WO2021174690A1

WO2021174690A1 - Method and apparatus for controlling multi-split air conditioner, and air conditioner

Info

Publication number: WO2021174690A1
Application number: PCT/CN2020/093167
Authority: WO
Inventors: 马玉奇; 孙小峰
Original assignee: 青岛海尔空调器有限总公司; 海尔智家股份有限公司
Priority date: 2020-03-03
Filing date: 2020-05-29
Publication date: 2021-09-10
Also published as: CN111306699A

Abstract

A method and apparatus for controlling a multi-split air conditioner, and an air conditioner. The method for controlling a multi-split air conditioner comprises: after multi-split installation is concluded, determining correspondences between split pipes and indoor units; and during control over an indoor unit, selecting a temperature of the split pipe corresponding to the indoor unit according to the correspondence. Even if the split pipes of different indoor units are wrongly connected in an installation process, the air conditioner can be normally controlled by adopting the method for controlling the multi-split air conditioner, and the positions of the split pipes do not need to be re-changed, so that the workload is saved. Also disclosed in the present application are an apparatus for controlling a multi-split air conditioner, and an air conditioner.

Description

Method, device and air conditioner for controlling multi-line air conditioner

This application is based on a Chinese patent application with an application number of 202010140877.6 and an application date of March 03, 2020, and claims the priority of the Chinese patent application. The entire content of the Chinese patent application is hereby incorporated by reference into this application.

Technical field

This application relates to the technical field of smart home appliances, for example, to a method, device and air conditioner for controlling a multi-line air conditioner.

Background technique

At present, when installing a one-to-two air conditioner, usually install the internal unit connection line, connection pipe, and condensate pipe first, wrap the three with bandages, pass them out along the wall hole, and then install the outdoor unit shut-off valve. Because of the beauty of the in-line tube, the in-line tubes of the two internal machines are often bundled together, and then installed on the shut-off valve. For example, the first shut-off valve is connected to the thin tube of the internal machine A, the second shut-off valve is connected to the thick tube of the internal machine A, the third shut-off valve is connected to the thin tube of the internal machine B, and the fourth shut-off valve is connected to the internal machine B. Thick tube.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related technology:

Because the pipe diameters of the in-line pipes of the two internal machines are the same, the after-sales masters may make mistakes during installation. It is possible that the first shut-off valve should be connected to the thin tube of internal machine A, the second shut-off valve should be connected to the thick tube of internal machine B, the third shut-off valve should be connected to the thin tube of internal machine B, and the fourth shut-off valve should be connected to the thin tube of internal machine B. The error condition of the thick tube of the internal machine. The existing design does not allow this situation, otherwise it is easy to cause machine failure, which will cause the installer to re-collect the fluorine and switch to the correct pipe position, which will increase the workload.

Summary of the invention

In order to have a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not a general comment, nor is it intended to determine key/important components or describe the protection scope of these embodiments, but serves as a prelude to the detailed description that follows.

The embodiments of the present disclosure provide a method, a device and an air conditioner for controlling a multi-line air conditioner, so as to solve the technical problem that the workload of the multi-line air conditioner is likely to increase after the on-line pipe of the external unit of the multi-line air conditioner is connected incorrectly.

In some embodiments, the method for controlling a multi-connected air conditioner includes:

After the on-line installation is over, determine the corresponding relationship between each on-line tube and the indoor unit;

When controlling the indoor unit, the temperature of the in-line tube corresponding to the indoor unit is selected according to the corresponding relationship.

In some embodiments, the device for controlling the multi-line air conditioner includes:

Obtain the module, which is configured to determine the corresponding relationship between each online tube and the indoor unit after the online installation is completed;

The selection module is configured to select the temperature of the in-line tube corresponding to the indoor unit according to the corresponding relationship when controlling the indoor unit.

In some embodiments, the apparatus for controlling a multi-line air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the control method provided in the foregoing embodiments when the program instructions are executed. Multi-line air conditioner method.

In some embodiments, the air conditioner includes the method for controlling the multi-line air conditioner provided in the foregoing embodiments.

The method, device and air conditioner for controlling a multi-line air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

After installing many outdoor units connected to the air conditioner, re-determine the corresponding relationship between the in-line tube and the indoor unit. In this way, even if the in-line tube of a different indoor unit is connected incorrectly during the installation process, the correct connection between the in-line tube and the indoor unit can be determined again. Correspondence, when controlling the indoor unit, select the temperature of the in-line tube corresponding to the indoor unit through the re-determined corresponding relationship, then the indoor unit can be controlled according to the temperature of the correct in-line tube, so as to realize the normal control of the indoor unit. There is no need to re-exchange the position of the in-line tube, which saves the workload.

