CN219329639U - UPS power supply device - Google Patents
UPS power supply device Download PDFInfo
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- CN219329639U CN219329639U CN202220589731.4U CN202220589731U CN219329639U CN 219329639 U CN219329639 U CN 219329639U CN 202220589731 U CN202220589731 U CN 202220589731U CN 219329639 U CN219329639 U CN 219329639U
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Abstract
The present utility model provides a UPS power supply device, comprising: the device comprises a starting circuit, a storage battery, a UPS controller, a discharge control circuit, a charge control circuit and a charging circuit; the starting circuit is used for controlling the UPS controller to be electrified or powered off so that the UPS power supply device is in a working state or a dormant state; the discharging control circuit is used for controlling the storage battery to discharge according to a first control signal output by the UPS controller; the charging control circuit is used for controlling the charging circuit to charge the storage battery according to a second control signal output by the UPS controller; the controller is used for outputting a first control signal or a second control signal according to the current state of the storage battery; the UPS power supply solves the problems that the UPS power supply in the prior art is usually in a working state of discharging all the time or discharging while charging, reduces the loss of a storage battery and improves the reliability and the safety of the UPS power supply.
Description
Technical Field
The utility model relates to the technical field of power supplies, in particular to a UPS power supply device.
Background
In order to ensure the product performance of the electric equipment, a plurality of electric equipment needs to be provided with a UPS (uninterrupted power supply) so that the electric equipment can still maintain a stable and reliable working state when the conventional commercial power cannot normally supply power. Such as a gate door or a roller shutter door, which is usually required to be kept open or closed in a state of power failure of the utility power, so as to facilitate the ingress and egress of personnel.
At present, a rechargeable storage battery is adopted in the UPS power supply as a standby power supply to provide electric energy for electric equipment, but the UPS power supply is usually in a working state of discharging all the time or discharging while charging, so that the loss of the storage battery is increased, the service life of the battery is shortened, the situation that the standby power supply cannot work normally is caused, and the reliability and the safety of the UPS power supply are reduced.
Disclosure of Invention
Aiming at the defects existing in the prior art, the UPS power supply device provided by the utility model solves the problems that the UPS power supply in the prior art is always in a discharging or discharging working state while charging, reduces the loss of a storage battery and improves the reliability and safety of the UPS power supply.
The present utility model provides a UPS power supply device, comprising: the device comprises a starting circuit, a storage battery, a UPS controller, a discharge control circuit, a charge control circuit and a charging circuit; the input end of the starting circuit is connected with the discharge end of the storage battery, and the output end of the starting circuit is connected with the power end of the UPS controller and used for controlling the UPS controller to be electrified or powered off so as to enable the UPS power supply device to be in a working state or a dormant state; the first end of the discharging control circuit is connected with the discharging end of the storage battery, the second end of the discharging control circuit is connected with a rear-stage load, and the control end of the discharging control circuit is connected with the UPS controller and used for controlling the storage battery to discharge according to a first control signal output by the UPS controller; the input end of the charging control circuit is connected with the UPS controller, and the output end of the charging control circuit is connected with the trigger end of the charging circuit and is used for controlling the charging circuit to charge the storage battery according to a second control signal output by the UPS controller; the first end of the charging circuit is connected with an external power supply when in use, and the second end of the charging circuit is connected with the charging end of the storage battery; the UPS controller is used for outputting a first control signal or a second control signal according to the current state of the storage battery.
Optionally, the discharge control circuit includes: the first resistor, the second resistor, the first triode, the first diode and the first relay; the first end of first resistance with the UPS controller links to each other, the second end of first resistance with the first end of second resistance links to each other, the second end ground connection of second resistance, the base of first triode with the second end of first resistance links to each other, the projecting pole ground connection of first triode, the collecting electrode of first triode with the coil first end of first relay links to each other, the coil second end of first relay links to each other with the power output end, the normally open switch first end of first relay with the discharge end of battery links to each other, the normally open switch second end of first relay links to each other with the back level load, the positive pole of first diode with the coil first end of first relay links to each other, the negative pole of first diode with the coil second end of first relay links to each other.
