WO2016188035A1

WO2016188035A1 - Air conditioner and accumulated water or snow identification method therefor

Info

Publication number: WO2016188035A1
Application number: PCT/CN2015/093335
Authority: WO
Inventors: 吴明勋; 杜玉清
Original assignee: 特灵空调系统(中国)有限公司
Priority date: 2015-05-28
Filing date: 2015-10-30
Publication date: 2016-12-01
Also published as: CN104864569B; CN104864569A

Abstract

An air conditioner and an accumulated water or snow identification method therefor. The air conditioner comprises a controller (8) and an outdoor heat exchanger (5), wherein the outdoor heat exchanger (5) has an air outlet (3) located at the top; and the air conditioner further comprises a geographic position sensor (2) and a cloud server (12), wherein the geographic position sensor (2) is configured to provide geographic position information about the air conditioner according to a satellite positioning system, the controller (8) is configured to send the geographic position information to the cloud server (12), the cloud server (12) is configured to feed weather information about the position where the air conditioner is located back to the controller (8) according to the geographic position information, and the controller (8) is further configured to provide a judgement result of whether there is accumulated snow or water at the air outlet (3) of the outdoor heat exchanger (5) according to the weather information and the operation condition of the air conditioner.

Description

Air conditioner and method for identifying accumulated water or snow

Technical field

The invention relates to an air conditioner and a method for identifying accumulated water or snow, in particular to a heat pump unit with a top outlet and a method for identifying accumulated water or snow.

Background technique

In snowy areas, when the top-out heat pump unit is in a shutdown state, it is often covered with snow. When the amount of snow reaches a certain level, if it is not removed in time, the heating effect will be seriously affected, and the speed of frosting will be intensified, so that the user cannot use it normally.

In order to prevent snow cover, the current common method is to install a snow cover. Although the installation of the snow cover is an effective method of snow prevention, it additionally increases the investment cost of the equipment, requires more installation space, and slightly affects the performance of the refrigeration during the summer cooling season.

In the area of freezing rain disasters, the temperature is below 0 degrees Celsius, and when it rains, the rain will freeze and stick to the surface of the fan. The thicker the knot, the more the knot will be, and the wind and the wind guide When the wind net is solidified together, when the fan is started, the wind turbine blade is balanced and the noise is generated, and the wind blade is broken.

Summary of the invention

An embodiment of the present invention provides an air conditioner including a controller and an outdoor heat exchanger having an air outlet at a top, further including a geographic location sensor and a cloud server, the geographic location sensor configuration Providing geographic location information of the air conditioner according to a satellite positioning system, the controller configured to send the geographic location information to the cloud server, the cloud server configured to perform the control according to the geographic location information Mechanizing the weather information of the location of the air conditioner, the controller is further configured to provide whether the air outlet of the outdoor heat exchanger is covered with snow or water according to the weather information and the operation condition of the air conditioner critical result.

In a preferred embodiment, the air conditioner further includes a radar device disposed at the air outlet, the radar device is configured to detect whether there is an obstacle in the air outlet, and the controller is further configured to receive the radar The detection signal output by the device provides a determination signal as to whether the air outlet is snowy based on the weather information and the operation state of the air conditioner and the detection signal.

In a preferred embodiment, the controller is further configured to control the operation of the fan to eliminate snow or water accumulation based on the result of the determination.

In a preferred embodiment, the controller is further configured to control the operation of the fan based on the determination to eliminate snow.

In a preferred embodiment, the air conditioner further includes an ambient temperature sensor for detecting a temperature of an environment in which the air conditioner is located, the controller being further configured to receive the output of the ambient temperature sensor And detecting a signal and providing a determination signal as to whether the air outlet has accumulated water according to the weather information and the detection signal.

In a preferred embodiment, the air conditioner further includes a fault diagnosis system including the controller and a human-machine interaction device, the controller according to the continuous running time of the fan and the radar device The detection signal provides a fault signal, and the human-machine interaction device is configured to present the fault signal.

According to an embodiment of the present invention, there is also provided a method for identifying water accumulation or snow accumulation of an air conditioner, including

Providing a geographic location sensor corresponding to the air conditioner, and acquiring, by the geographic location sensor, geographic location information of the air conditioner from a satellite positioning system;

Sending the geographical location information to the cloud server, and acquiring, by the cloud server, the meteorological information of the location of the air conditioner according to the geographic location information;

Whether or not snow is accumulated or accumulated in the air outlet of the outdoor heat exchanger of the air conditioner based on the weather information and the operation state of the air conditioner.

The water accumulation or snow recognition method described in the preferred embodiment further includes configuring, by the radar, whether the air outlet has an obstacle, according to the weather information and the operation of the air conditioner and the radar detection. The signal is used to determine whether the air outlet of the outdoor heat exchanger of the air conditioner is snowy.

