CN106992397B - Graded locking assembly for electrical connector - Google Patents

Graded locking assembly for electrical connector Download PDF

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Publication number
CN106992397B
CN106992397B CN201710203607.3A CN201710203607A CN106992397B CN 106992397 B CN106992397 B CN 106992397B CN 201710203607 A CN201710203607 A CN 201710203607A CN 106992397 B CN106992397 B CN 106992397B
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China
Prior art keywords
hanging nose
stage
locking
nose
plug
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CN201710203607.3A
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Chinese (zh)
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CN106992397A (en
Inventor
燕向阳
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Sichuan Yonggui Science and Technology Co Ltd
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Sichuan Yonggui Science and Technology Co Ltd
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Priority to CN201710203607.3A priority Critical patent/CN106992397B/en
Publication of CN106992397A publication Critical patent/CN106992397A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • H01R13/6271Latching means integral with the housing
    • H01R13/6272Latching means integral with the housing comprising a single latching arm
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/627Snap or like fastening
    • H01R13/6271Latching means integral with the housing
    • H01R13/6273Latching means integral with the housing comprising two latching arms
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The invention discloses a grading locking component for an electric connector, which belongs to an electric connector structure, and comprises a plug shell and a socket shell, wherein a first-stage hanging nose and a second-stage hanging nose are arranged outside the plug shell, the vicinity of the middle parts of the first-stage hanging nose and the second-stage hanging nose are movably arranged on the plug shell, the second-stage hanging nose is arranged above the first-stage hanging nose, and a first unlocking part and a second unlocking part are respectively arranged at the tail ends of the first-stage hanging nose and the second-stage hanging nose; the outer part of the plug shell is also movably provided with a secondary locking slide block and other structures; through the first-level hanging nose and the second-level hanging nose on the plug shell, the structure that makes both be lever type hangs the platform, the second-level hanging platform on the socket shell respectively and hangs to form hierarchical locking structure between plug shell and socket shell, can control the separation time difference of power contact subassembly and signal contact subassembly in the electric connector, effectively solve the electric connector and lead to producing separation fault problems such as electric spark because of separation speed is too fast when high pressure separation.

