CN204438585U - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
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- CN204438585U CN204438585U CN201520027832.2U CN201520027832U CN204438585U CN 204438585 U CN204438585 U CN 204438585U CN 201520027832 U CN201520027832 U CN 201520027832U CN 204438585 U CN204438585 U CN 204438585U
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- heat exchanger
- branch road
- air
- conditioning system
- outdoor heat
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Abstract
The object of utility model is to provide a kind of air-conditioning system, and it can prevent from freezing bottom outdoor unit heat exchanger.For realizing the air-conditioning system of described object, comprise the compressor connecting into a working medium circulation path, four-way change-over valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, described outdoor heat exchanger is finned heat exchanger, described finned heat exchanger has the heat exchanger tube of band heat exchange fin and is configured with current divider in hydraulic fluid side, at least one heat exchanger tube forms the branch road for flow of refrigerant, be characterized in, this air-conditioning system also comprises anti-freeze branch road, the described first end of anti-freeze branch road is connected with the exhaust side of compressor, second end is connected with the heat exchanger tube bottom outdoor heat exchanger, high-temperature high-pressure refrigerant gas for being discharged by compressor is transported to described heat exchanger tube and carries out heat exchange, prevent from freezing bottom outdoor heat exchanger.
Description
Technical field
The utility model relates to air-conditioning system, particularly relates to the air-conditioning system being suitable for running in the winter time.
Background technology
When winter, outdoor environment temperature is very low, and after air conditioner is opened, along with the growth of unit operation time, outdoor unit heat exchanger surface frosting will be cumulative, at this moment just needs defrosting.Open defrosting running a period of time, frosting is slowly melted, and at this moment air-conditioning restarts to heat running.But bottom heat exchanger of outdoor unit, often condensed water is not also all discharged, just start and heat running, bottom such heat exchanger when environment temperature is too low, be just in frozen state always.And temperature too low time, the condensation flow of defrosting on outdoor unit base after, also easily occur to freeze, if defrosting is carried out repeatedly, ice is tied thicker and thicker, is finally blocked by off-premises station osculum.And from control aspect, the defrost thermistor of air-conditioning, a branch road bottom of general machine heat exchanger disposed in the outdoor.Such defrost thermistor will frequently send defrosting signal, heats and cannot carry out at all.The method tackling this situation increases osculum, a lot of air-conditioning products on this 2 years markets, and the osculum of base plate all presents the trend of increase, and if osculum area is excessive, will larger energy loss be there will be.Also there is part producer, bottom heat exchanger, place electric heater unit, prevent the problem of freezing bottom heat exchanger.But there is highly energy-consuming like this, security is low, easily aging in outdoor for a long time, the problems such as poor reliability.
Utility model content
The purpose of this utility model is to provide a kind of air-conditioning system, and it can prevent from freezing bottom outdoor unit heat exchanger.
For realizing the air-conditioning system of described object, comprise the compressor connecting into a working medium circulation path, four-way change-over valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, described outdoor heat exchanger is finned heat exchanger, described finned heat exchanger has the heat exchanger tube of band heat exchange fin and is configured with current divider in hydraulic fluid side, at least one heat exchanger tube forms the branch road for flow of refrigerant, be characterized in, this air-conditioning system also comprises anti-freeze branch road, the described first end of anti-freeze branch road is connected with the exhaust side of compressor, second end is connected with the heat exchanger tube bottom outdoor heat exchanger, high-temperature high-pressure refrigerant gas for being discharged by compressor is transported to described heat exchanger tube and carries out heat exchange, prevent from freezing bottom outdoor heat exchanger.
Described air-conditioning system, its further feature is, is provided with valve in described anti-freeze branch road.
Described air-conditioning system, its further feature is, is provided with throttling arrangement in described anti-freeze branch road.
Described air-conditioning system, its further feature is, described throttling arrangement is capillary.
Described air-conditioning system, its further feature is, is provided with magnetic valve in described anti-freeze branch road, and described magnetic valve is arranged as throttling arrangement simultaneously.
Described air-conditioning system, its further feature is, described second end of described anti-freeze branch road connects with the nethermost heat exchanger tube of described outdoor heat exchanger, and the current divider of the hydraulic fluid side of described nethermost heat exchanger tube and described outdoor heat exchanger disconnects.
