CN109708265B - Starting method of fan in outdoor unit and outdoor unit - Google Patents
Starting method of fan in outdoor unit and outdoor unit Download PDFInfo
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- CN109708265B CN109708265B CN201811565800.2A CN201811565800A CN109708265B CN 109708265 B CN109708265 B CN 109708265B CN 201811565800 A CN201811565800 A CN 201811565800A CN 109708265 B CN109708265 B CN 109708265B
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Abstract
The embodiment of the invention discloses a starting method of a fan in an outdoor unit and the outdoor unit, relates to the technical field of air conditioners, and solves the problem of misjudgment failure of the outdoor unit caused by the fact that a built-in driving direct current fan is influenced by strong wind to reversely rotate when being started. Determining a first rotating speed of a built-in driving direct current fan, receiving an initial VSP voltage, judging whether the first rotating speed is greater than or equal to a safe rotating speed, if the first rotating speed is greater than or equal to the safe rotating speed, operating for a first preset time under the initial VSP voltage, determining a second rotating speed of the built-in driving direct current fan, judging whether the second rotating speed is greater than or equal to the first rotating speed, if the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage, if the second rotating speed is less than the first rotating speed, driving the built-in driving direct current fan by the second VSP voltage, wherein the second VSP voltage is greater than the first VSP voltage, and if the first rotating speed is less than the safe rotating speed, driving the built-in driving direct current fan to operate by the first.
Description
Technical Field
The embodiment of the invention relates to the technical field of air conditioners, in particular to a starting method of a fan in an outdoor unit and the outdoor unit.
Background
Air conditioners are installed in more and more places, and installation occasions are various, for example, places with strong wind such as seasides, outdoor units are exposed outdoors in the occasions, and built-in driving direct current fans contained in the outdoor units can be blown against by the strong wind. Because the built-in driving direct current fan is helpful to improve the energy efficiency level of the air conditioner, the built-in driving direct current fan still can normally and reliably operate under the influence of strong wind.
After the outdoor unit is started normally, a main control module of the outdoor unit can input a speed control voltage (namely, a VSP voltage) to the built-in driving direct current fan, a built-in driver of the built-in driving direct current fan can recognize the VSP voltage, and the fan is controlled to run in the forward direction when the VSP voltage is determined to be greater than the starting voltage of the fan. After the fan operates, a pulse is generated and fed back to the main control module. The main control module can calculate the actual rotating speed of the fan according to the feedback pulse and adjust the VSP voltage according to the actual rotating speed, so that the aim of adjusting the rotating speed of the fan is fulfilled. Specifically, if the actual rotating speed is less than the set rotating speed, the VSP voltage is increased, and if the actual rotating speed is greater than the set rotating speed, the VSP voltage is decreased to ensure the stable operation of the fan.
However, if the built-in driving direct current fan is influenced by strong wind to run in a reverse direction when being started, because the built-in driving direct current fan is a built-in driver, the main control module can only calculate the actual rotating speed of the fan according to the feedback pulse and cannot know that the fan runs in the reverse direction, the main control module still adjusts the VSP voltage according to the actual rotating speed, so that the built-in driving direct current fan runs in the reverse direction from the reverse direction to the stop of the reverse direction, and then runs in the forward direction to reach the set rotating speed. If the built-in driving direct current fan takes longer time in the process from reverse rotation operation to forward rotation reaching the set rotating speed, the outdoor unit can think that the fan fails, and the outdoor unit has overhigh temperature and overlarge load due to poor heat dissipation of the outdoor unit when the fan rotates reversely.
