CN112636421B - Leakage-proof electromagnetic suction positioning charging cabinet - Google Patents
Leakage-proof electromagnetic suction positioning charging cabinet Download PDFInfo
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- CN112636421B CN112636421B CN202011463161.6A CN202011463161A CN112636421B CN 112636421 B CN112636421 B CN 112636421B CN 202011463161 A CN202011463161 A CN 202011463161A CN 112636421 B CN112636421 B CN 112636421B
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- charging
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- mounting
- leakage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- 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
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/633—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only
- H01R13/635—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for disengagement only by mechanical pressure, e.g. spring force
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0031—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits
- H02J7/0032—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using battery or load disconnect circuits disconnection of loads if battery is not under charge, e.g. in vehicle if engine is not running
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0045—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction concerning the insertion or the connection of the batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a leakage-proof electromagnetic absorption positioning charging cabinet, wherein an electric coupling column penetrates through a mounting through hole on a charging station, a charging connector at one end of the electric coupling column is connected with a mounting backboard through an elastic resetting piece, a first sub-contact is arranged on the charging connector, a second sub-contact is arranged at one end of the electric coupling column far away from the charging connector, a first female contact matched with the first sub-contact is arranged on a connecting wire connected with an electromagnet on the charging station, and a second female contact matched with the second sub-contact is arranged on a connecting piece at the rear side of the mounting backboard; through setting up electric connection post, the battery is placed on the charging potential, through promoting the joint that charges for electric connection post is through second son contact and the switching on of second female contact, thereby realizes battery charging circuit intercommunication on the one hand, realizes on the other hand that the electro-magnet is circular telegram and then carries out magnetic adsorption to the battery, and after the completion of charging, the battery removes, and the joint that charges resets under the effect of elasticity reset piece and cuts off the power supply, thereby realizes the circuit outage when not charging, avoids taking place the electric leakage.
Description
Technical Field
The invention relates to the technical field of charging cabinets, in particular to a leakage-proof electromagnetic suction positioning charging cabinet.
Background
Currently, with the widespread use of electricity, photovoltaic system devices for the public field are widely used. For example, public charging devices and battery-changing devices are often equipped with battery systems, which on the one hand charge the battery-changing cells and on the other hand also serve for storing the devices, avoiding being damaged by personnel in public places.
The existing rechargeable battery cabinet is internally provided with a charging level, and when a battery for replacing the battery is placed on the charging level, the battery is required to be connected with a power interface for charging independently. When the battery is taken out and put on other charging sites, poor contact of the battery during charging may be caused. When the charging level is not provided with a battery for replacing electricity, the power interface is exposed, and the battery is not used for a long time, so that the interface is corroded, and electric leakage is seriously caused.
Disclosure of Invention
In order to solve the technical problems in the background technology, the invention provides a leakage-proof electromagnetic absorption positioning charging cabinet.
The invention provides a leakage-proof electromagnetic absorption positioning charging cabinet, which comprises: the cabinet body is internally provided with a mounting backboard, a connecting piece, an electric connecting column and an electromagnet;
the charging device comprises a mounting backboard, an electric connection column, a charging connector and an elastic reset piece, wherein the mounting backboard is provided with a charging hole, the charging hole is provided with an installation through hole, the electric connection column penetrates through the installation through hole, one end of the electric connection column is provided with the charging connector, one side of the charging connector, which is close to the mounting backboard, is provided with the first sub-contact, the charging connector is provided with the elastic reset piece, one end, which is far away from the charging connector, of the elastic reset piece is connected with the mounting backboard, and one end, which is far away from the charging connector, of the electric connection column is provided with the second sub-contact;
the electromagnet is arranged on one side of the mounting backboard, close to the charging connector, and is positioned on one side of the mounting through hole, a grounding wire extending towards the direction of the electric connection column is arranged on the electromagnet, and one end, far away from the electromagnet, of the grounding wire is provided with a first female contact matched with the first sub contact;
the connecting piece is located one side of the mounting backboard close to the second sub-contact, and a second mother contact matched with the second sub-contact is arranged on the connecting piece.
