CN111864290A

CN111864290A - Disassembly-free QI wireless charging constant-voltage output lithium rechargeable battery and production method thereof

Info

Publication number: CN111864290A
Application number: CN202010432253.1A
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2020-10-30
Also published as: CN111613740A

Abstract

The invention relates to a lithium rechargeable battery with constant voltage output of common standard model size and standard battery voltage, in particular to a disassembly-free rechargeable battery conforming to QI standard wireless charging protocol and a production method thereof. The invention provides the battery which is environment-friendly, convenient, universal, long in service life, good in compatibility, sufficient in electric power, large in capacity and standard in size, is compatible with QI wireless charging and common wired contact charging, and can completely replace conventional batteries of the same type. The invention comprises a battery shell, a battery anode component, a battery cathode component, a polymer high-capacity lithium battery core, a QI receiving coil, an ultrathin magnetic shielding layer tightly attached to the QI receiving coil, and a heat-conducting high-strength waterproof insulating pouring sealant filled in a cavity of the shell. The wireless charging system can realize the disassembly-free QI wireless charging by matching with the QI wireless charger with a proper induction distance, is very convenient to use, and has a very good prospect.

Description

Disassembly-free QI wireless charging constant-voltage output lithium rechargeable battery and production method thereof

Technical Field

The invention relates to the field of wireless rechargeable batteries, in particular to the field of constant-voltage output lithium rechargeable batteries which conform to QI standard protocols, can be wirelessly charged without disassembly and have standard models.

Background

A disposable battery. The common primary batteries exist in a large number in the market, are multiple in variety, good in universality and compatibility, cheap, convenient and available everywhere. However, the disposable battery can only be discarded after the power consumption is over, which wastes resources and pollutes the environment, and the use cost of the electric appliance is gradually increased along with the time.

Secondary batteries, which are generally mature, although many varieties, such as alkaline secondary batteries, have been developed, have poor durability, require a special charger, have high charging requirements and do not have a protection function; although the nickel-metal hydride battery, the nickel-cadmium battery and the like have large capacity, many cycle times, no memory and the like, the voltage is only 1.2V, and the use compatibility is influenced due to congenital deficiency; the lithium cell, though the capacity is big but the voltage is high, generally is 3.7V or 3.2V, need cooperate false occupy-place battery to use, generally does not take the protection, dismantles the back, and it makes mistakes easily to fill the electricity and installs again, causes the electrical apparatus to damage.

The appearance of new batteries, such as nickel-zinc batteries, has 1.6V, feasible capacity and good output current, but needs a professional charger, and different batteries cannot be mixed and used, so that the batteries are inconvenient, unprotected and easy to damage. The latest constant voltage 1.5V lithium rechargeable battery has the advantages of large capacity, high efficiency, large and stable output, built-in protection and good compatibility, the charger adopts a lithium battery charger, and the battery is internally provided with a voltage reduction and charging chip. Such batteries require specialized chargers as do nickel zinc batteries. Although the battery has derived the function of charging the battery with the USB, the battery still belongs to a wired contact type charging battery, and the non-detachable charging cannot be realized. The 6F22 multimeter 9V battery is a rechargeable battery with constant voltage output, and belongs to the category of wired contact charging as does batteries No. 1 to No. 7.

The Wireless QI Charging technology (QI Wireless Charging), QI is a "Wireless Charging" standard proposed by the Wireless Charging alliance, the first organization for standardization that promotes the Wireless Charging technology worldwide, and has two major characteristics of convenience and universality. Products of different brands can be charged by a Qi wireless charger as long as the product has a Qi mark. The QI chargers on the market generally exist, the price range is very wide, the charging distance is suitable for various consumers, the charging distance is expanded, the induction distance of most of common QI chargers is 5-8mm, the long-distance induction charging distance reaches more than 15mm, and under the precondition of economy, reasonability and higher efficiency, the long-distance QI wireless charging can reach more than 35mm, so that the QI wireless charging can be directly carried out in a disassembly-free state.

Therefore, the universal wireless charging device has standardized universal size models (cylindrical batteries No. 1-No. 7 (1.5V and voltage doubling 3V), batteries 23A (12V), 27A (12V) and square-column universal meters 9V batteries 6F22 and 6V batteries F22), wireless charging of standardized QI charging standards, standardized constant voltage output voltages (1.5V, 3V, 6V, 9V and 12V), capability of being embedded in an original electric appliance without disassembly and contact, capability of being wirelessly charged without any modification, standard-type batteries and production and manufacturing.

