CN115149180B - Electronic device and method for inhibiting expansion of battery - Google Patents

Abstract

An electronic device and method for suppressing battery expansion, the electronic device comprising: a first battery cell, a first conductive label, a second conductive label, a third conductive label, and a battery management unit. The first battery core comprises a first non-conductor shell, wherein the first conductive label, the second conductive label and the third conductive label are all arranged on the first non-conductor shell. The battery management unit can output a charging potential to the first battery cell, wherein the battery management unit determines a potential level of the charging potential by detecting states of the first conductive tag, the second conductive tag and the third conductive tag.

Description

Electronic device and method for inhibiting expansion of battery

Technical Field

The present invention relates to an electronic device, and more particularly, to an electronic device capable of suppressing expansion of a battery.

Background

Battery elements are generally required for notebook computers or tablet computers, however, the problem of no early warning expansion of the battery after long-term use is easy to occur, and damage to the computer device is caused. In view of this, a completely new solution has to be proposed to overcome the dilemma faced by the prior art.

Disclosure of Invention

In a preferred embodiment, the present invention provides an electronic device for suppressing expansion of a battery, comprising: a first battery cell including a first non-conductive housing; a first conductive label; a second conductive label; a third conductive tag, wherein the first conductive tag, the second conductive tag, and the third conductive tag are disposed on the first non-conductive housing; and a battery management unit outputting a charging potential to the first battery cell, wherein the battery management unit determines a potential level of the charging potential by detecting states of the first conductive tag, the second conductive tag, and the third conductive tag.

In another preferred embodiment, the present invention provides a method of inhibiting battery swelling comprising the steps of: providing a first battery core, a first conductive label, a second conductive label and a third conductive label, wherein the first conductive label, the second conductive label and the third conductive label are all arranged on a first non-conductor shell of the first battery core; detecting the states of the first conductive tag, the second conductive tag and the third conductive tag through a battery management unit to determine a potential level of a charging potential; and outputting the charging potential to the first battery cell through the battery management unit.

Drawings

Fig. 1 is a schematic diagram showing an electronic device according to an embodiment of the invention.

Fig. 2 is a schematic diagram showing an electronic device according to an embodiment of the invention.

FIG. 3A is a schematic diagram showing a first combination of conductive tags according to an embodiment of the present invention

Fig. 3B is a schematic diagram showing a second combination of conductive tags according to an embodiment of the present invention.

Fig. 3C is a schematic diagram showing a third combination of conductive tags according to an embodiment of the present invention.

Fig. 3D is a schematic diagram showing a fourth combination of conductive tags according to an embodiment of the present invention.

Fig. 4 is a partial cross-sectional view of an electronic device according to an embodiment of the invention.

Fig. 5 is a schematic diagram showing an electronic device according to an embodiment of the invention.

Fig. 6 is a schematic diagram showing an electronic device according to an embodiment of the invention.

Fig. 7 is a flowchart showing a method of suppressing expansion of a battery according to an embodiment of the present invention.

Wherein reference numerals are as follows:

100, 200, 500, 600: electronic device

110, 510: first battery core

115, 515: first non-conductor housing

120: first conductive label

121: first end of first conductive label

122: second end of first conductive label

124: polyester plastic layer

125: insulating adhesive layer

126: conductive layer

130: second conductive label

131: first end of second conductive label

132: second end of second conductive label

140: third conductive label

141: first end of third conductive label

142: second end of third conductive label

150: fourth conductive tag

151: first end of fourth conductive label

152: second end of fourth conductive label

160: fifth conductive label

161: first end of fifth conductive label

162: second end of fifth conductive label

170: sixth conductive tag

171: first end of sixth conductive label

172: second end of sixth conductive label

180, 280, 580: battery management unit

282, 582: power supply

284, 584: potential detector

286, 586: processor and method for controlling the same

610: second battery core

615: second non-conductor housing

LT: length of

V1: first potential

V2: second potential

V3: third potential

V4: fourth potential

V5: fifth potential

V6: sixth potential

VDD: supply potential

VG: charge potential

W1, W2, W3: width of (L)

Detailed Description

The present invention will be described in more detail with reference to the drawings, wherein the invention is shown in the drawings.

