CN110108006A

CN110108006A - Progress control method, device, air conditioner and readable storage medium storing program for executing

Info

Publication number: CN110108006A
Application number: CN201910379452.8A
Authority: CN
Inventors: 李仲珍; 许永锋; 李宏伟; 李洪生; 卢健洪; 马进; 张秋晨
Original assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea HVAC Equipment Co Ltd
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2019-08-09
Anticipated expiration: 2039-05-08
Also published as: CN110108006B

Abstract

The present invention provides a kind of progress control method, device, air conditioner and readable storage medium storing program for executing, wherein progress control method includes: to acquire the inlet air temperature of air conditioner indoor unit and the surface temperature of leaving air temp and heat exchanger respectively；Determine that current temperature profile ratio, current temperature profile ratio correspond to the current heat exchange efficiency of heat exchanger according to inlet air temperature, the surface temperature of heat exchanger and leaving air temp；The adjustment parameter of generation blower is determined whether according to the relationship between current temperature profile ratio and preset target temperature characteristic ratio, target temperature characteristic ratio corresponds to the target heat exchange efficiency being adapted to target air volume；If generating adjustment parameter, the revolving speed of blower is adjusted according to adjustment parameter.According to the technique and scheme of the present invention, make the computation model in control process more simplified, therefore implementation is more convenient, and based on the corresponding adjusting for executing rotation speed of fan of collected temperature value, it may have higher reliability.

Description

Progress control method, device, air conditioner and readable storage medium storing program for executing

Technical field

The present invention relates to air-conditioner field, in particular to a kind of progress control method, a kind of operating control device, A kind of air conditioner and a kind of computer readable storage medium.

Background technique

Since air quantity is the key factor for influencing air-conditioner system refrigeration or heating effect, if air-out volume is not It is able to maintain constant, will have a direct impact on refrigeration or heating effect, in the related technology, air conditioner indoor unit is in the process of running using passing Sensor monitors rotation speed of fan, and current air quantity and static pressure are then obtained according to the characteristic curve of blower, finally according to required quiet Pressure and air quantity reversely adjust the revolving speed of motor, to realize the control output of permanent wind amount, the control method presently, there are defect packet It includes:

(1) control process is more complicated；

(2) since the control precision of the program is heavily dependent on the precision of static pressure transducer, for static pressure The dependence of sensor is relatively high.

Summary of the invention

The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.

For this purpose, it is an object of the present invention to provide a kind of progress control methods.

It is another object of the present invention to provide a kind of operating control devices.

It is yet a further object of the present invention to provide a kind of air conditioners.

Yet another object of the invention is that providing a kind of computer readable storage medium.

To achieve the goals above, the technical solution of first aspect present invention provides a kind of progress control method, comprising: The inlet air temperature of the air conditioner indoor unit and the surface temperature of leaving air temp and the heat exchanger are acquired respectively；According to described Inlet air temperature, the surface temperature and the leaving air temp determine current temperature profile ratio, the current temperature profile Ratio corresponds to the current heat exchange efficiency of the heat exchanger；According to the current temperature profile ratio and preset target temperature Relationship between characteristic ratio determines whether to generate the adjustment parameter of the blower, the target temperature characteristic ratio correspond to The target heat exchange efficiency of target air volume adaptation；If generating the adjustment parameter, the blower is adjusted according to the adjustment parameter Revolving speed, air-out volume is adjusted to the target air volume.

In the technical scheme, by acquire air-flow flow path on different location temperature, with according to before heat exchange temperature, The surface temperature of temperature and heat exchanger after heat exchange calculates real time temperature characteristic ratio, and temperature profile ratio is specifically as follows One ratio, to indicate the heat exchange efficiency of current heat exchanger, meanwhile, in order to realize that permanent wind measures wind or measures wind close to permanent wind, Goal-selling air quantity is needed, corresponding target temperature characteristic ratio can determine according to target air volume, with further by comparing Whether real time temperature characteristic ratio matches with target temperature characteristic ratio, come judge current air-out volume whether with target air volume Unanimously, thus when determining inconsistent, the corresponding regulating command for generating rotation speed of fan, regulating command includes adjustment parameter, with base Rotation speed of fan is adjusted in the adjustment parameter, is reached eventually by outlet air of the realization based on target air volume close to permanent wind amount control The purpose of system.

By acquisition motor speed in compared with the existing technology, air quantity and static pressure are determined in conjunction with the indicatrix of blower, Again based on air quantity compared with static pressure returns to the mode of adjustment motor speed, it is only necessary to be based on several collected position temperature computations Obtained temperature profile ratio is to determine whether need to adjust rotation speed of fan, on the one hand, makes computation model in control process more Simplify, therefore implement more convenient, another aspect, due to not needing to determine or acquire static pressure, is passed without setting pressure Sensor, a kind of technological means of the temperature acquisition mode based on temperature sensor as maturation, relatively reliability is also higher, then On the one hand, determined since this programme is based primarily upon temperature, namely without the concern for static pressure, therefore can not be by air duct structure Limitation, so as to wider application range.

In addition, those skilled in the art can understand that, temperature profile ratio is by the temperature before heat exchange, heat exchange Relativeness between the temperature values such as the surface temperature of temperature and heat exchanger afterwards indicates a ratio of heat exchange efficiency, the ratio Value and the air quantity of the outlet air of the heat exchange efficiency and blower of heat exchanger are positively correlated, in order to calculate real time temperature characteristic ratio, it is multiple not Temperature with position needs to take into account gas flow temperature, the surface temperature of the gas flow temperature after heat exchange and heat exchanger before heat exchange, with base Achieve the purpose that calculate real time temperature characteristic ratio in above-mentioned multiple temperature values.

