CN214891557U

CN214891557U - Outdoor machine of air conditioner

Info

Publication number: CN214891557U
Application number: CN202121186431.3U
Authority: CN
Inventors: 殷辉
Original assignee: Hisense Shandong Air Conditioning Co Ltd
Current assignee: Hisense Shandong Air Conditioning Co Ltd
Priority date: 2021-05-28
Filing date: 2021-05-28
Publication date: 2021-11-26
Anticipated expiration: 2031-05-28

Abstract

The utility model provides an air condensing units, include: the compressor comprises a base, a compressor and a four-way valve, wherein the axis direction of the compressor is a vertical direction; the suction pipeline is communicated with a suction port of the compressor and the four-way valve and comprises a bent pipe section connected with the suction port; the projection of the axial center line of the valve body of the four-way valve in the vertical direction is L1; the projection of a connecting line of the air suction port and the air exhaust port in the vertical direction is L2, the projection of a center line of the elbow section in the vertical direction is L3, the L1 and the L3 are respectively positioned at two sides of the L2, an included angle alpha formed by the L1 and the L2 is included, and an included angle beta formed by the L2 and the L3 is included, wherein the alpha is more than or equal to 0 degree and less than or equal to 90 degrees, and the beta is more than or equal to 0 degree and less than or equal to 20 degrees. The utility model discloses an adopt the suction line of specific structure and trend, can solve air condensing units low frequency vibration's problem effectively, need not to be equipped with snubber block or damping piece and carry out the damping, reduced manufacturing cost.

Description

Outdoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, especially, relate to an air condensing units.

Background

In an air conditioner compressor piping system (the compressor piping system generally includes a compressor body, a suction pipe assembly, a discharge pipe assembly, a four-way valve assembly, etc.), a single rotor type compressor is eccentrically installed, and thus has periodic torque variation in a low speed, and speed variation occurs when speed control cannot be performed at a high speed, which causes vibration and noise of an air conditioner outdoor unit. Especially, in the case of a large-scale (2P or more) air conditioner, the single-rotor compressor is less used, and thus the problem of vibration is difficult to solve. Among the prior art, through carrying out moment compensation control to the compressor at the low frequency section, solve the low frequency vibration problem, nevertheless, if breathing pipe pipeline design is unreasonable, its vibration and stress also can be great, and the low frequency vibration problem can not obtain better solution. At present, the single-rotor compressor has more price advantage than the double-rotor compressor, and how to reduce the vibration and stress of the single-rotor compressor at the low-frequency section air suction pipe becomes a problem to be solved urgently by each air conditioner manufacturer.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this purpose,

according to an embodiment of the present disclosure, there is provided an outdoor unit of an air conditioner, including:

the compressor comprises a base, a compressor and a four-way valve, wherein the axis direction of the compressor is a vertical direction;

the suction pipeline is communicated with a suction port of the compressor and the four-way valve and comprises a bent pipe section connected with the suction port;

the projection of the axial center line of the valve body of the four-way valve in the vertical direction is L1; the projection of a connecting line of the air suction port and the air exhaust port in the vertical direction is L2, the projection of a center line of the elbow section in the vertical direction is L3, the L1 and the L3 are respectively positioned at two sides of the L2, an included angle alpha formed by the L1 and the L2 is included, and an included angle beta formed by the L2 and the L3 is included, wherein the alpha is more than or equal to 0 degree and less than or equal to 90 degrees, and the beta is more than or equal to 0 degree and less than or equal to 20 degrees.

The technical scheme adopts the air suction pipeline with a specific trend, so that the problems of large vibration and large stress of the low-frequency air suction pipeline of a single rotor of the outdoor unit of the 2P air conditioner can be greatly solved, any damping block or damping block auxiliary product does not need to be added on the air suction pipeline, the extra cost cannot be increased, and the process efficiency is obviously improved.

In some embodiments of this application, the air suction pipeline still includes the first vertical straight tube section and the first slope straight tube section that connect gradually, first vertical straight tube section with the cross valve is connected, the central line of first slope straight tube section is L4 in the projection of vertical direction, the contained angle that L1 and L4 formed is theta, wherein, theta is greater than or equal to 0 degrees and is less than or equal to 90 degrees, and this structure can reduce the stress value of cross valve and air suction pipeline junction.

