CN107514742B - Electric heating control method for partitioned air supply air conditioner and air conditioner - Google Patents
Electric heating control method for partitioned air supply air conditioner and air conditioner Download PDFInfo
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- CN107514742B CN107514742B CN201710622840.5A CN201710622840A CN107514742B CN 107514742 B CN107514742 B CN 107514742B CN 201710622840 A CN201710622840 A CN 201710622840A CN 107514742 B CN107514742 B CN 107514742B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
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Abstract
The electric heating control method for the zoned air supply air conditioner comprises the following steps: a starting control stage, which determines whether the linkage functional part, the indoor environment temperature, the difference value between the indoor environment temperature and the set temperature and the detection value of a coil temperature sensor of the electric heater arranged in the same shell meet the starting set condition; when all the starting setting conditions are met, the electric heater is started; and/or a shutdown control phase, the shutdown of any one of the electric heaters comprising a plurality of parallel steps of: determining whether the linkage functional part, the indoor environment temperature, the difference value between the indoor environment temperature and the set temperature and the detection value of the coil temperature sensor meet the set closing condition or not; when one of the off setting conditions is met, the electric heater is switched to an off state or is kept in the off state; wherein the linkage function includes at least a compressor and a crossflow blower. An air conditioner is also disclosed. The invention has the advantages of good air conditioning effect, flexible control mode and high comfort.
Description
Technical Field
The invention relates to the technical field of air conditioning, in particular to an electric heating control method for a partitioned air supply air conditioner and the air conditioner.
Background
In a common vertical air conditioner, when the air conditioner is in a heating mode, the auxiliary electric heating can improve the heating comfort of an air conditioning unit and improve the heating speed of an air conditioning room.
The prior art indoor unit of a floor air conditioner is provided with only one heat exchanger, so that only one electric heater is usually provided to be used with the heat exchanger. In the prior art, the electric heater is controlled simply, and the electric heater is controlled to be started or stopped in a corresponding working mode. Since the power of the electric heater is usually large, the prior art also discloses a control scheme of dividing one electric heater into a plurality of groups and starting the electric heater in a segmented manner. As disclosed in chinese patent application, application No. (201510660471. X). However, this control method is limited to the basic structure of a heat exchanger and an electric heater. Because the heat loads of the heat exchangers are kept consistent, the basic structure limits that the air conditioner cannot realize the zone air supply in an air conditioning room according to the needs of users, and the electric heater cannot be matched with more than one heat exchanger, so that a flexible and user-friendly control scheme is formed.
The Chinese patent application (application number 201610707497X) provides a multi-heat exchanger and multi-electric heater matched multi-stage refrigeration dehumidification temperature control device, wherein a plurality of heat exchangers are arranged in parallel, and the multi-heat exchanger multi-stage dehumidification device can be used for carrying out multi-stage dehumidification on high-temperature and high-humidity inlet air into low-temperature and low-humidity outlet air. In the device, a multi-stage heat exchanger and a multi-stage electric heating device are arranged in one air duct, and obviously, the air conditioner cannot realize the partitioned air supply in an air conditioning room according to the needs of users, and cannot form a flexible control scheme for matching the heat exchanger with the electric heating device.
Disclosure of Invention
The invention provides an electric heating control method for a partitioned air supply air conditioner, which aims to solve the problems that the air conditioner in the prior art cannot flexibly arrange an electric heater, so that the electric heater is matched with a heat exchanger to form an ideal control scheme, and partitioned air supply in an air conditioning room is realized according to the needs of users.