Preferably, a plurality of charging positions are arranged on the mounting backboard, and each charging position is provided with an electric connection column and an electromagnet.
Preferably, each charging station is provided with a horizontally extending support plate, which is located below the charging connector.
Preferably, the motor is also included;
the installation backplate is last to be equipped with the pivot that the level of perpendicular to installation backplate set up, and the connecting piece passes through the pivot rotatable installs on the installation backplate, a plurality of the electric connection post in position of charging is centers on the pivot distributes along the circumference, and driving motor is connected with the connecting piece and is used for driving the connecting piece and rotates.
Preferably, the connecting piece adopts a turntable structure, and one side of the turntable, which faces the mounting backboard, is provided with a plurality of second female contacts distributed along the circumference.
Preferably, the mounting through hole has a stepped hole structure, the first sub-contact is located at the side wall of the charging connector, and the first main contact is located at the inner wall of the stepped hole.
Preferably, the inner radial direction of the step hole is gradually reduced in a direction approaching the second sub-contact, and the outer radial direction of the charging connector is gradually reduced in a direction approaching the second sub-contact.
Preferably, a cushion is provided between the second female contact and the connector.
According to the leakage-proof electromagnetic absorption positioning charging cabinet, a charging potential is arranged on a mounting backboard, an electric coupling column penetrates through a mounting through hole on the charging potential, a charging connector at one end of the electric coupling column is connected with the mounting backboard through an elastic resetting piece, a first subcontact is arranged on the charging connector, a second subcontact is arranged at one end of the electric coupling column, which is far away from the charging connector, a first female contact matched with the first subcontact is arranged on a connecting wire connected with an electromagnet on the charging potential, and a second female contact matched with the second subcontact is arranged on a connecting piece at the rear side of the mounting backboard; through setting up electric connection post, the battery is placed on the charging potential, through promoting the joint that charges for electric connection post is through second son contact and the switching on of second female contact, thereby realizes battery charging circuit intercommunication on the one hand, realizes on the other hand that the electro-magnet is circular telegram and then carries out magnetic adsorption to the battery, and after the completion of charging, the battery removes, and the joint that charges resets under the effect of elasticity reset piece and cuts off the power supply, thereby realizes the circuit outage when not charging, avoids taking place the electric leakage.
Drawings
Fig. 1 is a schematic diagram of a front view structure of a leakage-proof electromagnetic attraction positioning charging cabinet provided by the invention.
Fig. 2 is a schematic diagram illustrating a side view of a leakage-proof electromagnetic attraction positioning charging cabinet according to the present invention.
Fig. 3 is a schematic diagram of the matching of the electric coupling columns of the anti-leakage electromagnetic attraction positioning charging cabinet.
Fig. 4 is a schematic rear view of a turntable and an installation backboard of a leakage-proof electromagnetic attraction positioning charging cabinet.
Detailed Description
As shown in fig. 1 and 2, fig. 1 is a schematic structural diagram of a leakage-proof electromagnetic attraction positioning charging cabinet according to the present invention, fig. 2 is a schematic side view matching diagram of a leakage-proof electromagnetic attraction positioning charging cabinet according to the present invention, fig. 3 is a schematic electric coupling column matching diagram of a leakage-proof electromagnetic attraction positioning charging cabinet according to the present invention, and fig. 4 is a schematic rear view of a turntable and an installation backboard of a leakage-proof electromagnetic attraction positioning charging cabinet according to the present invention.
