CN203413766U - Indoor unit load capacity control system - Google Patents
Indoor unit load capacity control system Download PDFInfo
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- CN203413766U CN203413766U CN201320415965.8U CN201320415965U CN203413766U CN 203413766 U CN203413766 U CN 203413766U CN 201320415965 U CN201320415965 U CN 201320415965U CN 203413766 U CN203413766 U CN 203413766U
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Abstract
The utility model discloses an indoor unit load capacity control system. The system comprises an indoor unit, more than two master control boards and a power control board, wherein the power control board provides a voltage required for operation of the master control boards; the master control boards are connected with the indoor unit, generate corresponding load capacity control signals expressed by load capacity dialing digits according to input load capacity information and output the load capacity control signals to the indoor unit; the indoor unit receives more than two load capacity control signals output by the master control boards, combines the signals with a reference value of a preset load capacity dialing digit and acquires indoor unit load capacity which corresponds to each load capacity control signal for accumulation; the indoor unit load capacity is set to be the accumulated indoor unit load capacity; the more than two master control boards are connected to the indoor unit in a parallel mode. According to the indoor unit load capacity control system, the development cycle in the process of upgrading a multi-split air conditioning system can be reduced.
Description
Technical field
The utility model relates to multi-gang air-conditioner control technology, relates in particular to a kind of indoor set load capacity control system.
Background technology
Quickening increasingly along with domestic city process, clustering building are on the increase, and simultaneously, the lifting of people to the comfortableness of inhabitation and working environment, the total load capacity that requirement can be carried as the multi-online air-conditioning system of main body air handling system constantly increases, to adapt to the continuous expansion of clustering building scale.
Multi-online air-conditioning system is mainly used in the humiture in control room, generally by one or more off-premises station, line control machine and indoor set load capacity composition of the control system.Wherein, line control machine is connected with indoor set load capacity control system, and indoor set load capacity control system is connected with off-premises station again.Technical staff sends regulating command by line control machine, for example, every indoor set correspondence connects an independently line control machine, or, by Centralized Controller, carry out regulation and control, if need to change multi-online air-conditioning system load capacity, can be directly indoor units by the corresponding number of line control machine start and stop complete, control indoor set load capacity control system and off-premises station and move according to regulating command.Compare with many domestic air conditionings, the off-premises station of multi-online air-conditioning system shares, can effectively reduce equipment cost, and can realize the centralized management of each indoor set load capacity control system, can start separately an indoor set load capacity control system by line control machine moves, also can start many indoor set load capacity control system operations simultaneously, make to control more flexible, but due to the port number quantitative limitation of line control machine and the consideration of other factors, the indoor set load capacity control system number of units that multi-online air-conditioning system can be connected is comparatively limited.
Fig. 1 is existing indoor set load capacity control system structural representation.Referring to Fig. 1, this system comprises: one or more indoor set, the master board of controlling each indoor set load capacity and power board, wherein,
Power board provides work required voltage for master board, master board is connected with indoor set with line control machine respectively, be used for according to the load capacity information of input, generate corresponding load capacity control signal, by send the mode of load capacity control signal to indoor set, indoor set load capacity is controlled; Indoor set, according to the load capacity control signal receiving, is adjusted the load capacity of self.Wherein,
Power board comprises: power module and filtration module, power module access power supply, comprise: live wire end (L1), common port (N) and earth terminal (E1), live wire end and common port are connected to filtration module by cable respectively, filtration module carries out after filtering processing the voltage signal of input, export master board to, for master board provides work required voltage.
Master board comprises: sensor control module, air-blower control module, throttling arrangement control module and communication module, by wired mode, be connected with indoor set respectively, communication module also with external equipment, for example, display is connected, wherein,
Sensor control module, for receiving the temperature that is arranged on each sensor sensing on indoor set, determines the running status of indoor set, exports communication module to;
Communication module, the load capacity information for reception technique personnel input, exports respectively air-blower control module and throttling arrangement control module to; The indoor set running state information that receives operational mode information and obtain according to the information judgement of the state sensor output arranging on indoor set, exports external equipment to;
Wherein, operational mode information refers to that indoor set is in refrigerating state or heats state.Indoor set running state information refers to indoor set normal operation, break down or abnormal etc.
