US20200006896A1 - Visual connector locking system - Google Patents
Visual connector locking system Download PDFInfo
- Publication number
- US20200006896A1 US20200006896A1 US16/022,047 US201816022047A US2020006896A1 US 20200006896 A1 US20200006896 A1 US 20200006896A1 US 201816022047 A US201816022047 A US 201816022047A US 2020006896 A1 US2020006896 A1 US 2020006896A1
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- US
- United States
- Prior art keywords
- electrical connector
- female
- color
- locking tab
- wall
- 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.)
- Granted
Links
- 230000000007 visual effect Effects 0.000 title description 2
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920006230 thermoplastic polyester resin Polymers 0.000 description 1
- 238000011179 visual inspection Methods 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
- H01R13/62—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
- H01R13/64—Means for preventing incorrect coupling
- H01R13/641—Means for preventing incorrect coupling by indicating incorrect coupling; by indicating correct or full engagement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/26—Connectors or connections adapted for particular applications for vehicles
Definitions
- the present disclosure relates generally to connector locking system, for example, a connector that shows a visual indication that the connection is locked and secured during assembly in a tightly spaced automotive subassembly.
- Automobile vehicles contain numerous electrical connectors in which a axaale electrical connector at the end of a wire, pair of wires, or wiring harness is inserted into a female electrical connector mounted inside or in an opening of a panel of an automotive subassembly.
- the electrical connectors are located within spaces that are difficult to reach, may have limited visibility, and may not be accessible once a connection is made.
- the connector typically goes in the internal connection for a headlamp; the connector connecting the main wire harness of the headlamp to the wire harness from the PCB board.
- wires are connected to the rear of each of female connector and male connector.
- the connection might be of a sub system connecting to the main system by the like for example a PCB connecting to the main wire harness inside of a headlamp.
- FIG. 1 is a diagram showing an example of a tightly spaced enclosure containing a female electrical connector.
- a female electrical connector 101 may be set back by a distance D from the entrance to the enclosure 103 and a clearance C to an inside surface of the enclosure 103 in the subassembly may be only that necessary to accommodate the female electrical connector 101 .
- the clearance C may be only a few centimeters, in the range of 2 to 5 centimeters depending on the type of automotive subassembly.
- the female electrical connector 101 may be set back by a distance D that is sufficient to ensure room for mounting, in this case the auxiliary power outlet. Once connected, the wiring, plug is not intended to be accessed. However, such electrical connectors may not be fully secured when connected; resulting in a disconnection after a vehicle has beers shipped or sold. In these cases, the vehicle may have to be returned due to electrical failure of connection of the PCB assembly and main wire harness.
- One solution to insuring that a male connector is fully inserted into a female connector has been, as shown in FIG. 2 , to include a structure 211 in the male connector 201 and/or the female connector 203 that causes a clicking sound to occur when the male connector 201 is fully inserted into the female connector 203 .
- the structure 211 that causes the clicking sound does not itself insure a sufficient connection. Also, in the manufacturing environment where the connection may be performed, surrounding noise may be such that a person that is inserting the male connector cannot actually hear the clicking sound, or may mistakenly believe that the clicking sound occurred.
- FIG. 1 is a diagram showing an example of a tight space enclosing a female electrical connector
- FIG. 2 is a perspective view of a conventional electrical connector assembly
- FIG. 3 is a perspective view of an electrical connector assembly in which a male electrical connector is being inserted into a female electrical connector according to an exemplary aspect of the disclosure
- FIG. 4 is a cut-out view of the male electrical connector in an inserted position according to an exemplary aspect of the disclosure
- FIG. 5 is a perspective view of a male electrical connector in the fully inserted position according to an exemplary aspect of the disclosure.
- FIG. 6 is a diagram showing an example of a tight space enclosing a female electrical connector and the position of a visible locking tab.
- a lockable electrical connector assembly and in particular a male electrical connector having a spring-action lock that locks the male electrical connector by way of a single locking tab that, pops up to project through a slot in a wall of the female electrical connector when the male electrical connector is fully inserted into the female electrical connector.
- the color of the locking tab is distinguished from the color of the female electrical connector such that a secure connection is easily observed.
