CN207299267U - Air-conditioning system and its outdoor unit - Google Patents
Air-conditioning system and its outdoor unit Download PDFInfo
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- CN207299267U CN207299267U CN201721338491.6U CN201721338491U CN207299267U CN 207299267 U CN207299267 U CN 207299267U CN 201721338491 U CN201721338491 U CN 201721338491U CN 207299267 U CN207299267 U CN 207299267U
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- heat exchange
- regulating valve
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- conditioning system
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Abstract
The utility model discloses a kind of air-conditioning system and its outdoor unit, wherein, outdoor unit includes：Outdoor heat exchanger, including the first heat exchange unit and the second heat exchange unit, the first heat exchange unit have the first heat exchange flow path, and the second heat exchange unit has the second heat exchange flow path, and the first heat exchange unit and the second heat exchange unit share the 3rd heat exchange flow path；First distributor, is arranged on the first heat exchange flow path；Second distributor, is arranged on the second heat exchange flow path；Cold medium regulator, cold medium regulator includes the first regulating valve and the second regulating valve, first regulating valve is arranged on the first heat exchange flow path, second regulating valve is arranged on the second heat exchange flow path, cold medium regulator is when air-conditioning system is run with low-temperature heating operating mode by controlling the first regulating valve and the second regulating valve so that the frosting thickness of the first heat exchange unit is consistent with the frosting thickness of the second heat exchange unit, so as to so that whole outdoor heat exchanger realizes defrosting, and then can ensure the heating effect of air-conditioning system completely.
Description
Technical field
It the utility model is related to air-conditioning technical field, the outdoor unit of more particularly to a kind of air-conditioning system and a kind of air-conditioning system
System.
Background technology
In recent years, with the maximization of air-conditioning equipment, the increase of supporting heat exchanger cumulative volume, single heat exchange unit quantity and
Area is consequently increased, simultaneously as distributor pipeline, which welds unequal factor, can all cause the disengaging of heat exchanger heat exchange flow path
Mouth pressure difference is different.
When air-conditioning system operates in low-temperature heating operating mode, outdoor heat exchanger meeting frosting, under the impacts of above factors, room
External heat exchanger is it is possible that the non-uniform phenomenon of frosting, so that when can cause the outdoor unit of air-conditioning system to operate in defrosting operating condition,
The incomplete phenomenon of generation defrosting.If defrosting is incomplete, due to there is white residual on outdoor heat exchanger, it is normal to reduce outdoor unit
Heat transfer effect during operation, the heating capacity of air-conditioning system can also decrease.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this reason, this reality
It is to propose a kind of outdoor unit of air-conditioning system with a new purpose, the outdoor unit is in air-conditioning system with low-temperature heating operating mode
By controlling the first regulating valve and the second regulating valve that the frosting thickness of the first heat exchange unit and the second heat exchange can be made single during operation
The frosting thickness of member is consistent, so that so that whole outdoor heat exchanger realizes defrosting, and then can ensure air-conditioning system completely
Heating effect.
Another purpose of the utility model is to propose a kind of air-conditioning system.
To reach above-mentioned purpose, the utility model first aspect proposes a kind of outdoor unit of air-conditioning system, including：It is outdoor
Heat exchanger, the outdoor heat exchanger include the first heat exchange unit and the second heat exchange unit, and first heat exchange unit has first
Exchange heat flow path, and second heat exchange unit has the second heat exchange flow path, first heat exchange unit and second heat exchange unit
Share the 3rd heat exchange flow path；First distributor, first distributor are arranged on the first heat exchange flow path；Second distribution
Device, second distributor are arranged on the second heat exchange flow path；Cold medium regulator, the cold medium regulator include the
One regulating valve and the second regulating valve, first regulating valve are arranged on the first heat exchange flow path, and second regulating valve is set
Put on the described second heat exchange flow path, the cold medium regulator passes through when the air-conditioning system is run with low-temperature heating operating mode
First regulating valve and the second regulating valve are controlled so that the frosting thickness of first heat exchange unit and the described second heat exchange are single
The frosting thickness of member is consistent.
The outdoor unit of air-conditioning system according to the present utility model, outdoor heat exchanger include the first heat exchange unit and the second heat exchange
Unit, the first heat exchange unit have first heat exchange flow path, the second heat exchange unit have second heat exchange flow path, the first heat exchange unit and
Second heat exchange unit shares the 3rd heat exchange flow path, and cold medium regulator includes the first regulating valve and the second regulating valve, and first is adjusted
Valve is arranged on the first heat exchange flow path, and the second regulating valve is arranged on the second heat exchange flow path, and cold medium regulator is in air-conditioning system
By controlling the first regulating valve and the second regulating valve so that the frosting thickness of the first heat exchange unit when being run with low-temperature heating operating mode
It is consistent with the frosting thickness of the second heat exchange unit, so as to so that whole outdoor heat exchanger realizes defrosting completely, Jin Erke
To ensure the heating effect of air-conditioning system.