In the preferred embodiment, the water accumulation or snow identification method determines whether snow or water is accumulated, and removes snow or water by a fan that runs at the top of the outdoor heat exchanger.

In the preferred embodiment, the accumulated water or snow identification method determines snow, and removes snow by running a fan that blows air at the top of the outdoor heat exchanger.

The water accumulation or snow identification method described in the preferred embodiment is that the radar detected signal still displays an obstacle during the continuous operation time of the fan, thereby providing a fault signal, and the fault signal passes through the person The machine interaction device is presented.

The determination of whether or not the snow is accumulated in the water accumulation or snow recognition method described in the preferred embodiment is judged by the calculation result P, P = A * B * C * D or A * B * C or A * C * D Or B*B'*C, wherein the value of A corresponds to the season included in the meteorological information, the value of B corresponds to the weather included in the weather information, and the value of C corresponds to the operation condition as the downtime exceeds the setting For a fixed time or other time, the value of D corresponds to the radar to obtain an obstacle or obstacle-free signal, and the value of B' corresponds to the ambient temperature of the air conditioner.

The determination of whether or not the water is accumulated in the water accumulation or snow identification method described in the preferred embodiment is determined by the calculation result P, P = B * B', wherein the value of B corresponds to the weather included in the weather information. The value of B' corresponds to the ambient temperature of the air conditioner.

Embodiments in accordance with the present invention are suitable for use with an air conditioner (e.g., a heat pump) that emits air in a cold area, and the fan grill may be covered with snow during a shutdown. If it is not removed in time, once the heat is re-run, it will hinder the airflow, which will reduce the heating performance, and will cause frequent frosting, defrosting, and in the rainy days with low temperature, the air conditioner may be covered by freezing rain. The present invention can determine whether the top of the outdoor side of the air conditioner in the stopped state is covered with snow or freezing rain, and further removes snow or rain.

DRAWINGS

The above and other features, aspects and advantages of the present invention will become more apparent from the following description in conjunction with the appended claims

1 is a schematic view of a portion of an air conditioner in accordance with an embodiment of the present invention;

2 is a schematic diagram of a method of identifying snow or water in an air conditioner according to an embodiment of the present invention.

detailed description

The invention will be further described in the following detailed description of the embodiments of the invention, A person skilled in the art can make similar promotion and deduction according to the actual application without departing from the connotation of the present invention. Therefore, the scope of the present invention should not be limited by the content of the specific embodiment.

The air conditioner takes an air-cooled heat pump unit as an example, and includes a circulation system composed of a compressor, an indoor side heat exchanger, a throttle, an outdoor side heat exchanger (heat absorber), and a compressor, and the refrigerant is in the air. Under the action of the compressor, it circulates in the system, completes the gaseous boosting process in the compressor, and enters the indoor side. After the heat exchanger exchanges heat with the wind, it is cooled and converted into a liquid liquid. When the refrigerant runs to the heat absorber, the liquid rapidly absorbs the heat and evaporates again into a gaseous state, and the temperature drops, for example, drops to minus 20 ° C - 30 °C, the air around the heat absorber will continuously transfer the low-temperature heat to the refrigerant, and the continuous circulation of the refrigerant will realize the process of converting the low-temperature heat in the air into high-temperature heat and heating the cold water. In the embodiment to be described later, the portion related to the snow or the accumulated water is mainly described for the air outlet of the outdoor side heat exchanger, and the same configuration as the prior art can be employed without explanation.

As shown in FIG. 1, the air conditioner further includes a geographic location sensor 2 and a cloud server 12, and the geographic location sensor 2 is configured to provide geographic location information of the air conditioner according to the satellite positioning system. The satellite positioning system can be a GPS system or a Beidou navigation system, or other satellite positioning system. The air conditioner is further provided with a controller 8, which can adopt a central controller configured by the air conditioner itself, the controller 8 is associated with the cloud server 12, and the controller 8 is configured to transmit the geographical location information to the cloud server 12, the cloud server 12 is configured to feed back the weather information of the location of the air conditioner to the controller 8 according to the geographical location information, and the weather information may be weather and climate information of the area where the air conditioner is issued by the meteorological department, and the weather information includes, for example, , sunny, rain, snow, possible snow, wind, climate information can be the long-term average state of the atmospheric physical characteristics of the area where the air conditioner is located, which can be measured on a monthly or seasonal scale, and may vary with the size scale of different regions. Includes temperature information. The controller 8 is further configured to provide a determination result as to whether or not the air outlet 3 of the outdoor heat exchanger 5 is covered with snow or accumulated water based on the weather information and the operation of the air conditioner.

