CN206755376U - A kind of Combined frequency-change air-conditioning - Google Patents
A kind of Combined frequency-change air-conditioning Download PDFInfo
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- CN206755376U CN206755376U CN201720559369.5U CN201720559369U CN206755376U CN 206755376 U CN206755376 U CN 206755376U CN 201720559369 U CN201720559369 U CN 201720559369U CN 206755376 U CN206755376 U CN 206755376U
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Abstract
The utility model discloses a kind of Combined frequency-change air-conditioning, including indoor set, outdoor unit, the line control machine of indoor set connection, indoor set is provided with indoor heat converter, outdoor unit includes frequency-changeable compressor, four-way valve, outdoor heat converter, outdoor unit control module, the E ends of four-way valve connect with indoor heat converter, outdoor heat converter connects with indoor heat converter, it is connected on the pipeline between the E ends of four-way valve and indoor heat converter and is provided with the first stop valve, pressure sensor is provided between first stop valve and the E ends of four-way valve, pressure sensor is connected with outdoor unit control module, the return air temperature sensor being connected with outdoor unit control module is provided with the return air inlet of indoor set, line control machine is connected by communication transfer interface module with outdoor unit control module.This Combined frequency-change air-conditioning, without directly gathering the pressure of heat exchanger indoor unit, outdoor unit control module can be calculated accordingly by the pressure of outdoor machine of air-conditioner system and VFC.
Description
Technical field
The utility model belongs to air-conditioning technical field, is to be related to a kind of Combined frequency-change air-conditioning specifically.
Background technology
With the economic development and improvement of living standards, people are empty to there is the frequency conversion of more preferable comfort conditioning and energy saving
Device is adjusted to have higher demand.Some users for being already equipped with fixed frequency air conditioner, for purchase machine cost or household internal finishing etc.
The consideration of some other factorses, they are not intended to change indoor set part, particularly with hiding or Embedded indoor apparatus of air conditioner,
It is quite big such as to dismantle indoor set quantities, and the fitting structure in destructible room, therefore they wish only to have replaced outdoor unit both
The effect of transducer air conditioning is can reach, and traditional convertible frequency air-conditioner is due to the inside and outside machine Communication Control logic of different brands type
The parameter such as difference, the coil temperature of interior machine testing, return air temperature can not be communicated to outdoor unit and be handled, thus it is different it is interior,
It is difficult to realize and interconnects between outer machine.In addition, for such as air handler systems, it is mainly used in transferring air, indoor set
Function it is more single, will not typically configure the detecting elements such as coil temperature sensor, pressure sensor, and such parameter for
The control of the outer machine of frequency conversion is even more important, and based on this, how to invent a kind of Combined frequency-change air-conditioning, can will determine machine and frequency conversion in frequency
The function of convertible frequency air-conditioner is realized in outer machine combination, is the main technical problems to be solved of the utility model.
The content of the invention
The utility model in order to solve the indoor set of some existing fixed frequency air conditioner indoor sets or some specific models due to
Self reason is simultaneously not provided with sensor electronics, can not meet the control parameter demand of convertible frequency air-conditioner, and can not realize with
The outdoor unit communication of different model different manufacturers, and then can not realize and be combined work with machine outside the frequency conversion of in the market circulation
Technical problem, it is proposed that a kind of Combined frequency-change air-conditioning, can solve the above problems.
In order to solve the above-mentioned technical problem, the utility model is achieved using following technical scheme：
A kind of Combined frequency-change air-conditioning, including indoor set, outdoor unit, the line control machine being connected with the indoor set, the room
Interior machine is provided with indoor heat converter, and the outdoor unit includes frequency-changeable compressor, four-way valve, outdoor heat converter, outdoor unit control
Molding block, the suction end of the frequency-changeable compressor connect with the S ends of the four-way valve, the exhaust end of the frequency-changeable compressor and institute
State the D ends connection of four-way valve, the E ends of the four-way valve connect with the indoor heat converter, the C-terminal of the four-way valve with it is described
Outdoor heat converter connects, and the outdoor heat converter connects with the indoor heat converter, is connected to the E ends of the four-way valve
The first stop valve, the E of first stop valve and the four-way valve are provided with pipeline between the indoor heat converter
Pressure sensor is provided between end, the pressure sensor is connected with the outdoor unit control module, and the indoor set returns
Return air temperature sensor is provided with air port, the return air temperature sensor is connected with the outdoor unit control module, the line
Control device is connected by communication transfer interface module with the outdoor unit control module.
Further, the outdoor unit control module is also associated with toggle switch.
Further, the toggle switch includes two gears, can form 4 states, one steaming of each status representative
Temperature corrected value is sent out, described two gears are connected with two pins of the outdoor unit control module respectively.
Further, first stop valve and pressure sensor are arranged in the pipeline of the outdoor unit side.
