CN106678984B - Single-row evaporator and air conditioner indoor unit - Google Patents

Single-row evaporator and air conditioner indoor unit Download PDF

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Publication number
CN106678984B
CN106678984B CN201710092581.XA CN201710092581A CN106678984B CN 106678984 B CN106678984 B CN 106678984B CN 201710092581 A CN201710092581 A CN 201710092581A CN 106678984 B CN106678984 B CN 106678984B
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section
straight tube
edge
tube section
sections
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CN106678984A (en
Inventor
孙哲
袁宗萍
韩鹏
曾婧
黄伟青
葛小婷
邓益明
李锦辉
吴君
梁鑫鑫
周广林
陈耀武
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/02—Evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/02—Details of evaporators
    • F25B2339/024—Evaporators with refrigerant in a vessel in which is situated a heat exchanger
    • F25B2339/0242—Evaporators with refrigerant in a vessel in which is situated a heat exchanger having tubular elements

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The invention discloses a single-row evaporator and an air conditioner indoor unit. The single-row evaporator comprises a heat exchange tube, the heat exchange tube comprises a plurality of straight tube sections which are arranged at intervals and arranged in a single row, the straight tube sections comprise first edge straight tube sections and second edge straight tube sections which are positioned at edges, and first bent tube sections for connecting the first edge straight tube sections and the second edge straight tube sections, the straight tube sections further comprise inlet straight tube sections and outlet straight tube sections which are positioned between the first edge straight tube sections and the second edge straight tube sections and are adjacently arranged, a refrigerant inlet is formed in the inlet straight tube sections and communicated with the first edge straight tube sections, a refrigerant outlet is formed in the outlet straight tube sections and communicated with the second edge straight tube sections, in the circulation direction of refrigerants, the refrigerants sequentially pass through the inlet straight tube sections, the first edge straight tube sections, the first bent tube sections, the second edge straight tube sections and the outlet straight tube sections. The single-row evaporator of the invention can reduce liquid drops carried in cold air of an air conditioner.

Description

Single-row evaporator and air conditioner indoor unit
Technical Field
The invention relates to the technical field of refrigeration, in particular to a single-row evaporator and an indoor unit of an air conditioner.
Background
As shown in fig. 1, a single-row evaporator of the prior art includes a single row of heat exchange tubes. The heat exchange tube comprises parallel straight tube sections. Wherein the inlet straight tube section 1 'and the outlet straight tube section 2' are located at two edges, respectively. Generally, in order to prevent liquid refrigerant from entering the compressor, the flow path of the refrigerant in the heat exchange tube is long, and the outlet straight tube section 2 'at the end is overheated, and a temperature difference occurs between the outlet straight tube section 2' and an adjacent tube. Because the outlet straight pipe section 2 'is overheated, air passing through the outlet straight pipe section 2' is high-humidity air, when the high-humidity air is mixed with cold air passing through an adjacent pipeline, water vapor is easy to condense on parts with lower temperature in an air duct to form liquid drops, such as a volute tongue and a cross-flow fan blade, when a fan runs, the liquid drops are easy to blow out along the air duct to cause the problem that the liquid drops are carried in the cold air, and the normal use of the air conditioner is influenced.
Disclosure of Invention
The invention aims to provide a single-row evaporator and an air conditioner indoor unit, which are used for solving the problem that liquid drops are carried in cold air in the air conditioner in the prior art.
The invention provides a single-row evaporator, which comprises a heat exchange tube, wherein the heat exchange tube comprises a plurality of straight tube sections which are arranged at intervals and arranged in a single row, the straight tube sections comprise a first edge straight tube section and a second edge straight tube section which are positioned at the edges, and a first bend tube section for connecting the first edge straight tube section and the second edge straight tube section, the straight tube sections also comprise an inlet straight tube section and an outlet straight tube section which are positioned between the first edge straight tube section and the second edge straight tube section and are arranged adjacently, a refrigerant inlet is arranged on the inlet straight tube section and is communicated with the first edge straight tube section, a refrigerant outlet is arranged on the outlet straight tube section and is communicated with the second edge straight tube section, and in the circulation direction of the refrigerant, the refrigerant sequentially passes through the inlet straight tube section, the first edge straight tube section, the first bend tube section, the second edge straight tube section and the outlet straight tube section.