Technical staff obtains indoor set operational mode information and indoor set running state information by external equipment, so that indoor set operational mode and load capacity are controlled.
Air-blower control module, for according to the load capacity information receiving, generates corresponding rotation speed of fan control signal, exports the rotation speed of fan control signal of generation to indoor set, so that indoor set arranges the rotating speed of blower fan according to rotation speed of fan control signal;
Wherein, load capacity control signal represents with load capacity dialing figure place, comprises rotation speed of fan control signal and the control signal of damming.The corresponding master board of each indoor set, the mode that master board is dialled by load capacity, controls indoor set load capacity.For example; it for indoor set load capacity, is the situation of 5; if the load capacity of design dialing figure place is set to 4; the a reference value of load capacity dialing figure place is 5/15; and shut down with 0000 expression; 0001 represents that indoor set load capacity is 5/15, and 0010 represents that indoor set load capacity is 10/15, so analogizes.For instance, if the load capacity information receiving is 3, carry out after the number conversion of load capacity dailing bit, generating corresponding load capacity dialing information is 1001, thereby the rotation speed of fan control signal of generation can be expressed as 1001.
Indoor set is according to the rotation speed of fan control signal receiving, for example, 1001, combine with a reference value of load capacity dialing figure place, obtain indoor set load capacity information corresponding to rotation speed of fan control signal, the indoor set load capacity of inquiry storage and the mapping relations of rotation speed of fan, obtain rotation speed of fan corresponding to rotation speed of fan control signal, and the rotation speed of fan of indoor set is set on the rotation speed of fan obtaining.
Throttling arrangement control module, be used for according to the control signal of damming corresponding to load capacity Information generation receiving, export the control signal of damming generating to indoor set, so that indoor set arranges the unlatching threshold degree of electric expansion valve on indoor-unit cooling-medium pipeline according to the control signal of damming.
Wherein, indoor set is according to the control signal of damming receiving, for example, 1001, combine with a reference value of load capacity dialing figure place, obtain indoor set load capacity information corresponding to the control signal of damming, the mapping relations that the indoor set load capacity of inquiry storage and electric expansion valve are opened threshold degree, obtain electric expansion valve corresponding to the control signal of damming and open threshold degree, according to the electric expansion valve obtaining, open the aperture that threshold degree arranges electric expansion valve.
At present, along with the operation scale of multi-online air-conditioning system is increasing, the indoor load of bearing is also more and more heavier, for total load number that effectively expansion multi-online air-conditioning system can be born and reduce operating cost, in the situation that the indoor set number of units that can connect is comparatively limited, requirement can suitably increase the load capacity of separate unit indoor set.Because the load capacity of indoor set can be by regulating the size of refrigerant pipeline to realize, thereby, do not changing under the prerequisite of indoor machine structure, can be easier to realize the upgrading to indoor set load capacity, but, figure place restriction due to the master board load capacity dial-up of existing control indoor set load capacity, make the load capacity control signal of output can not meet the upgrade requirement of indoor set load capacity, for example, it for former indoor set load capacity, is the situation of 5, by upgrading, its load capacity is 10, but air-blower control module is according to the rotation speed of fan control signal receiving, the indoor set load capacity maximum of obtaining that combines with a reference value of load capacity dialing figure place can only be 5, and maximum can indoor set load capacity be set to 5, can not effectively utilize the upgrading load capacity of indoor set.For this reason, need to redesign master board for the indoor set of upgrading, to increase the figure place of master board load capacity dial-up, for example, under the constant situation of a reference value that keeps load capacity dialing figure place, the load capacity figure place that dials is designed to 5, like this, indoor set load capacity can be adjusted to 10.But because needs redesign master board, make the multi-online air-conditioning system construction cycle in when upgrading longer, can not meet the growing demand of technical staff and air-conditioning market.
Utility model content
Embodiment of the present utility model provides a kind of indoor set load capacity control system, the construction cycle while reducing multi-online air-conditioning system upgrading.
