CN216530700U - UPS power supply - Google Patents

UPS power supply Download PDF

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Publication number
CN216530700U
CN216530700U CN202122481751.8U CN202122481751U CN216530700U CN 216530700 U CN216530700 U CN 216530700U CN 202122481751 U CN202122481751 U CN 202122481751U CN 216530700 U CN216530700 U CN 216530700U
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Prior art keywords
module
electrically connected
charging
power supply
switch
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CN202122481751.8U
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Chinese (zh)
Inventor
廖金波
邓铭泉
刘玉全
陈冠飞
刘建平
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Mitsubishi Electric Guangzhou Compressor Co Ltd
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Mitsubishi Electric Guangzhou Compressor Co Ltd
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Abstract

The utility model relates to the technical field of power supplies, and discloses a UPS (uninterrupted power supply), which comprises a voltage conversion module, a switch module, a power-off buffer module, a voltage-stabilizing output module, a battery module and a charging module, wherein the voltage conversion module is connected with the switch module; the first end of the switch module is electrically connected with the output end of the voltage conversion module, the second end of the switch module is electrically connected with the first end of the power-off buffering module, and the second end of the power-off buffering module is electrically connected with the input end of the voltage stabilization output module; the third end of the switch module is electrically connected with the output end of the battery module, the input end of the charging module is connected with the mains supply, and the output end of the charging module is electrically connected with the input end of the battery module. This practicality can be in battery operated and the commercial power uninterrupted switching between to the UPS power is chargeable, thereby saves the battery replacement cost.