Further, the heat exchange tube also comprises at least one first middle straight tube section which is arranged between the inlet straight tube section and the first edge straight tube section and is used for communicating the inlet straight tube section with the first edge straight tube section; and/or the heat exchange tube further comprises at least one second middle straight tube section which is arranged between the outlet straight tube section and the second edge straight tube section and is used for communicating the outlet straight tube section with the second edge straight tube section.
Further, the inlet straight pipe section, at least one first middle straight pipe section and adjacent straight pipe sections in the first edge straight pipe sections are communicated through a second bend pipe section; and/or the outlet straight pipe section, the at least one second middle straight pipe section and the adjacent straight pipe section in the second edge straight pipe sections are communicated through a third bend pipe section.
Furthermore, the single-row evaporator is a bending evaporator, and the bending evaporator is provided with at least two bending sections with included angles in the transverse direction of the straight pipe sections.
Further, at least two bending sections include the first bending section, the second bending section and the third bending section that set gradually.
Furthermore, the included angle between the first bending section and the second bending section is 60-80 degrees; and/or the included angle between the second bending section and the third bending section is 130-160 degrees.
Further, the inlet straight pipe section and the outlet straight pipe section are arranged on the same bending section; or the inlet straight pipe section and the outlet straight pipe section are arranged on different bending sections.
Further, the inlet straight pipe section and the outlet straight pipe section are both arranged on the second bending section.
Further, the single-row evaporator also comprises a plurality of fins arranged at intervals in the longitudinal direction of the plurality of straight tube sections, the fins are provided with through holes corresponding to the plurality of straight tube sections, and the straight tube sections are inserted into the fins through the through holes.
Further, the single-row evaporator is a bending evaporator, the bending evaporator is provided with at least two bending sections with included angles between each other in the transverse direction of the straight pipe sections, and the fins and the parts corresponding to the at least two bending sections are arranged in the same direction in the transverse direction of the straight pipe sections.
A second aspect of the present invention provides an indoor unit of an air conditioner, including the single-row evaporator as set forth in any one of the first aspects of the present invention.
Further, the inlet straight tube section and the outlet straight tube section are arranged in the area of the single-row evaporator where the wind speed is the largest.
Based on the single-row evaporator and the air conditioner indoor unit provided by the invention, the single-row evaporator comprises a heat exchange tube, the heat exchange tube comprises a plurality of straight tube sections which are arranged at intervals and arranged in a single row, the plurality of straight tube sections comprise a first edge straight tube section and a second edge straight tube section which are positioned at the edges, and a first bend tube section used for connecting the first edge straight tube section and the second edge straight tube section, the plurality of straight tube sections also comprise an inlet straight tube section and an outlet straight tube section which are positioned between the first edge straight tube section and the second edge straight tube section and are adjacently arranged, a refrigerant inlet is arranged on the inlet straight tube section and is communicated with the first edge straight tube section, a refrigerant outlet is arranged on the outlet straight tube section and is communicated with the second straight tube section, and in the circulation direction of the refrigerant, the refrigerant sequentially passes through the inlet straight tube section, the first edge straight tube section, the first bend tube section, the second edge straight tube section and the outlet straight tube section. The single-row evaporator is characterized in that the inlet straight pipe section and the outlet straight pipe section are arranged adjacently, the cooling capacity of the inlet straight pipe section is higher than that of the adjacent straight pipe section at the upstream of the outlet straight pipe section, and the inlet straight pipe section is favorable for re-heat transfer between the inlet straight pipe section and the outlet straight pipe section, so that the superheat degree of the outlet straight pipe section is favorably reduced, and the inlet straight pipe section is also favorable for drying air near the outlet straight pipe section.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic diagram of a prior art single row evaporator;
FIG. 2 is a schematic view of a single-row evaporator according to an embodiment of the present invention;
FIG. 3 is a partial block diagram of the single bank evaporator section M of FIG. 2;
FIG. 4 is a schematic right side view of the single-row evaporator shown in FIG. 2;
FIG. 5 is a schematic view of the angle configuration between the bends of the single row evaporator shown in FIG. 4;
FIG. 6 is a schematic view of the flow path of the single bank evaporator shown in FIG. 2;
FIG. 7 is a schematic view of the flow path of a single row evaporator according to another embodiment of the present invention;
fig. 8 is a schematic view of the flow path of a single row evaporator according to another embodiment of the present invention.