Certain terms are used throughout the description and claims to refer to particular components. Those of ordinary skill in the art will appreciate that a hardware manufacturer may refer to the same element by different names. The description and claims do not take the form of an element differentiated by name, but rather by functional differences. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The term "substantially" means that within an acceptable error range, a person skilled in the art can solve the technical problem within a certain error range, and achieve the basic technical effect. In addition, the term "coupled" as used herein includes any direct or indirect electrical connection. Accordingly, if a first device couples to a second device, that connection may be through a direct electrical connection, or through an indirect electrical connection via other devices and connections.

Fig. 1 is a schematic diagram illustrating an electronic device 100 according to an embodiment of the invention. The electronic Device 100 may be a Mobile Device (Mobile Device), such as: a Smart Phone (Smart Phone), a Tablet Computer (Tablet Computer), or a notebook Computer (Notebook Computer). As shown in fig. 1, the electronic device 100 at least includes: a first Battery Cell 110, a first Conductive Label 120, a second Conductive Label 130, a third Conductive Label 140, and a Battery management unit (Battery Management Unit, BMU) 180. It must be understood that although not shown in fig. 1, the electronic device 100 may also include other elements, such as: a Display Device, a Speaker, a touch module, and a Housing.

The first battery cell 110 includes a first non-conductive housing (Nonconductive Housing) 115, the shape and size of which are not particularly limited in the present invention. The first conductive tag 120, the second conductive tag 130, and the third conductive tag 140 are disposed on the first non-conductive housing 115. The first conductive label 120, the second conductive label 130, and the third conductive label 140 may each take the shape of a straight bar. In some embodiments, the first conductive tag 120, the second conductive tag 130, and the third conductive tag 140 have the same length LT and different widths W1, W2, W3. For example, the width W3 of the third conductive tag 140 may be greater than the width W2 of the second conductive tag 130, and the width W2 of the second conductive tag 130 may be greater than the width W1 of the first conductive tag 120, but is not limited thereto. The battery management unit 180 may output a charging potential VG to the first battery cell 110. It should be noted that the battery management unit 180 determines a potential level of the charging potential VG by detecting the states of the first conductive label 120, the second conductive label 130, and the third conductive label 140. Since the states of the first conductive label 120, the second conductive label 130, and the third conductive label 140 indicate the health of the first battery cell 110, the battery management unit 180 can provide the charging potential VG with an appropriate level, thereby effectively suppressing the non-ideal swelling phenomenon of the first battery cell 110 and maximizing the service life of the first battery cell 110.

The following embodiments describe the detailed structure and operation of the electronic device 100. It must be understood that these drawings and descriptions are only for the purpose of example and are not intended to limit the scope of the invention.

Fig. 2 is a schematic diagram showing an electronic device 200 according to an embodiment of the invention. Fig. 2 is similar to fig. 1. In the embodiment of fig. 2, a battery management unit 280 of the electronic device 200 includes a power supply (Power Supply Device) 282, a Voltage Detector (Voltage Detector) 284, and a Processor (Processor) 286. The power Supply 282 may output a Supply Voltage (VDD) to a first end 121 of the first conductive tag 120, a first end 131 of the second conductive tag 130, and a first end 141 of the third conductive tag 140. The supply potential VDD may represent a high logic level (e.g., logic "1"). The potential detector 284 may detect a first potential V1 at a second end 122 of the first conductive tag 120, a second potential V2 at a second end 132 of the second conductive tag 130, and a third potential V3 at a second end 142 of the third conductive tag 140. Then, the processor 286 can generate the charge voltage VG and adjust the voltage level according to the first voltage V1, the second voltage V2, and the third voltage V3. The remaining features of the electronic device 200 of fig. 2 are similar to those of the electronic device 100 of fig. 1, so that similar operation effects can be achieved in both embodiments.