Disclosure of Invention
The invention provides a starting method of a fan in an outdoor unit and the outdoor unit, which solve the problems that the outdoor unit misjudges that the built-in driving direct current fan has a fault and the operation load of the outdoor unit is overlarge because the built-in driving direct current fan is influenced by strong wind to reversely operate when being started, and quickly recover the built-in driving direct current fan to a normal operation state when judging that the built-in driving direct current fan is started against the wind.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a method for starting a fan in an outdoor unit, which is applied to the outdoor unit, wherein the outdoor unit includes a built-in driving dc fan, and the method includes: receiving a starting signal for indicating the built-in driving direct current fan to start work; determining a first rotating speed of the built-in driving direct current fan, receiving an initial VSP voltage, and judging whether the first rotating speed is greater than or equal to a safe rotating speed or not, wherein the first rotating speed is a rotating speed of the built-in driving direct current fan which is not driven by the initial VSP voltage; if the first rotating speed is greater than or equal to the safe rotating speed, determining a second rotating speed of the built-in driving direct current fan after the built-in driving direct current fan runs for a first preset time under the initial VSP voltage; judging whether the second rotating speed is greater than or equal to the first rotating speed; if the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to run by using a first VSP voltage, wherein the first VSP voltage is greater than the initial VSP voltage; if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to run by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage; and if the first rotating speed is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
With reference to the first aspect and the foregoing possible implementation manners, the method may further include: and when the rotating speed of the built-in driving direct current fan driven by the second VSP voltage is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
With reference to the first aspect and the foregoing possible implementation manners, if the second rotation speed is greater than or equal to the first rotation speed, after the internal driving dc fan operates at the first VSP voltage for a second preset time, periodically detecting a rotation speed of the internal driving dc fan; and when determining that the rotating speeds of the built-in driving direct current fan are detected to be greater than or equal to the first rotating speed for M times continuously, increasing the VSP voltage for driving the built-in driving direct current fan to operate.
With reference to the first aspect and the foregoing possible implementation manners, if the second rotation speed is lower than the first rotation speed, when the internal driving dc fan operates at the second VSP voltage, periodically detecting a rotation speed of the internal driving dc fan; and when the rotating speed of the built-in driving direct current fan is detected to be less than the safe rotating speed for N times continuously, driving the built-in driving direct current fan to operate by the first VSP voltage, wherein N is an integer greater than 1.
With reference to the first aspect and the possible implementation manners described above, when the second rotation speed is less than the first rotation speed, a rotation speed difference between the first rotation speed and the second rotation speed is determined; determining an increment of the VSP voltage according to the rotation speed difference value, and determining the second voltage according to the increment; and after the built-in driving direct current fan operates for a third preset time under the second voltage, detecting a third rotating speed of the built-in driving direct current fan, and comparing the third rotating speed with the second rotating speed.
In a second aspect, the present invention provides an outdoor unit, comprising: the system comprises a built-in driving direct current fan, a receiving unit, a first judging unit, a first processing unit, a second judging unit and a second processing unit; the receiving unit is used for receiving a starting signal for indicating the built-in driving direct current fan to start and work and is also used for receiving an initial VSP voltage; the first judging unit is configured to judge whether the first rotational speed is greater than or equal to a safe rotational speed, where the first rotational speed is a rotational speed at which the internal drive dc fan is not driven by the initial VSP voltage; the first processing unit is configured to determine a second rotation speed of the internal drive dc fan after operating at the initial VSP voltage for a first preset time if the first rotation speed is greater than or equal to the safe rotation speed; if the first rotating speed is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage; the second judging unit is configured to judge whether the second rotation speed is greater than or equal to the first rotation speed; the second processing unit is configured to drive the internal drive dc fan to operate at a first VSP voltage if the second rotation speed is greater than or equal to the first rotation speed, where the first VSP voltage is greater than the initial VSP voltage; and if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to run by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage.
With reference to the second aspect and the foregoing possible implementation manners, the second processing unit is specifically configured to: and when the rotating speed of the built-in driving direct current fan driven by the second VSP voltage is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
With reference to the second aspect and the foregoing possible implementation manners, the second processing unit is specifically configured to: periodically detecting the rotating speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a second preset time under the first VSP voltage; and when determining that the rotating speeds of the built-in driving direct current fan are detected to be greater than or equal to the first rotating speed for M times continuously, increasing the VSP voltage for driving the built-in driving direct current fan to operate.