Specifically, by the way that temperature sensor is arranged in return air inlet, air outlet and heat exchanger surface, to realize multiple positions Acquisition function.

Specifically, in a heating mode, return air inlet temperature is usually less than air outlet temperature, and air outlet temperature can be less than The surface temperature of heat exchanger is based on the relativeness, then can calculate real time temperature characteristic ratio defined in the application.

And in cooling mode, return air inlet temperature is typically larger than air outlet temperature, and air outlet temperature can be greater than heat exchange The surface temperature of device is based on the relativeness, can also calculate real time temperature characteristic ratio defined in the application.

In the above-mentioned technical solutions, it is preferable that true according to the inlet air temperature, the surface temperature and the leaving air temp The fixed real time temperature characteristic ratio, specifically includes: the surface temperature and the difference changed between wind mean value is determined as First amount to be compared；Difference between the leaving air temp and the inlet air temperature is determined as the second amount to be compared；It will be described Ratio between first amount to be compared and second amount to be compared is determined as the current temperature profile ratio, realizes Journey can be indicated by the first calculation formula, to calculate the real time temperature characteristic ratio according to the first company:

Calculate the real time temperature characteristic ratio, whereinFor the real time temperature characteristic ratio, T1 is the air inlet Temperature, TA are the leaving air temp, and T2 is the surface temperature of the heat exchanger.

Wherein,For the mean temperature of air inlet/outlet, that is, wind mean value is changed, for indicating,(first to Comparative quantity) then illustrate that the actual exchange capability of heat of evaporator, TA-T1 (the second amount to be compared) they are the temperature difference of heat exchange front and back, it uses In indicating actual heat exchange amount, real time temperature characteristic ratio is indicated using the ratio, to use calculated real time temperature feature Ratio and target temperature characteristic ratio execute matching operation, and determine whether current air-out volume reaches according to matching result Whether target air volume needs further to adjust rotation speed of fan.

In any of the above-described technical solution, it is preferable that described in the inlet air temperature for acquiring the air conditioner indoor unit respectively With before the surface temperature of leaving air temp and the heat exchanger, further includes: the heat exchanger is determined according to the target air volume The target coefficient of heat transfer；The target temperature characteristic ratio is determined according to the target air volume and the target coefficient of heat transfer.

In the technical scheme, in order to determine target temperature characteristic ratio, it is necessary first to calculate corresponding with target air volume The target coefficient of heat transfer, then further target air volume and the target coefficient of heat transfer are substituted into preset calculation formula, to calculate Corresponding target temperature characteristic ratio is obtained, is compared in conjunction with real time temperature characteristic ratio, to determine the need for adjusting Rotation speed of fan determines whether to match based on the comparison between two temperature profile ratios, in the premise for guaranteeing control reliability Under, be conducive to the calculating process of simplified processor.

In any of the above-described technical solution, it is preferable that described according to the target air volume and the target coefficient of heat transfer Determine the target temperature characteristic ratio, specifically include: according to the target air volume, the target coefficient of heat transfer, atmospheric density, The heat exchange area of air specific heat and the heat exchanger determines the target temperature characteristic ratio, wherein the atmospheric density, The air specific heat and the target temperature characteristic ratio are positively correlated, and the heat exchange area and the target temperature characteristic ratio are negative It is related.

In any of the above-described technical solution, it is preferable that described according to the target air volume and the target coefficient of heat transfer The target temperature characteristic ratio is calculated, is specifically included: according to the second calculation formula:

Calculate the target temperature characteristic ratio, whereinFor the target temperature characteristic ratio, q_v2For the target Air quantity, h are the target coefficient of heat transfer, and ρ is atmospheric density, C_PFor air specific heat, the heat exchange area of heat exchanger described in A.

Specifically, those skilled in the art can understand that, have following two for the heat exchange amount of room air conditioner A calculation formula:

Q=q_v·ρ·C_P·(TA-T1) (3)

Above-mentioned two formula is subjected to simultaneous, then is had:

In conjunction with the above-mentioned restriction to temperature profile ratio, temperature value is sorted out to one side of equation, other parameters are sorted out To the another side of equation, then have:

In formula (6), T^*When for current temperature profile ratio, q_v1Current air volume is corresponded to, if q_vFor target wind Amount is q_v2, then target temperature characteristic ratio, i.e. above-mentioned formula (2) can be calculated according to the formula on the right, and then can adopt When collecting the real time temperature of multiple positions, according to left side equation calculation real time temperature characteristic ratio, and the target according to setting Air quantity calculates target temperature characteristic ratio with the corresponding coefficient of heat transfer, according to real time temperature characteristic ratio and target temperature feature Relationship between ratio determines whether to carry out rotation speed of fan adjusting, to achieve the purpose that close to permanent Boiler pressure control.

In any of the above-described technical solution, it is preferable that the mesh for determining the heat exchanger according to the target air volume The coefficient of heat transfer is marked, specifically includes: determining the structural parameters of the heat exchanger according to the structure type of the heat exchanger；According to described Structural parameters, the target air volume and air physical parameter calculate the target coefficient of heat transfer.

In the technical scheme, since the structure of various heat exchange device is different, in the target heat exchange system for determining heat exchanger There is also difference, such as the pipe in only one direction of straight-line heat exchanger to arrange spacing when number, and louvered heat exchanger includes longitudinal Pipe arranges spacing and transverse pipe arranges spacing, therefore can be directed to the structure type of various heat exchange device, and different calculation formula can be set, It further include air physical parameter, so as to basis in addition to structural parameters corresponding with structure feature in different calculation formula Different calculation formula calculates the corresponding target coefficient of heat transfer and target is calculated further combined with preset target air volume Temperature profile ratio.