Disclosure of Invention

The invention aims to provide a lithium rechargeable battery which can be manufactured without disassembling standard models (cylinder No. 1 to No. 7 batteries (1.5V/3V/6V/9V/12V), 23A (12V) and 27A (12V) and square-column universal meter 9V batteries 6F22 and 6V batteries F22) of QI wireless charging constant voltage output (1.5V/3V/6V/9V/12V) and a production method thereof. This QI wireless constant voltage lithium cell that charges not only compatible multiple charging mode, compatible QI is wireless charges, compatible single section lithium ion charger charges and 4.5V-6V charger charges, possess multiple charging mode moreover, can not dismantle to embed and carry out QI wireless charging in electrical apparatus, can dismantle to get off to use wireless QI to charge, can dismantle to get off to use ordinary lithium cell mode to charge. The battery charger also has the advantages of large capacity, more times of repeated charging, convenient use, standardized size, standardized charging, disassembly-free charging and constant voltage output.

The invention is realized by the following scheme.

Exempt from to dismantle QI wireless constant voltage output lithium rechargeable battery that charges comprises lithium cell, SMT technology pasted PCB board, QI receiving coil and ultra-thin electromagnetic shield layer, positive pole subassembly, negative pole subassembly, plastic casing, the colloid that pours into.

The battery is of a standard model and comprises a cylinder No. 1-No. 7 battery (1.5V and voltage doubling 3V), 23A (12V), 27A (12V) and a square-column multimeter 9V battery 6F22 and a 6V battery F22. The middle part of the upper end of the cylindrical battery is provided with a positive convex cap, and the lower part of the upper end of the cylindrical battery is provided with a negative conducting strip. The middle part of the upper end of the square column battery is respectively provided with a positive electrode component and a negative electrode component along two sides of the axis.

The lithium cell be the polymer lithium cell of cylinder, the soft package of lithium iron phosphate lithium cell or the steel-shelled battery, its positive negative pole is connected with the BAT positive negative pole of PCB board respectively.

The QI receiving coil is an inductance coil formed by winding a litz wire or an enameled wire, and the back of the inductance coil is attached with an ultrathin electromagnetic shielding layer. Two wire ends of the coil are respectively connected with the input end of a QI management part of the PCB. The coil is uniformly wound on the outer side of the battery core along the long axis direction of the battery, and the middle of the coil is arranged close to the outermost side of the battery through an electromagnetic shielding layer.

The PCB circuit is divided into two functional parts, namely a QI wireless receiving management part and a lithium battery cell management part. The QI wireless receiving management part has the functions of QI wireless receiving, power supply management, thermal protection and rectification constant voltage output. The lithium cell management part has lithium battery charging management, overcharge, overdischarge and short circuit protection functions, constant voltage output functions and is compatible with a reverse charging function. The positive and negative poles of the constant voltage output end of the PCB are respectively connected with the positive and negative pole assemblies of the battery.

The battery body is formed by the lithium battery core, the PCB, the QI receiving coil, the ultrathin shielding layer, the battery positive and negative electrode assemblies and the shell, and the rest part of the battery body is filled with heat-conducting high-strength flame-retardant insulating pouring sealant to complete the battery with the corresponding standard model.

The invention has the beneficial effects that:

1. the wireless QI charger is charged by adopting a wireless QI charging standard protocol, has the effects of wide range, universality, compatibility and practicability, can be used for wireless QI charging, and is very convenient and trouble-saving. Only need the charger to be that QI is wireless to charge, all can realize that QI is wireless to charge.

2. The wireless QI charger has a QI charging remote sensing function, can realize disassembly-free charging by matching with the wireless QI charger with a proper distance, and does not need any modification.

3. The invention is compatible with various charging modes, QI wireless charging mode and charging function mode of common lithium battery, and is not disassembled and is built in an electric appliance for QI wireless charging, and is compatible with charging of common lithium battery charger.

4. The battery body is formed by using waterproof, insulating, high-heat-conduction, high-strength and magnetic shielding potting adhesive, can form an effective sealed cylindrical or square-cylinder battery with a battery shell, and has the advantages of good durability, water resistance and good heat dissipation.

5. The battery of the invention has a flexible and multi-mode in use. The first mode is as follows: when the battery is used as a common battery, a common charger is used for charging after being disassembled; and a second mode: disassembling and using a wireless QI charger to perform wireless charging; and a third mode: the wireless QI disassembly-free charging mode is built in the electric appliance.

6. The corresponding battery of the invention has the same size and voltage characteristics as the common conventional battery, and the cylindrical batteries No. 1 to No. 7 (1.5V and voltage doubling 3V), 23A (12V), 27A (12V) and the square-column multimeter 9V batteries 6F22 and 6V batteries F22. Therefore, the wireless QI charger can completely replace common batteries with the same model, and can carry out wireless QI charging without disassembly.