The controller 8 and the cloud server 12 may be associated by a wired line 13 or may be associated by a wireless line. Likewise, the geographic location sensor 2 and the controller 8 may be associated via a wired or wireless path 7.

The controller 8 can also be configured to be associated with the motor 9 of the fan 4, such that once the controller 8 obtains the result of the determination, the motor 9 can be driven to operate according to the result of the determination, and the motor 9 drives the fan 4, and the air exits through the air outlet 3, so Snow or water can be removed. The air outlet 3 is generally provided with a grille to block foreign matter from entering the heat exchanger 5.

With continued reference to Figure 1, a radar device 1 can also be provided adjacent the air outlet 3, which is also arranged to be associated with the controller 8 via a wired or wireless path 6. The radar device 1 is for detecting whether or not there is an obstacle in the tuyere 3, and the controller 8 determines whether there is snow or water by combining the weather information fed back by the cloud server 12 and the detection signal transmitted by the radar device 1. The judgment result of the controller 8 can be directly applied to the motor 9 through the controller 8. In other embodiments of the present invention, the judgment result of the controller 8 can also be applied to other suitable snow removal. Or a device that removes water.

Although not shown in the drawings, it can be understood that the ambient temperature controller provided by the air conditioner or the ambient temperature controller added near the air outlet 3 can also be used to detect the temperature of the environment in which the air conditioner is located. Further, the controller is further configured to receive the detection signal output by the ambient temperature sensor and provide a determination signal as to whether the air outlet has accumulated water according to the weather information and the detection signal.

With continued reference to FIG. 1, the air conditioner is further configured with a fault diagnosis system including a controller 8 and a human-machine interaction interface 15, which may be a display screen or an acoustic or light generating device, which passes through a wired or wireless path 14 In interaction with the controller 8, the radar device 1 still outputs an obstacle signal after the fan 4 continues to remove snow for a period of time, and the controller 8 outputs a fault signal according to which the human-machine interaction interface 15 is used to present the fault signal. When the controller 8 determines that water is accumulated (for example, freezing rain weather), the controller 8 can output an alarm signal only based on the radar device 1.

Referring to FIG. 2, in conjunction with FIG. 1, a method for identifying water or snow in an air conditioner, comprising the step S1, providing a geolocation sensor 2 corresponding to the air conditioner, and acquiring the above from the satellite positioning system by the geographic location sensor 2 Geographic location information of the air conditioner;

Step S2, the geographic location information is sent to the cloud server 12, and the meteorological information of the location of the air conditioner is obtained from the cloud server 12 according to the geographic location information;

In step S4, it is judged whether or not snow is accumulated or accumulated in the air outlet 3 of the outdoor heat exchanger 5 of the air conditioner based on the weather information and the operation state of the air conditioner.

In a preferred embodiment, the method may further include the step S3 of detecting, by the radar device 1, whether the tuyere 3 has an obstacle, and then obtaining the airborne information according to the weather information and the operation of the air conditioner and the radar detection. A signal is used to determine whether the air outlet 3 of the outdoor heat exchanger 5 of the air conditioner has accumulated snow or water.

In a preferred embodiment, the method may further include the step S5, once the snow or water is determined, the snow or water may be removed by the fan 4 running at the top of the outdoor heat exchanger 5 in step S5.

In a preferred embodiment, the method may further include the step S6, the signal detected by the radar device 1 still displays an obstacle during the continuous operation of the fan 4, and the fault signal may be provided according to the fault signal, and the fault signal is passed. The human-machine interaction device is presented.

In an embodiment, the method for judging whether snow or water is accumulated is determined by P=A*B*C*D, wherein

P: the possibility of snow cover, if P>=1, it is judged that there is snow cover, and snow removal is required;

The values of A, B, C, and D are set according to the season, weather, unit operation, and radar detection. Set, as shown in Table 1:

Table I

The season information in item A and the weather information in B are obtained from the cloud server 12, and the season information may be set differently depending on different regions, for example, it may be simply divided into a cold month or a non-cold month.

In another embodiment, the method for judging whether snow or water is accumulated is determined by P=A*B*C, wherein

The values of A, B, and C are valued according to the season, weather, and unit operation, as shown in Table 2:

Table II

The season information in the item A and the weather information in the B are obtained from the cloud server 12, and the season information may be set differently according to different regions, for example, it may be simply divided into a cold month or a non-cold month. In another embodiment, the method for judging whether snow or water is accumulated is determined by P=A*C*D, wherein

The values of A, C, and D are valued according to the season, unit operation, and radar, as shown in Table 3:

Table 3

The season information in the item A and the weather information in the B are obtained from the cloud server 12, and the season information may be set differently according to different regions, for example, it may be simply divided into a cold month or a non-cold month.