In some embodiments of the present application, the air suction pipeline further comprises a second inclined straight pipe section and a second vertical straight pipe section, the second inclined straight pipe section is communicated with the elbow section and the second vertical straight pipe section, the center line of the second vertical straight pipe section is L5, the center line of the second inclined straight pipe section 422 is on the projection line of the vertical direction with the included angle formed by the intersection of L3 is B, wherein, B is more than or equal to 40 degrees and less than or equal to 90 degrees. The second inclined straight pipe section is used for communicating the bent pipe section with the second vertical straight pipe section and providing a proper arrangement space for the second vertical straight pipe section, and the second vertical straight pipe section is used for extending the air suction pipeline to the lower part of the liquid storage cylinder.

In some embodiments of the present application, the center line of the second vertical straight tube section is L5, the liquid storage cylinder has an axial center line L6, the vertical distance between L5 and L6 is d1, wherein d1 is greater than or equal to 0mm and less than or equal to 30 mm; the compressor further includes a compressor body, the L5 being located between the compressor body and the L6, facilitating the placement of subsequent tube segments.

In some embodiments of the present application, the air suction pipeline further comprises a first horizontal straight pipe section, a second horizontal straight pipe section and a third vertical straight pipe section which are sequentially communicated; the first horizontal straight pipe section is communicated with the second vertical straight pipe section, the third vertical straight pipe section is communicated with the first inclined straight pipe section, the first horizontal straight pipe section and the second horizontal straight pipe section are arranged at the bottom of the liquid storage cylinder, so that the integral bottom quality and rigidity of the suction pipeline are increased, the purpose of reducing vibration of the suction pipeline is finally achieved, and the third vertical straight pipe section can be fully adapted to the space inside the air conditioner outdoor unit, and the utilization rate of the space is improved.

In some embodiments of this application, first horizontal straight tube section with second horizontal straight tube section is located same horizontal plane, the central line of first horizontal straight tube section is L7, the central line of second horizontal straight tube section is L8, L7 with the crossing contained angle that forms of L8 is gamma, wherein, 60 gamma is ≤ 180, preferably, gamma is 117, the vibration of this structure dispersible air condensing units in the course of the work makes first horizontal straight tube section and second horizontal straight tube section angulate simultaneously around the edge of stock solution cylinder bottom, and faces the stock solution cylinder direction, has reduced the vibration transmission of stock solution cylinder circumferential direction, and then reduces the vibration of whole suction pipeline.

In some embodiments of the present application, the liquid storage cylinder has a radial center line L9, and the perpendicular distance between L9 and L7 is d2, wherein, d2 is 110mm or more and 140mm or less.

In some embodiments of the present application, the elbow section includes a fourth vertical straight pipe section, an arc pipe section and a fifth vertical straight pipe section that communicate in proper order, the fourth vertical straight pipe section with the air suction port is connected, the line at arc pipe section both ends is L10, L10 with the vertical distance between L9 is d3, wherein, 130mm is no less than d3 and no less than 170mm, and the arc pipe section has effectively improved the ability of inhaling of elbow section, and has made things convenient for processing.

In some embodiments of the present application, a vertical distance between one end of the first vertical straight tube section connected to the four-way valve and the L7 is h1, a vertical distance between one end of the first vertical straight tube section connected to the four-way valve and one end of the bent tube section connected to the air suction port is h2, a vertical distance between one end of the first horizontal straight tube section connected to the second vertical straight tube section and one end of the first vertical straight tube section connected to the four-way valve is h3, wherein h1: h2: h3 is 9: 1: 5.

in some embodiments of the present application, α is preferably 50 °, β is preferably 0 °, θ is preferably 60 °, and the downward suction line reduces stress at the bend, and has the best vibration reduction effect.

In some embodiments of the present application, the outer diameter of the suction pipeline is 9.53mm, which saves cost compared with the 12mm suction pipeline adopted in the prior art.

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 these drawings without creative efforts.