7. For multi-battery high-voltage electrical appliances, the invention takes two considerations into account, the first one: the voltage-multiplying constant-voltage output and the non-induction occupation are used in a matched mode, and a multichannel separated QI charger needs to be developed in a matched mode; and the second method comprises the following steps: the battery charger is also the final version of the battery charger, adopts a standard voltage version, only needs to develop a multi-channel near QI charger, requires that batteries at adjacent positions can carry out QI wireless induction charging, and has no mutual interference influence during induction charging of the batteries at the adjacent positions. The above multi-channel charger is suitable for another patent of authors 'multi-channel QI disassembly-free battery charger and its production method'. Therefore, the battery with the corresponding type is suitable for the electric appliances with the same type of batteries.

8. The final version of the invention is standard voltage constant voltage output (1.5V for example with No. 5 battery) and standard size, and can be compatible with and replace common batteries with the same model.

Drawings

Fig. 1 is a schematic perspective view of one embodiment of a cylindrical battery according to the present invention.

Fig. 2 is a schematic diagram of a completed version of one embodiment of a cylindrical battery of the present invention.

Fig. 3 is a schematic perspective view of an embodiment of a prismatic battery according to the present invention.

Fig. 4 is a schematic diagram of a completed version of one embodiment of a prismatic battery of the present invention.

Fig. 5 is a schematic diagram of an exemplary enumeration combination of a cylindrical battery (3V + non-inductive placeholder battery) of the present invention for use in an even-number battery appliance.

Fig. 6 is a schematic diagram of an enumerated combination of one embodiment of the present invention cylinder battery (3V + no inductive placeholder battery) used in an odd number battery appliance.

Fig. 7 is an enumeration diagram of one embodiment of the cylindrical battery 5, battery No. 7 (final version) of the present invention.

Fig. 8 is a schematic block diagram of the QI wireless charging reception conversion circuit and the constant voltage conversion output circuit of the invention.

In the figure: 1-battery core, 2-QI induction receiving coil, 3-QI induction receiving coil ultrathin electromagnetic induction shielding layer, 4-pcb, 5-anode component, 6-cathode component and 7-battery shell.

Detailed Description

The invention is described in further detail below with reference to the figures and the specific embodiments.

As shown in fig. 1 and fig. 2, the cylinder can exempt from to dismantle the wireless constant voltage output lithium rechargeable battery that charges of QI, including battery case 7, the both ends of cylinder battery case 7 are provided with battery positive pole 5 and battery negative pole 6 respectively, inside is provided with lithium cell 1, near the QI receiving coil 2 and the ultra-thin electromagnetic shield layer 3 of back of the body subsides that the shell set up, there is PCB board 4 near the opposite side of electric core, they occupy reasonable position respectively, all the other spaces use waterproof, insulating, high heat conduction, high strength, the magnetism shielding is poured into and is glued and constitutes a complete battery body.

As shown in fig. 3 and 4, the two sides of the upper end of the square-column battery shell 7 are respectively provided with a battery anode 5 and a battery cathode 6, the inside of the square-column battery shell is provided with a lithium battery cell 1, a QI receiving coil 2 arranged close to the shell and an ultrathin electromagnetic shielding layer 3 attached to the back of the square-column battery shell, the other side close to the battery cell is provided with a PCB 4, the two PCB occupy reasonable positions respectively, and the rest gaps are filled with waterproof, insulating, high-heat-conducting, high-strength and magnetic shielding filling glue to form a complete battery body.

The lithium battery cell 1 can be a soft-package polymer lithium battery cell or a cylindrical lithium battery, the cylindrical battery is square/cylindrical, the square cylindrical battery is rectangular block-shaped and is used for storing electric energy, and the positive electrode and the negative electrode of the square cylindrical battery are respectively connected to the pcb board.

The battery shell can be plastic shells such as ABS, a closed space can be formed by the battery shell and the positive and negative components, a complete battery body is formed by filling waterproof, insulating, high-heat-conductivity, high-strength and magnetic shielding potting adhesive inside the battery shell, and the shell can be pasted with a commercial label.

As shown in fig. 8, the PCB is an ultra-thin PCB mounted by SMT, and the circuit of the PCB is divided into two functional parts, a QI wireless receiving management part and a lithium battery management part. The QI wireless receiving management part has the functions of QI wireless receiving, power supply management, thermal protection and rectification constant voltage output. The lithium cell management part has lithium battery charging management, overcharge, overdischarge and short circuit protection functions, constant voltage output functions and is compatible with a reverse charging function. The positive and negative poles of the constant voltage output end of the PCB are respectively connected with the positive and negative pole assemblies of the battery.

As shown in fig. 5, 6 and 7, the cylindrical battery of the present invention is listed in a multi-battery electrical appliance, and QI charging without disassembly is achieved and a corresponding QI multi-channel charger needs to be developed for use.

