CN1300910C - Battery power supply device - Google Patents

Abstract

The invention relates to a battery powered device. It includes a circuit control part, multiple battery electrode interfaces, and a voltage output interface. Each battery supplies power to the circuit control part individually through the corresponding battery electrode interface, and finally outputs a route voltage output interface to supply power after being switched by the circuit control part. When the power supply battery connected to a battery electrode interface is insufficient, the circuit control part will automatically switch to another power supply circuit connected to the battery electrode interface with sufficient power to supply power to the voltage output interface, and synchronously cut off the battery electrode with insufficient power The power supply circuit connected to the interface. Due to the characteristics of multiple batteries connected to the battery-powered device: when any power supply battery is insufficient, the system will automatically switch to another battery for power supply, and synchronously cut off the power supply circuit of the battery with insufficient power, thereby solving the problem of existing Electronic products are often technically interrupted due to insufficient battery power.

Description

A battery powered device

technical field

The invention relates to a battery power supply device, in particular to a battery power supply device for mobile electronic products.

current technology

When the battery in an existing electronic product is in use, when the battery power is insufficient, the electronic product can only be switched off and then replaced with another battery with sufficient power. However, when the battery power is insufficient, the product may automatically power off immediately. , often resulting in forced interruption of operations, and sometimes even loss of important data.

In order to minimize the loss of important data and the loss of sudden forced interruption of operations caused by insufficient battery power, some existing electronic products are also equipped with two batteries, a main battery and a secondary battery. The main battery cannot be replaced. When it is insufficient, the system will remind the user that the battery power is low and switch to the main battery for power supply at the same time, so that it can continue to work for a period of time, but it must be turned off before replacing the secondary battery. Part of the power is charged by the main battery. This design cannot remove and replace the sub-battery with insufficient power in the project of continuing to use the product after the main battery is started. This priority setting cannot fundamentally solve the above-mentioned problems. technical problem.

Contents of the invention

The invention aims to solve the technical problem that the operation of the existing mobile electronic products is often interrupted due to insufficient battery power, and the battery must be replaced when the mobile electronic product is turned off, and at the same time solve the problem that sometimes leads to loss of important data technical problems.

In order to solve the above technical problems, the technical scheme that the present invention takes is:

A battery-powered device, comprising a circuit control part and a battery electrode interface, one end of the battery electrode interface is connected to a corresponding battery, and the other end is electrically connected to a corresponding input electrode on the circuit control part, and there are multiple battery electrode interfaces, each The battery is powered separately through the corresponding battery electrode interface. When the power of the power supply battery connected to any battery electrode interface is insufficient, the circuit control part will automatically switch to the power supply circuit connected to the battery electrode interface with another battery with sufficient power. , and synchronously cut off the power supply circuit connected to the battery electrode interface with insufficient power. The control part will automatically connect the power supply circuit connected to the battery electrode interface to supply power and cut off the power supply circuits connected to all other battery electrode interfaces.

The battery electrode interfaces are left and right.

The battery power supply device is a battery power supply for mobile electronic products.

The mobile electronic products mentioned above refer to the mobile electronic products that can be used normally only by battery power, including laptop computers, palmtop computers, mobile PCs, mobile phones, cordless phones, PDA series, walkie-talkies, cameras, portable miniature TV sets or DVDs Players, radios, walkmans, VCRs, portable projectors or slide projectors or photocopiers or printing equipment, wireless sending or receiving equipment.

The circuit control part can also be replaced by a manual circuit uninterrupted transfer switch. When the power supply battery connected to any battery electrode interface is insufficient, it can be manually switched to another battery with sufficient power through the manual circuit uninterrupted transfer switch. The power supply circuit connected to the battery electrode interface is powered, and the power supply circuit connected to the battery electrode interface with insufficient power is cut off synchronously; The power supply battery can be manually switched to the power supply circuit connected to the battery electrode interface through the manual circuit uninterrupted switch and cut off the power supply circuit connected to all other battery electrode interfaces. At this time, there is sufficient power connected to the other battery electrode interfaces The power supply battery is also in a standby state.

