CN218675250U - Air conditioner and power supply detection device thereof - Google Patents

Air conditioner and power supply detection device thereof Download PDF

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Publication number
CN218675250U
CN218675250U CN202222601763.4U CN202222601763U CN218675250U CN 218675250 U CN218675250 U CN 218675250U CN 202222601763 U CN202222601763 U CN 202222601763U CN 218675250 U CN218675250 U CN 218675250U
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China
Prior art keywords
air conditioner
power
control module
transistor
power supply
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CN202222601763.4U
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Chinese (zh)
Inventor
王照群
何振华
林鑫磊
王凤春
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Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Air Conditioner Gen Corp Ltd
Qingdao Haier Air Conditioning Electric Co Ltd
Haier Smart Home Co Ltd
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Application filed by Qingdao Haier Air Conditioner Gen Corp Ltd, Qingdao Haier Air Conditioning Electric Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Air Conditioner Gen Corp Ltd
Priority to CN202222601763.4U priority Critical patent/CN218675250U/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems

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  • Air Conditioning Control Device (AREA)

Abstract

The utility model belongs to the technical field of the power supply detection of air conditioner, concretely relates to air conditioner and power detection device thereof, wherein power detection device includes: at least two groups of photoelectric detection units, wherein at least one group of photoelectric detection units is configured to be arranged adjacent to a commercial power house-entry lamp to sense the on-off state of the commercial power house-entry lamp, and the other groups of photoelectric detection units are configured to be arranged adjacent to other power house-entry lamps to sense the on-off state of the other power house-entry lamps; and the signal output end of each group of photoelectric detection units is used for communicating a main control module of the air conditioner so as to send the on-off states of the commercial power home entry lamp and other power source home entry lamps to the main control module of the air conditioner. Through the technical scheme of the utility model, the host system of air conditioner can detect out whether the air conditioner is in the commercial power supply state, and then improves the reliability to the air conditioner control.

