CN218768083U - All-in-one computer power supply device with uninterrupted power supply function - Google Patents
All-in-one computer power supply device with uninterrupted power supply function Download PDFInfo
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- CN218768083U CN218768083U CN202222758017.6U CN202222758017U CN218768083U CN 218768083 U CN218768083 U CN 218768083U CN 202222758017 U CN202222758017 U CN 202222758017U CN 218768083 U CN218768083 U CN 218768083U
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Abstract
The utility model relates to a computer power supply technical field especially indicates an all-in-one computer power supply unit with uninterrupted power supply function, if the alternating current supplies power, then convert the voltage into the required operating voltage of all-in-one computer through switching power supply circuit, switching power supply circuit charges for a plurality of lithium battery module through the module of charging simultaneously, when switching power supply circuit does not output, then convert into the power supply of lithium battery module, the power supply of lithium battery module through the module of discharging, make the all-in-one computer still can use when not having the alternating current power supply; in addition, after each lithium battery module is charged or when the lithium battery modules are discharged, the controller enables the lithium battery modules with higher voltage to discharge to the lithium battery modules with lower voltage through the charge-discharge balancing module, so that the voltages of the plurality of lithium battery modules tend to be balanced, all the lithium battery modules have higher consistency when in use, and the lithium battery modules with low voltage are prevented from being damaged.
Description
Technical Field
The utility model belongs to the technical field of the computer power supply technique and specifically relates to indicate an all-in-one computer power supply unit with uninterrupted power supply function.
Background
At present, computers such as integrated computers are generally powered by alternating current and are not provided with batteries, so that the computers cannot be used after power failure, and therefore, the use scenes of the computers are greatly limited.
In addition, present Uninterrupted Power Supply (UPS), it has alternating current power supply and battery powered two kinds of power supply mode, however, the battery module is after charging, the uneven condition of voltage can appear in the battery module of difference, therefore the battery module is at the discharge in-process, some battery module voltage that just can appear is low excessively, but the voltage of some battery modules still is in sufficient state, so in the in-process that continues to discharge, just can influence the life-span of the too low battery module of voltage, lead to the life of holistic battery to subtract short, if consequently with present uninterrupted power supply application to the computer, lead to the computer to need often change the battery module easily.
Disclosure of Invention
The utility model discloses problem to prior art provides an all-in-one computer power supply unit with uninterrupted power supply function, increases the uninterrupted power supply function to the all-in-one computer, reduces the restriction of power supply to the use of all-in-one computer to add the charge and discharge balance module in battery charge and discharge control circuit, keep each battery module can keep the unanimity of voltage when charging or discharging, thereby reduce the damage to the battery module.
In order to solve the technical problem, the utility model discloses a following technical scheme: an all-in-one computer power supply device with an uninterrupted power supply function comprises a switching power supply circuit, a battery charge-discharge control circuit and a plurality of lithium battery modules; the input end of the switching power supply circuit is connected with alternating current, and the output end of the switching power supply circuit is connected with an external load; the battery charging and discharging control circuit comprises a controller, an AC power supply closing detection module, a charging module, a discharging module and a charging and discharging balance module; the AC power supply closing detection module is used for detecting whether the input end or the output end of the switching power supply circuit has voltage or not and transmitting a detection result to the controller; the input end of the charging module is connected with the output end of the switching power supply, and the output end of the charging module is connected with the charging ends of the lithium battery modules; the plurality of lithium battery modules are connected with the discharging module, and when the controller receives a signal that the switching power supply circuit does not input or output voltage, the controller enables the lithium battery modules to supply power to an external load through the discharging module; the charge and discharge balancing module is in signal connection with the controller, and the controller keeps the voltages of the lithium battery modules consistent after charging and during discharging through the charge and discharge balancing module.
Preferably, the charge and discharge balancing module comprises a voltage detection unit, the voltage detection unit is in signal connection with the controller, the voltage detection unit is used for detecting the voltage of each lithium battery module and transmitting the detection result to the controller, and the controller controls the lithium battery module with high voltage to transmit the voltage to the lithium battery module with low voltage through the discharge module according to the detection result of the voltage detection unit.