In addition, technology additional as follows can also be had according to the outdoor unit of the utility model air-conditioning system set forth above
Feature：
Specifically, first regulating valve and second regulating valve are electric expansion valve.
Specifically, when the frosting thickness of first heat exchange unit is more than the frosting thickness of second heat exchange unit,
If the air-conditioning system is run with defrosting operating condition, the cold medium regulator increase the aperture of first regulating valve with
The cold medium flux of the described first heat exchange flow path is passed through in increase.
Further, first heat exchange unit frosting thickness be less than second heat exchange unit frosting thickness
When, if the air-conditioning system is run with defrosting operating condition, the cold medium regulator increases opening for second regulating valve
Spend to increase the cold medium flux by the described second heat exchange flow path.
Further, in the air-conditioning system normal operation, first regulating valve and second regulating valve are protected
It is constant to hold initial opening.
To reach above-mentioned purpose, the another aspect of the utility model proposes a kind of air-conditioning system, it includes above-mentioned sky
The outdoor unit of adjusting system.
The air-conditioning system of the utility model, by above-mentioned outdoor fan, cold medium regulator is in air-conditioning system with low temperature
By controlling the first regulating valve and the second regulating valve so that the frosting thickness of the first heat exchange unit and second when heating condition is run
The frosting thickness of heat exchange unit is consistent, so as to so that whole outdoor heat exchanger realizes defrosting, and then can ensure completely
The heating effect of air-conditioning system.
Brief description of the drawings
The above-mentioned and/or additional aspect of the utility model and advantage from the following description of the accompanying drawings of embodiments will
Become obvious and be readily appreciated that, wherein,
Fig. 1 is the structure diagram according to the outdoor unit of the air-conditioning system of the utility model one embodiment；
Fig. 2 is the structure diagram according to the air-conditioning system of the utility model one embodiment.
Embodiment
The embodiment of the utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is same or like element.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
With reference to the accompanying drawings come describe according to the utility model embodiment propose air-conditioning system outdoor unit and air-conditioning system
System.
Fig. 1 is the structure diagram according to the outdoor unit of the air-conditioning system of the utility model one embodiment.Such as Fig. 1 institutes
Show, which includes：Outdoor heat exchanger 1, the first distributor 2, the second distributor 3 and cold medium regulator 4.
Wherein, outdoor heat exchanger 1 includes the first heat exchange unit 101 and the second heat exchange unit 102, the first heat exchange unit 101
With the first heat exchange flow path L1, the second heat exchange unit 102 has the second heat exchange flow path L2, and the first heat exchange unit 101 and second changes
Hot cell 102 shares the 3rd heat exchange flow path L3.First distributor 2 is arranged on the first heat exchange flow path L1, and the second distributor 3 is set
On the second heat exchange flow path L2.Cold medium regulator 4 includes the first regulating valve 401 and the second regulating valve 402, the first regulating valve
401 are arranged on the first heat exchange flow path L1, and the second regulating valve sets 402 on the second heat exchange flow path L2, and cold medium regulator 4 exists
By controlling the first regulating valve 401 and the second regulating valve 402 so that the first heat exchange when air-conditioning system is run with low-temperature heating operating mode
The frosting thickness of unit 101 and the frosting thickness of the second heat exchange unit 102 are consistent.
In the embodiment of the utility model, the first regulating valve 401 and the second regulating valve 402 all can be electronic expansions
Valve.
Specifically, as shown in Figure 1, when air-conditioning system operates in low-temperature heating operating mode, the meeting frosting of outdoor heat exchanger 1, by
Welding unequal factor in distributor pipeline can cause the inlet outlet pressure differential of the heat exchange flow path of outdoor heat exchanger 1 different, so that meeting
The non-uniform phenomenon of appearance frosting of outdoor heat exchanger 1 is may result in, that is, the heat exchange unit frosting having is thicker, and some heat exchange
Unit frosting is relatively thin, when outdoor unit of air-conditioning system operates in defrosting operating condition, it is possible that the thicker heat exchange unit of frosting removes
The infull phenomenon of frost.
For this reason, in the implementation of the utility model, when outdoor unit of air-conditioning system operates in defrosting operating condition, refrigerant adjusts dress
4 are put to adjust the first regulating valve 401 and second according to the frosting depth information of the first heat exchange unit 101 and the second heat exchange unit 102
The aperture of section valve 402 is controlled, and the aperture of the corresponding regulating valve of the thicker heat exchange unit of increase frosting, knot is flowed into increase
The cold medium flux of the thicker heat exchange unit of frost, to realize the quickly defrosting of the thicker heat exchange unit of frosting, finally realizes whole room
The complete defrosting of external heat exchanger, to ensure heat transfer effect during outdoor unit normal operation, and then can ensure the system of air-conditioning system
Thermal effect.