Description

Air conditioner and power supply detection device thereof
Technical Field
The utility model belongs to the technical field of the power supply detection of air conditioner, especially, relate to an air conditioner and power detection device thereof.
Background
An air conditioner is an essential household appliance in hot summer or cold winter, but the power consumption of the air conditioner is also an important aspect. Generally, the air conditioner uses the commercial power, but for large-scale public places such as hospitals and companies, when the commercial power fails, a standby generator needs to be started to supply power, and at this time, the air conditioner occupies most of the power in the circuit, so that the standby power consumption is accelerated, and the available equipment is reduced.
When the commercial power fails, the standby power supply is started, and a user needs to manually operate a button of the remote controller to control the air conditioner to enter an energy-saving state and operate the air conditioner in a low-power-consumption mode. This solution has a problem of poor reliability, for example, when the power supply of the air conditioner is switched from the commercial power to the generator, if the user forgets to operate the remote controller, the air conditioner still operates according to the commercial power mode, and cannot be switched to the low power consumption operation mode.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the present invention is provided to provide an air conditioner and a power detection device thereof, which can overcome the above problems or at least partially solve the above problems, and can detect corresponding signals when the power supply of the air conditioner is switched to other power supplies by the utility power, so that the air conditioner switches the working mode according to the power supply.
Specifically, the utility model provides a power detection device of air conditioner, include:
at least two groups of photoelectric detection units, wherein at least one group of photoelectric detection units is configured to be arranged adjacent to a commercial power house-entry lamp to sense the on-off state of the commercial power house-entry lamp, and the other groups of photoelectric detection units are configured to be arranged adjacent to other power house-entry lamps to sense the on-off state of the other power house-entry lamps;
and the signal output end of each group of photoelectric detection units is used for communicating a main control module of the air conditioner so as to send the on-off states of the commercial power home entry lamp and other power source home entry lamps to the main control module of the air conditioner.
According to the utility model discloses an embodiment still includes control module and communication module, control module connects communication module connects each group photoelectric detection unit's signal output part, communication module is used for the communication connection air conditioner.
According to the utility model discloses an embodiment, communication module is WIFI communication module or bluetooth communication module.
According to the utility model discloses an embodiment, photoelectric detection unit includes photoelectric element and triode, photoelectric element connects the base of triode, control module connects the triode is in order to detect the break-make of triode.
According to the utility model discloses an embodiment, the collecting electrode of triode passes through pull-up resistance and connects power end, projecting pole ground connection, control module connects the collecting electrode of triode.
According to the utility model discloses an embodiment, the power end is connected to the collecting electrode of triode, projecting pole passes through pull-down resistance ground connection, control module connects the projecting pole of triode.
According to an embodiment of the present invention, the photoelectric element is a photodiode, an anode of the photodiode is connected to the power source, and a cathode of the photodiode is connected to the base of the triode.
According to the utility model discloses an embodiment, photoelectric element is photosensitive diode, photosensitive diode's positive pole passes through matching resistance and connects the power end, and negative pole ground connection, the base of triode is connected photosensitive diode's positive pole.
According to the utility model discloses an embodiment, photoelectric element is the photo resistance, the base and the power end of triode are connected to photo resistance's one end, other end ground connection to be provided with matching resistance on the circuit of photo resistance connection power end.
Correspondingly, the utility model also provides an air conditioner, include host system and as above-mentioned any one embodiment the power detection device of air conditioner.
The utility model provides a technical scheme is provided with multiunit photoelectric detection unit in the power detection device of air conditioner, and each group's photoelectric detection unit is neighbouring city entrance lamp and other power entrance lamps respectively and arranges, can respond to the bright state of going out of city power entrance lamp and other power entrance lamps respectively to send the main control module for the air conditioner with the bright state of going out of city power entrance lamp and other power entrance lamps. The lighting and extinguishing state of the commercial power house-entry lamp corresponds to whether commercial power is supplied or not, and the lighting and extinguishing of other power house-entry lamps also correspond to the power supply states of other power supplies respectively, so that data sent by each group of photoelectric detection units to the main control module of the air conditioner can be used as a basis for judging whether the commercial power house-entry lamps are in the commercial power supply state or not.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic diagram illustrating an operation of a power detection device of an air conditioner according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a power detection device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first photodetecting unit according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second photodetecting unit according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a third photodetecting unit according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a fourth photodetecting unit according to an embodiment of the present invention.
Detailed Description