With reference to the second aspect and the foregoing possible implementation manners, the second processing unit is specifically configured to: periodically detecting the rotational speed of the internal driving direct current fan when the internal driving direct current fan operates at the second VSP voltage; and when the rotating speed of the built-in driving direct current fan is detected to be less than the safe rotating speed for N times continuously, driving the built-in driving direct current fan to operate by the first VSP voltage, wherein N is an integer greater than 1.
With reference to the second aspect and the foregoing possible implementation manners, the second processing unit is specifically configured to: determining a rotation speed difference value of the first rotation speed and the second rotation speed; determining an increment of the VSP voltage according to the rotation speed difference value, and determining the second voltage according to the increment; and after the built-in driving direct current fan operates for a third preset time under the second voltage, detecting a third rotating speed of the built-in driving direct current fan, and comparing the third rotating speed with the second rotating speed.
In a third aspect, an outdoor unit is provided, including: at least one processor, a memory, a communication interface, and a communication bus. The processor is connected to the memory and the communication interface through a communication bus, the memory is used for storing computer execution instructions, and when the outdoor unit runs, the processor executes the computer execution instructions stored in the memory, so that the outdoor unit executes the method for starting the fan in the outdoor unit according to the first aspect or any one of the possible implementation manners of the first aspect.
The invention provides a starting method of a fan in an outdoor unit and the outdoor unit, when the fan in the outdoor unit is started, the starting method of the fan in the outdoor unit is applied to the outdoor unit, the outdoor unit comprises a built-in driving direct current fan, and the starting method comprises the following steps: receiving a starting signal for indicating the start operation of the built-in driving direct current fan, determining a first rotating speed of the built-in driving direct current fan, receiving an initial VSP voltage, and judging whether the first rotating speed is greater than or equal to a safe rotating speed, wherein the first rotating speed is the rotating speed of the built-in driving direct current fan which is not driven by the initial VSP voltage, if the first rotating speed is greater than or equal to the safe rotating speed, operating for a first preset time under the initial VSP voltage, determining a second rotating speed of the built-in driving direct current fan, judging whether the second rotating speed is greater than or equal to the first rotating speed, if the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage, the first VSP voltage is greater than the initial VSP voltage, if the second rotating speed is less than the first rotating speed, driving the built-in driving direct current fan to operate by the second VSP voltage, the second VSP voltage is greater than the first VSP voltage, and if, the built-in driving direct current fan is driven to operate at the first VSP voltage. Therefore, whether the built-in driving direct current fan rotates forwards or reversely is judged according to the rotating speed of the built-in driving direct current fan, the condition that the built-in driving direct current fan is judged by the outdoor unit to be in fault by mistake is avoided, when the fan is confirmed to rotate reversely and start against the wind, the rotating speed of the fan is adjusted by the second VSP voltage which is larger than the driving VSP voltage for driving the fan to normally operate, the reverse rotation and reverse running state is quickly adjusted, the reverse running time is shortened, the safe starting of the built-in driving direct current fan in the reverse wind state is realized, the heat exchange of the compressor in the reverse rotation of the built-in driving direct current fan is avoided, the load after the outdoor unit is started is reduced, and the.
Drawings
Fig. 1 is a schematic composition diagram of an outdoor unit according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for starting a fan in an outdoor unit according to an embodiment of the present invention;
fig. 3 is a schematic composition diagram of an outdoor unit according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating an outdoor unit according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a schematic diagram illustrating an outdoor unit according to an embodiment of the present invention, where the outdoor unit may be an outdoor unit of an air conditioner or other equipment using an air source heat pump. As shown in fig. 1, the outdoor unit may include: at least one processor 11, a memory 12, a communication interface 13, a communication bus 14, and a built-in driving dc fan 15.
The following describes each component of the outdoor unit with reference to fig. 1:
the processor 11 is a control center of the outdoor unit, and may be a single processor or a collective term for a plurality of processing elements. For example, the processor 11 is a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention, such as: one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).