Each reference numeral represents:
1' -an inlet straight tube section; 2' -an outlet straight pipe section; 1-an inlet straight pipe section; 2-an outlet straight pipe section; 3-a first straight edge tube section; 4-a second edge straight tube section; 5-a first bend section; 6-a first intermediate straight tube section; 7-a second intermediate straight tube section; 8-sealing strips; 11-a liquid inlet pipe assembly; 12-a header assembly; a-a first bending section; b, a second bending section; c-a third bending section.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The single-row evaporator of the embodiment of the invention comprises heat exchange tubes. The heat exchange tube comprises a plurality of straight tube sections which are arranged at intervals and arranged in a single row, and the straight tube sections comprise a first edge straight tube section and a second edge straight tube section which are positioned at edges and a first bend tube section for connecting the first edge straight tube section and the second edge straight tube section. The plurality of straight tube sections further comprises an inlet straight tube section and an outlet straight tube section which are positioned between the first edge straight tube section and the second edge straight tube section and are adjacently arranged. The inlet straight pipe section is provided with a refrigerant inlet and communicated with the first edge straight pipe section, and the outlet straight pipe section is provided with a refrigerant outlet and communicated with the second edge straight pipe section. In the circulation direction of refrigerant, the refrigerant passes through entry straight tube section, first edge straight tube section, first bend section, second edge straight tube section and export straight tube section in proper order. In the single-row evaporator provided by the embodiment of the invention, the inlet straight pipe section and the outlet straight pipe section are arranged adjacently, the cooling capacity of the inlet straight pipe section is stronger than that of the adjacent straight pipe section at the upstream of the outlet straight pipe section, and the secondary heat transfer between the inlet straight pipe section and the outlet straight pipe section is facilitated, so that the superheat degree of the outlet straight pipe section is facilitated to be reduced, and the inlet straight pipe section is also beneficial to drying of air near the outlet straight pipe section.
The structure of the single row evaporator according to the embodiment of the present invention will be described in detail with reference to fig. 2 to 8.
As shown in fig. 2, 3, 4 and 6, the single row evaporator of the present embodiment includes heat exchange tubes. The heat exchange tube comprises a plurality of straight tube sections which are arranged in parallel and arranged in a single row, wherein the straight tube sections comprise a first edge straight tube section 3 and a second edge straight tube section 4 which are positioned at edges, and a first bend section 5 for connecting the first edge straight tube section 3 and the second edge straight tube section 4. The plurality of straight tube sections further comprises an inlet straight tube section 1 and an outlet straight tube section 2 which are positioned between the first edge straight tube section 3 and the second edge straight tube section 4 and are adjacently arranged. The inlet straight pipe section 1 is provided with a refrigerant inlet and is communicated with the first edge straight pipe section 3. The outlet straight pipe section 2 is provided with a refrigerant outlet and is communicated with the second edge straight pipe section 4. As shown in fig. 3 and 6, in the flow direction of the refrigerant, the refrigerant passes through the inlet straight tube section 1, the first edge straight tube section 3, the first bend section 5, the second edge straight tube section 4, and the outlet straight tube section 2 in this order.
As shown in fig. 2, the refrigerant inlet is connected to the liquid inlet pipe assembly 12, and the refrigerant outlet is connected to the gas collecting pipe assembly 11. The flow path of the single-row evaporator is arranged to be one inlet and one outlet, and pipeline parts such as a liquid distribution head, a gas collector and the like are omitted, so that manual welding spots can be greatly reduced, the production efficiency is improved, and the production cost is reduced. Meanwhile, noise such as liquid flow sound can be eliminated.