In some embodiments, the processor 286 determines whether any of the first conductive tag 120, the second conductive tag 130, and the third conductive tag 140 is Broken (Broken) by analyzing the first potential V1, the second potential V2, and the third potential V3. In detail, the states of the first conductive tag 120, the second conductive tag 130, and the third conductive tag 140 may include a first combination, a second combination, a third combination, and a fourth combination, which may be described in the following embodiments.

Fig. 3A is a schematic diagram showing a first combination of conductive tags according to an embodiment of the present invention. In the embodiment of fig. 3A, the first battery cell 110 has not yet swelled, so that none of the first conductive tag 120, the second conductive tag 130, and the third conductive tag 140 is broken. At this time, the first voltage V1, the second voltage V2, and the third voltage V3 will all be at the high logic level. In response to the first combination, the processor 286 can set the charge potential VG to an original level (e.g., 4.45V).

Fig. 3B is a schematic diagram showing a second combination of conductive tags according to an embodiment of the present invention. In the embodiment of fig. 3B, the first battery cell 110 is slightly inflated such that the first conductive label 120 breaks, but the second conductive label 130 and the third conductive label 140 do not. At this time, the first voltage V1 will be at a low logic level (e.g., logic "0"), and the second voltage V2 and the third voltage V3 will both be at a high logic level. In response to the second combination, the processor 286 can set the charge potential VG to a first level (e.g., 4.4V).

Fig. 3C is a schematic diagram showing a third combination of conductive tags according to an embodiment of the present invention. In the embodiment of fig. 3C, the first battery cell 110 is moderately expanded such that the first conductive label 120 and the second conductive label 130 break, but the third conductive label 140 does not. At this time, the first voltage V1 and the second voltage V2 will be both at the low logic level, and the third voltage V3 will be at the high logic level. In response to the third combination, the processor 286 can set the charge potential VG to a second level (e.g., 4.3V).

Fig. 3D is a schematic diagram showing a fourth combination of conductive tags according to an embodiment of the present invention. In the embodiment of fig. 3D, the first battery cell 110 is heavily expanded such that the first conductive label 120, the second conductive label 130, and the third conductive label 140 are all broken. At this time, the first voltage V1, the second voltage V2, and the third voltage V3 are all at the low logic level. In response to the fourth combination, the processor 286 sets the charge potential VG to a third level (e.g., 4.2V).

Generally, the more severe the expansion of the first battery cell 110, the greater the width of the conductive label will be caused to break. In view of this, the processor 286 can correspondingly adjust the level of the charging potential VG to slow the expansion speed of the first battery cell 110 and also prolong the service life thereof.

Fig. 4 is a partial cross-sectional view of an electronic device 200 according to an embodiment of the invention. In the embodiment of fig. 4, the first conductive label 120 includes a polyester plastic (Polyethylene Terephthalate) layer 124, an Insulation Glue (Insulation Glue) layer 125, and a conductive layer 126, wherein the conductive layer 126 is interposed between the polyester plastic layer 124 and the Insulation Glue layer 125, and the Insulation Glue layer 125 is adhered to the first non-conductive housing 115. For example, safety specification data about the first battery cell 110 may be printed on the polyester plastic layer 124, and the conductive layer 126 may be used to receive the supply potential VDD and output the first potential V1. However, the present invention is not limited thereto. In other embodiments, if the safety specification data about the first battery cell 110 is printed on the first non-conductive housing 115, the polyester plastic layer 124, the insulating adhesive layer 125, and the conductive layer 126 may all be implemented with transparent materials. It should be noted that the second conductive tag 130 and the third conductive tag 140 may have the same or corresponding structure as the first conductive tag 120, and will not be described herein.

