CN220382809U

CN220382809U - Self-managed uninterruptible power supply system

Info

Publication number: CN220382809U
Application number: CN202321521955.2U
Authority: CN
Inventors: 林风杰; 邓轶群; 邱锦冰; 庄伟�
Original assignee: Shenzhen Pushuo Health Culture Technology Co ltd
Current assignee: Shenzhen Pushuo Health Culture Technology Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-01-23
Anticipated expiration: 2033-06-14

Abstract

There is provided a self-managed uninterruptible power supply system comprising: the system comprises an enabling module, an uninterruptible power supply, a secondary power supply module and a time delay module, wherein the uninterruptible power supply is respectively connected with a commercial power and a load, the uninterruptible power supply is provided with a first enabling end and a second enabling end, the first enabling end is connected with the first end of the enabling module, and the second enabling end is connected with the second end of the enabling module; the second power supply module is connected with the enabling module; the delay module is respectively connected with the mains supply and the enabling module, and is used for controlling the uninterrupted power supply to start and enter a standby state during the existence of the mains supply and controlling the uninterrupted power supply to stop working after a time interval after the power of the mains supply is cut off.

Description

Self-managed uninterruptible power supply system

Technical Field

The utility model relates to the technical field of uninterruptible power supplies, in particular to a self-management uninterruptible power supply system.

Background

Many electrical devices (computers, mechanical arms, etc.) cannot be powered down suddenly, otherwise damage to the electrical devices can occur. In order to ensure that the electric equipment can normally operate and prevent the occurrence of a power failure event, an Uninterruptible Power Supply (UPS) is generally adopted nowadays to cope with the power failure. When the power is cut off, the power supply can be seamlessly switched into the UPS, and the UPS supplies power to the electric equipment. However, the UPS cannot be manually controlled such as effective enabling and delayed power supply after being connected to the circuit, so that the UPS is only forced to be in a working state for a long time, and the service lives of the circuit, the battery and the like are affected to a certain extent.

Disclosure of Invention

Aiming at part or all of the problems in the prior art, the application provides a self-management uninterrupted power system which can effectively protect electric equipment which cannot be powered off suddenly, such as a computer, a mechanical arm and the like, and can protect the uninterrupted power supply, so that the service life of a battery is shortened due to long-term discharge of the uninterrupted power supply.

In one embodiment, there is provided a self-managed uninterruptible power supply system comprising: the system comprises an enabling module, an uninterruptible power supply, a secondary power supply module and a time delay module, wherein,

the uninterruptible power supply is respectively connected with the mains supply and the load and is used for supplying power to the load when the mains supply is powered off, and is provided with a first enabling end and a second enabling end, wherein the first enabling end is connected with the first end of the enabling module, and the second enabling end is connected with the second end of the enabling module;

the second power supply module is connected with the enabling module and is used for supplying power to the enabling module during the period of power failure of the commercial power;

the delay module is respectively connected with the mains supply and the enabling module, and is used for controlling the enabling module to connect the first enabling end to the second enabling end during the existence period of the mains supply, enabling the uninterruptible power supply to start and enter a standby state, and controlling the enabling module to disconnect the first enabling end from the second enabling end after a time interval after the power supply is disconnected, and enabling the uninterruptible power supply to stop working.

In one embodiment, the enabling module comprises a relay and a connecting terminal, a first end of the relay is connected with the secondary power supply module, an eighth end of the relay is connected with the time delay module, a third end of the relay is connected with a first end of the connecting terminal, a fourth end of the relay is connected with a second end of the connecting terminal, the first end and the second end of the connecting terminal serve as a first end and a second end of the enabling module respectively,

and during the existence of the mains supply, the relay is attracted, the third end of the relay is connected with the fourth end, so that the first enabling end is connected to the second enabling end, the uninterruptible power supply is started and enters a standby state, after the mains supply is powered off, the relay is released after a time interval, the third end of the relay is disconnected from the fourth end, and the first enabling end is disconnected from the second enabling end, so that the uninterruptible power supply stops working.

