CN104566649A - Air conditioner and control method thereof - Google Patents

Air conditioner and control method thereof Download PDF

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Publication number
CN104566649A
CN104566649A CN201410848223.3A CN201410848223A CN104566649A CN 104566649 A CN104566649 A CN 104566649A CN 201410848223 A CN201410848223 A CN 201410848223A CN 104566649 A CN104566649 A CN 104566649A
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China
Prior art keywords
air
conditioner
storage equipment
energy storage
temperature
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Application number
CN201410848223.3A
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Chinese (zh)
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CN104566649B (en
Inventor
刘智勇
张�浩
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广东美的制冷设备有限公司
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Publication of CN104566649A publication Critical patent/CN104566649A/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/02Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
    • F24F1/022Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data

Abstract

The invention provides an air conditioner and a control method thereof. The air conditioner comprises a controller, a condenser, an inverter compressor, a throttling device and an energy storing device; the condenser is positioned in the energy storing device, and one end of the condenser is connected with the inverter compressor and while the other end of the condenser is connected with the throttling device. The air conditioner further comprises a first temperature sensor which is arranged on the energy storing device, and a second temperature sensor which is arranged on a pipeline through which the condenser is connected with the throttling device; the second temperature sensor is positioned at the outer part of an energy storing agent of the energy storing device; the inverter compressor, the first temperature sensor and the second temperature sensor are both electrically connected with the controller; when the temperature value detected by the first temperature sensor is more than the first preset value, and the temperature value detected by the second temperature sensor is less than the second preset value, the controller controls the inverter compressor to lower down the working frequency; when the temperature value detected by the second temperature sensor is more than the second preset value, the controller controls the inverter compressor to stop working, and therefore, the intelligent control of the air conditioner is achieved.

Description

Air-conditioner and control method thereof

Technical field

The present invention relates to air-conditioning technical field, more specifically, relate to the control method of a kind of air-conditioner and this air-conditioner.

Background technology

In prior art, mobile air conditioner can realize the object of local refrigeration in large space easily, the hot blast of the condensation side discharge of mobile air conditioner, there are two kinds of processing methods at present, one connects an exhaust duct, is discharged into outdoor, and another kind is directly discharged in the middle of the interior space.But for not being too large place as spaces such as family parlor, kitchens, local refrigeration be realized, the problems such as exhaust duct is oversize, exhaust duct placement is inconvenient can be run into; Or due to narrow space, directly to interior space air draft, the problems such as comparatively large, energy consumption is excessive are affected on refrigeration.

Summary of the invention

The present invention is intended at least to solve one of technical problem existed in prior art.

For this reason, the object of one aspect of the invention is, a kind of air-conditioner is provided, by arranging energy storage equipment, condenser is cooled, solve condensation side and discharge hot blast problem, and adjusted the operating frequency of frequency-changeable compressor by the temperature detecting accumulation of energy agent and condenser output refrigerant, to improve the refrigeration of air-conditioner.

The object of another aspect of the present invention is, provides a kind of control method of above-mentioned air-conditioner.

For achieving the above object, the embodiment of one aspect of the invention provides a kind of air-conditioner, described air-conditioner comprises controller, condenser, frequency-changeable compressor, throttling arrangement and energy storage equipment, described condenser is positioned at described energy storage equipment, and one end is connected with described frequency-changeable compressor by pipeline, the other end is connected with described throttling arrangement by pipeline, and described frequency-changeable compressor is electrically connected with described controller; Described air-conditioner also comprises: the first temperature sensor, and described first temperature sensor is arranged on described energy storage equipment, and is electrically connected with described controller, for detecting the temperature of the accumulation of energy agent of described energy storage equipment; With the second temperature sensor, described second temperature sensor is arranged on the pipeline that described condenser is connected with described throttling arrangement, and it is outside to be positioned at described accumulation of energy agent, and described second temperature sensor is electrically connected with described controller.