Description

Graded locking assembly for electrical connector
Technical Field
The present invention relates to an electrical connector structure, and more particularly, to a stepped locking assembly for an electrical connector.
Background
The electric connector generally comprises a plug and a socket, and male and female contact pieces in the connector can be contacted after the plug and the socket are plugged, so that a circuit is switched from a breaking state to a connection state, and a locking structure is generally arranged in the electric connector to ensure that the electric connector can work normally under different working conditions, so that the male and female contact pieces can be reliably contacted in the working process of the electric connector. In view of safety, the new energy automobile industry currently requires that the high voltage electrical connector has a High Voltage Interlock (HVIL) function, i.e. a control signal is required to control the high voltage circuit. After the high-voltage line is physically connected, the high-voltage line is controlled to be conducted by a control signal and then can be electrified; similarly, when the high voltage circuit is disconnected, the control signal should be disconnected first, the current of the high voltage line is disconnected, and then the connection of the high voltage line is physically disconnected. When the existing electric connector realizes the functions, the contact length of the contact piece is mainly controlled, namely, the length of the power contact piece (used for a high-voltage loop) is designed to be longer than that of the signal contact piece (used for a control loop), so that the use requirement that the high-voltage line is firstly contacted and then disconnected when the connector is plugged in and separated is met; however, although the long and short needle structure can realize the on-off control of the control loop on the high-voltage loop, the high-voltage loop has an energy release process at the moment after power failure, and when the connector is unlocked and separated on the headstock, the separation speed is possibly fast, so that the signal contact and the power contact are almost simultaneously disconnected, and separation faults such as electric sparks and the like can be generated due to the energy release of the high-voltage line, and therefore, the existing electric connector with the primary locking structure can not meet the use requirement of a new energy automobile. There is a need for research and improvement in existing electrical connector locking arrangements.
Disclosure of Invention
One of the objectives of the present invention is to provide a stepped locking assembly for an electrical connector, which is intended to solve the technical problems of the prior art that the electrical connector is prone to generate spark and other separation faults due to too high separation speed during high-voltage separation.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a grading type locking component for an electric connector, which comprises a plug shell and a socket shell, wherein a first-stage hanging nose and a second-stage hanging nose are arranged outside the plug shell, the vicinity of the middle parts of the first-stage hanging nose and the second-stage hanging nose are movably arranged on the plug shell, the second-stage hanging nose is arranged above the first-stage hanging nose, and a first unlocking part and a second unlocking part are respectively arranged at the tail ends of the first-stage hanging nose and the second-stage hanging nose; the plug comprises a plug shell, a first-stage hanging nose and a second-stage hanging nose, wherein the outer part of the plug shell is also movably provided with a second-stage locking sliding block, the front end of the second-stage locking sliding block is provided with a cantilever hanging nose, and the cantilever hanging nose corresponds to the first-stage hanging nose in position and is used for being hung outside the first-stage hanging nose after being hung by the cantilever hanging nose; the socket shell is provided with a first-stage hanging table and a second-stage hanging table which correspond to the first-stage hanging nose and the second-stage hanging nose.
Preferably, the further technical scheme is as follows: the locking block containing cavity is formed between the primary hanging nose and the secondary hanging nose, the secondary locking sliding blocks are installed in the locking block containing cavity, and sliding grooves matched with the secondary locking sliding blocks are formed in two sides of the locking block containing cavity.
The further technical scheme is as follows: the two sides of the secondary locking sliding block are respectively provided with an anti-falling hanging nose and an indicating protrusion, and the two sides of the plug shell are respectively provided with a locking positioning window corresponding to the anti-falling hanging nose and an unlocking indicating window corresponding to the indicating protrusion.
The further technical scheme is as follows: and a third unlocking part is arranged at the tail end of the secondary locking sliding block and protrudes upwards.
The further technical scheme is as follows: the cantilever hanging nose is arranged in the middle of two sides of the secondary locking sliding block.
The further technical scheme is as follows: the inner cavity of the plug housing is matched with the outer contour of the socket housing.
The further technical scheme is as follows: the upper parts of the first unlocking part and the second unlocking part are respectively provided with a non-slip protrusion.
The further technical scheme is as follows: the plug shell and the socket shell are internally provided with power contact assemblies and signal contact assemblies which are matched with each other.
Compared with the prior art, the invention has one of the following beneficial effects: the first-stage hanging nose and the second-stage hanging nose on the plug shell are respectively hung with the first-stage hanging platform and the second-stage hanging platform on the socket shell in a lever type structure, so that a hierarchical locking structure is formed between the plug shell and the socket shell, further, the separation time difference of the power contact assembly and the signal contact assembly in the electric connector can be controlled, the problems that electric sparks and other separation faults are generated due to too high separation speed of the electric connector in high-voltage separation are effectively solved, and meanwhile, the hierarchical locking assembly applicable to the electric connector is simple in structure, particularly applicable to the electric connector which is used as high-voltage interlocking on a new energy automobile, and also applicable to other electric connectors, and wide in application range.
Drawings
FIG. 1 is a schematic view showing the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic view illustrating a plug housing according to an embodiment of the present invention
FIG. 3 is a schematic view illustrating a structure of a secondary lock slide according to an embodiment of the present invention;
fig. 4 is a first use state sectional view for explaining an embodiment of the present invention;
fig. 5 is a sectional view for explaining a second use state of one embodiment of the present invention;
in the figure, 1 is a plug housing, 11 is a locking block accommodating cavity, 12 is a locking positioning window, 13 is an unlocking indication window, 2 is a socket housing, 21 is a primary hanging table, 22 is a secondary hanging table, 3 is a primary hanging nose, 31 is a first unlocking part, 41 is a second unlocking part, 5 is a secondary locking slide block, 51 is a cantilever hanging nose, 52 is an anti-falling hanging nose, 53 is an indication protrusion, and 54 is a third unlocking part.
Detailed Description