The manual circuit uninterrupted transfer switch includes left and right conductive sheets electrically connected to the same electrode of the left and right battery electrode interfaces and a middle conductive sheet that can slide on the left and right conductive sheets. The length of the middle conductive sheet is Longer than the distance between the left and right conductive sheets, the left and right conductive sheets are respectively electrically connected to the same polarity electrodes of the left and right battery electrode interfaces.

After adopting the above-mentioned technical solution, since the battery power supply device is provided with multiple battery electrode interfaces, multiple batteries can be installed at the same time, so that when any of the batteries that are supplying power appear to be insufficient in battery power, the system will automatically switch to Another battery power supply circuit supplies power, because the system will automatically cut off the battery power supply circuit with insufficient power after switching, so that the battery with insufficient power can be switched off at any time when the other battery is working (that is, before the power of the other battery is fully released). Replacement; Finally, when the other battery runs out, the system automatically switches back to the battery that has been replaced. In this way, if the user feels necessary during the whole process, the mobile electronic product can continue to work continuously without the inconvenience caused by the low power of the battery by constantly replacing the battery with insufficient power, thereby solving the problem of existing mobile electronic products. Often due to insufficient battery power, the mobile electronic product must be replaced when the battery is turned off to interrupt the technical problem of the operation, and at the same time solve the technical problem of important data loss sometimes caused by this.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings.

Fig. 1 is a block diagram of the switching control of the power supply circuit of the present invention.

Fig. 2 is a schematic circuit diagram of the automatic control mode in Embodiment 1 of the present invention.

Fig. 3 is another schematic circuit diagram of the automatic control mode in Embodiment 1 of the present invention.

Fig. 4 is a schematic circuit diagram of the third automatic control mode of the first embodiment of the present invention.

Fig. 5 is a cross-sectional view of the manual circuit uninterrupted transfer switch according to the second embodiment of the present invention.

Detailed ways

As shown in Figure 1: 1. Circuit control part, 2. Left battery electrode interface, 3. Right battery electrode interface, 4. Left switch, 5. Right switch, 6. Left control circuit, 7. Right control circuit, 8. Left battery, 9. Right battery, 10. Voltage output interface, 11. Conductive wires connecting each interface. The circuit control part 1 is composed of a left switch 4 and a right switch 5, a left control circuit 6 and a right control circuit 7. One end of the left battery electrode interface 2 is connected to the left battery 8, and the other end is connected to the left switch 4. The right battery electrode One end of the interface 3 is connected to the right battery 9 and the other end is connected to the right switch 5; The left battery 8 and the right battery 9 are respectively input to the left switch 4 and the right switch 5 of the circuit control part 1 through the left battery electrode interface 2 and the right battery electrode interface 3, and then controlled by the left and right control circuits 6 in the circuit control part 1. After the left and right switches 4 and 5 are regulated accordingly, the left battery 8 and the right battery 9 are always powered by one battery and the other battery is in a standby state through the voltage output interface 10. When any battery power is insufficient, the circuit control part 1 automatically switches the power supply circuit to and connects the switching switch 4 or 5 connected to another battery with sufficient power through the corresponding control circuit 6 or 7 to the voltage output interface 10 uninterrupted Power supply, at this time the circuit control part 1 will also synchronously cut off the switch 5 or 4 connected with the battery with insufficient power. Its working principle is: the cut-off and on of the switch are respectively determined by the output level of the control circuit. When the output level of the control circuit is low, the switch is in the on state; When level is high level, the toggle switch is cut off. When the left battery 8 is electrically connected to the left battery electrode interface 2, the left control circuit 6 outputs a low level to the left switch 4, at this time the left switch 4 is turned on, and after the left switch 4 is turned on, it is divided into two outputs: one Directly output the voltage to the voltage output interface 10, and the other is output to the right control circuit 7, and the right switch 3 is cut off by outputting a high level through the right control circuit 7; when the power of the left battery 8 is insufficient, the level output to the right control circuit 7 At this time, the right control circuit 7 turns on the right switching switch 3, and after the right switching switch 3 is connected, it is also divided into two outputs: one output voltage directly to the voltage output interface 10, and the other output high level to the left Control circuit 6 cuts off left switching switch 2 through left control circuit 6 output high level; The switch 2 is turned on, and the left switching switch 3 is turned on to output voltage to the voltage output interface 10 again.