An electric heating control method of a partitioned air supply air conditioner is characterized in that an air conditioner indoor unit at least comprises at least two heat exchangers which are independently arranged, the heat exchangers are respectively arranged in a shell of an air conditioner body, and the shells of adjacent air conditioner bodies are arranged at intervals; the shell is provided with an air inlet and an air outlet, and a cross-flow fan is also arranged in the shell; an electric heater is arranged among the heat exchanger, the air outlet and the cross-flow fan; a drainage air channel is formed in the shell, and the air inlet, the heat exchanger, the cross-flow fan and the air outlet are sequentially arranged in the drainage air channel along the air flowing direction; through air channels are formed between the shells of the adjacent air conditioner bodies, and the induced air of the two adjacent guide air channels and the air in the through air channels are mixed in the through air channels and sent to a specified area of an air-conditioning room; the cross-flow fan and the electric heater are independently controlled, and each heat exchanger is provided with a coil temperature sensor; the control method comprises the following stages:
the starting control phase, the starting of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional component meets a starting set condition; determining whether the indoor environment temperature meets a starting set condition; determining whether the difference value between the indoor environment temperature and the set temperature meets a starting set condition; determining whether the detection value of a coil temperature sensor arranged in the same shell with the electric heater meets the set starting condition or not; when all the starting setting conditions are met, the electric heater is started; and/or
The closing control phase, the closing of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional part meets a closing setting condition; determining whether the indoor ambient temperature meets a set condition for closing; determining whether the difference value between the indoor environment temperature and the set temperature meets a set closing condition; determining whether the detection value of the coil temperature sensor meets a set closing condition or not; when one of the off setting conditions is met, the electric heater is switched to an off state or is kept in the off state;
wherein the linkage function includes at least a compressor and a crossflow blower.
Further, in the starting control stage, if the compressor and one cross-flow fan corresponding to the electric heater are both in a working state and the working time of the compressor meets a first duration, determining that the linkage functional component meets a starting setting condition; if the indoor environment temperature is lower than a first environment temperature set value, determining that the indoor environment temperature meets a starting set condition; if the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference, the difference value between the indoor environment temperature and the set temperature meets the starting set condition; if the detection value of one coil temperature sensor arranged corresponding to the electric heater is smaller than the first coil temperature set value, the detection value of the coil temperature sensor meets the starting set condition.
Further, in the closing control stage, if the compressor and at least one cross-flow fan arranged corresponding to the electric heater are in a non-running state, determining that the functional component meets a closing setting condition; if the indoor environment temperature is greater than or equal to the second environment temperature set value, determining that the indoor environment temperature meets a closing set condition; if the difference value between the indoor environment temperature and the set temperature is smaller than or equal to the second temperature difference, the difference value between the indoor environment temperature and the set temperature meets the set closing condition; and if the detection value of at least one coil pipe temperature sensor corresponding to the electric heater is larger than the second coil pipe temperature set value, the detection value of the coil pipe temperature sensor meets the set closing condition.
Furthermore, the method also comprises a wind speed linkage control stage; in the wind speed linkage control stage, the electric heater and the corresponding cross-flow fan arranged in the same shell have the following wind speed linkage relationship: and if any one electric heater is in a working state, controlling the real-time running wind speed of the cross-flow fan arranged in the same shell with the electric heater in the working state to be higher than the low wind speed corresponding to the low wind speed gear.
Furthermore, the air outlet is provided with an air deflector and also comprises an air deflector linkage control stage; in the linkage control stage of the air guide plates, the electric heater and the air guide plates correspondingly arranged on the same shell have the following linkage relation of the air guide plates: and if any electric heater is in a working state and the air deflector arranged on the shell together with the electric heater in the working state is in a closed state, controlling the electric heater in the working state to be closed.
Furthermore, an outer ring temperature linkage control stage is also included; in the outer ring temperature linkage control stage, the electric heater and the outdoor environment temperature have the following linkage relation; and if the outdoor environment temperature meets the first outer ring temperature setting condition, controlling all the electric heaters to keep or switch to a closed state.
Furthermore, the method also comprises a time-temperature linkage control stage; in the time-temperature linkage control stage, the following linkage relation exists among the operation time of the electric heater, the indoor environment temperature and the set temperature difference; when the running time of all the electric heaters meets the first set working time length, if the temperature difference between the indoor environment temperature and the set temperature meets a third temperature difference set condition, controlling part of the electric heaters to be closed; if the indoor environment temperature and the set temperature difference meet the fourth temperature difference set condition, controlling all the electric heaters to be turned off; after all the electric heaters are turned off, if the indoor environment temperature and the set temperature difference meet the third temperature difference set condition again, controlling a part of the electric heaters to be started, and if the indoor environment temperature and the set temperature difference meet the fifth temperature difference set condition, controlling all the electric heaters to be started; wherein the fifth temperature difference setting condition, the third temperature difference setting condition and the fourth temperature difference setting condition are sequentially decreased progressively.
Preferably, in the time-temperature linkage control stage, at least one protection period exists between the off state and the on state of any one electric heater.
