CN203837113U - Refrigerating system and air conditioner having same - Google Patents

Refrigerating system and air conditioner having same Download PDF

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Publication number
CN203837113U
CN203837113U CN201420211382.8U CN201420211382U CN203837113U CN 203837113 U CN203837113 U CN 203837113U CN 201420211382 U CN201420211382 U CN 201420211382U CN 203837113 U CN203837113 U CN 203837113U
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China
Prior art keywords
stream
heat exchanger
flow direction
switch valve
valve
Prior art date
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Expired - Fee Related
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CN201420211382.8U
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Chinese (zh)
Inventor
吴孔祥
许永锋
梁伯启
李洪生
卢健洪
肖俊钊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Midea Group Co Ltd
Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201420211382.8U priority Critical patent/CN203837113U/en
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Publication of CN203837113U publication Critical patent/CN203837113U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a refrigerating system and an air conditioner having the same. The refrigerating system comprises a compressor, an outdoor heat exchanger and an indoor heat exchanger, an overcooling heat exchanger, and a flow direction changing device. The outdoor heat exchanger and the indoor heat exchanger are both connected with the compressor. The overcooling heat exchanger has a first flow path and a second flow path. The first flow path is connected between the outdoor heat exchanger and the indoor heat exchanger. The flow direction changing device is connected with the second flow path, the first flow path, and the compressor. The flow direction changing device outputs a refrigerant flowing from or to the first flow path to the second flow path, and controls the flow direction of the refrigerant in the second flow path to be identical or opposite to the flow direction of the refrigerant in the first flow path. According to the refrigerating system based on the embodiment of the utility model, the heat exchange efficiency of the overcooling heat exchanger and the work condition of the refrigerating system can be better matched; and the refrigerating system has better overall performance, saves more energy, and becomes more highly-efficient.

Description

Refrigeration system and there is its air-conditioner
Technical field
The utility model relates to art of refrigeration units, in particular to a kind of refrigeration system and have its air-conditioner.
Background technology
In correlation technique, the refrigeration system that contains supercooling apparatus, crosses cold heat exchanger heat exchange efficiency utilization rate low, and can not adapt to the various operating modes (for example, freeze or heat) of refrigeration system, has room for improvement.
Utility model content
The utility model is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, an object of the present utility model is to propose a kind of the highest refrigeration system of heat exchange efficiency that can all can realize cold heat exchanger under different operating modes.
Another object of the present utility model is to propose a kind of air-conditioner with described refrigeration system.
According to refrigeration system of the present utility model, comprise: compressor; Outdoor heat exchanger and indoor heat exchanger, described outdoor heat exchanger is connected with described compressor respectively with described indoor heat exchanger; Cross cold heat exchanger, the described cold heat exchanger of crossing has the first stream and the second stream, and described the first stream is connected between described outdoor heat exchanger and described indoor heat exchanger; And flow direction converting, described flow direction converting is connected with described the second stream, described the first stream and described compressor respectively, described flow direction converting by from or the refrigerant that flows to described the first stream is exported to described the second stream and the refrigerant flow direction controlled in described the second stream is identical or contrary with the refrigerant flow direction in described the first stream.
According to refrigeration system of the present utility model, by the flow direction converting being connected with the second stream, the first stream and compressor is respectively set, make refrigeration system under different operating modes, all can realize two kinds of random switchings of using state that cold heat exchanger is high at heat exchange efficiency or heat exchange efficiency is low.Meanwhile, no matter refrigeration system is in which kind of operating mode, crosses cold heat exchanger and can realize the use state that heat exchange efficiency is the highest.Thus, according to the operating mode of refrigeration system, can select the heat exchange efficiency of crossing cold heat exchanger adapting with it, thereby the heat exchange efficiency of cold heat exchanger and the operating mode of refrigeration system were better mated, effectively promoted the overall performance of refrigeration system, made refrigeration system efficient energy-saving more.
In addition, according to the above-mentioned refrigeration system of the utility model, can also there is following additional technical characterictic:
Described flow direction converting is cross valve, described cross valve has first to fourth valve port, the two ends of described the second stream are connected with the 4th valve port with described the second valve port, and described the first valve port is connected with described the first stream, and described the 3rd valve port is connected with air entry or the jet of described compressor.