Preferably, the battery charge-discharge control circuit further comprises an overvoltage protection module, an overcurrent protection module and a voltage output control module, and the output end of the switching power supply circuit supplies power to an external load after passing through the overvoltage protection module, the overcurrent protection module and the voltage output control module in sequence; the input end of the charging module is connected with the output end of the overvoltage protection module; and the output end of the discharging module is connected with the input end of the overcurrent protection module.
Preferably, the battery charge and discharge control circuit further comprises a heat dissipation module, the heat dissipation module comprises a fan and a heat dissipation control unit, the heat dissipation control unit comprises a temperature controller and a heating crystal, the temperature controller is connected with the heating crystal and used for detecting the temperature of the heating crystal, the temperature controller and the fan are in signal connection with the controller, and the controller controls the rotating speed of the fan according to a detection signal of the temperature controller.
Preferably, the battery charging and discharging control circuit further comprises an LED prompt module, wherein the LED prompt module comprises a plurality of LED lamps, and the LED lamps are in signal connection with the controller.
Preferably, the battery charging and discharging control circuit further comprises a buzzer, and the buzzer is in signal connection with the controller.
Preferably, the lithium battery module comprises 5 batteries which are sequentially connected in series.
The utility model has the advantages that:
the utility model provides a pair of all-in-one computer power supply unit with uninterrupted power supply function, when supplying power, if the alternating current supplies power, then convert the voltage into the required operating voltage of all-in-one computer through switching power supply circuit, switching power supply circuit charges for a plurality of lithium battery module through the module of charging simultaneously, when switching power supply circuit does not supply power and export, then convert into the power supply of lithium battery module, the lithium battery module supplies power for all-in-one computer through the module of discharging, make the all-in-one computer still can use when not having the alternating current power supply; in addition, after each lithium battery module charges or when the lithium battery module discharges, the controller discharges to the lower lithium battery module of voltage through filling and discharging balance module, makes the voltage of a plurality of lithium battery modules all tend to balance, thereby makes all lithium battery modules have higher uniformity when using, avoids damaging the lithium battery module of low voltage, improves the life of lithium battery module.
Drawings
Fig. 1 is a signal block diagram of the present invention;
fig. 2 is a circuit block diagram of the battery charging/discharging control circuit of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
The power supply device for an all-in-one computer with an uninterruptible power supply function, as shown in fig. 1 to 2, includes a switching power supply circuit, a battery charge and discharge control circuit, and a plurality of lithium battery modules; the input end of the switching power supply circuit is connected with alternating current, and the output end of the switching power supply circuit is connected with an external load; the battery charging and discharging control circuit comprises a controller, an AC power supply closing detection module, a charging module, a discharging module and a charging and discharging balance module; the AC power supply closing detection module is used for detecting whether the input end or the output end of the switching power supply circuit has voltage or not and transmitting a detection result to the controller; the input end of the charging module is connected with the output end of the switching power supply, and the output end of the charging module is connected with the charging ends of the plurality of lithium battery modules; the plurality of lithium battery modules are connected with the discharging module, and when the controller receives a signal that the switching power supply circuit does not input or output voltage, the controller enables the lithium battery modules to supply power to an external load through the discharging module; the charge and discharge balancing module is in signal connection with the controller, and the controller keeps the voltages of the lithium battery modules consistent after charging and during discharging through the charge and discharge balancing module. The switching power supply circuit is in the prior art, has the functions of input rectification, PFC correction, PWM driving, voltage transformation, synchronous rectification and the like, and converts the AC power supply of the commercial power into the power supply voltage of +19V for the all-in-one computer; the controller of the battery charging and discharging control circuit is also the prior art, such as a single chip microcomputer, an embedded controller, a programmable logic controller and the like.
The embodiment applies the uninterrupted power supply function to the power supply of the all-in-one computer, so that the all-in-one computer can be used even under the condition that no alternating current, namely the mains supply, exists. Specifically, when AC power is supplied, the AC power is converted into a working voltage of the integrated computer through the switching power supply circuit, taking +19V as an example, the switching power supply circuit supplies power to the integrated computer and charges a plurality of lithium battery modules with +19V through the charging module, and after charging is completed, the charging and discharging balancing module discharges the lithium battery modules with high voltage to the lithium battery modules with low voltage, so that the voltages of all the lithium battery modules tend to be balanced; when the AC power supply closing detection module detects that no AC power supply exists, the controller enables the plurality of lithium battery modules to discharge through the discharging module, namely DC power supply, the discharging voltage of the lithium battery modules is 12-19V, the working voltage of the all-in-one computer is met, the all-in-one computer can be used continuously under the condition that no external power supply exists, meanwhile, the charging and discharging balancing module enables the lithium battery modules with high voltage to discharge to the lithium battery modules with low voltage, the voltage among the lithium battery modules tends to be balanced, the all-in-one computer is powered, and therefore the use of the lithium battery modules is protected. In this embodiment, can realize the AC or the DC power supply of all-in-one computer, can also make the voltage of each lithium battery module tend to balanced through the charge-discharge balancing module to protect the lithium battery module.