Furthermore, the priority of the outer ring temperature linkage control stage is higher than that of the air deflector linkage control stage; the priority of the air deflector linkage control stage is higher than that of the time-temperature linkage control stage.
The electric heating control method of the zoned air supply air conditioner provided by the invention establishes the independent coupling incidence relation between the working state of each component in the zoned air supply air conditioner and any electric heater through the starting control stage and the closing control stage, and independently controls the operation of any electric heater by integrating the indoor environment temperature, the temperature difference between the indoor environment temperature and the set temperature and the real-time feedback temperature of the coil temperature, thereby forming a flexible and comfortable control scheme with high intelligent degree.
Also discloses an air conditioner, which adopts an electric heating control method. The air conditioner indoor unit at least comprises at least two heat exchangers which are independently arranged, the heat exchangers are respectively arranged in the shell of one air conditioner body, and the shells of the adjacent air conditioner bodies are arranged at intervals; the shell is provided with an air inlet and an air outlet, and a cross-flow fan is also arranged in the shell; an electric heater is arranged among the heat exchanger, the air outlet and the cross-flow fan; a drainage air channel is formed in the shell, and the air inlet, the heat exchanger, the cross-flow fan and the air outlet are sequentially arranged in the drainage air channel along the air flowing direction; through air channels are formed between the shells of the adjacent air conditioner bodies, and the induced air of the two adjacent guide air channels and the air in the through air channels are mixed in the through air channels and sent to a specified area of an air-conditioning room; the cross-flow fan and the electric heater are independently controlled, and each heat exchanger is provided with a coil temperature sensor; the control method comprises the following stages:
the starting control phase, the starting of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional component meets a starting set condition; determining whether the indoor environment temperature meets a starting set condition; determining whether the difference value between the indoor environment temperature and the set temperature meets a starting set condition; determining whether the detection value of a coil temperature sensor arranged in the same shell with the electric heater meets the set starting condition or not; when all the starting setting conditions are met, the electric heater is started; and/or
The closing control phase, the closing of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional part meets a closing setting condition; determining whether the indoor ambient temperature meets a set condition for closing; determining whether the difference value between the indoor environment temperature and the set temperature meets a set closing condition; determining whether the detection value of the coil temperature sensor meets a set closing condition or not; when one of the off setting conditions is met, the electric heater is switched to an off state or is kept in the off state;
wherein the linkage function includes at least a compressor and a crossflow blower.
The air conditioner provided by the invention has the advantages of good air conditioning effect, flexible control mode and high comfort.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a first embodiment of a method for controlling electrical heating of a zoned air conditioner according to the present invention;
fig. 2 is a flowchart of a method for controlling electric heating of a zoned air conditioner according to a second embodiment of the present invention.
FIG. 3 is a sectional view of the zoned feed air conditioner in the control method shown in FIG. 1 or FIG. 2;
FIG. 4 is a front view of the zoned feed air conditioner of FIG. 3;
FIG. 5 is a rear view of the zoned feed air conditioner of FIG. 4;
fig. 6 is an exploded view of the zoned air supply air conditioner shown in fig. 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 3 to 6, schematic diagrams of the zoned air conditioner according to the present invention are shown. As shown in the drawings, the zoned air-feeding air conditioner includes a base 500 and at least two air-conditioning bodies disposed on the base 500. It can be understood that the number of the air conditioner bodies can be more according to actual needs. The following takes two adjacent air conditioner bodies, i.e. a first air conditioner body 1 and a second air conditioner body 2 as shown in the figure, as an example, and specifically describes a specific structure of a zoned air supply air conditioner. The base 500 is enclosed by a base rear wall 9, base side walls 7, 8, a base front wall 6, and a chassis 5. Functional components 4 such as humidifying components are provided in the base 500. The first air conditioner body 1 includes a first casing 10 and a first air guide duct B1 formed in the first casing 10, and the second air conditioner body 2 includes a second casing 20 and a second air guide duct B2 formed in the second casing 20.