In particular implementations, processor 11 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 1, for example, as one embodiment. Also, as an example, the outdoor unit may include a plurality of processors, such as the processor 11 and the processor 16 shown in fig. 1. Each of these processors may be a Single-core processor (Single-CPU) or a Multi-core processor (Multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).
The Memory 12 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory 12 may be self-contained and coupled to the processor 11 via a communication bus 14. The memory 12 may also be integrated with the processor 11.
In a specific implementation, the memory 12 is used for storing data in the present invention and software programs for executing the present invention. The processor 11 may perform various functions of the outdoor unit by running or executing a software program stored in the memory 12 and calling data stored in the memory 12.
The communication interface 13 is any device such as a transceiver for communicating with other devices or communication Networks, such as a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), and the like. The communication interface 13 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.
The communication bus 14 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (enhanced Industry Standard Architecture) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 1, but it is not intended that there be only one bus or one type of bus.
The built-in driving direct current fan 15 is a fan with a built-in driver, when VSP voltage input by the main control unit exceeds starting voltage, the built-in driving starts the motor, and the rotating speed is adjusted according to the VSP after the motor is started. The main control unit controls the built-in driving direct current motor to adjust the VSP voltage according to the actual rotating speed determined by the feedback pulse, the VSP voltage is increased when the rotating speed is lower than the set rotating speed, and the VSP voltage is decreased when the rotating speed is higher than the set rotating speed.
In order to solve the problems that the outdoor unit misjudges that the built-in driving direct current fan fails due to the fact that the built-in driving direct current fan is influenced by strong wind to run in a reverse direction when the built-in driving direct current fan is started, the starting direction (forward rotation or reverse rotation) of the fan cannot be determined, and the load of the outdoor unit is too large, an embodiment of the invention provides a starting method of the fan in the outdoor unit, and with reference to fig. 1, as shown in fig. 2, the method may include:
201. and receiving a starting signal for indicating the built-in driving direct current fan to start to work.
When a user starts the outdoor unit, the outdoor unit can detect a starting signal, and the outdoor unit is determined to have a starting requirement and is ready to be started.
202. Determining a first rotating speed of the built-in driving direct current fan, receiving an initial VSP voltage, and judging whether the first rotating speed is greater than or equal to a safe rotating speed, wherein the first rotating speed is a rotating speed of the built-in driving direct current fan which is not driven by the initial VSP voltage.
The safe rotating speed is the maximum allowable rotating speed of the built-in driving direct current fan when the outdoor unit is not started, and the built-in driving direct current fan can stably operate after being started at the safe rotating speed no matter whether the built-in driving direct current fan rotates forwards or reversely, but if the outdoor unit is not started, the reverse rotating speed of the built-in driving direct current fan is greater than the safe rotating speed, the problem that the outdoor unit misjudges that the built-in driving direct current fan has a fault and the load of the outdoor unit is overlarge can occur. And the safe rotation speed can be obtained in advance through practice and stored in the outdoor unit.
After the outdoor unit determines that the first rotation speed is obtained, the first rotation speed may be compared with a safe rotation speed to determine whether to turn on the fan protection function. And if the first rotating speed is greater than or equal to the safe rotating speed, starting a fan protection function.
203. And if the first rotating speed is greater than or equal to the safe rotating speed, determining a second rotating speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a first preset time under the initial VSP voltage, and if the first rotating speed is less than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
204. And judging whether the second rotating speed is greater than or equal to the first rotating speed.
205. If the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to run by using a first VSP voltage, wherein the first VSP voltage is greater than the initial VSP voltage;
and if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to run by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage.
After detecting the second rotation speed of the internal driving dc fan, the outdoor unit may compare the second rotation speed with the previous rotation speed, that is, the first rotation speed, to determine whether the internal driving dc fan rotates forward or backward. If the second rotating speed is less than the first rotating speed, it indicates that the fan is reversed when the outdoor unit is started.