The invention is further elucidated below in connection with the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention is a hierarchical locking assembly for an electrical connector, which includes a plug housing 1 and a socket housing 2, and, as shown in fig. 2, a primary hanging nose 3 and a secondary hanging nose 4 are provided on the outside of the plug housing 1, and the middle parts of the primary hanging nose 3 and the secondary hanging nose 4 are movably installed on the plug housing 1, even if they form a lever structure on the plug housing 1, and the secondary hanging nose 4 is disposed above the primary hanging nose 3, and based on the lever structure, a first unlocking portion 31 and a second unlocking portion 41 are formed on the ends of the primary hanging nose 3 and the secondary hanging nose 4, respectively, as shown in the drawings; more importantly, a secondary locking sliding block 5 is movably arranged outside the plug shell 1, a cantilever hanging nose 51 is arranged at the front end of the secondary locking sliding block 5, and the cantilever hanging nose 51 corresponds to the position of the primary hanging nose 3, so that the cantilever hanging nose 51 can be directly hung outside the primary hanging nose 3 after the primary hanging nose 3 is hung, and a structure shown in figure 4 is formed; further, as shown in fig. 1, the aforementioned socket housing 2 is externally provided with a primary mount 21 and a secondary mount 22 corresponding to the primary mount 3 and the secondary mount 4. Meanwhile, in order to facilitate the operation of the lever structures on the first-stage hanging nose 3 and the second-stage hanging nose 4, the prior art may be referred to, and anti-slip protrusions are disposed on the upper portions of the first unlocking portion 31 and the second unlocking portion 41.
In this embodiment, through the first-stage hanging nose 3 and the second-stage hanging nose 4 on the plug housing 1, and make the two be lever-type structure and hang the bench 21, the second-stage hanging bench 22 on the socket housing 2 respectively, thereby form hierarchical locking structure between the plug housing 1 and the socket housing 2, and then when being applied to the electric connector of high voltage heavy current, can control the separation time difference of power contact assembly and signal contact assembly in the electric connector, effectively solve the electric connector and lead to producing electric spark and other separation trouble problems because of separation speed is too fast when the high voltage separates.
The secondary locking slide block 5 can form an effective secondary locking between the plug housing 1 and the socket housing 2, so that the secondary locking slide block 5 is convenient to install, the positions of the primary hanging nose 3 and the secondary hanging nose 4 on the plug housing 1 can be adjusted, a locking block accommodating cavity 11 is formed between the primary hanging nose 3 and the secondary hanging nose 4, the secondary locking slide block 5 is installed in the locking block accommodating cavity 11, sliding grooves matched with the secondary locking slide block 5 are arranged on two sides of the locking block accommodating cavity 11, and therefore the secondary locking slide block 5 can slide back and forth in the locking block accommodating cavity 11 conveniently, and the cantilever hanging nose 51 on the upper portion of the secondary locking slide block can be hung and unlocked on the hung primary hanging nose 3.
In another embodiment of the present invention, the secondary locking slide 5 is preferably configured as shown in fig. 3, and the cantilever lugs 51 are preferably disposed at the middle of two sides of the secondary locking slide 5; preferably, an anti-falling hanging nose 52 and an indicating protrusion 53 are disposed on both sides of the secondary locking slide 5, and based on the structure of the secondary locking slide 5, as shown in fig. 2, locking positioning windows 12 corresponding to the anti-falling hanging nose 52 and unlocking indicating windows 13 corresponding to the indicating protrusions 53 are also disposed on both sides of the plug housing 1; when the anti-falling hanging nose 52 enters the locking positioning window 12 to form a hanging, the secondary locking sliding block 5 forms secondary locking outside the plug shell 1, the cantilever hanging nose 51 is also hung on the primary hanging nose 3 after the hanging, the indicating protrusion 53 is also arranged in the unlocking indicating window 13, and when the indicating protrusion 53 is arranged in the unlocking indicating window 13, the secondary locking sliding block 5 is in a locking state currently; the locking and unlocking of the anti-falling nose 52 and the locking positioning window 12 can also be operated by sliding the secondary locking slide block 5 in the locking block accommodating cavity 11.
Further, in order to facilitate the reciprocating operation of the secondary locking slide 5, a third unlocking portion 54 may be provided at the end of the secondary locking slide 5, and the third unlocking portion 54 may be protruded upward, so as to form a structure as shown in fig. 3.
As mentioned above, the locking assembly can be applied to high-current high-voltage electrical connectors, so that the power contact assembly and the signal contact assembly which are matched with each other can be arranged inside the plug housing 1 and the socket housing 2; and as shown in fig. 1, the inner cavity of the plug housing 1 and the outer contour of the receptacle housing 2 need to be set to coincide with each other.
Referring to fig. 4 and 5, in the above-mentioned preferred embodiment of the present invention, in actual use, the plug housing 1 is sleeved on the socket housing 2, and the primary hanging nose 3 is engaged with the primary hanging stand 21, the secondary hanging nose 4 is engaged with the secondary hanging stand 22, the cantilever hanging nose 51 on the secondary locking slide 5 is engaged with the outer portion of the hung primary hanging nose 3, the anti-release hanging nose 52 is engaged with the locking positioning window 12, and the indication protrusion 53 is disposed in the unlocking indication window 13; at this time, the plug housing 1 and the socket housing 2 are locked, as shown in fig. 4;
when unlocking is needed, firstly, the anti-falling hanging nose 52 is released from being hung in the locking positioning window 12, the secondary locking sliding block 5 is slid backwards through the third unlocking part 54, and at the moment, the hanging of the outer part of the primary hanging nose 3 is also released by the cantilever hanging nose 51, as shown in fig. 5; then, the first unlocking part 31 is pressed down to enable the primary hanging nose 3 to tilt upwards, at the moment, the primary hanging nose 3 is unhooked from the primary hanging table 21, and similarly, the second unlocking part 41 is continuously pressed down to enable the secondary hanging nose 4 to tilt upwards, at the moment, the secondary hanging nose 4 is unhooked from the secondary hanging table 22; the plug housing 1 can then be pulled out of the socket housing 2, so far as the two are completely separated, as shown in fig. 1. Through the step unlocking mode, after the control signal of the electric connector is disconnected, the energy release process of the high-voltage loop existing in the outage again is kept for a sufficient time, and separation faults such as electric sparks and the like caused by too high separation speed are avoided; the safety of the electric connector is improved, and the electric connector is particularly suitable for being used as the electric connector on a new energy automobile.
In addition to the foregoing, references in the specification to "one embodiment," "another embodiment," "an embodiment," etc., indicate that the particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is intended that such feature, structure, or characteristic be implemented within the scope of the invention.
Although the invention has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the scope and spirit of the principles of this disclosure. More specifically, various variations and modifications may be made to the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, drawings and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will be apparent to those skilled in the art.