For achieving the above object, a kind of indoor set load capacity control system that the utility model embodiment provides, this system comprises: indoor set, master board and power board, wherein,
Power board, is connected with master board;
Master board, is connected with indoor set, for receiving the load capacity information of input, to indoor set, exports the corresponding load capacity control signal representing with load capacity dialing figure place according to load capacity Information generation;
Indoor set, for receiving the load capacity control signal of two above master board outputs, a reference value with the load capacity dialing figure place with setting in advance combines, obtain indoor set load capacity corresponding to each load capacity control signal, add up, indoor set load capacity is set in cumulative indoor set load capacity, and described two above master boards access indoor set with parallel way.
Preferably, described master board comprises: sensor control module, air-blower control module, throttling arrangement control module and communication module, be connected with indoor set respectively, and communication module is also connected with external equipment, wherein,
Sensor control module, for receiving the temperature that is arranged on each sensor sensing on indoor set, exports the operational mode information of determining to communication module;
Communication module, for receiving the load capacity information of input, exports respectively air-blower control module and throttling arrangement control module to; Receive operational mode information, export external equipment to;
Air-blower control module, for receiving load capacity information, exports the rotation speed of fan control signal according to load capacity Information generation to indoor set;
Throttling arrangement control module, for receiving load capacity information, exports the control signal of damming according to load capacity Information generation to indoor set.
Preferably, described power board comprises: power module and filtration module, wherein,
Power module comprises: live wire end, common port and earth terminal, and live wire end and common port are connected to filtration module by cable respectively, earth terminal ground connection;
Filtration module, input is connected with power module, and output is connected with master board.
As seen from the above technical solution, a kind of indoor set load capacity control system that the utility model embodiment provides, by the master board being connected with indoor set, be set to polylith in parallel, the bearing load capacity that makes single indoor set is the load capacity summation that each master board load capacity in parallel dialing figure place represents.Like this, solve in parallel the restriction that master board load capacity dialing figure place is controlled indoor set load capacity, indoor set be may operate under the load capacity of upgrading, realize the load capacity dilatation of separate unit indoor set, without redesigning master board, effectively reduce the construction cycle.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described.Apparently, the accompanying drawing in below describing is only embodiment more of the present utility model, for those of ordinary skills, can also obtain according to these accompanying drawing illustrated embodiments other embodiment and accompanying drawing thereof.
Fig. 1 is existing indoor set load capacity control system structural representation.
Fig. 2 is the utility model embodiment indoor set load capacity control system structural representation.
Fig. 3 is the utility model embodiment indoor set load capacity control method schematic flow sheet.
The specific embodiment
Below with reference to accompanying drawing, the technical scheme of each embodiment of the utility model is carried out to clear, complete description, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are resulting all other embodiment under the prerequisite of not making creative work, all belong to the scope that the utility model is protected.
Existing multi-online air-conditioning system, the indoor set number of units connecting by line control machine is comparatively limited, and be subject to the restriction of master board load capacity dial-up figure place, cannot increase the operating load capacity of separate unit indoor set, i.e. the load capacity of separate unit indoor set operation is subject to the restriction of master board load capacity dial-up figure place.Thereby, when needs increase multi-online air-conditioning system total load, can only expand load capacity dial-up figure place, thereby can increase the operating load capacity of separate unit indoor set by redesigning master board, while making multi-online air-conditioning system upgrading, the construction cycle is longer.
In the utility model embodiment, consideration is under the prerequisite of the existing master board of not upgrading, by by the mode of existing multi host control plate parallel running, thereby effectively increase the bearing load of separate unit indoor set, make the load capacity of separate unit indoor set not limited by the figure place of existing master board load capacity dial-up, reach the object of the total load capacity of the single multi-online air-conditioning system of expansion, without new design master board, thereby can effectively reduce the construction cycle, make the multi-online air-conditioning system of the utility model embodiment go for the control of large number or a super large number indoor set.