A power detection device of an air conditioner according to an embodiment of the present invention will be described with reference to fig. 1 to 6. In the description of the present embodiments, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise. When a feature "comprises or comprises" a or some of its intended features, this indicates that other features are not excluded and that other features may be further included, unless expressly stated otherwise.
In the description of the present embodiments, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The embodiment provides a power detection device of an air conditioner, as shown in fig. 1, the power detection device comprises n groups of photoelectric detection units, wherein n is a positive integer greater than 1, the ith group of photoelectric detection units is arranged at a position adjacent to an ith power supply house lamp, and a signal output end is connected with the air conditioner. In this embodiment, the number of power supplies is n, and the power supplies may include a commercial power and a backup power supply, where the backup power supply may include a storage battery and/or a generator, the ith power supply is provided with an ith service light, and the ith service light is turned on when the ith power supply operates; and otherwise, the ith household lamp is turned off when the ith power supply stops working.
Each photoelectric detection unit is respectively arranged at the house-entry lamp corresponding to the power supply, can sense the on-off state of the corresponding house-entry lamp and sends the on-off state of the corresponding house-entry lamp to the air conditioner, and the air conditioner can judge whether the air conditioner is in a mains supply state or not according to the on-off state of the house-entry lamp, and if not, the air conditioner is controlled to enter a low power consumption mode so as to reduce the power consumption of the air conditioner.
For example, when the commercial power supplies power to the air conditioner, the commercial power lamp entering the home is in a lighting state, the lamp entering the home of other standby power supplies is in a lighting-off state, the photoelectric detection unit at the commercial power lamp entering the home can detect a corresponding optical signal and send the optical signal to the air conditioner, the main control module of the air conditioner judges that the adopted power supply is the commercial power according to the optical signal detected by the photoelectric detection unit at the commercial power lamp entering the home, and the air conditioner is controlled to work according to the setting of the user so as to meet the requirement of the user.
When power is off, the standby power supply supplies power to the air conditioner, for example, a generator can be adopted to supply power to the air conditioner, at the moment, the commercial power lamp entering the house is in an off state, the lamp entering the house of the generator is in an on state, the photoelectric detection unit at the lamp entering the house of the generator can detect corresponding optical signals and send the optical signals to the air conditioner, the air conditioner judges that the adopted power is the generator according to the optical signals detected by the photoelectric detection unit at the lamp entering the house of the generator, at the moment, the air conditioner is controlled to enter a low power consumption mode, and all other functions of the air conditioner except heating or cooling are turned off, so that the energy consumption of the air conditioner is reduced, and the cruising ability of the generator is improved.
To sum up, the technical scheme of this application makes the master control module of air conditioner can judge whether the air conditioner is in the commercial power supply state according to the signal of each group photoelectric detection unit output to need not through the manual operation remote controller at this in-process, compare with prior art, can improve the reliability of air conditioner control.
It should be understood that, although the power detection device in the above embodiment is applied to an air conditioner, the power detection device is not limited to be only applicable to an air conditioner, and may be applied to other devices with multiple power supplies, for example, household appliances such as a refrigerator and a television, production equipment in a factory such as a machine tool, or medical devices requiring power consumption in a hospital.
In an embodiment, the power detection device of the air conditioner of the present application further includes a control module U1 and a communication module U2, as shown in fig. 2, where the control module U1 may adopt a logic device such as a single chip microcomputer, for example, may adopt a 51 single chip microcomputer. The control module U1 is connected with the communication module U2, wherein the communication module U2 can be a signal line, and can also adopt wireless communication modules such as a Bluetooth module and a WIFI module; when the communication module U2 adopts a signal wire, one end of the signal wire is connected with a pin of the control module U1, and the other end of the signal wire is connected with the air conditioner so as to establish communication connection between the control module U1 and the air conditioner; when the communication module U2 adopts a wireless communication module, the air conditioner is connected through wireless communication so as to establish wireless communication connection between the control module U1 and the air conditioner.
In this embodiment, the control module U1 is connected to the signal output end of each photodetecting unit to receive the detection result of each photodetecting unit. After receiving the output signals of the photoelectric detection units, the control module U1 can judge whether the air conditioner is in the commercial power supply state according to the output signals of the photoelectric detection units, and send the judgment result to the air conditioner, or send the detection result of each photoelectric detection unit to the main control module of the air conditioner, and the main control module of the air conditioner judges whether the air conditioner is in the commercial power supply state according to the output result of each photoelectric detection unit. In this embodiment, the method for determining whether the system is in the commercial power supply state according to the output signal of each photoelectric detection unit is as follows: when the photoelectric detection unit at the commercial power house-entering lamp detects the optical signal, the air conditioner is in a commercial power supply state, otherwise, the air conditioner is in a non-commercial power supply state.