Claims (7)

1. A hierarchical locking assembly for an electrical connector, comprising a plug housing (1) and a socket housing (2), characterized in that: the plug comprises a plug shell (1), and is characterized in that a first-stage hanging nose (3) and a second-stage hanging nose (4) are arranged outside the plug shell (1), the vicinity of the middle parts of the first-stage hanging nose (3) and the second-stage hanging nose (4) are movably mounted on the plug shell (1), the second-stage hanging nose (4) is arranged above the first-stage hanging nose (3), and a first unlocking part (31) and a second unlocking part (41) are respectively arranged at the tail ends of the first-stage hanging nose (3) and the second-stage hanging nose (4); the plug comprises a plug shell (1), and is characterized in that a secondary locking sliding block (5) is movably arranged outside the plug shell (1), a cantilever hanging nose (51) is arranged at the front end of the secondary locking sliding block (5), and the cantilever hanging nose (51) corresponds to the primary hanging nose (3) in position and is used for being hung outside the primary hanging nose (3) after the primary hanging nose (3) is hung by the cantilever hanging nose (51);
a first-stage hanging table (21) and a second-stage hanging table (22) which correspond to the first-stage hanging nose (3) and the second-stage hanging nose (4) are arranged outside the socket shell (2); the locking block containing cavity (11) is formed between the primary hanging nose (3) and the secondary hanging nose (4), the secondary locking sliding block (5) is installed in the locking block containing cavity (11), and sliding grooves matched with the secondary locking sliding block (5) are formed in two sides of the locking block containing cavity (11).
2. The graduated locking assembly for an electrical connector as in claim 1, wherein: the two sides of the secondary locking sliding block (5) are respectively provided with an anti-falling hanging nose (52) and an indicating protrusion (53), and the two sides of the plug shell (1) are respectively provided with a locking positioning window (12) corresponding to the anti-falling hanging nose (52) and an unlocking indicating window (13) corresponding to the indicating protrusion (53).
3. The graduated locking assembly for an electrical connector as in claim 1, wherein: and a third unlocking part (54) is arranged at the tail end of the secondary locking sliding block (5), and the third unlocking part (54) protrudes upwards.
4. A stepped locking assembly for an electrical connector according to claim 1 or 3, wherein: the cantilever hanging nose (51) is arranged in the middle of two sides of the secondary locking sliding block (5).
5. The graduated locking assembly for an electrical connector as in claim 1, wherein: the inner cavity of the plug housing (1) is matched with the outer contour of the socket housing (2).
6. The graduated locking assembly for an electrical connector as in claim 1, wherein: the upper parts of the first unlocking part (31) and the second unlocking part (41) are respectively provided with a non-slip protrusion.
7. The graduated locking assembly for an electrical connector as in claim 1, wherein: the plug housing (1) and the socket housing (2) are internally provided with a power contact assembly and a signal contact assembly which are matched with each other.
CN201710203607.3A 2017-03-30 2017-03-30 Graded locking assembly for electrical connector Active CN106992397B (en)

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Application Number Priority Date Filing Date Title
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CN106992397B true CN106992397B (en) 2023-04-28

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Publication number Priority date Publication date Assignee Title
CN108316766B (en) * 2018-02-11 2019-07-02 四川永贵科技有限公司 A kind of key protecting structure on the connectors
CN108521051B (en) * 2018-06-15 2023-11-24 四川永贵科技有限公司 Secondary locking and time-delay unlocking structure
CN109088269A (en) * 2018-08-20 2018-12-25 上海徕木电子股份有限公司 A kind of CPA connector and Wiring harness connector
CN111313177B (en) * 2020-02-18 2021-04-02 无锡卡斯迪尔科技有限公司 Socket, plug and connector for electric automobile

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