CN210600616U - Three way connection, heat exchanger and air conditioner - Google Patents
Three way connection, heat exchanger and air conditioner Download PDFInfo
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- CN210600616U CN210600616U CN201921676122.7U CN201921676122U CN210600616U CN 210600616 U CN210600616 U CN 210600616U CN 201921676122 U CN201921676122 U CN 201921676122U CN 210600616 U CN210600616 U CN 210600616U
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- hole
- heat exchanger
- pipe
- air conditioner
- connects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
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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
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/26—Refrigerant piping
- F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The utility model discloses a three way connection, heat exchanger and air conditioner, three way connection are equipped with first hole, second and connect hole, third to connect the hole and communicate first hole, second and connect the runner that the hole was connected to hole and third, and the first hole that connects the hole is unanimous with the hole depth direction that the second connects the hole, and the hole depth direction that the third connects the hole is the contained angle with the first plane that connects the hole depth direction place that connects the hole and second to connect the hole. The first connecting hole and the second connecting hole of the three-way joint can be fixedly communicated with the heat exchanger body through automatic welding, so that the times of manual welding in the production process of the air conditioner are reduced, and the production efficiency is improved; meanwhile, the pipeline of the heat exchange system of the air conditioner is simplified; in addition, the occupied space of the pipeline system can be reduced, the overall structure of the pipeline system is more compact, the bending of the refrigerant pipe can be reduced, the flowing of the refrigerant is smoother, and the working stability of the air conditioner is improved.
Description
Technical Field
The utility model relates to an air conditioner technical field, in particular to three way connection, heat exchanger and air conditioner.
Background
The air conditioner mainly comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor, a controller and a pipeline system. The quality of the piping system directly affects the performance and manufacturing cost of the air conditioner. The existing air-conditioning heat exchanger has more two branches, and a refrigerant pipe is communicated with the heat exchanger through a three-way pipe fitting, but the connection mode can cause more pipe usage and inconvenient welding, thus causing high cost and low processing efficiency of a pipeline system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a three way connection aims at solving the technical problem who how to reduce improvement air conditioner production efficiency.
In order to realize the above-mentioned purpose, the utility model provides a three way connection is applied to air conditioner heat exchanger, a serial communication port, three way connection is equipped with first hole, second and connects hole, third and connect hole and intercommunication first hole, second connect the runner that hole and third connect the hole, first hole and second connect the hole depth direction unanimous that the hole, the hole depth direction that the hole was connected to the third, with the first plane that connects the hole and the hole depth direction place that the second connects the hole is the contained angle.
Optionally, the hole depth direction of the third connection hole is perpendicular to the plane of the hole depth directions of the first connection hole and the second connection hole.
Optionally, the three-way joint includes an elbow and a straight pipe connected to the elbow, the first connection hole and the second connection hole are formed in two ends of the elbow, and the third connection hole is formed in one end of the straight pipe far away from the elbow.
Optionally, the straight pipe includes a first pipe section connected to the bent pipe, and a second pipe section connected to the first pipe section, the third connection hole is formed in the second pipe section, and an inner diameter of the second pipe section is larger than an inner diameter of the first pipe section.
The utility model also provides a heat exchanger, which comprises a heat exchanger body and a three-way joint, wherein the heat exchanger body is provided with at least two refrigerant flow paths; the three-way joint is provided with a first connecting hole, a second connecting hole, a third connecting hole and a flow channel for communicating the first connecting hole, the second connecting hole and the third connecting hole, the hole depth directions of the first connecting hole and the second connecting hole are consistent, and the hole depth direction of the third connecting hole forms an included angle with a plane where the hole depth directions of the first connecting hole and the second connecting hole are located; the first connecting hole and the second connecting hole of the three-way joint are respectively communicated with the inlets or the outlets of the two refrigerant flow paths, and the third connecting hole is used for being communicated with the refrigerant pipe.
Optionally, the tee fitting is welded to the heat exchanger body.
Optionally, the heat exchanger body is an indoor heat exchanger or an outdoor heat exchanger.
