Summary of the invention
The invention provides a kind of satisfy at night air-conditioning energy-conservation under the situation of human comfort and air-conditioning fan linked system.
For solving the problems of the technologies described above, the embodiment of the invention adopts following technical scheme to realize.
The embodiment of the invention provides a kind of energy-saving type air conditioner, comprising:
Be used to detect temperature detecting unit, the single-chip microcomputer of indoor temperature and the refrigeration unit that is used to freeze;
The fan control unit that is connected with described temperature detecting unit, and the socket that is connected with fan control unit, described socket is used to connect electric fan;
Described single-chip microcomputer is used to control described refrigeration unit and keeps indoor temperature behind normal design temperature, if startup sleep function, automatic setting first preset temperature again after the default time of normal design temperature operation then, when the detected indoor temperature of described temperature detecting unit is higher than first preset temperature, controls described refrigeration unit and begin refrigeration;
Described fan control unit is used for being higher than normal design temperature and during less than first preset temperature at the detected indoor temperature T of described temperature detecting unit, adjust the wind speed of external electric fan according to the corresponding relation of the series between indoor temperature T and the wind speed V, the rotating speed of described external electric fan is accelerated along with the rising of indoor temperature, and the rotating speed of described external electric fan satisfies the requirement of human comfort.
The embodiment of the invention also provides a kind of air-conditioning fan linked system, comprises electric fan and aforesaid air-conditioning, and electric fan is connected with described air-conditioning by the socket of described air-conditioning.
The air-conditioning that provides in the embodiment of the invention if do not start sleep function, then is as good as with common air-conditioning in use.When starting sleep function, then by above-mentioned energy-efficient sleep pattern operation.With respect to temperature regulation mechanism of the prior art, the air-conditioning that the embodiment of the invention provides can be realized the coordinated operation of air-conditioning and electric fan, can satisfy the requirement of human comfort, can reduce the running time of air conditioner refrigerating again, thereby reaches energy-saving effect.
The specific embodiment
The invention provides a kind of air-conditioning and air-conditioning fan linked system.Technical scheme for a better understanding of the present invention describes in detail embodiment provided by the invention below in conjunction with accompanying drawing.
Referring to Fig. 1, Fig. 1 is the structural representation of the energy-saving type air conditioner that provides of the embodiment of the invention one.
As shown in Figure 1, air-conditioning comprises single-chip microcomputer 110, temperature detecting unit 120, fan control unit 130, refrigeration unit 140 and socket 150.Wherein, temperature detecting unit 120 is used to detect indoor temperature, is specifically as follows temperature sensor.Refrigeration unit 140 is used for refrigeration, and its refrigerating function can be realized by the refrigeration system that conventional devices such as the compressor in the air-conditioning, evaporimeter, condenser are formed.
Wherein, fan control unit 130 is connected with temperature detecting unit 120, and socket 150 is connected with fan control unit 130, and socket 150 is used to connect electric fan.Under the normal operation, single-chip microcomputer 110 is used to control refrigeration unit 140 and keeps indoor temperature at normal design temperature.After starting sleep function, air conditioner is normal design temperature operation Preset Time by design temperature still, and afterwards, the design temperature of air conditioner is automatically set at first preset temperature.Wherein, above-mentioned Preset Time can be 30 minutes or other time span, and this time span is adjustable.First preset temperature can determine that its concrete temperature value can be less than or equal to 30 degrees centigrade according to the human comfort model.
Fan control unit 130 is used for being higher than out the fan temperature and during less than first preset temperature at temperature detecting unit 120 detected indoor temperature T, adjust the wind speed of external electric fan according to the corresponding relation between indoor temperature T and the wind speed V, the rotating speed of external electric fan is accelerated along with the rising of indoor temperature, and the rotating speed of external electric fan satisfies the requirement of human comfort.
According to PMV comfort level index, when the normal human was movable, under the air-conditioning state, it was comfortable that indoor temperature is kept about 26 ℃, but human body is when being in sleep state, and human body metabolism rate can significantly descend, and indoor temperature need be higher than 26 ℃ of ability and guarantee comfortable environment.For example, people in the sleep is under the given bedding condition of (comprising bed clothes, bed, pyjamas), after the human comfort model revised, under breeze conditions, 27 ℃ of temperature are under relative humidity 60% condition through measuring and calculating, PMV is in 0.5, be in comfort standard, PPD is 7.86, i.e. the dissatisfied percentage of prediction only is 7.86%.When strengthening wind speed, temperature can be promoted to 30 ℃, and it is comfortable that most people still feel.
According to the PMV theory, below 26 ℃ the time, also feel comfortable through the measuring and calculating temperature for most of crowd is calm, when temperature is 27 ℃, wind speed is preferably 0.4m/s; When temperature is 28 ℃, wind speed is preferably 0.7m/s; Temperature is 29 ℃, and wind speed is preferably 1.2m/s; Temperature is 30 ℃, and wind speed is preferably 2m/s.Embodiment of the invention utilization has the single-chip microcomputer of air-conditioning inside now, utilizes the temperature of the temperature sensor detection of air-conditioning, calculates according to the PMV theory.Wherein, fan control unit is specifically as follows the fan electromotor speed regulator, the fan electromotor speed regulator can use the mode of frequency conversion, aforementioned calculation result is just as the setting value of fan electromotor speed regulator, also can adopt the fan electromotor speed regulator with the rotation speed of the fan branch little mode of serving as reasons to big 10 gears operation, with the setting value of the immediate gear of the result of calculation of single-chip microcomputer as speed regulator, fan is connected the control that the fan electromotor speed regulator is subjected to single-chip microcomputer in the air-conditioning by socket.