Fig. 1 is a partial structural schematic view of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a partial plan view of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 3 is a partial front view of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of a compressor and suction line configuration according to an embodiment of the present disclosure;

FIG. 5 is a side view of a compressor and suction line according to an embodiment of the present disclosure;

FIG. 6 is a top view of an aspiration line according to an embodiment of the present disclosure;

FIG. 7 is a side view of an aspiration line according to an embodiment of the present disclosure;

FIG. 8 is a stress test curve of an inspiratory line under a thermodynamic condition according to an embodiment of the present disclosure.

In the above figures: a base 1; a four-way valve 2; a compressor 3; a liquid storage cylinder 31; an air inlet 311; a compressor body 32; an exhaust port 321; an air intake line 4; a bent pipe section 41; a fourth vertical straight tube section 411; a circular arc tube section 412; a fifth vertical straight tube section 413; a first inclined straight tube section 421; a second inclined straight tube section 422; a second vertical straight tube section 423; a first horizontal straight tube section 424; a second horizontal straight tube section 425; a third vertical straight tube section 426; a first vertical straight tube section 43; a circular arc elbow 44; a condenser 5; a condensing line 6; a bend section stress point 7; and stress points 8 of the suction welding spot part.

Detailed Description

The present invention is specifically described 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 indoor unit and an air conditioner outdoor unit, the air conditioner outdoor unit is a part of a refrigeration cycle including a compressor and an outdoor heat exchanger, the air conditioner indoor unit includes an indoor heat exchanger, and an expansion valve may be provided in the air conditioner indoor unit or the air conditioner outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner is used as a heater in a heating mode when the indoor heat exchanger is used as a condenser, and as a cooler in a cooling mode when the indoor heat exchanger is used as an evaporator.

The utility model provides an air condensing units, the following describes with reference to fig. 1-8 the utility model discloses air condensing units of embodiment, and fig. 1 is according to the local structure schematic diagram of this disclosure embodiment indoor set of air conditioner.

Referring to fig. 1 to 3, the outdoor unit of the air conditioner includes a casing, and a base 1, a four-way valve 2, a compressor 3, and a suction pipe 4 disposed in the casing, and the casing forms an external appearance of the outdoor unit of the air conditioner. The base 1 is arranged in the machine shell, the four-way valve 2 is horizontally arranged on the base 1, the projection of the axial center line of the valve body of the four-way valve 2 in the vertical direction is L1, the axis of the compressor 3 is vertically arranged on the base 1, the suction pipeline 4 is communicated with the suction port 311 and the four-way valve 2, and the suction pipeline 4 is detachably connected between the four-way valve 2 and the compressor 3. Further, the outdoor unit of the air conditioner further comprises a condenser 5 and a condensing pipeline 6, wherein the condenser 5 is arranged in the machine shell and is communicated with the four-way valve 2 through the condensing pipeline 6.

It should be noted that, in this embodiment, the axial direction of the compressor 3 is taken as a vertical direction as a reference for convenience of subsequent description, and the vertical straight tube section or the horizontal straight tube section which is called subsequently respectively indicates that the trend of the corresponding straight tube section is vertically arranged or horizontally arranged.

The compressor 3 includes a liquid storage cylinder 31 and a compressor body 32 connected to the liquid storage cylinder 31, the liquid storage cylinder 31 is provided with a suction port 311, and the compressor body 32 is provided with an exhaust port 312. It should be noted that the working principle of the compressor is well known to those skilled in the art, and therefore, the detailed description thereof is omitted. In this example, the compressor 3 is preferably a single-rotor compressor.

The projection line of the connecting line of the air inlet 311 and the air outlet 321 in the vertical direction is L2, the included angle formed by L1 and L2 is alpha, wherein the alpha is more than or equal to 0 degree and less than or equal to 90 degrees. In the present embodiment, the first and second electrodes are,

the projection of the central line of the bent pipe section in the vertical direction is L3, L1 and L3 are respectively positioned at two sides of L2, an included angle alpha formed by L1 and L2 and an included angle beta formed by L2 and L3 are included, wherein alpha is larger than or equal to 0 degree and smaller than or equal to 90 degrees, and beta is larger than or equal to 0 degree and smaller than or equal to 20 degrees. In this embodiment, α is preferably 50 °; beta is preferably 0 deg., and the structure can reduce the stress of the air suction pipeline 4 in the bent pipe section and the air suction welding point.