Optionally, the charging circuit includes: the first control chip, the second diode, the third resistor, the fourth resistor, the first MOS tube and the transformer; the input end of the first control chip is connected with the output end of the charging control circuit, the output end of the first control chip is connected with the cathode of the second diode, the output end of the first control chip is also connected with the first end of the third resistor, the anode of the second diode and the second end of the third resistor are respectively connected with the first end of the fourth resistor, the second end of the fourth resistor is grounded, the grid electrode of the first MOS tube is connected with the first end of the fourth resistor, and the source electrode of the first MOS tube is grounded; the primary side first end of the transformer is connected with the output end of the external power supply, the primary side second end of the transformer is connected with the drain electrode of the first MOS tube, the secondary side first end of the transformer is connected with the charging end of the storage battery, and the secondary side second end of the transformer is grounded.
Optionally, the charging circuit further includes: a first capacitor, a fifth resistor, a third diode and a second capacitor; the first end of the first capacitor and the anode of the third diode are respectively connected with the first end of the secondary side of the transformer, the second end of the first capacitor is connected with the first end of the fifth resistor, the second end of the fifth resistor and the second end of the third diode are respectively connected with the first end of the second capacitor, the first end of the second capacitor is connected with the charging end of the storage battery, and the second end of the second capacitor is grounded.
Optionally, the charging circuit further includes: the first diode, the third capacitor, the first voltage stabilizing chip and the fourth capacitor; the anode of the fourth diode is connected with the third end of the secondary side of the transformer, the cathode of the fourth diode is respectively connected with the first end of the third capacitor and the input end of the first voltage stabilizing chip, the output end of the first voltage stabilizing chip is connected with the first end of the fourth capacitor, and the second end of the third capacitor and the second end of the fourth capacitor are grounded.
Optionally, the starting circuit includes: the starting switch, the sixth resistor, the seventh resistor, the eighth resistor, the second triode and the second control chip; the first end of the starting switch is grounded, the second end of the starting switch is connected with the first end of the sixth resistor, the second end of the sixth resistor is connected with the first end of the seventh resistor and the first end of the eighth resistor respectively, the second end of the seventh resistor is connected with the discharging end of the storage battery, the second end of the eighth resistor is connected with the base electrode of the second triode, the emitter electrode of the second triode is connected with the second end of the seventh resistor, the collector electrode of the second triode is connected with the input end of the second control chip, and the output end of the second control chip is connected with the power supply end of the UPS controller.
Optionally, the starting circuit further includes: the fifth diode, the fifth capacitor, the first inductor and the second voltage stabilizing chip; the cathode of the fifth diode and the first end of the fifth capacitor are respectively connected with the output end of the second control chip, the anode of the fifth diode is connected with the input end of the second voltage stabilizing chip, one end of the first inductor is connected with the second end of the fifth capacitor, the second end of the first inductor is connected with the input end of the second voltage stabilizing chip, and the output end of the second voltage stabilizing chip is connected with the power end of the UPS controller.
Optionally, the power supply device further includes: the input end of the alternating current conversion circuit is connected with the alternating current input end and is used for converting alternating current into direct current; the input end of the precharge circuit is connected with the output end of the alternating current conversion circuit, the output end of the precharge circuit is connected with the input end of the charging circuit, and the control end of the precharge circuit is connected with the UPS controller and used for selecting a matched charging branch circuit to provide input voltage for the charging circuit according to a selection signal of the UPS controller.