Described refrigeration system also comprises: cross cold throttling arrangement, one end of the cold throttling arrangement of described mistake is connected between described the first stream and described indoor heat exchanger, the other end of the cold throttling arrangement of described mistake is connected with described the first valve port, thereby makes that refrigeration system is more energy-conservation and energy consumption is lower.
Described flow direction converting comprises first to fourth switch valve, described in each, switch valve all has first interface and the second interface, described second is connected with described the first stream respectively with the first interface of the 3rd switch valve, described first is connected with air entry or the jet of described compressor respectively with the first interface of the 4th switch valve, described second is connected with one end of described the second stream with the second interface of the 4th switch valve, and described first is connected with the other end of described the second stream with the second interface of the 3rd switch valve.
Each in described the first switch valve, described second switch valve, described the 3rd switch valve and described the 4th switch valve is electromagnetism on-off valve.
Described refrigeration system also comprises: cross cold throttling arrangement, one end of the cold throttling arrangement of described mistake is connected between described the first stream and described indoor heat exchanger, the other end of the cold throttling arrangement of described mistake is connected with the first interface of the 3rd switch valve with described second, thereby makes that refrigeration system is more energy-conservation and energy consumption is lower.
Between described outdoor heat exchanger and described the first stream, be provided with throttling arrangement, thereby make that refrigeration system is more energy-conservation and energy consumption is lower.
Described throttling arrangement is capillary, magnetic valve or electric expansion valve.
According to second aspect of the present utility model, a kind of air-conditioner is proposed.Described air-conditioner comprises the refrigeration system described in first aspect, thereby has simple in structure, low power consumption and other advantages.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of the refrigeration system of an embodiment of the present utility model.
Fig. 2 is according to the structural representation of the refrigeration system of another embodiment of the present utility model.
Fig. 3 is according to the structural representation of the refrigeration system of another embodiment of the present utility model.
Fig. 4 is according to the structural representation of the refrigeration system of another embodiment of the present utility model.
Reference numeral:
Refrigeration system 100, compressor 1, air entry 11, exhaust outlet 12, jet 13, outdoor heat exchanger 2, indoor heat exchanger 3, cross cold heat exchanger 4, the first stream 41, the second stream 42, flow direction converting 5, the first valve port 501, the second valve port 502, the 3rd valve port 503, the 4th valve port 504, the first switch valve 51, second switch valve 52, the 3rd switch valve 53, the 4th switch valve 54, cross cold throttling arrangement 6, throttling arrangement 7, system throttling arrangement 8, system cross valve 9, first 91, second mouthful 92, the 3rd mouthful 93, four-hole 94
The specific embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Below with reference to Fig. 1-Fig. 4, describe according to the refrigeration system 100 of the utility model embodiment.As Figure 1-Figure 4, according to the refrigeration system 100 of the utility model embodiment, comprise compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3, cross cold heat exchanger 4 and flow direction converting 5.
Outdoor heat exchanger 2 is connected with compressor 1 respectively with indoor heat exchanger 3.Be understandable that, refrigeration system 100 of the present utility model can be single refrigeration system that refrigerant flow direction is single, thereby realizes single refrigeration mode or unitary system heat pattern.Refrigeration system 100 of the present utility model can be also the variable heat pump of refrigerant flow direction, thereby can between refrigeration mode and heating mode, switch.
Take refrigeration system 100 as heat pump be example, compressor 1, outdoor heat exchanger 2, indoor heat exchanger 3 can be connected by system cross valve 9.As Figure 1-Figure 4, the first 91 of system cross valve 9 is connected with the air entry 11 of compressor 1, second mouthful 92 of system cross valve 9 is connected with the exhaust outlet 12 of compressor 1, the 3rd mouthful 93 of system cross valve 9 is connected with indoor heat exchanger 3, the four-hole 94 of system cross valve 9 is connected with outdoor heat exchanger 2, by the connected sum between control system cross valve 9 each mouthfuls, disconnect, realize refrigeration mode or the heating mode of refrigeration system 100.