Specifically, for straight-line heat exchanger, the target coefficient of heat transfer can be calculated using the following equation.

For louvered heat exchanger, then the target coefficient of heat transfer can be calculated using the following equation.

Wherein,

H is the target coefficient of heat transfer, q_vFor the target air volume, D_cFor the heat exchange pipe outside diameter of the heat exchanger, v is sky Gas viscosity, A are the heat exchange area of the heat exchanger, F_pFor the spacing of fin of the heat exchanger, N is that the pipe of the heat exchanger is arranged Number, P_lSpacing is arranged for the longitudinal pipe of the heat exchanger, λ is air conduction coefficient, P_tSpacing is arranged for the transverse pipe of the heat exchanger, P_rFor Prandtl number.

By above-mentioned calculating process it is found that not needing to acquire for being adjusted in the control process of target air volume in the application Static pressure, on the one hand, real time temperature characteristic ratio is determined based on the measurement of multiple real time temperatures, changing based on different types of structure The identification of hot device and target air volume determine target temperature characteristic ratio, determine tool based on the comparison between two temperature profile ratios The rotation speed of fan of body adjusts strategy, achievees the purpose that control constant wind quantity outlet air by the adjusting of rotation speed of fan to realize.

In addition, being documented in document respectively for calculation formula (7) to (9) its derivation process, " plain fin heat exchange of heat pipe is passed The experimental study of heat and drag characteristic " and < Heat and momentum transfer for compact louvered Fin-and-tube heat exchangers in wet conditions > in, it is repeated no more in the application.

In any of the above-described technical solution, it is preferable that described according to the real time temperature characteristic ratio and target temperature Relationship between characteristic ratio determines whether to generate the adjustment parameter of the blower, specifically include: if the real time temperature feature Absolute difference between ratio and the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjusting ginseng of the blower Number.

In the technical scheme, rotation speed of fan is frequently adjusted in order to prevent, redundancy threshold value can be set, in real time temperature When absolute difference between characteristic ratio and target temperature characteristic ratio is less than or equal to redundancy threshold value, it can determine current Air-out volume reaches target air volume, does not need the adjusting for carrying out rotation speed of fan then at this time, and in real time temperature characteristic ratio and mesh When marking the absolute difference between temperature profile ratio greater than redundancy threshold value, then show current real time temperature characteristic ratio and target It is mismatched between temperature profile ratio, at this time by generating corresponding adjustment parameter, and rotation speed of fan is adjusted according to adjustment parameter, Reaching being adapted between real time temperature characteristic ratio and target temperature characteristic ratio, i.e., practical air-out volume reaches target air volume, And then the effect of constant air-out can be improved, to guarantee the usage experience of user.

In any of the above-described technical solution, it is preferable that if the real time temperature characteristic ratio and the target temperature The absolute difference spent between characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically include: if described Absolute difference is greater than the redundancy threshold value, and the real time temperature characteristic ratio is less than the target temperature characteristic ratio, then Control increases the revolving speed of the blower.

In the technical scheme, the absolute difference between real time temperature characteristic ratio and target temperature characteristic ratio is greater than Under the premise of redundancy threshold value, if real time temperature characteristic ratio is less than target temperature characteristic ratio, show that heat exchanger is actual at this time Heat exchange efficiency miss the mark heat exchange efficiency says i.e. actual air-out volume miss the mark air quantity from the angle of air quantity, at this time The raising of heat exchange efficiency is realized by promoting rotation speed of fan, to reach the mesh that actual air-out volume is promoted to target air volume , to realize the automatic control function of constant air-out.

In any of the above-described technical solution, it is preferable that if the real time temperature characteristic ratio and the target temperature The absolute difference spent between characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically include: if described Absolute difference is greater than the redundancy threshold value, and the real time temperature characteristic ratio is greater than the target temperature characteristic ratio, then Control reduces the revolving speed of the blower.

In the technical scheme, the absolute difference between real time temperature characteristic ratio and target temperature characteristic ratio is greater than Under the premise of redundancy threshold value, if real time temperature characteristic ratio is greater than target temperature characteristic ratio, show that heat exchanger is actual at this time Heat exchange efficiency has been more than target heat exchange efficiency, says that i.e. actual air-out volume has been more than target air volume from the angle of air quantity, at this time The reduction of heat exchange efficiency is realized by reducing rotation speed of fan, to reach the mesh that actual air-out volume is dropped to target air volume , to realize the automatic control function of constant air-out.

In addition, those skilled in the art is also understood that, due to that can only depend on temperature in a heating mode Adjusting, therefore the progress control method for realizing constant air-out Boiler pressure control in the application be used for heating mode phase Better effect can be reached for refrigeration mode.

The technical solution of the second aspect of the present invention provides a kind of operating control device, comprising: memory and processor, The memory, for storing the memory for storing program code, the processor, for calling said program code It executes: determining the real time temperature characteristic ratio of the heat exchanger according to multiple position temperature, the multiple position temperature is described Along the real time temperature of multiple location points of airflow direction distribution on air conditioner indoor unit；According to the real time temperature characteristic ratio and mesh Mark temperature profile ratio between relationship determine whether to generate the adjustment parameter of the blower, the target temperature characteristic ratio is Temperature profile ratio corresponding with target air volume；If generating the adjustment parameter, the wind is adjusted according to the adjustment parameter Air-out volume is adjusted to the target air volume and carries out constant air-out by the revolving speed of machine, wherein is indicated using temperature profile ratio The heat exchange efficiency of the heat exchanger.