One embodiment according to the present utility model, is more than the second heat exchange unit in the frosting thickness δ 1 of the first heat exchange unit
Frosting thickness δ 2 when, if air-conditioning system is run with defrosting operating condition, cold medium regulator 4 increases the first regulating valve 401
Aperture to increase the cold medium flux by the first heat exchange flow path L1.
When the frosting thickness δ 1 of the first heat exchange unit is less than the frosting thickness δ 2 of the second heat exchange unit, if air-conditioning system
When being run with defrosting operating condition, cold medium regulator 4 then increases the aperture of the second regulating valve 402 to increase by the second heat exchange flow path
The cold medium flux of L2.
Specifically, when outdoor unit of air-conditioning system operates in defrosting operating condition, cold medium regulator 4 obtains the first heat exchange unit
Frosting thickness δ 1 and the second heat exchange unit frosting thickness δ 2, and judged.If 1 ＞ δ 2 of δ, the heat exchange of increase first is single
The aperture of the regulating valve of the corresponding heat exchange flow path of member 101, that is, increase the aperture of the first regulating valve 401, and flowing into first with increase changes
The cold medium flux of hot cell 101, so as to fulfill the quickly defrosting of the first heat exchange unit 101.If 1 ＜ δ 2 of δ, increase second is changed
The aperture of the regulating valve of the corresponding heat exchange flow path of hot cell 102, that is, increase the aperture of the second regulating valve 402, and the is flowed into increase
The cold medium flux of two heat exchange units 102, so as to fulfill the quickly defrosting of the second heat exchange unit 102.And if δ 1=δ 2, keep
First regulating valve 401 and the second regulating valve 402 are maintained at current aperture.Thus, it is possible to make the frosting thickness δ of the first heat exchange unit
1 is consistent with the frosting thickness δ 2 of the second heat exchange unit, the complete defrosting of whole outdoor heat exchanger is finally realized, to ensure room
Heat transfer effect during outer machine normal operation, and then can ensure the heating effect of air-conditioning system.
In the embodiment of the utility model, in air-conditioning system normal operation, the first regulating valve 401 and the second regulating valve
402 keep initial opening constant.
Specifically, after air-conditioning system completes defrosting program, cold medium regulator 4 adjusts the first regulating valve 401 and second
The aperture regulation of valve 402 is saved to initial opening, and in air-conditioning system with the pattern (for example, heating mode) beyond defrosting mode
During normal operation, cold medium regulator 4 keeps the aperture of the first regulating valve 401 and the second regulating valve 402 constant in initial opening.
Wherein, the initial opening of the first regulating valve 401 and the second regulating valve 402 can be preset according to actual conditions.
In conclusion according to the outdoor unit of the air-conditioning system of the utility model embodiment, outdoor heat exchanger is changed including first
Hot cell and the second heat exchange unit, the first heat exchange unit have the first heat exchange flow path, and there is the second heat exchange unit the second heat exchange to flow
Road, the first heat exchange unit and the second heat exchange unit share the 3rd heat exchange flow path, and cold medium regulator includes the first regulating valve and the
Two regulating valves, the first regulating valve are arranged on the first heat exchange flow path, and the second regulating valve is arranged on the second heat exchange flow path, refrigerant tune
Regulating device is when air-conditioning system is run with low-temperature heating operating mode by controlling the first regulating valve and the second regulating valve so that first changes
The frosting thickness of hot cell is consistent with the frosting thickness of the second heat exchange unit, so as to so that whole outdoor heat exchanger is realized
Defrosting completely, and then can ensure the heating effect of air-conditioning system.
In addition, as shown in Fig. 2, the embodiment of the utility model also proposes a kind of air-conditioning system 100, it includes above-mentioned sky
The outdoor unit of adjusting system.
The air-conditioning system of utility model embodiment, by above-mentioned outdoor fan, cold medium regulator air-conditioning system with
When low-temperature heating operating mode is run by control the first regulating valve and the second regulating valve so that the first heat exchange unit frosting thickness with
The frosting thickness of second heat exchange unit is consistent, so as to so that whole outdoor heat exchanger realizes defrosting completely, and then can be with
Ensure the heating effect of air-conditioning system.