In one embodiment, the delay module includes a fourth diode, a seventh capacitor, a fourth resistor, a sixth resistor and a MOS transistor, where an anode of the fourth diode is connected to the mains supply, a cathode of the fourth diode is connected to one end of the seventh capacitor, another end of the seventh capacitor is grounded, one end of the fourth resistor is connected to a connection point of the fourth diode and the seventh capacitor, another end of the fourth resistor is connected to one end of the sixth resistor and a gate of the MOS transistor, another end of the sixth resistor and a source of the MOS transistor are grounded, and a drain of the MOS transistor is connected to the enable module.

In one embodiment, the MOS transistor is an NMOS transistor.

In one embodiment, the secondary power supply module includes a three-terminal rectifying device, a first terminal of the three-terminal rectifying device is connected to the mains supply and the uninterruptible power supply, a second terminal of the three-terminal rectifying device is grounded, and a third terminal of the three-terminal rectifying device is connected to the enabling circuit.

In one embodiment, the self-managed uninterruptible power supply system further includes a power supply induction module and a central processing unit, the power supply induction module is connected with the mains supply and the central processing unit respectively, the central processing unit is connected with the load, the power supply induction module is used for sensing whether the mains supply is powered off, when the mains supply is powered off, a power-off signal is sent to the central processing unit, and the central processing unit controls the load to be powered off or to perform preservation work according to the power-off signal.

In one embodiment, the power supply sensing module includes a zener diode, a sixth capacitor, a third resistor and a fifth resistor, wherein one end of the third resistor is connected with the mains supply, the other end of the third resistor is connected with one end of the fifth resistor, the other end of the fifth resistor is grounded, the zener diode is connected in parallel with the sixth capacitor, a cathode of the zener diode is connected with a connection point of the third resistor and the fifth resistor, and an anode of the zener diode is grounded.

In one embodiment, the self-managed uninterruptible power supply system further includes an ac-dc conversion module, and the ac-dc conversion module is connected to the delay module and/or the power supply sensing module, and is configured to provide dc power to the delay module and/or the power supply sensing module.

In one embodiment, the self-managed uninterruptible power supply system further includes a switching power supply module, the switching power supply module is connected with the mains supply, the uninterruptible power supply, the secondary power supply module and the load are respectively connected, and the switching power supply module is used for converting the mains supply or the uninterruptible power supply into a power supply suitable for the secondary power supply module and the load.

In one embodiment, the load comprises a computer or a robotic arm.

The utility model discloses a self-management's uninterrupted power source system has enabling module and time delay module, can make uninterrupted power source opens in the twinkling of an eye and gets into work standby state when the commercial power exists, after the commercial power cuts off the power supply in time delay is carried out to the load to uninterrupted power source, will after a time interval uninterrupted power source disconnection again, not only can effectively protect the load that the back level can not cut off the power supply suddenly, like computer, arm etc. can protect again uninterrupted power source prevents uninterrupted power source long-term discharge thereby makes battery life reduction, realizes the self-management of system.

Drawings

The following is a brief description of each drawing in the specification:

FIG. 1 is a block diagram of an uninterruptible power supply system for self-management according to an embodiment of the present application;

FIG. 2 is a schematic circuit diagram of an uninterruptible power supply system for self-management according to an embodiment of the present application;

Detailed Description

Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Unless specifically stated otherwise, technical or scientific terms used herein should be taken to have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

Fig. 1 illustrates a self-managed uninterruptible power supply system, comprising: an enable module 114, an uninterruptible power supply 106, a secondary power module 108, and a delay module 116. Referring to fig. 1 and 2, the ups 106 is connected to the mains 102 and the load 112, respectively, and is configured to supply power to the load 112 when the mains 102 is powered off, the ups 106 has a first enable terminal 1061 and a second enable terminal 1062, the first enable terminal 1061 is connected to the first end 1141 of the enable module 114, and the second enable terminal 1062 is connected to the second end 1142 of the enable module 114; the secondary power supply module 108 is connected to the enabling module 114, and is configured to supply power to the enabling module 114 during a period when the mains supply 102 is powered off; the delay module 116 is respectively connected to the utility power 102 and the enable module 114, and is configured to control the enable module 114 to connect the first enable terminal 1061 to the second enable terminal 1062 during the existence of the utility power 102, enable the ups 106 to start and enter a standby state, and control the enable module 114 to disconnect the first enable terminal 1061 from the second enable terminal 1062 after a time interval after the power supply 102 is turned off, so that the ups 106 stops working.