Those skilled in the art can understand that temperature profile ratio is by temperature before heat exchange, after heat exchange Relativeness between the temperature values such as temperature and the surface temperature of heat exchanger indicates a ratio of heat exchange efficiency, the ratio with The air quantity of the outlet air of the heat exchange efficiency and blower of heat exchanger is positively correlated, in order to calculate real time temperature characteristic ratio, multiple and different positions The temperature set needs to take into account gas flow temperature, the surface temperature of the gas flow temperature after heat exchange and heat exchanger before heat exchange, based on upper Multiple temperature values are stated to achieve the purpose that calculate real time temperature characteristic ratio.

In the above-mentioned technical solutions, it is preferable that the processor is specifically used for: acquiring the air inlet of the indoor unit respectively Temperature, the surface temperature of heat exchanger and leaving air temp；It is true according to the inlet air temperature, the surface temperature and the leaving air temp The fixed real time temperature characteristic ratio.

In the technical scheme, multiple position temperature include the surface temperature of return air inlet temperature, air outlet temperature and heat exchanger Degree, by the way that temperature sensor is arranged in return air inlet, air outlet and heat exchanger surface, to realize the acquisition function of multiple positions.

The real time temperature characteristic ratio is determined according to the inlet air temperature, the surface temperature and the leaving air temp, It specifically includes: according to the first calculation formula:

Calculate the real time temperature characteristic ratio, whereinFor the real time temperature characteristic ratio, T1 is the air inlet temperature Degree, TA are the leaving air temp, and T2 is the surface temperature of the heat exchanger.

Wherein,For the mean temperature of air inlet/outlet, that is, wind mean value is changed, for indicating,Then illustrate The actual exchange capability of heat of evaporator, TA-T1 is the temperature difference of heat exchange front and back, for indicating actual heat exchange amount, using the ratio Real time temperature characteristic ratio is indicated, to match using calculated real time temperature characteristic ratio with the execution of target temperature characteristic ratio Operation, and determine whether current air-out volume reaches target air volume according to matching result, i.e., whether need further to adjust Rotation speed of fan.

In any of the above-described technical solution, it is preferable that the processor is specifically used for: true according to the target air volume The target coefficient of heat transfer of the fixed heat exchanger；The target temperature is determined according to the target air volume and the target coefficient of heat transfer Characteristic ratio.

In any of the above-described technical solution, it is preferable that the processor is specifically used for: according to the target air volume, institute The heat exchange area for stating the target coefficient of heat transfer, atmospheric density, air specific heat and the heat exchanger determines the target temperature feature Ratio, wherein the atmospheric density, the air specific heat and the target temperature characteristic ratio are positively correlated, the heat exchange area It is negatively correlated with the target temperature characteristic ratio.

Q=q_v·ρ·C_P·(TA-T1) (3)

Above-mentioned two formula is subjected to simultaneous, then is had:

In any of the above-described technical solution, it is preferable that the processor is specifically used for: according to the knot of the heat exchanger Structure type determines the structural parameters of the heat exchanger；According to the structural parameters, the target air volume and air physical parameter Calculate the target coefficient of heat transfer.

Wherein,

H is the target coefficient of heat transfer, q_vFor the target air volume, D_cFor the heat exchange pipe outside diameter of the heat exchanger, v is sky Gas viscosity, A are the heat exchange area of the heat exchanger, F_pFor the spacing of fin of the heat exchanger, N is that the pipe of the heat exchanger is arranged Number, P_lSpacing, P are arranged for the longitudinal pipe of the heat exchanger_tSpacing is arranged for the transverse pipe of the heat exchanger, λ is air conduction coefficient, P_rFor Prandtl number.

In any of the above-described technical solution, it is preferable that the processor is specifically used for: if the real time temperature feature Absolute difference between ratio and the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjusting ginseng of the blower Number.

In any of the above-described technical solution, it is preferable that the processor is specifically used for: if the absolute difference is greater than The redundancy threshold value, and the real time temperature characteristic ratio is less than the target temperature characteristic ratio, then controls described in increase The revolving speed of blower.

In any of the above-described technical solution, it is preferable that the processor is specifically used for: if the absolute difference is greater than The redundancy threshold value, and the real time temperature characteristic ratio is greater than the target temperature characteristic ratio, then controls described in reduction The revolving speed of blower.

The technical solution of the third aspect of the present invention provides a kind of air conditioner, comprising: such as any of the above-described technical solution Defined by operating control device.

The technical solution of the fourth aspect of the present invention provides a kind of computer readable storage medium, is stored thereon with calculating Machine program realizes the step of any of the above-described progress control method limits when computer program is executed by processor.

According to the technical solution of the present invention, by being set in air conditioner indoor unit the temperature sensor of different location on air duct Collected real time temperature carries out arrangement calculating, obtains temperature profile ratio relevant to heat exchanger for air-conditioner indoor machine air quantity is passed through Example, the adjustable strategies of rotation speed of fan are determined in conjunction with target temperature characteristic ratio corresponding with target air volume, make air conditioning chamber to reach The purpose that the air-out volume of interior machine is kept constant, since obtained temperature profile ratio is unrelated with static pressure, in difference Machine duct length only needs controlling feature temperature to reach target value it is ensured that air quantity reaches requirement, and can be realized interior machine air hose The automatic identification of static pressure, the control program control process is simple and convenient, easy to implement, can realize under extensive hydrostatic pressure condition The output of permanent wind amount.