Fig. 5 is a schematic diagram illustrating an electronic device 500 according to an embodiment of the invention. Fig. 5 is similar to fig. 2. In the embodiment of fig. 5, the electronic device 500 further includes a fourth conductive tag 150, a fifth conductive tag 160, and a sixth conductive tag 170, which are disposed on a first non-conductive housing 515 of a first battery cell 510. For example, the fourth conductive label 150 may correspond to the first conductive label 120, which may have the same width W1; the fifth conductive tag 160 may correspond to the second conductive tag 130, which may have the same width W2; while the sixth conductive label 170 may correspond to the third conductive label 140, which may have the same width W3. In addition, a battery management unit 580 of the electronic device 500 includes a power supply 582, a potential detector 584, and a processor 586. The power supply 582 may output a supply voltage VDD to a first end 121 of the first conductive tag 120, a first end 131 of the second conductive tag 130, a first end 141 of the third conductive tag 140, a first end 151 of the fourth conductive tag 150, a first end 161 of the fifth conductive tag 160, and a first end 171 of the sixth conductive tag 170. The potential detector 584 can detect a first potential V1 at a second end 122 of the first conductive tag 120, a second potential V2 at a second end 132 of the second conductive tag 130, a third potential V3 at a second end 142 of the third conductive tag 140, a fourth potential V4 at a second end 152 of the fourth conductive tag 150, a fifth potential V5 at a second end 162 of the fifth conductive tag 160, and a sixth potential V6 at a second end 172 of the sixth conductive tag 170. Then, the processor 586 may generate the charging voltage VG and adjust the voltage level according to the first voltage V1, the second voltage V2, the third voltage V3, the fourth voltage V4, the fifth voltage V5, and the sixth voltage V6. The remaining features of the electronic device 500 of fig. 5 are similar to those of the electronic device 200 of fig. 2, so that similar operation effects can be achieved in both embodiments.

In detail, the processor 586 determines whether the first conductive tag 120, the second conductive tag 130, and the third conductive tag 140, the fourth conductive tag 150, the fifth conductive tag 160, and the sixth conductive tag 170 are broken by analyzing the first potential V1, the second potential V2, the third potential V3, the fourth potential V4, the fifth potential V5, and the sixth potential V6. In some embodiments, processor 586 further performs a double determination procedure to reduce the likelihood of false positives, as described below. The term "double judgment process" refers to a process in which when two conductive labels having the same width output a potential of a low logic level at the same time, the conductive labels are judged to be broken. If one conductive tag outputs a low logic level potential, but the other conductive tag outputs a high logic level potential, it is considered that these conductive tags are not broken (i.e., a more strict judgment standard is adopted).

First, when the first potential V1 of the first conductive label 120 and the fourth potential V4 of the fourth conductive label 150 are both at the low logic level, the processor 586 may determine that the first battery cell 510 is slightly expanded, and may decrease the charging potential VG from the original level to the first level (corresponding to the embodiment of fig. 3B). Conversely, if either of the first potential V1 and the fourth potential V4 is at the high logic level, the charge potential VG will remain at the original level (since only one of the first conductive tag 120 and the fourth conductive tag 150 breaks, the dual-judgment test is not passed).

Then, when the second potential V2 of the second conductive tag 130 and the fifth potential V5 of the fifth conductive tag 160 are both at the low logic level, the processor 586 may determine that the first battery cell 510 is moderately expanded, and may decrease the charging potential VG from the first level to the second level (corresponding to the embodiment of fig. 3C). Conversely, if either of the second potential V2 and the fifth potential V5 is at the high logic level, the charge potential VG will remain at the first level (since only one of the second conductive tag 130 and the fifth conductive tag 160 breaks, the dual-judgment test is not passed).