Between outdoor heat exchanger 2 and indoor heat exchanger 3, be also connected with system throttling arrangement 8, alternatively, system throttling arrangement 8 can be capillary, magnetic valve or electric expansion valve, thereby makes that refrigeration system 100 is more energy-conservation, energy consumption is lower.
Cross cold heat exchanger 4 and there is the first stream 41 and the second stream 42.The first stream 41 is connected between outdoor heat exchanger 2 and indoor heat exchanger 3.Flow direction converting 5 is connected with the second stream 42, the first stream 41 and compressor 1 respectively, flow direction converting 5 by from or the refrigerant that flows to the first stream 41 export to the second stream 42, and the refrigerant flow direction that flow direction converting 5 is controlled in the second streams 42 is identical or contrary with the refrigerant flow direction in the first stream 41.
That is to say, cold heat exchanger 4 carries out heat exchange by the refrigerant of first stream 41 of flowing through with the refrigerant of second stream 42 of flowing through excessively.Shown in Fig. 1-Fig. 4, the flow direction of refrigeration system 100 interior refrigerants can be according to the difference of the mode of operation of refrigeration system 100 and difference, when refrigeration system 100 is during in refrigeration mode, refrigerant from the first stream 41 is exported to the second stream 42 through flow direction converting 5, if the refrigerant flow direction that now flow direction converting 5 is controlled in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is the highest, if the refrigerant flow direction that flow direction converting 5 is controlled in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is lower.
When refrigeration system 100 is during in heating mode, the refrigerant that flows to the first stream 41 is also exported to the second stream 42 through flow direction converting 5 simultaneously, if the refrigerant flow direction that now flow direction converting 5 is controlled in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is the highest, if the refrigerant flow direction that flow direction converting 5 is controlled in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is lower.
In brief, according to the refrigeration system 100 of the utility model embodiment, by the flow direction converting 5 being connected with the second stream 42, the first stream 41 and compressor 1 is respectively set, make refrigeration system 100 under different operating modes, all can realize two kinds of random switchings of using state that cold heat exchanger 4 is high at heat exchange efficiency or heat exchange efficiency is low.Meanwhile, no matter refrigeration system 100 is in which kind of operating mode, crosses cold heat exchanger 4 and can realize the use state that heat exchange efficiency is the highest.Thus, according to the operating mode of refrigeration system 100, can select the heat exchange efficiency of crossing cold heat exchanger 4 adapting with it, thereby the heat exchange efficiency of cold heat exchanger 4 was better mated with the operating mode of refrigeration system 100, effectively promote the overall performance of refrigeration system 100, make refrigeration system 100 efficient energy-saving more.
Shown in Fig. 1 and Fig. 3, in an optional embodiment of the present utility model, flow direction converting 5 can be cross valve.Cross valve has the first valve port 501, the second valve port 502, the 3rd valve port 503 and the 4th valve port 504.The two ends of the second stream 42 are connected with the 4th valve port 504 with the second valve port 502, and as shown in figures 1 and 3, one end of the second stream 42 is connected with the 4th valve port 504, and the other end of the second stream 42 is connected with the second valve port 502.The first valve port 501 is connected with the first stream 41.In the embodiment shown in fig. 1, the 3rd valve port 503 is connected with the air entry 11 of compressor 1, and the 3rd valve port 503 is connected with the jet 13 of compressor 1 in the embodiment shown in fig. 3.
That is to say, the converter device 5 that flows to adopting in the embodiment shown in the embodiment shown in Fig. 1 and Fig. 3 is cross valve, and the main distinction of two embodiment is compressor 1 difference of refrigeration system 100.Particularly, the compressor 1 adopting in Fig. 1 has air entry 11 and exhaust outlet 12, and what in Fig. 3, adopt is the compressor 1 with air entry 11, exhaust outlet 12 and jet 13, and the scope of application of refrigeration system 100 is wider thus.
Further, in order to make, refrigeration system 100 is more energy-conservation and energy consumption is lower, as shown in figures 1 and 3, this refrigeration system 100 can also comprise cold throttling arrangement 6, one end of crossing cold throttling arrangement 6 can be connected between the first stream 41 and indoor heat exchanger 3, and the other end of crossing cold throttling arrangement 6 is connected with the first valve port 501.In other words, from or the refrigerant that flows to the first stream 41 after cold throttling arrangement 6 throttlings, export to the second stream 42.Alternatively, crossing cold throttling arrangement 6 can be capillary, magnetic valve or electric expansion valve.