The above general description and the following description are only exemplary and explanatory, and are not used to limit the application.

Description of the drawings

One or more embodiments are exemplified by the accompanying drawings. These exemplified descriptions and drawings do not constitute a limitation on the embodiments. In the drawings, elements with the same reference numerals are shown as similar elements. And among them:

FIG. 1 is a schematic diagram of a method for controlling a multi-connected air conditioner provided by an embodiment of the present disclosure;

2 is a schematic diagram of determining the corresponding relationship between each on-line tube and an indoor unit provided by an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of determining the corresponding relationship between each on-line tube and the indoor unit according to an embodiment of the present disclosure;

Fig. 4 is a schematic diagram of a device for controlling a multi-line air conditioner provided by an embodiment of the present disclosure.

Detailed ways

In order to have a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a number of details are used to provide a sufficient understanding of the disclosed embodiments. However, without these details, one or more embodiments can still be implemented. In other cases, in order to simplify the drawings, well-known structures and devices may be simplified for display.

The terms “first” and “second” in the description and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances for the purposes of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions.

Unless otherwise stated, the term "plurality" means two or more.

As shown in FIG. 1, a method for controlling a multi-connected air conditioner provided by an embodiment of the present disclosure includes:

S101. After the on-line installation is completed, determine the corresponding relationship between each on-line tube and the indoor unit.

The multi-line air conditioner in the embodiment of the present disclosure may be one-to-two air conditioners, or one-to-multiple air conditioners, and one outdoor unit is connected to multiple indoor units through an in-line pipe. Each indoor unit is connected to the outdoor unit through a thick tube and a thin tube, and the pipe diameters of the in-line pipes of different indoor units are the same.

In the embodiment of the present disclosure, the in-line tube may be a thick tube of the indoor unit, and the corresponding relationship between each in-line tube and the indoor unit is determined, that is, the corresponding relationship between each thick tube and the indoor unit is determined.

S102. When controlling the indoor unit, select the temperature of the in-line tube corresponding to the indoor unit according to the corresponding relationship.

Optionally, the corresponding relationship between each in-line tube and the indoor unit is determined according to the temperature difference between each in-line tube when the indoor unit is turned on and in the closed state. When each indoor unit is turned off, the temperature of each in-line tube is the same; when a certain indoor unit is turned on, the corresponding in-line tube of the indoor unit transports refrigerant, and the temperature of the in-line tube rises. The corresponding relationship of the machine.

As shown in Figure 2, according to the temperature difference between the on-line pipes when the indoor unit is turned on and off, the corresponding relationship between each on-line pipe and the indoor unit is determined, including:

S201. When all indoor units are turned off, detect the first temperature of each on-line tube.

The number of in-line tubes and indoor units is the same. When determining the in-line tube corresponding to the first indoor unit, the first temperature of each in-line tube can be detected, which can be implemented as: detecting the first temperature of the first in-line tube and detecting the second one The first temperature of the in-line tube, and so on, detect the first temperature of the Nth in-line tube. N is the number of indoor units.

Optionally, each on-line tube is an on-line tube for which the corresponding relationship with the indoor unit has not yet been determined. This can reduce the number of in-line tubes that need to be tested and improve efficiency. For example, it has been determined that the first indoor unit has a corresponding relationship with the first in-line tube, and detecting the first temperature of each in-line tube can be implemented as: detecting the first temperature of the second in-line tube and detecting the third in-line tube Detect the first temperature of the N-th in-line tube; after it has determined that the two indoor units have a corresponding relationship with the two in-line tubes, detecting the first temperature of each in-line tube can be implemented as: The first temperature of the third in-line tube is detected, the first temperature of the fourth in-line tube is detected, and so on, the first temperature of the N-th in-line tube is detected.

S202: After the i-th indoor unit is turned on, detect the second temperature of each on-line tube.

Among them, i=1,...,N-1; N is the number of indoor units. When i=1, that is, when determining the in-line tube corresponding to the first indoor unit, detecting the second temperature of each in-line tube includes: detecting the second temperature of the first in-line tube and detecting the second temperature of the second in-line tube Temperature, detect the second temperature of the third in-line tube, and so on, detect the second temperature of the N-th in-line tube.

