CN208332590U - A kind of multi-connected machine outdoor unit defrosting control system - Google Patents
A kind of multi-connected machine outdoor unit defrosting control system Download PDFInfo
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- CN208332590U CN208332590U CN201820474464.XU CN201820474464U CN208332590U CN 208332590 U CN208332590 U CN 208332590U CN 201820474464 U CN201820474464 U CN 201820474464U CN 208332590 U CN208332590 U CN 208332590U
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- defrosting
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Abstract
The utility model discloses a kind of multi-connected machine outdoor unit defrosting control systems, imaging sensor including being set to multi-connected machine outdoor unit unit fin surface, imaging sensor is connected with defrosting controller by imaging signal transmission line, and defrosting controller is connected to by the control line that defrosts except defrosting system；Multi-connected machine outdoor unit unit fin surface frosting information is sent to defrosting controller for obtaining multi-connected machine outdoor unit unit fin surface frosting image information by imaging sensor；Defrosting processing can be carried out, can be defrosted in time once reaching preset threshold using imaging sensor acquisition image, defrosting effect is good, improves building comfort, economic and reliable, operation is rationally, it is easy for installation, image is acquired using imaging sensor, once reach preset threshold, defrosting processing can be carried out, can be defrosted in time, defrosting effect is good, building comfort is improved, using automatic control, cold snap is not necessarily to personal management, economic and reliable, operation are rationally, easy for installation.
Description
Technical field
The utility model belongs to building equipment energy saving research field, and in particular to a kind of multi-connected machine outdoor unit defrosting control
System.
Background technique
The defrosting investigative technique of air source heat pump system and multi-online air-conditioning system outdoor unit is rich and varied, defrosting control
Method processed is also very more, and concretely, common defrosting control method has time defrosting control methods, the defrosting control of one time of temperature
Method, self-correction defrosting control methods, air pressure difference defrosting control methods, more than the ten kinds of defrostings controls such as Maximum average heating capacity defrosting control methods
Method processed；Fuzzy intelligentcontrol defrosting；Refrigerant superheat degree defrosting control methods；Blower electric current and evaporating temperature, which jointly control, to be removed
White method；The defrosting control methods that comprehensive frosting index (FI) is judged；Indoor and outdoor dual sensor defrosting control methods；The temperature difference is removed
White control methods；One time of temperature difference defrosting control methods；
By actual observation and test, researcher is frequently found above-mentioned defrosting control method and often goes out during use
The phenomenon that existing " accidentally defrosting ", analysis reason discovery is mainly by the following:
1) lack full cognizance and the monitoring to Frost formation process, cause uncertain defrosting；
2) to the one-sided in frosting region, defrosting is caused to be not thorough；
3) ignore heat exchanger drainage problem；
4) operating condition is paid attention to insufficient；
Therefore, it can accurately defrost under low temperature and high relative humidity operating condition to reach multi-connected machine outdoor unit in winter, we just need
Accomplish that developmental research reliably defrosts control technology.
Utility model content
The purpose of this utility model is to provide a kind of multi-connected machine outdoor unit defrosting control systems, to overcome the prior art
It is insufficient.
In order to achieve the above objectives, the utility model adopts the following technical solution:
A kind of multi-connected machine outdoor unit defrosting control system, the imaging including being set to multi-connected machine outdoor unit unit fin surface
Sensor, imaging sensor are connected with defrosting controller by imaging signal transmission line, and defrosting controller passes through defrosting control line
It is connected to except defrosting system；
Imaging sensor is used to obtain multi-connected machine outdoor unit unit fin surface frosting image information, and will be outside multi-connected machine room
Machine unit fin surface frosting information is sent to defrosting controller；
Defrosting controller be used for receive imaging sensor transmitting fin surface frosting image information, and with defrosting controller
The preset threshold of storage unit compares, if being more than preset threshold, the control of defrosting controller carries out defrosting processing except defrosting system, otherwise
It is handled without defrosting.
Further, defrosting controller is uniformly arranged in unit fin surface.
Further, except defrosting system is air-conditioning itself except defrosting system or physical heating remove defrosting system.
Further, it is distributed except defrosting system using Multipoint Uniform.
Further, imaging sensor is cmos image sensor.