In one embodiment, the photo-detection unit comprises a corresponding photoelectric element and a triode, wherein the photoelectric element is arranged at a position close to the corresponding power house lamp and is connected with the base of the triode, and when the photoelectric element detects the light signal, the voltage of the base of the triode can be changed, so that the triode is triggered or switched off. The control module U1 is connected with the triode, when the triode is triggered or turned off, the control module U1 can detect corresponding signals to judge the state of the triode, and due to the fact that the corresponding relation exists between the state of the triode and the on-off state of the corresponding household lamp, the on-off state of the corresponding household lamp can be judged according to the state of the triode, and then the power supply state of the corresponding power supply is obtained.
In an embodiment, the aforementioned optoelectronic element is a photodiode, taking a jth photodetecting unit as an example, and assuming that the photodiode of the jth photodetecting unit is disposed at the commercial power lamp, a circuit of the jth photodetecting unit includes a photodiode Dj and a transistor Tj as shown in fig. 3, wherein an anode of the photodiode Dj is connected to a power supply terminal VCC, and a cathode of the photodiode Dj is connected to a base of the transistor Tj through a current limiting resistor R1 j. The collector of the triode Tj is connected with a power supply terminal VCC through a pull-up resistor R2j, the emitter of the triode Tj is grounded, and one pin of the control module U1 is connected with the collector of the triode Tj through a current-limiting resistor R3 j. When the commercial power does not supply power to the air conditioner, the j-th house lamp is turned off, the photosensitive diode Dj is in a cut-off state, so that the connection between the power supply end VCC and the triode Tj is disconnected, and the base of the triode Tj is in a suspended state, so that the triode Tj cannot be triggered and is in a cut-off state. When the commercial power supplies power to the air conditioner, the jth house lamp is lightened, the photosensitive diode Dj is triggered by sensing light and is in a conducting state, so that the power supply end VCC is connected with the base electrode of the triode Tj, the potential of the base electrode of the triode Tj is increased, and the triode Tj can be triggered and is in the conducting state.
When the triode Tj is in a cut-off state, a corresponding pin on the control module U1 is connected with a power supply end VCC through a pull-up resistor R2j and is in a high potential; when the transistor Tj is in a conducting state, the corresponding pin of the control module U1 is therefore at a low potential through the transistor Tj to ground. Therefore, when the corresponding pin of the control module U1 is at a low potential, it can be determined that the jth home lamp is turned on, and the air conditioner is in a mains supply state.
While one implementation of the photodetection unit is provided in the above embodiment, it should be understood that this implementation is exemplary and not limiting, and in other embodiments, other connection manners may be adopted between the photoelectric element and the transistor, and between the transistor and the control module U1. In the following, the connection between the optoelectronic device and the transistor and between the transistor and the control module U1 in other implementation manners will be described in detail with reference to specific embodiments.
In one embodiment, the collector of the transistor of each of the photo-detection units is connected to a power supply terminal VCC, and the emitter is grounded through a pull-down resistor. Taking the jth photo-detection unit as an example, as shown in fig. 4, a collector of the transistor Tj is connected to a power supply terminal VCC, an emitter of the transistor Tj is grounded through a pull-down resistor R4j, and a pin of the control module U1 is connected to the emitter of the transistor Tj. When the triode Tj is in a cut-off state, a corresponding pin of the control module U1 is grounded through a pull-down resistor R4j and is in a low potential state; when the triode Tj is in a conducting state, a corresponding pin of the control module U1 is communicated with the power supply terminal VCC and is at a high potential. Thus. In the setting mode of this embodiment, when the pin corresponding to the control module U1 is at a high potential, it can be determined that the commercial power lamp is turned on, and the air conditioner is in a commercial power supply state.
In one embodiment, the photo-electric elements in the photo-detection unit are photodiodes, the anode of each photodiode is connected to a power supply terminal VCC through a matching resistor, the cathode is grounded, and the base of the triode is connected to the anode of the photodiode. Taking the structure shown in fig. 5 as an example, the anode of the photodiode Dj in the jth photodetection unit is connected to the power source VCC through the matching resistor R5j, the cathode is grounded, and the base of the transistor Tj is connected to the anode of the photodiode Dj.
When the commercial power does not supply power to the air conditioner, the jth house lamp is turned off, the photodiode Dj cannot sense light and is in a cut-off state, the base electrode of the triode Tj is connected with a power supply end VCC through a pull-up resistor R5j, the triode Tj is triggered and conducted, and the pin corresponding to the control module U1 is grounded and is in a low potential state; on the contrary, when the commercial power supplies power to the air conditioner, the jth house lamp is turned on, the photodiode Dj is sensitive to light and is in a conducting state, the base of the triode Tj is grounded, the triode Tj is turned off, and the pin corresponding to the control module U1 is connected with the power supply VCC and is in a high potential state. Therefore, in the setting manner of this embodiment, when the corresponding pin of the control module U1 is at a high potential, the air conditioner is in the commercial power supply state, and when the corresponding pin of the control module U1 is at a low potential, the air conditioner is in the non-commercial power supply state.
In one embodiment, the photosensitive element in the photodetecting unit is a photo resistor, one end of the photo resistor is connected to the base of the triode and the power supply terminal, the other end of the photo resistor is grounded, and a matching resistor is arranged on a line connecting the photo resistor and the power supply terminal. Taking the structure shown in fig. 6 as an example, the first terminal of the photo-resistor Rj in the jth photo-detecting unit is connected to the power supply terminal through the matching resistor R5j, the second terminal is grounded, and the base of the transistor Tj is connected to the first terminal of the photo-resistor Rj. In this embodiment, the matching resistor R5j is connected in series with the photo resistor Rj to form a voltage dividing circuit, a voltage dividing point of the voltage dividing circuit is connected to a base of the transistor Tj, and a voltage of the base of the transistor Tj varies with a resistance value of the photo resistor Rj.
