CN107302153A - A kind of charging socket from protection - Google Patents
A kind of charging socket from protection Download PDFInfo
- Publication number
- CN107302153A CN107302153A CN201710481950.4A CN201710481950A CN107302153A CN 107302153 A CN107302153 A CN 107302153A CN 201710481950 A CN201710481950 A CN 201710481950A CN 107302153 A CN107302153 A CN 107302153A
- Authority
- CN
- China
- Prior art keywords
- accommodating chamber
- protective plate
- charging socket
- protection
- charging
- 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
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
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
-
- 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
- H01R13/44—Means for preventing access to live contacts
- H01R13/447—Shutter or cover plate
- H01R13/453—Shutter or cover plate opened by engagement of counterpart
- H01R13/4538—Covers sliding or withdrawing in the direction of engagement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
Landscapes
- Connector Housings Or Holding Contact Members (AREA)
Abstract
The invention discloses a kind of charging socket from protection, including：Accommodating chamber is offered on socket main body, the socket main body, the electric terminal of the charging socket is contained in the first end of the accommodating chamber, the second end of the accommodating chamber forms uncovered structure；Protector, the protector includes protective plate and resilience part, the second end for being arranged at the accommodating chamber of the protective plate slip, the resilience part is connected with the protective plate, to provide the elastic force source that the protective plate is moved from the first end of the accommodating chamber to the second end；The protective plate be provided with multiple flutings, it is multiple it is described slot coordinate one by one with the electric terminal, the protective plate from the second end of the accommodating chamber to first end move when, the electric terminal is fed through the fluting.The present invention can be reduced because of situations such as personnel neglect the generation for causing to enter substantial amounts of dust, water and metallic foreign body inside charging socket to greatest extent, and the security performance of Vehicular charging is greatly improved.
Description
Technical field
The present invention relates to charging system technical field, particularly a kind of charging socket from protection.
Background technology
Charging electric vehicle socket, which mainly has, uses two kinds of AC and DC socket.Its number of terminals, size are different, but whole
Body structure is similar.Its function be electric automobile by electrical interface, when user is needed for Vehicular charging, only need to by charging plug insertion fill
Electrical socket, so as to realize structure locking, electric terminal is plugged together, and charging then can be achieved in vehicle.
Current charging electric vehicle socket only realizes basic function, when car owner needs charging, opens charging socket protection
Lid, inserts charging socket by charging plug, realizes Vehicular charging；After electricity is charged, car owner will pull out charging plug, fasten charging
Socket protective cover, completes charging process.
The problem of existing structure is present, which is that most of users have no, charges electricity, pulls out after charging plug, fastens charging socket
The custom of protective cover.Once vehicle is in traveling or quiescing process, charging socket protective cover is not fastened, i.e. charging socket inner chamber is each
Structure (contain electric component) it is exposed outside, so as to fully be merged with dust, rainwater etc., charging socket internal electric terminal is made
Into corrosion, further, influence plugs and sockets plugs together the contact resistance between rear electric terminal, so that cause contact resistance to increase,
In charging process, caloric value is significantly increased.Ultimately result in the security incidents such as socket, plug scaling loss generation.Charging socket it is exposed
Outside, or even occur that metallic foreign body enters, the direct generation material risk such as short circuit during charging.
For above mentioned problem, solution route mainly has two in the prior art：
First, charging socket only realizes functional requirement, part producing business charging socket is designed with manual protective cover (lid with
Socket is separated, and is connected the two with a connecting line), when needed, by car owner by lid button to charging socket, realize that charging is inserted
Seat protection；
2nd, charging socket is designed with automatic opening protection function lid structure, user-friendly.Specifically, its principle and book clamp
It is similar.After electricity is charged, user overcomes screen resilience, and protective cover is fastened, and protective cover latch hook will lock up protective cover, it is to avoid screen resilience
Flicked；When user needs charging, protective cover latch hook need to only be decontroled, protective cover is automatically springed open.