In this way, when the left battery 8 is used up, the circuit control part 1 automatically switches to the right battery 9 to supply power, and at this moment, the left battery 8 can be replaced at any time when the right battery 9 is working (that is, before the power of the right battery is not fully released). ; At last when the right battery 9 was used up, the system automatically switched back to the left battery 8 for power supply, and the left and right batteries can be used independently. In this way, if the user feels necessary during the whole process, the mobile electronic product can be continuously operated without the inconvenience caused by the lack of battery power in the past by continuously replacing the battery.

The circuit control part 1 can be realized by automatic switching and manual switching:

Embodiment one:

As shown in Figure 2: The circuit is mainly composed of Q201, Q202, Q203, Q204, Q205, Q206 and their peripheral components. Its main function is to complete the power supply switching between the left and right batteries, so that when the mobile electronic product is in use, the power supply from the left battery 8 is switched to the right battery 9, or the right battery 9 is switched back to the left battery 8 to supply power, that is to say Once a certain battery is insufficient in power, the power supply output of the power supply battery with insufficient power is switched to another power supply battery with sufficient power, and the power supply being used by the mobile electronic product will not be interrupted during the switching process.

In the figure, Q201 and Q202 are power switching switches. It can also be said that Q201 is a right switching switch and Q202 is a left switching switch. Their ①, ②, ③ pins are S terminals, ⑤, ⑥, ⑦, ⑧ pins are D terminals, ④ The pin is the control terminal. When the ④ pin is at a high level, the power switch is turned off, that is, the S terminal and the D terminal are closed; when the ④ pin is at a low level, the power switch is turned on, that is, the S terminal and the D terminal are connected. Q203, Q204, Q205, and Q206 are control tubes, which form control circuits 7 and 6 with their peripheral components, respectively controlling the on-off of the right power switch 5 and the left power switch 4, thereby determining the power supply mode. CR221 and CR222 are isolation diodes. CR223 and CR224 are Zener diodes.

When the left battery 8 is connected to the left battery electrode interface 2 but the right battery 9 is not connected, the ④ pin of Q202 is at low level, Q202 is automatically connected, and the voltage is output through ①, ②, ③ pins, and the voltage is divided into two circuits Output: one way directly supplies power to the voltage output interface 10 through CR221, and the other way supplies high level to pin ④ of Q201 through the level control circuit 7. At this time, Q201 is automatically disconnected, and the power supply circuit of the right battery electrode interface 3 is interrupted. At this time Connect the right battery 9 on the right battery electrode interface 3, because the ④ pin of Q201 is still controlled by the high level output by Q202 through the level control circuit 7, so the Q201 switching switch continues to be in the cut-off state, and the right battery on the right battery electrode interface 3 The battery 9 is in a standby state. When the power of the left battery 8 connected to the left battery electrode interface 2 is exhausted, the high level provided by Q202 to the Q201 switching switch ④ pin through the level control circuit 7 disappears, thus converting to a low level, and the Q201 switching switch automatically connects At this time, the right battery 9 on the right battery electrode interface 3 outputs voltage to the ①, ②, ③ pins of Q201, and the voltage is output in two ways: one way directly supplies power to the voltage output interface 10 through CR222, and the other way through the level The control circuit 6 provides a high level to the pin ④ of the Q202, at this time, the Q202 is automatically cut off, and the power supply circuit of the left battery electrode interface 2 is interrupted, thereby avoiding current charging between the left battery 8 and the right battery 9.

