CN113007924A - Heat exchanger and air conditioner with same - Google Patents

Heat exchanger and air conditioner with same Download PDF

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Publication number
CN113007924A
CN113007924A CN202110283104.8A CN202110283104A CN113007924A CN 113007924 A CN113007924 A CN 113007924A CN 202110283104 A CN202110283104 A CN 202110283104A CN 113007924 A CN113007924 A CN 113007924A
Authority
CN
China
Prior art keywords
pipe
heat exchanger
connecting pipe
liquid collecting
head end
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110283104.8A
Other languages
Chinese (zh)
Inventor
吴迎文
王凯
杨瑞琦
康宁
马腾飞
王鹏恩
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202110283104.8A priority Critical patent/CN113007924A/en
Publication of CN113007924A publication Critical patent/CN113007924A/en
Priority to PCT/CN2021/127975 priority patent/WO2022193675A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Abstract

The invention provides a heat exchanger and an air conditioner with the same. The heat exchanger includes collector tube, gas collecting pipe, respectively with the flat pipe of collector tube and gas collecting pipe intercommunication, the heat exchanger still includes: the connecting pipe, connecting pipe and collector tube intercommunication, the head end of connecting pipe runs through the collector tube and stretches out to the outside of collector tube, and the head end of connecting pipe is provided with the first sealed lid that is used for sealing the port of this head end. The refrigerant can be sprayed into the liquid collecting pipe through the connecting pipe, so that the sprayed refrigerant can reach the flat pipe with a higher position in the liquid collecting pipe, and the refrigerant is distributed more uniformly. Besides, the head end of the connecting pipe penetrates through the liquid collecting pipe and then extends out of the liquid collecting pipe, the head end of the connecting pipe is sealed, the refrigerant can be prevented from leaking from the joint of the liquid collecting pipe and the connecting pipe, and the structure of the connecting pipe is stable.

