CN214746181U - Air conditioning unit - Google Patents
Air conditioning unit Download PDFInfo
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- CN214746181U CN214746181U CN202120950086.XU CN202120950086U CN214746181U CN 214746181 U CN214746181 U CN 214746181U CN 202120950086 U CN202120950086 U CN 202120950086U CN 214746181 U CN214746181 U CN 214746181U
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- heat exchanger
- storage module
- defrosting
- heat storage
- compressor
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Abstract
The utility model discloses an air conditioning unit, wherein, this unit includes: the indoor heat exchanger is connected with the outdoor heat exchanger; one end of the hot defrosting branch is connected with an exhaust port of the compressor, and the other end of the hot defrosting branch is connected with the outdoor heat exchanger and is used for defrosting the outdoor heat exchanger in a defrosting mode; the heat storage defrosting branch comprises a heat storage module, wherein the first end of the heat storage module is connected with an exhaust port of the compressor, and the second end of the heat storage module is connected with a first connecting point of the indoor heat exchanger and the outdoor heat exchanger and used for storing heat in the heating mode; the first end of the heat storage module is also connected with an air suction port of the compressor and used for exchanging heat with part of refrigerant flowing out of the indoor heat exchanger through the heat storage module in a defrosting mode. The utility model provides an among the prior art change the frost under the condition of heating in succession not thorough, perhaps need high output bypass to change the frost and influence the problem of indoor effect, indoor travelling comfort when having improved the defrosting.
Description
Technical Field
The utility model relates to an air conditioner technical field particularly, relates to an air conditioning unit.
Background
At present, the defrosting mode of an air conditioning unit is mature, and in order to avoid the great reduction of the indoor temperature of the unit during defrosting, a plurality of manufacturers begin to research and develop continuous heating systems with four-way valves not reversing. In the market, a heat storage and defrosting mode of the heat storage module is used for achieving the effect of continuous heating, but the heat storage capacity of the heat storage module cannot ensure that an outer side evaporator is completely defrosted, and the defrosting problem cannot be fundamentally solved. And a method for defrosting by bypassing high-temperature and high-pressure gas is also adopted, so that insufficient indoor heating is easily caused, and the comfort is reduced.
Aiming at the problems that defrosting is incomplete under the condition of continuous heating or high-output bypass defrosting is needed to influence the indoor effect in the prior art, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides an air conditioning unit to at least, it is not thorough to solve to change the frost under the condition of heating in succession among the prior art, perhaps needs high output bypass to change the frost and influence the problem of indoor effect.
In order to solve the above technical problem, according to the utility model discloses an aspect of the embodiment provides an air conditioning unit, include: the indoor heat exchanger comprises a compressor 1, a four-way valve 2, an indoor heat exchanger 3 and an outdoor heat exchanger 4 which are connected in sequence; one end of the hot defrosting branch is connected with an exhaust port of the compressor 1, and the other end of the hot defrosting branch is connected with the outdoor heat exchanger 4 and is used for defrosting the outdoor heat exchanger 4 in a defrosting mode; the heat storage defrosting branch comprises a heat storage module 5, wherein a first end of the heat storage module 5 is connected with an exhaust port of the compressor 1, and a second end of the heat storage module 5 is connected with a first connecting point of the indoor heat exchanger 3 and the outdoor heat exchanger 4 and used for storing heat in the heating mode; the first end of the heat storage module 5 is further connected with an air suction port of the compressor 1, and is used for exchanging heat with a part of refrigerant flowing out of the indoor heat exchanger 3 through the heat storage module 5 in a defrosting mode.
Further, the outdoor heat exchanger 4 is divided into a plurality of zones; one end of the hot defrosting branch connected with the outdoor heat exchanger 4 is divided into a plurality of branches, and the plurality of branches are correspondingly connected with the plurality of areas one by one; each branch is divided into a plurality of branches through a liquid distributor, and the branches and the capillary tube branches of the outdoor heat exchanger 4 are connected to the inlet of the outdoor heat exchanger 4 together.
Furthermore, each branch also comprises a defrosting electromagnetic valve 6 which is used for controlling a plurality of areas of the heat exchanger to defrost.
Further, the branch road of defrosting of heat accumulation still includes: a first solenoid valve 7 located between the exhaust port of the compressor 1 and the first end of the heat storage module 5; and a second electromagnetic valve 8 between the first end of the heat storage module 5 and the air inlet of the compressor 1.
Further, the heat storage module 5 includes: and the electronic expansion valve 9 is used for adjusting the refrigerant flow of the heat storage defrosting branch.
Further, the heat storage module 5 further includes: a first bulb 10 at a first end of the thermal storage module 5; and the second temperature-sensing bulb 11 is positioned at the second end of the heat storage module 5.