As shown in fig. 6, the heat exchange tube further comprises at least one first intermediate straight tube section 6 arranged between the inlet straight tube section 1 and the first edge straight tube section 3 and used for communicating the inlet straight tube section 1 and the first edge straight tube section 3. The refrigerant enters the inlet straight pipe section 1 from the refrigerant inlet and flows to the first edge straight pipe section 3 through at least one first middle straight pipe section 6, and the first edge straight pipe section 3 is communicated with the second edge straight pipe section 4 through the first bend pipe section, so that the refrigerant flows to the outlet straight pipe section 2 through the second edge straight pipe section 4.
In this embodiment, the heat exchange tube further comprises at least one second intermediate straight tube section 7 disposed between the outlet straight tube section 2 and the second edge straight tube section 4 and used for communicating the outlet straight tube section 2 and the second edge straight tube section 4.
The first middle straight pipe section 6 is arranged between the inlet straight pipe section 1 and the first edge straight pipe section 3, and the second middle straight pipe section 7 is arranged between the outlet straight pipe section 2 and the second edge straight pipe section 4, so that the inlet straight pipe section 1 and the outlet straight pipe section 2 are positioned in or close to the middle of the tube bank of the single-row evaporator, the inlet straight pipe section 1 and the outlet straight pipe section 2 are favorably arranged at positions with high wind speed, and the single-row evaporator of the embodiment effectively utilizes the reheat transfer to enable the temperature between the inlet straight pipe section and the outlet straight pipe section to be more uniform.
As shown in fig. 3 and 4, the inlet straight tube section 1, the at least one first intermediate straight tube section 6 and the adjacent straight tube section of the first edge straight tube sections 3 are communicated with each other through a second bend section. The outlet straight pipe section 2, at least one second middle straight pipe section 7 and the adjacent straight pipe section in the second edge straight pipe section 4 are communicated through a third bend pipe section.
In particular, in this embodiment, the second bend section and the third bend section are U-bends. The size and type of the U-bend can be selected based on the distance between adjacent straight tube sections to be joined.
Preferably, in order to reduce the volume of the single-row evaporator to reduce the volume of the air conditioner indoor unit, the single-row evaporator is a bent-type evaporator. In the transverse direction of the straight pipe sections, the bent-type evaporator is provided with at least two bent sections with included angles between the bent sections.
Specifically, in this embodiment, as shown in fig. 4 and 5, the at least two bending sections include a first bending section a, a second bending section B, and a third bending section C, which are sequentially arranged.
As shown in fig. 2, a sealing strip 8 is disposed between the first bending section a and the second bending section B.
Preferably, the inlet straight tube section 1 and the outlet straight tube section 2 are provided on the same bend section. The inlet straight pipe section 1 and the outlet straight pipe section 2 are arranged on the same bending section, so that the distance between the inlet straight pipe section 1 and the outlet straight pipe section 2 is shorter, and the effect of heat transfer is better
As shown in fig. 4, in the present embodiment, the inlet straight tube section 1 and the outlet straight tube section 2 are both disposed on the second bend section B.
In an embodiment not shown in the drawings, the inlet straight tube section and the outlet straight tube section may also both be arranged on the second bend section or the third bend section.
The inlet straight tube section 1 and the outlet straight tube section 2 can also be arranged on different bending sections. For example, in the embodiment shown in fig. 7, the inlet straight tube section 1 is disposed on the third bent section C, and the outlet straight tube section 2 is disposed on the second bent section B. For another example, in the embodiment shown in fig. 8, the inlet straight tube section 1 is disposed on the second bending section B, and the outlet straight tube section 2 is disposed on the first bending section a. The inlet straight pipe section 1 and the outlet straight pipe section 2 are arranged adjacently to be beneficial to secondary heat transfer.
The invention also provides an air conditioner indoor unit provided with the single-row evaporator.