Above-mentioned two solution relies on people and goes to realize that charging socket is protected.Once human factor causes socket not prevented
Shield, change and ambient influnence, will directly affect charging electric vehicle safety over time.
The content of the invention
It is an object of the invention to provide a kind of charging socket from protection, it can not be prevented automatically with solving existing charging socket
Shield, causes electrical contact resistance change occur greatly, caloric value increases in charging process, the technical problem of security risk occurs.
The invention provides a kind of charging socket from protection, including：
Offer accommodating chamber on socket main body, the socket main body, the electric terminal of the charging socket is contained in described
In the first end of accommodating chamber, the second end of the accommodating chamber forms uncovered structure；
Protector, the protector includes protective plate and resilience part, and the protective plate slip is arranged at the receiving
Second end of chamber, the resilience part is connected with the protective plate, with provide the protective plate from the accommodating chamber first end to
The elastic force source of second end movement；
The protective plate is provided with multiple flutings, and multiple flutings coordinate one by one with the electric terminal, the protection
Plate from the second end of the accommodating chamber to first end move when, the electric terminal is fed through the fluting.
Charging socket as described above from protection, these, it is preferred to, the protective plate is provided with branch in circumferential outer rim
Support body, the outside of the supporter and the inwall of the accommodating chamber are brought into close contact.
Charging socket as described above from protection, these, it is preferred to, the resilience part includes return spring, described
The top of return spring is abutted with the protective plate, and the bottom of the return spring is abutted with the first end of the accommodating chamber.
The charging socket from protection as described above, these, it is preferred to, be additionally provided with the socket main body protective cover and
Lock piece, the protective cover is articulated in the first side of the socket main body by the first drive-connecting shaft, and the lock piece is fixed on institute
The second side of socket main body is stated, when the protective cover turns to the opening that the accommodating chamber is completely covered, the protective cover and institute
State lock piece formation lock fit.
Charging socket as described above from protection, these, it is preferred to, the protective cover is away from first drive-connecting shaft
Side be provided with neck, the lock piece includes lock banking stop, and the lock banking stop is articulated in the socket master by the second drive-connecting shaft
On body, the lock banking stop is provided with claw away from the side of second drive-connecting shaft, and the claw is matched somebody with somebody with neck formation clamping
Close, the protective cover is locked on the lock piece.
Charging socket as described above from protection, these, it is preferred to, the fluting is cross fluting.
Charging socket as described above from protection, these, it is preferred to, in the electric terminal pair on the protective plate
The position answered is provided with through hole, through hole and is provided with elastic plate, and the fluting is formed on elastic plate.
Charging socket as described above from protection, these, it is preferred to, the elastic plate material is rubber.
Compared with prior art, the present invention works as charging plug by being provided with the protector with fluting on charging socket
When inserting charging socket, protective plate is first contacted by charging plug, and promotes protective plate toward from the motion of accommodating chamber bottom, fluting is filled
The electric terminal thrust of electrical socket is opened, can effectively through charging socket electric terminal and its surface is cleaned, when filling
Plug from charging socket pull out when, protective plate resilience part bounce effect under, original position will be moved to again, slot
It is re-closing off, can be so reduced to greatest extent because personnel's carelessness causes to enter a large amount of inside charging socket in the case where being acted on without external force
Dust, water and generation situations such as metallic foreign body, the security performance of Vehicular charging is greatly improved.
Brief description of the drawings
Fig. 1 is integrally-built axonometric drawing one of the invention；
Fig. 2 is integrally-built axonometric drawing two of the invention；
Fig. 3 is the axonometric drawing under the hiding protector state of the present invention；
Fig. 4 is the axonometric drawing of charging plug；
Fig. 5 is the axonometric drawing of protector；
Fig. 6 is charging plug and charging socket socket plug together process schematic；
Fig. 7 is that charging plug plugs together process diagrammatic cross-section with charging socket；
Fig. 8 is that charging plug plugs together schematic diagram completely with charging socket.