Optionally, the precharge circuit includes: a ninth resistor, a tenth resistor, a third triode, a second relay, a PTC element and a second inductor; the first end of the ninth resistor is connected with the UPS controller, the second end of the ninth resistor is connected with the first end of the tenth resistor, the second end of the tenth resistor is grounded, the base electrode of the third triode is connected with the second end of the ninth resistor, the emitter electrode of the third triode is grounded, the collector electrode of the third triode is connected with the first end of the coil of the second relay, the second end of the coil of the second relay is connected with the power supply output end, the first end of the normally open switch of the second relay is connected with the output end of the alternating current conversion circuit, and the second end of the normally open switch of the second relay is the output end of the precharge circuit; the first end of the PTC element is connected with the output end of the alternating current conversion circuit, the second end of the PTC element is connected with the first end of the second inductor, and the second end of the second inductor is connected with the second end of the normally open switch of the second relay.
Optionally, the precharge circuit further comprises: the first energy storage capacitor and the second energy storage capacitor; the first end of the first energy storage capacitor and the first end of the second energy storage capacitor are respectively connected with the second end of the second inductor, and the second end of the first energy storage capacitor and the second end of the second energy storage capacitor are respectively grounded.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model controls the power-on and power-off of the UPS controller through the starting circuit, thereby achieving the purpose of controlling the UPS power supply device to be in a working state or a dormant state, so that the UPS power supply device is in the dormant state when not in use, the UPS power supply is prevented from being in a discharging state all the time, the power consumption of the storage battery is reduced, and the service life of the storage battery is prolonged.
2. The controller in this embodiment outputs a first control signal or a second control signal according to the current state of the storage battery, so that the discharge control circuit controls the storage battery to discharge according to the first control signal, and further, the charge control circuit controls the charge circuit to charge the storage battery according to the second control signal, so that the storage battery is prevented from being in a state of charging and discharging at the same time, the loss of the storage battery is reduced, and the reliability and the safety of the UPS power supply are improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a UPS power supply apparatus according to an embodiment of the present utility model;
fig. 2 is a schematic circuit diagram of a discharge control circuit according to an embodiment of the present utility model;
fig. 3 is a schematic circuit diagram of a charging circuit according to an embodiment of the present utility model;
fig. 4 is a schematic circuit diagram of a starting circuit according to an embodiment of the present utility model;
fig. 5 is a schematic circuit diagram of a precharge circuit according to an embodiment of the present utility model.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
The functional units of the same reference numerals in the examples of the present utility model have the same and similar structures and functions.
Example 1
Fig. 1 is a schematic structural diagram of a UPS power supply apparatus according to an embodiment of the present utility model, and as shown in fig. 1, a UPS power supply apparatus 100 according to the embodiment specifically includes:
a start-up circuit 110, a battery 120, a UPS controller 130, a discharge control circuit 140, a charge control circuit 150, and a charge circuit 160;
the input end of the starting circuit 110 is connected to the discharge end of the storage battery 120, and the output end of the starting circuit 110 is connected to the power end of the UPS controller 130, for controlling the UPS controller 130 to power up or power down, so that the UPS power device is in a working state or a sleep state;
a first end of the discharging control circuit 140 is connected to a discharging end of the storage battery 120, a second end of the discharging control circuit 140 is connected to the rear load 200, and a control end of the discharging control circuit 140 is connected to the UPS controller 130, and is configured to control the storage battery 120 to discharge according to a first control signal output by the UPS controller 130;
an input end of the charging control circuit 150 is connected to the UPS controller 130, and an output end of the charging control circuit 150 is connected to a trigger end of the charging circuit, and is configured to control the charging circuit to charge the storage battery 120 according to a second control signal output by the UPS controller 130;
the first end of the charging circuit is connected with an external power supply 300 when in use, and the second end of the charging circuit is connected with the charging end of the storage battery 120;
the UPS controller is configured to output a first control signal or a second control signal according to a current state of the battery 120.
In this embodiment, the current state of the UPS power source device includes a sleep state and an operating state, and the current state of the storage battery includes a discharge state and a charge state; because the UPS controller is a control center of the whole UPS power supply device, when the UPS controller is electrified, other circuit modules in the UPS power supply device can be controlled to work, so that the UPS power supply device is in a working state; when the UPS controller is powered off, other circuit modules in the UPS power supply device also stop working, so that the UPS power supply device is in a dormant state; therefore, the power-on and power-off of the UPS controller are controlled by the starting circuit, so that the purpose of controlling the UPS power supply device to be in a working state or a dormant state is achieved, the UPS power supply device is in the dormant state when not in use, the power consumption of the storage battery is reduced, and the service life of the storage battery is prolonged.
