CN1303721C - Battery of possessing function for displaying surplus energy and method - Google Patents
Battery of possessing function for displaying surplus energy and method Download PDFInfo
- Publication number
- CN1303721C CN1303721C CNB2004100066170A CN200410006617A CN1303721C CN 1303721 C CN1303721 C CN 1303721C CN B2004100066170 A CNB2004100066170 A CN B2004100066170A CN 200410006617 A CN200410006617 A CN 200410006617A CN 1303721 C CN1303721 C CN 1303721C
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- battery
- show state
- module
- electronic installation
- display
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention provides an electronic device which comprises a battery, an electric quantity detector and a display status change module, wherein the battery comprises an electric energy storage unit used for storing electric energy and a display module arranged on the surface of the battery; the electric quantity detector can be selectively and electrically connected with the battery and can generate a residual electric quantity signal which is used for displaying the display status change module. When the battery and the electric quantity detector are combined, the display module can display corresponding residual electric quantity corresponding to the function of the display status change module so as to indicate the present residual electric quantity of the battery. When the battery and the electric quantity detector are separated, the display module substantially can still maintain the display of residual electric quantity.
Description
Technical field
The invention provides the combination of a kind of electronic installation and battery, this battery has the dump energy Presentation Function.
Background technology
Along with making rapid progress of electronic product, the electronic equipment of many script heavinesses develops and is small and exquisite carry-on portable accessory.And what change promptly is the power supply of this type of portable type electronic product thereupon, by original rely on sockets to provide fixed power source to develop into to get profit with the energy storage unit of battery one class so that electronic product is powered when portably using more.Yet electronic product singly is not exquisite all the more, constantly strengthens on the function yet, has caused the power demands of electronic product increasing yet.Mobile phone or the big portable type electronic product of digital camera one class power consumption often adopts the source of interchangeable rechargeable battery as electric energy for example, use several rechargeable batteries to make things convenient for to rotate in the long-time use of user, to increase the time that the user can use this product continuously.
Rotate when using a plurality of battery the user, the user often needs to distinguish the dump energy that is not installed on the battery on the electronic product, with the battery charge to the electric weight deficiency, or picks out and carry the battery of electric weight abundance when going out.When yet the battery of routine techniques must be on being mounted to electronic product, can carry out the dump energy of display unit that electric weight detects and utilizes electronic product by electronic product to show that battery has, and can not judge by the outward appearance of battery itself and the dump energy of battery cause the inconvenience in the use.
Summary of the invention
Main purpose of the present invention is to provide a kind of electronic installation and a kind of electric weight display packing that is applied to an electronic installation that comprises battery, and after this battery broke away from this electronic installation, this battery can show dump energy.
Electronic installation of the present invention (electronic device) comprises battery, coulometric detector and show state and changes module.Battery comprises energy storage unit and display module.Energy storage unit is used for storage of electrical energy, and display module then is arranged at the surface of battery.Coulometric detector optionally is electrically connected with battery.Coulometric detector can produce remaining power signal after detecting battery.Remaining power signal then changes module in order to the control show state.When battery combined with coulometric detector, display module can change the effect of module and demonstrate corresponding dump energy demonstration to indicate the present dump energy of battery corresponding to show state.When battery with after coulometric detector separates, display module in fact still can be kept dump energy and show.
Compare with routine techniques, battery with dump energy Presentation Function of the present invention and electric weight display packing can make the user need not via the dump energy that can learn this battery in the electronic installation that battery is packed into as using the whether reference of this battery.
Can be further understood by the following detailed description and accompanying drawings about the advantages and spirit of the present invention.
Description of drawings
Fig. 1 is the calcspar of electronic installation of the present invention.
Fig. 2 is the external view of Fig. 1 battery.
Fig. 3 is the external view of the electronic installation of Fig. 1.
Fig. 4 is the profile of the battery case of Fig. 3 along tangent line 4-4.
Fig. 5 is the profile of the battery case of Fig. 3 along tangent line 5-5.
Fig. 6 is the functional block diagram of the combination of electronic installation of the present invention and battery.