Specifically, if the second rotation speed is less than the first rotation speed, driving the internal drive dc fan to operate with a second VSP voltage, where the second VSP voltage is greater than the first VSP voltage, specifically including: and when the rotating speed of the built-in driving direct current fan driven by the second VSP voltage is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
If the second rotating speed is greater than or equal to the first rotating speed, periodically detecting the rotating speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a second preset time under the first VSP voltage; and when determining that the rotating speeds of the built-in driving direct current fan are detected to be greater than or equal to the first rotating speed for M times continuously, increasing the VSP voltage for driving the built-in driving direct current fan to operate.
If the second rotating speed is less than the first rotating speed, periodically detecting the rotating speed of the built-in driving direct current fan when the built-in driving direct current fan operates at the second VSP voltage;
and when the rotating speed of the built-in driving direct current fan is detected to be less than the safe rotating speed for N times continuously, driving the built-in driving direct current fan to operate by the first VSP voltage, wherein N is an integer greater than 1.
When the second rotating speed is smaller than the first rotating speed, determining a rotating speed difference value between the first rotating speed and the second rotating speed; determining an increment of the VSP voltage according to the rotation speed difference value, and determining the second voltage according to the increment;
and after the built-in driving direct current fan operates for a third preset time under the second voltage, detecting a third rotating speed of the built-in driving direct current fan, and comparing the third rotating speed with the second rotating speed.
A starting method of a fan in an outdoor unit is applied to the outdoor unit, the outdoor unit comprises a built-in driving direct current fan, and the starting method comprises the following steps: receiving a starting signal for indicating the start operation of the built-in driving direct current fan, determining a first rotating speed of the built-in driving direct current fan, receiving an initial VSP voltage, and judging whether the first rotating speed is greater than or equal to a safe rotating speed, wherein the first rotating speed is the rotating speed of the built-in driving direct current fan which is not driven by the initial VSP voltage, if the first rotating speed is greater than or equal to the safe rotating speed, operating for a first preset time under the initial VSP voltage, determining a second rotating speed of the built-in driving direct current fan, judging whether the second rotating speed is greater than or equal to the first rotating speed, if the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage, the first VSP voltage is greater than the initial VSP voltage, if the second rotating speed is less than the first rotating speed, driving the built-in driving direct current fan to operate by the second VSP voltage, the second VSP voltage is greater than the first VSP voltage, and if, the built-in driving direct current fan is driven to operate at the first VSP voltage. Therefore, whether the built-in driving direct current fan rotates forwards or reversely is judged according to the rotating speed of the built-in driving direct current fan, the condition that the built-in driving direct current fan is judged by the outdoor unit to be in fault by mistake is avoided, when the fan is confirmed to rotate reversely and start against the wind, the rotating speed of the fan is adjusted by the second VSP voltage which is larger than the driving VSP voltage for driving the fan to normally operate, the reverse rotation and reverse running state is quickly adjusted, the reverse running time is shortened, the safe starting of the built-in driving direct current fan in the reverse wind state is realized, the heat exchange of the compressor in the reverse rotation of the built-in driving direct current fan is avoided, the load after the outdoor unit is started is reduced, and the.
The above description mainly introduces the solution provided by the embodiment of the present invention from the perspective of the outdoor unit. It is understood that the outdoor unit includes hardware structures and/or software modules for performing the above functions. Those of skill in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software, in conjunction with the exemplary algorithm steps described in connection with the embodiments disclosed herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiment of the present invention, the outdoor unit may be divided into the functional modules according to the above method, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each function module according to each function, fig. 3 shows another possible composition diagram of the outdoor unit in the above embodiment, as shown in fig. 3, the outdoor unit may include: a built-in driving direct current fan, a receiving unit 31, a first judging unit 32, a first processing unit 33, a second judging unit 34 and a second processing unit 35;
a receiving unit 31, configured to receive a start signal indicating that the internal driving dc fan starts to operate, and further configured to receive an initial VSP voltage;
a first determination unit 32 configured to determine whether a first rotation speed is greater than or equal to a safe rotation speed, where the first rotation speed is a rotation speed at which the internal driving dc fan is not driven by the initial VSP voltage;
the first processing unit 33 is configured to determine a second rotation speed of the internal driving dc fan after the first rotation speed is greater than or equal to the safe rotation speed and the first preset time is elapsed under the initial VSP voltage; if the first rotating speed is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by using the first VSP voltage;
a second determination unit 34 for determining whether the second rotation speed is greater than or equal to the first rotation speed;
the second processing unit 35 is configured to drive the internal drive dc fan to operate with a first VSP voltage if the second rotation speed is greater than or equal to the first rotation speed, where the first VSP voltage is greater than the initial VSP voltage; and if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to operate by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage.
