CN103982976B - Conditioner defrosting control method and conditioner - Google Patents

Conditioner defrosting control method and conditioner Download PDF

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Publication number
CN103982976B
CN103982976B CN201410164187.9A CN201410164187A CN103982976B CN 103982976 B CN103982976 B CN 103982976B CN 201410164187 A CN201410164187 A CN 201410164187A CN 103982976 B CN103982976 B CN 103982976B
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conditioner
heat tape
defrost
output tube
stage
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CN201410164187.9A
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CN103982976A (en
Inventor
林竹
丁斐
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GD Midea Air Conditioning Equipment Co Ltd
Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Guangdong Midea Refrigeration Equipment Co Ltd
Guangdong Midea Group Wuhu Air Conditioning Equipment Co Ltd
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Abstract

The open a kind of conditioner defrosting control method of the present invention and conditioner, its method comprises: after heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser; When output tube temperature reaches design temperature, open the heat tape on bottom plate of outdoor unit, make conditioner enter pre-heating stage; Then controlling conditioner and enter the predetermined defrost stage, maintenance heat tape is opened condition, and the time length is T2; After the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards. The present invention is by judging outdoor condenser output tube temperature, three time periods before the opening time of heat tape is divided into conditioner defrost, in defrost, after defrost, by the heat tape of this kind of control certain power of methods combining, the object that conditioner is more energy-conservation can be realized, also the ice cube on chassis can be melted more thoroughly and emptying simultaneously, thus improve the defrosting effect of air-conditioner outdoor unit.

