CN111064383A - Air conditioner inverter power supply mutual backup device with alarm function - Google Patents

Air conditioner inverter power supply mutual backup device with alarm function Download PDF

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Publication number
CN111064383A
CN111064383A CN201911141837.7A CN201911141837A CN111064383A CN 111064383 A CN111064383 A CN 111064383A CN 201911141837 A CN201911141837 A CN 201911141837A CN 111064383 A CN111064383 A CN 111064383A
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CN
China
Prior art keywords
power supply
inverter
index display
main body
equipment main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN201911141837.7A
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Chinese (zh)
Inventor
陈立峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Junhong Optical Co Ltd
Original Assignee
Jiaxing Junhong Optical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiaxing Junhong Optical Co Ltd filed Critical Jiaxing Junhong Optical Co Ltd
Priority to CN201911141837.7A priority Critical patent/CN111064383A/en
Publication of CN111064383A publication Critical patent/CN111064383A/en
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/003—Constructional details, e.g. physical layout, assembly, wiring or busbar connections
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/12—Arrangements for reducing harmonics from ac input or output
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K5/00—Casings, cabinets or drawers for electric apparatus
    • H05K5/02—Details
    • H05K5/0213—Venting apertures; Constructional details thereof
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20909—Forced ventilation, e.g. on heat dissipaters coupled to components
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
    • H05K7/20945—Thermal management, e.g. inverter temperature control
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Electromagnetism (AREA)
  • Inverter Devices (AREA)

Abstract

The invention relates to the technical field of inverter power supply mutual backup devices, in particular to an air conditioner inverter power supply mutual backup device with an alarm function, which comprises a base, a device main body and a control panel, wherein the device main body is fixedly arranged at the top of the base, a first index display is arranged on the left side of the base surface of the device main body, a first control button is arranged on the lower side of the first index display, a second index display is arranged on the right side of the first index display, an alarm indicator lamp is arranged on the right side of the second index display, a buzzing alarm is arranged on the right side of the alarm indicator lamp, a second control button is arranged on the lower side of the second index display, the control panel is arranged on the right side of the second control button, the two sides of the device main body are provided with heat dissipation holes, the whole device has a simple structure, can smoothly realize mutual backup when operation fails, and has high stability and practicability, has certain popularization value.