The self-managed ups system disclosed in the present application has an enabling module 114 and a delay module 116, which can enable the ups 106 to be instantly turned on and enter a working standby state when the mains 102 is in existence, delay power supply is performed on the load 112 by the ups 106 after the mains 102 is suddenly powered off, and then the ups 106 is disconnected after a time interval, so that not only the load 112 which cannot be suddenly powered off at the later stage, such as a computer, a mechanical arm, etc., but also the ups 106 can be protected, and long-term discharge of the ups 106 is prevented, thereby reducing the battery life and realizing self management of the system.

In fig. 1, the self-managed ups system further includes a power induction module 120 and a central processor 118, where the power induction module 120 is connected to the mains supply 102 and the central processor 118, and the central processor 118 is connected to the load 112, and the power induction module 120 is configured to sense whether the mains supply 102 is powered off, and when the mains supply 102 is powered off, send a power-off signal to the central processor 118, and the central processor 118 controls the load 112 to be powered off or perform a save operation according to the power-off signal. In this embodiment, the power supply sensing module 120 is connected to the mains supply 102, and is capable of sensing the power failure of the mains supply in time, and controlling the switch or the save operation of the load 112 by the cpu 118, so as to avoid the loss of data of the load.

In this embodiment, the self-managed ups system further includes an ac-dc conversion module 104, where the ac-dc conversion module 104 is connected to the delay module 116 and the power induction module 120, respectively, and is configured to provide dc power to the delay module 116 and the power induction module 120. In this embodiment, the ac-dc conversion module 104 may provide a stable and proper voltage to the delay module 116 and the power sensing module 120.

In this embodiment, the self-managed ups system further includes a switching power module 110, where the switching power module 110 is connected to the mains supply 102, the ups 106, the secondary power supply module 108 and the load 112 are respectively connected to convert the mains supply 102 or the ups 106 into a power suitable for the secondary power supply module 108 and the load 112. In some embodiments, the load 112 comprises a computer or a robotic arm.

In this embodiment, the switching power supply module 110 is further connected to the central processing unit 118, and supplies power to the central processing unit 118.

Referring to fig. 2, the enabling module 114 includes a relay JK1A and a connection terminal, a first end of the relay JK1A is connected to the secondary power supply module 108, an eighth end of the relay JK1A is connected to the delay module 116, a third end of the relay JK1A is connected to the first end of the connection terminal, a fourth end of the relay JK1A is connected to the second end of the connection terminal, the first end and the second end of the connection terminal serve as a first end 1141 and a second end 1142 of the enabling module 114, respectively, during a period when the utility power 102 exists, the relay JK1A is engaged, a third end of the relay JK1A is connected to the fourth end, so that the first enabling end 1061 is connected to the second enabling end 1062, the uninterruptible power supply 106 is started and enters a standby state, after a time interval, the relay JK1A is released, the fourth end of the relay JK1A is disconnected from the fourth end 1061A, and the first end 1062 is enabled to be disconnected from the uninterruptible power supply 106. In this embodiment, the enabling module 114 further includes a third diode, a cathode of which is connected to the first end of the relay JK1A, an anode of which is connected to the eighth end of the relay JK1A, and a fifth capacitor, one end of which is connected to the first end of the relay JK1A, and the other end of which is grounded.

In one embodiment, the delay module 116 includes a fourth diode D4, a seventh capacitor C7, a fourth resistor R4, a sixth resistor R6, and a MOS transistor, where an anode of the fourth diode D4 is connected to the mains 102, a cathode of the fourth diode D4 is connected to one end of the seventh capacitor C7, another end of the seventh capacitor C7 is grounded, one end of the fourth resistor R4 is connected to a connection point between the fourth diode D4 and the seventh capacitor C7, another end of the fourth resistor R4 is connected to one end of the sixth resistor R6 and a gate of the MOS transistor, another end of the sixth resistor R6 and a source of the MOS transistor are grounded, and a drain of the MOS transistor is connected to the enable module 114. In this embodiment, the MOS transistor is an NMOS transistor.