Further, in this embodiment, when it is detected that the storage battery is currently in a discharge state, the controller turns off the charge control circuit, so that the charge control circuit stops charging the storage battery; when the current electric quantity of the storage battery is detected to be low and in a charging state, the controller cuts off the discharging control circuit to stop discharging of the charging circuit; therefore, the controller in this embodiment outputs the first control signal or the second control signal according to the current state of the storage battery, so that the discharging control circuit controls the storage battery to discharge according to the first control signal, and the charging control circuit controls the charging circuit to charge the storage battery according to the second control signal, so that the storage battery is prevented from being in a state of charging and discharging at the same time, the loss of the storage battery is reduced, and the reliability and the safety of the UPS power supply are improved.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model controls the power-on and power-off of the UPS controller through the starting circuit, thereby achieving the purpose of controlling the UPS power supply device to be in a working state or a dormant state, so that the UPS power supply device is in the dormant state when not in use, the UPS power supply is prevented from being in a discharging state all the time, the power consumption of the storage battery is reduced, and the service life of the storage battery is prolonged.
2. The controller in this embodiment outputs a first control signal or a second control signal according to the current state of the storage battery, so that the discharge control circuit controls the storage battery to discharge according to the first control signal, and further, the charge control circuit controls the charge circuit to charge the storage battery according to the second control signal, so that the storage battery is prevented from being in a state of charging and discharging at the same time, the loss of the storage battery is reduced, and the reliability and the safety of the UPS power supply are improved.
Example two
Fig. 2 is a schematic circuit diagram of a discharge control circuit according to an embodiment of the present utility model, and as shown in fig. 2, the discharge control circuit 140 provided in this embodiment includes:
the first resistor R1, the second resistor R2, the first triode Q1, the first diode D1 and the first relay J1;
the first end of the first resistor R1 is connected with the UPS controller, the second end of the first resistor R1 is connected with the first end of the second resistor R2, the second end of the second resistor R2 is grounded, the base electrode of the first triode Q1 is connected with the second end of the first resistor R1, the emitting electrode of the first triode Q1 is grounded, the collecting electrode of the first triode Q1 is connected with the first end of the coil of the first relay J1, the second end of the coil of the first relay J1 is connected with the power output end, the first end of the normally open switch of the first relay J1 is connected with the discharging end of the storage battery, the second end of the normally open switch of the first relay J1 is connected with the rear load, the anode of the first diode D1 is connected with the first end of the coil of the first relay J1, and the cathode of the first diode D1 is connected with the second end of the coil of the first relay J1.
When the first control signal output by the UPS controller is a high-level signal, the first triode is conducted, the first relay coil is electrified, and the normally open switch is closed, so that the discharging end of the storage battery is connected with a rear-stage load, and the storage battery is used for supplying electric energy for the rear-stage load; conversely, when the UPS controller outputs a low-level signal, the first relay coil is de-energized, and the normally open switch is released, so that the discharge end of the storage battery and the rear-stage load are disconnected from each other, and the storage battery stops supplying electric energy to the rear-stage load.
Example III
Fig. 3 is a schematic circuit diagram of a charging circuit according to an embodiment of the present utility model, and as shown in fig. 3, a charging circuit 160 according to this embodiment specifically includes:
the first control chip U1, the second diode D2, the third resistor R3, the fourth resistor R4, the first MOS tube M1 and the transformer T; the input end of the first control chip U1 is connected with the output end of the charging control circuit, the output end of the first control chip U1 is connected with the cathode of the second diode D2, the output end of the first control chip U1 is also connected with the first end of the third resistor R3, the anode of the second diode D2 and the second end of the third resistor R3 are respectively connected with the first end of the fourth resistor R4, the second end of the fourth resistor R4 is grounded, the grid electrode of the first MOSS tube M1 is connected with the first end of the fourth resistor R4, and the source electrode of the first MOS tube M1 is grounded; the primary side first end of the transformer T is connected with the output end of the external power supply, the primary side second end of the transformer T is connected with the drain electrode of the first MOS tube M1, the secondary side first end of the transformer T is connected with the charging end of the storage battery, and the secondary side second end of the transformer T is grounded.