Particularly, shown in Fig. 1 and Fig. 3, when refrigeration system 100 is in refrigeration mode, and the first valve port 501 is communicated with the second valve port 502, when the 3rd valve port 503 is communicated with the 4th valve port 504, flow direction converting 5 will be exported to the second stream 42 through the refrigerant of cold throttling arrangement 6 throttlings from first-class road 41 and stream, and the refrigerant flow direction of controlling in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, and the heat exchange efficiency of crossing cold heat exchanger 4 is the highest.
When refrigeration system 100 is in refrigeration mode, and the first valve port 501 is communicated with the 4th valve port 504, when the second valve port 502 is communicated with the 3rd valve port 503, flow direction converting 5 will be exported to the second stream 42 through the refrigerant of cold throttling arrangement 6 throttlings from first-class road 41 and stream, and the refrigerant flow direction of controlling in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is low.
When refrigeration system 100 is in heating mode, and the first valve port 501 is communicated with the 4th valve port 504, when the second valve port 502 is communicated with the 3rd valve port 503, flow direction converting 5 is exported to the second stream 42 by the refrigerant that flows to the first stream 41 and cold throttling arrangement 6 throttlings of stream process, and the refrigerant flow direction of controlling in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is the highest.
When refrigeration system 100 is in heating mode, and the first valve port 501 is communicated with the second valve port 502, when the 3rd valve port 503 is communicated with the 4th valve port 504, flow direction converting 5 is exported to the second stream 42 by the refrigerant that flows to the first stream 41 and cold throttling arrangement 6 throttlings of stream process, and the refrigerant flow direction of controlling in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is low.
Shown in Fig. 2 and Fig. 4, in another optional embodiment of the present utility model, flow direction converting 5 comprises the first switch valve 51, second switch valve 52, the 3rd switch valve 53 and the 4th switch valve 54.Each switch valve has first interface and the second interface, and the first interface of each switch valve is a interface shown in Fig. 2 and Fig. 4, and the second interface of each switch valve is the b interface shown in Fig. 2 and Fig. 4.
The first interface of second switch valve 52 and the 3rd switch valve is connected with the first stream 41 respectively, and the first interface of second switch valve 52 is connected with the first stream 41, and the first interface of the 3rd switch valve is also connected with the first stream 41.
The second interface of second switch valve 52 and the 4th switch valve 54 is connected with one end of the second stream 42 respectively, the second interface that is second switch valve 52 is connected with one end of the second stream 42, and the second interface of the 4th switch valve 54 is also connected with one end of the second stream 42.
The second interface of the first switch valve 51 and the 3rd switch valve 53 is connected with the other end of the second stream 42, the second interface of the first switch valve 51 is connected with the other end of the second stream 42, and the second interface of the 3rd switch valve 53 is also connected with the other end of the second stream 42.
In the embodiment shown in Figure 2, the first interface of the first switch valve 51 and the 4th switch valve 54 is connected with the air entry 11 of compressor 1 respectively, that is to say that the first interface of the first switch valve 51 and the air entry 11 of compressor 1 are connected, and the first interface of the 4th switch valve 54 is also connected with the air entry 11 of compressor 1.
In the embodiment shown in fig. 4, the first interface of the first switch valve 51 and the 4th switch valve 54 is connected with the jet 13 of compressor 1 respectively, that is to say that the first interface of the first switch valve 51 and the jet 13 of compressor 1 are connected, and the first interface of the 4th switch valve 54 is also connected with the jet 13 of compressor 1.
That is to say, the converter device 5 that flows to adopting in the embodiment shown in the embodiment shown in Fig. 2 and Fig. 4 includes the first switch valve 51, second switch valve 52, the 3rd switch valve 53 and the 4th switch valve 54.The main distinction of two embodiment is compressor 1 difference of refrigeration system 100.Particularly, the compressor 1 adopting in Fig. 2 has air entry 11 and exhaust outlet 12, and what in Fig. 4, adopt is the compressor 1 with air entry 11, exhaust outlet 12 and jet 13, and the scope of application of refrigeration system 100 is wider thus.Alternatively, each in the first switch valve 51, second switch valve 52, the 3rd switch valve 53 and the 4th switch valve 54 can be electromagnetism on-off valve.