Because the voltage output to pin ④ of the control terminal is processed and output by the output voltage after Q201 or Q202 is connected, so when replacing any battery, it does not affect the working state of the other battery, so at this time, the right battery 9 In the state of power supply, the left battery 8 can be removed and replaced with a battery with sufficient power.

When the power of the right battery 9 is insufficient again, the high level provided by Q201 to the Q202 switching switch ④ pin through the level control circuit 6 disappears, thus converting to a low level, and the Q202 switching switch is automatically connected. The left battery 8 on interface 2 outputs voltage to pins ①, ②, and ③ of Q202, and the voltage is also output in two ways: one way directly supplies power to voltage output interface 10 through CR221, and the other way supplies power to Q201 again through level control circuit 7 The ④ pin provides a high level, and now Q201 cuts off automatically again and interrupts the power supply circuit of the right battery 9.

In the same way, by analogy, the voltage output interface 10 always has a switched voltage output, so that if the user feels necessary during the whole process, the mobile electronic product can continue to work without being affected by the previous method by continuously replacing the battery. The inconvenience caused when the battery power is low.

Some mobile electronic products require multiple batteries due to their functions, so that the operator can have more time to avoid replacing batteries more times. Figure 3 is the circuit schematic diagram of three batteries taking turns to supply power.

As shown in Figure 3: the circuit is mainly composed of Q301, Q302, Q303, Q304, Q305, Q306, Q307, Q308, Q309, Q310, Q311, Q312 and their peripheral components. Its main function is to complete the power supply switching between the three batteries, so that when the mobile electronic product is in use, it can be switched from the left battery 8 to the right battery 9, or from the right battery 9 back to the left battery 8, or Switch from the left battery 8 to the third battery 21, or switch from the third battery 21 to the left battery 8... That is to say, once a certain battery is insufficient, the output of the power supply battery with insufficient power is switched to another battery with sufficient power The battery power output of the power supply, the switching process will not cause the power supply being used by the mobile electronic product to be interrupted.

In the figure, Q301, Q302, Q303, and Q304 are power switching switches, their ①, ②, ③ pins are S terminals, ⑤, ⑥, ⑦, ⑧ pins are D terminals, ④ pins are control terminals, when ④ pins are high power Normally, the power switch is turned off, that is, the S terminal and the D terminal are closed; when the ④ pin is low, the power switch is turned on, that is, the S terminal and the D terminal are connected. Q305, Q306, Q307, Q308, Q309, Q310, Q311, and Q312 are control tubes, which form a control circuit with their peripheral components to respectively control the on-off of the power switch, thereby determining the power supply mode. CR321 and CR322 are isolation diodes. CR323 and CR324 are all-sodium diodes.

The switching principle between the left battery 2 and the right battery 3 is the same as that in Figure 2 above, so it will not be described here. Here, the voltage after the output of the left battery 2 and the right battery 3 is controlled by the circuit control part 1 and the third block Switch between the batteries 21, that is to say, when the left battery 2 and the right battery 3 have no power, the circuit control part 1 will switch the output circuit to the third battery 21, when the third battery 21 is used up Then switch back to the left battery 2 or the right battery 3 to supply power. Here Q303 has become the power switching switch of the left battery 2 and the right battery 3 through the circuit control part 1 to control the output voltage, and Q304 is the power switching switch of the third battery 21, and the switching principle is the same as the control process in Fig. 2 .

