug of Figure 2B aligned with a panel-mountable receptacle 400 that includes latching features identical with the cable-mountable receptacle of Figure 3. Mating of the two housings requires only that the two housings 200, 300 be aligned as shown, and then pushed together until the latching tabs 200 snap outward so that the holes 212 in the latching tabs 202 surround the latching features 304 of the receptacle 400.
- Figure 5 is a perspective view of the two housings 200, 400 mated to each other, as seen from a different angle.
- Figure 6A is a top view of the plug housing of Figures 2A and 2B shown in a partial sectional view so that the placement of a latching tab 202 in a retaining channel 204 can be seen.
- the action of the retaining hook 208 in preventing removal of the latching tab 202 after it has been inserted in the retaining channel 204 can clearly be seen in the figure.
- Figure 6B is an enlarged view of the sectional region of Figure 6A.
- Figures 7A through 7C are top, side, and perspective views respectively of the latching tab 202 of the embodiment of Figures 2A and 2B.
- Figures 8A, 8B, and 8C are similar views of a latching tab 802 that includes a latching hook 810 instead of a hole 210.
- Figure 9 is a partial sectional top view of the mated housings 200, 400 of Figure 5.
- the penetration of the latching feature 304 of the receptacle housing 400 through the hole 210 in the latching tab 202 can be clearly seen in the sectional section.
- Figure 10 is a similar illustration of an embodiment in which the latching tabs 802 of Figure 8 having latching hooks 802 instead of holes 202 have been installed. It can be seen in the sectional region that when the
- the latching hooks 810 snap outward into latching holes 1002 provided in the receptacle housing 1000.
- Figure 1 1 is a perspective view of a plug housing 1 100 in an embodiment where the pressing tab 212 is replaced by a rigid cover 1 1 12 that prevents a user from pressing on the latch tabs 202 without use of a tool.
- Figure 12 is a perspective view showing the plug housing of Figure 1 1 mated with the panel-mountable receptacle housing of Figure 4.
- the rigid covers 1 1 12 prevent release of the housings using fingers only. Instead, it is necessary to insert a small screw-driver or similar tool into the release openings 1204 provided as part of the latching features 304 of the receptacle 400.
- Figure 13 is a perspective sectional view similar to Figure 9, but including the plug housing 1 100 of Figure 1 1.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1416966.8A GB2515932B (en) | 2012-04-27 | 2012-04-27 | Compact latching mechanism for a mid-power electrical connector |
JP2015508927A JP6255388B2 (en) | 2012-04-27 | 2012-04-27 | Small latch mechanism for medium power electrical connectors |
PCT/US2012/035347 WO2013162590A1 (en) | 2012-04-27 | 2012-04-27 | Compact latching mechanism for a mid-power electrical connector |
CN201280072180.3A CN104205517B (en) | 2012-04-27 | 2012-04-27 | Compact lockable mechanism for mid power electric connector |
DE112012006273.6T DE112012006273B4 (en) | 2012-04-27 | 2012-04-27 | MEDIUM POWER ELECTRICAL CONNECTOR WITH A LATCH SYSTEM |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2012/035347 WO2013162590A1 (en) | 2012-04-27 | 2012-04-27 | Compact latching mechanism for a mid-power electrical connector |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013162590A1 true WO2013162590A1 (en) | 2013-10-31 |
Family
ID=49483689
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2012/035347 WO2013162590A1 (en) | 2012-04-27 | 2012-04-27 | Compact latching mechanism for a mid-power electrical connector |
Country Status (5)
Country | Link |
---|---|
JP (1) | JP6255388B2 (en) |
CN (1) | CN104205517B (en) |
DE (1) | DE112012006273B4 (en) |
GB (1) | GB2515932B (en) |
WO (1) | WO2013162590A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020212114A1 (en) * | 2019-04-18 | 2020-10-22 | Leoni Bordnetz-Systeme Gmbh | Apparatus, plug connector set, indicator element and method for identifying initial disconnection of a plug connection |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109687202A (en) * | 2019-02-20 | 2019-04-26 | 苏州华旃航天电器有限公司 | A kind of quick locking reconciliation lock set and the electric connector using the component |
US20230388479A1 (en) | 2020-10-30 | 2023-11-30 | Kyocera Corporation | Detection device and image display system |
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US20030156797A1 (en) * | 2002-02-19 | 2003-08-21 | Itt Manufacturing Enterprises, Inc. | Latching fiber optic connector system |
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US20110244710A1 (en) * | 2010-04-05 | 2011-10-06 | Anderson Power Products, Inc. | Tool-releasable solar power connector |
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2012
- 2012-04-27 JP JP2015508927A patent/JP6255388B2/en active Active
- 2012-04-27 CN CN201280072180.3A patent/CN104205517B/en active Active
- 2012-04-27 GB GB1416966.8A patent/GB2515932B/en active Active
- 2012-04-27 DE DE112012006273.6T patent/DE112012006273B4/en active Active
- 2012-04-27 WO PCT/US2012/035347 patent/WO2013162590A1/en active Application Filing
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US20030156797A1 (en) * | 2002-02-19 | 2003-08-21 | Itt Manufacturing Enterprises, Inc. | Latching fiber optic connector system |
US20060217003A1 (en) * | 2005-03-28 | 2006-09-28 | Tyco Electronics Corporation | Connector system with polarization and latching features |
US20060276071A1 (en) * | 2005-06-06 | 2006-12-07 | Scully Signal Company | Repeatably releasable cable connector |
US20110189877A1 (en) * | 2010-02-04 | 2011-08-04 | Anderson Power Products, Inc. | Water-tight electrical connector with laterally compressed o-ring |
US20110244710A1 (en) * | 2010-04-05 | 2011-10-06 | Anderson Power Products, Inc. | Tool-releasable solar power connector |
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WO2020212114A1 (en) * | 2019-04-18 | 2020-10-22 | Leoni Bordnetz-Systeme Gmbh | Apparatus, plug connector set, indicator element and method for identifying initial disconnection of a plug connection |
Also Published As
Publication number | Publication date |
---|---|
JP2015515109A (en) | 2015-05-21 |
DE112012006273T5 (en) | 2015-02-19 |
GB2515932A (en) | 2015-01-07 |
GB201416966D0 (en) | 2014-11-12 |
DE112012006273B4 (en) | 2023-09-21 |
GB2515932B (en) | 2017-04-26 |
CN104205517A (en) | 2014-12-10 |
JP6255388B2 (en) | 2017-12-27 |
CN104205517B (en) | 2016-08-31 |
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