Referring to fig. 4, along the direction from the air suction port 311 to the four-way valve 2, the air suction pipeline 4 is sequentially communicated with a bent pipe section 41, a second inclined straight pipe section 422, a second vertical straight pipe section 423, a first horizontal straight pipe section 424, a second horizontal straight pipe section 425, a third vertical straight pipe section 426, a first inclined straight pipe section 421 and a first vertical straight pipe section 43. The projection of the center line of the first inclined straight pipe section 421 in the vertical direction is L4, and L1 forms an included angle theta with L4, wherein 0 DEG-90 DEG theta, in the present embodiment, theta is preferably set to be 60 deg. The center line of the second vertical straight pipe section 423 is L5, the first horizontal straight pipe section 424 and the second horizontal straight pipe section 425 are positioned on the same horizontal plane, the center line of the first horizontal straight pipe section 424 is L7, the center line of the second horizontal straight pipe section 425 is L8, the included angle formed by the intersection of L7 and L8 is gamma, wherein gamma is more than or equal to 60 degrees and less than or equal to 180 degrees. The angle can effectively improve the rigidity of the air suction pipeline 4 so as to reduce the vibration condition of the air suction pipeline 4.

In this embodiment, referring to fig. 4, corresponding circular-arc bends 44 may be further disposed at the interconnection between the straight pipe sections for connection. The size of the corner of the curved elbow 44 should be set according to the relative corner between the straight pipe sections, and should be set according to the installation space in actual installation.

Referring to fig. 4, the second inclined straight pipe section 422 is used for communicating the elbow section 41 and the second vertical straight pipe section 423 and providing a suitable arrangement space for the second vertical straight pipe section 423, the second vertical straight pipe section 423 is used for extending the suction pipeline 4 to the lower part of the liquid storage cylinder 31, and the second vertical straight pipe section 423 is biased towards the direction of the compressor body 32. The first horizontal straight tube section 424 and the second horizontal straight tube section 425 are arranged at the bottom of the liquid storage cylinder 31, so that the overall bottom quality and rigidity of the air suction pipeline 4 are increased, and the aim of reducing the vibration of the air suction pipeline 4 is fulfilled finally. The third vertical straight pipe section 426 is vertically disposed, so that it can be fully adapted to the space inside the outdoor unit 100 of the air conditioner, and the utilization rate of the space is improved. In this embodiment, γ is preferably set to 117 °, and at this angle, the first horizontal straight tube section 424 and the second horizontal straight tube section 425 form an angle around the edge of the bottom of the liquid storage cylinder 31 and face the direction of the liquid storage cylinder 31, so that the vibration transmission in the circumferential direction of the liquid storage cylinder 31 is reduced, and the vibration of the whole suction pipeline is reduced. Meanwhile, the arc elbows 44 are arranged on the first horizontal straight pipe section 424 and the second horizontal straight pipe section 425, so that the vibration of the outdoor unit of the air conditioner in the working process can be dispersed, and the vibration condition is further reduced.

Referring to FIGS. 3 and 5, the liquid storage cylinder 31 has an axial center line L6 and a radial center line L9, the perpendicular distance between the center lines L5 and L6 of the second vertical straight pipe section 423 is d1, wherein 0mm & lt d1 & lt 30mm, L5 is located between the compressor body 32 and L6, and preferably d1 is 10 mm. The vertical distance between the L9 and the center line L7 of the first horizontal straight pipe section 424 is d2, wherein the distance is 110mm & lt d2 & lt 140mm, and d2 is preferably 120mm in the embodiment.

