CN112086311B - Full-charge automatic power-off device of lithium battery - Google Patents
Full-charge automatic power-off device of lithium battery Download PDFInfo
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- CN112086311B CN112086311B CN202010845786.2A CN202010845786A CN112086311B CN 112086311 B CN112086311 B CN 112086311B CN 202010845786 A CN202010845786 A CN 202010845786A CN 112086311 B CN112086311 B CN 112086311B
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- fixedly connected
- conductive
- rotating device
- groove
- soft iron
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
- H01H36/0073—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding actuated by relative movement between two magnets
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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
- H01R13/66—Structural association with built-in electrical component
- H01R13/70—Structural association with built-in electrical component with built-in switch
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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
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to the technical field of lithium batteries, and discloses a full-charge automatic power-off device of a lithium battery, which comprises a device shell, wherein electromagnetic soft iron is arranged inside the device shell, a conductive wire is arranged on the surface of the electromagnetic soft iron, one end of the conductive wire is fixedly connected with a wire interface, the surface of the electromagnetic soft iron is fixedly connected with a rotating device, the surface of the rotating device is fixedly connected with a pointer, one end of the pointer is fixedly connected with a conductive sliding block, the outer side of the rotating device is provided with a magnet fixing layer, a permanent magnet is fixedly connected inside the magnet fixing layer, the surface of the magnet fixing layer is fixedly connected with a sliding groove, and a metal conductive groove is fixedly connected inside the sliding groove. This full charge automatic cutout device of lithium cell uses through the cooperation of electromagnetism soft iron, conductor wire, wire interface, rotary device, pointer and metal conducting groove to the effect of automatic cutout when having reached the lithium cell full charge.
Description
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a full-charge automatic power-off device of a lithium battery.
Background
The lithium battery is an ideal energy carrier developed in the twenty-first century, has multiple advantages, but when the lithium battery is charged, the lithium battery is often overcharged due to unsupervised, and the overcharge of the lithium battery can cause the conditions of rise of internal pressure of the battery, deformation of the battery, leakage and the like to reduce the service life of the lithium battery, even can explode, and threatens the life safety of people.
Patent CN111146846A is a protection device for preventing overcharge of lithium battery, which can prevent overcharge of lithium battery, but its structure is too complex, which is not good for production and cost reduction.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a full-charge automatic power-off device of a lithium battery, which has the advantages of simple structure, convenience in production and cost reduction, and automatic power-off and overcharge prevention when the lithium battery is fully charged, and solves the problems that the lithium battery is overcharged frequently due to unsupervised supervision when the lithium battery is charged, the service life of the lithium battery is shortened due to the fact that the overcharge of the lithium battery causes the conditions of rise of the internal pressure of the battery, deformation of the battery, liquid leakage and the like, even the explosion is possible, and the life safety of people is threatened.
(II) technical scheme
In order to realize the purposes of simple structure, convenient production, cost reduction and automatic power-off and overcharge prevention when the lithium battery is fully charged, the invention provides the following technical scheme: a full-charge automatic power-off device of a lithium battery comprises a device shell, wherein electromagnetic soft iron is arranged inside the device shell, the surface of the electromagnetic soft iron is provided with a conductive wire, one end of the conductive wire is fixedly connected with a conductive wire interface, the surface of the electromagnetic soft iron is fixedly connected with a rotating device, the surface of the rotating device is fixedly connected with a pointer, one end of the pointer is fixedly connected with a conductive sliding block, the outer side of the rotating device is provided with a magnet fixing layer, the interior of the magnet fixing layer is fixedly connected with a permanent magnet, the surface of the magnet fixing layer is fixedly connected with a chute, the inside of the sliding chute is fixedly connected with a metal conductive groove, the left end of the device shell is fixedly connected with a connector, the left end fixedly connected with contact piece of connector, the left side of device shell is provided with the lithium cell, the right-hand member of lithium cell is provided with the mouth that charges.
Preferably, the number of the wire interfaces is two, and the two wire interfaces are respectively and fixedly connected with two ends of the conducting wire, wherein one wire interface is electrically connected with the positive electrode of the external power supply, and the other wire interface is electrically connected with the conducting slide block.
Preferably, the circle center of the rotating device is positioned in the rotating connection of the device shell, and the center of the electromagnetic soft iron is superposed with the circle center of the rotating device.
Preferably, the conductive sliding block is connected with the sliding groove in a sliding manner, the metal conductive groove is a section of the sliding groove, and the groove surface of the metal conductive groove and the groove surface of the sliding groove are on the same plane.
Preferably, the magnet fixing layer is fixedly connected with the device shell, a square hollow is arranged inside the magnet fixing layer, and the side length of the square hollow is larger than the diameter of the rotating device.
Preferably, the two permanent magnets are symmetrical about the center of the magnet fixing layer, and the opposite magnetic poles are opposite magnetic poles.
