CN2453555Y

CN2453555Y - Device for showing quantity of electric charge in cell

Info

Publication number: CN2453555Y
Application number: CN 00263149
Authority: CN
Inventors: 罗圣心
Original assignee: Inventec Corp
Current assignee: Inventec Corp
Priority date: 2000-12-01
Filing date: 2000-12-01
Publication date: 2001-10-10
Anticipated expiration: 2010-12-01

Abstract

The utility model relates to a device for displaying battery capability, particularly a device used in a note-book type computer for displaying the dump energy of a battery via the color of a display lamp and the flicker frequency thereof. The utility model comprises a sensor for sensing the battery capacity, a signal corresponding to the battery capacity is transmitted to a signal processor, wherein, according to a signal with the color and the flicker frequency of lamp light, which is transmitted from the sensor, the signal processing device drives the display lamp, so the battery capacity is displayed.

Description

The battery capacity display unit

The utility model relates to a kind of battery capacity display unit, particularly a kind of being applied in the notebook computer, the device of representing the last electric weight of battery by the color and the flicker frequency thereof of display lamp; The user can learn the electric weight that current battery is remaining easily in macroscopic mode.

The benefit of notebook computer maximum is easy to carry because its volume is little, in light weight, on the general work or the people that goes from place to place with computer of needs in life bring considerable facility; But, notebook computer has a fatal shortcoming always, and that is exactly the power management of battery.

Shortcoming on the battery power management is from two aspects, and the time that is to use is not very long on the one hand, with the lithium battery of present usefulness the best, at most can only use continuously 2.5-3 hour yet; Problem on the other hand then be not to use the person to get to note at any time the battery capacity residue what so that carry out the replacing of battery.

In order to allow the user can learn the electric weight of remaining battery easily, successively the someone has designed some modes: for example, the somebody uses the mode of liquid crystal display (LCD) to show the capacity of battery, but such mode can increase many costs; Having a kind of again is to utilize the bar shaped indicating piece of design on battery body to represent the method for battery electric quantity, but, such practice must be pulled up the battery in the work to come, and the two ends of conducting bar shaped indicating piece just can predict the electric weight of battery, and is also inconvenient in the use; And current the most general be to adopt the mode of software supervision to learn the electric weight of battery as rule, such mode also has its shortcoming, that is exactly that the user must adopt certain software or (for example present windows workspace system) operation under certain operating system.

Though more than these modes can show the capacity of battery, it is not that cost is too high, just be to use to be restricted (for example must use certain software), be not very convenient.

The purpose of this utility model is to provide a kind of battery capacity display unit, it makes the user need only the dump energy that just can learn battery with the light color and the flicker frequency thereof of display lamp, this battery capacity display unit project organization is simpler, and lower cost is also convenient in the use.

Battery capacity display unit of the present utility model, it comprises: a display lamp can produce the light of at least two kinds of different colours, in order to show battery meter; One sensor, in order to the capacity of sensing battery, output one pulse wave signal corresponding to this battery capacity is with a condition indicative signal; And a signal processing apparatus, receive described pulse wave signal and condition indicative signal, and export a state pulse wave signal and drive described display lamp, the capacity that shows battery by the light color and the flicker frequency of this display lamp of control.

The utility model is a kind of battery capacity display unit, particularly a kind of being applied in the notebook computer, the device of representing the last electric weight of battery with the color and the flicker frequency thereof of display lamp; It uses a sensor (in the utility model, this sensor is a microprocessor) to come the sensing battery electric quantity, and sends two signals according to battery electric quantity, a flicker frequency in order to the decision display lamp, and another then is used to determine the light color of display lamp; These two signals become the drive signal of a driving display lamp again through output after the signal processing means processes, color and flicker frequency by this drive signal control display lamp, so the user by the color and the frequency of observing display lamp, can learn the capacity of battery.

Below in conjunction with drawings and Examples content of the present utility model and technology are described in detail.