Advantages of the present invention will provide in following description section, partially will become apparent from the description below, or Practice through the invention is recognized.

Detailed description of the invention

Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures Obviously and it is readily appreciated that, in which:

Fig. 1 shows the schematic flow diagram of progress control method according to an embodiment of the invention；

Fig. 2 shows the structural schematic diagrams of air conditioner indoor unit according to an embodiment of the invention；

Fig. 3 shows the schematic block diagram of the operating control device of embodiment according to the present invention.

Specific embodiment

To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application Feature in example and embodiment can be combined with each other.

In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below Specific embodiment limitation.

The specific embodiment that control program is run in the application is described below with reference to Fig. 1 and Fig. 2.

As shown in Fig. 2, the operation control program in the application can be applied to the Interior Space in central air conditioning system It adjusts in device 20, heat exchanger 202 and blower (not shown) is provided in room air conditioner 20, is at least set on room air conditioner 20 It is equipped with the first temperature sensor 204, second temperature sensor 206 and third temperature sensor 208, wherein the first temperature sensing Device 204 is used for the tube temperature T2 of heat collecting exchanger, third temperature sensing for acquiring inlet air temperature T1, second temperature sensor 206 Device 208 is for acquiring leaving air temp TA, in one preferably embodiment, the real time temperature characteristic ratio that is limited in the application It can be determined based on above three position temperature.

As shown in Figure 1, progress control method according to an embodiment of the invention, comprising:

Step 102, the inlet air temperature of the air conditioner indoor unit and the table of leaving air temp and the heat exchanger are acquired respectively Face temperature；

Step 104, current temperature profile is determined according to the inlet air temperature, the surface temperature and the leaving air temp Ratio, the current temperature profile ratio correspond to the current heat exchange efficiency of the heat exchanger；

Step 106, according to the relationship between the current temperature profile ratio and preset target temperature characteristic ratio Determine whether to generate the adjustment parameter of the blower, the target temperature characteristic ratio corresponds to the target being adapted to target air volume Heat exchange efficiency；

Step 108, if generating the adjustment parameter, the revolving speed of the blower is adjusted according to the adjustment parameter, it will Air-out volume is adjusted to the target air volume.

In this embodiment, by acquire air-flow flow path on different location temperature, with according to before heat exchange temperature, change The surface temperature of temperature and heat exchanger after heat calculates real time temperature characteristic ratio, and temperature profile ratio is specifically as follows one A ratio, to indicate the heat exchange efficiency of current heat exchanger, meanwhile, in order to realize that permanent wind measures wind or measures wind close to permanent wind, need Goal-selling air quantity is wanted, corresponding target temperature characteristic ratio can determine according to target air volume, further by comparing real When temperature profile ratio whether matched with target temperature characteristic ratio, come judge current air-out volume whether with target air volume one It causes, so that the corresponding regulating command for generating rotation speed of fan, regulating command includes adjustment parameter, to be based on when determining inconsistent Rotation speed of fan is adjusted in the adjustment parameter, reaches eventually by outlet air of the realization based on target air volume close to permanent Boiler pressure control Purpose.

As shown in Fig. 2, specifically, by the way that temperature sensor is arranged in return air inlet, air outlet and heat exchanger surface, with reality The acquisition function of existing multiple positions.

In the above embodiment, it is preferable that being determined according to the inlet air temperature, the surface temperature and the leaving air temp The real time temperature characteristic ratio, specifically includes: the surface temperature and the difference changed between wind mean value are determined as One amount to be compared；Difference between the leaving air temp and the inlet air temperature is determined as the second amount to be compared；By described Ratio between one amount to be compared and second amount to be compared is determined as the current temperature profile ratio, realizes process It can be indicated by the first calculation formula, to calculate the real time temperature characteristic ratio according to the first company:

Calculate the real time temperature characteristic ratio, whereinFor the real time temperature characteristic ratio.

In any of the above-described embodiment, it is preferable that it is described the inlet air temperature for acquiring the air conditioner indoor unit respectively with Before the surface temperature of leaving air temp and the heat exchanger, further includes: determine the mesh of the heat exchanger according to the target air volume Mark the coefficient of heat transfer；The target temperature characteristic ratio is determined according to the target air volume and the target coefficient of heat transfer.

In this embodiment, in order to determine target temperature characteristic ratio, it is necessary first to calculate corresponding with target air volume Then the target coefficient of heat transfer further substitutes into target air volume and the target coefficient of heat transfer in preset calculation formula, to calculate It to corresponding target temperature characteristic ratio, is compared in conjunction with real time temperature characteristic ratio, to determine the need for adjusting wind Machine revolving speed determines whether to match based on the comparison between two temperature profile ratios, under the premise of guaranteeing to control reliability, Be conducive to the calculating process of simplified processor.

In any of the above-described embodiment, it is preferable that described true according to the target air volume and the target coefficient of heat transfer The fixed target temperature characteristic ratio, specifically includes: according to the target air volume, the target coefficient of heat transfer, atmospheric density, sky The heat exchange area of gas specific heat and the heat exchanger determines the target temperature characteristic ratio, wherein the atmospheric density, institute It states air specific heat and the target temperature characteristic ratio is positively correlated, the heat exchange area and the target temperature characteristic ratio negative It closes.

In any of the above-described embodiment, it is preferable that described according to the target air volume and the target coefficient of heat transfer meter The target temperature characteristic ratio is calculated, is specifically included: the target temperature characteristic ratio is calculated according to the second calculation formula, second Calculation formula are as follows:

Wherein,For the target temperature characteristic ratio.