Description

UPS power supply
Technical Field
The utility model relates to the technical field of power supplies, in particular to a UPS (uninterrupted power supply).
Background
At present, in a mechanical production workshop, equipment is influenced by oil stains and a humid environment for a long time, industrial control products such as a PLC (programmable logic controller) and a servo amplifier connected with the equipment are seriously aged, and the loss of a lithium battery of the equipment is accelerated. Once the power of the equipment is turned off, important parameters of industrial control products can be lost, so that the lithium battery of the equipment can be replaced regularly and frequently to ensure normal production, the replacement cost of the lithium battery is high, and the maintenance cost of the equipment is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model provides a UPS power supply, which can be switched between battery power supply and commercial power supply without interruption, and can be charged, thereby saving the replacement cost of the battery.
In order to solve the above technical problem, the present invention provides a UPS power supply, which includes a voltage conversion module, a switch module, a power-off buffering module, a voltage-stabilizing output module, a battery module, and a charging module; the first end of the switch module is electrically connected with the output end of the voltage conversion module, the second end of the switch module is electrically connected with the first end of the power-off buffering module, and the second end of the power-off buffering module is electrically connected with the input end of the voltage stabilization output module; the third end of the switch module is electrically connected with the output end of the battery module, the input end of the charging module is connected with the mains supply, and the output end of the charging module is electrically connected with the input end of the battery module.
Optionally, the battery module is electrically connected with a voltage monitoring module, and the voltage monitoring module is electrically connected with an output end of the battery module.
Optionally, the voltage monitoring module includes a voltage monitor and a charging switch, the power input terminal of the voltage monitor is electrically connected to the output terminal of the voltage conversion module, the voltage monitor is electrically connected to the output terminal of the battery module, the charging switch is electrically connected to the voltage monitor, the input terminal of the charging module is connected to the mains supply through the charging switch, and the voltage monitor is used for controlling the charging switch to be opened or closed.
Optionally, the UPS power supply further includes a charging notification module, and the charging notification module is configured to output a charging notification signal.
Optionally, the charging notification module includes a power supply and an indicator, and the indicator is connected to the power supply through the charging switch.
Optionally, the UPS power supply further includes a temperature monitoring module and a high temperature alarm module, the high temperature alarm module is electrically connected to the temperature monitoring module, and the temperature monitoring module is configured to monitor the temperature of the UPS power supply.
Optionally, the switch module includes a first relay, a coil of the first relay is electrically connected to the dc output terminal of the device, the first end and the second end of the switch module are normally open contacts of the first relay, and the second end and the third end of the switch module are normally closed contacts of the first relay.
Optionally, the charging switch includes a second relay, a coil of the second relay is electrically connected to the voltage monitor, and an input end of the charging module is electrically connected to the city through a normally open contact of the second relay.
Optionally, the output end of the charging module is electrically connected with the input end of the battery module through a diode.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides a UPS (uninterrupted power supply), which comprises a voltage conversion module, a switch module, a power-off buffer module, a voltage-stabilizing output module, a battery module and a charging module, wherein the voltage conversion module is connected with the switch module; the first end of the switch module is electrically connected with the output end of the voltage conversion module, the second end of the switch module is electrically connected with the first end of the power-off buffering module, and the second end of the power-off buffering module is electrically connected with the input end of the voltage stabilization output module; the third end of the switch module is electrically connected with the output end of the battery module, the input end of the charging module is connected with the mains supply, and the output end of the charging module is electrically connected with the input end of the battery module. The switch module is used for switching the battery power supply and the commercial power supply, and is provided with the power-off buffering module which is used for supplying power at the moment of power-off, so that uninterrupted switching between the battery power supply and the commercial power supply can be realized, thereby preventing important parameters of industrial control products from being lost and ensuring normal production of equipment; the charging module can charge the battery module, and accordingly, the rechargeable UPS can be achieved, and therefore the replacement cost of the battery is saved.
Drawings
FIG. 1 is a schematic diagram of a UPS power supply according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a UPS power circuit according to an embodiment of the present invention.
Wherein the reference numbers are as follows: 1. a voltage conversion module; 2. a switch module; 3. a voltage stabilization output module; 31. a power-off buffering module; 4. a battery module; 5. a charging module; 6. a voltage monitoring module; 7. a charging notification module; 8. a temperature monitoring module; 9. and a high-temperature alarm module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1, the UPS power supply according to the embodiment of the present invention includes a voltage conversion module 1, a switch module 2, a power-off buffering module 31, a regulated output module 3, a battery module 4, and a charging module 5. The first end of switch module 2 is connected with the output of voltage conversion module 1, the second end of switch module 2 is connected with the first end of outage buffer module 31, the second end of outage buffer module 31 is connected with the input of steady voltage output module 3, the third end of switch module 2 is connected with the output of battery module 4, the input of charging module 5 is connected with the commercial power, the output of charging module 5 is connected with the input of battery module 4.
In this embodiment, the UPS power supply can supply power uninterruptedly to industrial control products such as a PLC and a servo amplifier connected to devices in a production plant. The AC input of the UPS power source is electrically connected to mains (AC220V) and the DC input of the UPS power source is electrically connected to the DC output of the device, such as DC 24V. When the device is powered on, DC24V has power on, and when the device is powered off, DC24V has no power on. Specifically, when the equipment is powered off, the battery module 4 in the UPS power supply is used for supplying power; when the device is powered, the DC24 of the device is directly converted to supply power to industrial control products such as a PLC and a servo amplifier, and at this time, the battery module 4 is not discharged, and the battery module 4 can be charged.
Referring to fig. 2, in this embodiment, the voltage conversion module 1 may adopt a DC step-down module, an input end of which is electrically connected to the DC24V of the device, and the DC step-down module is used for step-down and may be selected as an appropriate model according to a required voltage class. Illustratively, a DC voltage reduction module of DC24V to DC10V is employed.