Described air-conditioning system, its further feature is, described second end of described anti-freeze branch road connects with one, the bottom branch road of described outdoor heat exchanger.
The described first end of anti-freeze branch road is connected with the exhaust side of compressor, second end is connected with the heat exchanger tube bottom outdoor heat exchanger, high-temperature high-pressure refrigerant gas for being discharged by compressor is transported to described heat exchanger tube and carries out heat exchange, prevent from freezing bottom outdoor heat exchanger, compared to the method that the osculum of base plate is increased, the utility model can also prevent larger energy loss, compared to the method for placing electric heater unit at exchanger base, the utility model is not easy aging, and security, reliability are better.
Accompanying drawing explanation
The above and other feature of the present utility model, character and advantage become more obvious by passing through below in conjunction with the description of drawings and Examples, wherein:
Fig. 1 is the block diagram of air-conditioning system in the utility model one embodiment.
Fig. 2 is the block diagram of air-conditioning system in another embodiment of the utility model.
Fig. 3 is the utility model block diagram of air-conditioning system in an embodiment again.
Detailed description of the invention
In the following description, with reference to each embodiment, the utility model is described.But, person of skill in the art will appreciate that and can replace when neither one or multiple specific detail or with other and/or implement each embodiment together with addition method, material or assembly.In other situation, not shown or do not describe known structure, material or operation in detail in order to avoid make the aspects of each embodiment of the present utility model obscure.Similarly, in order to the object explained, specific quantity, material and configuration are set forth, to provide the complete understanding to embodiment of the present utility model.But the utility model can be implemented when not having specific detail.In addition, each embodiment shown in accompanying drawing should be understood be illustrative expression and not necessarily draw in proportion.
First embodiment
As shown in Figure 1, air-conditioning system comprises the compressor 1, four-way change-over valve 2, indoor heat exchanger 3, outdoor heat exchanger 4, the throttling arrangement 8 that connect into a working medium circulation path.During air-conditioning system work, the low-pressure steam of air-conditioning system inner refrigerant is sucked by compressor 1 and drains into indoor heat exchanger 3 (as condenser working) after boil down to high steam, the room air that the fan that indoor heat exchanger 3 configures simultaneously sucks flows through heat exchanger 3, take away cold-producing medium liberated heat, make high pressure refrigerant vapor be condensed into highly pressurised liquid.Highly pressurised liquid sprays into outdoor heat exchanger 4 (as evaporator operation) after filter, throttling arrangement 8, and evaporate under corresponding low pressure, draw heat around, carry out heat exchange between the fin that fan makes air constantly enter outdoor heat exchanger 4, and the air turned cold after heat release is sent to outdoor air.When freezing to room air, indoor heat exchanger 3 is as evaporator operation, and correspondingly, outdoor heat exchanger 4 is as condenser working.
Outdoor heat exchanger 4 is finned heat exchanger, the fin comprising many heat exchanger tubes and be arranged on each heat exchanger tube, part heat exchanger tube is connected into a branch road, each branch road is in parallel again, in the hydraulic fluid side (right side in Fig. 1) of heat exchanger, each branch road connects different capillaries respectively, and these different capillaries collect and are connected to current divider, then are connected to refrigerant transfer house steward by current divider; At the gas side (in Fig. 1 left side) of heat exchanger, each branch road is pooled to refrigerant transfer house steward.When heating, the cold-producing medium of liquid enters into each branch road from capillary, in each heat exchanger tube of branch road, flash to gaseous refrigerant gradually, finally escapes and enter the refrigerant transfer house steward of gas side from the other end of branch road.Above-describedly can to obtain from known technology, and in the utility model, the finned heat exchanger of other embodiments can also be adopted.Bottom heat exchanger of outdoor unit, often condensed water is not also all discharged, and just starts and heats running, bottom such heat exchanger when environment temperature is too low, is just in frozen state always.