The utility model also provides an air conditioner, reach as above including the refrigerant pipe the heat exchanger, wherein, the refrigerant pipe with the three-way connection's of heat exchanger third connects the hole intercommunication.
Optionally, the refrigerant pipe is inserted into a third connection hole of the three-way joint of the heat exchanger.
Optionally, the refrigerant pipe is fixedly connected with a heat exchanger body of the heat exchanger.
Optionally, a protection block is sleeved at a position where the refrigerant pipe is fixedly connected with the heat exchanger body of the heat exchanger.
The first connecting hole and the second connecting hole of the three-way joint can be fixedly communicated with the heat exchanger body through automatic welding, so that the times of manual welding in the production process of the air conditioner are reduced, and the production efficiency is improved; meanwhile, a tee joint is used for replacing a tee pipe fitting, so that the occupied volume is reduced, and the pipeline of a heat exchange system of the air conditioner is simplified; in addition, the hole depth direction that the third connects the hole is the contained angle with the first plane that connects the hole depth direction place that connects the hole and the second, can reduce the refrigerant pipe that meets the hole with the third and connect the hole at the ascending extension length in the hole depth direction of first hole to reduce the occupation space of pipe-line system in this direction, make pipe-line system's overall structure compacter, and can also reduce the buckling of refrigerant pipe, make the flow of refrigerant more smooth and easy, in order to improve the stability of air conditioner work.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic projection diagram of an embodiment of a three-way joint according to the present invention;
FIG. 2 is a schematic projection view of another embodiment of the tee joint of the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the heat exchanger of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) | Reference numerals | Name (R) |
| 11 | First connecting |
12 | Second connecting |
13 | Third connecting |
| 14 | |
15 | Bent |
16 | |
| 161 | |
162 | |
20 | |
| 30 | |
40 | Protection block |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a three way connection is applied to air conditioner heat exchanger, and air conditioner heat exchanger can be indoor heat exchanger, also can be outdoor heat exchanger, does not do the restriction here.
In the embodiment of the present invention, as shown in fig. 1 to 3, the three-way joint is provided with a first hole 11, a second hole 12, a third hole 13 and a flow channel 14 communicating the first hole 11, the second hole 12 and the third hole 13, wherein the first hole 11 and the second hole 12 have the same hole depth direction, and the third hole 13 has the same hole depth direction, and the plane where the hole depth direction of the first hole 11 and the second hole 12 is located is an included angle.
In this embodiment, the air conditioner heat exchanger has two refrigerant flow paths, each having an inlet and an outlet. The shape of the three-way joint is not limited, and only the flow channel 14 which is communicated with the first connecting hole 11, the second connecting hole 12 and the third connecting hole 13 is needed. The first connection hole 11 and the second connection hole 12 are used for being in butt joint communication with two inlets or two outlets of a refrigerant flow path of the air conditioner heat exchanger, and the third connection hole 13 is used for being communicated with the refrigerant pipe 20. The refrigerant flows into the flow channel 14 from the refrigerant pipe 20 through the third connecting hole 13, and then flows into the refrigerant flow path through the first connecting hole 11 and the second connecting hole 12; or the refrigerant flows from the refrigerant flow path into the refrigerant flow path through the first and second contact holes 11 and 12 and then flows into the refrigerant pipe 20 through the third contact hole 13.
The tee joint is small in size, and compared with a tee pipe fitting, the circuit structure of a heat exchange system can be simplified, and occupied space is reduced. In addition, the tee joint can be fixedly communicated with the air conditioner heat exchanger in an automatic welding mode on a production line, so that the number of times of manual welding in the assembling process of the air conditioner is reduced, and the production efficiency of the air conditioner is improved.