Description of reference numerals：
11- socket main bodies, 12- accommodating chambers, 13- protective covers, 14- lock banking stops, the drive-connecting shafts of 15- first, 16- second is pivotally connected
Axle；
21- protectors, 22- protective plates, 23- return springs, 24- flutings, 25- supporters, 26- elastic plates；
31- electric terminals, 32- charging plugs.
Embodiment
The embodiments described below with reference to the accompanying drawings are exemplary, is only used for explaining the present invention, and can not be construed to
Limitation of the present invention.
Referring to figs. 1 to Fig. 8, The embodiment provides a kind of charging socket from protection, including：
Accommodating chamber 12 is offered on socket main body 11, the socket main body 11, the electric terminal 31 of the charging socket is received
In the first end for being dissolved in the accommodating chamber 12, the second end of the accommodating chamber 12 forms uncovered structure, and the accommodating chamber 12 is preferred
For the tube structure of upper opening, the exterior contour of its in-profile and charging plug 32 is adapted, in charging process, to have
What is imitated prevents the intrusion of the debris such as dust and rainwater, and it is the second end at first end, the opening at top that its bottom, which is,；
Protector 21, the protector 21 includes protective plate 22 and resilience part, and the slip of protective plate 22 is arranged at
Second end of the accommodating chamber 12, the exterior contour of the protective plate 22 and the in-profile of the accommodating chamber 12 are adapted, with
In uncharged state, the open-mouth of accommodating chamber 12 is covered in, the intrusion of the debris such as dust and rainwater, institute still can be effectively prevented
State resilience part to be connected with the protective plate 22, moved with providing the protective plate 22 from the first end of the accommodating chamber 12 to the second end
Dynamic elastic force source.
The protective plate 22 is provided with multiple flutings 24, and multiple flutings 24 coordinate one by one with the electric terminal 31,
The position of the fluting 24 and internal diameter are adapted with the position of electric terminal 31 and external diameter, and the protective plate 22 is accommodated by described
Second end of chamber 12 to first end move when, the electric terminal 31 is fed through the fluting 24, during this, and fluting 24 is pushed
Electric terminal 31, the top of electric terminal 31 fluting 24, it is to be understood that select flexible structure at the fluting 24, be preferably
Rubber parts, during fluting 24 is opened by top, the surface of 24 pairs of electric terminals 31 of fluting is cleaned.
The operation principle of above-described embodiment is：
During initial state, protective plate 22 is located on the second end of the accommodating chamber 12, when the insertion charging of charging plug 32 is inserted
During seat, protective plate 22 is first contacted by charging plug 32, and promotes protective plate 22 toward the first end motion from accommodating chamber 12, charging is inserted
First 32 are plugged together completely with charging socket, and fluting 24 is opened by the thrust of electric terminal 31 of charging socket, effectively can be inserted through charging
The electric terminal 31 of seat is simultaneously cleaned to its surface, in time the residue on cleaning accommodating chamber 12 and the surface of electric terminal 31.
When charging plug 32 is pulled out from charging socket, protective plate 22 will be transported again under the bounce effect of resilience part
Move to original position, fluting 24 is re-closing off in the case where being acted on without external force.
After fluting 24 is closed, even if car owner is after charging complete, the protection cap of not timely charge closing socket still can
The intrusion of the debris such as dust, rainwater effectively is prevented, so that the pollution of the electric terminal 31 of reduction charging socket to greatest extent
Degree, the contact resistance of reduction charging plug 32 and charging socket, it is to avoid during energization, contact surface loose contact produces big calorimetric
Amount, appearance, which is overheated, melted, electric equipment compartment has water and metallic foreign body causes the security incidents such as short circuit.
