TW542915B - Automatic battery inspection method and its apparatus - Google Patents

Abstract

The present invention relates to an automatic battery inspection method and its apparatus; and particularly, the invention is relates to an apparatus that can detect the battery status and control the charging and discharging in a notebook computer. In the hardware aspect, the invention is integrated with the basic input/output (I/O) system unit of notebook computer such that the battery performance is assured individually by using the first and the second control circuits to control the charging/discharging of battery through the basic input/output (I/O) system unit and by conducting the inspection onto the battery capacity and its charging/discharging status through a two-staged charging/discharging test procedure. Therefore, it is capable of instantly inspecting whether the battery function is normal or not on the production line so as to assure normal and effective power supply operation of the battery without the need of extra time for performing battery inspection. Thus, the product quality is raised.

Description

542915 V. Description of the invention (1) [Technical Field] The present invention relates to an automatic battery detection method and device, and particularly to a test used in a notebook computer to test whether a battery supplied with power can operate normally and effectively. Device. [Background of the Invention]

The battery is one of the important components of all portable electronic products. The performance of the battery often directly affects the convenience of the use of electronic products, especially in notebook computers. This trend is even more obvious. Without a high storage capacity, As long as the battery with long cycle life is used as the power source, the function of the notebook computer is bound to be greatly reduced. In the production process of traditional notebook computers, because there is no step for designing and testing the battery, it is often just to charge the battery in the notebook computer until its display is full and it is regarded as a step to complete the charging. But at this time, is the battery in the laptop computer 100% charged, or its capacity is not enough to charge to 100%, or the battery itself has a problem and cannot be based on the power of the laptop computer? These issues are unknown to the requirements of standard power supply. If there is a problem with the battery performance, you must wait until the buyer uses it to learn about it. This will not only increase maintenance costs, but also cause great damage to the product's goodwill.

Therefore, in order to enable the manufacturer to ensure that the battery installed in the notebook computer can operate normally and effectively before the product leaves the factory, in order to improve the reliability and product quality of the notebook computer battery, one can detect whether the battery can be completely Charging and testing methods to check the quality of its discharge are needed. [Objective and Summary of the Invention] The object of the present invention is to provide a method for controlling the battery of a notebook computer.

Page 4 542915 V. Description of the invention (2) Charge and discharge, used to ensure that the battery can operate normally and effectively before the notebook computer leaves the factory, and can improve the reliability and product quality of the notebook computer battery; Because the notebook computer cannot be determined in advance whether the battery's working condition is stable and the quality is good before leaving the factory, the maintenance trouble and the increase of service cost are caused. In order to achieve the above object, the present invention controls the charging / discharging of the battery by a basic input / output system unit through a connection and control line, and performs a stepwise detection of the working state of the battery during each charging / discharging period. The program includes steps such as testing the battery capacity and a two-stage charge-discharge test program to detect whether the battery's output voltage, output current, body temperature, and charging capacity meet the battery electrical standards to ensure battery performance. Not only can the battery function be detected normally on the production line in real time, but also does not need to spend extra time for battery testing, it can ensure that the battery function of the notebook computer is normal before the product leaves the factory, and achieve the improvement of the overall product quality. [Illustration of the diagram] Fig. 1 is a flow chart for detecting the battery status. Fig. 2 is a circuit diagram for testing the battery status and controlling the battery charge and discharge in a notebook computer. [Example explanation] Please refer to "Fig. 1" for this. The flowchart of detecting the battery status in the invention is shown in the figure. First, the current working status of the battery (such as the output voltage value, output current value, and body temperature of the battery) is detected (step 1 0 1). Send a warning if the condition does not meet a battery electrical standard