The depth directions of the first connecting hole 11 and the second connecting hole 12 can be regarded as two central axes respectively extending along the opening directions of the first connecting hole 11 and the second connecting hole 12, and the two central axes are positioned on a common plane; the depth direction of the third connecting hole 13 is arranged to form an angle with the common plane, i.e. the central axis of the third connecting hole 13 is not located on the common plane, but is perpendicular to the plane or forms an inclined angle with the plane. The hole depth direction of the third connecting hole 13 is not located on the plane where the hole depth directions of the first connecting hole 11 and the second connecting hole 12 are located, so that the size of the tee joint in the hole depth direction of the first connecting hole 11 and the second connecting hole 12 can be reduced, and the whole size of the heat exchange pipeline system is more reasonable. In addition, the whole refrigerant pipe 20 extends along the hole depth direction perpendicular to the first connecting hole 11 and the second connecting hole 12, so the hole depth direction of the third connecting hole 13 can be consistent with the whole direction of the refrigerant pipe 20, so as to reduce the bending of the refrigerant pipe 20, avoid obstructing the refrigerant flow channel 14, and make the work of the air conditioner heat exchanger more stable.
The first connecting hole 11 and the second connecting hole 12 of the three-way joint of the utility model can realize the fixed communication with the heat exchanger body 30 through the automatic welding, thereby reducing the times of manual welding in the production process of the air conditioner and improving the production efficiency; meanwhile, a tee joint is used for replacing a tee pipe fitting, so that the occupied volume is reduced, and the pipeline of a heat exchange system of the air conditioner is simplified; in addition, the hole depth direction that the third connects hole 13, with the first plane that connects the hole depth direction place that connects hole 11 and second hole 12 be the contained angle, can reduce the refrigerant pipe 20 that meets hole 13 with the third and connect the ascending extension length in the hole depth direction of hole 11 in first hole to reduce the occupation space of pipe-line system in this direction, make pipe-line system's overall structure compacter, and can also reduce the buckling of refrigerant pipe 20, make the flow of refrigerant more smooth and easy, in order to improve the stability of air conditioner work.
It should be noted that if the embodiments of the present invention are described with reference to "first", "second", etc., the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In one embodiment, as shown in fig. 2, the depth direction of the third connecting hole 13 is perpendicular to the plane of the depth directions of the first connecting hole 11 and the second connecting hole 12. In the present embodiment, the vertical relationship does not mean absolute 90 °, but there is a deviation within an allowable range. By setting the hole depth direction of the third connecting hole 13 to be perpendicular to the plane of the hole depth direction of the first connecting hole 11 and the second connecting hole 12, the size of the tee joint in the direction can be reduced to the maximum extent, the refrigerant pipe 20 can be kept to extend straightly, and the bending of the refrigerant pipe 20 is further reduced.
Specifically, as shown in fig. 1, the three-way joint includes an elbow 15 and a straight pipe 16 connected to the elbow 15, the first connection hole 11 and the second connection hole 12 are formed at both end portions of the elbow 15, and the third connection hole 13 is formed at an end of the straight pipe 16 away from the elbow 15. In this embodiment, the straight pipe 16 and the bent pipe 15 can be integrally formed, and the three-way joint can be made of copper material. The straight pipe 16 may be connected to the middle of the bent pipe 15 so that the flow paths from the third connection hole 13 to the first connection hole 11 and the second connection hole 12 are the same. By providing the three-way joint as the elbow pipe 15 and the straight pipe 16 connected to each other, the structural shape of the three-way joint can be simplified, and the shape of the flow passage 14 can be simplified, so that the occupied space can be reduced and the production can be facilitated.
In practical applications, as shown in fig. 2, the straight pipe 16 includes a first pipe segment 161 connected to the bent pipe 15, and a second pipe segment 162 connected to the first pipe segment 161, the third connection hole 13 is formed in the second pipe segment 162, and an inner diameter of the second pipe segment 162 is larger than an inner diameter of the first pipe segment 161. In this embodiment, a limiting step is formed between the first pipe segment 161 and the second pipe segment 162, and the second pipe segment 162 can be inserted by the refrigerant pipe 20, so that the connection between the refrigerant pipe 20 and the three-way joint is more stable; the limiting step is used for limiting the insertion length of the refrigerant pipe 20.