Preferably, in order to improve the effect of the reheat transfer, the inlet straight tube section and the outlet straight tube section of the single-row evaporator of the air conditioner indoor unit of the embodiment are arranged in a region where the wind speed of the single-row evaporator is the largest. At the moment, the wind speed of the area where the inlet straight pipe section and the outlet straight pipe section are located is the largest, so that the temperature between the inlet straight pipe section and the outlet straight pipe section can be more uniform by effectively utilizing the reheat transfer, and the superheat degree of the outlet straight pipe section is reduced.
For example, when the inlet straight tube section and the outlet straight tube section are provided at the first bending section, the air inlet may be provided toward the first bending section. When the inlet straight pipe section and the outlet straight pipe section are arranged on the second bending section, the air inlet can be arranged to face the second bending section. When the inlet straight pipe section and the outlet straight pipe section are arranged on the third bent section, the air inlet can be arranged to face the third bent section.
Preferably, the single row evaporator further comprises a plurality of fins arranged at intervals in the longitudinal direction of the plurality of straight tube sections. The fins are provided with through holes which are arranged corresponding to the straight tube sections, and the straight tube sections are inserted into the fins through the through holes. The arrangement of the fins increases the heat exchange area of the single-row evaporator, and the heat exchange effect is improved.
In addition, the perforations in the fins are typically formed by punching with a punch press. Because the punch press used in the production process is generally 2 steps or 4 steps, the number of the corresponding straight pipe sections on each bending section is an even number.
Specifically, in this embodiment, the heat exchange effect and the size requirement of the single-row evaporator are comprehensively considered, and as shown in fig. 6, each bent section of the single-row evaporator of this embodiment is provided with 4 straight pipe sections.
In the transverse direction of the plurality of straight tube sections, the fins are provided in the same direction as the portions corresponding to the first bending section, the second bending section, and the third bending section.
Preferably, the angle α between the first and second bending sections a and B is 60-80 °. The included angle beta between the second bending section B and the third bending section C is 130-160 degrees. When the contained angle between the section of bending sets up to above scope, the condensation on the fin relies on the effect of gravity to roll downwards and forms the water droplet, and then forms continuous water film. The formation of the water film enables condensation on the fins to flow more smoothly, so that the problem that the condensation blocks the fins is solved.
As shown in fig. 5, in the present embodiment, the angle α between the first and second bent sections a and B is set to 76 °. And the included angle beta between the second bending section B and the third bending section C is set to be 142 degrees. Experiments prove that when the three bending sections of the evaporator are arranged at the two angles, condensation on the fins forms the best water film effect.
Preferably, the position of the air inlet of the embodiment is set to be towards the area where the inlet straight pipe section is located, the air speed of the area is high, the flow of condensation is accelerated, and the condensation is further facilitated to roll downwards to form water drops so as to form a continuous water film.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims (5)

1. An air conditioner indoor unit comprises a single-row evaporator and is characterized in that the single-row evaporator comprises a heat exchange tube, the heat exchange tube comprises a plurality of straight tube sections which are arranged at intervals and arranged in a single row, the straight tube sections comprise a first edge straight tube section (3) and a second edge straight tube section (4) which are positioned at the edges, and a first bent tube section (5) which is used for connecting the first edge straight tube section (3) and the second edge straight tube section (4), the straight tube sections further comprise an inlet straight tube section (1) and an outlet straight tube section (2) which are positioned between the first edge straight tube section (3) and the second edge straight tube section (4) and are arranged adjacently, a refrigerant inlet is formed in the inlet straight tube section (1) and is communicated with the first edge straight tube section (3), the single-row evaporator is characterized in that a refrigerant outlet is formed in the outlet straight tube section (2) and is communicated with the second edge straight tube section (4), the refrigerant sequentially passes through the inlet straight tube section (1), the first edge straight tube section (3), the first bend section (5), the second edge straight tube section (4) and the outlet straight tube section (2) in the circulation direction of the refrigerant, the inlet straight tube section and the outlet straight tube section are arranged in the area with the largest wind speed of the single-row evaporator, the single-row evaporator further comprises a plurality of fins arranged at intervals in the longitudinal direction of the plurality of straight tube sections, through holes corresponding to the plurality of straight tube sections are formed in the fins, and the straight tube sections are inserted into the fins through the through holes, the utility model discloses a single-row evaporimeter, including a plurality of straight tube sections, fin and a plurality of bend section, including the first section of bending (A), the second section of bending (B) and the third section of bending (C) that set gradually, the fin with the part syntropy that at least two sections of bending correspond sets up on the transverse direction of a plurality of straight tube sections, at least two sections of bending are including the first section of bending (A), the second section of bending (B) and the third section of bending (C) that set gradually, first section of bending (A) with contained angle between the second section of bending (B) is 60-80, the second section of bending (B) with contained angle between the third section of bending (C) is 130-160.