Referring to fig. 1 to 3, the present invention provides a leakage-proof electromagnetic attraction positioning charging cabinet, comprising: the cabinet body 10, the cabinet body 10 is internally provided with a mounting backboard 1, a connecting piece, an electric connecting column 2 and an electromagnet 3;
the charging device comprises a mounting backboard 1, an electric coupling column 2, a charging connector 4, a first sub-contact 51, an elastic reset piece 11, a second sub-contact 52 and a first connecting piece, wherein the charging potential is arranged on the mounting backboard 1, the charging potential is provided with a mounting through hole, the electric coupling column 2 penetrates through the mounting through hole, one end of the electric coupling column 2 is provided with the charging connector 4, one side of the charging connector 4 close to the mounting backboard 1 is provided with the first sub-contact 51, one end of the elastic reset piece 11, far away from the charging connector 4, is connected with the mounting backboard 1, and one end of the electric coupling column 2, far away from the charging connector 4, is provided with the second sub-contact 52;
the electromagnet 3 is arranged on one side of the mounting backboard 1 close to the charging connector 4 and positioned on one side of the mounting through hole, a connecting wire extending towards the direction of the electric coupling column 2 is arranged on the electromagnet 3, and one end of the connecting wire, which is far away from the electromagnet 3, is provided with a first female contact 61 matched with the first sub-contact 51;
the connecting piece is positioned on one side of the mounting backboard 1 close to the second sub-contact 52, and a second female contact 62 matched with the second sub-contact 52 is arranged on the connecting piece.
In the specific working process of the anti-leakage electromagnetic suction positioning charging cabinet, when a battery is not placed on a battery charging level, the electric coupling column is in a disconnection state under the action of the elastic reset piece 11, and the first sub-contact is disconnected with the first main contact, so that the charging connector is in a power-off state, and meanwhile, the grounding wire of the electromagnet is also in the power-off state; the method comprises the steps that a battery to be charged is mounted on a battery charging level, a charging port on the battery is matched with a charging connector, the charging connector is pushed to move towards a connecting piece, a second sub-contact is enabled to contact with a second main contact, the charging connector is enabled to be electrified through an electric connecting column, meanwhile, the battery charging port is electrically connected and charged through the charging connector, a first sub-contact on the charging connector is enabled to contact with the second main contact on a mounting backboard, an electromagnet is enabled to be electrified, and adsorption positioning is conducted on the battery; when the battery is taken down from the charging position after charging, the electric connection column moves away from the connecting piece again under the action of the elastic reset piece 11, so that the second sub-contact and the second main contact are disconnected again, and the charging connector and the electromagnet are also powered off again.
In the embodiment, the provided anti-leakage electromagnetic absorption positioning charging cabinet is provided with a charging potential on a mounting backboard, an electric coupling column penetrates through a mounting through hole on the charging potential, a charging connector at one end of the electric coupling column is connected with the mounting backboard through an elastic resetting piece 11, a first subcontact is arranged on the charging connector, a second subcontact is arranged at one end of the electric coupling column far away from the charging connector, a first female contact matched with the first subcontact is arranged on a connecting wire connected with an electromagnet on the charging potential, and a second female contact matched with the second subcontact is arranged on a connecting piece at the rear side of the mounting backboard; through setting up electric connection post, the battery is placed on the charging potential, through promoting the joint that charges for electric connection post is through second son contact and the switching on of second female contact, thereby realizes battery charging circuit intercommunication on the one hand, realizes on the other hand that the electro-magnet is circular telegram and then carries out magnetic adsorption to the battery, and after the completion of charging, the battery removes, and the joint that charges resets under the effect of elasticity reset piece 11 and cuts off the power supply, thereby realizes the circuit outage when not charging, avoids taking place the electric leakage.
In a specific embodiment, a plurality of charging positions are arranged on the mounting backboard 1, and each charging position is provided with an electric connection post 2 and an electromagnet 3.
Further, each charging station is provided with a horizontally extending support plate 7, and the support plates 7 are positioned below the charging connector 4, so that the batteries can be placed on the support plates during charging.
In order to ensure the locking of the battery position during charging, in other specific embodiments, a limiting protrusion can be arranged on the supporting plate, and the limiting protrusion limits the bottom of the battery.