Fig. 7 is the external view of Fig. 1 another embodiment of battery of the present invention.
Fig. 8 is the external view of another embodiment of Fig. 1 electronic installation.
Fig. 9 is the flow chart of electric weight display packing of the present invention.
The figure grade explanation
10 electronic installations, 12 batteries
14: coulometric detector 15 remaining power signal
16 energy storage units, 18 display modules
20 show states change module 22 magnetic plates
24 magnetic display units, 30 battery cases
36 show with electromagnet 38 removing electromagnet
44 batteries, 46 energy storage units
48 display modules, 50 electronic installations
52 coulometric detectors, 54 show states change module
56 first tie points, 58 second tie points
Embodiment
See also Fig. 1, Fig. 1 is the calcspar of electronic installation 10 of the present invention.Electronic installation 10 comprises a battery 12 to be used for electronic installation 10 in order to storage of electrical energy, and a coulometric detector 14 is in order to detect the electric weight of battery 12.Battery 12 is installed on the electronic installation 10 removably.When battery 12 was installed on the electronic installation 10, battery 12 formed with electronic installation 10 and is electrically connected with supply electronic installation 10 needed electric energy, and combines with coulometric detector 12 simultaneously, detects dump energy for coulometric detector 14.After coulometric detector 14 detects battery 12, can produce the remaining power signal 15 of representing a battery 12 dump energies.
See also Fig. 2, Fig. 2 is the external view of Fig. 1 battery 12.In one embodiment of the invention, the display module of battery 12 is a magnetic plate (magnetic powder plate) 22.Magnetic plate 22 comprises four magnetic display units (magnetic display units) 24.Magnetic display unit 24 influences the chip component that changes outward appearance for a kind of magnetic force that stands.In an embodiment, magnetic display unit 24 can be as U.S. Pat 6,092,294 disclosed drawing boards.The surface of magnetic display unit 24 can present black or white two states, and relies on the magnetic force influence and switch between two states.Magnetic display unit 24 is a hollow design, contain metal powder, when magnetic force during from sheet magnetic display unit 24 tops, metal powder will be adhered to the upper wall of magnetic display unit 24 by magnetic attraction, and make the outward appearance of magnetic display unit 24 tops present black state.Anti-, when magnetic force during from sheet magnetic display unit 24 belows, metal powder will be left the upper wall of magnetic display unit 24 by magnetic attraction and be adhered to lower wall, and make the outward appearance of magnetic display unit 24 tops present white states.When not influenced by magnetic force, magnetic display unit 24 can be maintained at black state or the white states that is presented.In the magnetic plate 22 shown in Figure 2, only there is a magnetic display unit 24 to present black state, and has three magnetic display units 24 to present white states.
See also Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is the external view of the electronic installation 10 of Fig. 1, and Fig. 4 is the profile of the battery case 30 of Fig. 3 along tangent line 4-4, and Fig. 5 then is the profile of the battery case 30 of Fig. 3 along tangent line 5-5.The present invention can be applicable in the portable electron device, in mobile communication product.In one embodiment of the invention, electronic installation 10 is a mobile phone.In this embodiment, electronic installation 10 comprises a battery case 30, in order to device battery 12 (not being shown in Fig. 3).As shown in Figure 4, the show state of electronic installation 10 change module 20 includes four demonstrations electromagnet 36 and four removing electromagnet 38.Only show main element related to the present invention in the profile of Fig. 4, as for the then demonstration of other elements of this mobile phone.
As shown in Figure 5, when battery 12 is installed in the battery case 30, four magnetic display units 24 on the battery 12 with correspond to respectively the demonstration that is positioned at magnetic display unit 24 tops with electromagnet 36 and the removing that is positioned at magnetic display unit 24 belows with electromagnet 38.Show with electromagnet 36 in order to magnetic display unit 24 is switched to black state from white state, and removing with electromagnet 38 in order to magnetic display unit 24 is switched to white states from black state.