2. An air-conditioning indoor unit according to claim 1, wherein the heat exchange pipe further comprises at least one first intermediate straight pipe section (6) provided between the inlet straight pipe section (1) and the first edge straight pipe section (3) for communicating the inlet straight pipe section (1) with the first edge straight pipe section (3); and/or the heat exchange tube further comprises at least one second middle straight tube section (7) which is arranged between the outlet straight tube section (2) and the second edge straight tube section (4) and is used for communicating the outlet straight tube section (2) with the second edge straight tube section (4).
3. An air-conditioning indoor unit according to claim 2, wherein the inlet straight tube section (1), the at least one first intermediate straight tube section (6) and adjacent ones of the first edge straight tube sections (3) are communicated with each other by a second bend section; and/or the outlet straight pipe section (2), the at least one second middle straight pipe section (7) and adjacent straight pipe sections in the second edge straight pipe sections (4) are communicated through a third bend pipe section.
4. An air-conditioning indoor unit according to claim 1, wherein the inlet straight tube section (1) and the outlet straight tube section (2) are provided on the same bent section; or the inlet straight pipe section (1) and the outlet straight pipe section (2) are arranged on different bending sections.
5. An air conditioning indoor unit according to claim 4, characterized in that the inlet straight section (1) and the outlet straight section (2) are both provided on the second bend section (B).
CN201710092581.XA 2017-02-21 2017-02-21 Single-row evaporator and air conditioner indoor unit Active CN106678984B (en)

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CN1726140A (en) * 2002-12-17 2006-01-25 开利公司 Evaporator for air conditioning
JP2006177627A (en) * 2004-12-24 2006-07-06 Daikin Ind Ltd Heat exchanger and indoor unit of air conditioner with it
CN1952517A (en) * 2005-10-19 2007-04-25 海尔集团公司 Air-conditioning evaporator and its refrigerant shunting mode
CN103822408A (en) * 2012-11-19 2014-05-28 海尔集团公司 Multi-way distribution evaporator and air-conditioner indoor unit adopting same
CN106322730A (en) * 2016-09-20 2017-01-11 珠海格力电器股份有限公司 Indoor heat exchanger and air conditioner with indoor heat exchanger
CN206478751U (en) * 2017-02-21 2017-09-08 珠海格力电器股份有限公司 Single evaporator and indoor apparatus of air conditioner

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002340445A (en) * 1996-10-02 2002-11-27 Matsushita Electric Ind Co Ltd Finned heat exchanger
CN1726140A (en) * 2002-12-17 2006-01-25 开利公司 Evaporator for air conditioning
JP2006177627A (en) * 2004-12-24 2006-07-06 Daikin Ind Ltd Heat exchanger and indoor unit of air conditioner with it
CN1952517A (en) * 2005-10-19 2007-04-25 海尔集团公司 Air-conditioning evaporator and its refrigerant shunting mode
CN103822408A (en) * 2012-11-19 2014-05-28 海尔集团公司 Multi-way distribution evaporator and air-conditioner indoor unit adopting same
CN106322730A (en) * 2016-09-20 2017-01-11 珠海格力电器股份有限公司 Indoor heat exchanger and air conditioner with indoor heat exchanger
CN206478751U (en) * 2017-02-21 2017-09-08 珠海格力电器股份有限公司 Single evaporator and indoor apparatus of air conditioner

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