In one embodiment, the secondary power supply module 108 includes a three-terminal rectifying device U1, a first terminal of the three-terminal rectifying device U1 is connected to the mains 102 and the uninterruptible power supply 106, a second terminal of the three-terminal rectifying device U1 is grounded, and a third terminal of the three-terminal rectifying device U1 is connected to the enabling module 114. In some embodiments, the secondary power supply module 108 further includes a second capacitor C2, a first capacitor C1, a first diode D1, a PMOS transistor, a first resistor R1, a second resistor R2, and a second diode D2. One end of the second capacitor C2 is connected to the first end of the three-terminal rectifying device U1, and the other end of the second capacitor C2 is grounded. One end of the first capacitor C1 is connected to the third end of the three-end rectifying device U1, and the other end of the first capacitor C1 is grounded. The anode of the first diode D1 is connected with the third end of the three-end rectifying device U1, and the cathode of the first diode D1 is connected with the source electrode of the PMOS tube. The drain electrode of the PMOS transistor is connected to the cathode of the second diode D2 and the first end of the relay JK1A of the enable module 114, and the gate electrode of the PMOS transistor is connected to one ends of the first resistor R1 and the second resistor R2. The other end of the first resistor R1 is grounded, and the other end of the second resistor R2 is connected to the anode of the second diode D2 and the anode of the fourth diode D4 of the delay module 116.

In one embodiment, the power supply sensing module 120 includes a zener diode DZ1, a sixth capacitor C6, a third resistor R3, and a fifth resistor R5, where one end of the third resistor R3 is connected to the output end of the ac-dc conversion module 104, so as to be connected to the mains supply 102, the other end of the third resistor R3 is connected to one end of the fifth resistor R5, the other end of the fifth resistor R5 is grounded, the zener diode DZ1 is connected in parallel with the sixth capacitor C6, the cathode of the zener diode DZ1 is connected to the connection point of the third resistor R3 and the fifth resistor R5, and the anode of the zener diode DZ1 is grounded. The cathode of the zener diode DZ1 is also connected to the cpu 118, and outputs the power-off signal to the cpu 118.

Referring to fig. 2, the self-managed uninterruptible power supply system of the present application operates as follows. The AC 220V mains 102 provides a DC voltage V1 through an AC-DC conversion (AC-DC) module 104, V1 in this embodiment being 5V. V1 supplies power to the relay JK1A through the second diode D2, and V1 supplies power to the delay module 116 through the fourth diode D4, and the PMOS tube Q1 is turned off through the second resistor R2 in a reverse bias mode. V1 is filled with the seventh capacitor C7 through the fourth diode D4 instantly, the starting voltage is provided for the NMOS tube Q2, the Q2 is conducted, a coil loop of the relay JK1A is connected, the switch is attracted, and the third end and the fourth end of the relay JK1A are connected. And the third and fourth ends of the relay JK1A are connected to the first and second ends of the connection terminal JP1, respectively. The first and second enable terminals 1061 and 1062 of the uninterruptible power supply 106 (UPS) are connected to the first and second ends of the connection terminal JP2, respectively. The connection terminal JP1 is inserted into the connection terminal JP2, so that the first enabling terminal 1061 and the second enabling terminal 1062 of the UPS 106 are connected to be enabled, and the UPS is turned on and enters a standby state.