Structurally, unlike the prior art, the first casing 10 and the second casing 20 are independently spaced apart without interference therebetween. The first casing 10 comprises a first casing rear wall 10-1, a first casing top wall 10-2 and a first casing front wall 10-3, and the first casing rear wall 10-1, the first casing top wall 10-2 and the first casing front wall 10-3 are all designed to be streamlined. The second housing 20 includes a second housing rear wall 20-1, a second housing top wall 20-2, and a second housing front wall 20-3. The second housing top wall 20-2 and the second housing front wall 20-3 are streamlined. The first casing rear wall 10-1 is provided with a first air inlet 11, the first casing front wall 10-3 is provided with a first air outlet 14, and the first casing 10 is internally provided with a first cross flow fan 13 and a first heat exchanger 12. The first crossflow blower 13 includes a first crossflow blower fan 131 and a first crossflow blower motor 132, and the second crossflow blower 23 includes a second crossflow blower fan 231 and a second crossflow blower motor 232. The first through-flow fan motor 132 is disposed in the first housing top wall 10-2. The first air inlet 11, the first heat exchanger 12, the first through-flow fan 13, and the first air outlet 14 are sequentially arranged in the first air guide duct B1 along the air flowing direction. A first electric heater 81 is provided between the first heat exchanger 12, the first through-flow fan 13, and the first air outlet 14. A second air outlet 24 is formed on the front wall of the second casing 20, a second air inlet 21 is formed on the rear wall 20-1 of the second casing, and a second cross-flow fan 23 and a second heat exchanger 22 are arranged in the second casing 20. Second crossflow blower motor 232 is disposed in second housing top wall 20-2. The second air inlet 21, the second heat exchanger 22, the second cross-flow fan 23 and the second air outlet 24 are sequentially arranged in the second air guide duct B2 along the air flowing direction. A second electric heater 82 is provided between the second heat exchanger 22, the second cross-flow fan 23, and the second air outlet 24. The first air conditioner body 1 and the second air conditioner body 2 are adjacently arranged, a through air duct A is formed between the first shell 10 and the second shell 20, the cross section shape of the through air duct A is limited through the streamline design of the first shell front wall 10-3, the first shell rear wall 10-1 and the first shell top wall 10-2 and the streamline design of the second shell front wall 20-3, the second shell rear wall 20-1 and the second shell top wall 20-2, and the flow rate and the flow direction of air in the through air duct A are further limited. The induced air in the first induced air duct B1 and the second induced air duct B2 and the air in the through air duct A are mixed in the through air duct. The through air duct a is preferably in a double-trumpet shape from gradually expanding to reducing to gradually expanding as shown in fig. 6. The converging preferably occurs between the first outlet 14 and the second outlet 24, i.e. through the middle section and the front end of the air duct a. The mixed air is sent to a designated area of the air-conditioned room. A first coil temperature sensor 71 and a second coil temperature sensor 72 are provided on the first heat exchanger 12 and the second heat exchanger 22, respectively. After the air conditioner is in the on state, the first coil temperature sensor 71 and the second coil temperature sensor 72 return the first coil temperature detection value and the second coil temperature detection value in real time. If a plurality of air conditioning bodies are provided, one coil temperature sensor is provided for each heat exchanger in the air conditioning body. The first air deflector 91 is disposed at the first outlet 14, and the second air deflector 92 is disposed at the second outlet 24. The first air deflector 91 and the second air deflector 92 are respectively controlled by independent stepping motors. It is understood that the zoned air conditioner may further include a plurality of air conditioning bodies, such as four air conditioning bodies, eight air conditioning bodies, and so on, and in the case of providing a plurality of air conditioning bodies, the internal structure of the air conditioning body is the same as that of the above-described embodiment.
In the embodiment of the invention, the working state of the electric heater is linked with other functional components in the air conditioner, and the electric heater can be matched with the functional components in one air conditioner body or the functional components in two air conditioner bodies to cooperatively control according to various modes set by a user. The electric heating control method of the zoned air supply air conditioner disclosed by the embodiment comprises the following stages.