In a kind of embodiment, in order to ensure the Stability Analysis of Structures of protective plate 22 and movement are smooth, the protective plate 22 is in week
It is provided with supporter 25, the protective plate to be provided with through hole, through hole in the corresponding position of the electric terminal to outer rim and sets
Flexible plate 26, the fluting 24 is formed on elastic plate 26, and as the optimal technical scheme of the present embodiment, the fluting 24 is
Cross is slotted, 24 Stability Analysis of Structures of so slotting, while the thrust of electric terminal 31 for being electrically charged socket beneficial to fluting 24 is opened, institute
Elastic plate is stated for flexible material, preferably rubber, the outline of protective plate 22 is provided with the supporter 25 that rigid material is made, really
Guarantor's overall structure is indeformable, and the outside of the supporter 25 and the inwall of accommodating chamber 12 are brought into close contact, so that even if car owner
After charging complete, the protection cap of not timely charge closing socket still can effectively prevent invading for the debris such as dust, rainwater
Enter.
As the optimal technical scheme of the present embodiment, the resilience part includes return spring 23, the return spring 23
Top is abutted with the protective plate 22, and the bottom of the return spring 23 is abutted with the first end of the accommodating chamber 12, Ke Yili
Solution, the return spring 23 is distributed in accommodating chamber 12 provided with multiple, so as to provide returning for stable and uniform to protective plate 22
Multiple power, passes through the design of parallel resilient structures, it is to avoid protective plate 22 position occurs and do not inclined in same plane etc. in motion process
Skew wind danger, it is to avoid failed from protection and move unsteady phenomena, during initial state, return spring 23 freely stretches, charging
During the grafting of plug 32, return spring 23 is compressed, during charging plug 32 is pulled away, the protective plate 22 of the band of return spring 23
Gradually return.
In order that charging socket uncharged when, can effectively be protected, be additionally provided with the socket main body 11 anti-
Protecting cover 13 and lock piece, the protective cover 13 are articulated in the first side of the socket main body 11 by the first drive-connecting shaft 15, described
Lock piece is fixed in the second side of the socket main body 11, the present embodiment, the first side and the second side of the socket main body 11
The both sides of the accommodating chamber 12 are symmetrically positioned in, in uncharged state, the protective cover 13, which is turned to, is completely covered the receiving
During the opening of chamber 12, when will charge, lock fit is released for the protective cover 13 and lock piece formation lock fit,
The upset of protective cover 13 is to the position do not interfered with the charging plug 32, after charging complete, and protective cover 13 and lock piece are locked.
One of ordinary skill in the art is it is readily conceivable that the fit structure of protective cover 13 and lock piece has a variety of, this reality
Example preferably buckle-type is applied, simple in construction, durable, specifically, the protective cover 13 is away from first drive-connecting shaft 15
Side is provided with neck, and the lock piece includes lock banking stop 14, and the lock banking stop 14 is articulated in described insert by the second drive-connecting shaft 16
In seat main body 11, the lock banking stop 14 is provided with claw, the claw and the neck away from the side of second drive-connecting shaft 16
Formed and be engaged by clamping, the protective cover 13 is locked on the lock piece, torsion spring is additionally provided with second drive-connecting shaft 16,
So that claw to be deducted on neck.
Construction, feature and the action effect of the present invention, above institute is described in detail according to the embodiment shown in schema above
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change, or be revised as the equivalent embodiment of equivalent variations, still without departing from specification with illustrating during covered spirit,
All should be within the scope of the present invention.
Claims (8)
1. a kind of charging socket from protection, it is characterised in that：Including：
Accommodating chamber (12), the electric terminal of the charging socket are offered on socket main body (11), the socket main body (11)
(31) in the first end for being contained in the accommodating chamber (12), the second end of the accommodating chamber (12) forms uncovered structure；
Protector (21), the protector (21) includes protective plate (22) and resilience part, and protective plate (22) slip is set
The second end of the accommodating chamber (12) is placed in, the resilience part is connected with the protective plate (22), to provide the protective plate
(22) the elastic force source moved from the first end of the accommodating chamber (12) to the second end；
The protective plate (22) is provided with multiple flutings (24), and multiple flutings (24) are matched somebody with somebody one by one with the electric terminal (31)
Close, the protective plate (22) from the second end of the accommodating chamber (12) to first end move when, the electric terminal (31) wears
Cross the fluting (24).