542915 V. Description of the invention (3) Message to the display unit of the system device (such as: screen or indicator light) (step 103), for example: a text message “Battery damaged” is displayed on the screen to indicate the battery If the damage is unavailable, then the test is ended (step 10 9). Conversely, if the battery's working status is normal (that is, it meets the battery's electrical standard), a status message corresponding to the battery's normal working status is sent to the display unit, for example: A green light on the screen indicates that the battery's current working status is normal, and then the battery charging status and detection are performed according to the obtained battery capacity (step 10 2); if the capacity is less than 100%, and the number of times the capacity is detected is less than Predetermined number of capacity tests (for example: twice the number of capacity tests), continue to charge the battery (steps 104, 105), and check the capacity again (step 102); if the capacity If it is still less than 100%, repeat steps 104 and 105. If the predetermined number of capacity tests has been reached and the capacity has not reached 100%, a warning message is displayed on the display unit. 103, and determines whether this cell has not be completed, 100% charged. On the contrary, when the battery is 100% charged, the battery discharge detection process is immediately performed, so that the battery starts to supply power to the notebook computer, and at this time, the battery discharge status is also detected (steps 10, 10, 10). 7) The items tested include: battery output voltage value, output current value, body temperature, etc. If these measured values do not meet the battery electrical standards, then send a warning message to the display unit (step 103) to indicate that the battery discharge situation is not up to standard; if the detected values meet the battery electrical standards, judge Whether a predetermined number of test cycles have been completed (the test cycle in this embodiment is twice), if yes, the test can be terminated (steps 10 8 and 10 9), and it is determined that the battery in the notebook computer is normal and 100% charge and discharge, if not

542915

Once inspection to ensure the quality of the battery, then go back to step 102 to carry out the risk. "Figure 2" is a circuit diagram of battery status panel control and battery charge and discharge in a notebook computer. The basic input / output system unit (hereafter / 23 is based on the detection procedure disclosed in "Figure 1". The signal is transmitted through the detection circuit 2 'BIOS 23 can detect the battery status and capacity. When charging, BI 0S 2 3 A control line 2 3 2 turns on the internal switch 25; at the same time, the signal is also sent via the print port 26 through the line input, and the power switch 27 is turned on. Then power supply 29 (AC adapter) 28 and power adapter 29, 281, 271, 251 into the battery 22 through the internal switch 25 to carry out the charging process; and at the same time BI0S 23 will The battery 22 is monitored in real time through the detection line 231, and a test result is sent to the < system device 21 via the data line 2 3 4 and displayed on the display unit of the system device 2 for the operator to review. A charging line will be formed between battery 22 and 22% current. When the battery's discharge status is to be detected, BI 0S 2 3 will transmit a signal via the second control line 2 3 3 via a connection. Port 2 6 (e.g. Ping Connection 槔) sends a control signal (0f) to the power switch 27. At this time, the current flows from the battery 2 2 through the discharge line formed by the lines 2 2 1, 2 4 1 and the supply system device 2 1 operates. The required power; and in the figure, 'the n pole is connected to the charging line 2 7 1 and the p pole is connected to the discharge line 241. The two poles 24 are used to prevent battery discharge when

542915 V. Description of the invention (5) Reverse current flowing to the power switch 27. During the charging and discharging process, if BI 0S 2 3 detects that the battery 2 2 is abnormal, it sends a warning message on the one hand, and sends a message via the first control line 2 3 2 to turn off the internal switch 25, so that the power switch (power swi tch) 2 7 to the battery 22 to open the charging line 271; at the same time, BIOS23 also transmits a signal via the second control line 2 3 3 via the print port 2 6 pairs of power switches (power swi tch) 2 7 A message of opening ((3Π) 1 is issued, and the power supply 29 is used to supply the power required for the operation of the system device 21 to maintain the relevant invitation message Λ The display of the detection result is until the on-site operator comes to deal with it (such as • Remove and replace the abnormal battery) 〇 In the battery movement detection method and device 1 of the present invention, the battery can be charged and discharged during the original production time. Not only can the battery function normally be detected immediately, but it also takes additional time to perform the battery. Testing, validating products Yield before leaving the factory to improve product quality 〇 [Illustration of symbols in the diagram] 21 System device 22 Battery 221 Discharge circuit 23 Basic access system early element 231 Detection circuit 232 First control circuit 233 Second control circuit 24 Diode 25 Internal switch

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542915 V. Description of the invention (6) 26 Connection Chun 27 Power switch 28 Transformer cry 2 91 Charging circuit 2 9 Power supply 241 Discharging circuit 2 5b 27b 28b