Optionally, the i-th indoor unit is an indoor unit for which a corresponding relationship with an online tube has not been determined, and each online tube is an online tube for which a corresponding relationship with an indoor unit has not yet been determined. This can reduce the number of in-line tubes that need to be tested and improve efficiency. For example, it has been determined that the first indoor unit has a corresponding relationship with the first in-line tube. When detecting the corresponding relationship between the second indoor unit and the in-line tube, i=2, and detecting the second temperature of each in-line tube includes: The second temperature of the second in-line tube is detected, and the second temperature of the second in-line tube is detected, and so on, the second temperature of the Nth in-line tube is detected; it has been determined that 2 indoor units and 2 in-line tubes have a corresponding relationship , When detecting the correspondence between the third indoor unit and the in-line tube, detecting the second temperature of each in-line tube includes: detecting the second temperature of the third in-line tube, detecting the second temperature of the second in-line tube, and then By analogy, the second temperature of the Nth in-line tube is detected.

S203: Calculate the temperature difference between the second temperature and the first temperature of each in-line tube, and determine that the in-line tube whose temperature difference meets the first condition has a corresponding relationship with the i-th indoor unit.

When determining the in-line tube corresponding to the first indoor unit, calculate the temperature difference between the second temperature and the first temperature of the first in-line tube, calculate the temperature difference between the second temperature and the first temperature of the second in-line tube, and then By analogy, the temperature difference between the second temperature and the first temperature of the Nth in-line tube is detected. If the temperature difference of a certain in-line tube meets the first condition, the in-line tube has a corresponding relationship with the first indoor unit, that is, the in-line tube is connected to the first indoor unit.

Optionally, each on-line tube is an on-line tube for which the corresponding relationship with the indoor unit has not yet been determined. This can reduce the number of temperature differences that need to be calculated and improve efficiency. For example, it has been determined that the first indoor unit has a corresponding relationship with the first in-line tube. When determining the corresponding relationship between the second indoor unit and the in-line tube, the temperature difference between the second temperature and the first temperature of each in-line tube is calculated , Including: calculating the temperature difference between the second temperature and the first temperature of the second in-line tube, calculating the temperature difference between the second temperature and the first temperature of the third in-line tube, and so on, calculating the first temperature of the Nth in-line tube The temperature difference between the second temperature and the first temperature. If the temperature difference of a certain in-line tube meets the first condition, then the in-line tube has a corresponding relationship with the second indoor unit, that is, the in-line tube is connected to the second indoor unit ; After it has been determined that the two indoor units and the two in-line tubes have a corresponding relationship, calculating the temperature difference between the second temperature and the first temperature of the in-line tube includes: calculating the second temperature and the first temperature of the third in-line tube Calculate the temperature difference between the second temperature and the first temperature of the fourth in-line tube, and so on, calculate the temperature difference between the second temperature and the first temperature of the Nth in-line tube, if the temperature of a certain in-line tube If the difference meets the first condition, there is a corresponding relationship between the online tube and the third indoor unit, that is, the online tube is connected to the third indoor unit.

Optionally, the temperature difference between the second temperature and the first temperature of each on-line tube is sequentially calculated, and the calculation is stopped when the calculated temperature difference meets the first condition. It can reduce the number of temperature differences that need to be calculated and improve efficiency. For example, when determining the correspondence between the first indoor unit and the in-line tube, calculate the temperature difference between the second temperature of the first in-line tube and the first temperature to determine whether the temperature difference of the first in-line tube meets the first condition , If yes, stop the calculation, otherwise calculate the temperature difference between the second temperature of the second in-line tube and the first temperature, and determine whether the temperature difference of the second in-line tube meets the first condition, if yes, stop the calculation, otherwise calculate the first The temperature difference between the second temperature and the first temperature of the three in-line tubes, and so on, until only the calculated temperature difference of a certain in-line tube meets the first condition, stop the calculation, and confirm that the first indoor unit corresponds to the in-line tube relation.

Through the above steps, the corresponding relationship between each on-line tube and the indoor unit can be determined.

Optionally, the first condition includes: the temperature difference is greater than or equal to the first set temperature.

Optionally, before it is determined that there is a corresponding relationship between the online tube whose temperature difference meets the first condition and the i-th indoor unit, the method further includes: turning off the i-th indoor unit and turning on another indoor unit, and detecting the online tube whose temperature difference meets the first condition Whether the temperature of the tube returns to normal; if so, it is determined that there is a corresponding relationship between the on-line tube and the i-th indoor unit. It is detected whether the temperature of the in-line tube whose temperature difference meets the first condition returns to normal, indicating that the temperature sensor for detecting the in-line tube is working normally, and the corresponding relationship between the in-line tube and the i-th indoor unit is further verified.