Description

Heat exchanger and air conditioner with same
Technical Field
The invention relates to the technical field of refrigeration, in particular to a heat exchanger and an air conditioner with the same.
Background
The micro-channel heat exchanger is a novel efficient heat exchanger and has the advantages of high heat transfer efficiency, small volume, light weight, small filling amount and the like.
However, in the conventional heat exchanger, the liquid collecting pipe is usually vertically arranged, when the vertically arranged microchannel heat exchanger is used as an evaporator, a refrigerant entering from an inlet of the evaporator is generally in a gas-liquid two-phase state, the refrigerant is affected by gravity to generate a certain degree of stratification, and refrigerant gas is easily gathered at the upper part of the liquid collecting pipe; refrigerant liquid is easily gathered at the lower part of the liquid collecting pipe, the uneven distribution of the refrigerant inside the liquid collecting pipe can cause the refrigerant flow difference entering each flat pipe to be very obvious, and then the heat exchange performance of the heat exchanger is poor.
Disclosure of Invention
The invention mainly aims to provide a heat exchanger and an air conditioner with the same, and aims to solve the problem that in the prior art, the heat exchanger has poor heat exchange performance due to uneven distribution of refrigerants in the heat exchanger.
In order to achieve the above object, according to an aspect of the present invention, there is provided a heat exchanger, including a liquid collecting pipe, a gas collecting pipe, and flat pipes respectively communicated with the liquid collecting pipe and the gas collecting pipe, the heat exchanger further including: the connecting pipe, connecting pipe and collector tube intercommunication, the head end of connecting pipe runs through the collector tube and stretches out to the outside of collector tube, and the head end of connecting pipe is provided with the first sealed lid that is used for sealing the port of this head end.
Furthermore, the pipe section of the connecting pipe, which is positioned inside the liquid collecting pipe, is provided with a jet hole, and the connecting pipe is communicated with the liquid collecting pipe through the jet hole.
Further, the shape of the injection hole is circular; the inner diameter of the injection hole ranges from 0.1mm to 5 mm.
Furthermore, the hole center line of the injection hole and the center line of the liquid collecting pipe form a preset included angle, and the preset included angle is larger than or equal to 0 degrees and smaller than or equal to 90 degrees.
Further, the value range of the shortest distance between the end face of the head end of the connecting pipe and the outer side wall of the liquid collecting pipe is 0mm to 50 mm.
Furthermore, the plurality of injection holes comprise a first injection hole, and the first injection hole is closest to the head end of the connecting pipe compared with other injection holes; the first end of the flat pipe extends into the liquid collecting pipe; the distance between the first end of the flat pipe and the plane where the end face of the head end of the connecting pipe is located is smaller than or equal to the distance between the hole center line of the first injection hole and the plane where the end face of the head end of the connecting pipe is located.
Further, the heat exchanger still includes: the baffle assembly is arranged in the liquid collecting pipe and divides the liquid collecting pipe into a plurality of closed liquid separating cavities; wherein, all wear to be equipped with connecting pipe and flat pipe in every divides the liquid cavity.
The baffle plate assembly comprises a plurality of baffle plates which are arranged at intervals along the extension direction of the liquid collecting pipe so as to separate the liquid collecting pipe into a plurality of liquid separating cavities; the connecting pipes in each liquid separating cavity are positioned below the flat pipes in the liquid separating cavity.
Furthermore, the connecting pipe is connected with the liquid collecting pipe through welding; and/or at least part of the first sealing cover is plugged in the nozzle of the head end of the corresponding connecting pipe.
According to another aspect of the present invention, there is provided an air conditioner including: the heat exchanger is the heat exchanger.
By applying the technical scheme of the invention, the refrigerant can be sprayed into the liquid collecting pipe through the connecting pipe, so that the sprayed refrigerant can reach the flat pipe at a higher position in the liquid collecting pipe, and the refrigerant is distributed more uniformly. Besides, the head end of the connecting pipe penetrates through the liquid collecting pipe and then extends out of the liquid collecting pipe, the head end of the connecting pipe is sealed, the refrigerant can be prevented from leaking from the joint of the liquid collecting pipe and the connecting pipe, and the structure of the connecting pipe is stable.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic structural diagram of one embodiment of a heat exchanger according to the present invention;
FIG. 2 is a schematic structural diagram of the connection of a liquid collecting pipe with a partition plate, a connecting pipe and a flat pipe in the heat exchanger according to the invention;
FIG. 3 is a schematic view showing a structure in which a header pipe is connected to a connection pipe in a heat exchanger according to the present invention;
FIG. 4 shows a side view of one embodiment of a header in a heat exchanger according to the present invention;
FIG. 5 shows a side view of another embodiment of a header in a heat exchanger according to the present invention;
FIG. 6 shows a side view of another embodiment of a header in a heat exchanger according to the present invention; and
FIG. 7 shows a side view of another embodiment of a header in a heat exchanger according to the present invention.
Wherein the figures include the following reference numerals:
10. a heat exchanger;
110. a liquid collecting pipe; 111. a second sealing cover; 112. a first opening; 113. a second opening;