Further, in order to make, refrigeration system 100 is more energy-conservation and energy consumption is lower, as shown in Figure 2 and Figure 4, this refrigeration system 100 can also comprise cold throttling arrangement 6, one end of crossing cold throttling arrangement 6 is connected between the first stream 41 and indoor heat exchanger 3, the other end of crossing cold throttling arrangement 6 is connected with the first interface of the 3rd switch valve 53 with second switch valve 52, the other end of crossing cold throttling arrangement 6 is connected with the first interface of second switch valve 52, and the other end of cold throttling arrangement 6 is connected with the first interface of the 3rd switch valve 53 excessively.
Particularly, shown in Fig. 2 and Fig. 4, when refrigeration system 100 is in refrigeration mode, and the first switch valve 51 is opened, second switch valve 52 is opened, the 3rd switch valve 53 cuts out, the 4th switch valve 54 is when cut out, flow direction converting 5 will be exported to the second stream 42 through the refrigerant of cold throttling arrangement 6 throttlings from first-class road 41 and stream, and the refrigerant flow direction of controlling in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is the highest.
When refrigeration system 100 is in refrigeration mode, and the first switch valve 51 cuts out, second switch valve 52 cuts out, the 3rd switch valve 53 is opened, the 4th switch valve 54 is when open, flow direction converting 5 will be exported to the second stream 42 through the refrigerant of cold throttling arrangement 6 throttlings from first-class road 41 and stream, and the refrigerant flow direction of controlling in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is low.
When refrigeration system 100 is in heating mode, and the first switch valve 51 cuts out, second switch valve 52 cuts out, the 3rd switch valve 53 is opened, the 4th switch valve 54 is when open, flow direction converting 5 is exported to the second stream 42 by the refrigerant that flows to the first stream 41 and cold throttling arrangement 6 throttlings of stream process, and the refrigerant flow direction of controlling in the second stream 42 is contrary with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is the highest.
When refrigeration system 100 is in heating mode, and the first switch valve 51 is opened, second switch valve 52 is opened, the 3rd switch valve 53 cuts out, the 4th switch valve 54 is when cut out, flow direction converting 5 is exported to the second stream 42 by the refrigerant that flows to the first stream 41 and cold throttling arrangement 6 throttlings of stream process, and the refrigerant flow direction of controlling in the second stream 42 is identical with the refrigerant flow direction in the first stream 41, the heat exchange efficiency of crossing cold heat exchanger 4 is low.
In addition, in the enforcement shown in Fig. 2, the first switch valve 51 is opened, second switch valve 52 cuts out, the 3rd switch valve 53 is opened, the 4th switch valve 54 is when cut out, and the refrigerant in refrigeration system 100 can also be without the air entry 11 of crossing cold heat exchanger 4 and directly flow back to compressor 1.
In the enforcement shown in Fig. 4, the first switch valve 51 is opened, second switch valve 52 cuts out, the 3rd switch valve 53 is opened, the 4th switch valve 54 is when cut out, and the refrigerant in refrigeration system 100 can also be without the jet 13 of crossing cold heat exchanger 4 and directly flow back to compressor 1.
Shown in Fig. 1-Fig. 4, in order to make refrigeration system 100 further energy-saving and cost-reducing, between outdoor heat exchanger 2 and the first stream 41, can be provided with throttling arrangement 7.Alternatively, throttling arrangement 7 can be capillary, magnetic valve or electric expansion valve.