Further, still include: the oil separator 12 is positioned at the exhaust port of the compressor 1, and the hot defrosting branch and the heat storage defrosting branch are connected with the exhaust port of the compressor 1 through the oil separator 12;
and the gas-liquid separator 13 is positioned at an air inlet of the compressor 1, and the first end of the heat storage module 5 is connected with the air inlet of the compressor 1 through the gas-liquid separator 13.
The utility model discloses in, provide an air conditioning unit, it combines to change frost with heat accumulation module and steam, has realized the continuous heating of unit, even the cross valve does not fall the electricity yet when changing frost, has reduced the noise of cross valve switching-over. Meanwhile, the problems that the defrosting of the unit is incomplete under the condition of continuous heating or the indoor effect is influenced by high-output bypass defrosting and the indoor temperature is reduced are solved, the effect of no attenuation of indoor heating is really achieved, and the indoor comfort is further improved.
Drawings
Fig. 1 is an alternative schematic configuration of an air conditioning unit according to an embodiment of the present invention;
fig. 2 is an alternative refrigerant flow diagram of a defrosting mode of an air conditioning unit according to the embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, there is provided an air conditioning unit, specifically, fig. 1 shows an optional schematic structural diagram of the unit, as shown in fig. 1, the unit includes:
the indoor heat exchanger comprises a compressor 1, a four-way valve 2, an indoor heat exchanger 3 and an outdoor heat exchanger 4 which are connected in sequence;
one end of the hot defrosting branch is connected with an exhaust port of the compressor 1, and the other end of the hot defrosting branch is connected with the outdoor heat exchanger 4 and is used for defrosting the outdoor heat exchanger 4 in a defrosting mode;
the heat storage defrosting branch comprises a heat storage module 5, wherein a first end of the heat storage module 5 is connected with an exhaust port of the compressor 1, and a second end of the heat storage module 5 is connected with a first connecting point of the indoor heat exchanger 3 and the outdoor heat exchanger 4 and used for storing heat in the heating mode;
in the above embodiment, an air conditioning unit is provided, and the heat storage module and the hot defrosting are combined, so that the continuous heating of the unit is realized, the four-way valve is not powered off even in defrosting, and the noise caused by reversing of the four-way valve is reduced. Meanwhile, the problems that the defrosting of the unit is incomplete under the condition of continuous heating or the indoor effect is influenced by high-output bypass defrosting and the indoor temperature is reduced are solved, the effect of no attenuation of indoor heating is really achieved, and the indoor comfort is further improved.
As shown in fig. 1, the first end of the heat storage module 5 is further connected to the air inlet of the compressor 1, and the heat storage defrosting branch further includes: a first solenoid valve 7 located between the exhaust port of the compressor 1 and the first end of the heat storage module 5; and a second electromagnetic valve 8 between the first end of the heat storage module 5 and the air inlet of the compressor 1.
In the heating mode, the heat storage defrosting branch stores heat, at the moment, the first electromagnetic valve 7 of the heat storage defrosting branch is opened, and the second electromagnetic valve 8 of the heat storage defrosting branch is closed. Fig. 1 also shows a refrigerant flow diagram in a heating mode, and as shown in fig. 1, the refrigerant discharged from the compressor 1 is divided into two paths, and respectively enters the indoor heat exchanger 3 and the heat storage defrosting branch, and the heat storage module 5 stores heat.
Fig. 2 also shows a refrigerant flow diagram in the defrosting mode, and as shown in fig. 2, the outdoor heat exchanger 4 is divided into a plurality of areas; one end of the hot defrosting branch connected with the outdoor heat exchanger 4 is divided into a plurality of branches, and the plurality of branches are correspondingly connected with a plurality of areas of the outdoor heat exchanger one by one; each branch is divided into a plurality of branches by a liquid separator, and the branches and the capillary tube branches of the outdoor heat exchanger 4 are connected to the inlet of the outdoor heat exchanger 4 together. Each branch is provided with a valve with controlled opening, and defrosting can be carried out simultaneously or in batches. The heat exchanger is partitioned and alternately defrosted, and defrosting is faster and more effective. When defrosting, the unit still heats, and cross valve 2 does not also fall the power down, has reduced the noise of valve switching-over.
Meanwhile, in the defrosting mode, the heat storage defrosting branch exchanges heat with part of the refrigerant flowing out of the indoor heat exchanger 3 through the heat storage module 5. The heat storage module 5 is combined with an air conditioning system, and participates in circulation as an evaporator during defrosting, the original evaporator is defrosted, and the indoor temperature is improved during defrosting.
Further, as shown in fig. 1, the thermal storage module 5 further includes: a first bulb 10 at a first end of the thermal storage module 5; and the second temperature-sensing bulb 11 is positioned at the second end of the heat storage module 5. The heat storage module 5 further comprises an electronic expansion valve 9 for adjusting the refrigerant flow of the heat storage defrosting branch. The heat storage of the heat storage module 5 can judge the internal heat storage/release condition according to the inlet and outlet pipe temperature, and correspondingly adjust the electronic expansion valve 9(EEV) in the heat storage module 5. Alternatively, the heat storage and release time of the heat storage module 5 under different working conditions may be set, and the electronic expansion valve 9(EEV) in the heat storage module 5 may be adjusted accordingly.