Referring to fig. 2, the switch module 2 includes a first relay CR1, a coil of the first relay CR1 is electrically connected to the DC24V of the device, a first end and a second end of the switch module 2 are normally open contacts of the first relay CR1, and a second end and a third end of the switch module 2 are normally closed contacts of the first relay CR 1.
The switch module 2 is used for switching two power supply modes of the UPS power supply. In the case of power failure of the device, the DC24V is not electrified, the coil of the first relay CR1 is not electrified, and the normally closed contact of the first relay CR1 is closed, so that the battery module 4 is used for supplying power; when the equipment is powered, the DC24V is powered on, the coil of the first relay CR1 is electrified, the normally open contact of the first relay CR1 is switched on, power is supplied by the DC24V of the equipment, and the DC24V power is reduced to be DC10V output from the DC24V through the DC voltage reduction module and then supplied.
Referring to fig. 2, the second terminal of the switch module 2 is electrically connected to the first terminal of the power-off buffering module 31, the power-off buffering module 31 may employ a buffering capacitor C1, the buffering capacitor C1 has a characteristic of storing electric energy, and when the two modes are switched, the buffering capacitor C1 supplies power at the moment of power off, and the uninterrupted switching power on is realized by using the charging and discharging characteristics of the buffering capacitor C1.
Referring to fig. 2, the second end of the power-off buffering module 31 is electrically connected to the input end of the voltage-stabilizing output module 3, the voltage-stabilizing output module 3 may adopt an AMS1117 chip, and the dc voltage flowing through the voltage-stabilizing output module 3 is reduced to DC3.6V and then supplied to industrial control products such as a PLC and an amplifier. The voltage stabilizing output module 3 can realize the functions of stabilizing voltage and reducing voltage and keep stable DC3.6V voltage output.
In this embodiment, the battery module 4 is electrically connected to the voltage monitoring module 6, the voltage monitoring module 6 includes a voltage monitor V1 and a charging switch, the voltage monitor V1 is electrically connected to the output terminal of the battery module 4, the charging switch is electrically connected to the voltage monitor V1, the input terminal of the charging module 5 is connected to the mains supply through the charging switch, and the voltage monitor V1 is used for controlling the on/off of the charging switch.
Referring to fig. 2, specifically, the charging switch includes a second relay CR2, a coil of the second relay CR2 is electrically connected to the voltage monitor V1, and an input terminal of the charging module 5 is electrically connected to the mains through a normally open contact of the second relay CR 2. The voltage monitor V1 can adopt a voltage monitoring table, the voltage monitoring table can monitor the real-time voltage of the battery module 4, when the voltage of the battery module 4 is lower than the discharging lower limit set value, the coil of the second relay CR2 is electrified, the normally open contact of the second relay CR2 is switched on, and the charging module 5 charges the battery module 4. Preferably, the output terminal of the charging module 5 is electrically connected to the input terminal of the battery module 4 through a diode D1.
Further, when it is detected that the battery module 4 reaches the charging upper limit value, the voltage monitor V1 automatically disconnects the coil of the second relay CR2 to supply power, the normally open contact of the second relay CR2 is disconnected, the charging module 5 stops charging the battery module 4, and the voltage monitor V1 enters the monitoring state again. For example, the lower discharge limit setting may be set to DC6V and the upper charge limit may be set to DC7.3V.
It should be noted that, in this embodiment, the power supply input terminal of the voltage monitor V1 is electrically connected to the output terminal of the voltage conversion module 1. When the device is powered on, the DC24V is powered on, the voltage conversion module 1 outputs voltage, and the voltage monitor V1 works, is in a monitoring state, and determines whether to charge the battery module 4; when the equipment is powered off, the DC24V is not electrified, the voltage monitor V1 is not electrified, the voltage monitor V1 does not work at the moment, and the normally open contact of the second relay CR2 is in an open state, so that the battery module 4 cannot be charged. In this regard, automatic charging of the battery modules 4 can be achieved, and it is ensured that charging and discharging of the battery modules 4 are not performed simultaneously, thereby maintaining the safety of the battery modules 4.
In this embodiment, the UPS power supply further includes a charging notification module 7, and the charging notification module 7 is configured to output a charging notification signal. Illustratively, the charge notification module 7 includes a power supply and an indicator connected to the power supply through the normally open contact of the second relay CR 2. The indicating piece can adopt an indicating lamp, a display screen, an alarm or a signal transmitter and the like, the indicating lamp can emit light after being electrified, the display screen can display image and text information after being electrified, the alarm can emit sound after being electrified and can carry out signal prompt through the change of the sound size, the interval length and the like, and the signal transmitter can send a charging notification signal to a terminal monitoring system and the like after being electrified.
In this embodiment, the UPS power supply further includes a temperature monitoring module 8 and a high temperature alarm module 9, the high temperature alarm module 9 is electrically connected to the temperature monitoring module 8, and the temperature monitoring module 8 is configured to monitor the temperature of the UPS power supply. Preferably, the temperature monitoring module 8 may be disposed at a highest temperature rising portion or a portion where a core component of the UPS power supply is located, and the temperature monitoring module 8 monitors a real-time temperature of the UPS power supply and controls the high temperature alarm module 9 to be turned on when an operating temperature exceeds a set temperature, for example, 45 ℃. Illustratively, the high temperature alarm module 9 may employ an audible and visual alarm, a buzzer, etc., so as to implement high temperature alarm. Of course, the high temperature alarm module 9 may also adopt a signal transmitter, and can transmit a high temperature alarm signal to a terminal monitoring system and the like.
In the embodiment of the application, the switch module 2 is used for switching the battery power supply and the commercial power supply, the power-off buffer module 31 is arranged, and the power-off buffer module 31 is used for supplying power at the moment of power-off, so that uninterrupted switching between the battery power supply and the commercial power supply can be realized, thereby preventing important parameters of industrial control products from being lost and ensuring normal production of equipment; the charging module 5 can charge the battery module 4, for which the recharging of the UPS power supply can be realized, thereby saving the battery replacement cost.
The above-mentioned embodiments are provided to further explain the objects, technical solutions and advantages of the present invention in detail, and it should be understood that the above-mentioned embodiments are only examples of the present invention and are not intended to limit the scope of the present invention. It should be understood that any modifications, equivalents, improvements and the like, which come within the spirit and principle of the utility model, may occur to those skilled in the art and are intended to be included within the scope of the utility model.