When the third battery electrode interface 20 is connected with a third battery 21 and the left battery 8 and the right battery 9 have no electricity or are not connected, the ④ pin of Q304 is low level, and Q304 is automatically connected, through ①, ②, ③ pin output voltage, the voltage is output in two ways: one way directly supplies power to the voltage output interface 10 through CR321, and the other way provides high level to pin ④ of Q303 through the level control circuit, at this time Q303 is automatically disconnected, and the The power supply circuit is interrupted, and now the left battery 8 and the right battery 9 are connected, because the ④ pin of Q303 is still controlled by the high level output by Q304 through the level control circuit, so the switch of Q303 continues to be in the cut-off state, and the left battery 8 and the Right battery 9 is all in stand-by state. When the third battery 21 connected to the third battery electrode interface 20 runs out of power, Q304 provides the high level of Q303 switching switch ④ pin through the level control circuit to disappear, thus converting to low level, Q303 switching switch Automatically connected, at this time, the left battery 8 or the right battery 9 outputs voltage to the ①, ②, ③ pins of Q303, and the voltage is divided into two outputs: one is directly powered by CR322 to the voltage output interface 10, and the other is controlled by the level The circuit provides a high level to the ④ pin of Q304, at this time Q304 is automatically cut off, and the power supply circuit of the third battery electrode interface 20 is interrupted, thereby avoiding current pair charging between the third battery 21 and the left battery 8 or the right battery 9.

Because the voltage output to pin ④ of the control terminal is processed and output by the output voltage after Q303 or Q304 is connected, so when any battery is replaced, it does not affect the working status of the other battery, so at this time, any battery In the state of power supply, other batteries can be removed and replaced with batteries with sufficient power.

Similarly, when the power of the left battery 8 and the right battery 9 are insufficient, the high level provided by Q303 to the pin ④ of the Q304 switching switch through the level control circuit disappears, thereby converting to a low level, and the Q304 switching switch is automatically connected At this time, the third battery 21 on the third battery electrode interface 20 outputs voltage to pins ①, ②, and ③ of Q304, and the voltage is also output in two ways: one way directly supplies power to the voltage output interface 10 through CR321, and the other All the way through the level control circuit to provide high level to pin ④ of Q303 again, at this time Q303 is automatically cut off again.

In the same way, by analogy, the voltage output interface 10 always has a switched voltage output, so that if the user feels necessary during the whole process, the mobile electronic product can continue to work without being affected by the previous method by continuously replacing the battery. The inconvenience caused when the battery power is low.

The above is the basic control principle. In different occasions, components can be selected according to the situation. For example, if there is a microprocessor chip in a mobile phone or a laptop computer, it can be completed by letting the microprocessor chip directly output instructions through the program, or you can directly select An electronic toggle switch with two or more switches.

For some products with relatively large working current, relays can be selected to achieve the purpose.

As shown in Figure 4: a relay 16 is installed between the left battery electrode interface 2 and the right battery electrode interface 3, the  pin of the relay 16 is electrically connected to the left battery electrode interface 2, the ⑧ pin is electrically connected to the right battery electrode interface 3, ③④ The pins are electrically connected to the voltage output interface 10, the left battery electrode interface 2 is connected to the left battery 8, and the right battery electrode interface 3 is connected to the right battery 9. Its working principle is: between ① pin and  pin of relay 16, be provided with left electromagnetic coil 18, ⑥ pin and ⑦ pin be provided with right electromagnetic coil 19, wherein ⑦ pin and  pin are grounded; ② pin and ③ pin, ④ A switch 17 is arranged between pin 5 and pin 5, pin 8 and pin 9, pin 10 and pin , and the closing of these switch 17 is determined by the voltage on pin ① and pin ⑥ on the relay 16 respectively. When the left battery 8 and the right battery 9 did not exist, the switch 17 between its ② pin and ③ pin, ④ pin and ⑤ pin was cut-off, and the switch 17 between ⑧ pin and ⑨ pin, ⑩ pin and  pin The toggle switch 17 is on. When the ① pin of the relay 16 had voltage on it, the left electromagnetic coil 18 worked, and the relay 16 connected the switch 17 between the ② pin and the ③ pin and synchronously cut off the switch between the 10 pin and the  pin; when the ① of the relay 16 When the voltage on the pin was not enough, the left electromagnetic coil 18 stopped working, and the switch 17 between the ② pin and the ③ pin would be cut off by the relay 16 and synchronously connect the switch 17 between the ⑩ pin and the  pin to return to the original state. In the same way, when the ⑥ pin of the relay 16 had voltage on it, the right electromagnetic coil 19 worked, and the relay 16 connected the switch 17 between the ④ pin and the ⑤ pin and synchronously cut off the switch 17 between the ⑧ pin and the ⑨ pin; When the voltage on the ⑥ pin of the relay 16 was not enough, the right electromagnetic coil 19 stopped working again, and the relay 16 would cut off the switch 17 between the ④ pin and the ⑤ pin and synchronously connect the switch 17 between the ⑧ pin and the ⑨ pin to recover to the original state. In this way, after the power supply battery is input to the relay 16 through the left battery electrode interface 2 and the right battery electrode interface 3, after being controlled by the relay 16, the output power is supplied to the mobile electronic products through the voltage output interface 10. The left battery 8 and the right battery 9 are always one The battery is supplying power and the other battery is on standby. When any battery power is insufficient, the relay 16 switches the battery power supply circuit with insufficient power to another battery power supply circuit to supply power and cuts off the battery power supply circuit with insufficient power synchronously.