Specifically, those skilled in the art can understand that, have following two for the heat exchange amount Q of room air conditioner A calculation formula:

Q=Q_v·ρ·C_P·(TA-T1) (3)

Above-mentioned two formula is subjected to simultaneous, then obtains formula (5):

In conjunction with the above-mentioned restriction to temperature profile ratio, temperature value is sorted out to one side of equation, other parameters are sorted out To the another side of equation, then temperature profile ratio T is obtained^*Calculation formula (6):

In formula (6), T^*When for current temperature profile ratio, q_v1Current air volume is corresponded to, if q_vFor target wind Amount is q_v2, then target temperature characteristic ratio, i.e. above-mentioned formula (2) can be calculated according to the formula on the right, it is multiple collecting When the real time temperature of position, according to left side equation calculation real time temperature characteristic ratio, and according to the target air volume of setting with it is right The coefficient of heat transfer answered calculates target temperature characteristic ratio, according between real time temperature characteristic ratio and target temperature characteristic ratio Relationship determine whether to carry out rotation speed of fan adjusting, to achieve the purpose that close to permanent Boiler pressure control.

In any of the above-described embodiment, it is preferable that the target for determining the heat exchanger according to the target air volume The coefficient of heat transfer specifically includes: the structural parameters of the heat exchanger are determined according to the structure type of the heat exchanger；According to the knot Structure parameter, the target air volume and air physical parameter calculate the target coefficient of heat transfer.

In this embodiment, since the structure of various heat exchange device is different, in the target coefficient of heat transfer for determining heat exchanger When there is also difference, for example the pipe in only one direction of straight-line heat exchanger arranges spacing, and louvered heat exchanger includes longitudinal pipe It arranges spacing and transverse pipe arranges spacing, therefore the structure type of various heat exchange device can be directed to, different calculation formula can be set, no It further include air physical parameter in addition to structural parameters corresponding with structure feature in same calculation formula, so as to according to not Same calculation formula calculates the corresponding target coefficient of heat transfer, and further combined with preset target air volume, target temperature is calculated Spend characteristic ratio.

The meaning that symbol of the calculation formula (1) into calculation formula (9) indicates is as shown in table 1.

Table 1

Symbol	Meaning
		T1	The inlet air temperature of indoor unit
TA	The leaving air temp of indoor unit
		T2	The middle portion temperature of indoor set heat exchanger
Q	The heat exchange amount of indoor unit
		q_V	The air-out volume of indoor unit
ρ	Atmospheric density
		C_P	Air specific heat
v	Air viscosity
		λ	Air conduction coefficient
h	The coefficient of heat transfer of heat exchanger air side
		A	The heat exchange area of heat exchanger air side
F_p	Spacing of fin
		D_c	The heat exchange pipe outside diameter of heat exchanger
N	Pipe number of rows
		P_l	Longitudinal pipe arranges spacing
P_t	Transverse pipe arranges spacing
		L_p	Blinds projected length
P_r	Prandtl number

In any of the above-described embodiment, it is preferable that described special according to the real time temperature characteristic ratio and target temperature Relationship between sign ratio determines whether to generate the adjustment parameter of the blower, specifically include: if the real time temperature aspect ratio Absolute difference between example and the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower.

In this embodiment, rotation speed of fan is frequently adjusted in order to prevent, redundancy threshold value can be set, in real time temperature spy When absolute difference between sign ratio and target temperature characteristic ratio is less than or equal to redundancy threshold value, it can determine current to go out Wind air quantity reaches target air volume, does not need the adjusting for carrying out rotation speed of fan then at this time, and in real time temperature characteristic ratio and target When absolute difference between temperature profile ratio is greater than redundancy threshold value, then show current real time temperature characteristic ratio and target temperature It is mismatched between degree characteristic ratio, at this time by generating corresponding adjustment parameter, and rotation speed of fan is adjusted according to adjustment parameter, reached To being adapted between real time temperature characteristic ratio and target temperature characteristic ratio, i.e., practical air-out volume reaches target air volume, into And the effect of constant air-out can be improved, to guarantee the usage experience of user.

In any of the above-described embodiment, it is preferable that if the real time temperature characteristic ratio and the target temperature Absolute difference between characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically include: if described exhausted The redundancy threshold value is greater than to difference, and the real time temperature characteristic ratio is less than the target temperature characteristic ratio, then controls System increases the revolving speed of the blower.

In this embodiment, the absolute difference between real time temperature characteristic ratio and target temperature characteristic ratio is greater than superfluous Under the premise of remaining threshold value, if real time temperature characteristic ratio is less than target temperature characteristic ratio, shows that heat exchanger is actual at this time and change Thermal efficiency miss the mark heat exchange efficiency is said i.e. actual air-out volume miss the mark air quantity from the angle of air quantity, is led at this time The raising for promoting rotation speed of fan to realize heat exchange efficiency is crossed, to reach the mesh that actual air-out volume is promoted to target air volume , to realize the automatic control function of constant air-out.

In any of the above-described embodiment, it is preferable that if the real time temperature characteristic ratio and the target temperature Absolute difference between characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically include: if described exhausted The redundancy threshold value is greater than to difference, and the real time temperature characteristic ratio is greater than the target temperature characteristic ratio, then controls System reduces the revolving speed of the blower.