The air-conditioner that the above embodiment of the present invention provides, first temperature sensor is arranged on energy storage equipment, can be used for the temperature of the accumulation of energy agent detecting energy storage equipment, second temperature sensor is arranged on one end that condenser is connected with throttling arrangement, namely the output of condenser under cooling condition is arranged on, can be used for the refrigerant temperature of the output detecting condenser, and controller and the first temperature sensor, second temperature sensor and frequency-changeable compressor electrical connection, the temperature that can detect according to the first temperature sensor and the second temperature sensor, control the work of frequency-changeable compressor, as: under cooling condition, when the temperature of the accumulation of energy agent of the first temperature sensor detection is higher, and the temperature of condenser output refrigerant that detects of the second temperature sensor lower time, the operating frequency that controller controls frequency-changeable compressor reduces, when the refrigerant temperature of the condenser output that the second temperature sensor detects is higher, controller controls frequency-changeable compressor and quits work.Particularly, when the temperature of accumulation of energy agent is higher, its cooling and accumulation of heat deleterious, now can reduce the operating frequency of frequency-changeable compressor, reduces the heat dissipation capacity of condenser, thus reduce the temperature rise speed of accumulation of energy agent, makes air-conditioner maintain the duty of low speed refrigeration; When the refrigerant temperature of condenser output is higher, in energy storage equipment, accumulation of energy agent cannot the heat that distributes of absorptive condenser well, make the heat exchange efficiency of condenser low, the poor refrigerating efficiency of air-conditioner, now control frequency-changeable compressor to quit work, namely control air-conditioner to quit work, avoid energy waste.User can quit work at air-conditioner and energy storage equipment naturally cool and gradually recover room temperature time reopen air-conditioner, or also by changing the accumulation of energy agent in energy storage equipment, make energy storage equipment again have good accumulation of heat effect, again open air-conditioner and carry out refrigeration work.

To sum up, by arranging two temperatures sensor, detect the temperature of accumulation of energy agent and condenser output refrigerant respectively, and according to the result detected, control the operating frequency of frequency-changeable compressor, achieve the control to air-conditioner work, thus make the control of air-conditioner more intelligent.

In addition, the air-conditioner that the above embodiment of the present invention provides also has following additional technical feature:

According to one embodiment of present invention, described energy storage equipment comprises accumulation of energy casing and is positioned at the accumulation of energy agent of described accumulation of energy casing, and described first temperature sensor inserts in described accumulation of energy agent.

According to one embodiment of present invention, described energy storage equipment is water tank, and described accumulation of energy agent is water, and described first temperature sensor is positioned at the water surface to underwater 1/4th place.

According to one embodiment of present invention, the height of described water tank is higher than the height of described condenser, and described condenser is positioned at the bottom of water tank, and the water surface did not have the upper surface of described condenser.

According to one embodiment of present invention, described air-conditioner is integral type air-conditioner, described air-conditioner comprises a casing, and described casing offers the air inlet be connected and air outlet, and described condenser, described compressor, described throttling arrangement and described energy storage equipment are all positioned at described casing.

According to one embodiment of present invention, described energy storage equipment is installed in described casing; Or described energy storage equipment is removably mounted in described casing.

According to one embodiment of present invention, the bottom of the sidewall of described energy storage equipment offers an outlet, and described accumulation of energy agent can be discharged from described outlet.

According to one embodiment of present invention, described energy storage equipment is positioned at the side of described frequency-changeable compressor; Or ringwise or arc, described energy storage equipment is arranged around described frequency-changeable compressor described energy storage equipment.

According to one embodiment of present invention, the exterior bottom wall of described casing is provided with universal wheel; And/or described air inlet is provided with screen pack.

The present invention's embodiment on the other hand provides a kind of control method of above-mentioned air-conditioner, comprise the following steps: the first temperature sensor detects the temperature of accumulation of energy agent, second temperature sensor detects the temperature of refrigerant, when the temperature value that described first temperature sensor detects higher than the first preset value T1 and the temperature value that described second temperature sensor detects is less than the second preset value T2 time, controller controls the operating frequency of frequency-changeable compressor and is reduced to lower than predeterminated frequency H; When the temperature value that described second temperature sensor detects is higher than described second preset value T2, described controller controls described frequency-changeable compressor and quits work.

According to one embodiment of present invention, described first preset value T1 is 35-42 DEG C, and described second preset value T2 is 50-65 DEG C, and the scope of described predeterminated frequency H is at 35-50HZ.

According to one embodiment of present invention, after the temperature of described accumulation of energy agent is increased beyond described first preset value T1, the frequency that described controller controls described frequency-changeable compressor progressively declines from described predeterminated frequency H, until the temperature of described refrigerant is higher than described second preset value T2.