In this way, according to the working principle of the relay 16, when the left battery 8 supplies power through the left battery electrode interface 2, the left battery 8 supplies power in two ways through the ⑧ and ⑨ pins of the relay, and one way supplies power to the ① pin of the relay through R461. At this time, the ① pin The left electromagnetic coil 18 of the relay is energized, the switch 17 between the ⑩ and  pins is disconnected, and the switch 17 of the ② and ③ pins is automatically connected at the same time, and the other road directly supplies power to the ② pin of the relay, because the left electromagnetic coil 18 The switch 17 between the 2. and 3. pins has already worked and is automatically connected, so the left battery 8 supplies power to the voltage output interface 10 through 3. pins. Simultaneously because switch 17 between ⑩,  pin has been disconnected, right battery 9 power supply lines are cut off. When the left battery 8 was insufficient in power, the voltage to the ① pin of the relay disappeared by R461, and now the left electromagnetic coil 18 of the ① pin stopped working, and returned to the original state like this: the switching switch 17 between the ⑩ and  pins returned to the connection On state, 2., 3. switch 17 between pins is disconnected automatically again, and left battery 8 power supply circuits are cut off. If the right battery 9 exists at this time, the right battery 9 passes through the right battery electrode interface 3 and passes through the ⑩ and  pins to supply power in two ways, and one way supplies power to the relay pin ⑥ through R462. At this time, the right electromagnetic coil 19 of the ⑥ pin is energized, and the ⑧ , ⑨ the switch 17 between the pins is disconnected, and the switch 17 between the ④ and ⑤ pins is automatically connected at the same time. The switching switch 17 between is connected automatically, so the right battery 9 supplies power to the voltage output interface 10 through ④ pin. Simultaneously 8, the switch 17 between 9 pins has been disconnected, and the power supply line of the left battery 8 is cut off, thereby guaranteeing that the charging is not carried out between the right battery 9 and the left battery 8. Similarly, when the right battery 9 has insufficient power again, it can be switched back to the left battery 8 for power supply.

In addition, the battery power supply device can be directly arranged on the mobile electronic product, or an independent battery power supply device can be provided to cooperate with the mobile electronic product.

Embodiment two:

As shown in Figure 4, a battery-powered device includes a manual circuit uninterrupted transfer switch 12, a left battery electrode interface 2, and a right battery electrode interface 3, and a conductive sheet is provided at the battery electrode interface end, and the conductive sheet is electrically connected to the battery electrode. The manual circuit uninterrupted changeover switch 12 comprises a left conductive sheet 13 electrically connected with the left battery electrode interface 2, a right conductive sheet 14 electrically connected with the right battery electrode interface 3, and a sliding switch that can slide on the left conductive sheet 13 and the right conductive sheet 14. Middle conductive sheet 15, the length of described middle conductive sheet 15 is slightly longer than the spacing between left conductive sheet 13 and right conductive sheet 14, when middle conductive sheet 15 moves between left and right two conductive sheets like this, middle conductive sheet can be made The sheet 15 realizes uninterrupted connection and conversion between the left and right conductive sheets, so as to realize the uninterrupted conversion and power supply of the power supply.