Further, it is connected in the pipeline between the outdoor heat converter and indoor heat converter and is respectively arranged with
Two stop valves and electric expansion valve.
Further, second stop valve and electric expansion valve are arranged in the pipeline of the outdoor unit side.
Further, the outdoor unit control module is connected with the VFC mould for controlling the frequency-changeable compressor
Block.
Compared with prior art, the advantages of the utility model and good effect is：Combined frequency-change of the present utility model is empty
Adjust, by being provided with pressure sensor between the first stop valve and the E ends of four-way valve, the pressure for machine system outside testing air conditioner
Power, and the pressure of the outdoor machine of air-conditioner system can embody the system pressure of heat exchanger indoor unit indirectly, it is therefore not necessary to directly gather
The pressure of heat exchanger indoor unit, outdoor unit control module by the pressure of outdoor machine of air-conditioner system can carry out it is corresponding calculate with
And VFC, solve the indoor set of current fixed frequency air conditioner indoor set or some specific models because self reason is not set
Sensor electronics are put, the control parameter demand of convertible frequency air-conditioner can not be met, and can not be realized and different model difference factory
The outdoor unit communication of family, and then the technical problem that work is combined with machine outside the frequency conversion of in the market circulation can not be realized.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantage of the present utility model
It will become clearer.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of embodiment systematic schematic diagram for the Combined frequency-change air-conditioning that the utility model is proposed；
Fig. 2 is a kind of embodiment circuit block diagram for the Combined frequency-change air-conditioning that the utility model is proposed；
Fig. 3 be the Combined frequency-change air-conditioning that the utility model is proposed a kind of embodiment in toggle switch schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment one
For some fixed frequency air conditioners or such as indoor set of air handler air handling systems, due to its initial designs
When functional requirement determine indoor set and be installation such as a series of electronics such as coil temperature sensor, coil pipe pressure sensor
Device is detected, is on the one hand due to different type of machines different manufacturers therefore, it is impossible to be applied in combination with existing external convertible frequency air conditioner
Control module design difference causes internal-external machine not communicate, and still further aspect is former due to the manufacturing of all indoor sets described above
Cause, the control parameter for meeting that frequency conversion outdoor unit is carried out needed for VFC can not be provided, and then caused above-mentioned for being already equipped with
, it is necessary to by all replacings of indoor set, outdoor unit when the user of air-conditioning internal machine has convertible frequency air-conditioner functional requirement, Cost Problems are brought
And dismounting problem, based on this background, the present embodiment proposes a kind of Combined frequency-change air-conditioning, as shown in Figure 1 and Figure 2, including room
Interior machine, outdoor unit, the line control machine being connected with indoor set, indoor set are provided with indoor heat converter 11, and outdoor unit includes frequency conversion pressure
Contracting machine 12, four-way valve 13, outdoor heat converter 14, outdoor unit control module（Not shown in figure）, the air-breathing of frequency-changeable compressor 12
End connects with the S ends of the four-way valve 13, and the exhaust end of frequency-changeable compressor 12 connects with the D ends of four-way valve 13, the E of four-way valve 13
End connects with indoor heat converter 11, and the C-terminal of four-way valve 13 connects with outdoor heat converter 14, outdoor heat converter 14 and interior
Heat exchanger 11 connects, and is connected on the pipeline between the E ends of four-way valve 13 and indoor heat converter 11 and is provided with the first cut-off
Valve 15, pressure sensor 16, pressure sensor 16 and outdoor unit control are provided between the first stop valve 15 and the E ends of four-way valve 13
Molding block is connected, and return air temperature sensor 17, return air temperature sensor 17 and outdoor unit control are provided with the return air inlet of indoor set
Molding block is connected, and line control machine is connected by communication transfer interface module with outdoor unit control module.The principle of this Combined frequency-change air-conditioning
It is：Due to being not provided with the detection device of detection plate pipe pressure in the coil pipe of indoor set, this programme by the first stop valve with
Set pressure-detecting device to be used for the pressure of the outer machine system of testing air conditioner between the E ends of four-way valve, and the outer machine pressure can between
The system pressure of the existing heat exchanger indoor unit of junctor, it is therefore not necessary to directly gather the pressure of heat exchanger indoor unit, outdoor unit control
Molding block can be calculated accordingly by the pressure of outdoor machine of air-conditioner system and VFC, and air-conditioning system is reliable
Property protection.For some line control machines, its system voltage is 24V DC voltages, the frequency-variable air conditioner outdoor machine control module with routine
System voltage mismatch, therefore will between line control machine and outdoor unit control module by connect a communication transfer interface module be turned
Change, realize the communication of line control machine and outdoor unit control module, line control machine sends user's design temperature of collection to outdoor unit
Control module, corresponding VFC is performed by outdoor unit control module.This air conditioner can realize fixed frequency air conditioner indoor set or
Communication and parameter acquiring between the indoor set and frequency-variable air conditioner outdoor machine of person such as air handler air handling systems are asked
Topic, user need to only change the function that convertible frequency air-conditioner can be achieved in outdoor unit, can be greatly cost-effective and indoor without dismounting
Machine, bring great advantage to the user.