And starting a control phase. The condition for entering the start-up control stage, in which the electric heaters provided in the different housings are independently controlled but follow the same control steps and the same control conditions, is that the air conditioner is in a heating state first. The activation of any one of the electric heaters includes the step of first determining whether an operating state of a functional part linked with the electric heater satisfies an activation setting condition. The linkage functional components refer to other functional components in the air conditioner, and as a protection condition, if the operating states of the functional components do not meet the set condition, the independent operation of the electric heater cannot improve the air conditioning effect, and irreversible damage can be caused to the electric heater and the air conditioner. In the starting control stage, the linkage functional components at least comprise a cross flow fan with an electric heater arranged in the same shell and a compressor arranged in the outdoor unit. And if the working time of the compressor meets the first time span, preferably set to be within 5 seconds, and the cross-flow fan arranged in the same shell with the corresponding electric heater is in a working state, determining that the linkage functional part meets the starting condition. In parallel, it is determined whether the indoor ambient temperature satisfies a start-up setting condition. And if the indoor environment temperature is lower than the first environment temperature set value, determining that the indoor environment temperature meets the starting set condition. Preferably, the first ambient temperature setting is 22 ℃. And in parallel, whether the difference value between the indoor environment temperature and the set temperature meets the starting set condition is determined. And if the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference, the difference value between the indoor environment temperature and the set temperature meets the starting set condition. Preferably, the first temperature difference is 2 ℃. And in parallel, whether the detection value of a coil temperature sensor arranged in the same shell with the electric heater meets the starting set condition or not is determined. And if the detection value of the coil temperature sensor corresponding to the electric heater is smaller than the first coil temperature set value, the detection value of the coil temperature sensor meets the starting set condition. The first coil temperature setting is preferably 52 ℃. The electric heater is activated only when all of the above-mentioned start-up setting conditions are satisfied. In the present embodiment, each electric heater is individually determined, and if one of the electric heaters satisfies the above-described all-on setting condition, one electric heater is activated, and if two electric heaters satisfy the above-described all-on setting condition, two electric heaters are activated.
Correspondingly, the method also comprises a closing control stage, and the closing of any one electric heater comprises the following steps in parallel. A. It is determined whether the operating state of the linkage function satisfies a close setting condition. And if the compressor or the cross-flow fan corresponding to any one of the electric heaters is in a non-operation state, determining that the functional component corresponding to the electric heater meets a set condition of closing. B. And determining whether the indoor environment temperature meets a closing set condition, and if the indoor environment temperature is greater than or equal to a second environment temperature set value, determining that the indoor environment temperature meets the closing set condition, wherein the second environment temperature set value is preferably 23 ℃. C. And determining whether the difference value between the indoor environment temperature and the set temperature meets a closing set condition, wherein if the difference value between the indoor environment temperature and the set temperature is less than or equal to a second temperature difference, the difference value between the indoor environment temperature and the set temperature meets the closing set condition, and the second temperature difference is preferably 1 ℃. D. And determining whether the detection value of the coil temperature sensor corresponding to any one of the electric heaters meets a closing set condition, wherein if the detection value of the coil temperature sensor corresponding to the electric heater is greater than a second coil temperature set value, the detection value of the coil temperature sensor meets the closing set condition, and the second coil temperature set value is preferably 57 ℃. When one of the off setting conditions is satisfied, the electric heater is switched to an off state or kept in the off state. In the present embodiment, each electric heater is individually determined, for example, if one of the electric heaters satisfies one of the off setting conditions, the electric heater is turned off, and if the other electric heater does not satisfy any of the off setting conditions, the electric heater is kept in an operating state.
Through the start control stage and the close control stage, the working state of each part in the zone air supply air conditioner and the independent coupling incidence relation of any electric heater are established in the embodiment, the indoor environment temperature, the temperature difference between the indoor environment temperature and the set temperature and the real-time feedback temperature of the coil temperature are integrated, and a flexible and comfortable control scheme is formed. For example, if the user is in the area a of the room and considers that the temperature of the area a is low and the temperature of the area B is high, the first cross flow fan 13 in the first casing 10 corresponding to the area a is set to operate, and the second cross flow fan 23 in the second casing 20 corresponding to the area B is set to stop, the zoned air conditioner automatically controls the first electric heater 81 to operate and the second electric heater 82 to turn off by the above-described control method. The temperature in the area A rises rapidly, the temperature in the area B is slightly reduced, and the adjusting effect is in accordance with the ideal expectation of a user. The indoor ambient temperature can be detected in real time by an indoor ambient temperature sensor, but it is more preferable that an indoor ambient temperature sensor (not shown in the figure) is respectively disposed at the first air outlet 14 and the second air outlet 24, and temperature detection values of the two indoor ambient temperature sensors are respectively used as the indoor ambient temperatures in the control conditions of the start-up control stage and the shut-down control stage of the two electric heaters. By adopting the latter mode, the control precision is higher, and the comfort of the air conditioner is better.