Continue with reference to Fig. 1, anti-freeze branch road 9 is also provided with between compressor 1 and the hydraulic fluid side of outdoor heat exchanger 4, specifically, one end of anti-freeze branch road 9 is connected with the exhaust side of compressor 1, and the other end is connected with a nethermost branch road 7A of outdoor heat exchanger 4, is provided with magnetic valve 5 and capillary 6 in anti-freeze branch road 9, magnetic valve 5 cuts out under the normal mode of air-conditioning system, open under anti-freeze pattern, capillary 6, for limiting refrigerant flow, plays throttling action.Like this when anti-freeze MODE of operation, at least part of cold-producing medium flow through successively compressor 1, anti-freeze branch road 9, the hydraulic fluid side of a nethermost branch road 7A of outdoor heat exchanger 4, outdoor heat exchanger 4 gas side cold-producing medium house steward, cross valve 2, turn back to compressor 1 again, continuous circulation, gaseous refrigerant, in the nethermost branch road 7A heat release of outdoor heat exchanger 4, so just can prevent from freezing bottom outdoor heat exchanger.
Second embodiment
The present embodiment continues to use element numbers and the partial content of previous embodiment, wherein adopts identical label to represent identical or approximate element, and optionally eliminates the explanation of constructed content.Explanation about clipped can refer to previous embodiment, and it is no longer repeated for the present embodiment.
As shown in Figure 2, this embodiment and the first embodiment difference are, heat exchanger tube 7B is provided with bottom outdoor heat exchanger 4, heat exchanger tube 7B can arrange heat exchange fin, to increase heat exchange area, heat exchanger tube 7B is different from the ordinary branch of outdoor heat exchanger 4, the gas side cold-producing medium house steward of its one end junction chamber external heat exchanger 4, and the other end no longer capillary of the hydraulic fluid side of junction chamber external heat exchanger 4 or current divider, one end of anti-freeze branch road 9 is connected with heat exchanger tube 7B.Like this when anti-freeze MODE of operation, at least part of cold-producing medium flow through successively compressor 1, anti-freeze branch road 9, the nethermost heat exchanger tube 7B of outdoor heat exchanger 4, outdoor heat exchanger 4 gas side cold-producing medium house steward, cross valve 2, turn back to compressor 1 again, continuous circulation, gaseous refrigerant, in the nethermost heat exchanger tube 7B heat release of outdoor heat exchanger 4, so just can prevent from freezing bottom outdoor heat exchanger.
3rd embodiment
The present embodiment continues to use element numbers and the partial content of previous embodiment, wherein adopts identical label to represent identical or approximate element, and optionally eliminates the explanation of constructed content.Explanation about clipped can refer to previous embodiment, and it is no longer repeated for the present embodiment.
As shown in Figure 3, this embodiment and the second embodiment difference are, only arrange magnetic valve 5 in anti-freeze branch road 9, and now magnetic valve 5 is by controlling its aperture, can play throttling action, and magnetic valve 5 is arranged as throttling arrangement simultaneously.
Similarly, also can omit capillary 6 on the basis of Fig. 1, an element can be saved like this, to reduce costs.
Although the utility model with preferred embodiment openly as above, but it is not for limiting the utility model, unless otherwise defined, otherwise all technical terms used herein have understood identical implication usual with the those of ordinary skill of refrigeration technology field.Ad hoc approach, device and material are described in subject application, but with method described herein and material type like or any method of equivalence and material can use in the practice of this technology.Although quite in detail and by illustrating the embodiment of description technique, described explanation only for being expressly understood, and is not intended to limit.Use various term in the de-scription to pass on the understanding to this technology, should be understood that the implication of described various term extends to the common languages of various term or grammatical variants or form.Also should be understood that when term be finger device or equipment time, described term or name are referred to as the example in the present age and provide, and this technical step is by the restriction of described literal scope.The term introduced after a while will be understood to by contemporary term description now, and the described term introduced after a while reasonably can be interpreted as the derivative of the system subset name that contemporary term or contemporary term comprise.In addition, when not departing from the scope of disclosed technology, any one or more features of any embodiment of technology can with any one or more other Feature Combinations of arbitrary embodiment of technology.Further, should understand, this technology is not limited to the embodiment of having set forth in order to illustration, but this technology only defines by the fair deciphering of present application for patent appended claims, comprises the equal authenticity of the gamut enjoyed of being had the right by each element of this technology.