It should be noted that all relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.
The outdoor unit according to the embodiment of the present invention is configured to execute the method for starting the fan in the outdoor unit, so that the same effect as the method for starting the fan in the outdoor unit can be achieved.
In case of using an integrated unit, fig. 4 shows another possible composition diagram of the outdoor unit according to the above embodiment. As shown in fig. 4, the outdoor unit includes: a processing module 41, a communication module 42 and a storage module 43.
The processing module 41 is used for controlling and managing the actions of the outdoor unit, for example, the processing module 41 is used for supporting the outdoor unit to perform step 201, step 202, step 203, step 204, step 205 in fig. 2, and/or other processes for the technology described herein. The communication module 42 is used for supporting the communication between the outdoor unit and other network entities. And a storage module 43 for storing program codes and data of the outdoor unit.
The processing module 41 may be the processor in fig. 1. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The communication module 42 may be the communication interface of fig. 1. The storage module 43 may be the memory of fig. 1.
Through the above description of the embodiments, it is clear to those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the above function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the above described functions.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical functional division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another device, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, that is, may be located in one place, or may be distributed in a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present invention may be essentially or partially contributed to by the prior art, or all or part of the technical solution may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip, a chip, or the like) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions within the technical scope of the present invention are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (11)
1. A starting method of a fan in an outdoor unit is applied to the outdoor unit, the outdoor unit comprises a built-in driving direct current fan, and the method is characterized by comprising the following steps:
receiving a starting signal for indicating the built-in driving direct current fan to start work;
determining a first rotating speed of the built-in driving direct current fan, receiving an initial VSP voltage, and judging whether the first rotating speed is greater than or equal to a safe rotating speed or not, wherein the first rotating speed is a rotating speed of the built-in driving direct current fan which is not driven by the initial VSP voltage;
if the first rotating speed is greater than or equal to the safe rotating speed, determining a second rotating speed of the built-in driving direct current fan after the built-in driving direct current fan runs for a first preset time under the initial VSP voltage;
judging whether the second rotating speed is greater than or equal to the first rotating speed;
if the second rotating speed is greater than or equal to the first rotating speed, driving the built-in driving direct current fan to run by using a first VSP voltage, wherein the first VSP voltage is greater than the initial VSP voltage;
if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to run by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage;
and if the first rotating speed is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
2. The method of claim 1, wherein if the second rotation speed is lower than the first rotation speed, driving the internal driving dc fan to operate with a second VSP voltage, where the second VSP voltage is higher than the first VSP voltage, specifically comprises:
and when the rotating speed of the built-in driving direct current fan driven by the second VSP voltage is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
3. The outdoor unit of claim 1, wherein the method further comprises: if the second rotating speed is greater than or equal to the first rotating speed, periodically detecting the rotating speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a second preset time under the first VSP voltage;
and when determining that the rotating speeds of the built-in driving direct current fan are detected to be greater than or equal to the first rotating speed for M times continuously, increasing the VSP voltage for driving the built-in driving direct current fan to operate.
4. The outdoor unit of claim 2, wherein if the second rotational speed is lower than the first rotational speed, the rotational speed of the internal dc fan is periodically detected while the internal dc fan is operating at the second VSP voltage;
and when the rotating speed of the built-in driving direct current fan is detected to be less than the safe rotating speed for N times continuously, driving the built-in driving direct current fan to operate by the first VSP voltage, wherein N is an integer greater than 1.