In this embodiment, the absolute difference between real time temperature characteristic ratio and target temperature characteristic ratio is greater than superfluous Under the premise of remaining threshold value, if real time temperature characteristic ratio is greater than target temperature characteristic ratio, shows that heat exchanger is actual at this time and change The thermal efficiency has been more than target heat exchange efficiency, says that i.e. actual air-out volume has been more than target air volume from the angle of air quantity, leads at this time The reduction for reducing rotation speed of fan to realize heat exchange efficiency is crossed, to reach the mesh that actual air-out volume is dropped to target air volume , to realize the automatic control function of constant air-out.

As shown in figure 3, the operating control device 300 of embodiment according to the present invention, comprising: memory 304 and processor 302, the memory 304, for storing the memory 304 for storing program code, the processor 302, for adjusting It is executed with said program code: determining the real time temperature characteristic ratio of the heat exchanger according to multiple position temperature, it is the multiple Position temperature is on the air conditioner indoor unit along the real time temperature of multiple location points of airflow direction distribution；According to the real-time temperature Relationship between degree characteristic ratio and target temperature characteristic ratio determines whether to generate the adjustment parameter of the blower, the target Temperature profile ratio is temperature profile ratio corresponding with target air volume；If generating the adjustment parameter, according to the adjusting Air-out volume is adjusted to the target air volume and carries out constant air-out by the revolving speed of blower described in parameter regulation, wherein using temperature Degree characteristic ratio indicates the heat exchange efficiency of the heat exchanger.

In the above embodiment, it is preferable that the processor 302, is specifically used for: acquiring the air inlet of the indoor unit respectively Temperature, the surface temperature of heat exchanger and leaving air temp；It is true according to the inlet air temperature, the surface temperature and the leaving air temp The fixed real time temperature characteristic ratio.

In this embodiment, multiple position temperature include the surface temperature of return air inlet temperature, air outlet temperature and heat exchanger, By the way that temperature sensor is arranged in return air inlet, air outlet and heat exchanger surface, to realize the acquisition function of multiple positions.

As shown in figure 3, operating control device 300 further include: the first temperature sensor 204, second temperature sensor 206 with And third temperature sensor 208, wherein the first temperature sensor 204 is for acquiring inlet air temperature T1, second temperature sensor 206 For the tube temperature T2 of heat collecting exchanger, third temperature sensor 208 is for acquiring leaving air temp TA.

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: true according to the target air volume The target coefficient of heat transfer of the fixed heat exchanger；The target temperature is determined according to the target air volume and the target coefficient of heat transfer Characteristic ratio.

In this embodiment, in order to determine target temperature characteristic ratio, it is necessary first to calculate corresponding with target air volume Then the target coefficient of heat transfer further substitutes into target air volume and the target coefficient of heat transfer in preset calculation formula, to calculate It to corresponding target temperature characteristic ratio, is compared in conjunction with real time temperature characteristic ratio, to determine the need for adjusting wind Machine revolving speed determines whether to match based on the comparison between two temperature profile ratios, under the premise of guaranteeing to control reliability, Be conducive to the calculating process of simplified processor 302.

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: according to the target air volume, The target coefficient of heat transfer, atmospheric density, air specific heat and the heat exchanger heat exchange area, determine that the target temperature is special Sign ratio, wherein the atmospheric density, the air specific heat and the target temperature characteristic ratio are positively correlated, the heat-transfer surface It is long-pending negatively correlated with the target temperature characteristic ratio.

In any of the above-described embodiment, it is preferable that described according to the target air volume and the target coefficient of heat transfer meter The target temperature characteristic ratio is calculated, is specifically included: according to the second calculation formula:

Q=q_v·ρ·C_P·(TA-T1) (3)

Above-mentioned two formula is subjected to simultaneous, then is had:

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: according to the knot of the heat exchanger Structure type determines the structural parameters of the heat exchanger；According to the structural parameters, the target air volume and air physical parameter Calculate the target coefficient of heat transfer.

Wherein,

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: if the real time temperature feature Absolute difference between ratio and the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjusting ginseng of the blower Number.

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: if the absolute difference is greater than The redundancy threshold value, and the real time temperature characteristic ratio is less than the target temperature characteristic ratio, then controls described in increase The revolving speed of blower.

In any of the above-described embodiment, it is preferable that the processor 302 is specifically used for: if the absolute difference is greater than The redundancy threshold value, and the real time temperature characteristic ratio is greater than the target temperature characteristic ratio, then controls described in reduction The revolving speed of blower.

The air conditioner of embodiment according to the present invention, including operating control device 300 described in any of the above-described embodiment.

The structure diagram of the air conditioner of embodiment according to the present invention is as shown in Figure 2.

The computer readable storage medium of embodiment according to the present invention is stored thereon with computer program, computer journey The step of any of the above-described control method limits is realized when sequence is executed by processor.

Expression or logic and/or step described otherwise above herein in flow charts, for example, being considered use In the order list for the executable instruction for realizing logic function, may be embodied in any computer-readable medium, for Instruction execution system, device or equipment (such as computer based system, including the system of processor or other can be held from instruction The instruction fetch of row system, device or equipment and the system executed instruction) it uses, or combine these instruction execution systems, device or set It is standby and use.For the purpose of this specification, " computer readable storage medium ", which can be, any may include, store, communicating, propagating Or transfer program uses for instruction execution system, device or equipment or in conjunction with these instruction execution systems, device or equipment Device.The more specific example (non-exhaustive list) of computer-readable medium include the following: there are one or more wirings Electrical connection section (electronic device), portable computer diskette box (magnetic device), random access memory (RAM), read-only memory (ROM), erasable edit read-only storage (EPROM or flash memory), fiber device and portable optic disk is read-only deposits Reservoir (CDROM).In addition, computer-readable medium can even is that can on it the paper of print routine or other suitable be situated between Matter, because can then be edited, be interpreted or when necessary with other for example by carrying out optical scanner to paper or other media Suitable method is handled electronically to obtain program, is then stored in computer storage.