Referring to fig. 2, the method for controlling electric heating of a zoned air-feeding air conditioner disclosed in the present invention further includes a wind speed linkage control stage. In the wind speed linkage control stage, at least one electric heater is in a working state firstly. The air conditioner automatically establishes the wind speed linkage relation between the electric heater in a working state and the cross flow fan arranged in the same shell. Specifically, if a controller of an indoor unit of the air conditioner receives an electric signal that any electric heater is in a working state, a wind speed control signal is output through an output interface, and the real-time running wind speed of a cross flow fan which is in the same shell with the electric heater is controlled to be higher than the low wind speed corresponding to a low wind speed gear. Preferably, in the wind speed linkage control stage, the real-time running wind speed of the cross-flow fan is set to be the wind stroke speed. For example, if the user considers that the room temperature of the area a is low, the first through-flow fan 13 located in the first casing of the area a is set to be in a low wind speed state. The air conditioner controller judges that the compressor works for more than 5 seconds at the same time, the temperature detection value of the first indoor environment temperature sensor corresponding to the first air outlet 14 is 18 ℃, the indoor temperature set by a user is 21 ℃, and the detection value of the first coil pipe temperature sensor 71 corresponding to the first electric heater 81 is 45 ℃, so that the air conditioner automatically controls the first electric heater 81 to run, and meanwhile, the air conditioner controller automatically and forcibly controls the first through-flow fan 13 to run according to the wind speed of medium wind, the temperature rise speed of the area A is further increased in a short time, and the comfort of the user is higher.
Referring to fig. 2, the method for controlling electric heating of a zoned air-feeding air conditioner disclosed in the present invention further comprises a linkage control stage of air deflectors; in the linkage control stage of the air deflectors, when any electric heater works, the following linkage relation exists between the electric heater and the corresponding air deflector; and if any electric heater is in a working state and the air guide plates correspondingly arranged on the same shell are in a closed state, controlling the electric heater in the working state to be closed. In the linkage control stage of the air deflector, the state of the air deflector can be actively set by a user. For example, if the user feels that the temperature of the B area is high, the second cross flow fan 23 is not controlled to be turned off, but the second air deflector 92 of the second air outlet 24 corresponding to the B area is set to be turned off in a remote control or manual mode, after receiving the air deflector position signal fed back by the stepping motor, the air conditioner indoor unit controller does not determine the turning-off control stage or the setting condition of the wind speed linkage state, and directly outputs an electric signal to control the second electric heater 82 in the working state, which is arranged corresponding to the second air deflector 92, to be turned off, so that the effects of saving energy and protecting the electric heater are achieved. It can thus also be concluded that the control priority of the air deflector linkage control phase is higher than the closing control phase or the wind speed linkage phase.
Referring to fig. 2, the method for controlling electric heating of a zoned air-feeding air conditioner disclosed in the present invention further includes an external ambient temperature linkage control stage. In the outer ring temperature linkage control stage, the following linkage relation exists between any one electric heater and the outdoor environment temperature; and if the outdoor environment temperature meets the first outer ring temperature setting condition, controlling all the electric heaters to keep or switch to a closed state. It is preferable to set the first external ring temperature setting condition as whether or not the outdoor ambient temperature is 0 ℃ or higher. When the outdoor ambient temperature is higher than 0 ℃, all the electric heaters are in a closed state by default. Therefore, it can be considered that if the outdoor ambient temperature is higher than 0 ℃, and the electric heater is in the on state, it is an abnormal operation state. Therefore, when the outdoor environment temperature is higher than 0 ℃, the control chip of the indoor unit of the air conditioner controls all the electric heaters to keep or switch to the off state. Therefore, the priority of the outer ring temperature linkage control stage is higher than that of the air deflector linkage control stage. For example, if the outdoor temperature is higher than 5 ℃, even if all the start-up setting conditions of the start-up control stage are satisfied, neither the first electric heater 81 nor the second electric heater 82 is automatically started up. If the user needs to turn on the first electric heater 81 and the second electric heater 82 at this time, manual control by a remote controller is required. The external loop temperature linkage control stage can effectively inhibit the invalid operation of the electric heater and reduce the overall energy consumption of the air conditioner.