120. a gas collecting pipe; 121. connecting holes;
130. flat tubes; 131. a first end; 132. a second end;
140. a fin;
150. a connecting pipe; 151. a head end; 152. a first sealing cover; 153. an injection hole; 154. a third opening;
160. a partition plate; 170. a liquid separation cavity.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Fig. 1 shows a schematic structural view of one embodiment of a heat exchanger 10 according to the present invention. Referring to fig. 1, the heat exchanger 10 includes a header 110, a header 120, flat tubes 130, and connection tubes 150.
In some embodiments, both ends of the sump 110 are respectively provided with second sealing caps 111 to seal the ends of the sump 110 with the second sealing caps 111. At least a portion of the second sealing cap 111 is inserted into the openings of both ends of the corresponding liquid collecting tube 110.
The flat tubes 130 are respectively communicated with the liquid collecting tube 110 and the gas collecting tube 120.
The connection pipe 150 communicates with the sump 110. The refrigerant can be sprayed into the header 110 through the connecting pipe 150, so that the sprayed refrigerant can reach the flat pipe 130 with a higher position in the header 110, and the refrigerant distribution is more uniform.
Head end 151 of connection pipe 150 extends to the outside of header pipe 110 after penetrating header pipe 110, and head end 151 of connection pipe 150 is provided with first sealing cover 152 for sealing the port of head end 151. Head end 151 of connecting pipe 150 runs through collector pipe 110 and then stretches out to the outside of collector pipe 110 and head end 151 sets up sealedly, can avoid the refrigerant to reveal from the junction of collector pipe 110 and connecting pipe 150, and connecting pipe 150's structure is comparatively stable moreover.
In some embodiments, at least a portion of first seal cap 152 is inserted within the mouth of head end 151 of a corresponding connecting tube 150.
Fig. 2 shows a schematic structural diagram of the connection of the header 110 with the partition 160, the connecting pipe 150 and the flat pipe 130 in the heat exchanger 10 according to the present invention. Referring to fig. 2, the pipe section of the connection pipe 150 located inside the header 110 is opened with an injection hole 153, and the connection pipe 150 is communicated with the header 110 through the injection hole 153. That is, the refrigerant introduced into the connection pipe 150 may be introduced into the header 110 through the injection hole 153. The shape of the injection hole 153 may be circular, polygonal, or the like without affecting the shape of the refrigerant injected from the injection hole 153.
In some embodiments, the shape of the injection hole 153 may be circular. The inner diameter of the injection hole 153 ranges from 0.1mm to 5 mm. The aperture of the injection hole 153 is related to the mass flow rate of the refrigerant, and when the mass flow rate of the refrigerant is larger, the aperture is larger; the aperture of the injection hole 153 is related to the dryness of the refrigerant, and when the dryness of the refrigerant is larger, the aperture is larger; the aperture of the injection holes 153 is related to the number of flat tubes in a single liquid separation cavity 170, and the larger the number of flat tubes in a single liquid separation cavity 170, the smaller the aperture. In view of the above-described influence, the inner diameter of the injection hole 153 may preferably be 3 mm.
The hole center line of the injection hole 153 is disposed at a predetermined angle to the center line of the header pipe 110. The predetermined angle is greater than or equal to 0 ° and less than or equal to 90 °, that is, the direction in which the refrigerant such as the header pipe 110 is injected from the injection hole 153 is upward.
The partition 160 assembly includes a plurality of partitions 160, and the plurality of partitions 160 are spaced along the extending direction of the header 110 to partition the header 110 into a plurality of separating chambers 170.
The connecting pipes 150 in each liquid separating cavity 170 are positioned below the flat pipes 130 in the liquid separating cavity 170, so that the refrigerant can reach the flat pipes 130 with higher positions, and the refrigerant is uniformly distributed. That is, when the heat exchanger 10 is vertically placed, a connecting pipe 150 and a flat pipe 130 penetrate through a liquid separating cavity 170, and the connecting plate is located below the flat pipe 130; when one connecting pipe 150 and a plurality of flat pipes 130 penetrate through one liquid separation cavity 170, the connecting pipe 150 is positioned below all the flat pipes 130; when a plurality of connecting pipes 150 and a plurality of flat pipes 130 penetrate through one liquid-separating cavity 170, one connecting pipe 150 is located below all the flat pipes 130.
In some embodiments, the predetermined angle may be equal to 0 °, and a hole center line of the injection hole 153 and a center line of the header pipe 110 are disposed in parallel, that is, a main flow direction of the refrigerant injected from the injection hole 153 is parallel to the center line of the header pipe 110.
Referring to fig. 1, the heat exchanger 10 further includes fins 140 disposed between the flat tubes 130.
The shortest distance between the end surface of the head end 151 of the connection pipe 150 and the outer sidewall of the collector pipe 110 ranges from 0mm to 50 mm. That is, the length of the tube section of the connection tube 150 located outside the header 110 near the fins 140 ranges from 0mm to 50 mm. The shortest distance between the end surface of the head end 151 of the connection pipe 150 and the outer sidewall of the liquid collecting tube 110 affects the number of the fins 140, and the greater the shortest distance between the end surface of the head end 151 of the connection pipe 150 and the outer sidewall of the liquid collecting tube 110, the smaller the number of the fins, and the lower the heat exchange efficiency of the air conditioner using the heat exchanger.