2. the charging socket according to claim 1 from protection, it is characterised in that：The protective plate (22) is in circumferential outer rim
Supporter (25) is provided with, the outside of the supporter (25) and the inwall of the accommodating chamber (12) are brought into close contact.
3. the charging socket according to claim 1 from protection, it is characterised in that：The resilience part includes return spring
(23), the top of the return spring (23) is abutted with the protective plate (22), the bottom of the return spring (23) with it is described
The first end of accommodating chamber (12) is abutted.
4. the charging socket according to claim 1 from protection, it is characterised in that：It is additionally provided with the socket main body (11)
Protective cover (13) and lock piece, the protective cover (13) are articulated in the of the socket main body (11) by the first drive-connecting shaft (15)
Side, the lock piece is fixed on the second side of the socket main body (11), and the protective cover (13), which turns to, is completely covered institute
When stating the opening of accommodating chamber (12), the protective cover (13) and lock piece formation lock fit.
5. the charging socket according to claim 4 from protection, it is characterised in that：The protective cover (13) is away from described the
The side of one drive-connecting shaft (15) is provided with neck, and the lock piece includes lock banking stop (14), and the lock banking stop (14) passes through the second pivot
Spindle (16) is articulated on the socket main body (11), and the lock banking stop (14) sets away from the side of second drive-connecting shaft (16)
There is claw, the claw is engaged by clamping with neck formation, the protective cover (13) is locked on the lock piece.
6. the charging socket according to claim 1 from protection, it is characterised in that：The fluting (24) is opened for cross
Groove.
7. the charging socket according to claim 1 from protection, it is characterised in that：In the electricity on the protective plate (22)
The corresponding position of gas terminal (31), which is provided with through hole, through hole, is provided with elastic plate (26), and the fluting (24) is formed at elastic plate
(26) on.
8. the charging socket according to claim 7 from protection, it is characterised in that：Elastic plate (26) material is rubber
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481950.4A CN107302153A (en) | 2017-06-22 | 2017-06-22 | A kind of charging socket from protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710481950.4A CN107302153A (en) | 2017-06-22 | 2017-06-22 | A kind of charging socket from protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107302153A true CN107302153A (en) | 2017-10-27 |
Family
ID=60135597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710481950.4A Pending CN107302153A (en) | 2017-06-22 | 2017-06-22 | A kind of charging socket from protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107302153A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109326921A (en) * | 2018-11-29 | 2019-02-12 | 威海市泓淋电力技术股份有限公司 | A kind of electric vehicle alternating-current charge socket |
| CN109462075A (en) * | 2018-11-30 | 2019-03-12 | 威海市泓淋电力技术股份有限公司 | A kind of DC charging rifle insulation shell |
| CN110620304A (en) * | 2019-10-08 | 2019-12-27 | 杭州芯意智能科技有限公司 | Automatic separation device for charging new energy automobile |
| WO2020123247A1 (en) * | 2018-12-10 | 2020-06-18 | Zoox, Inc. | Charge coupler and method for autonomously charging vehicle batteries |
| CN111403954A (en) * | 2020-03-18 | 2020-07-10 | 宁波宣仕电器有限公司 | Courtyard movable socket box |
| CN111492250A (en) * | 2017-12-25 | 2020-08-04 | 恩普乐股份有限公司 | Socket for electric component |