Please consult Fig. 1 again.In one embodiment of the invention, when electronic installation 10 is used, coulometric detector 14 continues to detect the dump energies of batteries 12, and sends optionally that remaining power signal 15 to show state changes module 20 so that show state changes the show state that module 20 changes display modules 18.With the display module with four magnetic display units 24 is example, and coulometric detector 14 at first detects and write down the electric weight of battery 12, and determines four magnetic display units 24 to present the number of black state according to the ratio of dump energy.For example when dump energy is lower than 75%, then three in four magnetic display units 24 present black state, and when dump energy is lower than 50%, and two in four magnetic display units 24 present black state.In other words, when dump energy descends or rise, coulometric detector 14 will send remaining power signal 15 to show state and change module 20, so that display module 18 can change the effect of module 20 and demonstrate corresponding dump energy demonstration corresponding to show state.
Remaining power signal 15 comprises many dump energy subsignals.Each bar dump energy subsignal corresponds to demonstration electromagnet 36 respectively, and can magnetize corresponding demonstration respectively with electromagnet 36, demonstrates a magnetized show state to control a corresponding magnetic display unit 24.And each bar dump energy subsignal corresponds to removing electromagnet 38 respectively, and can magnetize corresponding removing respectively with electromagnet 38, removes a magnetized show state to control corresponding magnetic display unit 24.Therefore, black state or white states that these magnetic display units 24 are shown can correctly demonstrate the dump energy of battery 12 altogether.Show with electromagnet 36 and remove not to be energized usually that only when magnetic display unit 24 needs to change show state, these demonstrations are energized with generation magnetic force with electromagnet 36 or the removing side with electromagnet 38 at least with electromagnet 38.
In another embodiment of the present invention, display module 18 also can be as United States Patent (USP) the 6th, 124, No. 851 disclosed Electronic Paper (electrical paper), and it then is the control module of Electronic Paper that show state changes module 20.As aforementioned, coulometric detector 14 also sends remaining power signal 15 to show state and changes module 20, and then control display module 18.
See also Fig. 6, Fig. 6 is the functional block diagram of the combination of the present invention's one electronic installation 50 and a battery 44.The present invention also provides the combination of a kind of electronic installation and battery.In an embodiment, the combination of an electronic installation 50 and a battery 44 comprises battery 44, a coulometric detector 52 is arranged on the electronic installation 50 and show state change module 54 is arranged on the electronic installation 50.Similar to the battery 12 of the embodiment of Fig. 1 about the composition of battery 44 to function, do not repeat them here.
Coulometric detector 52 optionally is electrically connected with battery 44, and detects the dump energy of battery 44.Show state changes module 54 and is electrically connected with coulometric detector 52, and can be in a sphere of action inner control display module 48 in one first show state and conversion between one second show state.
When battery 44 combines with electronic installation 50, energy storage unit 46 also will be electrically connected with coulometric detector 52, so that coulometric detector 52 is detected the dump energy of energy storage unit 46.When coulometric detector 52 detection batteries 44 electric weight were higher than a preset value, coulometric detector 52 can be controlled show state change module 54 by output one first signal, makes display module 48 show first show state.On the contrary, when coulometric detector 52 detection batteries 44 electric weight were lower than this preset value, coulometric detector 52 can output one secondary signal be controlled show state change module 54, makes display module 48 show second show state.
Show state changes module 54 and is in the not state of energising when flat.When receiving first signal or secondary signal, that is when display module 48 needed between first show state and second show state conversion, show state changed module 54 sides and is energized, with the show state of change display module 48.
When battery 44 after electronic installation 50 breaks away from, display module 48 breaks away from this sphere of action that show states change modules 54, but display module 48 in fact still can be kept first or second state of its original demonstration.
In an embodiment, display module 48 is foregoing magnetic plate, and show state change module 54 is an electromagnet.Show state change module 54 comprises as previously mentioned and shows with electromagnet and removing electromagnet.The effect of demonstration usefulness electromagnet and removing usefulness electromagnet and aforementioned similar is not being given unnecessary details at this.Under first state, the magnetic plate is in black state; And under second state, the magnetic plate is in white states.