Further, storage unit is equipped in defrosting controller
Compared with prior art, the utility model has technical effect beneficial below:
A kind of multi-connected machine outdoor unit defrosting control system of the utility model, including it is set to multi-connected machine outdoor unit unit fin
The imaging sensor on surface, imaging sensor are connected with defrosting controller by imaging signal transmission line, and defrosting controller passes through
Defrosting control line is connected to except defrosting system；Imaging sensor is for obtaining multi-connected machine outdoor unit unit fin surface frosting image letter
Breath, and multi-connected machine outdoor unit unit fin surface frosting information is sent to defrosting controller；Defrost controller for receive at
It is compared as the fin surface frosting image information of sensor passes, and with the preset threshold of defrosting controller storage unit, if super
Preset threshold is crossed, the control of defrosting controller carries out defrosting processing except defrosting system, otherwise handles without defrosting, and structure is simple, benefit
Defrosting processing can be carried out, can be defrosted in time once being reached preset threshold with imaging sensor acquisition image, defrosting effect
It is good, building comfort is improved, economic and reliable, operation is rationally, easy for installation, image is acquired using imaging sensor, once it reaches
To preset threshold, defrosting processing can be carried out, can be defrosted in time, defrosting effect is good, building comfort is improved, using automatic
Control, cold snap are not necessarily to personal management, and economic and reliable, operation is reasonable, easy for installation.By image perception, accurate recording is more
Online outdoor unit fin frosting state, frosting thickness, frosting distribution, the size of frosting degree, to carry out sentencing for defrosting control point
It is disconnected；Defrosting control point is accurate, when the frosting of image perception to unit fin surface reaches frosting thickness or the frosting of program setting
When amount, unit begins to defrost, and can occur " accidentally removing for " frostless defrosting " or " having frost not remove " to avoid unit in this way
Frost " phenomenon.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
In figure, 1, defrosting control system；2, multi-connected machine outdoor unit；3, defrost controller；4, defrost control line；5, imaging passes
Sensor；6, imaging signal transmission line；7, unit fin.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
The control system as shown in Figure 1, a kind of multi-connected machine outdoor unit defrosts, including it is set to 2 unit wing of multi-connected machine outdoor unit
The imaging sensor 5 on 7 surface of piece, imaging sensor 5 are connected with defrosting controller 3, defrosting control by imaging signal transmission line 6
Device 3 is connected to by the control line 4 that defrosts except defrosting system；
Imaging sensor 5 is for obtaining 2 unit fin of multi-connected machine outdoor unit, 7 surface frosting image information, and by multi-connected machine
2 unit fin of outdoor unit, 7 surface frosting information is sent to defrosting controller 3；
Defrosting controller 3 is used to receive the fin surface frosting image information of imaging sensor transmitting, and controls with defrosting
The preset threshold of 5 storage unit of device compares, if being more than preset threshold, the control of defrosting controller 3 carries out defrosting processing except defrosting system,
Otherwise it is handled without defrosting.
Except defrosting system is air-conditioning itself except defrosting system or physical heating remove defrosting system.
Defrosting controller 3 is uniformly arranged in 7 surface of unit fin.
Except defrosting system is distributed using Multipoint Uniform, i.e., multiple defrosting systems are set on the outside of 2 unit fin 7 of multi-connected machine outdoor unit
System realizes that different zones frosting, different zones defrosting avoid large area defrosting, cause the waste of the energy, and it is accurate to can be realized
The purpose of defrosting.
Utilize machine frost eliminating method outside imaging sensor control multi-connected machine room, comprising the following steps:
The frosting image information of acquisition multi-connected machine outdoor unit fin surface in real time is utilized when reaching default defrosting threshold value
Except defrosting system carries out defrosting processing, otherwise without processing.
Specifically, acquiring the frosting image information of multi-connected machine outdoor unit fin surface in real time by imaging sensor 5, and pass
The information and preset threshold comparison acquired to defrosting controller 3, defrosting controller 3 for imaging sensor 5 is sent, when collected
When the frosting degree of multi-connected machine outdoor unit fin surface is greater than preset threshold, then defrosting processing is carried out, is otherwise handled without defrosting.
Using multiple imaging sensors 5 acquisition different zones frosting state, when have frosting region appearance, can through-hole remove
White controller 3 individually defrosts to the region, ensure that multi-connected machine outdoor unit fin surface can defrost in time.
Multiple imaging sensors 5 are all provided on 2 unit fin of multi-connected machine outdoor unit, 7 surface.