| CN112371939A (en) * | 2020-10-28 | 2021-02-19 | 西安建筑科技大学 | Power-off protection device of centrifugal casting machine |
| CN116646778A (en) * | 2023-05-25 | 2023-08-25 | 武汉中光连接器有限公司 | Locking structure of electric connector |
| CN117353093A (en) * | 2023-12-04 | 2024-01-05 | 国网湖北省电力有限公司 | Butt joint device for plugging power supply box |
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| DE3151560A1 (en) * | 1981-12-28 | 1983-09-15 | Peter Dipl.-Ing. 8500 Nürnberg Loewenhoff | Arrangement for automatically connecting a coupling part assigned to a vehicle and a stationary coupling part for an electrical connecting line, and a plug-in coupling for this |
| DE3731588A1 (en) * | 1987-09-19 | 1989-04-06 | Asea Brown Boveri | Plug socket having a covering device |
| US20060270254A1 (en) * | 2004-12-23 | 2006-11-30 | Chiang Shu M | Dustproof receptacle connector |
| CN103872503A (en) * | 2012-12-17 | 2014-06-18 | 深圳富泰宏精密工业有限公司 | Connector interface protection structure |
| CN204144530U (en) * | 2014-06-24 | 2015-02-04 | 衢州顶点电子科技有限公司 | Anti-electric shock safety plug |
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2017
- 2017-06-22 CN CN201710481950.4A patent/CN107302153A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3151560A1 (en) * | 1981-12-28 | 1983-09-15 | Peter Dipl.-Ing. 8500 Nürnberg Loewenhoff | Arrangement for automatically connecting a coupling part assigned to a vehicle and a stationary coupling part for an electrical connecting line, and a plug-in coupling for this |
| DE3731588A1 (en) * | 1987-09-19 | 1989-04-06 | Asea Brown Boveri | Plug socket having a covering device |
| US20060270254A1 (en) * | 2004-12-23 | 2006-11-30 | Chiang Shu M | Dustproof receptacle connector |
| CN103872503A (en) * | 2012-12-17 | 2014-06-18 | 深圳富泰宏精密工业有限公司 | Connector interface protection structure |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111492250A (en) * | 2017-12-25 | 2020-08-04 | 恩普乐股份有限公司 | Socket for electric component |
| CN109326921A (en) * | 2018-11-29 | 2019-02-12 | 威海市泓淋电力技术股份有限公司 | A kind of electric vehicle alternating-current charge socket |
| CN109462075B (en) * | 2018-11-30 | 2024-03-22 | 威海市泓淋电力技术股份有限公司 | Insulating shell of direct current charging gun |
| CN109462075A (en) * | 2018-11-30 | 2019-03-12 | 威海市泓淋电力技术股份有限公司 | A kind of DC charging rifle insulation shell |
| WO2020123247A1 (en) * | 2018-12-10 | 2020-06-18 | Zoox, Inc. | Charge coupler and method for autonomously charging vehicle batteries |
| US11130412B2 (en) | 2018-12-10 | 2021-09-28 | Zoox, Inc. | Charge coupler and method for autonomously charging vehicle batteries |
| US11682915B2 (en) | 2018-12-10 | 2023-06-20 | Zoox, Inc. | Charge coupler and method for autonomously charging vehicle batteries |
| CN110620304A (en) * | 2019-10-08 | 2019-12-27 | 杭州芯意智能科技有限公司 | Automatic separation device for charging new energy automobile |
| CN111403954A (en) * | 2020-03-18 | 2020-07-10 | 宁波宣仕电器有限公司 | Courtyard movable socket box |
| CN112371939A (en) * | 2020-10-28 | 2021-02-19 | 西安建筑科技大学 | Power-off protection device of centrifugal casting machine |
| CN116646778B (en) * | 2023-05-25 | 2024-01-05 | 武汉中光连接器有限公司 | Locking structure of electric connector |
| CN116646778A (en) * | 2023-05-25 | 2023-08-25 | 武汉中光连接器有限公司 | Locking structure of electric connector |
| CN117353093A (en) * | 2023-12-04 | 2024-01-05 | 国网湖北省电力有限公司 | Butt joint device for plugging power supply box |
| CN117353093B (en) * | 2023-12-04 | 2024-02-02 | 国网湖北省电力有限公司 | Butt joint device for plugging power supply box |
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Application publication date: 20171027 |
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| RJ01 | Rejection of invention patent application after publication |