Referring to fig. 2, after the first electric heater 81 and/or the second electric heater 82 pass through the start-up control period and start to operate, the air conditioner enters a smooth operation period in which the operation state of the linkage function part is substantially maintained smooth, but there may be a deviation in the indoor ambient temperature. Under the condition, the linkage matching work of the first electric heater 81 and the second electric heater 82 is realized through the time-temperature linkage control stage. Specifically, at least one indoor environment temperature sensor is arranged in the air conditioner, when the running time of the first electric heater 81 and the second electric heater 82 meets a first set working time length, if the temperature difference between the indoor environment temperature and the set temperature meets a third temperature difference set condition, the indoor environment temperature is basically close to the set temperature, the comfort of the air-conditioned room is high, and part of the electric heaters are controlled to be turned off, namely the first electric heater 81 or the second electric heater 82 is turned off; if the temperature difference between the indoor ambient temperature and the set temperature is further decreased and the indoor ambient temperature is equal to the set temperature, the first electric heater 81 and the second electric heater 82 are controlled to be turned off when the fourth temperature difference setting condition is satisfied. After the first electric heater 81 and the second electric heater 82 are both turned off, the temperature difference between the indoor ambient temperature and the set temperature is gradually increased, and when the third temperature difference set condition is satisfied again, the first electric heater 81 or the second electric heater 82 is controlled to be started again; if the temperature difference acceleration rate between the indoor environment temperature and the set temperature is large, and the temperature difference exceeds the third temperature difference setting condition and meets the fifth temperature difference setting condition, the first electric heater 81 and the second electric heater 82 are all started again, so that the effect of keeping the room temperature stable is achieved. Wherein the fifth temperature difference setting condition, the third temperature difference setting condition and the fourth temperature difference setting condition are decreased in sequence. The time-temperature linkage stage is a control scheme for further optimizing the indoor temperature, and the priority of the time-temperature linkage stage is lower than that of the air deflector linkage control stage, the outer ring temperature linkage control stage and the closing control stage. In addition, in the time-temperature linkage control stage, at least one protection period exists between the off state and the on state of any one electric heater. The guard period is preferably set to 1 minute.
The invention also provides an air conditioner applying the control method. The detailed structure of the air conditioner and the detailed steps of the control method are described in the above embodiments and the attached drawings of the specification. The detailed description is omitted, and the air conditioner adopting the control method has the same technical effect.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An electric heating control method of a partitioned air supply air conditioner is characterized in that an air conditioner indoor unit at least comprises at least two heat exchangers which are independently arranged, the heat exchangers are respectively arranged in a shell of an air conditioner body, and the shells of adjacent air conditioner bodies are arranged at intervals; the shell is provided with an air inlet and an air outlet, and a cross-flow fan is also arranged in the shell; an electric heater is arranged among the heat exchanger, the air outlet and the cross-flow fan; a drainage air channel is formed in the shell, and the air inlet, the heat exchanger, the cross-flow fan and the air outlet are sequentially arranged in the drainage air channel along the air flowing direction; through air channels are formed between the shells of the adjacent air conditioner bodies, and the induced air of the two adjacent guide air channels and the air in the through air channels are mixed in the through air channels and sent to a specified area of an air-conditioning room; the cross-flow fan and the electric heater are independently controlled, and each heat exchanger is provided with a coil temperature sensor; the control method comprises the following stages:
the starting control phase, the starting of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional component meets a starting set condition; determining whether the indoor environment temperature meets a starting set condition; determining whether the difference value between the indoor environment temperature and the set temperature meets a starting set condition; determining whether the detection value of a coil temperature sensor arranged in the same shell with the electric heater meets the set starting condition or not; when all the starting setting conditions are met, the electric heater is started; and/or
The closing control phase, the closing of any electric heater comprises the following parallel steps: determining whether the working state of the linkage functional part meets a closing setting condition; determining whether the indoor ambient temperature meets a set condition for closing; determining whether the difference value between the indoor environment temperature and the set temperature meets a set closing condition; determining whether the detection value of the coil temperature sensor meets a set closing condition or not; when one of the off setting conditions is met, the electric heater is switched to an off state or is kept in the off state;
wherein the linkage function includes at least a compressor and a crossflow blower;
in the starting control stage, if the compressor and one cross-flow fan corresponding to the electric heater are both in a working state and the working time of the compressor meets a first time length, determining that the linkage functional part meets a starting set condition; if the indoor environment temperature is lower than a first environment temperature set value, determining that the indoor environment temperature meets a starting set condition; if the difference value between the indoor environment temperature and the set temperature is larger than or equal to the first temperature difference, the difference value between the indoor environment temperature and the set temperature meets the starting set condition; if the detection value of one coil temperature sensor arranged corresponding to the electric heater is smaller than the first coil temperature set value, the detection value of the coil temperature sensor meets the starting set condition.
