CN216282167U

CN216282167U - Outdoor machine of air conditioner

Info

Publication number: CN216282167U
Application number: CN202122964600.8U
Authority: CN
Inventors: 刘新华; 李林; 邹海如
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-12
Anticipated expiration: 2031-11-29

Abstract

The utility model provides an air conditioner outdoor unit, which comprises a condenser; and the electronic expansion valve is provided with an inlet pipe and an outlet pipe, filter screens are fixedly arranged in the inlet pipe and the outlet pipe, the inlet pipe is communicated with an outlet of the condenser, and the outlet pipe is communicated with a stop valve. According to the air conditioner outdoor unit, the filter screen is arranged in the inlet pipe and the outlet pipe of the electronic expansion valve, so that filter components are saved, the installation space of the electronic expansion valve in the air conditioner outdoor unit is increased, the problems of welding points and leakage of a refrigerant are reduced, the assembly cost and the material cost are reduced, and the production efficiency is improved.

Description

Outdoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of air conditioning, and particularly relates to an air conditioner outdoor unit.

Background

The electronic expansion valve assembly is adopted as a common throttling component of a household air conditioner at present. Because the throttle aperture of the electronic expansion valve is very small, a filter assembly must be added in front and at the back to prevent the aperture of the electronic expansion valve from being blocked.

Since the outdoor unit of the air conditioner has a smaller and smaller casing, in order to improve the utilization efficiency of the internal space of the outdoor unit of the air conditioner, the internal space of the outdoor unit of the air conditioner is not enough and is likely to collide with other components due to the adoption of the electronic expansion valve and the filter assembly. The mode that adopts electronic expansion valve and filter subassembly has the welding point many more, has the refrigerant easy leakage, leads to the problem of heat exchange efficiency low. Meanwhile, the cost of the filter assembly is high, the labor cost is high due to more welding points, and the assembly cost is easily increased.

The utility model is provided in view of the above.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. For this purpose,

the utility model provides an air conditioner outdoor unit, which is convenient for reducing component cost and improving the utilization efficiency of an outdoor space.

In order to achieve the above object, an embodiment of the present invention provides an outdoor unit of an air conditioner, including a condenser; and the electronic expansion valve is provided with an inlet pipe and an outlet pipe, filter screens are fixedly arranged in the inlet pipe and the outlet pipe, the inlet pipe is communicated with an outlet of the condenser, and the outlet pipe is communicated with a stop valve.

According to the air conditioner outdoor unit, the filter screen is arranged in the inlet pipe and the outlet pipe of the electronic expansion valve, so that filter components are saved, the installation space of the electronic expansion valve in the air conditioner outdoor unit is increased, the problems of welding points and leakage of a refrigerant are reduced, the assembly cost and the material cost are reduced, and the production efficiency is improved.

In addition, the outdoor unit of an air conditioner according to the above embodiment of the present invention may further have the following additional technical features:

in some embodiments of the present invention, concave points are disposed in the inlet pipe and the outlet pipe, the concave points on the inlet pipe are recessed toward the inside of the inlet pipe, the concave points on the outlet pipe are recessed toward the inside of the outlet pipe, and the concave points are used for limiting and fixing the filter screen.

In some embodiments of the present invention, the filter screen is provided in a three-dimensional structure having a circular table portion at one end and a cylindrical portion at the other end, and a diameter of a bottom surface of the cylindrical portion is larger than a diameter of a bottom surface of the circular table portion.

In some embodiments of the present invention, the cylindrical portion is clamped at the concave point to limit and fix the filter screen.

In some embodiments of the present invention, the filter screen is integrally formed with the electronic expansion valve, and the filter screen is embedded in the inlet pipe and/or the outlet pipe.

In some embodiments of the utility model, the shut-off valve is a two-way shut-off valve.

In some embodiments of the present invention, a first auxiliary pipe is connected between the inlet pipe and the outlet of the condenser, and the outlet pipe is fixedly connected to the stop valve by welding.

In some embodiments of the present invention, the inlet pipe and the outlet of the condenser are directly connected by welding, and a second auxiliary pipe is connected between the outlet pipe and the stop valve.

In some embodiments of the present invention, the electronic expansion valve further comprises a coil and a body, the inlet pipe and the outlet pipe are both connected to the body, and the coil is connected to a control panel.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 drawings without creative efforts.

Fig. 1 is a schematic view illustrating an assembly of a filter screen assembly of an outdoor unit of an air conditioner according to the related art;

fig. 2 is a first schematic structural diagram of an electronic expansion valve according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of an electronic expansion valve according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

FIG. 5 is a schematic diagram illustrating the connection between an electronic expansion valve and a first auxiliary pipe according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a connection between an electronic expansion valve and a second auxiliary pipe according to an embodiment of the present invention.