- This lockable connector is particularly suited for connectors that are mounted on automotive assemblies in a tightly spaced enclosure.
- the lockable connector is particularly suited for connections that are not intended to be later disconnected.
- FIG. 3 is a perspective view of an electrical connector assembly according to an exemplary aspect of the disclosure.
- the electrical connector assembly is shown in a state in which a male electrical connector is being inserted into a female electrical connector in an insertion direction R.
- the male electrical connector 303 is to be plugged into a female electrical connector 301 , which is mounted, for example, via a mounting slot 305 to an enclosure in an automotive subassembly housing.
- the female electrical connector 301 includes an opening slot 307 in an upper wall.
- the electrical connection made by the connector assembly may be, for example, a connection for a 12V auxiliary power outlet.
- the power outlet may be a port, such as a USB port, that may be used for charging electric appliances, and/or connection to internal wiring of a vehicle.
- the male and female components of the electrical connector assembly may each be a molded plastic.
- Common plastic materials for electrical connectors include thermoplastic polyester resins, polyamide, polyethylene and polypropylene. It is preferable that the plastic material has stiffness and color retention.
- the male and female components of the electrical connector assembly are preferably made of visually distinct colors.
- the female electrical connector 301 may be made of a dark color, while the male electrical connector may be made of a bright color.
- the female electrical connector 301 may be made of a black colored plastic, while the male electrical connector 303 may be made of a white colored plastic.
- Other dark colors are possible for the female electrical connector, such as a dark blue, dark green, dark purple, or dark red.
- Bright colors that may be used as the color of the male electrical connector include, but are not limited to, bright yellow, bright orange, bright green.
- the male electrical connector is made of a metallic color or may include a color infused with a phosphor.
- FIG. 4 is a cut-out view of the electrical connector assembly in an inserted position according to an exemplary aspect of the disclosure.
- the male electrical connector 303 includes a spring-action portion 401 .
- the spring-action portion 401 performs a spring action such that a locking tab 403 pops up when a full connection is made. It is preferred that the length L of the spring-action portion 401 be of a length that the spring action force is sufficient for the locking tab 403 to pop into the slot 307 .
- the locking tab 403 projects by a height H above the outer surface of the female electrical connector 301 .
- the locking tab 403 has a flat surface on the side that is opposite to the insertion direction R and has a curved shape on the side facing the insertion direction R.
- the locking tab 403 may include a hook shape on the side that is opposite to the insertion direction R in order to partially overlap the upper surface of the female electrical connector and ensure that the lock action by the locking tab 403 cannot be undone.
- the Length L is: 5.5-8 mm, and Height H: 0.1-0.3 mm.
- FIG. 5 is a perspective view of an electrical connector assembly in the fully inserted position according to an exemplary aspect of the disclosure.
- the locking tab 403 is clearly visible when the electrical connector assembly is fully connected.
- the height H of the locking tab 403 above the outer surface of the wall of the female electrical connector is at least 0.1 mm to ensure visibility when viewed along the insertion direction axis R. Also, the visibility of the locking tab 403 ensures that the connection is secured.
- FIG. 6 is a diagram showing an example of an enclosure having a tight space enclosing a female electrical connector and the position of a visible locking tab.
- the locking tab 403 projects above the upper surface of the female electrical connector 301 by a height H that is sufficient to be visible in the enclosure 103 , where the female electrical connector 301 has a clearance C and is set back by a distance D within the enclosure 103 .
- the disclosure is not so limited.
- the female electrical connector 301 may be mounted at an upper surface of an upper wall of the connector such that the slot is located at a lower wall of the connector.
- the female electrical connector 301 may be mounted at a side surface.
- the orientation of the female electrical connector 301 is the inverse from that shown in FIG. 5 such that the lower surface having mounting slot 305 is mounted to an upper inner surface of an enclosure 103 .
- the male electrical connector 303 include only one locking tab 403 so that a visual inspection of the lock state of the connector assembly can be readily observed from just one direction.
- a three-dimensional structure are based on the target automotive subassembly that the structure is to be installed.
- the number and location of bending portions and the number and location of branches is determined by the target automotive subassembly.
- the work involved in installing the wire-harness is greatly simplified.