Finally, when the third potential V3 of the third conductive label 140 and the sixth potential V6 of the sixth conductive label 170 are both at the low logic level, the processor 586 may determine that the first battery cell 510 is severely expanded, and may decrease the charging potential VG from the second level to the third level (corresponding to the embodiment of fig. 3D). Conversely, if either of the third potential V3 and the sixth potential V6 is at the high logic level, the charge potential VG will remain at the second level (since only one of the third conductive tag 140 and the sixth conductive tag 170 breaks, the dual judgment test is not passed).

Fig. 6 is a schematic diagram illustrating an electronic device 600 according to an embodiment of the invention. Fig. 6 is similar to fig. 5. In the embodiment of fig. 6, the electronic device 600 further includes a second battery core 610, which includes a second non-conductive casing 615, and the fourth conductive tag 150, the fifth conductive tag 160, and the sixth conductive tag 170 are disposed on the second non-conductive casing 615 of the second battery core 610. The second battery cell 610 may be independent from the first battery cell 110. The processor 586 may determine the potential level of the charge potential VG by detecting the states of the first conductive tag 120, the second conductive tag 130, the third conductive tag 140, the fourth conductive tag 150, the fifth conductive tag 160, and the sixth conductive tag 170. To reduce the probability of false positives, the processor 586 may also employ the dual decision procedure described above. In other embodiments, the electronic device 600 may further include a plurality of battery cells and a plurality of conductive labels, and the configuration is not particularly limited. The remaining features of the electronic device 600 of fig. 6 are similar to those of the electronic device 500 of fig. 5, so that similar operation effects can be achieved in both embodiments.

Fig. 7 is a flowchart showing a method of suppressing expansion of a battery according to an embodiment of the present invention. The control method comprises the following steps. In step S710, a first battery cell, a first conductive label, a second conductive label, and a third conductive label are provided, wherein the first conductive label, the second conductive label, and the third conductive label are disposed on a first non-conductive housing of the first battery cell. In step S720, the states of the first conductive tag, the second conductive tag, and the third conductive tag are detected by a battery management unit to determine a potential level of a charging potential. In step S730, the charging potential is output to the first battery cell through the battery management unit. It should be understood that the above steps need not be performed sequentially, and each feature of the embodiments of fig. 1-6 can be applied to the control method of fig. 7.

The invention provides a novel electronic device and a novel electronic method, which can effectively inhibit the non-ideal expansion phenomenon of a battery core. Generally, the present invention has at least the advantages of improving safety, reducing manufacturing cost, and prolonging battery life, so that it is suitable for various mobile communication devices.

It should be noted that the above-mentioned potential levels and device parameters are not limitations of the present invention. The designer can adjust these settings according to different needs. The electronic device and the control method of the present invention are not limited to the states illustrated in fig. 1 to 7. The present invention may include only any one or more features of any one or more of the embodiments of fig. 1-7. In other words, not all of the illustrated features need be implemented in the electronic device and the method thereof of the present invention.

The methods of the present invention, or certain aspects or portions thereof, may exist in program code form. The program code may be embodied on a tangible medium, such as a floppy diskettes, CD-ROMs, hard drives, or any other machine-readable storage medium, or may not be limited to an external form of computer program product, wherein, when the program code is loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the invention. Program code may also be transmitted over some transmission medium, such as electrical wiring or cabling, through fiber optics, or via any other form of transmission, wherein, when the program code is received and loaded into and executed by a machine, such as a computer, the machine becomes an apparatus for practicing the invention. When implemented in a general-purpose processing unit, the program code combines with the processing unit to provide a unique apparatus that operates analogously to specific logic circuits.