Additional aspect of the present invention and advantage become obvious by description part below, or are recognized by practice of the present invention.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:

Fig. 1 and Fig. 2 is the structural representation of the air-conditioner according to one embodiment of the invention, view when wherein Fig. 1 is air-conditioner horizontal air-out, view when Fig. 2 is air-conditioner air-out obliquely;

Fig. 3 and Fig. 4 is the structural representation of air-conditioner described according to a further embodiment of the invention, view when wherein Fig. 3 is air-conditioner horizontal air-out, view when Fig. 4 is air-conditioner air-out obliquely;

Fig. 5 is the schematic flow sheet of the control method of air-conditioner according to one embodiment of the invention.

Wherein, the corresponding relation between Fig. 1 to Fig. 4 Reference numeral and each component names is:

1 air-conditioner, 10 casings, 100 air inlets, 101 air outlets, 102 screen packs, 11 controllers, 12 frequency-changeable compressors, 13 condensers, 14 throttling arrangements, 15 evaporimeters, 16 blower fans, 17 energy storage equipments, 170 accumulation of energy agent, 171 outlets, 18 universal wheels, the broken lined arrows wherein in Fig. 1 to Fig. 4 represents the flow direction of wind.

Detailed description of the invention

In order to more clearly understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments, the present invention is further described in detail.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.

Set forth a lot of detail in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from mode described here to implement, and therefore, protection scope of the present invention is not by the restriction of following public specific embodiment.

The control method of air-conditioner and this air-conditioner provided according to the embodiment of the present invention is described with reference to the accompanying drawings.

As shown in Figures 1 to 4, The embodiment provides a kind of air-conditioner 1, described air-conditioner 1 comprises controller 11, frequency-changeable compressor 12, condenser 13, throttling arrangement 14, evaporimeter 15 and energy storage equipment 17, described frequency-changeable compressor 12, described condenser 13, described throttling arrangement 14, described evaporimeter 15 are connected successively by pipeline, composition closes refrigerant flow, and refrigerant can flow in described refrigerant flow; Described condenser 13 is positioned at described energy storage equipment 17, so that energy storage equipment 17 absorbs the heat that when air-conditioner freezes, condenser distributes.

Described air-conditioner 1 also comprises the first temperature sensor (not shown) and the second temperature sensor (not shown), described first temperature sensor (not shown) is arranged on described energy storage equipment 17, for detecting the temperature of accumulation of energy agent 170 in energy storage equipment 17, described second temperature sensor is arranged on pipeline that described condenser is connected with described throttling arrangement 14 (namely under cooling condition condenser output pipeline on), for detecting the refrigerant temperature of condenser 13 output, and described second temperature sensor is positioned at the outside of described accumulation of energy agent 170, with the impact from accumulation of energy agent temperature, and described frequency-changeable compressor 12, first temperature sensor is all connected with controller 11 with the second temperature sensor, and according to the temperature that the first temperature sensor and the second temperature sensor detect, control the work of frequency-changeable compressor 11, as: under cooling condition, when the temperature of the accumulation of energy agent of the first temperature sensor detection is higher, and the refrigerant temperature of condenser output that detects of the second temperature sensor lower time, the operating frequency that controller controls frequency-changeable compressor reduces, when the refrigerant temperature of the condenser output that the second temperature sensor detects is higher, controller controls frequency-changeable compressor and quits work.Particularly, when the temperature of accumulation of energy agent is higher, its cooling and accumulation of heat deleterious, now can reduce the operating frequency of frequency-changeable compressor, reduces the heat dissipation capacity of condenser, thus reduce the temperature rise speed of accumulation of energy agent, makes air-conditioner maintain the duty of low speed refrigeration; When the refrigerant temperature of condenser output is higher, in energy storage equipment, accumulation of energy agent cannot the heat distributed of absorptive condenser well, make the heat exchange efficiency of condenser low, the poor refrigerating efficiency of air-conditioner, now control frequency-changeable compressor to quit work, namely control air-conditioner to quit work, avoid energy waste.User can quit work at air-conditioner and energy storage equipment naturally cool and gradually recover room temperature time reopen air-conditioner, or also by changing the accumulation of energy agent in energy storage equipment, make energy storage equipment again have good accumulation of heat effect, again open air-conditioner and carry out refrigeration work.

To sum up, by arranging two temperatures sensor, detect the refrigerant temperature of accumulation of energy agent and condenser output respectively, and according to the result detected, control the operating frequency of frequency-changeable compressor, achieve the control to air-conditioner work, thus make the control of air-conditioner more intelligent.