- the thin plastic sheets that are wrapped around portions of the wire-harness provide stiffness for holding the three-dimensional structure of the wire-harness, and serve to isolate the wires from the automotive subassembly, and thus prevent pinching and abrasion.
Abstract
Description
- The present disclosure relates generally to connector locking system, for example, a connector that shows a visual indication that the connection is locked and secured during assembly in a tightly spaced automotive subassembly.
- Automobile vehicles contain numerous electrical connectors in which a axaale electrical connector at the end of a wire, pair of wires, or wiring harness is inserted into a female electrical connector mounted inside or in an opening of a panel of an automotive subassembly. Sometimes the electrical connectors are located within spaces that are difficult to reach, may have limited visibility, and may not be accessible once a connection is made. For example, the connector typically goes in the internal connection for a headlamp; the connector connecting the main wire harness of the headlamp to the wire harness from the PCB board. Also, wires are connected to the rear of each of female connector and male connector. The connection might be of a sub system connecting to the main system by the like for example a PCB connecting to the main wire harness inside of a headlamp. In this case one set of wires would be coming from the PCB and the other set from the main wire harness and would get connected by the connector.
FIG. 1 is a diagram showing an example of a tightly spaced enclosure containing a female electrical connector. As shown inFIG. 1 , a femaleelectrical connector 101 may be set back by a distance D from the entrance to theenclosure 103 and a clearance C to an inside surface of theenclosure 103 in the subassembly may be only that necessary to accommodate the femaleelectrical connector 101. For example, the clearance C may be only a few centimeters, in the range of 2 to 5 centimeters depending on the type of automotive subassembly. The femaleelectrical connector 101 may be set back by a distance D that is sufficient to ensure room for mounting, in this case the auxiliary power outlet. Once connected, the wiring, plug is not intended to be accessed. However, such electrical connectors may not be fully secured when connected; resulting in a disconnection after a vehicle has beers shipped or sold. In these cases, the vehicle may have to be returned due to electrical failure of connection of the PCB assembly and main wire harness. One solution to insuring that a male connector is fully inserted into a female connector has been, as shown inFIG. 2 , to include astructure 211 in themale connector 201 and/or thefemale connector 203 that causes a clicking sound to occur when themale connector 201 is fully inserted into thefemale connector 203. However, thestructure 211 that causes the clicking sound does not itself insure a sufficient connection. Also, in the manufacturing environment where the connection may be performed, surrounding noise may be such that a person that is inserting the male connector cannot actually hear the clicking sound, or may mistakenly believe that the clicking sound occurred. - The foregoing “Background” description is for the purpose of generally presenting the context of the disclosure. Work of the inventors, to the extent it is described in this background section, as well as aspects of the description which may not otherwise qualify as prior art at the time of filing, are neither expressly or impliedly admitted as prior art against the present invention.
- A more complete appreciation of the disclosure and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered, in connection with the accompanying drawings, wherein:
-
FIG. 1 is a diagram showing an example of a tight space enclosing a female electrical connector; -
FIG. 2 is a perspective view of a conventional electrical connector assembly; -
FIG. 3 is a perspective view of an electrical connector assembly in which a male electrical connector is being inserted into a female electrical connector according to an exemplary aspect of the disclosure; -
FIG. 4 is a cut-out view of the male electrical connector in an inserted position according to an exemplary aspect of the disclosure; -
FIG. 5 is a perspective view of a male electrical connector in the fully inserted position according to an exemplary aspect of the disclosure; and -
FIG. 6 is a diagram showing an example of a tight space enclosing a female electrical connector and the position of a visible locking tab. - Referring now to the drawings, wherein like reference numerals designate identical or corresponding parts throughout several views, the following description relates to a lockable electrical connector assembly, and in particular a male electrical connector having a spring-action lock that locks the male electrical connector by way of a single locking tab that, pops up to project through a slot in a wall of the female electrical connector when the male electrical connector is fully inserted into the female electrical connector. The color of the locking tab is distinguished from the color of the female electrical connector such that a secure connection is easily observed. This lockable connector is particularly suited for connectors that are mounted on automotive assemblies in a tightly spaced enclosure. The lockable connector is particularly suited for connections that are not intended to be later disconnected.