In some embodiments, the plurality of injection holes 153 include a first injection hole 153, and the first injection hole 153 is closest to the head end 151 of the connection pipe 150 compared to the other injection holes 153. The first end 131 of the flat tube 130 penetrates through the liquid collecting tube 110 and then extends into the liquid collecting tube 110, and the second end 132 of the flat tube 130 penetrates through the gas collecting tube 120 and then extends into the gas collecting tube 120. The distance between the first end 131 of the flat tube 130 and the plane on which the end surface of the head end 151 of the connection pipe 150 is located is smaller than or equal to the distance between the hole center line of the first injection hole 153 and the plane on which the end surface of the head end 151 of the connection pipe 150 is located. That is to say, the first end 131 of the flat tube 130 and the hole center line of the first injection hole 153 are staggered, so as to prevent the refrigerant from being blocked by the flat tube 130 and being unable to reach the flat tube 130 with a higher position.
Fig. 3 shows a schematic structural view of the connection of the header pipe 110 and the connection pipe 150 in the heat exchanger 10 according to the present invention. Referring to fig. 3, the liquid collecting pipe 110 is provided with a plurality of second openings 113, and the first ends 131 of the flat pipes 130 extend into the liquid collecting pipe 110 through the second openings 113 to communicate with the liquid collecting pipe 110. The second openings 113 are provided in one-to-one correspondence with the flat tubes 130. That is, the number of the second openings 113 is equal to the number of the flat tubes 130.
The heat exchanger 10 also includes a baffle 160 assembly.
The partition plate 160 is disposed in the liquid collecting pipe 110, and the partition plate 160 partitions the liquid collecting pipe 110 to form a plurality of sealed liquid separating cavities 170, so that refrigerants ejected from the liquid separating cavities 170 cannot interfere with each other and are stably ejected. In order to distribute the refrigerant uniformly, the length of each distributing cavity 170 is equal.
Each liquid-separating cavity 170 is internally provided with a connecting pipe 150 and a flat pipe 130.
In some embodiments, 1 to 8 flat tubes 130 may be disposed in each liquid-separating cavity 170, and considering the volume of the liquid-separating cavity 170 and the distribution of the refrigerant, 4 flat tubes are preferably disposed in each liquid-separating cavity 170.
Referring to fig. 3, the liquid collecting tube 110 is provided with a plurality of first openings 112, and the partition 160 extends into the liquid collecting tube 110 through the first openings 112 to divide the liquid collecting tube 110 into a plurality of closed leaf-dividing cavities. The first openings 112 are provided in one-to-one correspondence with the partitions 160. That is, the number of the first openings 112 and the number of the partitions 160 are equal.
In some embodiments, the connection tube 150 is connected to the header tube 110 by welding. The connection between the connecting pipe 150 and the liquid collecting pipe 110 is firm and stable, so that the sealing performance between the connecting pipe 150 and the liquid collecting pipe 110 is better, the leakage of the refrigerant can be effectively avoided, and the reliability of the heat exchanger 10 is improved.
In some embodiments, the connecting tube 150 and the liquid collecting tube 110 may be an integral member, which can effectively prevent the refrigerant from leaking.
The air conditioner comprises a heat exchanger 10 and an air conditioner indoor unit, wherein the heat exchanger 10 exchanges heat of air flow entering the air conditioner indoor unit, and then the heat exchanged air flow is sent into the environment so as to adjust the environment temperature. The heat exchanger 10 is the heat exchanger 10 in the above embodiment.
When the heat exchanger 10 is used as an evaporator, the air conditioner is in a refrigerating state, and a gas-liquid two-phase refrigerant enters the evaporator to be gasified and absorb heat, so that the aim of refrigerating is fulfilled. The refrigerant enters the connecting pipe 150, enters the liquid collecting pipe 110 through the injection hole 153, enters the gas collecting pipe 120 through the flat pipe 130, and finally leaves the evaporator from the connecting hole 121 on the gas collecting pipe 120.
When the heat exchanger 10 is used as a condenser, the air conditioner is in a heating state, and gaseous refrigerant is liquefied and releases heat after entering the condenser, so that the purpose of heating is achieved. The refrigerant enters the gas collecting pipe 120 through the connecting hole 121, enters the liquid collecting pipe 110 through the flat pipe 130, and finally leaves the condenser through the injection hole 153 on the liquid collecting pipe 110.
In some embodiments, the header 110 defines a third opening 154, and the connection pipe 150 extends through the header 110 through the third opening 154.
FIG. 4 shows a side view of one embodiment of the header 110 in the heat exchanger 10 according to the present invention. Referring to fig. 4, the third opening 154 may have a circular shape on a projection plane parallel to the head end 151 of the connection pipe 150. That is, the nozzle shape of the connection pipe 150 may be circular.
FIG. 5 shows a side view of another embodiment of the header 110 in the heat exchanger 10 according to the present invention. Referring to fig. 5, the third opening 154 may have an elliptical shape on a projection plane parallel to the head end 151 of the connection pipe 150 so as to control the injection direction of the injection holes 153 on the connection pipe 150. That is, the nozzle shape of the connection pipe 150 may be an ellipse.
FIG. 6 shows a side view of another embodiment of a header 110 in a heat exchanger 10 according to the present invention. Referring to fig. 6, the third opening 154 may be triangular in shape on a projection plane parallel to the head end 151 of the connection pipe 150 so as to control the injection direction of the injection holes 153 on the connection pipe 150. That is, the nozzle shape of the connection pipe 150 may be triangular.