Description

Conditioner defrosting control method and conditioner
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of conditioner defrosting control method and conditioner.
Background technology
Usually when the heat pump air conditioner system of use heat, when outdoor environment temperature is lower, relative humidity is bigger, the condenser of air-conditioner outdoor unit is very easy to frosting, causes indoor heating effect very poor, it is thus desirable to the defrost of intermittent, with reach improve low temperature and high humidity environment under indoor heating effect.
When condenser is carried out defrost, on the one hand, based on the consideration of device security, the water vent of air conditioner outdoor unit chassis can not be opened too much, too much; On the other hand, some atrocious weather as, under the conditions such as heavy snow, the liquid water produced after defrost solidifies again icing very soon, slowly blocks the water vent on chassis, thus cause chassis to freeze, finally cause defrost unclean.
At present for solving this type of problem, the more scheme is adopted to be: the heat tape arranging smaller power on chassis, determines according to the temperature of outdoor to open or stop heat tape. But, this kind of traditional control method, it may occur that user's heat tape when not having using air-condition opens, and thus increases the standby power of air-conditioning, has both wasted electric energy, can not ensure again thoroughly to melt the ice cube on chassis.
Summary of the invention
The main purpose of the present invention is to provide a kind of conditioner defrosting control method and conditioner, it is intended to improves the defrosting effect of air-conditioner outdoor unit, reduces conditioner watt consumption.
In order to achieve the above object, the present invention proposes a kind of conditioner defrosting control method, comprises the following steps:
After heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser;
When described output tube temperature reaches design temperature, open the heat tape on bottom plate of outdoor unit, conditioner is made to enter pre-heating stage, the described pre-heating stage time length is T1, and described design temperature is t, t=t0+ △ t, wherein, t0 is when to be that conditioner is predetermined start defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value;
Control conditioner enters the predetermined defrost stage, and maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2;
After the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards.
Preferably, T1 is 10~20 minutes.
Preferably, T2 is 3~5 minutes.
Preferably, T3 is 5~10 minutes.
Preferably, △ t is 2~4 DEG C.
Preferably, when conditioner shuts down or be standby, heat tape keeps closing condition.
The present invention also proposes a kind of conditioner, comprise outdoor machine and controller, described bottom plate of outdoor unit is provided with heat tape, also comprise thermo-bulb, described thermo-bulb is arranged on the output tube of described outdoor condenser, for, after heat-production functions opened by conditioner, monitoring the output tube temperature of outdoor condenser; Described controller is used for when described output tube temperature reaches design temperature, opens the heat tape on bottom plate of outdoor unit, makes conditioner enter pre-heating stage, and the described pre-heating stage time length is T1; Controlling conditioner afterwards and enter the predetermined defrost stage, maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2; And after the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards; Described design temperature is t, t=t0+ △ t, and wherein, t0 is when to be that conditioner is predetermined start defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value.
Preferably, T1 is 10~20 minutes; T2 is 3~5 minutes; T3 is 5~10 minutes; △ t is 2~4 DEG C.
A kind of conditioner defrosting control method that the present invention proposes and conditioner, by judging outdoor condenser output tube temperature, three time periods before the opening time of heat tape is divided into conditioner defrost, in defrost, after defrost, by the heat tape of this kind of control certain power of methods combining, the object that conditioner is more energy-conservation can be realized, also the ice cube on chassis can be melted more thoroughly and emptying simultaneously, thus improve the defrosting effect of air-conditioner outdoor unit.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the better embodiment of conditioner defrosting control method of the present invention;
Fig. 2 is the opening time schematic diagram of heat tape on chassis of outdoor unit of air conditioner of the present invention.
In order to make the present invention technical scheme clearly, understand, be described in further detail below in conjunction with accompanying drawing.
Embodiment
It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1, the better embodiment of the present invention proposes a kind of conditioner defrosting control method, comprising:
Step S101, after heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser;
The present embodiment is provided with heat tape on bottom plate of outdoor unit, is provided with thermo-bulb on the output tube of outdoor condenser simultaneously, and this thermo-bulb is used for after heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser.
Owing to existing heat tape control method is, the heat tape of smaller power is arranged on chassis, determine according to the temperature of outdoor to open or stop heat tape, its control method underaction is accurate, may occur that user's heat tape when not having using air-condition opens, thus increase the standby power of air-conditioning, both wasted electric energy, can not ensure again thoroughly to melt the ice cube on chassis.
The present embodiment is the output tube temperature according to outdoor condenser, control unlatching or the closedown of ribbon heater, and three time periods (T1, T2, T3 in corresponding diagram 2) before the opening time of heat tape is divided into conditioner defrost, in defrost, after defrost, conditioner energy consumption can be saved, also the ice cube on chassis can be melted more thoroughly and emptying simultaneously.
Wherein, for the selection of heat tape, it is possible to select the heat tape of different capacity according to the outdoor condition of user region, as the heat tape of smaller power can be selected in temperate zone, the heat tape of relatively high power can be selected in frigid zone.
When conditioner shuts down or be standby, heat tape keeps closing condition, to save electric energy. After heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser.
Step S102, when described output tube temperature reaches design temperature, opens the heat tape on bottom plate of outdoor unit, the pre-heating stage before making conditioner enter defrost.
When thermo-bulb monitor output tube temperature reach design temperature time, air-conditioner controller opens the heat tape on bottom plate of outdoor unit, the pre-heating stage before making conditioner enter defrost.
Usually, conditioner is provided with condenser output tube temperature when starting defrost according to preset program, when condenser output tube temperature reaches set(ting)value (such as-a DEG C), starts defrost.
The present embodiment, when output tube temperature reaches design temperature, opens the heat tape on bottom plate of outdoor unit, the condenser output tube temperature of the beginning defrost that this design temperature sets slightly larger than conditioner preset program, if design temperature is t, then t=t0+ △ t, wherein, when t0 is conditioner predetermined beginning defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value, as a kind of better embodiment, △ t value 2~4 DEG C, if t0=-a DEG C, then, and t=-a+ (2~4) DEG C.
When described output tube temperature reaches design temperature, opening the heat tape on bottom plate of outdoor unit, the pre-heating stage before making conditioner enter defrost, the described pre-heating stage time length is that T1, T1 can values 10~20 minutes.
Started by pre-heating stage to melt the ice cube near chassis or frost, to ensure the unimpeded of water vent.
Step S103, control conditioner enters the predetermined defrost stage, and maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2;
Wherein, predetermined defrost stage duration T 2 can be 3~5 minutes.
To the T2 stage terminated from defrost, keep the opened condition of heat tape, to avoid the frost on condenser again to solidify after thawing, cause frost to be trapped on the chassis of outdoor machine.
Step S104, after the conditioner predetermined defrost stage terminates, makes heat tape continue maintenance work time T3, closes heat tape afterwards.
Wherein, T3 can value 5~10 minutes.
After defrost terminates, in order to ensure that the liquid water that air-conditioner outdoor unit generates when defrost is thoroughly discharged, chassis heat tape maintenance work, after 5~10 minutes, namely completes the T3 stage, then closes heat tape.
By controlling method above, it is possible not only to the standby power reducing conditioner, it is achieved the object of energy-saving and emission-reduction, and the water that can ensure on bottom plate of outdoor unit is discharged in time, avoid blocking the defrost caused because of water vent clean, the problem finally causing heating effect poor.
In addition, the present invention also proposes a kind of conditioner, this conditioner comprises the controller of machine and outdoor machine in indoor machine, outdoor machine and watch-keeping cubicle, described bottom plate of outdoor unit is provided with heat tape, the output tube of outdoor condenser is provided with thermo-bulb, for, after heat-production functions opened by conditioner, monitoring the output tube temperature of outdoor condenser; Described controller is used for when described output tube temperature reaches design temperature, opens the heat tape on bottom plate of outdoor unit, the pre-heating stage before making conditioner enter defrost, and the described pre-heating stage time length is T1; Controlling conditioner afterwards and enter the predetermined defrost stage, maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2; And after the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards; Described design temperature is t, t=t0+ △ t, and wherein, t0 is when to be that conditioner is predetermined start defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value.
Implementing mode as one, T1 is 10~20 minutes; T2 is 3~5 minutes; T3 is 5~10 minutes; △ t is 2~4 DEG C.
The principle that heat tape control realization is defrosted by the present embodiment, please refer to above-described embodiment, does not repeat them here.
Embodiment of the present invention conditioner defrosting control method and conditioner, by judging outdoor condenser output tube temperature, three time periods before the opening time of heat tape is divided into conditioner defrost, in defrost, after defrost, by the heat tape of this kind of control certain power of methods combining, the object that conditioner is more energy-conservation can be realized, also the ice cube on chassis can be melted more thoroughly and emptying simultaneously, thus improve the defrosting effect of air-conditioner outdoor unit.
Above are only the preferred embodiments of the present invention; not thereby the patent scope of the present invention is limited; every utilize specification sheets of the present invention and accompanying drawing content to do equivalent structure or flow process conversion; or directly or indirectly it is used in other relevant technical field, all it is included in the scope of patent protection of the present invention with reason.

