CN206269319U - Solve the device of air-conditioning heating overload - Google Patents
Solve the device of air-conditioning heating overload Download PDFInfo
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- CN206269319U CN206269319U CN201621364518.4U CN201621364518U CN206269319U CN 206269319 U CN206269319 U CN 206269319U CN 201621364518 U CN201621364518 U CN 201621364518U CN 206269319 U CN206269319 U CN 206269319U
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- air
- pressure switch
- pressure
- blower fan
- control device
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Abstract
The utility model is related to solve the device of air-conditioning heating overload, and the utility model solves the problems, such as that air-conditioning occurs heating overload under high temperature heating condition, proposes a kind of device for solving air-conditioning heating overload, and its technical scheme is：Including four-way valve, interior machine heat exchanger, outer blower fan contactor and outer Electrical Control device, it is characterized in that, also include pressure switch, the pressure switch is placed between four-way valve and interior machine heat exchanger, pressure switch one end connects outer Electrical Control device, the other end connects outer blower fan contactor, and outer blower fan contactor connects outer Electrical Control device.Wherein, pressure switch can be according to the high pressure requirement of specific system; setting protection pressure value; pressure switch can automatically reset, and reset pressure, less than protection pressure, the beneficial effects of the utility model are; the air-conditioner set without nonshared control unit can be made; possess self-contr ol, the protective capability when worst hot case is heated so that unit can the safe operation under this operating mode, it is adaptable to nonstandard air-conditioning equipment.
Description
Technical field
The utility model is related to air-conditioning overload protection technology, more particularly to solves air-conditioning heating overload technology.
Background technology
At present, the use of air-conditioning is more and more universal, particularly commercial, industrial air-conditioning etc., nonstandard customization class product shape
Formula is more and more, part air-conditioner set, and the electricity of air-conditioner set need to be only can be used as using the easy general purpose controller such as temperature controller
Control part.These controllers, do not possess judgement, defencive function under particular service requirement to air-conditioning, as high temperature is heated again
Under applying working condition, air-conditioner set is easy to occur to heat overload situations, such as unit long-play, will not only directly affect unit
Life-span, or even also can result in the catastrophe failures such as unit appearance damage compressor.
Utility model content
The purpose of this utility model is to propose a kind of device for solving air-conditioning heating overload, makes it to add accordingly
Can solve the problems, such as that air-conditioning occurs heating overload under high temperature heating condition after software approach.
The utility model solves its technical problem, and the technical scheme of use is：The device of air-conditioning heating overload is solved, including
Four-way valve, interior machine heat exchanger, outer blower fan contactor and outer Electrical Control device, it is characterised in that also including pressure switch, the pressure
Power switch is placed between four-way valve and interior machine heat exchanger, and pressure switch one end connects outer Electrical Control device, other end connection exogenous wind
Machine contactor, outer blower fan contactor connects outer Electrical Control device.
It is further that the pressure switch is open type.
It is further that the reset pressure value of the pressure switch is than low 0.4MPa to the 0.7MPa of protection pressure value.
It is further that the outer Electrical Control device includes control line and accessory power supply.
The beneficial effects of the utility model are that the device overloaded by above-mentioned solution air-conditioning heating is corresponding applying
After software approach, the air-conditioner set without nonshared control unit can be made, possess self-contr ol, protection energy when worst hot case is heated
Power so that unit can the safe operation under this operating mode, it is to avoid air-conditioning long-play in the case where overload situations are heated, influences unit
Service life, or even cause the problem of unit damage.
Brief description of the drawings
Fig. 1 is the structured flowchart of the device that the utility model solves air-conditioning heating overload.
Fig. 2 is the structured flowchart of air-conditioning system when air-conditioning is in refrigerating state.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment, the technical solution of the utility model is described in detail.
It is described in the utility model solve air-conditioning heating overload device by four-way valve, interior machine heat exchanger, outer blower fan contactor,
Outer Electrical Control device and pressure switch are constituted, wherein, pressure switch is placed between four-way valve and interior machine heat exchanger, pressure switch one
The outer Electrical Control device of end connection, the other end connects outer blower fan contactor, and outer blower fan contactor connects outer Electrical Control device, its system
Structured flowchart is referring to Fig. 1.Here, pressure switch is open type, i.e., normal when using, the system pressure for detecting not up to pressure
When switching the pressure value of setting, the control line of pressure switch is the state of connection, when the pressure for detecting sets more than pressure switch
During fixed pressure value, pressure switch control line is off-state.Pressure switch has automatically reset function, when the pressure for detecting
Power is reduced to after a pressure value, and pressure switch control line is changed into the state of connection again.
Embodiment one
The utility model embodiment one is the device that single compressor system solves air-conditioning heating overload, including four-way valve, interior
Machine heat exchanger, outer blower fan contactor, outer Electrical Control device and pressure switch, wherein pressure switch are placed in four-way valve and interior machine heat is changed
Between device, pressure switch one end connects outer Electrical Control device, and the other end connects outer blower fan contactor, and outer blower fan contactor connection is outer
Electrical Control device.In said apparatus, pressure switch is open type；The reset pressure value of pressure switch is lower than protection pressure value
0.4MPa to 0.7MPa；Outer Electrical Control device includes control line and accessory power supply.
In practical application, on the basis of corresponding software method is added, the solution air-conditioning system of new proposition is used using this
The device of thermal overload, can reach following effect：
When air-conditioner set is in heats state, the rising that the delivery temperature of air-conditioning system, pressure can be progressively, unit will be located
Heated in hot environment, at this moment four-way valve will substantially rise to the channel interior pressure between interior machine heat exchanger, and progressively surpass
Cross the pressure value of machine set system permission.