FIG. 7 shows a side view of another embodiment of a header 110 in a heat exchanger 10 according to the present invention. Referring to fig. 7, the third opening 154 may have a quadrangular shape on a projection plane parallel to the head end 151 of the connection pipe 150 in order to control the injection direction of the injection holes 153 on the connection pipe 150. That is, the nozzle shape of the connection pipe 150 may be a quadrangle.
In some embodiments, the third opening 154 may have a polygonal shape on a projection plane parallel to the head end 151 of the connection pipe 150. That is, the nozzle shape of the connection pipe 150 may be a polygon.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the refrigerant can be sprayed into the header 110 through the connecting pipe 150, so that the sprayed refrigerant can reach the flat pipe 130 with a higher position in the header 110, and the refrigerant distribution is more uniform. In addition, the head end 151 of the connecting pipe 150 penetrates through the liquid collecting pipe 110 and then extends out of the liquid collecting pipe 110, the head end 151 is arranged in a sealing mode, the refrigerant can be prevented from leaking from the joint of the liquid collecting pipe 110 and the connecting pipe 150, and the structure of the connecting pipe 150 is stable.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "first," "second," "third," "fourth," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements to be referred to must have specific orientations, be constructed in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In the description herein, reference to the term "some embodiments," or "other embodiments," or "in a first embodiment," or "in a second embodiment," or "in a third embodiment," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. And the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a heat exchanger, includes collector tube (110), gas collecting pipe (120), respectively with collector tube (110) and flat pipe (130) of gas collecting pipe (120) intercommunication, its characterized in that, the heat exchanger still includes:
the connecting pipe (150) is communicated with the liquid collecting pipe (110), the head end (151) of the connecting pipe (150) penetrates through the liquid collecting pipe (110) and then extends out of the liquid collecting pipe (110), and a first sealing cover (152) used for sealing the port of the head end (151) is arranged at the head end (151) of the connecting pipe (150).
2. The heat exchanger of claim 1,
the connecting pipe (150) is positioned on the pipe section in the liquid collecting pipe (110) and is provided with an injection hole (153), and the connecting pipe (150) is communicated with the liquid collecting pipe (110) through the injection hole (153).
3. The heat exchanger of claim 2,
the injection hole (153) is circular in shape;
the inner diameter of the injection hole (153) ranges from 0.1mm to 5 mm.
4. The heat exchanger of claim 2,
the hole center line of the injection hole (153) and the center line of the liquid collecting pipe (110) form a preset included angle, and the preset included angle is larger than or equal to 0 degrees and smaller than or equal to 90 degrees.
5. The heat exchanger of claim 1,
the value range of the shortest distance between the end surface of the head end (151) of the connecting pipe (150) and the outer side wall of the liquid collecting pipe (110) is 0mm to 50 mm.
6. The heat exchanger of claim 2,
the plurality of injection holes (153) include a first injection hole (153), and the first injection hole (153) is closest to the head end (151) of the connection pipe (150) than the other injection holes (153);
the first end (131) of the flat tube (130) extends into the liquid collecting tube (110);
the distance between the first end (131) of the flat pipe (130) and the plane where the end face of the head end (151) of the connecting pipe (150) is located is smaller than or equal to the distance between the hole center line of the first injection hole (153) and the plane where the end face of the head end (151) of the connecting pipe (150) is located.
7. The heat exchanger of claim 1, further comprising:
the baffle assembly is arranged in the liquid collecting pipe (110), and the baffle assembly separates the liquid collecting pipe (110) to form a plurality of closed liquid separating cavities (170);
the connecting pipe (150) and the flat pipe (130) penetrate through each liquid separating cavity (170).
8. The heat exchanger of claim 7,
the baffle assembly comprises a plurality of baffles (160), and the baffles (160) are arranged at intervals along the extension direction of the header pipe (110) to divide the header pipe (110) into a plurality of liquid separation cavities (170);
the connecting pipe (150) in each liquid separating cavity (170) is positioned below the flat pipe (130) in the liquid separating cavity (170).
9. The heat exchanger of claim 1,
the connecting pipe (150) is connected with the liquid collecting pipe (110) through welding; and/or
At least part of the first sealing cover (152) is plugged into the mouth of the head end (151) of the corresponding connecting pipe (150).
10. An air conditioner, comprising:
a heat exchanger (10), the heat exchanger (10) being a heat exchanger according to any one of claims 1 to 9.
CN202110283104.8A 2021-03-16 2021-03-16 Heat exchanger and air conditioner with same Pending CN113007924A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202110283104.8A CN113007924A (en) 2021-03-16 2021-03-16 Heat exchanger and air conditioner with same
PCT/CN2021/127975 WO2022193675A1 (en) 2021-03-16 2021-11-01 Heat exchanger and air conditioner having same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110283104.8A CN113007924A (en) 2021-03-16 2021-03-16 Heat exchanger and air conditioner with same

Publications (1)

Publication Number Publication Date
CN113007924A true CN113007924A (en) 2021-06-22

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WO (1) WO2022193675A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022193675A1 (en) * 2021-03-16 2022-09-22 珠海格力电器股份有限公司 Heat exchanger and air conditioner having same

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