Fig. 2 is the utility model embodiment indoor set load capacity control system structural representation.Referring to Fig. 2, this system comprises: indoor set, master board and power board, wherein,
Power board, is used to master board that work required voltage is provided;
Master board, is connected with indoor set, for according to the load capacity information of input, generates corresponding load capacity control signal, to indoor set, exports;
In the utility model embodiment, load capacity control signal comprises rotation speed of fan control signal and the control signal of damming.In the present embodiment, load capacity control signal represents with load capacity dialing figure place, for example, is the situation of 5 for indoor set load capacity, and load capacity dialing figure place is set to 4.For instance, with 0000 expression, shut down, 0001 represents that indoor set load capacity is 5/15, and 0010 represents that indoor set load capacity is 10/15, so analogizes.
About according to rotation speed of fan control signal corresponding to load capacity Information generation and the control signal of damming, take indoor set load is controlled as prior art, at this, omit detailed description.
Indoor set, for receiving the load capacity control signal of two above master board outputs, combine with a reference value of the load capacity dialing figure place setting in advance, obtain indoor set load capacity corresponding to each load capacity control signal, add up, indoor set load capacity is set in cumulative indoor set load capacity, and described two above master boards access indoor set with parallel way.
In the utility model embodiment, indoor set can be one or more, and an indoor set is connected with two above master boards.Indoor set also line control machine outside with is connected, or many indoor sets are connected with outside Centralized Controller.
In practical application, load capacity information be total load capacity information according to technical staff input, indoor set number of units and with the load capacity information of each indoor set, total load capacity is assigned to each indoor set, again according to the main control plate number being connected with each indoor set, the load capacity of distributing for each indoor set is dispensed to each connected master board, and by technical staff by extremely corresponding master board of the load capacity input information distributing for master board.
Total load capacity is assigned to each indoor set, can adopts the mode of load capacity equilibrium, total load capacity mean allocation is arrived to each indoor set; Also can the indoor set of choosing be operated in best load capacity considering, under the prerequisite of start operating cost, to choose indoor set, other indoor set of not choosing be in stopped status.Certainly, also can adopt alternate manner to distribute total load capacity, for example, take into account load balancing and start operating cost.
The load capacity of distributing for indoor set is dispensed to each connected master board, identical with the mode that total load capacity is assigned to each indoor set.For example, indoor set total load capacity is 20, the load capacity of distributing for indoor set is the situation of 10, if the master board number being connected with this indoor set is 4, the load capacity dialing figure place of each master board is 4, corresponding maximum indoor set load capacity is 5, can choose two master boards wherein, and is that every master board distributes the load capacity of 5.
In the utility model embodiment, by polylith master board, to indoor set, send load capacity control signal, indoor set, according to each load capacity control signal receiving, carries out accumulation process, according to cumulative load capacity, arranges.Like this, after the load capacity of indoor set is upgraded, can be by the mode of existing master board parallel connection, to indoor set output load capacity control signal in parallel, indoor set moves according to indoor set load capacity accumulated value corresponding to load capacity control signal, thereby indoor set be may operate within the scope of the load capacity of upgrading.
Wherein,
Power board comprises: power module and filtration module, wherein,
Power module, for accessing power supply, comprising: live wire end (L1), common port (N) and earth terminal (E1), and live wire end and common port are connected to filtration module by cable respectively;
Filtration module, for the voltage signal of input is carried out, after filtering processing, exporting master board to, for master board provides work required voltage.
Master board comprises: sensor control module, air-blower control module, throttling arrangement control module and communication module, be connected with indoor set respectively, and the communication module (not shown) that is also connected with external equipment, wherein,
Sensor control module, for receiving the temperature that is arranged on each sensor sensing on indoor set, determines the operational mode of indoor set and the indoor set load capacity of current operation, exports the information of determining to communication module;
In the utility model embodiment, each sensor being arranged on indoor set comprises: be arranged on indoor set return air inlet temperature sensor, be arranged on air outlet of indoor set temperature sensor, be arranged on the temperature sensor of indoor-unit cooling-medium liquid pipe and the temperature sensor that is arranged on indoor-unit cooling-medium tracheae.Like this, the temperature that sensor control module receives comprises: return air inlet temperature, air outlet temperature, cooling medium liquid pipe temperature and refrigerant tracheae temperature.