As shown in fig. 3, the utility model discloses still provide a heat exchanger, this heat exchanger includes heat exchanger body 30 and three way connection, and above-mentioned embodiment is referred to this three way connection's specific structure, because this heat exchanger has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The heat exchanger body 30 has at least two refrigerant flow paths; the first connection hole 11 and the second connection of the three-way connection are respectively communicated with the inlets or outlets of the two refrigerant flow paths, and the third connection hole 13 is used for being communicated with the refrigerant pipe 20.
Specifically, the three-way joint is welded with the heat exchanger body 30, so that the fixing process of the three-way joint and the heat exchanger body 30 is simpler and more convenient, the production efficiency of the heat exchanger is improved, and meanwhile, the three-way joint and the heat exchanger body 30 can be matched in a sealing mode. In practical applications, the heat exchanger body 30 may be an indoor heat exchanger or an outdoor heat exchanger; for example, the air conditioner has two heat exchangers, including an indoor heat exchanger and an outdoor heat exchanger, and the refrigerant pipe 20 communicates the two heat exchangers so that the refrigerant circulates between the two heat exchangers; the number of the three-way joints is four, wherein two three-way joints are respectively communicated with the inlet and the outlet of the refrigerant flow path of the indoor heat exchanger, and the other two three-way joints are respectively communicated with the inlet and the outlet of the refrigerant flow path of the outdoor heat exchanger.
The utility model discloses still provide an air conditioner, this air conditioner include refrigerant pipe 20 and heat exchanger, and the concrete structure of this heat exchanger refers to above-mentioned embodiment, because this air conditioner has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The refrigerant pipe 20 is communicated with a third connecting hole 13 of the three-way joint of the heat exchanger; specifically, refrigerant pipe 20 and three way connection accessible welded fastening to make refrigerant pipe 20 and three way connection's fixed process simple and convenient more, improve the assembly efficiency of air conditioner, can also realize three way connection and refrigerant pipe 20's sealed cooperation simultaneously.
In an embodiment, as shown in fig. 3, the refrigerant pipe 20 is inserted into the third connection hole 13 of the three-way joint of the heat exchanger. In the present embodiment, the refrigerant pipe 20 is inserted into the third connection hole 13, so that the refrigerant pipe 20 and the three-way connection are more stably connected; by combining the embodiment of welding the refrigerant pipe 20 and the three-way joint, the refrigerant pipe 20 inserted into the third connecting hole 13 facilitates manual welding of the refrigerant pipe 20 and the three-way joint, so as to improve the production efficiency.
Specifically, as shown in fig. 3, the refrigerant pipe 20 is fixedly connected to the heat exchanger body 30 of the heat exchanger. In this embodiment, the refrigerant flow route of heat exchanger body 30 is formed by the coil pipe that runs through in heat exchanger body 30, the crooked section protrusion in heat exchanger body 30's the lateral wall of coil pipe, refrigerant pipe 20 accessible bandage is fixed in the crooked section of coil pipe, in order to reduce refrigerant pipe 20 and heat exchanger body 30's relative vibrations, prevent that refrigerant pipe 20 from droing from three way connection in the transportation of air conditioner, also avoid refrigerant pipe 20 to cause to drag to three way connection simultaneously and lead to the three way connection to damage, the stability of air conditioner has been improved.
In practical application, as shown in fig. 3, a protection block 40 is sleeved on a portion where the refrigerant pipe 20 is fixedly connected with the heat exchanger body 30 of the heat exchanger. In this embodiment, the protection block 40 may be made of a rubber material to reduce the abrasion of the refrigerant pipe 20. The refrigerant pipe 20 is prevented from directly contacting the heat exchanger body 30 by the protection block 40, and the refrigerant pipe 20 can be effectively included, so that the overall stability of the air conditioner is improved.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (11)
1. The utility model provides a three way connection, is applied to air conditioner heat exchanger, its characterized in that, three way connection is equipped with first hole, second and connect hole, third and connects the runner that the first hole, second connect the hole and the third connects the hole, the hole depth direction that the first hole and second connect the hole is unanimous, the hole depth direction that the third connects the hole, with the first plane that connects the hole depth direction place that connects the hole and second and be the contained angle.