In another embodiment, electronic installation 50 has four show states and changes module 54, and battery 44 has four display modules 48.When battery 44 electric weight are full up, coulometric detector 52 outputs first signal to four show state changes module 54, so that show state changes module 54 energisings, and then utilizes magnetic force to make display module 48 present first state, promptly four display modules 48 are all black state.And drop to 75% when following when battery 44 dump energies, coulometric detector 52 output secondary signal to four show state change one of them of module 54, utilize magnetic force to make display module 48 corresponding present second state so that this show state that receives secondary signal changes module 54, promptly have three display modules 48 to be black state with it.In this mechanism, along with battery 44 electric weight descend gradually, a plurality of show states change module 54 and export secondary signal one by one, make a plurality of display modules 48 be transformed into second show state from first show state one by one, that is the display module 48 that shows black state reduces one by one, with the dump energy of reaction cell 44.
See also Fig. 7 and Fig. 8, Fig. 7 is the external view of Fig. 1 another embodiment of battery of the present invention.Fig. 8 is the external view of another embodiment of Fig. 1 electronic installation.In present embodiment, aforesaid show state changes module 54 and is positioned on the battery, but not on the electronic installation 50.All the other arrangements of components are all identical, do not repeat them here.As shown in Figure 7, battery 12 further comprises show state and changes module 54 except that comprising aforementioned components, and first tie point 56.Show state changes module 54 and comprises many groups and show with electromagnet 36 and removing with electromagnet 38 (this figure does not show), as aforementioned, many groups show top and the below that is installed on a plurality of magnetic display units 24 with electromagnet 36 and removing with electromagnet 38 accordingly.56 of first tie points are in order to be connected with the coulometric detector 52 of electronic installation 50.As shown in Figure 8, electronic installation has each element of aforementioned electronic 50 except that show state module 54.And more comprise the position that second tie point, 58, the second tie points 58 are installed on corresponding first tie point 56.In the time of in battery 12 is installed on electronic installation 50, first tie point 56 and second tie point 58 will form electrical connection, be changed module 54 so that coulometric detector 52 controls show state.
In the present invention, display module 48 can also he be planted the element replacement divided by outside aforesaid magnetic plate or the Electronic Paper.Replace display module 48 he plant element and need meet frivolous, volume is little, can be installed in the electronic installation or on the cradle that this battery was suitable for, can utilize electric energy to change its outward appearance by electronic installation in addition, and show that in changing outward appearance the sustainable demonstration in back reaches a period of time with the demonstration dump energy.
As shown in Figure 9, Fig. 9 is the flow chart of electric weight display packing of the present invention.The present invention also provides a kind of electric weight display packing that is applied to an electronic installation.As step 100, electronic installation at first detects the dump energy of battery, and produces remaining power signal when dump energy changes.As step 102, control a display module to show the dump energy of battery according to remaining power signal.In the method, display module changes module by a show state to be controlled, and can break away from the control of show state change module and still can show the dump energy of battery.
Compare with routine techniques, battery and electric weight display packing with dump energy Presentation Function of the present invention, after battery breaks away from electronic installation, battery still can be kept dump energy and show, so the user does not need via the dump energy that can learn this battery in the electronic installation that battery is packed into as the whether reference of this battery of use.
By the above detailed description of preferred embodiments, hope can be known description feature of the present invention and spirit more, and is not to come category of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the category that is disposed at claim of the present invention of various changes and tool equivalence.
Claims (20)
1, an electronic installation, this electronic installation comprises:
One battery, this battery comprise an energy storage unit and a display module, and this energy storage unit can be used to storage of electrical energy, and this display module is arranged at the surface of this battery;
One coulometric detector optionally is electrically connected with this battery, and this coulometric detector can produce a remaining power signal after detecting this battery; With
One show state changes module, and this remaining power signal is controlled this show state and changed module;
When this battery combined with this coulometric detector, this display module can change the effect of module and demonstrate corresponding dump energy demonstration corresponding to this show state, indicates the present dump energy of this battery;
When this battery with after this coulometric detector separates, this display module still can be kept this dump energy and show.
2, electronic installation as claimed in claim 1, wherein this display module is that a magnetic plate includes a plurality of magnetic display units.