Preferably, each sensor on indoor set is connected to sensor control module by cable.Certainly, in practical application, also can be connected to sensor control module by communication.
About determining the operational mode of indoor set and the indoor set load capacity of current operation according to the temperature receiving, be known technology, at this, omit detailed description.
Communication module, for receiving the load capacity information of input and the current load capacity information of sensor control module output, exports respectively air-blower control module and throttling arrangement control module to; The indoor set running state information that receives operational mode information and obtain according to the information judgement of the state sensor output arranging on indoor set, exports external equipment to;
In the present embodiment, operational mode information comprises: refrigerating operaton status information and heating operation status information.Indoor set running state information refers to indoor set normal operation, break down or abnormal etc.About the information judgement indoor set state according to the state sensor output arranging on indoor set, be known technology, at this, omit detailed description.
In practical application, communication module also can export the current load capacity information of indoor set of sensor control module output to external equipment, for example, display, the current load capacity information of indoor set that technical staff shows according to display, determines whether to adjust indoor set load capacity.
Technical staff obtains operational mode information by external equipment, with the operational mode to indoor set, controls; By external equipment, obtain indoor set running state information, when indoor set running state information shows indoor set, occur operation troubles or when abnormal, can issue outage information to communication module, by communication module, control indoor set and shut down.
Air-blower control module, for according to the load capacity information receiving, generates corresponding rotation speed of fan control signal, exports the rotation speed of fan control signal of generation to indoor set, so that indoor set arranges the rotating speed of blower fan according to rotation speed of fan control signal; Poor according to the current load capacity of load capacity and the reception of storage, generates corresponding rotation speed of fan conditioning signal, so that indoor set is according to the rotating speed of rotation speed of fan conditioning signal adjusting blower fan;
In the utility model embodiment, air-blower control module, after receiving load capacity information, is stored this load capacity information, when receiving new load capacity information, replaces the load capacity information of storage by new load capacity information.
In the utility model embodiment, rotation speed of fan control signal can be distinguished by different signs from rotation speed of fan conditioning signal.Like this, indoor set is after receiving rotation speed of fan control signal, for example, 1001, combine with a reference value of load capacity dialing figure place, obtain indoor set load capacity information corresponding to rotation speed of fan control signal, the indoor set load capacity of inquiry storage and the mapping relations of rotation speed of fan, obtain rotation speed of fan corresponding to rotation speed of fan control signal, the rotation speed of fan that the rotation speed of fan of indoor set is set to obtain; After receiving rotation speed of fan conditioning signal, for example, 1001, wherein, on the occasion of expression, heighten, negative value represents to reduce, the rotation speed of fan conditioning signal of inquiry storage and the mapping relations of Fan Regulation rotating speed, obtain the Fan Regulation rotating speed that rotation speed of fan conditioning signal is corresponding, on the rotation speed of fan basis of existing operation, according to Fan Regulation rotating speed, heighten or reduce rotation speed of fan.
Throttling arrangement control module, be used for according to the control signal of damming corresponding to load capacity Information generation receiving, export the control signal of damming generating to indoor set, so that indoor set arranges the unlatching threshold degree of electric expansion valve on indoor-unit cooling-medium pipeline according to the control signal of damming; Poor according to the current load capacity of load capacity and the reception of storage, generates the corresponding conditioning signal that dams, so that indoor set is according to the aperture of the conditioning signal adjusting electric expansion valve that dams generating.
In the utility model embodiment, indoor set is according to the control signal of damming receiving, for example, 1001, combine with a reference value of load capacity dialing figure place, obtain indoor set load capacity information corresponding to the control signal of damming, the mapping relations that the indoor set load capacity of inquiry storage and electric expansion valve are opened threshold degree, obtain electric expansion valve corresponding to the control signal of damming and open threshold degree, according to the electric expansion valve obtaining, open the opening degree that threshold degree regulates electric expansion valve; Dam after conditioning signal receiving, for example, 1001, dam conditioning signal and the mapping relations of opening threshold value of inquiry storage, obtain the unlatching threshold value that the conditioning signal that dams is corresponding, on the basis of opening at existing electric expansion valve, according to the unlatching threshold value of obtaining, heighten or reduce the aperture of electric expansion valve.