In the above figures:

1. an electronic expansion valve; 11. a coil; 12. a body; 13. an inlet pipe; 14. an outlet pipe; 141. concave points; 2. a filter screen; 21. a circular table portion; 22. a cylindrical portion; 3. a stop valve; 4. a first auxiliary pipe; 5. a second auxiliary pipe; 6. a screen assembly.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The air conditioner includes an air conditioner outdoor unit, which refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, and an air conditioner indoor unit, which includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit. The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a refrigerator in a cooling mode.

The indoor air conditioner is connected to an outdoor air conditioner installed in an outdoor space through a duct. The outdoor unit of the air conditioner may be provided with a compressor, an outdoor heat exchanger, an outdoor fan, an electronic expander, and the like of a refrigeration cycle, and the indoor unit of the air conditioner may be provided with an indoor heat exchanger and an indoor fan.

Referring to fig. 1 to 6, the outdoor unit of the air conditioner of the present embodiment includes a casing constituting an external appearance of the outdoor unit, an outdoor heat exchanger provided in the casing, and an electronic expansion valve 1. In this embodiment, the outdoor heat exchanger is used as a condenser, and the indoor heat exchanger is used as an evaporator.

The electronic expansion valve 1 comprises a coil 11, a body 12, a rotor, a stator, a valve needle, an inlet pipe 13 and an outlet pipe 14, wherein the rotor is connected with the valve needle and is used for controlling the opening size of the valve hole. The coil 11 is connected with a control panel, and after the coil 11 is electrified, the stator is used for converting electric energy into magnetic field energy so as to drive the rotor to rotate. The valve needle moves back and forth under the driving influence of the rotor, so that the flow is regulated. An inlet pipe 13 and an outlet pipe 14 are connected to the body 12.

The filter net 2 is fixedly arranged in the inlet pipe 13 and the outlet pipe 14, so that filter components are saved, and the installation space of the electronic expansion valve 1 in the outdoor unit of the air conditioner is increased. The saving of the filter screen assembly 6 reduces the connection points of the electronic expansion valve 1, reduces the risk of refrigerant leakage, reduces the assembly cost and the material cost, and improves the production efficiency.

The electronic expansion valve 1 generates a magnetic field by the coil 11 through current and acts on the valve needle to drive the valve needle to rotate, and when the positive and negative power signals of the coil 11 are changed, the electronic expansion valve 1 also opens, closes or changes the size of the opening and closing gap, thereby achieving the purpose of controlling the flow rate of refrigerant and the size of cold and heat in a system. When the valve needle is opened less, the refrigerant flow is smaller, and the refrigerating capacity is larger.

In this embodiment, the sieve is integrally provided inside the inlet pipe 13 and the outlet pipe 14. The concave points 141 are arranged in the inlet pipe 13 and the outlet pipe 14, the concave points 141 are arranged in an annular shape, the concave points 141 on the inlet pipe 13 are concave towards the inner part of the inlet pipe 13, the concave points 141 on the outlet pipe 14 are concave towards the inner part of the outlet pipe 14, so that the concave points 141 are provided with protrusions in the inner parts of the inlet pipe 13 and the outlet pipe 14, and the concave points 141 are convenient for limiting and fixing the filter screen 2.

The filter screen 2 is provided with a three-dimensional structure with a circular table part 21 at one end and a cylindrical part 22 at the other end, and the diameter of the bottom surface of the cylindrical part 22 is larger than that of the bottom surface of the circular table part 21, that is, the diameter of the bottom surface of the cylindrical part 22 is larger than the maximum diameter of the bottom surface of the circular table part 21, so that the cylindrical part 22 can be clamped by concave points 141 in the inlet pipe 13 and the outlet pipe 14, and the filter screen 2 is limited and fixed. The circular table portion 21 is disposed closer to the body 12 of the electronic expansion valve 1 than the cylindrical portion 22.

In some embodiments, the filter screen 2 is directly embedded in the inlet pipe 13 and/or the outlet pipe 14, so that the filter screen 2 and the electronic expansion valve 1 are integrally formed, which can also save filter components, thereby increasing the installation space of the electronic expansion valve 1 in the outdoor unit of the air conditioner. The saving of the filter screen assembly 6 reduces the connection points of the electronic expansion valve 1, reduces the risk of refrigerant leakage, reduces the assembly cost and the material cost, and improves the production efficiency.