Fig. 1 is a structure block diagram of the present utility model;

Fig. 2 is the equivalent electric circuit structural map of the utility model structure;

Fig. 3 is a signal waveforms of the present utility model;

Fig. 4 is the circuit diagram of sensor of the present utility model.

Preferred embodiment of the present utility model is shown in the block diagram of Fig. 1.Battery capacity display unit of the present utility model mainly comprises three parts: be respectively sensor 2, signal processing apparatus 3 and display lamp 4; Wherein, display lamp 4 is in order to show battery meter; 2 of sensors are exported a pulse wave signal 21 corresponding to battery capacity in order to the sensing battery capacity, and a condition indicative signal 22; Signal processing apparatus 3 then in order to receive pulse wave signal 21 and condition indicative signal 22, is exported a state pulse wave signal 31, in order to drive the color and the flicker frequency of display lamp 4, shows battery meter.

Followingly with reference to Fig. 2 the thin portion part drawing of present embodiment is further described, sensor 2 is a microprocessor in the present embodiment; 3 of signal processing apparatus further comprise first with door 34 (first and-gate), second with door 33 (second and-gate), an and not gate 32 (notgate); Display lamp 4 then is a dichromatic LED 40 in the present embodiment, can optionally send two kinds of colors light of (as red and green).Generally speaking, redness can be represented the comparison emergency usually, so in the present embodiment, there is not much left to represent battery capacity with red light, and green light then represents electric weight more abundant; And the common representative of quickflashing is more urgent, and the meaning of reminding the people to note is arranged, so in the present embodiment, red light adds quickflashing again and represents the last minimum situation of electric weight, needs to handle at once, and the rest may be inferred for remaining situation.Certainly, in the feasible embodiment of another kind changed, aforesaid display lamp 4 also can adopt Tricolor LED, utilizes the light of three kinds of different colours and different flicker frequencies, more can at length represent different battery remaining powers.

At first, record the remaining electric weight of battery 1 with sensor 2, then according to this dump energy output pulse wave signal 21 and condition indicative signal 22, the relation of its output waveform and battery capacity percentage and the operating principle of circuit thereafter contrast Fig. 3 and are described as follows:

When battery capacity during at 100%-70%, then the waveform 210 of pulse wave signal 21 is low (Low), and the waveform 220 of condition indicative signal 22 is high (High); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 is depicted as low (Low), condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33, its output waveform as Fig. 3 313 shown in also be low (Low); Because two signals (310 and 311) are all low (Low), make dichromatic LED 40 not be driven and do not light.

When battery capacity during at 70%-50%, then the waveform 210 of pulse wave signal 21 is the square wave of a low frequency, and the waveform 220 of condition indicative signal 22 is high (High); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 be depicted as one with pulse wave signal waveform 210 on all four low-frequency square-waves, condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33,313 of its output waveform such as Fig. 3 is depicted as low (Low); Because to be a low-frequency square-wave and the second state pulse wave signal 310 low is (Low) for the first state pulse wave signal 311, make dichromatic LED 40 be driven and present the situation that green light dodges slowly.

When battery capacity during at 50%-20%, then the waveform 210 of pulse wave signal 21 is the square wave of a high frequency, and the waveform 220 of condition indicative signal 22 is high (High); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 be depicted as one with pulse wave signal waveform 210 on all four high frequency square waves, condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33,313 of its output waveform such as Fig. 3 is depicted as low (Low); Because the first state pulse wave signal 311 is a high frequency square wave and the second state pulse wave signal 310 is low (Low), makes dichromatic LED 40 be driven and present the situation of green light quickflashing.

When battery capacity during at 20%-10%, then the waveform 210 of pulse wave signal 21 is the square wave of a low frequency, and the waveform 220 of condition indicative signal 22 is low (Low); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 is depicted as low (Low), condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33,313 of its output waveform such as Fig. 3 be depicted as one with pulse wave signal waveform 210 on all four low-frequency square-waves; Because the first state pulse wave signal 311 for low (Low) second state pulse wave signal 310 is a low-frequency square-wave, makes dichromatic LED 40 be driven and presents the situation that red light dodges slowly.