Referring to fig. 4, the elbow section 41 includes a fourth vertical straight pipe section 411, an arc pipe section 412 and a fifth vertical straight pipe section 413 which are sequentially communicated, the fourth vertical straight pipe section 411 is connected with the air suction port 311, the fifth vertical straight pipe section 413 is connected with the second inclined straight pipe section 422, a connecting line of two ends of the arc pipe section 412 is L10, a vertical distance between L10 and a radial center line L9 of the liquid storage cylinder 31 is d3, wherein d3 is not less than 130mm and not more than 170 mm. In the embodiment, d3 is preferably set to be 150mm, and the arc pipe section effectively improves the shock absorption capacity of the bend pipe section 41 and is convenient to process.

Referring to FIGS. 6 and 7, the projection line of the central line of the second inclined straight pipe section 422 in the vertical direction is L11, and the included angle formed by the projection line and L3 is B, wherein B is more than or equal to 40 degrees and less than or equal to 90 degrees; the included angle formed by the straight pipe and the central line L7 of the first horizontal straight pipe section 424 is C, wherein C is more than or equal to 50 degrees and less than or equal to 70 degrees. The projection line L4 of the central line of the first inclined straight pipe section 421 in the vertical direction forms an included angle A with the central line L8 of the second horizontal straight pipe section 425, wherein A is more than or equal to 60 degrees and less than or equal to 180 degrees; the center line of the second vertical straight pipe section 423 and the center line of the second inclined straight pipe section 422 are intersected to form an included angle D, wherein D is more than or equal to 90 degrees and less than or equal to 180 degrees; the central line L4 of the first inclined straight pipe section 421 intersects with the first vertical straight pipe section 43 to form an included angle E, wherein E is more than or equal to 90 degrees and less than or equal to 180 degrees. In this embodiment, it is preferable to set a as 115 °, B as 51 °, C as 64 °, D as 115 °, and E as 151 °, and the suction line in this direction has a better vibration reduction effect, so as to effectively reduce the vibration of the suction line of the compressor of the air conditioner.

With continued reference to fig. 6 and 7, the vertical distance between the end of the first vertical straight pipe section 43 connected to the four-way valve 2 and the L7 is h1, the vertical distance between the end of the first vertical straight pipe section 43 connected to the four-way valve 2 and the end of the bent pipe section 41 connected to the air suction port 311 is h2, and the vertical distance between the end of the first horizontal straight pipe section 424 connected to the second vertical straight pipe section 423 and the end of the first vertical straight pipe section 43 connected to the four-way valve 2 is h3, wherein h1: h2: h3 is 9: 1: 5.

in the air suction pipeline 4 in the embodiment, it is preferable to set α to be 50 °, β to be 0 °, θ to be 60 °, γ to be 117 °, D1 to be 10mm, D2 to be 120mm, D3 to be 150mm, a to be 115 °, B to be 51 °, C to be 64 °, D to be 115 °, and E to be 151 °, so that the air suction pipeline 4 in the direction of the structure has the best vibration reduction effect, and the pipeline vibration stress is effectively reduced. Meanwhile, the outer diameter of the suction pipeline 4 is preferably 9.53mm, and a 1.5P small-sized four-way valve is adopted as the four-way valve, so that the cost is more advantageous compared with the prior art in which a suction pipeline with the outer diameter of 12mm is adopted and a 2P four-way valve is adopted as the four-way valve.

To better illustrate the feasibility of this preferred pipeline, this embodiment uses the above design to perform the stress point test under the heating condition according to fig. 3, where the stress point test is the stress point 7 of the elbow section and the stress point 8 of the suction welding point. The values of the included angle beta are changed for comparison, and the test result is shown in figure 8; if the pipeline is feasible, adding a limit stress value for judgment, and if the value is lower than the limit stress value, indicating that the pipeline is feasible; as can be seen from fig. 8, under the heating working condition, the stress of the bent pipe section and the suction welding spot portion is far lower than the limit stress value under the full frequency section of the suction pipeline, and the operation is feasible; after the beta is changed to 20 degrees, the stress value of the whole frequency section bent pipe section and the stress value of the air suction welding spot are obviously increased, the risk is increased compared with the condition that the beta is 0 degree, and when the beta is finally obtained through a plurality of test results and is 0 degree, the stress of the bent part of the bent pipe section and the stress of the air suction welding spot can be effectively reduced, and the vibration of the air suction pipeline is reduced.