In the specific design mode of the connecting piece, the connecting piece also comprises a driving motor 8;
the installation backboard 1 is provided with a rotating shaft which is perpendicular to the installation backboard 1 and is horizontally arranged, the connecting piece is rotatably arranged on the installation backboard 1 through the rotating shaft, a plurality of electric coupling columns 2 of the charging positions are circumferentially distributed around the rotating shaft, and the driving motor 8 is connected with the connecting piece and used for driving the connecting piece to rotate; the connecting piece is driven to rotate by the driving motor according to the charging condition of each charging bit, so that one second main contact is switched among a plurality of second sub contacts.
Referring to fig. 4, in another embodiment, the connection member adopts a turntable 9 structure, and a plurality of second female contacts 62 distributed along the circumference may be disposed on the side of the turntable 9 facing the mounting backboard 1; when the battery is stored on the charging level, a plurality of stations are powered on and powered off simultaneously through rotation of the turntable.
In other specific embodiments, the mounting through hole has a stepped hole structure, the first sub-contact 51 is located on the side wall of the charging connector 4, and the first main contact 61 is located on the inner wall of the stepped hole; when the electric connection post is in an electrified state, the first sub-contact on the charging connector moves into the step hole along with the electric connection post so as to be in contact communication with the first main contact.
In a further specific embodiment, the inner radial direction of the stepped hole is gradually reduced in a direction approaching the second sub-contact 52, and the outer radial direction of the charging connector 4 is gradually reduced in a direction approaching the second sub-contact 52; when the charging connector moves along with the electric connection column to the direction of the connecting piece, the inner wall of the step hole is matched with the inclined surface of the outer wall of the charging connector, so that the effect of limiting the electric connection column is achieved, and on the other hand, the contact reliability of the first sub-contact and the first main contact is guaranteed.
Further, a buffer pad 12 is provided between the second female contact 62 and the connector to ensure the mating reliability of the second female contact and the second male contact.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a location cabinet that charges is inhaled to leak protection electromagnetism which characterized in that includes: the cabinet comprises a cabinet body (10), wherein a mounting backboard (1), a connecting piece, an electric connecting column (2) and an electromagnet (3) are arranged in the cabinet body (10);
the charging device comprises a mounting backboard (1), wherein a charging potential is arranged on the mounting backboard (1), a mounting through hole is formed in the charging potential, an electric connection column (2) penetrates through the mounting through hole, a charging connector (4) is arranged at one end of the electric connection column (2), a first subcontact (51) is arranged on one side, close to the mounting backboard (1), of the charging connector (4), an elastic resetting piece (11) is arranged on the charging connector (4), one end, far away from the charging connector (4), of the elastic resetting piece (11) is connected with the mounting backboard (1), and a second subcontact (52) is arranged at one end, far away from the charging connector (4), of the electric connection column (2);
the electromagnet (3) is arranged on one side of the mounting backboard (1) close to the charging connector (4) and is positioned on one side of the mounting through hole, a connecting wire extending towards the direction of the electric coupling column (2) is arranged on the electromagnet (3), and one end of the connecting wire, far away from the electromagnet (3), is provided with a first female contact (61) matched with the first sub contact (51);
the connecting piece is positioned on one side of the mounting backboard (1) close to the second sub-contact (52), and a second mother contact (62) matched with the second sub-contact (52) is arranged on the connecting piece;
the mounting through hole is provided with a step hole structure, the first sub-contact (51) is positioned on the side wall of the charging connector (4), and the first main contact (61) is positioned on the inner wall of the step hole;
the inner radial direction of the step hole is gradually reduced in the direction approaching the second sub-contact (52), and the outer radial direction of the charging connector (4) is gradually reduced in the direction approaching the second sub-contact (52).
2. The leakage-proof electromagnetic attraction positioning charging cabinet according to claim 1, wherein a plurality of charging positions are arranged on the mounting backboard (1), and each charging position is provided with an electric connection column (2) and an electromagnet (3).