Further, as shown in Figure 1, described energy storage equipment 17 comprises accumulation of energy casing and is positioned at the accumulation of energy agent 170 of described accumulation of energy casing, described first temperature sensor inserts in described accumulation of energy agent 170, so that the first temperature sensor accurately can detect accumulation of energy agent temperature in energy storage equipment, so that according to the temperature of the accumulation of energy agent detected, know the energy storage capability of energy storage equipment, and then control the operating frequency of frequency-changeable compressor, make the energy storage capability of the operating frequency of frequency-changeable compressor and energy storage equipment suitable, the temperature value that first temperature sensor is detected is higher, the operating frequency that controller controls frequency-changeable compressor is lower.

In one particular embodiment of the present invention, described energy storage equipment 17 is water tank, and described accumulation of energy agent 170 is water, and described first temperature sensor is positioned at the water surface to underwater 1/4th place.

Preferably, the height of described water tank is higher than the height of described condenser 13, and described condenser 13 is positioned at the bottom of water tank, and the water surface did not have the upper surface of described condenser 13.

Condenser is positioned at the bottom of water tank, during refrigeration, water around condenser is heated at first, along with the convection current of water, the temperature of the water on top progressively raises, when being positioned at first temperature sensor of the water surface to underwater 1/4th place and detecting that water temperature reaches a certain preset value (as the first preset value), illustrate that the amount of stored heat of now water tank has reached a certain amount of, the heat storage capacity of water tank is lower, now by reducing the frequency of frequency-changeable compressor, slow down the heat that condenser distributes, so that the water in water tank can the heat of abundant absorptive condenser, for condenser heat radiation, when the second temperature sensor detects that the refrigerant temperature of condenser output reaches certain certain value (as the second preset value), illustrate that the heat storage capacity of now water tank is saturated, now control frequency-changeable compressor to quit work.

In addition, adopt the water with large specific heat capacity as accumulation of energy agent, make the accumulation of heat of accumulation of energy agent effective, compared to the accumulation of energy agent of little specific heat capacity, temperature rise when the accumulation of energy agent of large specific heat capacity absorbs identical heat is little, thus the amount of stored heat of accumulation of energy agent in unit volume can be improved, and then promote the heat storage capacity of energy storage equipment, extend the cooling time of air-conditioner; Condenser is all immersed in water, makes the contact area of water and condenser large, can fully absorptive condenser heat exchange time the heat that distributes, the heat exchange efficiency of lifting condenser.

Certainly, described accumulation of energy agent 170 can also be other materials in addition to water, as: ethylene glycol or paraffin, paraffin can produce phase transformation at normal temperatures, to heat be absorbed during owing to undergoing phase transition, thus can well absorptive condenser heat exchange time the heat that distributes, ethylene glycol has larger specific heat capacity, can more absorptive condenser heat exchange time the heat that distributes, and then realize the good refrigeration of air-conditioner.Certainly, other also can be adopted to have the material of large specific heat capacity, or the material that can produce phase transformation during normal temperature is as accumulation of energy agent, can realize good accumulation of heat effect equally, not repeat them here.

In a specific embodiment of the present invention, as shown in Figures 1 to 4, described air-conditioner 1 is integral type air-conditioner, described air-conditioner 1 comprises a casing 10, described frequency-changeable compressor 12, condenser 13, throttling arrangement 14, energy storage equipment 17 and evaporimeter 15 are all positioned at described casing 10, and described casing 10 offers air inlet 100 and air outlet 101, air channel is communicated with between described air inlet 100 and described air outlet 101, described evaporimeter 15 is arranged in described air channel, is also provided with blower fan 16 in described air channel.

Air-conditioner in above-described embodiment is integral type air-conditioner, frequency-changeable compressor, condenser, throttling arrangement, energy storage equipment, evaporimeter and blower fan are all arranged in a casing of air-conditioner, realize the integral structure design of air-conditioner, thus realize the object of local refrigeration in large space, condenser is positioned at energy storage equipment, like this, the heat that condenser distributes in air-conditioner process of refrigerastion can be absorbed by energy storage equipment, be embodied as the effect of condenser cooling, thus make condenser can carry out exchange heat efficiently, both avoided in conventional art because needing to run in airduct and the placement location of the air-conditioner caused is limited, freeze limited problem in local, and avoid condenser to change thermogenetic heat being directly discharged in room air, and the poor refrigerating efficiency of the air-conditioner caused, the problem that energy consumption is large, thus achieve the effect of air-conditioner fast-refrigerating, and utilize energy storage equipment to cool, eliminate the structure such as cooling blower and exhaust duct, make the movement of air-conditioner more flexible, holistic cost is also lower.