It should be noted that by detecting the pressure of outdoor machine of air-conditioner system in this method, and the outer machine pressure can be indirect
The system pressure of heat exchanger indoor unit is embodied, corresponding saturation temperature value is calculated by the pressure value, for air-conditioning system
Frequency converter.System pressure of the corresponding control method with existing convertible frequency air-conditioner according to the heat exchanger indoor unit directly obtained
The computational methods or control method of power are identical, and this air conditioner does not change to the computational methods or control method of convertible frequency air-conditioner
Enter, the creativeness of this air conditioner is also not rely on the improvement realization of software, the pressure of outdoor machine of air-conditioner system such as in refrigerating operaton
Power embodies the evaporating pressure of indoor heat exchanger, and vapor pres- sure force value calculates corresponding saturation temperature value by outer machine control software,
It is less than 0 degree for the anti-freeze temperature protection of system, such as temperature value（EE）Cumulative time reaches 3 minutes（EE）, then outdoor pressure
Contracting machine, outer blower fan are out of service, transfer wind operating, prevent temperature further too low freezing indoor heat exchanger coil pipe or evaporating pressure
The too low normal operation range beyond compressor, if stopping press 9 minutes（EE）Afterwards and temperature value corresponding to the pressure rises to 10
℃（EE）Shi Huifu refrigerating operatons, press, outer blower fan put into operation again；In heating operation, the pressure can embody interior and change again
The condensing pressure of hot device, similarly condensing pressure value by outer machine control software calculate corresponding to saturation temperature value, for heating
Antioverloading temperature protection during operation, as compressor start the heating operation time meet be more than 3 minutes (EE), if the temperature> 53
Degree（EE）, then outdoor fan be transferred to low speed, 50 degree of temperature ＜（EE）When outer blower fan recover to run at high speed, if the temperature>56 degree
（EE）, then outer blower fan is out of service, 53 degree of temperature ＜（EE）Then outer blower fan recovers low-speed running；If the temperature is more than 65 degree
(EE), then outdoor hair compressor shuts down signal；After press is out of service, if detecting, the temperature is less than 46 DEG C（EE）And press
When machine is shut down more than 3 minutes (EE), then outer machine control software hair press ON signal, press recover to run well.Come successively
The condensation temperature of orderly control system, prevents temperature or pressure from exceeding compressor normal operation range, protects the normal of compressor
Operating.
The realization of this method is to embody the pressure of interior machine heat-exchange system indirectly by detecting the pressure of outer machine system, and by
Certain pressure loss can be produced by air conditioner connecting pipe in refrigerant, causes temperature spot to slightly have difference, therefore in actual motion control
The temperature spot is corrected according to connection length of tube when processed, therefore, the preferred outdoor unit control module of the present embodiment is also connected with
There is toggle switch, as shown in figure 3, toggle switch includes two gears in the present embodiment, 4 states, each state can be formed
An evaporating temperature correction value is represented, described two gears are connected with two pins of the outdoor unit control module respectively.
During installation, the online length of tube of measurement indoor set to outdoor unit, and dial-up is set before upper electricity according to the length, different length is adopted
Marked with different dial-ups, outdoor unit control module will be subject to when actual motion controls according to connection length of tube to the temperature spot
Amendment, such as：
General length：Online length of tube≤the 30m of 10m ＜；
Short pipe arrangement：Online length of tube≤10m；
Compared with Super long tube：Online length of tube≤the 50m of 30m ＜；
Overlength pipe arrangement：Online length of tube ＞ 50m.
Another technical problem that the air conditioner of the present embodiment need to solve is exactly the FREQUENCY CONTROL problem of compressor, and frequency conversion is compressed
The frequency of machine is temperature difference size by detecting return air temperature and actual setting temperature and difference variation situation to carry out logic
Control, popular understanding is exactly that then high frequency is run the big compressor of the temperature difference, the small then low-frequency operation of the temperature difference.The present embodiment is by increasing room
Interior return air temperature detection means directly will contact to outdoor control panel with indoor return air temperature-detecting device, external control of having family
This temperature value of processing procedure ordered pair is handled, and efficiently solves the problems, such as differential thermal calculation, realizes the free control to compressor frequency
System.In VFC, outdoor unit control module is connected with the VFC module for controlling the frequency-changeable compressor, is used for
Realize VFC.