Preferably, the connector is internally provided with a positive electrode and a negative electrode, the positive electrode is electrically connected with the metal conductive groove, the negative electrode is electrically connected with the negative electrode of the external power supply, and the contact piece is electrically connected with the positive electrode and the negative electrode of the connector respectively; the contact piece is matched with the charging port.
(III) advantageous effects
Compared with the prior art, the invention provides a full-charge automatic power-off device of a lithium battery, which has the following beneficial effects:
1. this full charge automatic cutout device of lithium cell uses through the cooperation of electromagnetism soft iron, conductor wire, wire interface, rotary device, pointer and metal conducting groove to the effect of automatic cutout when having reached the lithium cell full charge.
2. This full charge automatic cutout device of lithium cell, simple structure does benefit to production and saves the cost, and when the lithium cell was full of the electricity, automatic outage let the lithium cell stop charging, prevented that the lithium cell from overcharging, has prolonged the life-span of lithium cell, has prevented that the lithium cell from exploding because of overcharging to cause the influence to people's life safety
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram illustrating the lithium battery of FIG. 1 according to the present invention during charging;
fig. 3 is a schematic diagram of the lithium battery of fig. 1 according to the present invention when fully charged.
In the figure: 1. a device housing; 2. electromagnetic soft iron; 3. a conductive wire; 4. a wire interface; 5. a rotating device; 6. a pointer; 7. a conductive slider; 8. a magnet fixing layer; 9. a permanent magnet; 10. a chute; 11. a metal conductive slot; 12. a connector; 13. a contact piece; 14. a lithium battery; 15. a charging port.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, a full charge automatic power-off device for a lithium battery includes a device housing 1, and is characterized in that: the device comprises a device shell 1, wherein an electromagnetic soft iron 2 is arranged inside the device shell 1, a conductive wire 3 is arranged on the surface of the electromagnetic soft iron 2, a conductive wire interface 4 is fixedly connected to one end of the conductive wire 3, a rotating device 5 is fixedly connected to the surface of the electromagnetic soft iron 2, a pointer 6 is fixedly connected to the surface of the rotating device 5, a conductive slider 7 is fixedly connected to one end of the pointer 6, a magnet fixing layer 8 is arranged outside the rotating device 5, a permanent magnet 9 is fixedly connected inside the magnet fixing layer 8, a sliding groove 10 is fixedly connected to the surface of the magnet fixing layer 8, a metal conductive groove 11 is fixedly connected inside the sliding groove 10, a connector 12 is fixedly connected to the left end of the device shell 1, a contact piece 13 is fixedly connected to the left end of the connector 12, a lithium battery 14 is arranged on the left side of the device shell 1, and a charging port 15 is arranged at the right end of the lithium battery 14;
two lead interfaces 4 are respectively and fixedly connected with two ends of the conductive wire 3, one lead interface 4 is electrically connected with the anode of an external power supply, and the other lead interface 4 is electrically connected with the conductive sliding block 7;
the circle center of the rotating device 5 is positioned in the rotating connection of the device shell 1, and the center of the electromagnetic soft iron 2 is superposed with the circle center of the rotating device 5;
the conductive sliding block 7 is connected with the sliding chute 10 in a sliding manner, the metal conductive groove 11 is a section of the sliding chute 10, and the groove surface of the metal conductive groove and the groove surface of the sliding chute 10 are on the same plane;
the magnet fixing layer 8 is fixedly connected with the device shell 1, a square hollow is arranged inside the magnet fixing layer 8, and the side length of the square hollow is larger than the diameter of the rotating device 5;
two permanent magnets 9 are arranged, are symmetrical about the circle center of the magnet fixing layer 8, and have opposite magnetic poles;
the connector 12 is internally provided with a positive electrode and a negative electrode, the positive electrode is electrically connected with the metal conductive groove 11, the negative electrode is electrically connected with the negative electrode of an external power supply, and the contact piece 13 is electrically connected with the positive electrode and the negative electrode of the connector 12 respectively; the contact piece 13 is fitted to the charging port 15.
The operation process and principle of the fully charged automatic power-off device of the lithium battery are as claimed in the claims and fig. 1 in the initial state. When the lithium battery 14 with insufficient electric quantity is charged, the conducting wire 3 is electrified because the conducting wire interface 4 at one end of the conducting wire 3 is electrically connected with the anode of an external power supply, according to the magnetic effect of current, the conducting wire 3 forms a magnetic field, the electromagnetic soft iron 2 surrounded by the conducting wire 3 is magnetized to form a stronger magnetic field, and the stronger magnetic field interacts with the magnetic field between the two permanent magnets 9 to generate force, because the electromagnetic soft iron 2 is fixedly connected with the rotating device 5, and the rotating device 5 can rotate around the center of a circle, so that the electromagnetic soft iron 2, the conducting wire 3 on the electromagnetic soft iron and the rotating device 5 rotate at the moment.