In the integral air conditioner that the above embodiment of the present invention provides, the computing formula of accumulation of energy agent quality used is:

M=(Q+W)T/((C p1+C p2)(T 2-T 1))+W r)

Wherein: M-accumulation of energy agent quality, kg

Q-nominal refrigerating capacity, kW

W-consumed power, kW

T-air-conditioner refrigeration duration, s

C p1, C p2the specific heat capacity of-cooling material, kJ/kg DEG C

W rthe heat of fusion of-phase-change material, kJ/kg

T 1-cooling material initial temperature, DEG C

T 2-cooling material finishing temperature, DEG C

According to above-mentioned computing formula, the mass M of required accumulation of energy agent is directly proportional to the refrigeration duration T of air-conditioner, can the refrigeration duration T of air-conditioner as required, calculates the mass M of required accumulation of energy agent.

The refrigerating capacity be applicable to of above-mentioned integral air conditioner is 0.5 ~ 3.5kW (kilowatt), and the refrigeration duration be applicable to is 0.5 ~ 2h.

Certainly, air-conditioner can be not only integral type air-conditioner, also can be detachable air conditioner.

In some embodiments of the present invention, described energy storage equipment 17 is installed in described casing 10; Or described energy storage equipment 17 is removably mounted in described casing 10.

In above-described embodiment, energy storage equipment can be installed in casing, makes the fixation of energy storage equipment and casing; Energy storage equipment also can be removably mounted in casing, make the easy accessibility of energy storage equipment and casing, when air-conditioner carries out causing the temperature of accumulation of energy agent in energy storage equipment higher after refrigeration work, easily energy storage equipment can be taken out and change the inside accumulation of energy agent, make energy storage equipment again have good heat storage capacity, can again open air-conditioner and freeze.

Such as, when adopting both economical water as accumulation of energy agent, can directly change the accumulation of energy agent in energy storage equipment, or, also accumulation of energy agent higher for temperature can be positioned in air and naturally cool, make accumulation of energy agent again recover normal temperature, use when being convenient to next air-conditioner refrigeration; Also can close air-conditioner after air-conditioner work certain hour, the accumulation of energy agent in its energy storage equipment is cooled naturally and again recovers normal temperature, and then open air-conditioner.

Further, as shown in Figure 1, the bottom of the sidewall of described energy storage equipment 17 offers an outlet 171, and described accumulation of energy agent 170 can be discharged from described outlet 171.

Energy storage equipment offers an outlet, the accumulation of energy agent after making accumulation of heat with higher temperature can be discharged from outlet, be convenient to again in energy storage equipment, fill accumulation of energy agent, energy storage equipment is made again to have good heat storage capacity, air-conditioner is facilitated again to open and freeze, and without the need to dismantling energy storage equipment when making to change accumulation of energy agent, extend the service life of energy storage equipment.

In some embodiments of the present invention, described energy storage equipment 17 is positioned at the side of described frequency-changeable compressor; Or ringwise or arc, described energy storage equipment 17 is arranged around described frequency-changeable compressor described energy storage equipment 17.

In above-described embodiment, energy storage equipment can be positioned at the side of frequency-changeable compressor, and energy storage equipment and frequency-changeable compressor are placed side by side; Energy storage equipment also can ringwise or arc, make energy storage equipment arrange around frequency-changeable compressor, thus saves the space of energy storage equipment, makes the layout of air-conditioner compacter, reasonable.

Preferably, as shown in Figure 1, energy storage equipment and frequency-changeable compressor are disposed in parallel in the bottom in casing, and correspondingly, blower fan and evaporimeter are disposed in parallel in the top in casing.

In one embodiment of the present of invention, as shown in Figure 1, the exterior bottom wall of described casing 10 is provided with universal wheel 18; And/or described air inlet 100 place is provided with screen pack 102.

The exterior bottom wall of casing is provided with universal wheel, makes the movement of integral air conditioner flexible, to meet the requirement of the coolings of site requirements short time such as daily parlor, kitchen; Air inlet is provided with screen pack, can oil smoke effectively in filtered air, prevents oil smoke etc. from entering air-conditioner, affects the normal work of air-conditioner, preferably, adopt the metal filter screen with filter oil hood.