In the description of the utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limit to the utility model
System.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the utility model, " multiple " are meant that at least two, such as two
It is a, three etc., unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this area
For art personnel, concrete meaning of the above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature is "above" or "below" second feature
Can be that the first and second features directly contact, or the first and second features pass through intermediary mediate contact.Moreover, first is special
Sign second feature " on ", " top " and " above " can be fisrt feature directly over second feature or oblique upper, or only
Represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be with
Be fisrt feature immediately below second feature or obliquely downward, or be merely representative of fisrt feature level height and be less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
Combine in an appropriate manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this area
Technical staff can by the different embodiments or example described in this specification and different embodiments or exemplary feature into
Row combines and combination.
Although the embodiment of the utility model has been shown and described above, it is to be understood that above-described embodiment is
Exemplary, it is impossible to the limitation to the utility model is interpreted as, those of ordinary skill in the art are in the scope of the utility model
It is interior above-described embodiment to be changed, changed, replaced and modification.
Claims (6)
- A kind of 1. outdoor unit of air-conditioning system, it is characterised in that including：Outdoor heat exchanger, the outdoor heat exchanger include the first heat exchange unit and the second heat exchange unit, first heat exchange unit With the first heat exchange flow path, second heat exchange unit has the second heat exchange flow path, first heat exchange unit and described second Heat exchange unit shares the 3rd heat exchange flow path；First distributor, first distributor are arranged on the first heat exchange flow path；Second distributor, second distributor are arranged on the second heat exchange flow path；Cold medium regulator, the cold medium regulator include the first regulating valve and the second regulating valve, and first regulating valve is set Put on the described first heat exchange flow path, second regulating valve is arranged on the second heat exchange flow path, and the refrigerant adjusts dress Put when the air-conditioning system is run with low-temperature heating operating mode by controlling first regulating valve and the second regulating valve so that institute The frosting thickness and the frosting thickness of second heat exchange unit for stating the first heat exchange unit are consistent.
- 2. the outdoor unit of air-conditioning system as claimed in claim 1, it is characterised in that first regulating valve and described second is adjusted It is electric expansion valve to save valve.
- 3. the outdoor unit of air-conditioning system as claimed in claim 1 or 2, it is characterised in that in the knot of first heat exchange unit It is described if the air-conditioning system is run with defrosting operating condition when frost thickness are more than the frosting thickness of second heat exchange unit Cold medium regulator then increases the aperture of first regulating valve to increase the cold medium flux by the described first heat exchange flow path.
- 4. the outdoor unit of air-conditioning system as claimed in claim 1 or 2, it is characterised in that in the knot of first heat exchange unit It is described if the air-conditioning system is run with defrosting operating condition when frost thickness are less than the frosting thickness of second heat exchange unit Cold medium regulator then increases the aperture of second regulating valve to increase the cold medium flux by the described second heat exchange flow path.
- 5. the outdoor unit of air-conditioning system as claimed in claim 1, it is characterised in that in the air-conditioning system normal operation, First regulating valve and second regulating valve keep initial opening constant.
- 6. a kind of air-conditioning system, it is characterised in that include the outdoor of the air-conditioning system as any one of claim 1-5 Machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338491.6U CN207299267U (en) | 2017-10-16 | 2017-10-16 | Air-conditioning system and its outdoor unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338491.6U CN207299267U (en) | 2017-10-16 | 2017-10-16 | Air-conditioning system and its outdoor unit |
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| Publication Number | Publication Date |
|---|---|
| CN207299267U true CN207299267U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338491.6U Active CN207299267U (en) | 2017-10-16 | 2017-10-16 | Air-conditioning system and its outdoor unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539477A (en) * | 2018-10-31 | 2019-03-29 | 青岛海尔空调电子有限公司 | Multi-online air-conditioning system and its defrosting control method |
| CN109798600A (en) * | 2019-03-20 | 2019-05-24 | 珠海格力电器股份有限公司 | Heat pump system, air conditioner, outdoor unit and control method of outdoor unit |
| CN110173939A (en) * | 2019-05-17 | 2019-08-27 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner |
| CN111854057A (en) * | 2019-04-29 | 2020-10-30 | 青岛海尔空调电子有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
-
2017
- 2017-10-16 CN CN201721338491.6U patent/CN207299267U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109539477A (en) * | 2018-10-31 | 2019-03-29 | 青岛海尔空调电子有限公司 | Multi-online air-conditioning system and its defrosting control method |
| CN109798600A (en) * | 2019-03-20 | 2019-05-24 | 珠海格力电器股份有限公司 | Heat pump system, air conditioner, outdoor unit and control method of outdoor unit |
| CN111854057A (en) * | 2019-04-29 | 2020-10-30 | 青岛海尔空调电子有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN111854057B (en) * | 2019-04-29 | 2022-02-22 | 青岛海尔空调电子有限公司 | Control method and device for defrosting of air conditioner and air conditioner |
| CN110173939A (en) * | 2019-05-17 | 2019-08-27 | 青岛海尔空调电子有限公司 | Defrosting control method for air conditioner |
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