The specific control process is: a manual circuit uninterrupted transfer switch 12 is set between the left battery electrode interface 2 and the right battery electrode interface 3, the left battery electrode interface 2 is electrically connected to the left conductive sheet 13, and the right battery electrode interface 3 is connected to the right conductive sheet. The sheet 14 is electrically connected, and the voltage output interface 10 is electrically connected to the intermediate potential sheet 15 . When the intermediate potential sheet 15 was displaced from the right contact sheet 14 to the left contact sheet 13, it would be disconnected from the right contact sheet 14 after contacting the left contact sheet 13 for a distance, that is, parallel connection and then disconnection.

This method is simple, but if the backup battery is not replaced in time after receiving the message of low battery power, it is likely to interrupt the power supply of the device, which is suitable for some simple electronic products.

Claims (6)

1. battery powdered device, comprise the circuit control section, the battery electrode interface, battery electrode interface one end connects corresponding battery, the other end is electrically connected with corresponding input electrode on the circuit control section, described battery electrode interface has a plurality of, each battery is powered separately by corresponding battery electrode interface, when the supplying cell power shortage that is connected on arbitrary battery electrode interface, the circuit control section will automatically switch to the power supply circuits power supply that the battery electrode interface that has sufficient electric power battery in addition is connected, and the power supply circuits that are connected by the battery electrode interface of this power shortage synchronously, it is characterized in that, when on all battery electrode interfaces, all not connecting supplying cell, in case be connected with the supplying cell of sufficient electric power on arbitrary battery electrode interface, circuit control part branch connects power supply circuits power supply that this battery electrode interface is connected and the power supply circuits that are connected by other all battery electrode interfaces automatically, and be connected with sufficient electric power this moment again on other battery electrode interface supplying cell also is to be in stand-by state.

2. battery powdered device as claimed in claim 1 is characterized in that: described battery electrode interface is left and right two.

3. battery powdered device as claimed in claim 1 is characterized in that: described battery powdered device is the battery power supply of mobile electronic product.

4. battery powdered device as claimed in claim 3, it is characterized in that: described mobile electronic product is meant the mobile electronic product that relies on powered battery normally to use separately, comprises laptop computer, palmtop PC, mobile PC, mobile phone, cordless telephone, PDA series, intercom, camera, portable minisize television set or video disc player, broadcast receiver, walkman, videocorder, portable projector or slide projector or copying machines or printing device, wireless transmission or receiving equipment.

5. battery powdered device as claimed in claim 1, it is characterized in that: the uninterrupted change over switch of the also available manual circuit of described circuit control section substitutes, when the supplying cell power shortage that is connected on arbitrary battery electrode interface, can be manually switched to the power supply circuits power supply that the battery electrode interface that has sufficient electric power battery in addition is connected by the uninterrupted change over switch of manual circuit, and the power supply circuits that are connected by the battery electrode interface of this power shortage synchronously; When all not connecting supplying cell on all battery electrode interfaces, in case be connected with the supplying cell of sufficient electric power on arbitrary battery electrode interface, can be manually switched to power supply circuits power supply that this battery electrode interface is connected and the power supply circuits that are connected by other all battery electrode interfaces by the uninterrupted change over switch of manual circuit, be connected with sufficient electric power this moment again on other battery electrode interface supplying cell also is to be in stand-by state.

6. battery powdered device as claimed in claim 5, it is characterized in that: the uninterrupted change over switch of described manual circuit comprises left and right conducting strip that the same electrode of left and right battery electrode interface is electrically connected respectively and the middle conducting strip that can slide on left and right conducting strip, the length of conducting strip is longer than the spacing between left and right conducting strip in the middle of described, and described left and right conducting strip is electrically connected respectively with the same polar electric pole of left and right battery electrode interface.

Images