In practical application, the rotation speed of fan conditioning signal generating and the conditioning signal that dams are after generating rotation speed of fan control signal and the control signal of damming, thereby, in above-described embodiment, as an optional embodiment, master board can only be carried out rotation speed of fan control signal and the functional sequence of the control signal of damming.
In the utility model embodiment, air-blower control module, according to the rotation speed of fan control signal receiving, is controlled the rotating speed of indoor set blower fan; Throttling arrangement control module, according to the control signal of damming receiving, is controlled the unlatching threshold degree of electric expansion valve on indoor set refrigerant pipe, thereby controls the cold medium flux of the refrigerant pipe of flowing through.Like this, by rotation speed of fan control signal and the control signal of damming, can control indoor set load, make the stack that the total load capacity of single indoor set is the indoor set load capacity of each connected master board control.That is to say, can to each master board being connected with indoor set, send instruction, each master board being connected with indoor set receives after instruction simultaneously, operation independent, and acting in conjunction, in the same indoor set with being connected, completes the control to the load capacity of this indoor set.Further, because multi-online air-conditioning system is subject to the restriction of bus capacity and the Centralized Controller interface upper limit, make multi-online air-conditioning system there is ceiling restriction to the indoor set number of units of access, limited the total load capacity of multi-online air-conditioning system, and by the technical scheme of the utility model embodiment, can effectively expand the total load capacity of multi-online air-conditioning system, but not increase the indoor set number of units of institute's traction in this multi-online air-conditioning system.Like this, within can realizing larger multi-online air-conditioning system being integrated in to a centralized control system, can save again and control and the cost of service equipment.
Fig. 3 is the utility model embodiment indoor set load capacity control method schematic flow sheet.Referring to Fig. 3, this flow process comprises:
Step 301, the master board being connected with indoor set with the power board that work required voltage is provided for master board respectively, receives the load capacity information of inputting;
Preferably, before receiving the load capacity information of input, the method further comprises:
According to the total load capacity information, indoor set number of units of input and with the load capacity information of each indoor set, total load capacity is assigned to each indoor set, again according to the main control plate number being connected with each indoor set, the load capacity that each indoor set is distributed is dispensed to each connected master board, and by master board corresponding to load capacity input information distributing for master board.
In this step, total load capacity is assigned to each indoor set and comprises:
Adopt the mode of load capacity equilibrium, total load capacity information mean allocation is arrived to each indoor set; Or,
Choose indoor set, the indoor set of choosing is operated in the best load capacity of setting, other indoor set of not choosing is in stopped status.
Step 302, according to load capacity control signal corresponding to load capacity Information generation receiving, exports to indoor set;
In this step, load capacity control signal comprises rotation speed of fan control signal and the control signal of damming.Preferably, load capacity control signal represents with load capacity dialing figure place.
According to load capacity control signal corresponding to load capacity Information generation receiving, comprise:
According to the load capacity information receiving, generate respectively corresponding rotation speed of fan control signal and the control signal of damming, export the rotation speed of fan control signal of generation and the control signal of damming to indoor set, so that indoor set arranges the rotating speed of blower fan according to rotation speed of fan control signal, and, the aperture of electric expansion valve on indoor-unit cooling-medium pipeline is set according to the control signal of damming.
Step 303, indoor set receives the load capacity control signal with two above master board outputs of parallel way access indoor set, combine with a reference value of the load capacity dialing figure place setting in advance, obtain indoor set load capacity corresponding to each load capacity control signal;
In this step, combine and refer to that a reference value by numerical value corresponding to load capacity control signal and load capacity dialing figure place multiplies each other.
Step 304, the indoor set load capacity that each load capacity control signal of obtaining is corresponding adds up, and indoor set load capacity is set to cumulative indoor set load capacity.