Optionally, the lithium battery module is formed by connecting five 18650 batteries in series.
The all-in-one computer power supply unit with uninterrupted power supply function that this embodiment provided, as fig. 1 to fig. 2, charge and discharge balance module includes voltage detecting unit, voltage detecting unit and controller signal connection, voltage detecting unit are used for detecting the voltage of each lithium battery module and transmit the testing result for the controller, the controller is according to voltage detecting unit's testing result control voltage high lithium battery module for the low lithium battery module of voltage through the module transmission voltage that discharges.
Specifically, as an implementation manner, the voltage detection unit may set a detection resistor for each lithium battery module for the detection resistor, and connect the detection resistor with the controller, so that the controller can monitor the voltage condition of each lithium battery module in time, and then the discharge module discharges the lithium battery module with high voltage to the lithium battery module with low voltage, so that the voltage of each lithium battery module can tend to be balanced.
Further, as shown in fig. 1 to 2, the battery charge and discharge control circuit of the present embodiment further includes an overvoltage protection module, an overcurrent protection module, and a voltage output control module, and an output end of the switching power supply circuit sequentially passes through the overvoltage protection module, the overcurrent protection module, and the voltage output control module to supply power to an external load; the input end of the charging module is connected with the output end of the overvoltage protection module; and the output end of the discharging module is connected with the input end of the overcurrent protection module. Specifically, as shown in fig. 1 to 2, the overvoltage protection module and the overcurrent protection module can be disconnected when the circuit is in overcurrent or overvoltage, so as to protect the lithium battery module and avoid affecting the all-in-one computer serving as the load.
The all-in-one computer power supply unit with uninterrupted power supply function that this embodiment provided, as fig. 1 to fig. 2, battery charge and discharge control circuit still includes heat dissipation module, heat dissipation module includes fan and heat dissipation the control unit, the heat dissipation the control unit is including temperature controller and the crystal that generates heat, the temperature controller is connected with the crystal that generates heat and is used for detecting the temperature of the crystal that generates heat, temperature controller and fan all with controller signal connection, the controller is according to the rotational speed of the detection signal control fan of temperature controller.
Specifically, when the working current of the all-in-one computer is less than 0.1A, the all-in-one computer is in a standby state by default, the controller enables the fan to be turned off at the moment, and when the working current is greater than 0.1A, the fan is turned on and rotates at the lowest speed. Further, the probe of temperature controller is installed at the crystal that generates heat, through the temperature that detects the crystal that generates heat, judge the organism temperature of all-in-one computer, thereby the rotational speed through controller adjustment fan, for example, set up rotational speed adjusting circuit at heat dissipation the control unit, under the control of controller, adjust the rotational speed of fan through rotational speed adjusting circuit, this is prior art, this embodiment is no longer repeated, and, the temperature controller also is prior art with the crystal that generates heat, the crystal that generates heat is installed on the mainboard of all-in-one computer or can more accurately measure the operating temperature's of all-in-one computer position can, this embodiment does not do the restriction. In the embodiment, the all-in-one computer can work at a normal temperature through the heat dissipation module, and the all-in-one computer is prevented from being damaged by high temperature.
The all-in-one computer power supply device with the uninterrupted power supply function, as shown in fig. 1-2, the battery charge and discharge control circuit further comprises an LED prompt module and a buzzer, the LED prompt module comprises a plurality of LED lamps, the LED lamps are in signal connection with the controller, and the buzzer is in signal connection with the controller.