3, electronic installation as claimed in claim 2, wherein this show state change module comprises a plurality of demonstration electromagnet, and each shows the top that is arranged at a corresponding magnetic display unit with electromagnet.
4, electronic installation as claimed in claim 3, wherein this remaining power signal comprises corresponding many dump energy subsignals, each bar dump energy subsignal can magnetize a corresponding demonstration electromagnet respectively, demonstrate a magnetized show state to control a corresponding magnetic display unit, make these magnetic display units can correctly demonstrate the dump energy of this battery altogether.
5, electronic installation as claimed in claim 3, wherein these a plurality of demonstrations are not energized usually with electromagnet, but when this magnetic display unit need change show state, these a plurality of demonstrations can be energized with one of electromagnet at least.
6, electronic installation as claimed in claim 2, wherein this show state change module comprises a plurality of removing electromagnet, and each removes the below that is arranged at a corresponding magnetic display unit with electromagnet.
7, electronic installation as claimed in claim 6, wherein this remaining power signal comprises corresponding many dump energy subsignals, each bar dump energy subsignal can magnetize a corresponding removing electromagnet respectively, remove a magnetized show state to control a corresponding magnetic display unit, make these magnetic display units can correctly demonstrate the dump energy of this battery altogether.
8, electronic installation as claimed in claim 6, wherein these a plurality of removings are not energized usually with electromagnet, but when this magnetic display unit need change show state, these a plurality of demonstrations can be energized with one of electromagnet at least.
9, electronic installation as claimed in claim 2, wherein this display element is an Electronic Paper.
10, the combination of an electronic installation and a battery, this electronic installation and battery combination comprise:
One battery, this battery comprise an energy storage unit and a display module, and this energy storage unit can be used to storage of electrical energy, and this display module is arranged at the surface of this battery;
One coulometric detector is arranged on this electronic installation, optionally is electrically connected with this battery; With
One show state changes module and is arranged on this electronic installation, is electrically connected with this coulometric detector, and this show state change module can be in this display module of sphere of action inner control in one first show state and conversion between one second show state;
When this battery combines with this coulometric detector and this coulometric detector when detecting this battery electric quantity and being higher than a preset value, this coulometric detector can be exported one first signal and control this show state and change module, makes this display module show this first show state;
When this battery combines with this coulometric detector and this coulometric detector when detecting this battery electric quantity and being lower than this preset value, this coulometric detector can be exported a secondary signal and control this show state and change module, makes this display module show this second show state;
When this battery after this electronic installation breaks away from, this display module breaks away from this sphere of action that this show state changes module, but this display module still can keep this first show state and this second show state the two one of.
11, electronic installation as claimed in claim 10 and battery combination, wherein this show state changes module and is not energized usually, but when this display module between this first show state and this second show state during conversion, this show state change module is energized.
12, electronic installation as claimed in claim 10 and battery combination, wherein this electronic installation has more a plurality of show states change modules, this battery has more a plurality of display modules, in this battery electric quantity decline process gradually, this coulometric detector is exported this secondary signal one by one to this show state control module, makes that these a plurality of display modules are transformed into this second show state from this first show state one by one.
13, electronic installation as claimed in claim 12 and battery combination, wherein this electronic installation has 4 show states change modules, this battery has 4 display modules, when this battery electric quantity is full up, this coulometric detector is exported this first signal to show state and is changed module, makes these four display modules all keep this first show state; At this battery electric quantity surplus 3/4 o'clock, this coulometric detector output secondary signal to four show state changed one of module, make one of these four display modules certainly this first show state be transformed into this second show state.
14, electronic installation as claimed in claim 12 and battery combination, wherein this display module is a magnetic plate.
15, electronic installation as claimed in claim 14 and battery combination, wherein these a plurality of show states change modules comprise a plurality of demonstrations electromagnet and a plurality of removing electromagnet, and these a plurality of demonstrations lay respectively at the top and the below of each display module with electromagnet with electromagnet and a plurality of removing.