This step specifically comprises:
The indoor set load capacity that each rotation speed of fan control signal of obtaining is corresponding adds up, the indoor set load capacity of inquiry storage and the mapping relations of rotation speed of fan, obtain cumulative rotation speed of fan corresponding to indoor set load capacity, the rotation speed of fan that the rotation speed of fan of indoor set is set to obtain;
The indoor set load capacity that the control signal of respectively damming of obtaining is corresponding adds up, the mapping relations that the indoor set load capacity of inquiry storage and electric expansion valve are opened threshold degree, obtain electric expansion valve corresponding to cumulative indoor set load capacity and open threshold degree, the unlatching threshold degree that the electronic expansion valve opening of indoor set is set to obtain.
Preferably, in indoor set load capacity, be set to after cumulative indoor set load capacity, the method can further include:
Step 305, master board receives the temperature that is arranged on each sensor sensing on indoor set, determines the operational mode of indoor set and the indoor set load capacity of current operation, exports the operational mode information of indoor set to external equipment and shows;
In this step, the temperature of sensor sensing comprises: return air inlet temperature, air outlet temperature, cooling medium liquid pipe temperature and refrigerant tracheae temperature.
According to the temperature receiving, determine that the operational mode of indoor set and the indoor set load capacity of current operation are known technology, at this, omit detailed description.
Export the operational mode information of indoor set to external equipment and show, be for the ease of technical staff by external equipment, to obtain indoor set be in refrigerating state or heat state, with the operational mode to indoor set, controls.
Step 306, poor according to the load capacity of storage and the current load capacity of determining, generates corresponding rotation speed of fan conditioning signal and the conditioning signal that dams, and exports indoor set to;
In this step, master board can be monitored the load capacity of current indoor set operation, according to the load capacity of setting, the indoor set load capacity of current operation is controlled and is regulated.
Step 307, indoor set is according to the rotation speed of fan conditioning signal receiving, the rotation speed of fan conditioning signal of inquiry storage and the mapping relations of Fan Regulation rotating speed, obtain the Fan Regulation rotating speed that rotation speed of fan conditioning signal is corresponding, according to the Fan Regulation rotating speed obtaining, the rotation speed of fan of operation regulated;
In this step, if Fan Regulation rotating speed corresponding to rotation speed of fan conditioning signal is for heightening rotation speed of fan n1,, on the rotation speed of fan basis of current operation, rotation speed of fan is heightened to n1; If the Fan Regulation rotating speed that rotation speed of fan conditioning signal is corresponding is to reduce rotation speed of fan n2,, on the rotation speed of fan basis of current operation, rotation speed of fan is reduced to n2.
Step 308, indoor set is according to the conditioning signal that dams receiving, dam conditioning signal and the mapping relations of opening threshold value of inquiry storage, obtain the unlatching threshold value that the conditioning signal that dams is corresponding, according to the unlatching threshold value of obtaining, the aperture of the electric expansion valve of operation regulated.
Institute's step 307 that it should be noted that does not have dividing of sequencing with step 308, and step 308 can be carried out before step 307, also can carry out with step 307 simultaneously.
Preferably, after indoor set load capacity being adjusted in cumulative indoor set load capacity, the method can further include:
Master board receives the information of the state sensor output arranging on indoor set, and judgement obtains indoor set running state information, exports external equipment to.
In this step, indoor set running state information refers to indoor set normal operation, break down or abnormal etc.By exporting indoor set running state information to external equipment, show; to pass through external equipment for the ease of technical staff; monitoring indoor set state; when indoor set running state information shows that operation troubles appears in indoor set or when abnormal; can issue outage information to master board, by master board, control indoor set and shut down.