Description

Air conditioner inverter power supply mutual backup device with alarm function
Technical Field
The invention relates to the technical field of inverter power supply mutual backup devices, in particular to an air conditioner inverter power supply mutual backup device with an alarm function.
Background
The reverse process, corresponding to rectification, is defined as inversion, using a thyristor circuit to convert dc power to ac power. For example, in an electric locomotive using thyristors, when the direct current motor is operated as a generator brake in a downhill, the potential energy of the locomotive is converted into electric energy which is transmitted back to the alternating current power grid. For example, in a running DC motor, the motor can be used as a generator to convert the kinetic energy of the motor into electric energy for being transmitted back to the power grid in order to brake rapidly. Under the condition that two inverters are configured, only one inverter works in a normal state, and the other inverter works when a fault occurs, and if the locomotive fails to successfully realize mutual backup during online operation, potential safety hazards exist, so that the problem is improved by the air conditioner inverter power supply mutual backup device with the alarm function.
Disclosure of Invention
The invention aims to provide an air conditioner inverter power supply mutual backup device with an alarm function, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an air conditioner inverter power supply mutual-backup device with an alarm function comprises a base, an equipment main body and a control panel, wherein the top of the base is fixedly provided with the equipment main body, the left side of the base surface of the equipment main body is provided with a first index display, the lower side of the first index display is provided with a first control button, the right side of the first index display is provided with a second index display, the right side of the second index display is provided with an alarm indicator lamp, the right side of the alarm indicator lamp is provided with a buzzing alarm, the lower side of the second index display is provided with a second control button, the right side of the second control button is provided with the control panel, two sides of the equipment main body are provided with radiating holes, the bottom of the inner wall of the equipment main body is sequentially provided with a first inverter, a converter, a master controller, an inverter power supply monitor and a second inverter from left, the back inner wall fixed mounting of equipment main part has radiator fan, the air intake has been seted up to one side that radiator fan is pressed close to in the equipment main part back, radiator fan's right side is kept away from to the inner wall of equipment main part is equipped with temperature sensor, the back downside center department of equipment main part installs interface panel, last direct current input interface and the earth protection interface and the alternating current output interface of being equipped with from a left side to the right side in proper order of interface panel.
Preferably, the dust screen is embedded in the heat dissipation holes and the air inlet.
Preferably, the first index display instrument is electrically connected with the first control button and the inside of the first inverter.
Preferably, the second indicator is electrically connected with the second control button and the inside of the second inverter.
Preferably, the first inverter is electrically connected with the second inverter, the converter, the master controller, the inverter power supply monitor, the direct current input interface, the alternating current output interface, the buzzer alarm, the alarm indicator lamp and the control panel.
Preferably, the control panel is provided with a display and two groups of control knobs, and the control panel is electrically connected with the inside of the cooling fan and the temperature sensor.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the inverter power supply monitor is generally configured by two inverters for supplying power to an air conditioner and a three-phase load on a vehicle, only the first inverter works in a normal state, when the inverter power supply monitor breaks down, the buzzing alarm receives an alarm signal and sends out continuous alarm sound, the alarm indicator lamp begins to flash and needs to be switched to another work, and at the moment, the second inverter is switched to work through the second control button through the main controller, so that the operation of equipment is ensured, and the safety of a person and the equipment is protected.
2. In the invention, the output of the inverter power supply is a pure sine wave with stable frequency and voltage and low distortion degree by adopting the SPWM technology through the arranged converter, and the inverter power supply has strong load carrying capacity and good load compatibility.
3. According to the invention, through the arranged heat dissipation fan and the heat dissipation holes, the working environment temperatures of the first inverter and the second inverter are monitored by the temperature sensors in the equipment main body, and according to the limited temperature value set by the control panel, when the temperature is too high, the heat dissipation fan is controlled to start to work, so that the interior of the equipment main body is ventilated and cooled, the dust screen in the heat dissipation holes can prevent dust from entering the interior of the equipment while heat dissipation is realized, the structure is simple, and the normal working operation of the internal equipment is ensured.
4. In the invention, the AC output interface is connected with the AC input end of the air conditioning unit, and the AC input end adopts the input isolation transformer, so that the inverter power supply is completely isolated from the commercial power, the interference of the commercial power grid is eliminated, and the requirement of an application system for needing a main AC power supply is met.
Drawings
FIG. 1 is an overall front view of the present invention;