Claims (8)

1. a conditioner defrosting control method, it is characterised in that, comprise the following steps:
After heat-production functions opened by conditioner, the output tube temperature of monitoring outdoor condenser;
When described output tube temperature reaches design temperature, open the heat tape on bottom plate of outdoor unit, conditioner is made to enter pre-heating stage, the described pre-heating stage time length is T1, and described design temperature is t, t=t0+ △ t, wherein, t0 is when to be that conditioner is predetermined start defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value;
Control conditioner enters the predetermined defrost stage, and maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2;
After the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards.
2. method according to claim 1, it is characterised in that, T1 is 10~20 minutes.
3. method according to claim 1, it is characterised in that, T2 is 3~5 minutes.
4. method according to claim 1, it is characterised in that, T3 is 5~10 minutes.
5. method according to claim 1, it is characterised in that, △ t is 2~4 DEG C.
6. method according to any one of claim 1-5, it is characterised in that, conditioner shutdown or standby time, heat tape keeps closing condition.
7. a conditioner, comprise outdoor machine and controller, described bottom plate of outdoor unit is provided with heat tape, it is characterized in that, also comprise thermo-bulb, described thermo-bulb is arranged on the output tube of described outdoor condenser, for, after heat-production functions opened by conditioner, monitoring the output tube temperature of outdoor condenser; Described controller is used for when described output tube temperature reaches design temperature, opens the heat tape on bottom plate of outdoor unit, makes conditioner enter pre-heating stage, and the described pre-heating stage time length is T1; Controlling conditioner afterwards and enter the predetermined defrost stage, maintenance heat tape is opened condition, and the described predetermined time length in defrost stage is T2; And after the conditioner predetermined defrost stage terminates, make heat tape continue maintenance work time T3, close heat tape afterwards; Described design temperature is t, t=t0+ △ t, and wherein, t0 is when to be that conditioner is predetermined start defrost, the output tube temperature of outdoor condenser, △ t be greater than 0 set(ting)value.
8. conditioner according to claim 7, it is characterised in that, T1 is 10~20 minutes; T2 is 3~5 minutes; T3 is 5~10 minutes; △ t is 2~4 DEG C.
CN201410164187.9A 2014-04-22 2014-04-22 Conditioner defrosting control method and conditioner Active CN103982976B (en)

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CN104534754B (en) * 2014-11-28 2017-02-22 广东美的制冷设备有限公司 Mobile air conditioner and frost removal control method thereof
CN105202724B (en) * 2015-10-21 2018-11-16 Tcl空调器(中山)有限公司 Air-conditioner control method, air conditioner controlling device and air conditioner
CN106352442B (en) * 2016-09-30 2019-05-14 广东美的制冷设备有限公司 A kind of snow removing control method of air-conditioner outdoor unit
CN106765950A (en) * 2016-12-23 2017-05-31 广东美的暖通设备有限公司 The control method of air-conditioning heating system, control device and air-conditioner
CN106642595A (en) * 2017-01-10 2017-05-10 美的集团武汉制冷设备有限公司 Air conditioner and defrosting control method thereof
CN106705302B (en) * 2017-01-10 2019-07-19 美的集团武汉制冷设备有限公司 Air conditioner, defrosting control method and defrosting control system
CN109682018B (en) * 2018-12-27 2020-06-30 广东美的暖通设备有限公司 Control method and control device of heating system and air conditioner
CN109682017B (en) * 2018-12-27 2021-03-23 广东美的暖通设备有限公司 Control method and device for heating system of air conditioner
CN109869869A (en) * 2018-12-29 2019-06-11 珠海格力电器股份有限公司 Outdoor machine of air-conditioner chassis method for heating and controlling
CN110440415A (en) * 2019-08-21 2019-11-12 珠海格力电器股份有限公司 Air-conditioning and its defrosting control method and device, computer readable storage medium
CN110986274B (en) * 2019-11-21 2021-04-27 珠海格力电器股份有限公司 Control method for preventing incomplete defrosting of electric heater, computer readable storage medium and air conditioner
CN111059699B (en) * 2019-12-12 2020-11-24 珠海格力电器股份有限公司 Electric heating belt control method and device, storage medium and air conditioner
CN111457480A (en) * 2020-04-20 2020-07-28 宁波奥克斯电气股份有限公司 Chassis deicing control method and device, air conditioner and storage medium
CN112066623A (en) * 2020-08-27 2020-12-11 西安交通大学 Heating power variable defrosting device of air-cooled refrigerator and control method

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CN201177422Y (en) * 2008-03-06 2009-01-07 张俊 Non-stop defrosting device for air conditioner

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