In this embodiment, the charging circuit further includes: a first capacitor C1, a fifth resistor R5, a third diode D3, and a second capacitor C2; the first end of the first capacitor C1 and the anode of the third diode D3 are respectively connected with the first end of the secondary side of the transformer T, the second end of the first capacitor C1 is connected with the first end of the fifth resistor R5, the second end of the fifth resistor R5 and the second end of the third diode D3 are respectively connected with the first end of the second capacitor C2, the first end of the second capacitor C2 is connected with the charging end of the storage battery, and the second end of the second capacitor C2 is grounded.
It should be noted that, in this embodiment, the 2 pin of the control chip is an input end, the 6 pin is an output end, when the charging control circuit outputs a high level to the 2 pin of the control chip, the 6 pin of the control chip outputs a low level, the first MOS tube is turned off, the primary side of the transformer is powered off, and charging of the storage battery is stopped; when the charging control circuit outputs low level to the 2 pins of the control chip, the 6 pins of the control chip output high level, the first MOS tube is conducted, the primary side of the transformer is electrified, and the output voltage of the first end of the secondary side of the transformer is the charging of the storage battery.
In this embodiment, the charging circuit further includes: the fourth diode D4, the third capacitor C3, the first voltage stabilizing chip U2 and the fourth capacitor C4; the positive pole of fourth diode D4 with the secondary third end of transformer links to each other, the negative pole of fourth diode D4 respectively with third electric capacity C3's first end with the input of first steady voltage chip U2 links to each other, the output of first steady voltage chip U2 with fourth electric capacity C4's first end links to each other, third electric capacity C3's second end with the second ground connection of fourth electric capacity C4.
It should be noted that, through the voltage conversion module formed by the fourth diode, the third capacitor, the first voltage stabilizing chip and the fourth capacitor, the voltage output by the third end of the secondary side of the transformer can be converted into various voltage values of 12V, 5V and the like, so as to provide working voltages for other chips or loads in the UPS voltage.
Example IV
Fig. 4 is a schematic circuit diagram of a starting circuit according to an embodiment of the present utility model; as shown in fig. 4, the start-up circuit includes:
a starting switch Key, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a second triode Q2 and a second control chip U3;
the first end of the starting switch Key is grounded, the second end of the starting switch Key is connected with the first end of the sixth resistor R6, the second end of the sixth resistor R6 is connected with the first end of the seventh resistor R7 and the first end of the eighth resistor R8 respectively, the second end of the seventh resistor R7 is connected with the discharging end of the storage battery, the second end of the eighth resistor R8 is connected with the base electrode of the second triode Q2, the emitter electrode of the second triode Q2 is connected with the second end of the seventh resistor R7, the collector electrode of the second triode Q2 is connected with the input end of the second control chip U3, and the output end of the second control chip U3 is connected with the power supply end of the UPS controller.
In this embodiment, the starting circuit further includes: a fifth diode D5, a fifth capacitor C5, a first inductor C1 and a second voltage stabilizing chip U4; the cathode of the fifth diode D5 and the first end of the fifth capacitor C5 are respectively connected with the output end of the second control chip U3, the anode of the fifth diode D5 is connected with the input end of the second voltage stabilizing chip U4, one end of the first inductor C1 is connected with the second end of the fifth capacitor C5, the second end of the first inductor C1 is connected with the input end of the second voltage stabilizing chip U4, and the output end of the second voltage stabilizing chip U4 is connected with the power supply end of the UPS controller.