-
FIG. 3 is a perspective view of an electrical connector assembly according to an exemplary aspect of the disclosure. The electrical connector assembly is shown in a state in which a male electrical connector is being inserted into a female electrical connector in an insertion direction R. The maleelectrical connector 303 is to be plugged into a femaleelectrical connector 301, which is mounted, for example, via amounting slot 305 to an enclosure in an automotive subassembly housing. The femaleelectrical connector 301 includes anopening slot 307 in an upper wall. The electrical connection made by the connector assembly may be, for example, a connection for a 12V auxiliary power outlet. In some embodiments, the power outlet may be a port, such as a USB port, that may be used for charging electric appliances, and/or connection to internal wiring of a vehicle. - The male and female components of the electrical connector assembly may each be a molded plastic. Common plastic materials for electrical connectors include thermoplastic polyester resins, polyamide, polyethylene and polypropylene. It is preferable that the plastic material has stiffness and color retention. The male and female components of the electrical connector assembly are preferably made of visually distinct colors. In some embodiments the female
electrical connector 301 may be made of a dark color, while the male electrical connector may be made of a bright color. For example, the femaleelectrical connector 301 may be made of a black colored plastic, while the maleelectrical connector 303 may be made of a white colored plastic. Other dark colors are possible for the female electrical connector, such as a dark blue, dark green, dark purple, or dark red. Bright colors that may be used as the color of the male electrical connector include, but are not limited to, bright yellow, bright orange, bright green. In some embodiments, the male electrical connector is made of a metallic color or may include a color infused with a phosphor. -
FIG. 4 is a cut-out view of the electrical connector assembly in an inserted position according to an exemplary aspect of the disclosure. The maleelectrical connector 303 includes a spring-action portion 401. The spring-action portion 401 performs a spring action such that alocking tab 403 pops up when a full connection is made. It is preferred that the length L of the spring-action portion 401 be of a length that the spring action force is sufficient for thelocking tab 403 to pop into theslot 307. When a full connection is made, thelocking tab 403 projects by a height H above the outer surface of the femaleelectrical connector 301. In one embodiment, thelocking tab 403 has a flat surface on the side that is opposite to the insertion direction R and has a curved shape on the side facing the insertion direction R. In another embodiment, thelocking tab 403 may include a hook shape on the side that is opposite to the insertion direction R in order to partially overlap the upper surface of the female electrical connector and ensure that the lock action by thelocking tab 403 cannot be undone. In some embodiments, the Length L is: 5.5-8 mm, and Height H: 0.1-0.3 mm. -
FIG. 5 is a perspective view of an electrical connector assembly in the fully inserted position according to an exemplary aspect of the disclosure. As shown inFIG. 5 , thelocking tab 403 is clearly visible when the electrical connector assembly is fully connected. In one embodiment, the height H of thelocking tab 403 above the outer surface of the wall of the female electrical connector is at least 0.1 mm to ensure visibility when viewed along the insertion direction axis R. Also, the visibility of thelocking tab 403 ensures that the connection is secured. -
FIG. 6 is a diagram showing an example of an enclosure having a tight space enclosing a female electrical connector and the position of a visible locking tab. As can be seen inFIG. 6 , the locking tab 403 (shown without the rest of the male electrical connector for purposes of simplicity) projects above the upper surface of the femaleelectrical connector 301 by a height H that is sufficient to be visible in theenclosure 103, where the femaleelectrical connector 301 has a clearance C and is set back by a distance D within theenclosure 103. - Although the example in
FIG. 6 shows the femaleelectrical connector 201 mounted at a lower surface of a lower wall of the connector and the slot through which thelocking tab 303 is projected is at an upper wall, the disclosure is not so limited. For example, the femaleelectrical connector 301 may be mounted at an upper surface of an upper wall of the connector such that the slot is located at a lower wall of the connector. Alternatively, the femaleelectrical connector 301 may be mounted at a side surface. In one embodiment, the orientation of the femaleelectrical connector 301 is the inverse from that shown inFIG. 5 such that the lower surface havingmounting slot 305 is mounted to an upper inner surface of anenclosure 103. - It is preferred that the male
electrical connector 303 include only onelocking tab 403 so that a visual inspection of the lock state of the connector assembly can be readily observed from just one direction. - Features of a three-dimensional structure are based on the target automotive subassembly that the structure is to be installed. In particular, the number and location of bending portions and the number and location of branches is determined by the target automotive subassembly. By assembling the three-dimensional structure of a wire-harness in advance, the work involved in installing the wire-harness is greatly simplified. Also, the thin plastic sheets that are wrapped around portions of the wire-harness provide stiffness for holding the three-dimensional structure of the wire-harness, and serve to isolate the wires from the automotive subassembly, and thus prevent pinching and abrasion.