Claims (7)
1. air-conditioning system, comprise the compressor connecting into a working medium circulation path, four-way change-over valve, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, described outdoor heat exchanger is finned heat exchanger, described finned heat exchanger has the heat exchanger tube of band heat exchange fin and is configured with current divider in hydraulic fluid side, at least one heat exchanger tube forms the branch road for flow of refrigerant, it is characterized in that, this air-conditioning system also comprises anti-freeze branch road, the described first end of anti-freeze branch road is connected with the exhaust side of compressor, second end is connected with the heat exchanger tube bottom outdoor heat exchanger, high-temperature high-pressure refrigerant gas for being discharged by compressor is transported to described heat exchanger tube and carries out heat exchange, prevent from freezing bottom outdoor heat exchanger.
2. air-conditioning system as claimed in claim 1, is characterized in that, be provided with valve in described anti-freeze branch road.
3. air-conditioning system as claimed in claim 1, is characterized in that, be provided with throttling arrangement in described anti-freeze branch road.
4. air-conditioning system as claimed in claim 3, it is characterized in that, described throttling arrangement is capillary.
5. air-conditioning system as claimed in claim 1, is characterized in that, be provided with magnetic valve in described anti-freeze branch road, and described magnetic valve is arranged as throttling arrangement simultaneously.
6. air-conditioning system as claimed in claim 1, it is characterized in that, described second end of described anti-freeze branch road connects with the nethermost heat exchanger tube of described outdoor heat exchanger, and the current divider of the hydraulic fluid side of described nethermost heat exchanger tube and described outdoor heat exchanger disconnects.
7. air-conditioning system as claimed in claim 1, it is characterized in that, described second end of described anti-freeze branch road connects with one, the bottom branch road of described outdoor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027832.2U CN204438585U (en) | 2015-01-15 | 2015-01-15 | Air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520027832.2U CN204438585U (en) | 2015-01-15 | 2015-01-15 | Air-conditioning system |
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| CN204438585U true CN204438585U (en) | 2015-07-01 |
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| CN201520027832.2U Active CN204438585U (en) | 2015-01-15 | 2015-01-15 | Air-conditioning system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016808A (en) * | 2016-05-23 | 2016-10-12 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN107101275A (en) * | 2017-06-01 | 2017-08-29 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN109405257A (en) * | 2018-09-19 | 2019-03-01 | 珠海格力电器股份有限公司 | The water pump freezing preventer and anti-freeze water pump of air-conditioner set |
| CN109489130A (en) * | 2018-11-02 | 2019-03-19 | 珠海格力电器股份有限公司 | A kind of heat exchanger, outdoor unit and air-conditioning |
| CN110579014A (en) * | 2019-09-03 | 2019-12-17 | 青岛海信日立空调系统有限公司 | Heat exchange device and control method and control device thereof |
| CN114902008A (en) * | 2019-12-30 | 2022-08-12 | Lg电子株式会社 | Air conditioner |
-
2015
- 2015-01-15 CN CN201520027832.2U patent/CN204438585U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016808A (en) * | 2016-05-23 | 2016-10-12 | 珠海格力电器股份有限公司 | Air-conditioning system and control method thereof |
| CN106016808B (en) * | 2016-05-23 | 2018-08-10 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN107101275A (en) * | 2017-06-01 | 2017-08-29 | 青岛海尔空调器有限总公司 | A kind of air conditioner and its control method |
| CN109405257A (en) * | 2018-09-19 | 2019-03-01 | 珠海格力电器股份有限公司 | The water pump freezing preventer and anti-freeze water pump of air-conditioner set |
| CN109489130A (en) * | 2018-11-02 | 2019-03-19 | 珠海格力电器股份有限公司 | A kind of heat exchanger, outdoor unit and air-conditioning |
| CN110579014A (en) * | 2019-09-03 | 2019-12-17 | 青岛海信日立空调系统有限公司 | Heat exchange device and control method and control device thereof |
| CN114902008A (en) * | 2019-12-30 | 2022-08-12 | Lg电子株式会社 | Air conditioner |
| CN114902008B (en) * | 2019-12-30 | 2024-01-26 | Lg电子株式会社 | Air conditioner |
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