It should be noted that, as depicted in figs. 1 and 2, described air outlet 101 is arranged on the front side wall of described casing 10, and described air inlet 100 is arranged on the rear wall of described casing 10; Or as shown in Figure 3 and Figure 4, described air outlet 101 is arranged on the front side wall of described casing 10, and described air inlet 100 is also arranged on the front side wall of described casing 10, and described air outlet 101 place is provided with swingable blade (not shown); Described controller 11 comprises air-supply swing unit (not shown), described air-supply swing unit comprises horizontal blast swing unit and vertical ventilation swing unit, described air-supply swing unit is by the pendulum angle of the described blade of adjustment, adjust the air-out direction of described air outlet, make the air-out direction at air outlet place be horizontal direction (as shown in figures 1 and 3) or diagonal upward direction (as shown in Figure 2 and Figure 4).

In one embodiment of the present of invention, described controller also comprises EAT detecting unit and evaporator temperature detecting unit (not shown), described EAT detecting unit is for detecting the temperature of described air inlet, when detecting that the temperature of described air inlet reaches the 3rd preset value, described controller controls described frequency-changeable compressor and quits work; Described evaporator temperature detecting unit is for detecting the temperature of described evaporimeter, when detecting that the temperature of described evaporimeter is lower than the 4th preset value, and when maintaining preset duration, described controller adjusts the operating frequency of described frequency-changeable compressor, to prevent evaporator develops ice.

Evaporimeter described in the above-mentioned any embodiment of the present invention can be the form such as fin-tube type, microchannel; Condenser can be the forms such as coil pipe, fin-tube type, microchannel; Blower fan can be tubular or centrifugal fan; Throttling arrangement can be capillary, electric expansion valve, choke valve etc.

As shown in Figure 5, the present invention's embodiment on the other hand provides a kind of control method of above-mentioned air-conditioner, comprises the following steps:

Step S102, detects the temperature of accumulation of energy agent with the first temperature sensor, the second temperature sensor detects the temperature of condenser output refrigerant;

Step S104, when the temperature value that described first temperature sensor detects higher than the first preset value T1 and the temperature value that described second temperature sensor detects is less than the second preset value T2 time, controller controls the operating frequency of frequency-changeable compressor and is reduced to lower than predeterminated frequency H;

Step S106, when the temperature value that described second temperature sensor detects is higher than described second preset value T2, described controller controls described frequency-changeable compressor and quits work.

When the temperature value of condenser output refrigerant be less than the second preset value, energy storage equipment higher than the first preset value time, cooling and the accumulation of heat deleterious of energy storage equipment are described, now can reduce the operating frequency of frequency-changeable compressor, reduce heat dissipation capacity during condenser heat exchange, thus reduce the temperature rise speed of energy storage equipment, make air-conditioner maintain the duty of low speed refrigeration; When the temperature of condenser output refrigerant is higher than the second preset value, energy storage equipment cannot the heat distributed of absorptive condenser well, make the heat exchange efficiency of condenser low, the poor refrigerating efficiency of air-conditioner, now control frequency-changeable compressor to quit work, namely control air-conditioner to quit work, avoid energy waste; User can quit work at air-conditioner and energy storage equipment naturally cool and gradually recover room temperature time reopen air-conditioner, or also by changing the accumulation of energy agent of cold energy storage equipment, energy storage equipment is made again to have good accumulation of heat effect, again open air-conditioner and carry out refrigeration work, thus making the control of air-conditioner more intelligent.

In some embodiments of the invention, the scope of described first preset value T1 is at 35-42 DEG C, and described second preset value T2 scope is at 50-65 DEG C, and the scope of described predeterminated frequency H is at 35-50HZ.

Further, after the temperature of described accumulation of energy agent is increased beyond described first preset value T1, the frequency that described controller controls described frequency-changeable compressor progressively declines from described predeterminated frequency H, until the temperature of described refrigerant is higher than described second preset value T2.

In a concrete example, energy storage equipment is water tank, and the initial operating frequency of frequency-changeable compressor is 90HZ, initial water temperature is 20 DEG C, refrigerant is r22, and the first preset temperature T1 is 40 DEG C, and the second preset value T2 is 62 DEG C, predeterminated frequency H is 40HZ, along with the carrying out of refrigeration, water temperature rises gradually, when water temperature rises to 40 DEG C (now the temperature of refrigerant is less than 62 DEG C), the operating frequency that controller controls frequency-changeable compressor is reduced to 40HZ, instead of stoppage protection; Along with the continuation of refrigeration, water temperature continues to rise, and the operating frequency of frequency-changeable compressor continues progressively to reduce, and when the temperature of refrigerant rises to 62 DEG C, controller controls frequency-changeable compressor and quits work.