Claims (1)

542915 _Case No. 88120235_Year Month and Date__ VI. Scope of patent application 1. An automatic battery detection device is built in a notebook computer to test the performance of a battery that supplies power to the notebook computer system device. It includes: a charging circuit for charging the battery, which has at least an internal switch that can be controlled; a discharging circuit connected between the battery and the system device for allowing the battery to pass through the discharging circuit Discharging the system device; a basic input / output system unit for reading a working state corresponding to the battery charging / discharging and sending a detection result; and a first control circuit for connecting the basic output Input system unit and the internal switch, the basic input / output system unit can control the opening and closing of the internal switch via the first control line. 2. An automatic battery detection device as described in item 1 of the scope of patent applications, wherein the basic input / output system unit is connected to the system device, and is used to display the detection result through a display unit of the system device. 3. An automatic battery detection device as described in item 1 of the scope of patent application, wherein the working state includes the output voltage value of the battery. 4. An automatic battery detection device as described in item 1 of the scope of patent applications, wherein the working state includes an output current value of the battery. 5. An automatic battery detection device as described in item 1 of the scope of patent applications, wherein the working state may be the body temperature of the battery. 6. An automatic battery detection device as described in item 1 of the scope of patent applications, wherein the charging circuit further includes: Page 10 542915 _Case No. 88120235_Year_Month__ VI. Patent application scope-a power supply; and a controllable power switch through a port, a second control line and the basic I / O system unit An automatic battery detection device as described in item 1 of the scope of patent applications, wherein the connection port is a parallel connection port. 8. An automatic battery detection device as described in item 1 of the scope of patent application, which further includes a diode bridged between the charging circuit and the discharging circuit, and the n-pole of the diode and the charging system. When connected, the p-pole is connected to the discharge system to prevent the current flowing from the battery from flowing backward to the charging circuit. 9. An automatic battery detection method, which tests the performance of a battery that supplies power to a notebook computer system device within a predetermined number of detection cycles, and includes: reading a battery unit corresponding to the battery operation with a basic input / output system unit Working state; sending a warning message to the system device by the basic input / output system unit, when the working state does not meet a battery electrical standard; sending a status message to the system device by the basic input / output system unit, in the working state When the battery's electrical standards are met; the battery is charged with a charging circuit when the battery capacity is less than 100%; the battery is discharged from the system device by a discharging circuit, and the battery capacity is When 100% has been reached; 542915 _Case No. 88120235_Year Month__ VI. The scope of the patent application uses this basic input and output system to buy a discharge state corresponding to the battery discharge; and a power supply to provide the system device required Electricity when the discharge state does not meet the battery electrical standards. 10. An automatic battery detection method as described in item 9 of the scope of patent applications, wherein the warning message and the status message are displayed in a display unit of the system device. 11 1. An automatic battery detection method as described in item 10 of the scope of patent application, wherein the display unit is an indicator light. 12 2. An automatic battery detection method as described in item 10 of the scope of patent application, wherein the display unit is a screen. 1 3. An automatic battery detection method as described in item 9 of the scope of patent application, wherein the working state and the discharging state can be the output voltage value of the battery. 14. An automatic battery detection method as described in item 9 of the scope of patent applications, wherein the working state and the discharging state can be output current values of the battery. 15. An automatic battery detection method as described in item 9 of the scope of patent application, wherein the working state and the discharging state can be the body temperature of the battery. 16. An automatic battery detection method as described in item 9 of the scope of patent applications, which further comprises: closing an external switch in the charging circuit with the basic input / output system early control via a second control circuit, The capacity of the battery has reached Page 12 542915 _Case No. 88120235_Year_Month__ VI. When the scope of patent application is 100%; and an internal switch in the charging circuit is closed by the basic input / output system unit via a first control circuit, and The battery is discharged from the battery through the discharge line. 17. An automatic battery detection method as described in item 9 of the scope of patent applications, further comprising: stopping the battery from discharging the system device through the data line through the basic input / output system unit, and not in the discharge state. When the battery electrical standard is met; and turning on the power switch with the basic input / output system unit via the second control line to supply power required by the system device. Page 13