According to the air conditioner outdoor unit provided by the embodiment, the vibration of the pipeline can be reduced through the reasonable pipeline direction and the reasonable bending angle of the air suction pipeline in the air conditioner outdoor unit, the stress at the bent position of the pipeline is reduced, the reliability of the air suction pipeline is improved, the problems of large vibration and large stress of a single rotor of the 2P air conditioner outdoor unit at a low frequency band air suction pipeline can be greatly solved, any damping block or auxiliary product of the damping block is not required to be added on the air suction pipeline, the extra cost is not increased, and the process efficiency is remarkably improved; meanwhile, the outer diameter of the damping valve is 9.53mm, and the damping valve is matched with a 1.5P small-sized four-way valve, so that the damping effect is ensured, the cost is reduced, and certain cost advantage is achieved.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

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 description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

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

the compressor comprises a base, a compressor and a four-way valve, wherein the axis direction of the compressor is a vertical direction, and the compressor comprises a liquid storage cylinder;

2. The outdoor unit of claim 1, wherein the suction line further comprises a first vertical straight pipe section and a first inclined straight pipe section connected in sequence, the first vertical straight pipe section is connected to the four-way valve, a projection of a center line of the first inclined straight pipe section in a vertical direction is L4, an included angle formed by L1 and L4 is θ, wherein θ is greater than or equal to 0 ° and less than or equal to 90 °.

3. The outdoor unit of claim 2, wherein the suction line further comprises a second inclined straight pipe section and a second vertical straight pipe section, the second inclined straight pipe section communicating the bent pipe section and the second vertical straight pipe section;

the included angle formed by the projection line of the central line of the second inclined straight pipe section in the vertical direction and the L3 is B, wherein B is more than or equal to 40 degrees and less than or equal to 90 degrees.

4. The outdoor unit of claim 3, wherein the center line of the second vertical straight pipe section is L5, the liquid storage cylinder has an axial center line L6, and the vertical distance between L5 and L6 is d1, wherein d1 is 0mm or more and 30mm or less; the compressor further includes a compressor body, the L5 being located between the compressor body and the L6.

5. The outdoor unit of claim 3, wherein the suction line further comprises a first horizontal straight tube section, a second horizontal straight tube section, and a third vertical straight tube section which are sequentially connected; the first horizontal straight pipe section is communicated with the second vertical straight pipe section, and the third vertical straight pipe section is communicated with the first inclined straight pipe section.

6. The outdoor unit of claim 5, wherein the first horizontal straight tube section and the second horizontal straight tube section are located on the same horizontal plane, the center line of the first horizontal straight tube section is L7, the center line of the second horizontal straight tube section is L8, and the intersection angle between L7 and L8 is γ, wherein γ is greater than or equal to 60 ° and less than or equal to 180 °.

7. The outdoor unit of claim 6, wherein the liquid storage cylinder has a radial center line L9, and the vertical distance between L9 and L7 is d2, wherein 110 mm. ltoreq. d 2. ltoreq.140 mm.

8. The outdoor unit of claim 7, wherein the bent pipe section comprises a fourth vertical straight pipe section, an arc pipe section and a fifth vertical straight pipe section which are sequentially connected, the fourth vertical straight pipe section is connected with the suction port, a connecting line between two ends of the arc pipe section is L10, a vertical distance between L10 and L9 is d3, wherein d3 is not less than 130mm and not more than 170 mm.

9. The outdoor unit of claim 6, wherein a vertical distance between one end of the first vertical straight tube section connected to the four-way valve and the L7 is h1, a vertical distance between one end of the first vertical straight tube section connected to the four-way valve and one end of the bent tube section connected to the suction port is h2, and a vertical distance between one end of the first horizontal straight tube section connected to the second vertical straight tube section and one end of the first vertical straight tube section connected to the four-way valve is h3, wherein h1: h2: h3 is 9: 1: 5.

10. the outdoor unit of claim 6, wherein α is 50 °, β is 0 °, θ is 60 °, and/or an outer diameter of the suction line is 9.53 mm.