Specifically, LED lamp like red light and green lamp, buzzer through different colours buzz come the suggestion, green lamp is bright during for example the AC power supply, green lamp goes out during the DC power supply, red lamp is bright when the AC power supply just charges for lithium battery module, and the lithium battery module goes out after being full of the electricity red lamp, and during the DC power supply, output voltage is less than 15V, then buzzer regards as alarm signal with short intermittent type nature buzzing. The reminding mode can be set according to actual needs.
The charging module, the discharging module, the AC power supply shutdown detection module, the overvoltage protection module, the overcurrent protection module and the voltage output control module of the lithium battery module of this embodiment are all in the prior art, for example, the AC power supply shutdown detection module, the input or output end of the switching power supply circuit can be connected with the controller through a resistor, when the AC power supply is disconnected, the controller can not detect the voltage signal of the resistor, and can judge that there is no AC power supply, and the DC power supply needs to be converted into, of course, other circuit principles that can realize the same function can be adopted, and like the voltage output control module, a related synchronous rectification circuit or a related filter circuit can be adopted, and the conventional setting is also not repeated in this embodiment.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides an all-in-one computer power supply unit with incessant power supply function which characterized in that: the lithium battery charging and discharging control circuit comprises a switching power supply circuit, a battery charging and discharging control circuit and a plurality of lithium battery modules;
the input end of the switching power supply circuit is connected with alternating current, and the output end of the switching power supply circuit is connected with an external load;
the battery charging and discharging control circuit comprises a controller, an AC power supply closing detection module, a charging module, a discharging module and a charging and discharging balance module;
the AC power supply closing detection module is used for detecting whether the input end or the output end of the switching power supply circuit has voltage or not and transmitting a detection result to the controller;
the input end of the charging module is connected with the output end of the switching power supply, and the output end of the charging module is connected with the charging ends of the lithium battery modules;
the plurality of lithium battery modules are connected with the discharging module, and when the controller receives a signal that the switching power supply circuit does not input or output voltage, the controller enables the lithium battery modules to supply power to an external load through the discharging module;
the charge and discharge balancing module is in signal connection with the controller, and the controller keeps the voltages of the lithium battery modules consistent after charging and during discharging through the charge and discharge balancing module.
2. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the charge and discharge balancing module comprises a voltage detection unit, the voltage detection unit is in signal connection with the controller, the voltage detection unit is used for detecting the voltage of each lithium battery module and transmitting the detection result to the controller, and the controller controls the lithium battery modules with high voltage to transmit the voltage to the lithium battery modules with low voltage through the discharge module according to the detection result of the voltage detection unit.
3. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the battery charging and discharging control circuit also comprises an overvoltage protection module, an overcurrent protection module and a voltage output control module, wherein the output end of the switch power supply circuit supplies power to an external load after passing through the overvoltage protection module, the overcurrent protection module and the voltage output control module in sequence;
the input end of the charging module is connected with the output end of the overvoltage protection module;
and the output end of the discharging module is connected with the input end of the overcurrent protection module.
4. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the battery charging and discharging control circuit further comprises a heat dissipation module, the heat dissipation module comprises a fan and a heat dissipation control unit, the heat dissipation control unit comprises a temperature controller and a heating crystal, the temperature controller is connected with the heating crystal and used for detecting the temperature of the heating crystal, the temperature controller and the fan are in signal connection with the controller, and the controller controls the rotating speed of the fan according to a detection signal of the temperature controller.
5. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the battery charging and discharging control circuit further comprises an LED prompting module, the LED prompting module comprises a plurality of LED lamps, and the LED lamps are in signal connection with the controller.
6. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the battery charging and discharging control circuit further comprises a buzzer, and the buzzer is in signal connection with the controller.
7. The power supply device of the all-in-one computer with the uninterrupted power supply function according to claim 1, characterized in that: the lithium battery module comprises 5 batteries which are sequentially connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758017.6U CN218768083U (en) | 2022-10-18 | 2022-10-18 | All-in-one computer power supply device with uninterrupted power supply function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222758017.6U CN218768083U (en) | 2022-10-18 | 2022-10-18 | All-in-one computer power supply device with uninterrupted power supply function |
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| CN218768083U true CN218768083U (en) | 2023-03-28 |
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| CN202222758017.6U Active CN218768083U (en) | 2022-10-18 | 2022-10-18 | All-in-one computer power supply device with uninterrupted power supply function |
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- 2022-10-18 CN CN202222758017.6U patent/CN218768083U/en active Active
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