2. The three-way union of claim 1 wherein the depth of said third aperture is perpendicular to the plane of the depth of said first and second apertures.
3. The three-way joint according to claim 1, comprising an elbow pipe and a straight pipe connected to the elbow pipe, wherein the first and second connection holes are formed at both end portions of the elbow pipe, and the third connection hole is formed at an end of the straight pipe remote from the elbow pipe.
4. The three-way joint according to claim 3, wherein the straight pipe includes a first pipe segment connected to the bent pipe and a second pipe segment connected to the first pipe segment, the third connection hole being formed in the second pipe segment, and an inner diameter of the second pipe segment is larger than an inner diameter of the first pipe segment.
5. A heat exchanger, comprising:
the heat exchanger comprises a heat exchanger body, a heat exchanger body and a heat exchanger, wherein the heat exchanger body is provided with at least two refrigerant flow paths; and the number of the first and second groups,
the three-way joint according to any one of claims 1 to 4, wherein the first connection hole and the second connection hole of the three-way joint are respectively communicated with the inlets or outlets of the two refrigerant flow paths, and the third connection hole is used for being communicated with a refrigerant pipe.
6. The heat exchanger of claim 5, wherein the tee fitting is welded to the heat exchanger body.
7. The heat exchanger of claim 5, wherein the heat exchanger body is an indoor heat exchanger or an outdoor heat exchanger.
8. An air conditioner, characterized in that, comprising a refrigerant pipe and the heat exchanger as claimed in any one of claims 5 to 7, the refrigerant pipe is communicated with the third connection hole of the tee joint of the heat exchanger.
9. The air conditioner as claimed in claim 8, wherein the refrigerant pipe is inserted into a third connection hole of the tee joint of the heat exchanger.
10. The air conditioner as claimed in claim 8, wherein the refrigerant pipe is fixedly connected to a heat exchanger body of the heat exchanger.
11. The air conditioner as claimed in claim 10, wherein a protection block is provided at a portion where the refrigerant pipe is fixedly connected to the heat exchanger body of the heat exchanger.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676122.7U CN210600616U (en) | 2019-09-30 | 2019-09-30 | Three way connection, heat exchanger and air conditioner |
| PCT/CN2019/113409 WO2021062901A1 (en) | 2019-09-30 | 2019-10-25 | Tee connector, heat exchanger and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921676122.7U CN210600616U (en) | 2019-09-30 | 2019-09-30 | Three way connection, heat exchanger and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210600616U true CN210600616U (en) | 2020-05-22 |
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ID=70689866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921676122.7U Active CN210600616U (en) | 2019-09-30 | 2019-09-30 | Three way connection, heat exchanger and air conditioner |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210600616U (en) |
| WO (1) | WO2021062901A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3322615B2 (en) * | 1997-09-16 | 2002-09-09 | 三洋電機株式会社 | Heat exchanger and air conditioner provided with the heat exchanger |
| CN101608850B (en) * | 2008-06-19 | 2012-11-07 | 海尔集团公司 | Air conditioner condenser |
| CN206206868U (en) * | 2016-08-03 | 2017-05-31 | 浙江舜阳管件有限公司 | A kind of environment-protective water extrusion pressing type claw branch junction |
| CN206695423U (en) * | 2017-04-13 | 2017-12-01 | 广东美的暖通设备有限公司 | Air injection enthalpy-increasing device and air conditioner |
| CN206739686U (en) * | 2017-05-17 | 2017-12-12 | 珠海格力电器股份有限公司 | Evaporator and air conditioning equipment |
| CN109826776A (en) * | 2018-12-12 | 2019-05-31 | 珠海格力电器股份有限公司 | Damping fixing device of compressor and parallel compressor system |
| CN110220296A (en) * | 2019-03-06 | 2019-09-10 | 青岛海信日立空调系统有限公司 | A kind of heat exchanger and air conditioner |
-
2019
- 2019-09-30 CN CN201921676122.7U patent/CN210600616U/en active Active
- 2019-10-25 WO PCT/CN2019/113409 patent/WO2021062901A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2021062901A1 (en) | 2021-04-08 |
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