FIG. 2 is a schematic view of the overall internal structure of the present invention;
fig. 3 is an overall rear view of the invention.
In the figure: 1-base, 2-equipment body, 3-heat dissipation holes, 4-buzzer alarm, 5-alarm indicator light, 6-first index display instrument, 7-first control button, 8-second index display instrument, 9-second control button, 10-heat dissipation fan, 11-temperature sensor, 12-first inverter, 13-second inverter, 14-converter, 15-master controller, 16-inverter power supply monitor, 17-interface panel, 171-direct current input interface, 172-ground protection interface, 173-alternating current output interface, 18-control panel and 19-air inlet.
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 making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: an air conditioner inverter power supply mutual backup device with an alarm function comprises a base 1, an equipment main body 2 and a control panel 18, wherein the top of the base 1 is fixedly provided with the equipment main body 2, the left side of the base surface of the equipment main body 2 is provided with a first index display instrument 6, the lower side of the first index display instrument 6 is provided with a first control button 7, the first index display instrument 6 is electrically connected with the inside of the first control button 7 and a first inverter 12, the right side of the first index display instrument 6 is provided with a second index display instrument 8, the second index display instrument 8 is electrically connected with the inside of a second control button 9 and a second inverter 13, the right side of the second index display instrument 8 is provided with an alarm indicator lamp 5, the right side of the alarm indicator lamp 5 is provided with a buzzer alarm 4, the lower side of the second index display instrument 8 is provided with a second control button 9, the right side of the second control button 9 is provided with the control panel, the control panel 18 is provided with a display and two groups of control knobs, the control panel 18 is electrically connected with the inside of the cooling fan 10 and the temperature sensor 11, the two sides of the equipment main body 2 are provided with cooling holes 3, the cooling holes 3 and the inside of the air inlet 19 are embedded with a dust screen, the bottom of the inner wall of the equipment main body 2 is sequentially provided with a first inverter 12, a converter 14, a master controller 15, an inverter power supply monitor 16 and a second inverter 13 from left to right, the first inverter 12 is electrically connected with the second inverter 13, the converter 14, the master controller 15, the inverter power supply monitor 16, a direct current input interface 171, an alternating current output interface 173, a buzzing alarm 4, an alarm indicator lamp 5 and the control panel 18 from inside, through the arranged inverter power supply monitor 16, generally, the power supply for an air conditioner and a three-phase load on a vehicle is mainly configured with two, when the inverter power supply monitor 16 breaks down, the buzzer alarm 4 receives the alarm signal and sends out continuous alarm sound, the alarm indicator lamp 5 begins to flash and needs to be switched to another work, at this time, the second inverter 13 is switched to work through the second control button 9 through the main controller 15, the equipment operation is ensured, the safety of human body and equipment is protected, the output of the inverter power supply is a pure sine wave with stable frequency and stable voltage and low distortion degree by adopting the SPWM (sinusoidal pulse Width modulation) technology through the arranged converter 14, the equipment has strong loading capacity and good load compatibility, the inner wall of the back of the equipment main body 2 is fixedly provided with a cooling fan 10, one side of the back of the equipment main body 2 close to the cooling fan 10 is provided with an air inlet 19, the right side of the inner wall of the equipment main body 2 far away from the cooling fan 10 is provided with a temperature sensor 11, and, the temperature sensor 11 in the main body 2 monitors the working environment temperature of the first inverter 12 and the second inverter 13, according to the limited temperature value set by the control panel 18, when the temperature is too high, the cooling fan 10 is controlled to start to ventilate and cool the interior of the main body 2, the dust screen in the cooling hole 3 can prevent dust from entering the interior of the main body 2 while heat is dissipated, the structure is simple, and the normal operation of the internal equipment is ensured, the interface panel 17 is installed at the center of the lower side of the back of the main body 2, the interface panel 17 is sequentially provided with a direct current input interface 171, a grounding protection interface 172 and an alternating current output interface 173 from left to right, the alternating current output interface 173 is connected with the alternating current input end of the air conditioning unit, and the alternating current input end adopts an input isolation transformer, so that the power supply is completely isolated from the commercial, the interference of a mains supply power grid is eliminated, the requirement that an application system needs a main alternating current power supply is met, the whole device is simple in structure, mutual backup is smoothly realized when operation fails, the stability and the practicability are high, and the device has certain popularization value.