In this embodiment, the inlet pipe 13 of the electronic expansion valve 1 communicates with the outlet of the condenser, and the outlet pipe 14 of the electronic expansion valve 1 communicates with the shutoff valve 3. Stop valve 3 is two-way stop valve 3, and stop valve 3 plays the effect of assembly connecting pipe for connect air conditioning indoor set and air condensing units.

The position of the two-way stop valve 3 is not consistent with the height of the outlet of the condenser due to the installation position of each component in the outdoor unit of the air conditioner. Therefore, the assembling scheme of the electronic expansion valve 1 of the present invention can be flexibly selected according to the actual assembling space of the outdoor unit.

In some embodiments, the junction between the outlet pipe 14 of the electronic expansion valve 1 and the stop valve 3 is fixedly connected by welding, the first auxiliary pipe 4 is connected between the inlet pipe 13 and the outlet of the condenser, and the positional relationship among the condenser, the electronic expansion valve 1 and the stop valve 3 is adapted by the first auxiliary pipe 4. The first auxiliary pipe 4 is connected to the inlet pipe 13 of the electronic expansion valve 1 by welding, and the first auxiliary pipe 4 is connected to the outlet of the condenser by welding. Compared with the air-conditioning outdoor unit in the prior art, an auxiliary piping between the filter screen assembly 6 and the outlet pipe 14 of the electronic expansion valve 1 can be omitted, and the installation space of the electronic expansion valve 1 in the air-conditioning outdoor unit is increased. Meanwhile, welding points are reduced, the risk of leakage of the refrigerant is reduced, labor cost required by welding is reduced, assembly cost and material cost are reduced, and production efficiency is improved.

In some embodiments, the connection between the inlet pipe 13 of the electronic expansion valve 1 and the outlet of the condenser is directly and fixedly connected by welding, the second auxiliary pipe 5 is connected between the outlet pipe 14 of the electronic expansion valve 1 and the stop valve 3, and the positional relationship among the condenser, the electronic expansion valve 1 and the stop valve 3 is adapted by the second auxiliary pipe 5. The second auxiliary pipe 5 is connected to the outlet pipe 14 of the electronic expansion valve 1 by welding, and the second auxiliary pipe 5 is connected to the inlet of the shutoff valve 3 by welding. Compared with the air conditioner outdoor unit in the prior art, an auxiliary piping between the filter screen assembly 6 and the outlet of the condenser can be omitted, and the installation space of the electronic expansion valve 1 in the air conditioner outdoor unit is increased. Meanwhile, welding points are reduced, the risk of leakage of the refrigerant is reduced, labor cost required by welding is reduced, assembly cost and material cost are reduced, and production efficiency is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An outdoor unit of an air conditioner, comprising:

a condenser; and

the electronic expansion valve is provided with an inlet pipe and an outlet pipe, filter screens are fixedly arranged in the inlet pipe and the outlet pipe, the inlet pipe is communicated with an outlet of the condenser, and the outlet pipe is communicated with a stop valve.

2. An outdoor unit of an air conditioner according to claim 1, wherein:

concave points are arranged in the inlet pipe and the outlet pipe, the concave points on the inlet pipe are sunken towards the interior of the inlet pipe, the concave points on the outlet pipe are sunken towards the interior of the outlet pipe, and the concave points are used for limiting and fixing the filter screen.

3. An outdoor unit of an air conditioner according to claim 2, wherein:

the filter screen is of a three-dimensional structure with one end being a circular table part and the other end being a cylindrical part, and the diameter of the bottom surface of the cylindrical part is larger than that of the bottom surface of the circular table part.

4. An outdoor unit of an air conditioner according to claim 3, wherein:

the cylindrical part is clamped at the concave point to limit and fix the filter screen.

5. An outdoor unit of an air conditioner according to claim 1, wherein:

the filter screen with electronic expansion valve integrated into one piece sets up, the filter screen is inlayed in the import pipe and/or in the outlet pipe.

6. An outdoor unit of an air conditioner according to claim 1, wherein:

the stop valve is a two-way stop valve.

7. An outdoor unit of an air conditioner according to claim 1, wherein:

and a first auxiliary pipe is connected between the inlet pipe and the outlet of the condenser, and the outlet pipe is fixedly connected with the stop valve through welding.

8. An outdoor unit of an air conditioner according to claim 1, wherein:

the inlet pipe is directly connected with the outlet of the condenser through welding, and a second auxiliary pipe is connected between the outlet pipe and the stop valve.

9. An outdoor unit of an air conditioner according to claim 1, wherein:

the electronic expansion valve further comprises a coil and a body, the inlet pipe and the outlet pipe are connected to the body, and the coil is connected with a control panel.