As shown in Figure 3, according to the temperature difference of each in-line tube when the indoor unit is turned on and off, the corresponding relationship between each in-line tube and the indoor unit is determined, including:

S301. Detect the first temperature of each on-line tube when all indoor units are turned off.

S302: After the i-th indoor unit is turned on, detect the second temperature of each on-line tube.

S303: Calculate the temperature difference between the second temperature and the first temperature of each in-line tube, and determine the in-line tube whose temperature difference meets the first condition.

The foregoing methods of detecting the first temperature and the second temperature of each in-line tube, and calculating the temperature difference between the second temperature and the first temperature of each in-line tube are the same as the detection method and calculation method provided in the foregoing embodiment.

S304. Turn off the i-th indoor unit and turn on another indoor unit, and detect whether the temperature of the online tube whose temperature difference meets the first condition returns to normal; if so, it is determined that there is a corresponding relationship between the online tube and the i-th indoor unit.

Optionally, detecting whether the temperature of the in-line tube whose temperature difference meets the first condition returns to normal includes: detecting whether the temperature of the in-line tube returns to within a set range of its first temperature, and if so, the temperature of the in-line tube Return to normal.

Optionally, selecting the temperature of the in-line tube corresponding to the indoor unit according to the corresponding relationship includes: when controlling the i-th indoor unit, selecting the temperature of the in-line tube whose temperature difference meets the first condition. The on-line tube whose temperature difference meets the first condition is connected to the i-th indoor unit, and the i-th indoor unit can be controlled to operate normally by selecting the temperature of the on-line tube.

For example, for a one-to-two air conditioner, it has been determined that there is a corresponding relationship between the A indoor unit and the B online pipe, and the B indoor unit has a corresponding relationship with the A online pipe. When you need to control the A indoor unit, select the temperature at the B online pipe, That is, the temperature at the B-line tube is collected by the temperature sensor. When the B indoor unit needs to be controlled, the temperature at the A-line tube is selected, that is, the temperature at the A-line tube is collected by the temperature sensor, so that it can be controlled according to the normal control process Indoor unit A and indoor unit B are operating normally.

The embodiment of the present disclosure provides a device for controlling a multi-line air conditioner.

In some embodiments, the apparatus for controlling a multi-line air conditioner includes a processor and a memory storing program instructions, and the processor is configured to execute the method for controlling a multi-line air conditioner provided by the foregoing embodiment when the program instructions are executed. .

As shown in FIG. 4, an embodiment of the present disclosure provides a device for controlling a multi-line air conditioner, and the device includes:

A processor (processor) 41 and a memory (memory) 42 may also include a communication interface (Communication Interface) 43 and a bus 44. Among them, the processor 41, the communication interface 43, and the memory 42 can communicate with each other through the bus 44. The communication interface 43 can be used for information transmission. The processor 41 can call the logic instructions in the memory 42 to execute the method for controlling the multi-line air conditioner provided in the foregoing embodiment.

In addition, the aforementioned logic instructions in the memory 42 can be implemented in the form of a software functional unit and when sold or used as an independent product, they can be stored in a computer readable storage medium.

As a computer-readable storage medium, the memory 42 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 41 executes functional applications and data processing by running software programs, instructions, and modules stored in the memory 42, that is, implements the methods in the foregoing method embodiments.

The memory 42 may include a program storage area and a data storage area. The program storage area may store an operating system and an application program required for at least one function; the data storage area may store data created according to the use of the terminal device, and the like. In addition, the memory 42 may include a high-speed random access memory, and may also include a non-volatile memory.

The embodiments of the present disclosure provide an air conditioner, including the device for controlling a multi-line air conditioner provided in the foregoing embodiments.

The embodiments of the present disclosure provide a computer-readable storage medium that stores computer-executable instructions, and the computer-executable instructions are configured to execute the method for controlling a multi-connected air conditioner provided in the foregoing embodiments.

The embodiments of the present disclosure provide a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer executes A method for controlling multi-line air conditioners.

The aforementioned computer-readable storage medium may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.