The pressure switch of setting is when detecting system pressure value reaches protection pressure value, and it is dynamic that pressure switch can perform protection
Make, the control line of opening pressure switch, now the loop of outer Electrical Control line, outer blower fan relay and pressure switch composition is in disconnected
Open state, thus outer blower fan relay no current passes through, and outdoor machine of air-conditioner blower fan is caused because power-off shuts down, so as to be greatly reduced
The heat exchange amount of outdoor unit, the operating pressure of air-conditioning system will be gradually reduced, and wherein four-way valve is to the pipe between interior machine heat exchanger
Road pressure will also be gradually reduced, therefore, it is to avoid the problem that compressor works under high-pressure state；If air-conditioning system pressure
It is lasting to reduce, when the pressure on four-way valve to pipeline between indoor set heat exchanger is less than the reset values of pressure switch, pressure switch
Control line will be connected, and pressure switch exits guard mode, and now outer Electrical Control line, outer blower fan relay and pressure switch are constituted
Loop is in the conduction state, thus outer blower fan relay has electric current to pass through, and makes outer machine blower fan recover to start, outer machine heat exchanger heat exchange
Ability strengthens, and system running pressure starts to be stepped up again.Circular flow in this way, just realizes compressor all the time at one
The purpose worked under reliable system pressure scope, unit is able to continuous service, it is to avoid the problem of disorderly closedown.
Embodiment two
The utility model embodiment two is the device that multi-compressor system solves air-conditioning heating overload, i.e., multiple outer blower fans are total to
With, a pressure switch can be equally set on each compressor assembly, this example is two compressor assemblies, need to be by two only
The pressure switch of system is cascaded, and its device for solving air-conditioning heating overload includes four-way valve, interior machine heat exchanger, system
One outer blower fan contactor, the outer blower fan contactor of system two, outer Electrical Control device and two pressure switches, the wherein pressure of system one
Switch is placed between four-way valve and interior machine heat exchanger, and pressure switch one end connects outer Electrical Control device, and the other end connects outer blower fan
Contactor, outer blower fan contactor connects outer Electrical Control device.In said apparatus, each pressure switch is open type；Each pressure is opened
The reset pressure value of pass low 0.4MPa to the 0.7MPa of protection pressure value all more corresponding than its；Outer Electrical Control device includes control line
And accessory power supply.
During normal use, when air-conditioner set is in heats state, the delivery temperature of each compressor assembly of air-conditioning,
Pressure can be progressively rising, unit will heat in hot environment, at this moment in each system four-way valve between interior machine heat exchanger
Channel interior pressure will substantially rise, and progressively exceed machine set system allow pressure value.Now adding corresponding software side
On the basis of method, using this using the device that air-conditioning heating overloads that solves of new proposition, can reach as described in embodiment one
Effect.
When air-conditioner set carries out refrigerating operaton, four-way valve will commutate, now, the pipeline of four-way valve to indoor heat exchanger,
It is the air entry for being communicates directly to compressor, is constantly in low-pressure state, it is impossible to triggers pressure switch action, pressure switch
Control line is in connected state all the time, therefore, during refrigerating operaton, it is dynamic that above-mentioned pressure switch will not occur protection
Make, its structured flowchart is referring to Fig. 2.
Visible according to embodiment one and embodiment two, the software approach of above-mentioned application or addition is prior art, herein
No longer describe in detail.
Claims (4)
1. the device of air-conditioning heating overload is solved, and its technical scheme is：Including four-way valve, interior machine heat exchanger, outer blower fan contactor
With outer Electrical Control device, it is characterised in that also including pressure switch, the pressure switch be placed in four-way valve and interior machine heat exchanger it
Between, pressure switch one end connects outer Electrical Control device, and the other end connects outer blower fan contactor, and outer blower fan contactor connection is outer electromechanical
Control device.
2. it is according to claim 1 to solve the device that air-conditioning heating overloads, it is characterised in that the pressure switch is normally opened
Type.
3. it is according to claim 2 to solve the device that air-conditioning heating overloads, it is characterised in that the reset of the pressure switch
Pressure value is than low 0.4MPa to the 0.7MPa of protection pressure value.
4. it is according to claim 1 to solve the device that air-conditioning heating overloads, it is characterised in that the outer Electrical Control device bag
Include control line and accessory power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364518.4U CN206269319U (en) | 2016-12-13 | 2016-12-13 | Solve the device of air-conditioning heating overload |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621364518.4U CN206269319U (en) | 2016-12-13 | 2016-12-13 | Solve the device of air-conditioning heating overload |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206269319U true CN206269319U (en) | 2017-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621364518.4U Active CN206269319U (en) | 2016-12-13 | 2016-12-13 | Solve the device of air-conditioning heating overload |
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| Country | Link |
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| CN (1) | CN206269319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442491A (en) * | 2020-04-10 | 2020-07-24 | 广东美的制冷设备有限公司 | Air conditioner, control method and control device thereof, and computer readable storage medium |
-
2016
- 2016-12-13 CN CN201621364518.4U patent/CN206269319U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442491A (en) * | 2020-04-10 | 2020-07-24 | 广东美的制冷设备有限公司 | Air conditioner, control method and control device thereof, and computer readable storage medium |
| CN111442491B (en) * | 2020-04-10 | 2022-04-01 | 广东美的制冷设备有限公司 | Air conditioner, control method and control device thereof, and computer readable storage medium |
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