3. The leakage-proof electromagnetic attraction positioning charging cabinet according to claim 2, wherein each charging station is provided with a horizontally extending supporting plate (7), and the supporting plates (7) are positioned below the charging connector (4).
4. The leakage-proof electromagnetic attraction positioning charging cabinet according to claim 2, further comprising a drive motor (8);
be equipped with the pivot that perpendicular to installation backplate (1) level set up on installation backplate (1), the connecting piece passes through the pivot rotatable install on installation backplate (1), a plurality of electric connection post (2) at position of charging are around the pivot distributes along the circumference, and driving motor (8) are connected with the connecting piece and are used for driving the connecting piece and rotate.
5. The leakage-proof electromagnetic attraction positioning charging cabinet according to claim 4, wherein the connecting piece adopts a turntable (9) structure, and a plurality of second female contacts (62) distributed along the circumference are arranged on one side of the turntable (9) facing the mounting backboard (1).
6. The leakage-proof electromagnetic attraction positioning charging cabinet of claim 1, wherein a cushion pad (12) is arranged between the second female contact (62) and the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011463161.6A CN112636421B (en) | 2020-12-14 | 2020-12-14 | Leakage-proof electromagnetic suction positioning charging cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011463161.6A CN112636421B (en) | 2020-12-14 | 2020-12-14 | Leakage-proof electromagnetic suction positioning charging cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112636421A CN112636421A (en) | 2021-04-09 |
| CN112636421B true CN112636421B (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011463161.6A Active CN112636421B (en) | 2020-12-14 | 2020-12-14 | Leakage-proof electromagnetic suction positioning charging cabinet |
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| Country | Link |
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| CN (1) | CN112636421B (en) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000030810A (en) * | 1998-07-07 | 2000-01-28 | Seiko Instruments Inc | Power source connecting device and electronic apparatus provided therewith |
| US20160093975A1 (en) * | 2014-09-30 | 2016-03-31 | Apple Inc. | Magnetic pins |
| CN205531758U (en) * | 2016-04-01 | 2016-08-31 | 周向阳 | Electron donating lock battery charges and automatic device of supplying power |
| CN107359467A (en) * | 2017-07-28 | 2017-11-17 | 宝鸡市天瑞有色金属材料有限责任公司 | With the automatic family expenses charging pile for removing charging plug and power-off protection function |
| CN107599855B (en) * | 2017-08-07 | 2021-05-07 | 台州市吉吉知识产权运营有限公司 | Self-adaptive charging device and AGV navigation vehicle |
| CN109390994B (en) * | 2017-08-11 | 2023-08-11 | 手持产品公司 | Soft power start solution based on POGO connector |
| TWM564272U (en) * | 2017-12-20 | 2018-07-21 | 麗臺科技股份有限公司 | Charging plug and charging structure |
| JP7014081B2 (en) * | 2018-07-30 | 2022-02-01 | トヨタ自動車株式会社 | Charger |
| CN109449662B (en) * | 2018-10-31 | 2020-04-21 | 王逸帆 | New energy automobile safe type energy-conserving charging plug and socket |
| CN209592493U (en) * | 2019-02-22 | 2019-11-05 | 宜宾明德通讯技术有限公司 | A kind of handset charging holder |
| CN209402556U (en) * | 2019-02-22 | 2019-09-17 | 宜宾明德通讯技术有限公司 | A kind of dedicated cell phone rear cover of the elderly |
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2020
- 2020-12-14 CN CN202011463161.6A patent/CN112636421B/en active Active
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Effective date of registration: 20230504 Address after: Building 601-1, Building 21, Lianchuang Technology Park Phase 2, No. 21 Bulan Road, Xialilang Community, Nanwan Street, Longgang District, Shenzhen City, Guangdong Province, 518100 Applicant after: Shenzhen Shiwei Electronic Technology Co.,Ltd. Address before: Room 1416, 14th floor, block a, Wanda office building, bengshan District, 233000, Anhui Province Applicant before: Bengbu HNA Technology Co.,Ltd. |
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