In the above embodiment of the present invention, when making water temperature rise to the first preset temperature on the one hand, can not there is stoppage protection in the setting of two temperatures sensor, but proceed refrigeration, improves the refrigeration of air-conditioner, reduce the stop frequency of frequency-changeable compressor; On the other hand; when frequency-changeable compressor quits work (i.e. frequency-changeable compressor generation stoppage protection); water temperature is higher; namely in process of refrigerastion; condenser can obtain more cold from water; improve the cooling effect of energy storage equipment to condenser, reduce the replacement frequency of accumulation of energy agent in energy storage equipment.

In sum, the air-conditioner that the embodiment of the present invention provides, by being provided with the energy storage equipment being contained with accumulation of energy agent in casing, and condenser is positioned at energy storage equipment, the heat that condenser is distributed in air-conditioner process of refrigerastion can be absorbed by accumulation of energy agent, realize the effect that accumulation of energy agent is condenser cooling, thus make condenser can carry out exchange heat efficiently, thus achieve the object that air-conditioner carries out fast-refrigerating; And detect accumulation of energy agent temperature by the first temperature sensor, the temperature of refrigerant on condenser output pipeline is detected by the second temperature sensor, when the temperature of accumulation of energy agent is higher, the accumulation of heat deleterious of accumulation of energy agent, now can reduce the operating frequency of frequency-changeable compressor, reduce heat dissipation capacity during condenser heat exchange, thus reduce the temperature rise speed of accumulation of energy agent, make air-conditioner maintain the duty of low speed refrigeration; When on condenser output pipe, the temperature of refrigerant is higher, in energy storage equipment, accumulation of energy agent cannot the heat distributed of absorptive condenser well, the heat exchange efficiency of condenser is low, the poor refrigerating efficiency of air-conditioner, now control frequency-changeable compressor to quit work, namely control air-conditioner to quit work, avoid energy waste; User can quit work at air-conditioner and accumulation of energy agent naturally cool and gradually recover room temperature time reopen air-conditioner, or also by changing the accumulation of energy agent in energy storage equipment, energy storage equipment is made again to have good accumulation of heat effect, again open air-conditioner and carry out refrigeration work, thus making the control of air-conditioner more intelligent.

In invention, unless otherwise clearly defined and limited, term " is connected ", " connection ", the term such as " installation " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In describing the invention, the description of term " embodiment ", " some embodiments ", " specific embodiment " etc. means to describe in conjunction with this embodiment or example specific features, structure, material or feature are contained at least one embodiment of the present invention or example.In the present invention, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.

The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (12)