Imaging sensor 5 is cmos image sensor.
The controller 3 that defrosts is interior to be equipped with storage unit, carries out preset threshold storage and defrosting information record.
Under operating condition in winter, under certain low temperature and high wet cooling condition, multi-connected machine outdoor unit fin will frosting, utilize
Defrost control system 1, and defrosting in time has great significance to guarantee unit efficient operation, carries out tracking unit using imaging technique
The state change of fin surface frosting carries out control unit defrosting, when the frost layer on fin reaches a certain level, reaches imaging
When removing frost point set by sensor, i.e., preset threshold, imaging sensor will pass through signal transmssion line road direction defrosting controller
Information is issued, defrosting controller passes through defrosting control line sending defrosting instruction after receiving signal, starts to defrost, certainly using air-conditioning
Body defrosts except defrosting system, or carries out quickly defrosting using physical heating system, and outdoor machine of air-conditioner surface is made to reach clean
Purpose；When defrosting to a certain extent, imaging sensor detects that multi-connected machine outdoor unit fin frosting degree is less than preset threshold, leads to
It crosses signal transmssion line road direction defrosting controller and sends wind velocity signal, defrosting controller passes through defrosting control line hair after receiving signal
Terminate defrosting instruction out, defrosting terminates.
This system is simple, and using automatic control, cold snap is not necessarily to personal management.Image is acquired using imaging sensor,
Once reaching preset threshold, defrosting processing can be carried out, can be defrosted in time, defrosting effect is good, improves building comfort.Through
Ji is reliable, and operation is rationally, easy for installation.By image perception, accurate recording multi-connected machine outdoor unit fin frosting state, frosting is thick
Degree, frosting distribution, the size of frosting degree, to carry out the judgement at defrosting control point；Defrosting control point is accurate, when image perception arrives
When the frosting of unit fin surface reaches the frosting thickness or frosting degree of program setting, unit begins to defrost, and in this way may be used
There is " accidentally defrosting " phenomenon of " frostless defrosting " or " thering is frost not remove " to avoid unit.
Claims (6)
- The control system 1. a kind of multi-connected machine outdoor unit defrosts, which is characterized in that including being set to multi-connected machine outdoor unit (2) unit wing The imaging sensor (5) on piece (7) surface, imaging sensor (5) are connected with defrosting controller by imaging signal transmission line (6) (3), defrosting controller (3) is connected to by defrosting control line (4) except defrosting system；Imaging sensor (5) is used to obtain multi-connected machine outdoor unit (2) unit fin (7) surface frosting image information, and will be multi-joint Machine outdoor unit (2) unit fin (7) surface frosting information is sent to defrosting controller (3)；Defrosting controller (3) be used for receive imaging sensor transmitting fin surface frosting image information, and with defrosting controller (5) the preset threshold comparison of storage unit, if being more than preset threshold, defrosting controller (3), control remove defrosting system and carry out at defrosting Otherwise reason is handled without defrosting.
- The control system 2. a kind of multi-connected machine outdoor unit according to claim 1 defrosts, which is characterized in that defrosting controller (3) it is uniformly arranged in unit fin (7) surface.
- The control system 3. a kind of multi-connected machine outdoor unit according to claim 1 defrosts, which is characterized in that except defrosting system is sky It adjusts and itself removes defrosting system except defrosting system or physical heating.
- The control system 4. a kind of multi-connected machine outdoor unit according to claim 3 defrosts, which is characterized in that except defrosting system uses Multipoint Uniform distribution.
- The control system 5. a kind of multi-connected machine outdoor unit according to claim 1 defrosts, which is characterized in that imaging sensor It (5) is cmos image sensor.
- The control system 6. a kind of multi-connected machine outdoor unit according to claim 1 defrosts, which is characterized in that defrosting controller (3) storage unit is equipped in.
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| CN201820474464.XU CN208332590U (en) | 2018-04-04 | 2018-04-04 | A kind of multi-connected machine outdoor unit defrosting control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426345A (en) * | 2018-04-04 | 2018-08-21 | 陕西建工安装集团有限公司 | A kind of multi-connected machine outdoor unit defrosting control system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426345A (en) * | 2018-04-04 | 2018-08-21 | 陕西建工安装集团有限公司 | A kind of multi-connected machine outdoor unit defrosting control system and method |
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