16, electronic installation as claimed in claim 15 and battery combination, wherein this first signal is in order to these a plurality of demonstration electromagnet of magnetization, so that corresponding magnetic plate presents first show state, this secondary signal is in order to these a plurality of removing electromagnet of magnetization, so that corresponding magnetic plate presents second show state.
17, the combination of an electronic installation and a battery, this electronic installation and battery combination comprise:
One battery, this battery comprises:
One energy storage unit, this energy storage unit can be used to storage of electrical energy;
One display module, this display module is arranged at the surface of this battery; And
One show state changes module, and this show state changes module in order to control the conversion between one first show state and one second show state of this display module; And
One coulometric detector is arranged on this electronic installation, optionally is electrically connected with this battery, changes module to detect this battery electric quantity and to control this show state;
When this battery combines with this coulometric detector and this coulometric detector when detecting this battery electric quantity and being higher than a preset value, this coulometric detector can be exported one first signal and control this show state and change module, makes this display module show this first show state;
When this battery combines with this coulometric detector and this coulometric detector when detecting this battery electric quantity and being lower than this preset value, this coulometric detector can be exported a secondary signal and control this show state and change module, makes this display module show this second show state;
When this battery after this electronic installation breaks away from, this show state changes module and not controlled by this coulometric detector, but this display module still can keep this first show state and this second show state the two one of.
18, a kind of electric weight display packing is applied to an electronic installation, and this electric weight display packing comprises the following step:
(1) dump energy of detection one battery is to produce a remaining power signal; And
(2) control a display module to show the dump energy of this battery according to this remaining power signal;
Wherein, this display module changes module by a show state to be controlled, and this display module can break away from the control of this show state change module and still can show the dump energy of this battery.
19, electric weight display packing as claimed in claim 18, wherein this display module is that a magnetic plate includes a plurality of magnetic display units.
20, electric weight display packing as claimed in claim 19, wherein this show state change module comprises many groups and shows the combination of using electromagnet with electromagnet and a plurality of removing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100066170A CN1303721C (en) | 2004-02-25 | 2004-02-25 | Battery of possessing function for displaying surplus energy and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100066170A CN1303721C (en) | 2004-02-25 | 2004-02-25 | Battery of possessing function for displaying surplus energy and method |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100039393A Division CN1992423A (en) | 2004-02-25 | 2004-02-25 | Electronic installation for maintaining the present status display and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1661847A CN1661847A (en) | 2005-08-31 |
| CN1303721C true CN1303721C (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100066170A Expired - Fee Related CN1303721C (en) | 2004-02-25 | 2004-02-25 | Battery of possessing function for displaying surplus energy and method |
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| Country | Link |
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| CN (1) | CN1303721C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI421507B (en) * | 2008-07-11 | 2014-01-01 | Hon Hai Prec Ind Co Ltd | System and method for indicating remaining power of an electronic device |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644746B (en) * | 2008-08-04 | 2012-06-13 | 英业达股份有限公司 | Handheld electronic device |
| JP4786700B2 (en) * | 2008-12-24 | 2011-10-05 | 三菱重工業株式会社 | Battery module |
| CN101556751B (en) * | 2009-05-05 | 2011-07-06 | 深圳叶氏启恒印刷科技有限公司 | Cell electricity-testing label |
| CN102279366A (en) * | 2010-06-11 | 2011-12-14 | 南京德朔实业有限公司 | Electric quantity display for electrical tool |
| CN102279367A (en) * | 2010-06-11 | 2011-12-14 | 南京德朔实业有限公司 | Electric tool control circuit and operating method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173053A (en) * | 1996-08-02 | 1998-02-11 | 三星电管株式会社 | Remaining battery capacity display device |
-
2004
- 2004-02-25 CN CNB2004100066170A patent/CN1303721C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1173053A (en) * | 1996-08-02 | 1998-02-11 | 三星电管株式会社 | Remaining battery capacity display device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI421507B (en) * | 2008-07-11 | 2014-01-01 | Hon Hai Prec Ind Co Ltd | System and method for indicating remaining power of an electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1661847A (en) | 2005-08-31 |
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Granted publication date: 20070307 Termination date: 20110225 |