- Numerous modifications and variations are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.
- Thus, the foregoing discussion discloses and describes merely exemplary embodiments of the present invention. As will be understood by those skilled in the art, the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Accordingly, the disclosure of the present invention is intended to be illustrative, but not limiting of the scope of the invention, as well as other claims. The disclosure, including any readily discernible variants of the teachings herein, defines, in part, the scope of the foregoing claim terminology such that no inventive subject matter is dedicated to the public.
Claims (10)
Priority Applications (1)
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US16/022,047 US10530096B1 (en) | 2018-06-28 | 2018-06-28 | Visual connector locking system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US16/022,047 US10530096B1 (en) | 2018-06-28 | 2018-06-28 | Visual connector locking system |
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US20200006896A1 true US20200006896A1 (en) | 2020-01-02 |
US10530096B1 US10530096B1 (en) | 2020-01-07 |
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US16/022,047 Expired - Fee Related US10530096B1 (en) | 2018-06-28 | 2018-06-28 | Visual connector locking system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113937565A (en) * | 2021-11-24 | 2022-01-14 | 无锡新迪新能源车业有限公司 | New energy electric vehicle capable of preventing charging head from falling |
US11552290B2 (en) | 2018-07-27 | 2023-01-10 | Form Energy, Inc. | Negative electrodes for electrochemical cells |
US11611115B2 (en) | 2017-12-29 | 2023-03-21 | Form Energy, Inc. | Long life sealed alkaline secondary batteries |
US11664547B2 (en) | 2016-07-22 | 2023-05-30 | Form Energy, Inc. | Moisture and carbon dioxide management system in electrochemical cells |
US11973254B2 (en) | 2019-06-28 | 2024-04-30 | Form Energy, Inc. | Aqueous polysulfide-based electrochemical cell |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR980006638A (en) | 1996-06-08 | 1998-03-30 | 김영귀 | Fastening assembly of the vehicle connector |
KR19980078628A (en) | 1997-04-29 | 1998-11-16 | 김영귀 | Car Connector Fixing Clip |
US6616468B2 (en) | 2000-04-17 | 2003-09-09 | Fujikura Ltd. | Connector and electric connection structure |
US6945830B2 (en) | 2003-10-20 | 2005-09-20 | Tyco Electronics Corporation | Connector system having opposing biasing beam and lance |
US20150155664A1 (en) | 2013-11-29 | 2015-06-04 | Cheng Uei Precision Industry Co., Ltd. | Electrical connector assembly |
US10014631B1 (en) * | 2017-10-12 | 2018-07-03 | Lawrence R Chambly | Secure electrical conductor connector |
-
2018
- 2018-06-28 US US16/022,047 patent/US10530096B1/en not_active Expired - Fee Related
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11664547B2 (en) | 2016-07-22 | 2023-05-30 | Form Energy, Inc. | Moisture and carbon dioxide management system in electrochemical cells |
US11611115B2 (en) | 2017-12-29 | 2023-03-21 | Form Energy, Inc. | Long life sealed alkaline secondary batteries |
US11552290B2 (en) | 2018-07-27 | 2023-01-10 | Form Energy, Inc. | Negative electrodes for electrochemical cells |
US11973254B2 (en) | 2019-06-28 | 2024-04-30 | Form Energy, Inc. | Aqueous polysulfide-based electrochemical cell |
CN113937565A (en) * | 2021-11-24 | 2022-01-14 | 无锡新迪新能源车业有限公司 | New energy electric vehicle capable of preventing charging head from falling |
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US10530096B1 (en) | 2020-01-07 |
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