When the starting switch is closed, the second triode is conducted, so that the output voltage of the storage battery is input to the power supply end of the UPS controller after passing through the second control chip and the second voltage stabilizing chip, the UPS controller is electrified, and other circuit modules in the UPS power supply device are controlled to work; conversely, when the starting switch is turned off, the second triode is turned off, so that the UPS controller is powered down, and the UPS power supply device is controlled to enter a dormant state.
Example five
In this embodiment, the power supply device further includes: the input end of the alternating current conversion circuit is connected with the alternating current input end and is used for converting alternating current into direct current; the input end of the precharge circuit is connected with the output end of the alternating current conversion circuit, the output end of the precharge circuit is connected with the input end of the charging circuit, and the control end of the precharge circuit is connected with the UPS controller and used for selecting a matched charging branch circuit to provide input voltage for the charging circuit according to a selection signal of the UPS controller.
The input alternating current is rectified into direct current through the alternating current conversion circuit, and input voltage is provided for the charging circuit through the pre-charging circuit, so that the charging circuit charges the storage battery; therefore, the precharge circuit is used for precharging the charging circuit, so that strong charging current generated in the moment of supplying power to the direct-current high-voltage bus in the charging circuit can be avoided, electronic components can be effectively protected, and the safety and reliability of the circuit are improved. Further, the UPS controller in this embodiment controls the precharge circuit to select a matched charging branch to provide the input voltage for the charge circuit according to the input voltage value of the charge circuit, thereby improving precharge and power supply efficiency.
FIG. 5 is a schematic diagram of a precharge circuit according to an embodiment of the present utility model; as shown in fig. 5, the precharge circuit includes:
a ninth resistor R9, a tenth resistor R10, a third triode Q3, a second relay J2, a PTC element, and a second inductance L2; the first end of the ninth resistor R9 is connected with the UPS controller, the second end of the ninth resistor R9 is connected with the first end of the tenth resistor R10, the second end of the tenth resistor R10 is grounded, the base electrode of the third triode Q3 is connected with the second end of the ninth resistor R9, the emitting electrode of the third triode Q3 is grounded, the collecting electrode of the third triode Q3 is connected with the first end of the coil of the second relay J2, the second end of the coil of the second relay J2 is connected with the power output end, the first end of the normally open switch of the second relay J2 is connected with the output end of the alternating current conversion circuit, and the second end of the normally open switch of the second relay J2 is the output end of the precharge circuit; the first end of the PTC element is connected with the output end of the alternating current conversion circuit, the second end of the PTC element is connected with the first end of the second inductor L2, and the second end of the second inductor L2 is connected with the second end of the normally open switch of the second relay J2.
In this embodiment, the precharge circuit further includes: a first energy storage capacitor EX1 and a second energy storage capacitor EX2; the first end of the first energy storage capacitor EX1 and the first end of the second energy storage capacitor EX2 are respectively connected with the second end of the second inductor L2, and the second end of the first energy storage capacitor EX1 and the second end of the second energy storage capacitor EX2 are respectively grounded.