In actual use, present apparatus acquiescence indoor set has been fixed, and user need to only change outdoor unit, because
This, only need to specially produce the frequency conversion outdoor unit to match, therefore, the first stop valve 15 and pressure sensor 16 are set in place
In in the pipeline of the outdoor unit side.
Be connected in the pipeline between outdoor heat converter and indoor heat converter be respectively arranged with the second stop valve 18 and
Electric expansion valve 19.Similarly, the second stop valve 18 and electric expansion valve 19 are arranged in the pipeline of the outdoor unit side
It is interior.
Certainly, it is to be also not limited to the example above to limitation of the present utility model, the utility model that described above, which is not,
The variations, modifications, additions or substitutions that those skilled in the art are made in essential scope of the present utility model,
Also the scope of protection of the utility model should be belonged to.
Claims (7)
1. a kind of Combined frequency-change air-conditioning, including indoor set, outdoor unit, the line control machine being connected with the indoor set, the interior
Machine is provided with indoor heat converter, it is characterised in that：The outdoor unit include frequency-changeable compressor, four-way valve, outdoor heat converter,
Outdoor unit control module, the suction end of the frequency-changeable compressor connect with the S ends of the four-way valve, the row of the frequency-changeable compressor
Gas end connects with the D ends of the four-way valve, and the E ends of the four-way valve connect with the indoor heat converter, the C of the four-way valve
End connects with the outdoor heat converter, and the outdoor heat converter connects with the indoor heat converter, is connected to described four
Be provided with the first stop valve on pipeline between the E ends of port valve and the indoor heat converter, first stop valve with it is described
Pressure sensor is provided between the E ends of four-way valve, the pressure sensor is connected with the outdoor unit control module, the room
Return air temperature sensor is provided with the return air inlet of interior machine, the return air temperature sensor connects with the outdoor unit control module
Connect, the line control machine is connected by communication transfer interface module with the outdoor unit control module.
2. Combined frequency-change air-conditioning according to claim 1, it is characterised in that：The outdoor unit control module is also associated with
Toggle switch.
3. Combined frequency-change air-conditioning according to claim 2, it is characterised in that：The toggle switch includes two gears,
4 states can be formed, one evaporating temperature correction value of each status representative, described two gears respectively with the outdoor unit control
Two pins connection of molding block.
4. Combined frequency-change air-conditioning according to claim 1, it is characterised in that：First stop valve and pressure sensor
It is arranged in the pipeline of the outdoor unit side.
5. according to the Combined frequency-change air-conditioning described in claim any one of 1-4, it is characterised in that：The outdoor heat is connected to hand over
The second stop valve and electric expansion valve are respectively arranged with pipeline between parallel operation and indoor heat converter.
6. Combined frequency-change air-conditioning according to claim 5, it is characterised in that：Second stop valve and electric expansion valve
It is arranged in the pipeline of the outdoor unit side.
7. according to the Combined frequency-change air-conditioning described in claim any one of 1-4, it is characterised in that：The outdoor unit control module
It is connected with the VFC module for controlling the frequency-changeable compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559369.5U CN206755376U (en) | 2017-05-19 | 2017-05-19 | A kind of Combined frequency-change air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559369.5U CN206755376U (en) | 2017-05-19 | 2017-05-19 | A kind of Combined frequency-change air-conditioning |
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| CN206755376U true CN206755376U (en) | 2017-12-15 |
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| CN201720559369.5U Active CN206755376U (en) | 2017-05-19 | 2017-05-19 | A kind of Combined frequency-change air-conditioning |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255306A (en) * | 2017-05-19 | 2017-10-17 | 海信（山东）空调有限公司 | A kind of Combined frequency-change air-conditioning and its control method |
| CN108870701A (en) * | 2018-08-22 | 2018-11-23 | 宁波奥克斯电气股份有限公司 | A kind of multi-online air-conditioning system and pressure detection method |
| CN112556131A (en) * | 2020-12-15 | 2021-03-26 | 佛山市顺德区美的电子科技有限公司 | Switching control panel for air conditioning system, air conditioning system and self-adaptive control method |
-
2017
- 2017-05-19 CN CN201720559369.5U patent/CN206755376U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255306A (en) * | 2017-05-19 | 2017-10-17 | 海信（山东）空调有限公司 | A kind of Combined frequency-change air-conditioning and its control method |
| CN107255306B (en) * | 2017-05-19 | 2023-02-17 | 海信空调有限公司 | Combined variable frequency air conditioner and control method thereof |
| CN108870701A (en) * | 2018-08-22 | 2018-11-23 | 宁波奥克斯电气股份有限公司 | A kind of multi-online air-conditioning system and pressure detection method |
| CN112556131A (en) * | 2020-12-15 | 2021-03-26 | 佛山市顺德区美的电子科技有限公司 | Switching control panel for air conditioning system, air conditioning system and self-adaptive control method |
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