5. The outdoor unit of claim 1, wherein the method further comprises:
when the second rotating speed is smaller than the first rotating speed, determining a rotating speed difference value between the first rotating speed and the second rotating speed; determining an increment of a VSP voltage from the rotational speed difference and determining the second VSP voltage from the increment;
detecting a third rotation speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a third preset time under the second VSP voltage, and comparing the third rotation speed with the second rotation speed.
6. An outdoor unit, characterized in that it comprises: the system comprises a built-in driving direct current fan, a receiving unit, a first judging unit, a first processing unit, a second judging unit and a second processing unit;
the receiving unit is used for receiving a starting signal for indicating the built-in driving direct current fan to start and work and is also used for receiving an initial VSP voltage;
the first judging unit is used for judging whether a first rotating speed is greater than or equal to a safe rotating speed or not, wherein the first rotating speed is a rotating speed of the built-in driving direct current fan, and the rotating speed is not driven by the initial VSP voltage;
the first processing unit is configured to determine a second rotation speed of the internal drive dc fan after operating at the initial VSP voltage for a first preset time if the first rotation speed is greater than or equal to the safe rotation speed; if the first rotating speed is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by using a first VSP voltage;
the second judging unit is configured to judge whether the second rotation speed is greater than or equal to the first rotation speed;
the second processing unit is configured to drive the internal drive dc fan to operate at a first VSP voltage if the second rotation speed is greater than or equal to the first rotation speed, where the first VSP voltage is greater than the initial VSP voltage; and if the second rotating speed is lower than the first rotating speed, driving the built-in driving direct current fan to run by using a second VSP voltage, wherein the second VSP voltage is higher than the first VSP voltage.
7. The outdoor unit of claim 6, wherein the second processing unit is specifically configured to: and when the rotating speed of the built-in driving direct current fan driven by the second VSP voltage is lower than the safe rotating speed, driving the built-in driving direct current fan to operate by the first VSP voltage.
8. The outdoor unit of claim 6, wherein the second processing unit is specifically configured to: periodically detecting the rotating speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a second preset time under the first VSP voltage; and when determining that the rotating speeds of the built-in driving direct current fan are detected to be greater than or equal to the first rotating speed for M times continuously, increasing the VSP voltage for driving the built-in driving direct current fan to operate.
9. The outdoor unit of claim 7, wherein the second processing unit is specifically configured to: periodically detecting the rotational speed of the internal driving direct current fan when the internal driving direct current fan operates at the second VSP voltage;
and when the rotating speed of the built-in driving direct current fan is detected to be less than the safe rotating speed for N times continuously, driving the built-in driving direct current fan to operate by the first VSP voltage, wherein N is an integer greater than 1.
10. The outdoor unit of claim 6, wherein the second processing unit is specifically configured to:
determining a rotation speed difference value of the first rotation speed and the second rotation speed; determining an increment of a VSP voltage from the rotational speed difference and determining the second VSP voltage from the increment;
detecting a third rotation speed of the built-in driving direct current fan after the built-in driving direct current fan operates for a third preset time under the second VSP voltage, and comparing the third rotation speed with the second rotation speed.
11. An outdoor unit, comprising: a processor, a memory, a communication interface, and a communication bus;
the processor is connected to the memory and the communication interface through the communication bus, the memory is used for storing computer execution instructions, and when the outdoor unit is operated, the processor executes the computer execution instructions stored in the memory, so that the outdoor unit performs the method for starting the fan in the outdoor unit according to any one of claims 1 to 5.
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| CN201811565800.2A CN109708265B (en) | 2018-12-20 | 2018-12-20 | Starting method of fan in outdoor unit and outdoor unit |
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| CN113944996A (en) * | 2020-07-17 | 2022-01-18 | 海信（山东）空调有限公司 | Air conditioner and outdoor fan control method |
| CN114060295A (en) * | 2020-07-31 | 2022-02-18 | 广东芬尼克兹节能设备有限公司 | Fan starting control method and device, electronic equipment and storage medium |
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