The rotating device 5 rotates to drive the pointer 6 fixedly connected with the rotating device to rotate, the pointer 6 drives the conductive sliding block 7 on the pointer to rotate, because the electric quantity of the lithium battery 14 is insufficient at the moment, the current during charging is the largest, the current passing through the conductive wire 3 is the largest, the principle is the same as that of the above principle, the magnetic field generated by the conductive wire 3 and the electromagnetic soft iron 2 is the largest, the acting force of the magnetic field between the two permanent magnets 9 is the largest, and similarly, the deflection angle of the rotating device 5 is the largest, and the conductive sliding block 7 on the pointer 6 is in contact with the rightmost end of the metal conductive groove 11 at the moment, as shown in figure 2.
The conductive slider 7 is electrically connected with the wire interface 4 at the other end of the conductive wire 3, the metal conductive groove 11 is electrically connected with the positive electrode of the connector 12, the contact piece 13 on the connector 12 is electrically connected with the positive electrode and the negative electrode on the connector 12, and the contact piece 13 is matched with the charging port 15 of the lithium battery 14, so that the lithium battery 14 is charged at the moment.
Because when the electricity of lithium cell 14 is close to fully filling up, charging current can reduce gradually, when little to certain degree, lithium cell 14 is full of electricity, and this in-process, the electric quantity in the electric lead 3 reduces with the same reason, and with the same reason, rotary device 5's deflection angle slowly reduces, just fully fills up the electricity when lithium cell 14, when the electric current just reduces to certain degree promptly, rotary device 5's deflection angle also just reduces to and makes electrically conductive slider 7 on the pointer 6 not contact with metal conducting groove 11, and metal conducting groove 11 cuts off the power supply this moment, and lithium cell 14 stops charging with the same reason.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. The utility model provides a full charge auto-power-off device of lithium cell, includes device shell (1), its characterized in that: the device is characterized in that an electromagnetic soft iron (2) is arranged inside a shell (1), a conductive wire (3) is arranged on the surface of the electromagnetic soft iron (2), a conductive wire interface (4) is fixedly connected to one end of the conductive wire (3), a rotating device (5) is fixedly connected to the surface of the electromagnetic soft iron (2), a pointer (6) is fixedly connected to the surface of the rotating device (5), a conductive sliding block (7) is fixedly connected to one end of the pointer (6), a magnet fixing layer (8) is arranged on the outer side of the rotating device (5), a permanent magnet (9) is fixedly connected inside the magnet fixing layer (8), a sliding groove (10) is fixedly connected to the surface of the magnet fixing layer (8), a metal conductive groove (11) is fixedly connected inside the sliding groove (10), and a connector (12) is fixedly connected to the left end of the shell (1), a contact piece (13) is fixedly connected to the left end of the connector (12), a lithium battery (14) is arranged on the left side of the device shell (1), and a charging port (15) is arranged at the right end of the lithium battery (14); the two wire interfaces (4) are respectively and fixedly connected with two ends of the conductive wire (3), one wire interface (4) is electrically connected with the anode of an external power supply, and the other wire interface (4) is electrically connected with the conductive sliding block (7); the circle center of the rotating device (5) is rotationally connected with the device shell (1), and the center of the electromagnetic soft iron (2) is superposed with the circle center of the rotating device (5); the conductive sliding block (7) is connected with the sliding chute (10) in a sliding mode, the metal conductive groove (11) is a section of the sliding chute (10), and the groove surface of the metal conductive groove and the groove surface of the sliding chute (10) are on the same plane; the magnet fixing layer (8) is fixedly connected with the device shell (1), a square hollow is arranged inside the magnet fixing layer (8), and the side length of the square hollow is larger than the diameter of the rotating device (5); the two permanent magnets (9) are symmetrical about the circle center of the magnet fixing layer (8), and opposite magnetic poles are opposite magnetic poles; the positive electrode and the negative electrode are arranged inside the connector (12), the positive electrode is electrically connected with the metal conductive groove (11), the negative electrode is electrically connected with the negative electrode of an external power supply, and the contact piece (13) is electrically connected with the positive electrode and the negative electrode of the connector (12) respectively; the contact piece (13) is matched with the charging port (15);