It should be appreciated that each section of the invention can be realized with hardware, software, firmware or their combination.Above-mentioned In embodiment, software that multiple steps or method can be executed in memory and by suitable instruction execution system with storage Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware Any one of column technology or their combination are realized: having a logic gates for realizing logic function to data-signal Discrete logic, with suitable combinational logic gate circuit specific integrated circuit, programmable gate array (PGA), scene Programmable gate array (FPGA) etc..

Those skilled in the art are understood that realize all or part of step that above-described embodiment method carries Suddenly be that relevant hardware can be instructed to complete by program, program can store in a kind of computer readable storage medium In, which when being executed, includes the steps that one or a combination set of embodiment of the method.

It, can also be in addition, each functional unit in each embodiment of the present invention can integrate in a processing module It is that each unit physically exists alone, can also be integrated in two or more units in a module.Above-mentioned integrated mould Block both can take the form of hardware realization, can also be realized in the form of software function module.If integrated module with The form of software function module is realized and when sold or used as an independent product, also can store computer-readable at one It takes in storage medium.

Storage medium mentioned above can be read-only memory, disk or CD etc..

These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification, Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

1. a kind of progress control method is suitable for air conditioner indoor unit, is provided with heat exchanger and blower in the air conditioner indoor unit, It is characterized in that, the progress control method includes:

The inlet air temperature of the air conditioner indoor unit and the surface temperature of leaving air temp and the heat exchanger are acquired respectively；

Current temperature profile ratio is determined according to the inlet air temperature, the surface temperature and the leaving air temp, it is described to work as Preceding temperature profile ratio corresponds to the current heat exchange efficiency of the heat exchanger；

Determine whether to generate according to the relationship between the current temperature profile ratio and preset target temperature characteristic ratio The adjustment parameter of the blower, the target temperature characteristic ratio correspond to the target heat exchange efficiency being adapted to target air volume；

If generating the adjustment parameter, the revolving speed of the blower is adjusted according to the adjustment parameter, air-out volume is adjusted To the target air volume.

2. progress control method according to claim 1, which is characterized in that described according to the inlet air temperature, the table Face temperature and the leaving air temp determine current temperature profile ratio, specifically include:

It is determined as the average value of the inlet air temperature and the leaving air temp to change wind mean value；

The surface temperature and the difference changed between wind mean value are determined as the first amount to be compared；

Difference between the leaving air temp and the inlet air temperature is determined as the second amount to be compared；

Ratio between described first amount to be compared and second amount to be compared is determined as the current temperature profile ratio Example.

3. progress control method according to claim 1, which is characterized in that described to acquire the air conditioner indoor unit respectively Inlet air temperature and leaving air temp and the heat exchanger surface temperature before, further includes:

The target coefficient of heat transfer of the heat exchanger is determined according to the target air volume；

The target temperature characteristic ratio is determined according to the target air volume and the target coefficient of heat transfer.

4. progress control method according to claim 3, which is characterized in that described according to target air volume determination The target coefficient of heat transfer of heat exchanger, specifically includes:

The structural parameters of the heat exchanger are determined according to the structure type of the heat exchanger；

The target coefficient of heat transfer is determined according to the structural parameters, the target air volume and air physical parameter.

5. progress control method according to claim 3, which is characterized in that described according to the target air volume and the mesh The mark coefficient of heat transfer determines the target temperature characteristic ratio, specifically includes:

According to the heat-transfer surface of the target air volume, the target coefficient of heat transfer, atmospheric density, air specific heat and the heat exchanger Product, determines the target temperature characteristic ratio,

Wherein, the atmospheric density, the air specific heat and the target temperature characteristic ratio are positively correlated, the heat exchange area with The target temperature characteristic ratio is negatively correlated.

6. progress control method according to any one of claim 1 to 5, which is characterized in that described according to described real-time Relationship between temperature profile ratio and target temperature characteristic ratio determines whether to generate the adjustment parameter of the blower, specific to wrap It includes:

If the absolute difference between the real time temperature characteristic ratio and the target temperature characteristic ratio is greater than redundancy threshold value, Generate the adjustment parameter of the blower.

7. progress control method according to claim 6, which is characterized in that if the real time temperature characteristic ratio with Absolute difference between the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically Include:

If the absolute difference is greater than the redundancy threshold value, and the real time temperature characteristic ratio is less than the target temperature spy Sign ratio then controls the revolving speed for increasing the blower.

8. progress control method according to claim 6, which is characterized in that if the real time temperature characteristic ratio with Absolute difference between the target temperature characteristic ratio is greater than redundancy threshold value, then generates the adjustment parameter of the blower, specifically Include:

If the absolute difference is greater than the redundancy threshold value, and the real time temperature characteristic ratio is greater than the target temperature spy Sign ratio then controls the revolving speed for reducing the blower.

9. a kind of operating control device is suitable for air conditioner indoor unit, is provided with heat exchanger and blower in the air conditioner indoor unit, It is characterized in that, the operating control device includes: memory and processor, and the memory is described for storing program code Processor is for calling said program code to execute such as progress control method described in any item of the claim 1 to 8.

10. a kind of air conditioner characterized by comprising

Operating control device as claimed in claim 9.

11. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer program The step of limiting such as any one of claims 1 to 8 progress control method is realized when being executed by processor.