It should be noted that, in this embodiment, when the ac input terminal is powered on, the upsusp controller inputs a low level signal to the base electrode of the third triode Q3, so that the third triode Q3 is turned off, the second relay J2 coil loses power, the charging branch formed by the PTC element and the second inductor L2 is selected to slowly charge the charging circuit, so as to prevent the damage of components caused by strong current impact during power-on, and the PTC element is made of a polymer material, and has a thermal protection function, and an automatic turn-off function when the current is excessive, and an automatic turn-on function when the current is recovered to be normal, so that the PTC element can effectively protect the circuit, prevent the damage of components due to overcurrent, and also can automatically recover without manual intervention. Further, when the upsusp controller detects that the input voltage of the charging circuit is charged to a preset value, the upsusp controller outputs a high-level signal to the base electrode of the third triode Q3 to enable the third triode Q3 to be conducted, and the second relay J2 coil is electrified to be attracted to the normally open switch, so that the output end of the alternating current conversion circuit is selected to directly provide the input voltage for the charging circuit, and the charging or power supply efficiency is improved; the second inductor L2, the first energy storage capacitor EX1 and the second energy storage capacitor EX2 have the function of absorbing current, and can play a role in stabilizing current, the first energy storage capacitor EX1 and the second energy storage capacitor EX2 have the function of storing electric energy, and when alternating current is powered down, the first energy storage capacitor EX1 and the second energy storage capacitor EX2 can release energy to provide working electric energy for a power supply device.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the utility model to enable those skilled in the art to understand or practice the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A UPS power source apparatus, the UPS power source apparatus comprising:
the device comprises a starting circuit, a storage battery, a UPS controller, a discharge control circuit, a charge control circuit and a charging circuit;
the input end of the starting circuit is connected with the discharge end of the storage battery, and the output end of the starting circuit is connected with the power end of the UPS controller and used for controlling the UPS controller to be electrified or powered off so as to enable the UPS power supply device to be in a working state or a dormant state;
the first end of the discharging control circuit is connected with the discharging end of the storage battery, the second end of the discharging control circuit is connected with a rear-stage load, and the control end of the discharging control circuit is connected with the UPS controller and used for controlling the storage battery to discharge according to a first control signal output by the UPS controller;
the input end of the charging control circuit is connected with the UPS controller, and the output end of the charging control circuit is connected with the trigger end of the charging circuit and is used for controlling the charging circuit to charge the storage battery according to a second control signal output by the UPS controller;
the first end of the charging circuit is connected with an external power supply when in use, and the second end of the charging circuit is connected with the charging end of the storage battery;
the UPS controller is used for outputting a first control signal or a second control signal according to the current state of the storage battery.
2. The UPS power supply apparatus of claim 1, wherein the discharge control circuit includes:
the first resistor, the second resistor, the first triode, the first diode and the first relay;
the first end of first resistance with the UPS controller links to each other, the second end of first resistance with the first end of second resistance links to each other, the second end ground connection of second resistance, the base of first triode with the second end of first resistance links to each other, the projecting pole ground connection of first triode, the collecting electrode of first triode with the coil first end of first relay links to each other, the coil second end of first relay links to each other with the power output end, the normally open switch first end of first relay with the discharge end of battery links to each other, the normally open switch second end of first relay links to each other with the back level load, the positive pole of first diode with the coil first end of first relay links to each other, the negative pole of first diode with the coil second end of first relay links to each other.
3. The UPS power supply apparatus of claim 2, wherein the charging circuit includes:
the first control chip, the second diode, the third resistor, the fourth resistor, the first MOS tube and the transformer;
the input end of the first control chip is connected with the output end of the charging control circuit, the output end of the first control chip is connected with the cathode of the second diode, the output end of the first control chip is also connected with the first end of the third resistor, the anode of the second diode and the second end of the third resistor are respectively connected with the first end of the fourth resistor, the second end of the fourth resistor is grounded, the grid electrode of the first MOS tube is connected with the first end of the fourth resistor, and the source electrode of the first MOS tube is grounded;
the primary side first end of the transformer is connected with the output end of the external power supply, the primary side second end of the transformer is connected with the drain electrode of the first MOS tube, the secondary side first end of the transformer is connected with the charging end of the storage battery, and the secondary side second end of the transformer is grounded.
4. The UPS power source apparatus of claim 3, wherein the charging circuit further comprises:
a first capacitor, a fifth resistor, a third diode and a second capacitor;
the first end of the first capacitor and the anode of the third diode are respectively connected with the first end of the secondary side of the transformer, the second end of the first capacitor is connected with the first end of the fifth resistor, the second end of the fifth resistor and the second end of the third diode are respectively connected with the first end of the second capacitor, the first end of the second capacitor is connected with the charging end of the storage battery, and the second end of the second capacitor is grounded.