The disassembly-free QI rechargeable battery can be fixed in an electric appliance, and the disassembly-free permanent battery can be realized by matching the QI sensing coil with the multi-channel QI charger towards the outer cover direction of the electric appliance battery.

The above description is only a preferred embodiment of the present invention, and it is not necessary to invent various types of QI disassembly-free wireless charging constant voltage output lithium rechargeable batteries in the field (QI disassembly-free wireless charging constant voltage output lithium rechargeable batteries), and all equivalent changes, modifications, substitutions and variations made in the claims of the present invention should be covered by the present invention without departing from the principle and spirit of the present invention.

Claims

1. Can exempt from to dismantle QI wireless constant voltage output lithium rechargeable battery that charges comprises lithium cell, PCB module circuit board, positive pole subassembly, negative pole subassembly, QI receiving coil and back of body subsides ultra-thin electromagnetic shield layer, battery case, the waterproof casting glue of heat conduction high strength.

2. The lithium battery cell of claim 1, which can be a lithium battery cell of a cylindrical polymer, a soft package of a lithium iron phosphate lithium battery cell, or a steel-shell battery, and has the advantages of large capacity, large number of repeated charging times, and long service life.

3. The lithium battery cell according to claim 1 and claim 2, wherein the cell length is substantially covered by an ultra-thin thermally conductive, electrically insulating, and thermally insulating barrier layer.

4. The PCB module circuit board of claim 1, consisting of an ultra-thin PCB completed by SMT technology, an on-board integrated QI receiving and power management, lithium battery charging, protection, buck constant voltage or boost constant voltage output circuit.

And 5, the power input end of the PCB module circuit board is connected with the QI receiving coil, the lithium battery core is connected with the BAT electrode of the PCB module circuit board, and the output positive and negative are respectively connected with the positive and negative components of the battery.

And 6, the PCB module circuit board is a double-sided ultrathin PCB, wherein the element-free surface is attached to the lithium battery cell through an insulating layer and a heat conduction isolation layer, and the surface of the integrally welded patch element faces back to the outer side of the battery.

7. The QI receiving coil and its back ultra-thin high magnetic permeability shielding layer of claim 1, wherein the length of the QI coil is at least 5MM shorter than the battery of the same type, the width of the QI coil is at least 2MM larger than the diameter of the battery of the same type but not larger than 3/4 of the circumference of the battery of the same type, and the ultra-thin electromagnetic shielding layer is at least 2MM larger than each side of the coil and at least larger than the planar projection dimension of the battery.

8 QI coil is along lithium cell length direction package on the lithium cell, and the middle ultra-thin high magnetic conductivity shielding layer and the outer ultra-thin heat-conducting layer of pasting of battery that separate the coil back of the body, the coil is in the battery body outside, rolls up and pastes QI receiving coil and can not directly cover on PCB module circuit board.

9. The battery case according to claim 1 should have ultra-thin, high strength, and uniform size with respect to the size of the corresponding battery model.

10. The gap between the lithium battery cell, the circuit board, the battery anode, the battery cathode and the QI receiving coil, the magnetic ultra-thin shielding isolation layer and the battery shell of the lithium battery cell, the circuit board, the battery anode and the QI receiving coil, and the high-strength high-thermal-conductivity insulating pouring sealant are filled.

11. The battery models of claims 1-7 comprise at least cylinder No. 1 to No. 7 batteries (1.5V and voltage doubling 3V), 23A (12V), 27A (12V) commonly used for cylinder batteries and universal meter 9V batteries 6F22 and 6V batteries F22 commonly used for square columns.

12. The method for assembling a QI-disassembly-free wireless charging constant voltage output lithium rechargeable battery as claimed in claims 1 to 8, characterized by the steps of:

1) and an ultrathin electromagnetic shielding heat conduction insulating coincidence layer is fully attached to the length and the outer surface of the lithium ion battery cell.

2) Bonding the surface glue without the electronic components of the PCB on one surface of the lithium battery cell at the middle part of the length direction of the battery, and respectively welding the anode and the cathode of the battery on the anode and the cathode of the bat of the PCB.

3) Welding QI receiving coil on the wireless input end of PCB board, then will laminate at the ultra-thin high magnetic conduction shielding layer of coil and roll up the lithium cell another side of laminating to no PCB board along battery length direction.

4) And respectively connecting the positive and negative electrode assemblies of the battery with positive and negative ends out on the PCB.

5) The batteries finished in the steps 1) -4) are put into the shells of the batteries with the corresponding models.

6) Injecting heat-conducting high-strength insulating potting glue into the battery shell finished in the step 5).

7) And (4) sticking a commercial label on the battery shell to finish the production.