When the commercial power 102 with 220V alternating current is powered off manually or accidentally, 5V of V1 disappears, and the UPS is in a standby state to replace the commercial power 102 to supply power to the switching power supply, so that the load 112 is not affected by the power failure of the commercial power 102. The grid of the PMOS tube loses reverse bias due to disappearance of V1, the PMOS tube Q1 is conducted, the UPS supplies power to the switching power supply, the three-terminal rectifying device U1 rectifies and reduces the voltage step by step to obtain V2, and the V2 is used for supplying secondary power to the relay JK1A through the first diode D1 and the PMOS tube Q1. Because the fourth diode D4 is not turned on in the reverse direction, the voltage of the seventh capacitor C7 cannot be released quickly, the NMOS transistor Q2 is still kept on, the relay JK1A keeps on until the voltage at two ends of the seventh capacitor C7 is released slowly through the fourth resistor R4 and the sixth resistor R6, the voltage is lower than the on voltage of the NMOSQ2 after a time interval, the NMOS transistor Q2 is turned off, the relay JK1A loses the loop to release the switch, the third end of the relay JK1A is disconnected from the fourth end, so that the first enabling end 1061 and the second enabling end 1062 of the UPS are disconnected, the UPS stops the power supply of the switching power supply and the rear load 112 after the time interval, and the uninterruptible power supply system is normally turned off, thereby realizing self-management of the system. In some embodiments, the time interval is 5-10 minutes.

In some embodiments, V3 may be used as a power-off signal, and when the mains 102 supplies power normally, V1 is divided by the third resistor R3 and the fifth resistor R5, and then the voltage is clamped to be high level (not less than 3.3V) by the zener diode DZ 1. After the mains supply 102 is powered down, V3 is low level (less than or equal to 100 mV), and when V3 is low level, the central processing unit 118 immediately sends a control signal to the load 112, so that the load 112 performs a shutdown or save process. In this embodiment, the self-managed ups system further includes a third capacitor C3 and a fourth capacitor C4, one ends of the third capacitor C3 and the fourth capacitor C4 are connected to the output end of the dc-ac conversion module, and the other ends of the third capacitor C3 and the fourth capacitor C4 are grounded. In this embodiment, the capacitors C1, C2, C3, C4 and C6 are filter capacitors, C7 is a delay capacitor, C5 is a power supply switching buffer capacitor, D1, D2 and D4 are anti-backflow diodes, D3 is a freewheeling diode, R3 and R5 are voltage dividing resistors, DZ1 is a voltage clamping and stabilizing tube, R2 and R4 are MOS tube shock absorbing resistors, R1 is an acceleration resistor of PMOS, and R6 is both an acceleration resistor of NMOS and provides a voltage release channel for C7.

It is also to be understood that the above-described embodiments are merely illustrative of the principles of the present application and that the present application is not limited thereto. Variations and modifications may be made by one of ordinary skill in the art without departing from the spirit and nature of the present application, and such variations and modifications are intended to be included within the scope of the present application. Thus, although the present application has been described with reference to specific examples, those skilled in the art will appreciate that the present application may be embodied in many other forms. Those skilled in the art will also appreciate that the features of the various examples described may be combined with other combinations.

Claims

1. A self-managed uninterruptible power supply system, comprising: an enabling module (114), an uninterruptible power supply (106), a secondary power supply module (108) and a delay module (116), wherein,

the uninterruptible power supply (106) is respectively connected with the mains supply (102) and the load (112) and is used for supplying power to the load (112) when the mains supply (102) is powered off, the uninterruptible power supply (106) is provided with a first enabling end (1061) and a second enabling end (1062), the first enabling end (1061) is connected with the first end (1141) of the enabling module (114), and the second enabling end (1062) is connected with the second end (1142) of the enabling module (114);

the secondary power supply module (108) is connected with the enabling module (114) and is used for supplying power to the enabling module (114) during the power failure of the mains supply (102);

the delay module (116) is respectively connected with the mains supply (102) and the enabling module (114), and is used for controlling the enabling module (114) to connect the first enabling end (1061) to the second enabling end (1062) during the existence of the mains supply (102), enabling the uninterruptible power supply (106) to start and enter a standby state, and controlling the enabling module (114) to disconnect the first enabling end (1061) from the second enabling end (1062) after a time interval after the power supply (102) is powered off, so that the uninterruptible power supply (106) stops working.