As a preferred embodiment of the present invention, the air conditioning unit further includes: the oil separator 12 is positioned at the exhaust port of the compressor 1, and the hot defrosting branch and the heat storage defrosting branch are connected with the exhaust port of the compressor 1 through the oil separator 12; and a gas-liquid separator 13 positioned at an air inlet of the compressor 1, wherein the first end of the heat storage module 5 is connected with the air inlet of the compressor 1 through the gas-liquid separator 13.
The air conditioning unit solves the problems that defrosting is not thorough under the condition of continuous heating, or defrosting is needed to be carried out by a high-output bypass, so that the indoor effect is influenced, and the indoor temperature of the unit is reduced during defrosting, so that continuous heating of the unit is realized, the four-way valve is not powered off even during defrosting, and the noise caused by reversing of the valve is reduced; the unit really achieves the effect of no attenuation of indoor heating, and the indoor comfort is further improved. Meanwhile, the heat exchanger is partitioned and alternately defrosted, and defrosting is quicker and more effective.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims (7)
1. An air conditioning assembly, comprising:
the indoor heat exchanger comprises a compressor (1), a four-way valve (2), an indoor heat exchanger (3) and an outdoor heat exchanger (4) which are connected in sequence;
one end of the hot defrosting branch is connected with an exhaust port of the compressor (1), and the other end of the hot defrosting branch is connected with the outdoor heat exchanger (4) and is used for defrosting the outdoor heat exchanger (4) in a defrosting mode;
the heat storage defrosting branch comprises a heat storage module (5), a first end of the heat storage module (5) is connected with an exhaust port of the compressor (1), and a second end of the heat storage module (5) is connected with a first connecting point of the indoor heat exchanger (3) and the outdoor heat exchanger (4) and used for storing heat in the heating mode;
the first end of the heat storage module (5) is also connected with an air suction port of the compressor (1) and used for exchanging heat with a part of refrigerant flowing out of the indoor heat exchanger (3) through the heat storage module (5) in a defrosting mode.
2. The plant according to claim 1, characterized in that said outdoor heat exchanger (4) is divided into a plurality of zones; one end of the hot defrosting branch, which is connected with the outdoor heat exchanger (4), is divided into a plurality of branches, and the plurality of branches are correspondingly connected with the plurality of areas one by one; each branch is divided into a plurality of branches through a liquid distributor, and the branches and the capillary tube branches of the outdoor heat exchanger (4) are connected to the inlet of the outdoor heat exchanger (4) together.
3. The plant according to claim 2, characterized in that each of said branches further comprises a defrosting solenoid valve (6) for controlling a plurality of zones of said heat exchanger to defrost.
4. The aggregate of claim 1, wherein the thermal storage defrosting branch further comprises:
a first solenoid valve (7) located between the exhaust of the compressor (1) and a first end of the thermal storage module (5);
and the second electromagnetic valve (8) is positioned between the first end of the heat storage module (5) and the air suction port of the compressor (1).
5. The aggregate according to claim 1, characterized in that the thermal storage module (5) comprises: and the electronic expansion valve (9) is used for adjusting the refrigerant flow of the heat storage defrosting branch.
6. The aggregate according to claim 1, characterized in that the thermal storage module (5) further comprises:
a first bulb (10) at a first end of the thermal storage module (5);
and the second temperature-sensing bulb (11) is positioned at the second end of the heat storage module (5).
7. The assembly according to claim 1, further comprising:
the oil separator (12) is positioned at the exhaust port of the compressor (1), and the hot air defrosting branch and the heat storage defrosting branch are connected with the exhaust port of the compressor (1) through the oil separator (12);
and the gas-liquid separator (13) is positioned at an air suction port of the compressor (1), and the first end of the heat storage module (5) is connected with the air suction port of the compressor (1) through the gas-liquid separator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120950086.XU CN214746181U (en) | 2021-05-06 | 2021-05-06 | Air conditioning unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120950086.XU CN214746181U (en) | 2021-05-06 | 2021-05-06 | Air conditioning unit |
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| CN214746181U true CN214746181U (en) | 2021-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120950086.XU Active CN214746181U (en) | 2021-05-06 | 2021-05-06 | Air conditioning unit |
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| CN (1) | CN214746181U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198865A (en) * | 2021-11-19 | 2022-03-18 | 青岛海尔空调电子有限公司 | Air conditioning unit and control method thereof |
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2021
- 2021-05-06 CN CN202120950086.XU patent/CN214746181U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198865A (en) * | 2021-11-19 | 2022-03-18 | 青岛海尔空调电子有限公司 | Air conditioning unit and control method thereof |
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