1. an air-conditioner, described air-conditioner comprises controller, condenser, frequency-changeable compressor, throttling arrangement and energy storage equipment, described condenser is positioned at described energy storage equipment, and one end is connected with described frequency-changeable compressor by pipeline, the other end is connected with described throttling arrangement by pipeline, and described frequency-changeable compressor is electrically connected with described controller; It is characterized in that, also comprise:
First temperature sensor, described first temperature sensor is arranged on described energy storage equipment, and is electrically connected with described controller, for detecting the temperature of the accumulation of energy agent of described energy storage equipment; With
Second temperature sensor, described second temperature sensor is arranged on the pipeline that described condenser is connected with described throttling arrangement, and it is outside to be positioned at described accumulation of energy agent, and for detecting the temperature of refrigerant, and described second temperature sensor is electrically connected with described controller.
2. air-conditioner according to claim 1, is characterized in that,
Described energy storage equipment comprises accumulation of energy casing and is positioned at the described accumulation of energy agent of described accumulation of energy casing, and described first temperature sensor inserts in described accumulation of energy agent.
3. air-conditioner according to claim 2, is characterized in that,
Described energy storage equipment is water tank, and described accumulation of energy agent is water, and described first temperature sensor is positioned at the water surface to underwater 1/4th place.
4. air-conditioner according to claim 3, is characterized in that,
The height of described water tank is higher than the height of described condenser, and described condenser is positioned at the bottom of water tank, and the water surface did not have the upper surface of described condenser.
5. air-conditioner according to any one of claim 1 to 4, is characterized in that,
Described air-conditioner is integral type air-conditioner, and described air-conditioner comprises a casing, and described casing offers the air inlet be connected and air outlet, and described condenser, described compressor, described throttling arrangement and described energy storage equipment are all positioned at described casing.
6. air-conditioner according to claim 5, is characterized in that,
Described energy storage equipment is installed in described casing; Or,
Described energy storage equipment is removably mounted in described casing.
7. air-conditioner according to claim 6, is characterized in that,
The bottom of the sidewall of described energy storage equipment offers an outlet, and described accumulation of energy agent can be discharged from described outlet.
8. air-conditioner according to claim 5, is characterized in that,
Described energy storage equipment is positioned at the side of described frequency-changeable compressor; Or
Ringwise or arc, described energy storage equipment is arranged around described frequency-changeable compressor described energy storage equipment.
9. air-conditioner according to claim 5, is characterized in that,
The exterior bottom wall of described casing is provided with universal wheel; And/or
Described air inlet is provided with screen pack.
10. a control method for air-conditioner, is characterized in that, for controlling air-conditioner as claimed in any one of claims 1-9 wherein, the control method of described air-conditioner comprises the following steps:
Detect the temperature of accumulation of energy agent in energy storage equipment with the first temperature sensor, detect the temperature of refrigerant with the second temperature sensor;
When the temperature value that described first temperature sensor detects higher than the first preset value T1 and the temperature value that described second temperature sensor detects is less than the second preset value T2 time, controller controls the operating frequency of frequency-changeable compressor and is reduced to lower than predeterminated frequency H;
When the temperature value that described second temperature sensor detects is higher than described second preset value T2, described controller controls described frequency-changeable compressor and quits work.
The control method of 11. air-conditioners according to claim 10, is characterized in that,
The scope of described first preset value T1 is at 35-42 DEG C, and described second preset value T2 scope is at 50-65 DEG C, and the scope of described predeterminated frequency H is at 35-50HZ.
The control method of 12. air-conditioners according to claim 11, is characterized in that,
After the temperature of described accumulation of energy agent is increased beyond described first preset value T1, the operating frequency that described controller controls described frequency-changeable compressor progressively declines from described predeterminated frequency H, until the temperature of described refrigerant is higher than described second preset value T2.
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CN107101300A (en) * 2017-05-17 2017-08-29 广东美的制冷设备有限公司 Reminding method and computer-readable recording medium that air conditioner and its heat storage tank are changed
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CN111174333A (en) * 2018-10-24 2020-05-19 青岛海尔空调器有限总公司 Control method and device for movable air conditioner
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CN104879843A (en) * 2015-06-12 2015-09-02 广东美的暖通设备有限公司 Air conditioner control device, multi-split air conditioner and air conditioner control method
CN104879843B (en) * 2015-06-12 2017-06-30 广东美的暖通设备有限公司 Air conditioner controlling device, multi-split air conditioner and air-conditioner control method
CN105423434A (en) * 2015-11-24 2016-03-23 青岛农业大学 Portable installation-free air conditioner
CN105928062A (en) * 2016-04-29 2016-09-07 珠海格力电器股份有限公司 Indoor air-conditioner, air conditioning unit and control method of air conditioning unit
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CN107101300A (en) * 2017-05-17 2017-08-29 广东美的制冷设备有限公司 Reminding method and computer-readable recording medium that air conditioner and its heat storage tank are changed
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CN109253556A (en) * 2017-07-13 2019-01-22 浙江三花智能控制股份有限公司 Air-conditioning system component and air conditioner with it
CN109425028A (en) * 2017-07-13 2019-03-05 浙江三花智能控制股份有限公司 Integrated air conditioner
CN109724287A (en) * 2017-10-30 2019-05-07 浙江三花智能控制股份有限公司 Air-conditioning system and air conditioner
CN109724286A (en) * 2017-10-30 2019-05-07 浙江三花智能控制股份有限公司 Air-conditioning system and air conditioner
CN108870593A (en) * 2018-07-05 2018-11-23 珠海格力电器股份有限公司 air conditioner
CN110822651A (en) * 2018-08-07 2020-02-21 青岛海尔空调器有限总公司 Mobile energy storage type air conditioning system and control method thereof
WO2020042459A1 (en) * 2018-08-27 2020-03-05 广东美的白色家电技术创新中心有限公司 Air conditioner
CN110864410A (en) * 2018-08-27 2020-03-06 广东美的白色家电技术创新中心有限公司 Computer readable storage medium, mobile air conditioner, and control method and control device thereof
CN111174333A (en) * 2018-10-24 2020-05-19 青岛海尔空调器有限总公司 Control method and device for movable air conditioner
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