2. The self-managed uninterruptible power supply system of claim 1, wherein the enabling module (114) comprises a relay (JK 1A) and a connection terminal, a first end of the relay (JK 1A) is connected with the secondary power supply module (108), an eighth end of the relay (JK 1A) is connected with the delay module (116), a third end of the relay (JK 1A) is connected with the first end of the connection terminal, a fourth end of the relay (JK 1A) is connected with the second end of the connection terminal, the first end and the second end of the connection terminal serve as a first end (1141) and a second end (1142) of the enabling module (114), respectively,

during the existence of the mains supply (102), the relay (JK 1A) is attracted, the third end of the relay (JK 1A) is connected with the fourth end, so that the first enabling end (1061) is connected to the second enabling end (1062), the uninterruptible power supply (106) is started and enters a standby state, after the mains supply (102) is powered off, the relay (JK 1A) is released after a time interval, the third end of the relay (JK 1A) is disconnected with the fourth end, and the first enabling end (1061) is disconnected with the second enabling end (1062), so that the uninterruptible power supply (106) stops working.

3. The self-managed uninterruptible power supply system of claim 1, wherein the delay module (116) comprises a fourth diode (D4), a seventh capacitor (C7), a fourth resistor (R4), a sixth resistor (R6) and a MOS transistor, an anode of the fourth diode (D4) is connected to the mains (102), a cathode of the fourth diode (D4) is connected to one end of the seventh capacitor (C7), the other end of the seventh capacitor (C7) is grounded, one end of the fourth resistor (R4) is connected to a connection point of the fourth diode (D4) and the seventh capacitor (C7), the other end of the fourth resistor (R4) is connected to one end of the sixth resistor (R6) and a gate of the MOS transistor, the other end of the sixth resistor (R6) and a source of the MOS transistor are grounded, and a drain of the MOS transistor is connected to the enable module (114).

4. The self-managed uninterruptible power supply system of claim 3, wherein the MOS transistor is an NMOS transistor.

5. The self-managed uninterruptible power supply system of claim 1, wherein the secondary power supply module (108) comprises a three-terminal rectifying device (U1), a first terminal of the three-terminal rectifying device (U1) being connected to the mains (102) and the uninterruptible power supply (106), a second terminal of the three-terminal rectifying device (U1) being grounded, a third terminal of the three-terminal rectifying device (U1) being connected to the enabling module (114).

6. The self-managed uninterruptible power supply system of claim 1, further comprising a power sense module (120) and a central processor (118), wherein the power sense module (120) is respectively connected to the utility power (102) and the central processor (118), the central processor (118) is connected to the load (112), the power sense module (120) is configured to sense whether the utility power (102) is powered off, and when the utility power (102) is powered off, a power-off signal is sent to the central processor (118), and the central processor (118) controls the load (112) to be powered off or perform a save operation according to the power-off signal.

7. The self-managed uninterruptible power supply system of claim 6, wherein the power supply sensing module (120) comprises a zener diode (DZ 1), a sixth capacitor (C6), a third resistor (R3) and a fifth resistor (R5), one end of the third resistor (R3) is connected to the mains (102), the other end of the third resistor (R3) is connected to one end of the fifth resistor (R5), the other end of the fifth resistor (R5) is grounded, the zener diode (DZ 1) is connected in parallel with the sixth capacitor (C6), a cathode of the zener diode (DZ 1) is connected to a connection point of the third resistor (R3) and the fifth resistor (R5), and an anode of the zener diode (DZ 1) is grounded.

8. The self-managed uninterruptible power supply system of claim 6, further comprising an ac-to-dc conversion module (104), the ac-to-dc conversion module (104) being coupled to the delay module (116) and/or the power sense module (120) for providing dc power to the delay module (116) and/or the power sense module (120).

9. The self-managed uninterruptible power supply system of claim 1, further comprising an ac-to-dc conversion module (104), the ac-to-dc conversion module (104) being coupled to the delay module (116) for providing dc power to the delay module (116).

10. The self-managed uninterruptible power supply system of claim 1, further comprising a switching power supply module (110), the switching power supply module (110) being connected to the utility power (102), the uninterruptible power supply (106), the secondary power supply module (108) and the load (112) being respectively connected for converting the utility power (102) or the uninterruptible power supply (106) to a power supply suitable for the secondary power supply module (108) and the load (112).

11. The self-managed uninterruptible power supply system of claim 1, wherein the load (112) comprises a computer or a robotic arm.