In another embodiment, the method of determining whether water is accumulated is determined by P=B*B', wherein

The values of B and B' are taken according to the weather, temperature and unit operation, as shown in Table 4:

Table 4

The B' data is read from the unit's own ambient temperature sensor, and B is the data provided by the cloud server. Among them, it is not necessary to pass the radar to judge the accumulated water, and the alarm signal can be provided through the radar during the freezing rain. If there is rain and the temperature is a temperature that is easy to freeze, the fan can be continuously operated to prevent freezing.

The present invention is disclosed in the above preferred embodiments, but is not intended to limit the invention, and any changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, any modifications, equivalent changes, and modifications of the above embodiments may be made without departing from the spirit and scope of the invention.

Claims

An air conditioner includes a controller and an outdoor heat exchanger, the outdoor heat exchanger having an air outlet at a top, wherein the air conditioner further includes a geographic location sensor and a cloud server, and the geographic location sensor is configured to Providing geographic location information of the air conditioner according to a satellite positioning system, the controller configured to send the geographic location information to the cloud server, the cloud server configured to notify the controller according to the geographic location information Feeding back meteorological information of the location of the air conditioner, the controller is further configured to provide whether the air outlet of the outdoor heat exchanger is covered with snow or accumulated water according to the weather information and the operation condition of the air conditioner result.
The air conditioner according to claim 1, wherein said air conditioner further comprises a radar device disposed at said air outlet, said radar device for detecting whether said air outlet has an obstacle, said controller Further configured to receive a detection signal output by the radar device and provide a determination signal as to whether the air outlet is snowy based on the weather information and an operation condition of the air conditioner and the detection signal.
The air conditioner according to claim 1, wherein said controller is further configured to control said fan to operate in accordance with said judgment result to eliminate snow or water.
The air conditioner according to claim 2, wherein said controller is further configured to control said fan to operate in accordance with said judgment result to eliminate snow.
The air conditioner according to claim 1, wherein said air conditioner further comprises an ambient temperature sensor for detecting a temperature of an environment in which said air conditioner is located, said controller being further configured to receive The detection signal output by the ambient temperature sensor provides a determination signal as to whether the air outlet has accumulated water according to the weather information and the detection signal.
The air conditioner according to claim 4, wherein said air conditioner further comprises a fault diagnosis system, said fault diagnosis system comprising said controller and human-machine interaction means, said controller being continuously operated according to said fan The time and the detection signal of the radar device provide a fault signal, and the human-machine interaction device is configured to present the fault signal.
A method for identifying water or snow accumulation of an air conditioner, characterized by comprising

Providing a geographic location sensor corresponding to the air conditioner, and acquiring, by the geographic location sensor, geographic location information of the air conditioner from a satellite positioning system;

Sending the geographical location information to the cloud server, and acquiring, by the cloud server, the meteorological information of the location of the air conditioner according to the geographic location information;

Whether or not snow is accumulated or accumulated in the air outlet of the outdoor heat exchanger of the air conditioner based on the weather information and the operation state of the air conditioner.
The method of identifying water or snow accumulation according to claim 7, further comprising: configuring, by the radar, detecting whether the air outlet has an obstacle, according to the weather information and the operation of the air conditioner and the The radar detects the obtained signal to determine whether the air outlet of the outdoor heat exchanger of the air conditioner is snowy.
The method of identifying water or snow according to claim 7, wherein if snow or water is judged, snow or water is removed by a fan that operates at the top of the outdoor heat exchanger.
The method of identifying water or snow according to claim 8, wherein if snow is judged, snow is removed by running a fan that blows air at the top of the outdoor heat exchanger.
A method of identifying water or snow according to claim 10, wherein said radar detected signal still displays an obstacle during said continuous operation of said fan, thereby providing a fault signal, and said fault signal is passed The human-machine interaction device is presented.
The method for identifying accumulated water or snow according to claim 7, wherein the judgment of whether or not the snow is accumulated is judged by the calculation result P, P = A * B * C * D or A * B * C or A * C*D or B*B'*C, wherein the value of A corresponds to the season included in the meteorological information, the value of B corresponds to the weather included in the meteorological information, and the value of C corresponds to the running condition as a shutdown. If the time exceeds the set time or other time, the value of D corresponds to the radar to obtain an obstacle or obstacle-free signal, and the value of B' corresponds to the ambient temperature of the air conditioner. degree.
The method for identifying water accumulation or snow accumulation according to claim 7, wherein the determination of whether or not the water is accumulated is judged by the calculation result P, P = B * B', wherein the value of B corresponds to the weather information. In the weather included, the value of B' corresponds to the ambient temperature of the air conditioner.