The working process of the invention is as follows: when in use, a power supply is accessed through a direct current input interface 171, a first inverter 12 is started through a first control button 7 of an equipment main body 2 to convert direct current into alternating current, the alternating current output interface 173 is connected with an air conditioning unit and an alternating current input end of a three-phase load for power supply, an input isolation transformer is adopted at the alternating current input end to completely isolate an inverter power supply from mains supply, the interference of a mains supply power grid is eliminated, the requirement of an application system on a main alternating current power supply is met, a converter 14 in the equipment main body 2 adopts an SPWM pulse width modulation technology to ensure that the output of the inverter power supply is a pure sine wave with stable frequency and stable voltage and low distortion degree, the inverter has strong loading capacity and good load compatibility, two inverters in the equipment main body 2 are configured, only the first inverter 12 works in a normal state, and when a power supply monitor 16 fails, a buzzer 4 receives an alarm signal to send continuous, the alarm indicator lamp 5 starts to flash and needs to be switched to another work, at this time, the second inverter 13 is switched to work through the second control 9 button through the main controller 15, the operation of the equipment is ensured, the safety of human bodies and the equipment is protected, the heat radiation fan 10 and the heat radiation holes 3 on two sides in the equipment main body 2 are ensured, the working environment temperature of the first inverter 12 and the second inverter 13 is monitored by the temperature sensor 11 in the equipment main body 2, the heat radiation fan 10 is controlled to start to work when the temperature is overhigh according to the limited temperature value set by the control panel 18, the interior of the equipment main body 2 is ventilated and cooled, the dust screen in the heat radiation holes 3 can meet the requirement of heat radiation and simultaneously prevent the interior of dust air inlet equipment, the structure is simple, the normal working operation of the interior equipment is ensured, the structure of the whole device is simple, the mutual backup is successfully realized when, has certain popularization value.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an air conditioner invertion power supply is equipped with device each other with alarming function, includes base (1) and equipment subject (2) and control panel (18), its characterized in that: the top fixed mounting of base (1) has equipment main body (2), the base face left side of equipment main body (2) is equipped with first index display appearance (6), the downside of first index display appearance (6) is equipped with first control button (7), the right side of first index display appearance (6) is equipped with second index display appearance (8), the right side of second index display appearance (8) is equipped with alarm indicator (5), the right side of alarm indicator (5) is equipped with buzzing siren (4), the downside of second index display appearance (8) is equipped with second control button (9), the right side of second control button (9) is equipped with control panel (18), louvre (3) have been seted up to the both sides of equipment main body (2), first inverter (12) have been installed from a left side to the right side in proper order to the inner wall bottom of equipment main body (2), Converter (14), master controller (15), invertion power supply monitor (16), second inverter (13), the back inner wall fixed mounting of equipment main part (2) has radiator fan (10), one side that radiator fan (10) are pressed close to in equipment main part (2) back has seted up air intake (19), the right side that radiator fan (10) were kept away from to the inner wall of equipment main part (2) is equipped with temperature sensor (11), interface panel (17) are installed to the back downside center department of equipment main part (2), be equipped with direct current input interface (171) and ground protection interface (172) and alternating current output interface (173) from a left side to the right side on interface panel (17) in proper order.
2. The air conditioner inverter power supply mutual backup device with the alarm function according to claim 1, characterized in that: and a dustproof net is embedded in the heat dissipation hole (3) and the air inlet (19).
3. The air conditioner inverter power supply mutual backup device with the alarm function according to claim 1, characterized in that: the first index display instrument (6) is electrically connected with the first control button (7) and the inside of the first inverter (12).
4. The air conditioner inverter power supply mutual backup device with the alarm function according to claim 1, characterized in that: and the second indicator (8) is electrically connected with the second control button (9) and the inside of the second inverter (13).
5. The air conditioner inverter power supply mutual backup device with the alarm function according to claim 1, characterized in that: the first inverter (12) is electrically connected with the second inverter (13), the converter (14), the main controller (15), the inverter power supply monitor (16), the direct current input interface (171), the alternating current output interface (173), the buzzer alarm (4), the alarm indicator lamp (5) and the control panel (18) inside.
6. The air conditioner inverter power supply mutual backup device with the alarm function according to claim 1, characterized in that: the control panel (18) is provided with a display and two groups of control knobs, and the control panel (18) is electrically connected with the inside of the cooling fan (10) and the inside of the temperature sensor (11).
CN201911141837.7A 2019-11-20 2019-11-20 Air conditioner inverter power supply mutual backup device with alarm function Withdrawn CN111064383A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911141837.7A CN111064383A (en) 2019-11-20 2019-11-20 Air conditioner inverter power supply mutual backup device with alarm function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911141837.7A CN111064383A (en) 2019-11-20 2019-11-20 Air conditioner inverter power supply mutual backup device with alarm function

Publications (1)

Publication Number Publication Date
CN111064383A true CN111064383A (en) 2020-04-24

Family

ID=70298287

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911141837.7A Withdrawn CN111064383A (en) 2019-11-20 2019-11-20 Air conditioner inverter power supply mutual backup device with alarm function

Country Status (1)

Country Link
CN (1) CN111064383A (en)

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Application publication date: 20200424