When the commercial power supplies power to the air conditioner, the jth house lamp is turned off, the resistance value of the photoresistor Rj is larger, and correspondingly, the voltage of the base electrode of the triode Tj is higher, so that the triode Tj is triggered and conducted, and the pin corresponding to the control module U1 is grounded and is in a low-potential state; on the contrary, when the commercial power does not supply power to the air conditioner, the jth household lamp is turned on, the resistance value of the photoresistor Rj is smaller, correspondingly, the voltage of the base of the triode Tj is lower, when the voltage of the base of the triode Tj is smaller than the conduction voltage of the triode Tj, the triode Tj is turned off, and the pin corresponding to the control module U1 is connected with the power supply VCC and is in a high-potential state. Therefore, in the setting manner of this embodiment, when the corresponding pin of the control module U1 is at a high potential, the air conditioner is in the commercial power supply state, and when the corresponding pin of the control module U1 is at a low potential, the air conditioner is in the non-commercial power supply state.
In an embodiment, the present application further provides an air conditioner, which includes a main control module and a power detection device, where the power detection device is the same as the power detection devices in the above embodiments, and since the above embodiments have already described the power detection device in detail, in order to avoid repetition, various descriptions are omitted here.
In one embodiment, the control module U1 of the power detection apparatus may be integrally disposed on the main control module, that is, the signal output ends of the groups of photoelectric detection units are directly connected to the main control module of the air conditioner, and the main control module of the air conditioner directly receives the detection results of the groups of viewpoint detection units to determine whether the air conditioner is in a commercial power supply state.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A power detection device of an air conditioner, comprising:
at least two groups of photoelectric detection units, wherein at least one group of photoelectric detection units is configured to be arranged adjacent to a commercial power house-entry lamp to sense the on-off state of the commercial power house-entry lamp, and the other groups of photoelectric detection units are configured to be arranged adjacent to other power house-entry lamps to sense the on-off state of the other power house-entry lamps;
and the signal output end of each group of photoelectric detection units is used for communicating a main control module of the air conditioner so as to send the on-off states of the commercial power home entry lamp and other power source home entry lamps to the main control module of the air conditioner.
2. The power detection device of an air conditioner according to claim 1, further comprising a control module and a communication module, wherein the control module is connected to the communication module and is connected to the signal output end of each group of the photoelectric detection units, and the communication module is used for being connected to the air conditioner in a communication manner.
3. The apparatus of claim 2, wherein the communication module is a WIFI communication module or a bluetooth communication module.
4. The apparatus of claim 2, wherein the photo detection unit comprises a photo element and a transistor, the photo element is connected to a base of the transistor, and the control module is connected to the transistor to detect the on/off of the transistor.
5. The apparatus for detecting a power supply of an air conditioner according to claim 4, wherein a collector of the transistor is connected to a power supply terminal through a pull-up resistor, and an emitter of the transistor is grounded, and the control module is connected to the collector of the transistor.
6. The apparatus for detecting a power of an air conditioner according to claim 4, wherein the collector of the transistor is connected to a power source terminal, the emitter of the transistor is grounded through a pull-down resistor, and the control module is connected to the emitter of the transistor.
7. The apparatus for detecting a power supply of an air conditioner according to claim 4, wherein the photoelectric element is a photodiode, an anode of the photodiode is connected to a power supply terminal, and a cathode of the photodiode is connected to a base of the transistor.
8. The apparatus as claimed in claim 4, wherein the photo element is a photo diode, an anode of the photo diode is connected to a power source through a matching resistor, a cathode of the photo diode is grounded, and a base of the transistor is connected to an anode of the photo diode.
9. The apparatus for detecting a power of an air conditioner according to claim 4, wherein the photoelectric element is a photo resistor, one end of the photo resistor is connected to the base of the transistor and the power source, the other end of the photo resistor is grounded, and a matching resistor is disposed on a line connecting the photo resistor and the power source.
10. An air conditioner, characterized by comprising a main control module and the power supply detection device of the air conditioner as claimed in any one of claims 1 to 9.
CN202222601763.4U 2022-09-29 2022-09-29 Air conditioner and power supply detection device thereof Active CN218675250U (en)

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Application Number Priority Date Filing Date Title
CN202222601763.4U CN218675250U (en) 2022-09-29 2022-09-29 Air conditioner and power supply detection device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222601763.4U CN218675250U (en) 2022-09-29 2022-09-29 Air conditioner and power supply detection device thereof

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CN218675250U true CN218675250U (en) 2023-03-21

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CN202222601763.4U Active CN218675250U (en) 2022-09-29 2022-09-29 Air conditioner and power supply detection device thereof

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