5. The UPS power source apparatus of claim 4, wherein the charging circuit further comprises:
the first diode, the third capacitor, the first voltage stabilizing chip and the fourth capacitor;
the anode of the fourth diode is connected with the third end of the secondary side of the transformer, the cathode of the fourth diode is respectively connected with the first end of the third capacitor and the input end of the first voltage stabilizing chip, the output end of the first voltage stabilizing chip is connected with the first end of the fourth capacitor, and the second end of the third capacitor and the second end of the fourth capacitor are grounded.
6. The UPS power source apparatus of claim 1, wherein the start-up circuit includes:
the starting switch, the sixth resistor, the seventh resistor, the eighth resistor, the second triode and the second control chip;
the first end of the starting switch is grounded, the second end of the starting switch is connected with the first end of the sixth resistor, the second end of the sixth resistor is connected with the first end of the seventh resistor and the first end of the eighth resistor respectively, the second end of the seventh resistor is connected with the discharging end of the storage battery, the second end of the eighth resistor is connected with the base electrode of the second triode, the emitter electrode of the second triode is connected with the second end of the seventh resistor, the collector electrode of the second triode is connected with the input end of the second control chip, and the output end of the second control chip is connected with the power supply end of the UPS controller.
7. The UPS power source apparatus of claim 6, wherein the start-up circuit further comprises:
the fifth diode, the fifth capacitor, the first inductor and the second voltage stabilizing chip;
the cathode of the fifth diode and the first end of the fifth capacitor are respectively connected with the output end of the second control chip, the anode of the fifth diode is connected with the input end of the second voltage stabilizing chip, one end of the first inductor is connected with the second end of the fifth capacitor, the second end of the first inductor is connected with the input end of the second voltage stabilizing chip, and the output end of the second voltage stabilizing chip is connected with the power end of the UPS controller.
8. The UPS power supply apparatus of claim 1, wherein the power supply apparatus further comprises:
the input end of the alternating current conversion circuit is connected with the alternating current input end and is used for converting alternating current into direct current;
the input end of the precharge circuit is connected with the output end of the alternating current conversion circuit, the output end of the precharge circuit is connected with the input end of the charging circuit, and the control end of the precharge circuit is connected with the UPS controller and used for selecting a matched charging branch circuit to provide input voltage for the charging circuit according to a selection signal of the UPS controller.
9. The UPS power supply apparatus of claim 8, wherein the precharge circuit comprises:
a ninth resistor, a tenth resistor, a third triode, a second relay, a PTC element and a second inductor;
the first end of the ninth resistor is connected with the UPS controller, the second end of the ninth resistor is connected with the first end of the tenth resistor, the second end of the tenth resistor is grounded, the base electrode of the third triode is connected with the second end of the ninth resistor, the emitter electrode of the third triode is grounded, the collector electrode of the third triode is connected with the first end of the coil of the second relay, the second end of the coil of the second relay is connected with the power supply output end, the first end of the normally open switch of the second relay is connected with the output end of the alternating current conversion circuit, and the second end of the normally open switch of the second relay is the output end of the precharge circuit;
the first end of the PTC element is connected with the output end of the alternating current conversion circuit, the second end of the PTC element is connected with the first end of the second inductor, and the second end of the second inductor is connected with the second end of the normally open switch of the second relay.
10. The UPS power supply apparatus of claim 9, wherein the precharge circuit further comprises:
the first energy storage capacitor and the second energy storage capacitor;
the first end of the first energy storage capacitor and the first end of the second energy storage capacitor are respectively connected with the second end of the second inductor, and the second end of the first energy storage capacitor and the second end of the second energy storage capacitor are respectively grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220589731.4U CN219329639U (en) | 2022-03-17 | 2022-03-17 | UPS power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220589731.4U CN219329639U (en) | 2022-03-17 | 2022-03-17 | UPS power supply device |
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| Publication Number | Publication Date |
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| CN219329639U true CN219329639U (en) | 2023-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220589731.4U Active CN219329639U (en) | 2022-03-17 | 2022-03-17 | UPS power supply device |
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| Country | Link |
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| CN (1) | CN219329639U (en) |
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2022
- 2022-03-17 CN CN202220589731.4U patent/CN219329639U/en active Active
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