Further, single-chip microcomputer also is used for when temperature detecting unit 120 detected indoor temperatures are higher than first preset temperature in embodiments of the present invention, and control refrigeration unit 140 begins refrigeration, thereby avoids the too high influence to human comfort of temperature.
In embodiments of the present invention, normal design temperature is 26 ℃, and first preset temperature is 30 ℃, has also stipulated to open the fan temperature in the following in addition formula (1), and opening the fan temperature is 27 ℃, promptly when indoor temperature less than 27 the time, V=0.
If the initial temperature of set environment is 26 ℃, wind speed with the curvilinear equation of variation of ambient temperature is:
When T more than or equal to 27 the time, V=0.1 (T-26)
2+ 0.3; (1)
When T less than 27 the time, V=0.
Wherein: v is an ambient wind velocity, and T is an environment temperature.
When environment temperature was T=26 ℃, v=0, fan can not open.When environment temperature reaches 27 ℃, promptly reach out the fan temperature, then according to equation 1, ambient wind velocity v=0.4m/s, fan is opened.When environment temperature reaches 30 ℃, ambient wind velocity v=2m/s.This embodiment can make 90% above crowd feel comfortably cool.
Can adopt following control method as follows for 7.86% dissatisfied crowd: with initial temperature T
0Outside ℃ heightening or turn down, can also regulate, make comfort level reach best by the newly-increased button on the remote controller by 26 ℃.For the crowd of sensation partial heat, can strengthen " final wind speed " or turn down " opening the fan temperature " or turn down " opening the fan temperature " simultaneously strengthening " final wind speed ".For feeling colder crowd, then can be by reducing " final wind speed " or heightening " opening the fan temperature " and solve.Wherein, final wind speed is an indoor temperature when being 30 degrees centigrade, and according to the wind speed that above-mentioned formula calculates, final wind speed is adjustable.
It is to be noted; the relation of described ambient wind velocity of present embodiment and environment temperature (being equation 1) is not unique; it obviously is a parabolic equation; other curvilinear equations, the curve that is obtained as the part of exponential curve, elliptic curve, curve and straight line stack etc. all should be within protection scope of the present invention.For example, also can satisfy the comfort level requirement by the curve motion shown in the following formula.
For example, when T more than or equal to 27 the time, V=0.3+0.1* (2
(T-26)-1); When T less than 27 the time, V=0.
Referring to Fig. 2, Fig. 2 is the schematic diagram of the air-conditioning fan linked system that provides of the embodiment of the invention.
As shown in the figure, the air-conditioning fan linked system that provides of the embodiment of the invention comprises air-conditioning 1 and electric fan 3.Electric fan 3 is connected with air-conditioning 1 by the socket 12 of air-conditioning.Wherein, the concrete structure of air-conditioning 1 no longer is repeated in this description at this referring to the foregoing description, and electric fan can adopt existing electric fan.
The air-conditioning fan linked system that the embodiment of the invention provides in use, can before sleep, the air-conditioning design temperature be normal design temperature, when pressing novel sleep function key, the air-conditioning design temperature still keeps normal design temperature, after duration reaches 30min, the refrigerating function of air-conditioning is out of service, and indoor temperature rises.When indoor temperature reached out the fan temperature, electric fan was opened, and electric fan can be regulated wind speed automatically according to indoor air temperature in running.
When electric fan is opened; being adjusted to first preset temperature on the air-conditioning design temperature is automatic (needs to determine through the measuring and calculating of human thermal comfort model; be assumed to 30 ℃); promptly when indoor air temperature surpasses first preset temperature; compressor of air conditioner starts; when being lower than first preset temperature, compressor of air conditioner is shut down, and this moment, fan still was subjected to the temperature controlled wind speed.In view of individuality to comfortable sensitivity difference, can reset the size of " final wind speed " and the height of " opening the fan temperature " that fan is opened respectively, the data that reset will be retained to next time automatically and be reset.The principle that resets is: higher when the sensible temperature of waking up from a sleep, then should strengthen " final wind speed ".Otherwise, then should reduce " final wind speed ".Felt temperature drift when sleeping as yet, then should turn down " opening the fan temperature ".Otherwise, then should heighten " opening the fan temperature ".Wherein, final wind speed is an indoor temperature when being 30 degrees centigrade, and according to the wind speed that above-mentioned formula calculates, final wind speed is adjustable.
The air-conditioning fan linked system that the embodiment of the invention provides can link air-conditioning and fan, acclimation to heat ability based on human body, in time period between the air-conditioning design temperature and the hot comfort upper limit, replace operation of air conditioner with fan, both guarantee the thermal comfort of human body, can reach good energy-saving effect again.
More than air-conditioning and air-conditioning fan linked system that the embodiment of the invention is provided be described in detail, for one of ordinary skill in the art, thought according to the embodiment of the invention, the part that all can change in specific embodiments and applications, this description should not be construed as limitation of the present invention.