From above-mentioned, the indoor set load capacity control system of the utility model embodiment, by by the master board being connected with indoor set, be set to polylith master board in parallel, and be connected with indoor set, the bearing load capacity that makes single indoor set is the load capacity summation that each master board load capacity in parallel dialing figure place represents, thereby solve in parallel the restriction that master board load capacity dialing figure place is controlled indoor set load capacity, indoor set be may operate under the load capacity of upgrading, realize the load capacity dilatation of separate unit indoor set.Like this, do not increasing on the basis of the total number of units of indoor set, increase total operating load of multi-online air-conditioning system, make concentrated cold, warm control of large buildings become possibility, can complete the separate unit operation of large load capacity and super large load capacity indoor units is controlled, avoid redesigning master board, effectively reduce the construction cycle.Specifically, there is following useful technique effect:
1) can keep the mounting structure size constancy of multi-online air-conditioning system, save assembly space, save debugging and maintenance cost;
2) in the multi-online air-conditioning system of carrying same load capacity, can reduce dramatically the connection number of units of indoor set, thereby reduce the pipeline tie point in multi-online air-conditioning system, improve multi-online air-conditioning system reliability of operation;
3) avoid redesigning master board, effectively reduce the construction cycle.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model also comprises these changes and modification interior.
Claims (3)
1. an indoor set load capacity control system, is characterized in that, this system comprises: indoor set, master board and power board, wherein,
Power board, is connected with master board;
Master board, is connected with indoor set, for receiving the load capacity information of input, to indoor set, exports the corresponding load capacity control signal representing with load capacity dialing figure place according to load capacity Information generation;
Indoor set, for receiving the load capacity control signal of two above master board outputs, a reference value with the load capacity dialing figure place with setting in advance combines, obtain indoor set load capacity corresponding to each load capacity control signal, add up, indoor set load capacity is set in cumulative indoor set load capacity, and described two above master boards access indoor set with parallel way.
2. system according to claim 1, is characterized in that, described master board comprises: sensor control module, air-blower control module, throttling arrangement control module and communication module, be connected with indoor set respectively, communication module is also connected with external equipment, wherein
Sensor control module, for receiving the temperature that is arranged on each sensor sensing on indoor set, exports the operational mode information of determining to communication module;
Communication module, for receiving the load capacity information of input, exports respectively air-blower control module and throttling arrangement control module to; Receive operational mode information, export external equipment to;
Air-blower control module, for receiving load capacity information, exports the rotation speed of fan control signal according to load capacity Information generation to indoor set;
Throttling arrangement control module, for receiving load capacity information, exports the control signal of damming according to load capacity Information generation to indoor set.
3. system according to claim 2, is characterized in that, described power board comprises: power module and filtration module, wherein,
Power module comprises: live wire end, common port and earth terminal, and live wire end and common port are connected to filtration module by cable respectively, earth terminal ground connection;
Filtration module, input is connected with power module, and output is connected with master board.
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| CN201320415965.8U CN203413766U (en) | 2013-07-12 | 2013-07-12 | Indoor unit load capacity control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398447A (en) * | 2013-07-12 | 2013-11-20 | 青岛海信日立空调系统有限公司 | Indoor unit loading capacity control system and indoor unit loading capacity control method |
| CN106871346A (en) * | 2017-02-05 | 2017-06-20 | 广东美的暖通设备有限公司 | The communication means and device of multi-online air-conditioning system |
| CN111076374A (en) * | 2019-12-26 | 2020-04-28 | 海信集团有限公司 | Air conditioner communication method based on intelligent board and air conditioner |
-
2013
- 2013-07-12 CN CN201320415965.8U patent/CN203413766U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398447A (en) * | 2013-07-12 | 2013-11-20 | 青岛海信日立空调系统有限公司 | Indoor unit loading capacity control system and indoor unit loading capacity control method |
| CN103398447B (en) * | 2013-07-12 | 2015-08-05 | 青岛海信日立空调系统有限公司 | Indoor set load capacity control system and indoor set load capacity control method |
| CN106871346A (en) * | 2017-02-05 | 2017-06-20 | 广东美的暖通设备有限公司 | The communication means and device of multi-online air-conditioning system |
| CN106871346B (en) * | 2017-02-05 | 2019-07-19 | 广东美的暖通设备有限公司 | The communication means and device of multi-online air-conditioning system |
| CN111076374A (en) * | 2019-12-26 | 2020-04-28 | 海信集团有限公司 | Air conditioner communication method based on intelligent board and air conditioner |
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