The utility model also proposes a kind of air-conditioner.Described air-conditioner comprises the refrigeration system 100 of above-described embodiment, thereby has simple in structure, low power consumption and other advantages.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinally ", " laterally ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axially ", " radially ", orientation or the position relationship of indications such as " circumferentially " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characterictic.Thus, at least one this feature can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, the implication of " a plurality of " is at least two, for example two, and three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless separately there is clear and definite restriction.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, First Characteristic Second Characteristic " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, First Characteristic Second Characteristic " on ", " top " and " above " but First Characteristic directly over Second Characteristic or oblique upper, or only represent that First Characteristic level height is higher than Second Characteristic.First Characteristic Second Characteristic " under ", " below " and " below " can be First Characteristic under Second Characteristic or tiltedly, or only represent that First Characteristic level height is less than Second Characteristic.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this description or example and different embodiment or example.
Although illustrated and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment in scope of the present utility model, modification, replacement and modification.

Claims (9)

1. a refrigeration system, is characterized in that, comprising:
Compressor;
Outdoor heat exchanger and indoor heat exchanger, described outdoor heat exchanger is connected with described compressor respectively with described indoor heat exchanger;
Cross cold heat exchanger, the described cold heat exchanger of crossing has the first stream and the second stream, and described the first stream is connected between described outdoor heat exchanger and described indoor heat exchanger; And
Flow direction converting, described flow direction converting is connected with described the second stream, described the first stream and described compressor respectively, described flow direction converting by from or the refrigerant that flows to described the first stream is exported to described the second stream and the refrigerant flow direction controlled in described the second stream is identical or contrary with the refrigerant flow direction in described the first stream.
2. refrigeration system according to claim 1, is characterized in that,
Described flow direction converting is cross valve, described cross valve has first to fourth valve port, the two ends of described the second stream are connected with the 4th valve port with described the second valve port, and described the first valve port is connected with described the first stream, and described the 3rd valve port is connected with air entry or the jet of described compressor.
3. refrigeration system according to claim 2, is characterized in that, also comprises:
Cross cold throttling arrangement, one end of the cold throttling arrangement of described mistake is connected between described the first stream and described indoor heat exchanger, and the other end of the cold throttling arrangement of described mistake is connected with described the first valve port.
4. refrigeration system according to claim 1, is characterized in that,
Described flow direction converting comprises first to fourth switch valve, described in each, switch valve all has first interface and the second interface, described second is connected with described the first stream respectively with the first interface of the 3rd switch valve, described first is connected with air entry or the jet of described compressor respectively with the first interface of the 4th switch valve, described second is connected with one end of described the second stream with the second interface of the 4th switch valve, and described first is connected with the other end of described the second stream with the second interface of the 3rd switch valve.
5. refrigeration system according to claim 4, is characterized in that, each in described the first switch valve, described second switch valve, described the 3rd switch valve and described the 4th switch valve is electromagnetism on-off valve.
6. refrigeration system according to claim 4, is characterized in that, also comprises:
Cross cold throttling arrangement, one end of the cold throttling arrangement of described mistake is connected between described the first stream and described indoor heat exchanger, and the other end of the cold throttling arrangement of described mistake is connected with the first interface of the 3rd switch valve with described second.
7. according to the refrigeration system described in any one in claim 1-6, it is characterized in that, between described outdoor heat exchanger and described the first stream, be provided with throttling arrangement.
8. refrigeration system according to claim 7, is characterized in that, described throttling arrangement is capillary, magnetic valve or electric expansion valve.
9. an air-conditioner, is characterized in that, comprising: according to the refrigeration system described in any one in claim 1-8.
CN201420211382.8U 2014-04-28 2014-04-28 Refrigerating system and air conditioner having same Expired - Fee Related CN203837113U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485767A (en) * 2015-12-22 2016-04-13 珠海格力电器股份有限公司 Multi-split air-conditioning system and control method
CN105716311A (en) * 2016-02-29 2016-06-29 珠海格力电器股份有限公司 Multi-split air conditioning device and system, method for refrigerating and heating and control method for system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105485767A (en) * 2015-12-22 2016-04-13 珠海格力电器股份有限公司 Multi-split air-conditioning system and control method
CN105716311A (en) * 2016-02-29 2016-06-29 珠海格力电器股份有限公司 Multi-split air conditioning device and system, method for refrigerating and heating and control method for system
WO2017148225A1 (en) * 2016-02-29 2017-09-08 珠海格力电器股份有限公司 Multi-split air conditioning device and system, cooling and heating method, and method for controlling multi-split air conditioning system

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