Claims (9)

1. A UPS power supply is characterized by comprising a voltage conversion module, a switch module, a power-off buffer module, a voltage stabilization output module, a battery module and a charging module;
the first end of the switch module is electrically connected with the output end of the voltage conversion module, the second end of the switch module is electrically connected with the first end of the power-off buffering module, and the second end of the power-off buffering module is electrically connected with the input end of the voltage stabilization output module;
the third end of the switch module is electrically connected with the output end of the battery module, the input end of the charging module is connected with the mains supply, and the output end of the charging module is electrically connected with the input end of the battery module.
2. The UPS power supply of claim 1, wherein the battery module is electrically coupled with a voltage monitoring module, the voltage monitoring module being electrically coupled to an output of the battery module.
3. The UPS of claim 2, wherein the voltage monitoring module comprises a voltage monitor and a charging switch, wherein a power input of the voltage monitor is electrically connected to the output of the voltage conversion module, the voltage monitor is electrically connected to the output of the battery module, the charging switch is electrically connected to the voltage monitor, an input of the charging module is connected to the utility power through the charging switch, and the voltage monitor is used for controlling the charging switch to be turned on or off.
4. The UPS power supply of claim 3, further comprising a charge notification module configured to output a charge notification signal.
5. The UPS power supply of claim 4, wherein the charge notification module comprises a power supply and an indicator, the indicator being coupled to the power supply via the charge switch.
6. The UPS power supply of claim 1, further comprising a temperature monitoring module and a high temperature alarm module, the high temperature alarm module electrically coupled to the temperature monitoring module, the temperature monitoring module configured to monitor a temperature of the UPS power supply.
7. The UPS power supply of claim 1, wherein the switch module includes a first relay having a coil electrically connected to a dc output of a device, wherein the first and second terminals of the switch module are normally open contacts of the first relay, and the second and third terminals of the switch module are normally closed contacts of the first relay.
8. The UPS power supply of claim 3, wherein the charging switch comprises a second relay having a coil electrically connected to the voltage monitor, and wherein the input of the charging module is electrically connected to mains via a normally open contact of the second relay.
9. The UPS power supply of claim 1, wherein the output of the charging module and the input of the battery module are electrically connected by a diode.
CN202122481751.8U 2021-10-14 2021-10-14 UPS power supply Active CN216530700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122481751.8U CN216530700U (en) 2021-10-14 2021-10-14 UPS power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122481751.8U CN216530700U (en) 2021-10-14 2021-10-14 UPS power supply

Publications (1)

Publication Number Publication Date
CN216530700U true CN216530700U (en) 2022-05-13

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ID=81522742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122481751.8U Active CN216530700U (en) 2021-10-14 2021-10-14 UPS power supply

Country Status (1)

Country Link
CN (1) CN216530700U (en)

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