2. The zoned air-feeding air conditioner electric heating control method according to claim 1, wherein in the shutdown control stage, if the compressor and at least one cross-flow fan provided corresponding to the electric heater are both in a non-operating state, it is determined that the functional component satisfies a shutdown setting condition; if the indoor environment temperature is greater than or equal to the second environment temperature set value, determining that the indoor environment temperature meets a closing set condition; if the difference value between the indoor environment temperature and the set temperature is smaller than or equal to the second temperature difference, the difference value between the indoor environment temperature and the set temperature meets the set closing condition; and if the detection value of at least one coil pipe temperature sensor corresponding to the electric heater is larger than the second coil pipe temperature set value, the detection value of the coil pipe temperature sensor meets the set closing condition.
3. The method for controlling the electric heating of the zoned air supply air conditioner according to claim 1 or 2, further comprising a wind speed linkage control stage; in the wind speed linkage control stage, the electric heater and the corresponding cross-flow fan arranged in the same shell have the following wind speed linkage relationship: and if any one electric heater is in a working state, controlling the real-time running wind speed of the cross-flow fan arranged in the same shell with the electric heater in the working state to be higher than the low wind speed corresponding to the low wind speed gear.
4. The method of claim 3, wherein the outlet is provided with an air deflector, further comprising an air deflector linkage control stage; in the linkage control stage of the air guide plates, the electric heater and the air guide plates correspondingly arranged on the same shell have the following linkage relation of the air guide plates: and if any electric heater is in a working state and the air deflector arranged on the shell together with the electric heater in the working state is in a closed state, controlling the electric heater in the working state to be closed.
5. The method of claim 4, further comprising an outer-loop temperature linkage control stage; in the outer ring temperature linkage control stage, the electric heater and the outdoor environment temperature have the following linkage relation; and if the outdoor environment temperature meets the first outer ring temperature setting condition, controlling all the electric heaters to keep or switch to a closed state.
6. The method of claim 5, further comprising a time-temperature linkage control stage; in the time-temperature linkage control stage, the following linkage relation exists among the operation time of the electric heater, the indoor environment temperature and the set temperature difference; when the running time of all the electric heaters meets the first set working time length, if the temperature difference between the indoor environment temperature and the set temperature meets a third temperature difference set condition, controlling part of the electric heaters to be closed; if the indoor environment temperature and the set temperature difference meet the fourth temperature difference set condition, controlling all the electric heaters to be turned off; after all the electric heaters are turned off, if the indoor environment temperature and the set temperature difference meet the third temperature difference set condition again, controlling a part of the electric heaters to be started, and if the indoor environment temperature and the set temperature difference meet the fifth temperature difference set condition, controlling all the electric heaters to be started; wherein the fifth temperature difference setting condition, the third temperature difference setting condition and the fourth temperature difference setting condition are sequentially decreased progressively.
7. The method of claim 6, wherein at least one protection period is provided between the off state and the on state of any one of the electric heaters in the time-temperature linkage control stage.
8. The method of claim 6, wherein the outer loop temperature coordinated control phase has a higher priority than the air deflector coordinated control phase; the priority of the air deflector linkage control stage is higher than that of the time-temperature linkage control stage.
9. An air conditioner characterized by adopting the zoned air supply air conditioner electric heating control method as claimed in any one of claims 1 to 8.
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| CN112923531B (en) * | 2021-01-27 | 2022-08-19 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner and air conditioner |
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| CN114251735A (en) * | 2021-12-08 | 2022-03-29 | 广东美的制冷设备有限公司 | Air conditioner, control method and device thereof and storage medium |
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Effective date of registration: 20210222 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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