The technical solutions of the embodiments of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which can be a personal computer, a server, or a network). Equipment, etc.) execute all or part of the steps of the method in the embodiments of the present disclosure. The aforementioned storage medium may be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disks or optical disks, etc. A medium that can store program codes, or it can be a transient storage medium.

The above description and drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The examples only represent possible changes. Unless explicitly required, the individual components and functions are optional, and the order of operations can be changed. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Moreover, the terms used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates, the singular forms "a" (a), "an" (an) and "the" are intended to also include plural forms . Similarly, the term "and/or" as used in this application refers to any and all possible combinations of one or more of the associated lists. In addition, when used in this application, the term "comprise" and its variants "comprises" and/or including (comprising) and the like refer to the stated features, wholes, steps, operations, elements, and/or The existence of components does not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components, and/or groups of these. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other same elements in the process, method, or device that includes the elements. In this article, each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method parts disclosed in the embodiments, then the relevant points can be referred to the descriptions in the method part.

Those skilled in the art may realize that the units and algorithm steps of the examples described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed by hardware or software may depend on the specific application and design constraint conditions of the technical solution. The skilled person may use different methods for each specific application to implement the described functions, but such implementation should not be considered as going beyond the scope of the embodiments of the present disclosure. The skilled person can clearly understand that, for the convenience and conciseness of the description, the specific working process of the above-described system, device, and unit can refer to the corresponding process in the foregoing method embodiment, which will not be repeated here.

In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of units may only be a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not implemented. In addition, the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to implement this embodiment. In addition, the functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.

The flowcharts and block diagrams in the accompanying drawings show the possible implementation architecture, functions, and operations of the system, method, and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowchart or block diagram may represent a module, program segment, or part of the code, and the module, program segment, or part of the code includes one or more executables for realizing the specified logic function. instruction. In some alternative implementations, the functions marked in the block may also occur in a different order from the order marked in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. Each block in the block diagram and/or flowchart, and the combination of the blocks in the block diagram and/or flowchart, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by dedicated hardware Realized in combination with computer instructions.

Claims

A method for controlling a multi-connected air conditioner, which is characterized in that it comprises:

After the on-line installation is over, determine the corresponding relationship between each on-line tube and the indoor unit;

When controlling the indoor unit, the temperature of the in-line tube corresponding to the indoor unit is selected according to the corresponding relationship.
The method of claim 1, wherein:

According to the temperature difference of each on-line tube when the indoor unit is turned on and off, the corresponding relationship between each on-line tube and the indoor unit is determined.
The method according to claim 2, characterized in that, according to the temperature difference of each in-line tube in the on and off state of the indoor unit, determining the corresponding relationship between each in-line tube and the indoor unit comprises:

When all indoor units are turned off, detect the first temperature of each on-line tube;

After the i-th indoor unit is turned on, detect the second temperature of each on-line tube;

Calculate the temperature difference between the second temperature and the first temperature of each in-line tube, and determine that the in-line tube whose temperature difference meets the first condition has a corresponding relationship with the i-th indoor unit;

Among them, i=1,...,N-1; N is the number of indoor units.
The method according to claim 3, wherein the first condition comprises: the temperature difference is greater than or equal to the first set temperature.
The method according to claim 3, wherein before determining that there is a corresponding relationship between the in-line tube whose temperature difference meets the first condition and the i-th indoor unit, the method further comprises:

Turn off the i-th indoor unit and turn on another indoor unit;

It is detected whether the temperature of the in-line tube whose temperature difference meets the first condition returns to normal; if so, it is determined that the in-line tube has a corresponding relationship with the i-th indoor unit.
The method according to claim 5, wherein detecting whether the temperature of the in-line tube whose temperature difference meets the first condition returns to normal, comprising:

It is detected whether the temperature of the in-line tube returns to within the set range of its first temperature, and if so, the temperature of the in-line tube returns to normal.
The method according to claim 3, wherein selecting the temperature of the in-line tube corresponding to the indoor unit according to the corresponding relationship comprises:

When controlling the i-th indoor unit, the temperature of the in-line tube whose temperature difference meets the first condition is selected.
The method according to any one of claims 1 to 7, wherein each on-line tube is an on-line tube for which a corresponding relationship with an indoor unit has not yet been determined.
A device for controlling a multi-line air conditioner, comprising a processor and a memory storing program instructions, wherein the processor is configured to execute any one of claims 1 to 8 when executing the program instructions The method for controlling the multi-line air conditioner described in the item.
An air conditioner, characterized by comprising the device for controlling a multi-line air conditioner according to claim 9.