when the lithium battery (14) with insufficient electric quantity is charged, the conducting wire (3) is electrified because the conducting wire interface (4) at one end of the conducting wire (3) is electrically connected with the anode of an external power supply, according to the magnetic effect of current, the conducting wire (3) forms a magnetic field, the electromagnetic soft iron (2) surrounded by the conducting wire (3) is magnetized to form a stronger magnetic field, and the stronger magnetic field interacts with the magnetic field between the two permanent magnets (9) to generate force, the rotating device (5) can rotate around the center of a circle of the rotating device, so that the electromagnetic soft iron (2), the conducting wire (3) on the electromagnetic soft iron and the rotating device (5) rotate at the moment;
the rotating device (5) rotates to drive the pointer (6) fixedly connected with the rotating device to rotate, the pointer (6) drives the conductive sliding block (7) on the pointer to rotate, and because the lithium battery (14) is insufficient in electric quantity at the moment, the current during charging is the largest, the current passing through the conductive wire (3) is also the largest, the magnetic field generated by the conductive wire (3) and the electromagnetic soft iron (2) is the largest, the acting force of the magnetic field between the two permanent magnets (9) is also the largest, and in the same way, the deflection angle of the rotating device (5) is also the largest, and the conductive sliding block (7) on the pointer (6) is contacted with the rightmost end of the metal conductive groove (11) at the moment, so the lithium battery;
because when the electricity of lithium cell (14) is close to fully filling, charging current can reduce gradually, when little to a certain degree, lithium cell (14) is full of electricity, and in this process, the electric quantity in electric lead (3) reduces with the same reason, the angle of deflection of rotary device (5) slowly reduces, just fully charge lithium cell (14), when the electric current just reaches a certain degree promptly, the angle of deflection of rotary device (5) also just reduces to and makes electrically conductive slider (7) on pointer (6) not contact with metal conducting groove (11), metal conducting groove (11) outage this moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845786.2A CN112086311B (en) | 2020-08-20 | 2020-08-20 | Full-charge automatic power-off device of lithium battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010845786.2A CN112086311B (en) | 2020-08-20 | 2020-08-20 | Full-charge automatic power-off device of lithium battery |
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| Publication Number | Publication Date |
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| CN112086311A CN112086311A (en) | 2020-12-15 |
| CN112086311B true CN112086311B (en) | 2021-08-20 |
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| CN202010845786.2A Active CN112086311B (en) | 2020-08-20 | 2020-08-20 | Full-charge automatic power-off device of lithium battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663310U (en) * | 2010-04-30 | 2010-12-01 | 林水杉 | Automatic power-off type power strip dedicated for charging |
| CN102163865A (en) * | 2011-04-19 | 2011-08-24 | 中国科学院长春光学精密机械与物理研究所 | Charger with automatic power-off function |
| CN102820591A (en) * | 2012-09-10 | 2012-12-12 | 国家电网公司 | Automatic-outage-type special charging power socket |
| CN104362712A (en) * | 2014-12-04 | 2015-02-18 | 天津欧琳电子有限公司 | Automatic power-off charger for mobile phone |
| CN211123003U (en) * | 2019-09-30 | 2020-07-28 | 贵州黔变电气科技有限责任公司 | Ammeter with protection circuit function |
-
2020
- 2020-08-20 CN CN202010845786.2A patent/CN112086311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201663310U (en) * | 2010-04-30 | 2010-12-01 | 林水杉 | Automatic power-off type power strip dedicated for charging |
| CN102163865A (en) * | 2011-04-19 | 2011-08-24 | 中国科学院长春光学精密机械与物理研究所 | Charger with automatic power-off function |
| CN102820591A (en) * | 2012-09-10 | 2012-12-12 | 国家电网公司 | Automatic-outage-type special charging power socket |
| CN104362712A (en) * | 2014-12-04 | 2015-02-18 | 天津欧琳电子有限公司 | Automatic power-off charger for mobile phone |
| CN211123003U (en) * | 2019-09-30 | 2020-07-28 | 贵州黔变电气科技有限责任公司 | Ammeter with protection circuit function |
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| CN112086311A (en) | 2020-12-15 |
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| CB03 | Change of inventor or designer information | ||
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Inventor after: Wang Cheng Inventor after: Wang Long Inventor after: Li Yihong Inventor after: He Danping Inventor before: He Danping |
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Effective date of registration: 20210802 Address after: 518000 25K, Donggang center, Dongmen street, Luohu District, Shenzhen, Guangdong Applicant after: Wang Cheng Address before: 325500 Room 301, 60 Langqiao Middle Road, Sixi Town, Taishun County, Wenzhou City, Zhejiang Province (trusteeship-76) Applicant before: Ba'an copywriting planning (Wenzhou) Co.,Ltd. |
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Effective date of registration: 20221101 Address after: 518,000 No.8, No.6, 11th Floor, Light Industry Building, No. 1002, Aiguo Road, Xinyi Community, Huangbei Street, Luohu District, Shenzhen, Guangdong Patentee after: Zhongan Huan (Shenzhen) Technology Development Co.,Ltd. Address before: 518000 25K, Donggang center, Dongmen street, Luohu District, Shenzhen, Guangdong Patentee before: Wang Cheng |