When battery capacity during at 10%-0%, then the waveform 210 of pulse wave signal 21 is the square wave of a high frequency, and the waveform 220 of condition indicative signal 22 is low (Low); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 is depicted as low (Low), condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33,313 of its output waveform such as Fig. 3 be depicted as one with pulse wave signal waveform 210 on all four high frequency square waves; The situation that presents the red light quickflashing because the first state pulse wave signal 311 for low (Low) second state pulse wave signal 310 is a high frequency square wave, makes dichromatic LED 40 be driven.

When if battery 1 is in charged state, equally please referring to Fig. 3: the waveform 210 of pulse wave signal 21 is high (High), and the waveform 220 of condition indicative signal 22 also is high (High); At this moment, two signals (21 and 22) are exported one first state pulse wave signal 311 by first with door 34,312 of its output waveform such as Fig. 3 is depicted as height (High), condition indicative signal 22 then by not gate 32 with pulse wave signal 21 input to second with the door 33,313 of its output waveform such as Fig. 3 is depicted as low (Low); Because the first state pulse wave signal 311 is zero for high (High) and frequency, and the second state pulse wave signal 310 is low (Low), make dichromatic LED 40 be driven and the situation that presents green light and do not glimmer.

At last, with the discharging and recharging of battery 1, battery capacity percentage, and the light color and the arrangement of flicker situation of dichromatic LED 40 as shown in table 1 below:

Table 1

Discharge and recharge	Battery capacity percentage	Light color	Flicker
Discharge and recharge	Battery capacity percentage	Light color	Flicker	Charging	0％-100％	Green	Bright entirely
Discharge	0％-10％	Red	Quickflashing	Charging	0％-100％	Green	Bright entirely
Discharge	0％-10％	Red	Quickflashing	Discharge	10％-20％	Red	Slowly dodge
Discharge	20％-50％	Green	Quickflashing	Discharge	10％-20％	Red	Slowly dodge
Discharge	20％-50％	Green	Quickflashing	Discharge	50％-70％	Green	Slowly dodge
Discharge	70％-100％	Do not have	Do not have	Discharge	50％-70％	Green	Slowly dodge

The utility model can allow the user singly be by the light color of observing display lamp and the dump energy that flicker frequency just can be learnt battery thereof, structure of the present utility model is simpler, cost is lower than the method for known employing liquid crystal display, also be restricted (because must use certain software or under certain operating system, operate) in the application, so the utility model is a kind of battery capacity display unit direct, inexpensive and easy to use again unlike the method for known employing software supervision.

Being preferred embodiment of the present utility model only below, is not in order to qualification the utility model, any those skilled in the art, and in not deviating from spirit and scope of the present utility model, any change and the retouching done are all within protection range of the present utility model.

Claims

1. a battery capacity display unit is characterized in that, this display unit comprises:

One display lamp can produce the light of at least two kinds of different colours, in order to show battery meter;

One sensor, in order to the capacity of sensing battery, output one pulse wave signal corresponding to this battery capacity is with a condition indicative signal; And

One signal processing apparatus receives this pulse wave signal and this condition indicative signal, and exports a state pulse wave signal and drive described display lamp, by the light color of this display lamp of control and the capacity that flicker frequency shows this battery.

2. according to the battery capacity display unit of claim 1, it is characterized in that described sensor is a microprocessor.

3. according to the battery capacity display unit of claim 1, it is characterized in that described display lamp is a double-colored light-emitting diode.

4. according to the battery capacity display unit of claim 1, it is characterized in that described signal processing apparatus comprises a not gate and two and door.

5. according to the battery capacity display unit of claim 1, it is characterized in that described state pulse wave signal is for comprising a control frequency signal and a control light color signal, in order to control the color and the flicker frequency of the light that described display lamp sends.