While the invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (8)

1. An electronic device that inhibits battery swelling, comprising:

a first battery cell including a first non-conductive housing;

a first conductive label;

a second conductive label;

a third conductive tag, wherein the first conductive tag, the second conductive tag, and the third conductive tag are disposed on the first non-conductive housing; and

a battery management unit for outputting a charge potential to the first battery cell, wherein the battery management unit determines a potential level of the charge potential by detecting the states of the first conductive tag, the second conductive tag, and the third conductive tag

Wherein, this battery management unit includes:

a power supply for outputting a supply potential to the first conductive tag, the second conductive tag, and the third conductive tag;

a potential detector for detecting a first potential from the first conductive tag, a second potential from the second conductive tag, and a third potential from the third conductive tag; and

a processor for generating the charging potential according to the first potential, the second potential and the third potential;

the processor is used for judging whether any one of the first conductive tag, the second conductive tag and the third conductive tag is broken or not by analyzing the first potential, the second potential and the third potential;

wherein if none of the first conductive tag, the second conductive tag, and the third conductive tag is broken, the charging potential will have an original level;

if the first conductive tag is broken but neither the second conductive tag nor the third conductive tag is broken, the charging potential is reduced to a first level;

if the first conductive tag and the second conductive tag are broken but the third conductive tag is not broken, the charging potential is reduced to a second level;

wherein the first level is lower than the original level and the second level is lower than the first level.

2. The electronic device of claim 1, wherein the first conductive label, the second conductive label, and the third conductive label have the same length and different widths.

3. The electronic device of claim 1, wherein,

if the first conductive tag, the second conductive tag, and the third conductive tag are all broken, the charge potential will drop to a third level.

4. The electronic device of claim 1, wherein each of the first conductive tag, the second conductive tag, and the third conductive tag each comprise:

a polyester plastic layer;

an insulating adhesive layer; and

and a conductive layer between the polyester plastic layer and the insulating adhesive layer, wherein the insulating adhesive layer is adhered to the first non-conductor shell.

5. The electronic device of claim 1, further comprising:

a fourth conductive tag corresponding to the first conductive tag;

a fifth conductive tag corresponding to the second conductive tag; and

and a sixth conductive tag corresponding to the third conductive tag, wherein the fourth conductive tag, the fifth conductive tag, and the sixth conductive tag are disposed on the first non-conductive housing.

6. The electronic device of claim 1, further comprising:

a second battery cell comprising a second non-conductive housing;

a fourth conductive tag corresponding to the first conductive tag;

a fifth conductive tag corresponding to the second conductive tag; and

and a sixth conductive tag corresponding to the third conductive tag, wherein the fourth conductive tag, the fifth conductive tag, and the sixth conductive tag are disposed on the second non-conductive housing.

7. The electronic device of claim 5 or 6, wherein the battery management unit further performs a dual determination process by detecting the states of the fourth conductive tag, the fifth conductive tag, and the sixth conductive tag, and determines the level of the charging potential.

8. A method of inhibiting battery swelling comprising the steps of:

providing a first battery core, a first conductive label, a second conductive label and a third conductive label, wherein the first conductive label, the second conductive label and the third conductive label are all arranged on a first non-conductor shell of the first battery core;

detecting the states of the first conductive tag, the second conductive tag and the third conductive tag through a battery management unit to determine a potential level of a charging potential; and

outputting the charging potential to the first battery cell through the battery management unit;

outputting a supply potential to the first conductive tag, the second conductive tag, and the third conductive tag;

detecting a first potential from the first conductive tag, a second potential from the second conductive tag, and a third potential from the third conductive tag;

generating the charging potential according to the first potential, the second potential and the third potential;

judging whether any one of the first conductive tag, the second conductive tag and the third conductive tag is broken or not by analyzing the first potential, the second potential and the third potential;

if none of the first conductive tag, the second conductive tag, and the third conductive tag is broken, the charging potential will have an original level;

if the first conductive tag is broken but neither the second conductive tag nor the third conductive tag is broken, the charging potential is reduced to a first level; and

if the first conductive tag and the second conductive tag are broken but the third conductive tag is not broken, the charging potential is reduced to a second level;

wherein the first level is lower than the original level and the second level is lower than the first level.

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